CN107930538A - A kind of overcritical water oxidization reactor, supercritical water oxidation system and method - Google Patents
A kind of overcritical water oxidization reactor, supercritical water oxidation system and method Download PDFInfo
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- CN107930538A CN107930538A CN201711437488.4A CN201711437488A CN107930538A CN 107930538 A CN107930538 A CN 107930538A CN 201711437488 A CN201711437488 A CN 201711437488A CN 107930538 A CN107930538 A CN 107930538A
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/02—Feed or outlet devices therefor
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Abstract
The present invention relates to supercritical Water Oxidation Technology field, more particularly to a kind of overcritical water oxidization reactor, supercritical water oxidation system and method.It can solve the problems, such as that the selection that overcritical water oxidization reactor needs while meets high temperature high voltage resistant and corrosion resistance and bring is difficult, and the blockage problem of overcritical water oxidization reactor, the service life of the overcritical water oxidization reactor can be extended, improve the stability of system operation.A kind of overcritical water oxidization reactor, including：Outer wall, inner cylinder, and the next door being arranged between outer wall and inner cylinder；The circular region of the inner cylinder is reaction zone, and the bottom of the outer wall is equipped with slag-drip opening, and the region between the reaction zone and the slag-drip opening is chill zone；The inner cylinder and the next door enclose the first heat exchanging interlayer connected with the reaction zone, and the next door and the outer wall enclose the second heat exchanging interlayer connected with the chill zone；Product exit is offered on first heat exchanging interlayer.
Description
Technical field
The present invention relates to supercritical Water Oxidation Technology field, more particularly to it is a kind of overcritical water oxidization reactor, overcritical
Water oxygen system and method.
Background technology
So-called supercritical water, refers to when air pressure and temperature reach certain value, the density of the water expanded by high temperature and because
High pressure and water during the exactly like density of vapor compressed.I.e. when water is in its critical point (374.3 DEG C, 22.05MPa)
High-temperature high-pressure state when be referred to as supercritical water (Supercritical Water, abbreviation SCW), water has on this condition
Many unique properties.As the nonpolar organic matters such as hydro carbons can dissolve each other with supercritical water completely as polar organic matter, oxygen,
The gases such as nitrogen, carbon monoxide, carbon dioxide can be also dissolved in supercritical water with arbitrary proportion, and inorganic matter especially salt exists
Solubility very little in supercritical water.Supercritical water also has good mass transfer, heat transfer character.These characteristics cause supercritical water
As a kind of excellent reaction medium.
Supercritical Water Oxidation Technology is by the use of supercritical water as medium, and the material containing organic matter is decomposed into oxygen
The technology of the micromolecular compound such as water and carbon dioxide, since supercritical water and organic matter and gas have good intersolubility,
Therefore, oxidation reaction can occur in oxygen-enriched homogeneous phase for organic matter, and there is no the limit for needing alternate transfer and producing for reaction
System, also, react more thorough, reaction product cleans, is pollution-free, will not produce oxysulfide, nitrogen oxides He bioxin etc.
Pernicious gas, is conducive to environmental protection.
But since supercritical water oxidation condition is high temperature and pressure, and often containing not in supercritical water reaction system
The corrosive ion of supercritical water is dissolved in, therefore, as the container of supercritical water reaction, the resistance to height of overcritical water oxidization reactor
Warm high pressure characteristics and corrosion resistance, and blockage problem of lime-ash caused by supercritical water oxidation etc. directly affect it is super
The completeness of critical oxidation reaction and the stability of system operation, so as to limit the application of overcritical water oxidization reactor.
The content of the invention
The embodiment of the present invention provides a kind of overcritical water oxidization reactor, supercritical water oxidation system and method, passes through
Hierarchical design, can solve overcritical water oxidization reactor needs while meets high temperature high voltage resistant and corrosion resistance and bring
The problem of selection is difficult, and the blockage problem of overcritical water oxidization reactor, can extend the supercritical water oxidation
The service life of device, improves the stability of system operation.
To reach above-mentioned purpose, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, the embodiment of the present invention provides a kind of overcritical water oxidization reactor, including：
Outer wall, inner cylinder, and the next door being arranged between the outer wall and inner cylinder；
Wherein, the circular region of the inner cylinder is reaction zone, and the bottom of the outer wall is equipped with slag-drip opening, the reaction zone and
Region between the slag-drip opening is chill zone；The inner cylinder and the next door enclose first connected with the reaction zone and change
Hot interlayer, the next door and the outer wall enclose the second heat exchanging interlayer connected with the chill zone；
Product exit is offered on first heat exchanging interlayer, heat exchanger tube is provided with first heat exchanging interlayer, it is described
The outer wall of heat exchanger tube forms what is connected respectively with the product exit and the reaction zone with the inner wall of first heat exchanging interlayer
Product pathways；
The heat exchanger tube be used for the first heat transferring medium is passed through during supercritical water oxidation, to the inner cylinder and into
The product entered in the product pathways exchanges heat, and second heat exchanging interlayer is used to be passed through the second heat transferring medium, to described outer
Wall exchanges heat.
Optionally, the heat exchanger tube is spirally coiled in first heat exchanging interlayer.
Optionally, the next door is the tubular structure of upper and lower ends opening, and the upper end in the next door respectively with it is described outer
The side wall of wall is connected with the side wall of the inner cylinder, with enclosing heat exchange of top part area at the top of the top of the outer wall and the inner cylinder
Domain, and second heat exchanging interlayer of lower ending opening is enclosed with the side wall of the outer wall, enclosed with the side wall of the inner cylinder
First heat exchanging interlayer of lower ending opening.
Optionally, second heat exchanging interlayer includes at least two independent first of the corresponding reaction zone from top to bottom
Heat exchange area, and a second independent heat exchange area of the corresponding chill zone；
Wherein, the top of second heat exchange area is equipped with inlet, and the lower ending opening of second heat exchanging interlayer is institute
State the liquid outlet of the second heat exchange area.
Optionally, each first heat exchange area is sequentially connected in series to connect and is changed for one from top to bottom with heat exchange of top part region
Hot media channel.
Optionally, each first heat exchange area and heat exchange of top part region are according to the side of spaced series successively from top to bottom
Formula connection is at least two independent heat exchanging medium passages.
Optionally, each first heat exchange area passes through lower part inlet and top respectively with the heat exchange of top part region
Liquid outlet serial communication.
Optionally, the inlet and liquid outlet with second heat exchange area respectively is provided with second heat exchange area
The helical channel of connection.
Optionally, the liquid direction that goes out of the liquid outlet of second heat exchange area is obliquely.
Second aspect, the embodiment of the present invention provide a kind of supercritical water oxidation system, including supercritical water as described above
Oxidation reactor.
Optionally, the supercritical water oxidation system further includes raw material conveying device, oxygen conveying device and raw material preheating
Device；
Wherein, the feed preheater includes the first pre- hot media channel and material channel, the raw material conveying device
Outlet is connected with the entrance of the material channel, the outlet of the material channel and the inlet communication of the heat exchanger tube, described to change
The outlet of heat pipe is connected with the feed(raw material)inlet of the overcritical water oxidization reactor, the outlet of the oxygen conveying device with it is described
The oxygen intake connection of overcritical water oxidization reactor；
The first pre- hot media channel is used to be passed through the first pre- thermal medium, the question response original to flowing through the material channel
Material is preheated.
Optionally, when the next door be upper and lower ends opening tubular structure, and the upper end in the next door respectively with it is described
The side wall of outer wall is connected with the side wall of the inner cylinder, with enclosing heat exchange of top part at the top of the top of the outer wall and the inner cylinder
Region, and second heat exchanging interlayer of lower ending opening is enclosed with the side wall of the outer wall, enclosed with the side wall of the inner cylinder
Into lower ending opening first heat exchanging interlayer when；
The entrance of the first pre- hot media channel and the heat exchange of top part region in the overcritical water oxidization reactor
Liquid outlet connects, and the outlet of the first pre- hot media channel is connected with the entrance of second heat exchanging interlayer.
Optionally, the oxygen conveying device includes liquid oxygen storage tank, liquid oxygen delivery pump and the liquid oxygen gasifier being sequentially communicated,
Wherein, it is additionally provided with the second pre- hot media channel in the liquid oxygen gasifier, the second pre- hot media channel is used to being passed through the
Two pre- thermal mediums, are heated to be oxygen by the liquid oxygen entered in the liquid oxygen gasifier.
Optionally, the supercritical water oxidation system further includes reaction product cooling device, the reaction product cooling dress
Put including cooling-water duct and reaction product passage, wherein, entrance and the supercritical water oxidation of the reaction product passage
The product exit connection of device, the cooling-water duct is used to be passed through cooling water, to entering the product in the reaction product passage
Exchange heat.
Optionally, the entrance of the cooling-water duct of the reaction product cooling device and the described second pre- hot media channel
Outlet, the outlet of the cooling-water duct are connected with the entrance of the described second pre- hot media channel.
Another further aspect, the embodiment of the present invention provide a kind of supercritical water oxidation method, including：
It is anti-that question response raw material is passed through progress supercritical water oxidation in overcritical water oxidization reactor as described above in batches
Should, meanwhile, into second heat exchanging interlayer being passed through Part I cooling water exchanges heat outer wall, and to supercritical water oxidation
The lime-ash that reaction produces carries out Quench；And when last consignment of question response raw material carries out supercritical water oxidation, next group is treated
Reaction raw materials, which are passed through in the heat exchanger tube, carries out the pre-heat treatment, so constantly circulation, until last batch of question response raw material is led to
Enter untill carrying out supercritical water oxidation in the overcritical water oxidization reactor.
Optionally, question response raw material is passed through in overcritical water oxidization reactor as described above in batches carry out it is overcritical
Before water oxidation reaction, the method further includes：
Part II cooling water is passed through in the chill zone, and fluid-tight is formed to second heat exchanging interlayer.
Optionally, when the next door be upper and lower ends opening tubular structure, and the upper end in the next door respectively with it is described
The side wall of outer wall is connected with the side wall of the inner cylinder, with enclosing heat exchange of top part at the top of the top of the outer wall and the inner cylinder
Region, and second heat exchanging interlayer of lower ending opening is enclosed with the side wall of the outer wall, enclosed with the side wall of the inner cylinder
Into lower ending opening first heat exchanging interlayer when；
The liquid level of the chill zone is higher than the level height of the lower end in the next door, and less than the lower end of the inner cylinder
Level height.
Optionally, the difference in height between the level height of the lower end in the liquid level of the chill zone and the next door is
10-20cm。
The embodiment of the present invention provides a kind of overcritical water oxidization reactor, supercritical water oxidation system and method, by setting
Outer wall and inner cylinder are put, the circular region of the inner cylinder is reaction zone, and the bottom of the outer wall is slag-drip opening, the reaction zone and institute
It is chill zone to state the region between slag-drip opening, and therefore, the circular region of the inner cylinder is the highest region of temperature, by described
Next door is set between inner cylinder and the outer wall, and the inner cylinder and the next door are surrounded by the first heat exchange connected with the reaction zone
Interlayer, the next door and the outer wall are surrounded by the second heat exchanging interlayer connected with the chill zone, first heat exchanging interlayer
Product exit is equipped with, and heat exchanger tube is equipped with first heat exchanging interlayer, so, is occurred in the reaction zone overcritical
During water oxidation reaction, on the one hand, by being passed through the first heat transferring medium into the heat exchanger tube, what supercritical water oxidation produced
Product can discharge after the first heat transferring medium heat exchange through the product exit, in the process, the first heat transferring medium energy
It is enough to exchange heat to the inner cylinder, the temperature of the inner cylinder is reduced, and the inside and outside of the inner cylinder does not have pressure difference, the inner cylinder substantially
Only need to consider its heat-resisting quantity in selection, can effectively reduce what the inner cylinder was easily corroded at high temperature under high pressure
Risk, while the reaction heat that supercritical water oxidation can also be made full use of to produce.On the other hand, by being changed to described second
Hot interlayer is passed through the second heat transferring medium, can exchange heat to the outer wall, and the outer wall only needs to bear to exchange heat in selection
Impacting with high pressure caused by medium, can equally reduce the risk that the outer wall is easily corroded at high temperature under high pressure；Together
When, since chill zone has usually been passed through cooling water, the lime-ash for being produced to supercritical water oxidation carries out Quench, Ke Yitong
The liquid level for controlling the cooling water is crossed, fluid-tight is formed to second heat exchanging interlayer, into second heat exchanging interlayer
While being passed through the second heat transferring medium and cool down to the outer wall, additionally it is possible to fall into the grey solid impurity particle of the outer wall bottom into
Row disturbance, avoids overcritical water oxidization reactor from blocking, in this overcritical water oxidization reactor, by hierarchical design,
Solves the selection difficulty that overcritical water oxidization reactor needs while meets high temperature high voltage resistant and corrosion resistance and bring
Problem, and the blockage problem of overcritical water oxidization reactor, can extend the overcritical water oxidization reactor uses the longevity
Life, improves the stability of system operation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of overcritical water oxidization reactor provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of another overcritical water oxidization reactor provided in an embodiment of the present invention；
Fig. 3 is a kind of structure diagram of supercritical water oxidation system provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of another supercritical water oxidation system provided in an embodiment of the present invention；
Fig. 5 is the structure diagram of another supercritical water oxidation system provided in an embodiment of the present invention；
Fig. 6 is the structure diagram of another supercritical water oxidation system provided in an embodiment of the present invention；
Fig. 7 is the structure diagram of another supercritical water oxidation system provided in an embodiment of the present invention；
Fig. 8 is the structure diagram of another supercritical water oxidation system provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in present patent application embodiment, the technical solution in present patent application embodiment is carried out
Clearly and completely describing, it is clear that described embodiment is only present patent application part of the embodiment, rather than whole
Embodiment.Based on the embodiment in present patent application, those of ordinary skill in the art are without making creative work
All other embodiments obtained, belong to the scope of present patent application protection.
In the description of present patent application, it is to be understood that term " " center ", " on ",
" under ", "front", "rear", "left", "right", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System, is for only for ease of and describes present patent application and simplified description, rather than the device or element of instruction or hint meaning are necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to present patent application.At this specially
In the description of profit application, unless otherwise indicated, " multiple " are meant that two or more.
In a first aspect, the embodiment of the present invention provides a kind of overcritical water oxidization reactor, referring to Fig. 1, including：
Outer wall 1, inner cylinder 2, and the next door 3 being arranged between the outer wall 1 and the inner cylinder 2；
Wherein, the circular region of the inner cylinder 2 is reaction zone A, and the bottom of the outer wall 1 is equipped with slag-drip opening, the reaction
Region between area A and the slag-drip opening is chill zone B, and the inner cylinder 2 and the next door 3 are enclosed to be connected with the reaction zone A
The first logical heat exchanging interlayer C, the next door 3 and outer wall 1 enclose the second heat exchanging interlayer D connected with the chill zone B；
Product exit is offered on the first heat exchanging interlayer C, heat exchanger tube 4, institute are provided with the first heat exchanging interlayer C
The inner wall of the outer wall and the first heat exchanging interlayer C of stating heat exchanger tube 4 is formed to be connected with the product exit and the reaction zone A respectively
Logical product pathways 5；
The heat exchanger tube 4 is used to be passed through the first heat transferring medium during supercritical water oxidation, to 2 He of inner cylinder
Exchange heat into the product in the product pathways 5, the second heat exchanging interlayer D is used to be passed through the second heat transferring medium, to institute
Outer wall 1 is stated to exchange heat.
The embodiment of the present invention provides a kind of overcritical water oxidization reactor, by setting outer wall 1 and inner cylinder 2, the inner cylinder 2
Circular region is reaction zone A, and the bottom of the outer wall 1 is slag-drip opening, the region between the reaction zone A and the slag-drip opening
For chill zone B, therefore, the circular region of the inner cylinder 2 is the highest region of temperature, by the inner cylinder 2 and the outer wall 1
Between next door 3 is set, the inner cylinder 2 and the next door 3 are surrounded by the first heat exchanging interlayer C connected with the reaction zone A, described
Next door 3 and the outer wall 1 are surrounded by the second the heat exchanging interlayer D, the first heat exchanging interlayer C connected with the chill zone B and set
There is product exit, and heat exchanger tube 4 is equipped with the first heat exchanging interlayer C, so, occur in the reaction zone A overcritical
During water oxidation reaction, on the one hand, by being passed through the first heat transferring medium into the heat exchanger tube 4, supercritical water oxidation produces
Reaction product can after the first heat transferring medium heat exchange through the product exit discharge, in the process, it is described first heat exchange
Medium can exchange heat the inner cylinder 2, reduce the temperature of the inner cylinder 2, and the inside and outside of the inner cylinder 2 is not pressed substantially
Difference, the inner cylinder 2 only need to consider its heat-resisting quantity in selection, can effectively reduce the inner cylinder 2 in high temperature and pressure
The risk being easily corroded down, while the reaction heat that supercritical water oxidation can also be made full use of to produce.On the other hand, lead to
Cross to the second heat exchanging interlayer D and be passed through the second heat transferring medium, can exchange heat to the outer wall 1, the outer wall 1 is in selection
When only need to bear impacting with high pressure caused by heat transferring medium, can equally reduce the outer wall 1 and hold at high temperature under high pressure
The risk being easily corroded；Simultaneously as chill zone B has usually been passed through cooling water, for what is produced to supercritical water oxidation
Lime-ash carries out Quench, can form fluid-tight to second heat exchanging interlayer by controlling the liquid level of the cooling water, to
While the second heat transferring medium being passed through in the second heat exchanging interlayer D and cools down to the outer wall 1, additionally it is possible to described to falling into
The grey solid impurity particle of 1 bottom of outer wall is disturbed, and avoids overcritical water oxidization reactor from blocking, anti-in this supercritical water oxidation
Answer in device, by hierarchical design, solving overcritical water oxidization reactor needs while meet high temperature high voltage resistant and corrosion-resistant
Property and the problem of the difficult selection that brings, and the blockage problem of overcritical water oxidization reactor can extend described overcritical
The service life of water oxidation reactor, improves the stability of system operation.
In one embodiment of the invention, the heat exchanger tube 4 is spirally coiled in the first heat exchanging interlayer C.So can
Spiral helicine product pathways 5 are formed in the first heat exchanging interlayer C, improve heat transfer effect of the heat exchanger tube 4 to product.
In another embodiment of the present invention, the next door 3 is the tubular structure of upper and lower ends opening, and the next door 3
Upper end is connected with the side wall of the outer wall 1 and the side wall of the inner cylinder 2 respectively, with the top of the outer wall 1 and the inner cylinder 2
Top encloses heat exchange of top part region E, and the second heat exchanging interlayer D of lower ending opening is enclosed with the side wall of the outer wall 1, with institute
The side wall for stating inner cylinder 2 encloses the first heat exchanging interlayer C of lower ending opening.So, on the one hand, by the top
Heat exchange area E is passed through heat transferring medium, and high temperature caused by can preventing reaction mass back-mixing is to the outer wall 1 and the inner cylinder 2
The corrosion at top, on the other hand, the product exit can be arranged on the top of the first heat exchanging interlayer C, at the same time it can also
The heat exchanger tube 4 is spirally coiled in the first heat exchanging interlayer C from top to bottom, spiral shell extended from top to bottom can be formed
Revolve the product pathways 5 of shape, it is possible to increase the flow of product pathways 5, so as to further improve the heat transfer effect of product.
In a preferred embodiment of the present invention, the second heat exchanging interlayer D includes the corresponding reaction zone A's from top to bottom
At least two the first independent heat exchange area a, and a second independent heat exchange area b of the corresponding chill zone B；
Wherein, the top of the second heat exchange area b is equipped with inlet, and the lower ending opening of the second heat exchanging interlayer D is
The liquid outlet of the second heat exchange area b.
In embodiments of the present invention, by the way that the second heat exchanging interlayer D to be divided into the first independent heat exchange from top to bottom
Region a and the second heat exchange area b, it is possible to increase the heat transfer effect of the outer wall 1.Meanwhile by the second heat exchange area b
The second heat transferring medium is passed through, second heat transferring medium can change while exchanging heat to the outer wall 1 through described second
The liquid outlet of thermal region b enters the chill zone B, and the cooling water in chill zone B is disturbed, can be avoided in chill zone B
Grey solid impurity particle deposition, improve deslagging effect.
Here, the first heat exchange area a and the second heat exchange area b can be by being arranged on the second heat exchanging interlayer D
Interior annular baffle is separated to form.
Wherein, in the first possible implementation, each first heat exchange area a and heat exchange of top part region E is under
It is a heat exchanging medium passage to connection is above sequentially connected in series.In this possible implementation, the first heat transfer zone of the bottom
The temperature for the heat transferring medium that domain a is passed through is minimum, and more up, the temperature of heat transferring medium gradually rises, and can realize that fully recycling is anti-
Should be hot, and being capable of using water wisely.
Here by taking the sub- heat exchange area is n as an example, to each first heat exchange area a and heat exchange of top part region E
The specific connection mode for being sequentially connected in series connection illustrates.
Specifically, referring to Fig. 1, each first heat exchange area a is changed labeled as first layer first successively from top to bottom
Thermal region a1, the first heat exchange area of second layer a2 ... and the first heat exchange area of n-th layer an, passes through n-th layer by the second heat transferring medium
The inlet of first heat exchange area an is passed through in the sub- heat exchange area an of the n-th layer, then respectively by next the first heat exchange area of layer
Inlet of the liquid outlet successively with the first heat exchange area of last layer connect (i.e. the liquid outlet of the first heat exchange area of n-th layer an with
The inlet connection of (n-1)th straton heat exchange area a (n-1), the liquid outlet and n-th -2 of (n-1)th layer of first heat exchange area a (n-1)
The inlet connection ... of the first heat exchange area a (n-2) of layer, the liquid outlet and the first straton of second the first heat exchange area of straton a2
The inlet connection of first heat exchange area a1), finally, the liquid outlet of first the first heat exchange area of straton a1 is changed with the top
The inlet connection of thermal region E, second heat transferring medium are discharged from the liquid outlet of the heat exchange of top part region E.
In second of possible implementation, referring to Fig. 2, each first heat exchange area a and heat exchange of top part region E is pressed
It is at least two heat exchanging medium passages that according to from top to bottom, the mode of spaced series, which connects, successively.In this possible implementation
In, by the way that each first heat exchange area a and heat exchange of top part region E is passed through at least two heat exchanging medium passage spaced series
Connection, compared with by a heat exchanging medium passage serial communication, can increase the temperature difference between heat transferring medium and material, improve
Heat exchange efficiency, and can realize the abundant recycling and using water wisely of heat by setting rational series connection.
Here by taking first heat exchange area is n as an example, to each first heat exchange area a and heat exchange of top part region
E is that the specific connection modes of at least two heat exchanging medium passages is said by connecting successively in the way of spaced series from top to bottom
It is bright.
Specifically, each first heat exchange area a and heat exchange of top part region E can be divided at least two groups from top to bottom, make
Obtain in each group and be spaced between each first heat exchange area a, and cause heat exchange of top part region E and institute in the group from top to bottom
Arrangement last first heat exchange area a between be spaced, by each group each heat exchange area respectively from top to bottom according to
Secondary serial communication is an independent heat exchanging medium passage.
Here, with each first heat exchange area a and heat exchange of top part region E according to spaced series successively from top to bottom
Mode is connected to be illustrated exemplified by two heat exchanging medium passages, specifically, by the first heat exchange area a from top to bottom successively
Labeled as the first heat exchange area of first layer a1, the first heat exchange area of second layer a2 ... and the first heat exchange area of n-th layer an, can be with
By the second heat transferring medium respectively from the inlet of the first heat exchange area of n-th layer an and (n-1)th layer of first heat exchange area a (n-1)
Inlet is passed through, respectively by the liquid outlet of next the first heat exchange area of layer in each the first heat exchange area of even level and last layer the
One heat exchange area inlet connection, by the liquid outlet of next the first heat exchange area of layer in each the first heat exchange area of odd-level with
The first heat exchange area of n-th layer an (such as when the n is even number, is gone out liquid by the inlet connection of the first heat exchange area of last layer
Mouthful connected with the inlet of the n-th -2 layers first heat exchange area a (n-2), the liquid outlet of the n-th -2 layers first heat exchange area a (n-2) and
The inlet connection ... of the n-th -4 layers first heat exchange area a (n-4), the liquid outlet and the second layer of the 4th layer of first heat exchange area a4
The inlet connection of first heat exchange area a2, the liquid outlet of (n-1)th layer of first heat exchange area a (n-1) and the n-th -3 layers first are changed
The inlet connection of thermal region a (n-3), the liquid outlet of the n-th -3 layers first heat exchange area da (n-3) are changed with the n-th -5 straton first
The inlet connection ... of thermal region da (n-5), liquid outlet and the first heat transfer zone of first layer of the first heat exchange area a3 of third layer
The inlet connection of domain a1), finally, by the liquid outlet of the first heat exchange area of second layer a2 and the inlet of heat exchange of top part region E
Connection, the liquid outlet and the liquid outlet row of the first heat exchange area of first layer a1 that heat transferring medium can be respectively through heat exchange of top part region E
Go out.
Wherein, it is each when each first heat exchange area a and heat exchange of top part region E are divided into more than three groups from top to bottom
A heat exchange area can be spaced between each heat exchange area in group to be arranged, and can also be spaced more than 2 heat exchange areas
Arranged, do not limited here.
In order to further improve heat transfer effect, it is preferred that referring to Fig. 1 and Fig. 2, each first heat exchange area a and institute
Heat exchange of top part region E is stated respectively by lower part inlet and top liquid outlet serial communication.
In another embodiment of the present invention, multi-point thermo detector 7, the multi-point thermo detector 7 are additionally provided with the reaction zone A
For being measured to the temperature at different height.
In another embodiment of the present invention, referring to Fig. 1 and Fig. 2, be provided with the second heat exchange area b respectively with it is described
The helical channel 6 that the inlet of second heat exchange area b is connected with liquid outlet.
In embodiments of the present invention, by being passed through the second heat transferring medium, second heat exchange to the second heat exchange area b
Medium can enter in the chill zone B through the helical channel 6, and the region of the chill zone B can be corresponded to the outer wall 1
Individually cooled down, and since the chill zone B has usually been passed through cooling water, by the second heat exchanging interlayer C's
Lower ending opening forms fluid-tight, and second heat transferring medium causes to disturb into the chill zone B to the cooling water of the chill zone B
It is dynamic, it can prevent from falling into the deposition of the grey solid impurity particle of 1 bottom of outer wall, so as to be conducive to the discharge of lime-ash, avoid occurring stifled
Plug.
In the another preferred embodiment of the present invention, the liquid outlet of the second heat exchange area b goes out liquid direction for obliquely.
So, the lime-ash at slag-drip opening is oliquely downward washed away, easy to the discharge of lime-ash.
Here it is possible to the position that the inner side of the outer wall 1 is corresponded to the liquid outlet of the second heat exchange area b is arranged to oblique
Face structure, the second heat transferring medium in the second heat exchange area b can flow out described second obliquely along the inner side of the outer wall 1
Heat exchange area b.
Further, go out the liquid direction and the angle of horizontal plane of the liquid outlet of the second heat exchange area b are 15-45 degree.
In one embodiment of the invention, referring to Fig. 1 and Fig. 2, it is also equipped with the top of the overcritical water oxidization reactor
Feed nozzle 8, the feed nozzle 8 are connected with the reaction zone A.
Second aspect, the embodiment of the present invention provide a kind of supercritical water oxidation system, referring to Fig. 3, including it is as described above
Overcritical water oxidization reactor 01.
The embodiment of the present invention provides a kind of supercritical water oxidation system, since the supercritical water oxidation system is using as above
The overcritical water oxidization reactor 01, and the overcritical water oxidization reactor 01 is by setting outer wall 1 and inner cylinder 2, institute
It is reaction zone A to state the circular region of inner cylinder 2, and the bottom of the outer wall 1 is slag-drip opening, the reaction zone A and the slag-drip opening it
Between region be chill zone B, therefore, the circular region of the inner cylinder 2 is the highest region of temperature, by 2 He of inner cylinder
Next door 3 is set between the outer wall 1, and the inner cylinder 2 and the next door 3 are surrounded by the first heat exchange connected with the reaction zone A
Interlayer C, the next door 3 and the outer wall 1 are surrounded by the second heat exchanging interlayer D connected with the chill zone B, first heat exchange
Interlayer C is equipped with product exit, and is equipped with heat exchanger tube 4 in the first heat exchanging interlayer C, so, is sent out in the reaction zone A
During raw supercritical water oxidation, on the one hand, by being passed through the first heat transferring medium, supercritical water oxidation into the heat exchanger tube 4
Reacting the product produced can discharge after the first heat transferring medium heat exchange through the product exit, in the process, described first
Heat transferring medium can exchange heat the inner cylinder 2, reduce the temperature of the inner cylinder 2, and the inside and outside of the inner cylinder 2 does not have substantially
Pressure difference, the inner cylinder 2 only need to consider its heat-resisting quantity in selection, can effectively reduce the inner cylinder 2 in high temperature height
The risk being easily corroded is depressed, while the reaction heat that supercritical water oxidation can also be made full use of to produce.On the other hand,
By being passed through the second heat transferring medium to the second heat exchanging interlayer D, can exchange heat to the outer wall 1, the outer wall 1 is selecting
Only need to bear impacting with high pressure caused by heat transferring medium during material, can equally reduce the outer wall 1 at high temperature under high pressure
The risk being easily corroded；Simultaneously as chill zone B has usually been passed through cooling water, for being produced to supercritical water oxidation
Lime-ash carry out Quench, fluid-tight can be formed to second heat exchanging interlayer by controlling the liquid level of the cooling water,
While the second heat transferring medium being passed through into the second heat exchanging interlayer D and cools down to the outer wall 1, additionally it is possible to falling into
The grey solid impurity particle for stating 1 bottom of outer wall is disturbed, and avoids overcritical water oxidization reactor from blocking, in this supercritical water oxidation
In reactor, by hierarchical design, solving overcritical water oxidization reactor needs while meets high temperature high voltage resistant and corrosion resistant
Corrosion and the problem of the difficult selection that brings, and the blockage problem of overcritical water oxidization reactor, can extend described super face
The service life of boundary's water oxidation reactor, improves the stability of system operation.
In another embodiment of the present invention, referring to Fig. 3, the supercritical water oxidation system further includes raw material conveying device
02nd, oxygen conveying device 03 and feed preheater 04；
Wherein, the feed preheater 04 includes the first pre- hot media channel and material channel, the raw material conveying device
02 outlet is connected with the entrance of the material channel, the outlet of the material channel and the inlet communication of the heat exchanger tube 4, institute
The outlet for stating heat exchanger tube 4 is connected with the feed(raw material)inlet of the overcritical water oxidization reactor 01, the oxygen conveying device 03
Outlet is connected with the oxygen intake of the overcritical water oxidization reactor 01；
The first pre- hot media channel is used to be passed through the first pre- thermal medium, the question response original to flowing through the material channel
Material is preheated.
So, by be conveyed into after question response raw material is preheated in the heat exchanger tube 4 to the inner cylinder 1 and into
The product for entering the product pathways exchanges heat, and while being preheated to the question response raw material, makes full use of reaction
Heat.
Wherein, the described first pre- thermal medium can be hot water.
In order to make full use of heat, it is preferred that when the next door 3 be upper and lower ends opening tubular structure, and it is described every
The upper end of wall 3 is connected with the side wall of the outer wall 1 and the side wall of the inner cylinder 2 respectively, with the top of the outer wall 1 and described interior
The top of cylinder 2 encloses heat exchange of top part region E, and second heat exchange of lower ending opening is enclosed with the side wall of the outer wall 1
Interlayer D, when enclosing the first heat exchanging interlayer C of lower ending opening with the side wall of the inner cylinder 2；
The entrance of the first pre- hot media channel is connected with the liquid outlet of the heat exchange of top part region E, and described first is pre-
The outlet of hot media channel is connected with the entrance of the second heat exchanging interlayer D.
Wherein, referring to Fig. 4, the raw material conveying device 02 can include raw material storage tank 021 and delivery pump 022, described defeated
The input terminal of pump 022 is sent to be connected with the raw material storage tank 021, the import of the output terminal of the delivery pump 022 and the heat exchanger tube 4
Connection.
In another embodiment of the present invention, the oxygen conveying device 03 includes liquid oxygen storage tank 031, the liquid oxygen being sequentially communicated
Delivery pump 032 and liquid oxygen gasifier 033；
Wherein, the liquid oxygen gasifier 033 can also include the second pre- hot media channel, the second pre- hot media channel
033 is used to be passed through the second pre- thermal medium, and the liquid oxygen entered in the liquid oxygen gasifier 033 is heated to be oxygen.
Wherein, the described second pre- thermal medium can be hot water.
In another embodiment of the present invention, referring to Fig. 5, it is cold that the supercritical water oxidation system can also include reaction product
But device 05, the reaction product cooling device 05 can include cooling medium channel and reaction product passage, wherein, it is described anti-
The entrance of product pathways is answered to be connected with the product exit of the supercritical water oxidation device 01, the cooling medium channel is used to be passed through
Medium is cooled down, is exchanged heat to entering the product in the reaction product passage.
Wherein, the cooling medium can be cooling water.
For using water wisely, and improve heat exchange efficiency, it is preferred that the cooling medium of the reaction product cooling device 05 leads to
The outlet of the entrance in road and the described second pre- hot media channel, the outlet of the cooling medium channel and the described second preheating
The entrance connection of medium channel.
In one more embodiment of the present invention, referring to Fig. 6, the supercritical water oxidation system can also include gas-liquid separator
06, the gas-liquid separator 06 includes product inlet, and gas vent and liquid outlet；
Wherein, the outlet of the product inlet of the gas-liquid separator 06 and the reaction product passage.
By carrying out gas-liquid separation to reaction product, classification processing can be carried out to the reaction product of different conditions respectively.
Wherein, in order to further improve the heat transfer effect of the first pre- thermal medium and the inner cylinder 1 and product, referring to Fig. 7 and
Fig. 8, it is preferred that be additionally provided with first circulation cooling system between the outlet of the first pre- hot media channel and the heat exchanger tube 4
System 07, the first circulation cooling system 07 are used to further cool down the described first pre- thermal medium.
Likewise, in order to further improve the heat transfer effect of the described second pre- thermal medium and reaction product.Preferably, it is described
Second circulation cooling system 08 is additionally provided between the outlet of second pre- hot media channel and the entrance of the cooling medium channel,
The second circulation cooling system 08 is used to further cool down the described second pre- thermal medium.
The third aspect, the embodiment of the present invention provide a kind of supercritical water oxidation method, including：
It is anti-that question response raw material is passed through progress supercritical water oxidation in overcritical water oxidization reactor as described above in batches
Should, meanwhile, into second heat exchanging interlayer being passed through Part I cooling water exchanges heat outer wall, and to supercritical water oxidation
The lime-ash that reaction produces carries out Quench；And when last consignment of question response raw material carries out supercritical water oxidation, next group is treated
Reaction raw materials, which are passed through in the heat exchanger tube, carries out the pre-heat treatment, so constantly circulation, until last batch of question response raw material is led to
Enter untill carrying out supercritical water oxidation in the overcritical water oxidization reactor.
The embodiment of the present invention provides a kind of supercritical water oxidation method, anti-by using supercritical water oxidation as described above
Device is answered, since the overcritical water oxidization reactor is by setting outer wall and inner cylinder, the circular region of the inner cylinder is reaction zone,
The bottom of the outer wall is slag-drip opening, and the region between the reaction zone and the slag-drip opening is chill zone, therefore, the inner cylinder
Circular region is the highest region of temperature, by setting next door, the inner cylinder and institute between the inner cylinder and the outer wall
State next door and be surrounded by the first heat exchanging interlayer connected with the reaction zone, the next door and the outer wall are surrounded by and the Quench
Second heat exchanging interlayer of area's connection, first heat exchanging interlayer is equipped with product exit, and is equipped with first heat exchanging interlayer
Heat exchanger tube, so, supercritical water oxidation is carried out by the way that question response raw material is passed through the reaction zone in batches, and upper
While supercritical water oxidation occurs for a collection of question response raw material, next group question response raw material is passed through in heat exchanger tube to inner cylinder
Exchange heat with the product entered in product pathways, reaction raw materials can be treated using reaction heat and preheated, so as to fill
Divide and utilize thermal energy, at the same time, additionally it is possible to exchange heat to inner cylinder, reduce the risk that inner cylinder is easily corroded at high temperature under high pressure；Separately
On the one hand, by being passed through Part I cooling water into second heat exchanging interlayer, outer wall can be carried out during the reaction
Heat exchange, and the lime-ash to falling into outer wall bottom carries out Quench, additionally it is possible to by Part I cooling water by the lime-ash at slag-drip opening
Take out of in time, avoid generation slag-drip opening from blocking, solving overcritical water oxidization reactor needs while meet high temperature resistant height
Pressure property and corrosion resistance and the problem of the difficult selection that brings, and the blockage problem of overcritical water oxidization reactor, Neng Gouyan
The service life of the long overcritical water oxidization reactor, improves the stability of system operation.
In one embodiment of the invention, question response raw material is being passed through overcritical water oxidization reactor as described above in batches
Before middle carry out supercritical water oxidation, the method further includes：
Part II cooling water is passed through in the chill zone, and fluid-tight is formed to second heat exchanging interlayer.
By being passed through Part II cooling water in the chill zone in advance, the lime-ash that supercritical water oxidation produces can be straight
Connected the Part II cooling water and carry out Quench, also, Part I cooling is being passed through into second heat exchanging interlayer
When water cools down the outer wall, the Part I cooling water can flow into the chill zone, due to the of the chill zone
Two part cooling waters form fluid-tight to second heat exchanging interlayer, therefore, when the Part I cooling water in the second heat exchanging interlayer
During into the chill zone, Part II cooling water can be caused to disturb, avoid the grey solid impurity particle in Part II cooling water
Deposition, so as to further avoid overcritical water oxidization reactor from blocking, further improves the stability of system operation.
In another embodiment of the present invention, when the tubular structure that the next door is upper and lower ends opening, and the next door
Upper end is connected with the side wall of the outer wall and the side wall of the inner cylinder respectively, with the top of the outer wall and the top of the inner cylinder
Enclose heat exchange of top part region, and second heat exchanging interlayer of lower ending opening is enclosed with the side wall of the outer wall, it is and described
When the side wall of inner cylinder encloses first heat exchanging interlayer of lower ending opening；
The liquid level of the chill zone is higher than the level height of the lower end in the next door, and less than the lower end of the inner cylinder
Level height.
In embodiments of the present invention, be conducive to form fluid-tight to second heat exchanging interlayer, and make the reaction zone and institute
Holding connects between stating the first heat exchanging interlayer, so as to ensure that inner cylinder is inside and outside almost without pressure difference, reduces the inner cylinder in high temperature height
Depress the risk being easily corroded.
In order to strengthen disturbance effect of the Part I cooling water to Part II cooling water, it is preferred that the Quench
Difference in height between the level height of the lower end in the liquid level in area and the next door is 10-20cm.
Hereinafter, the embodiment of the present invention will illustrate the technique effect of the present invention by embodiment.These embodiments are only
Be in order to illustrate the present invention and propose example, those skilled in the art it is appreciated that the scope of the present invention from this
The limitation of a little embodiments.
Embodiment 1
In embodiment 1, to carry out supercritical water oxidation to municipal sludge using supercritical water oxidation system as shown in Figure 7
Illustrated exemplified by processing.
The municipal sludge that concentration is 13% is stored in raw material storage tank 021, and (pressure reaches through 022 pressurization of raw material pump
It is transported to feed preheater 04 after 23MPa) to carry out being preheated to 120 DEG C, the raw material after preheating enters in heat exchanger tube 4, through pre- again
Hot charge temperature reaches 225 DEG C and enters the reaction zone A by the feed nozzle 8, meanwhile, by by liquid oxygen storage tank 031
In liquid oxygen be transported to after the pressurization of liquid oxygen pump 032 in liquid oxygen gasifier 033, gasification is oxygen and passes through after being exchanged heat by hot water
The feed nozzle 8 enters the reaction zone A and gives birth to supercritical water oxidation in reaction zone A hybrid concurrencies with the raw material, instead
It is 665 DEG C to answer temperature, and product reaches product exit through product pathways 5 after reaction, and the temperature of product exit is 320 DEG C, reaction production
Thing enters reaction product cooling device 05, and material realizes the final separation of product through gas-liquid separator 06 after cooling.Sludge lime-ash
Middle carbon content is 0.5%.Second heat exchanging interlayer D includes three layer of first heat exchange area, and cooling water exchanges heat from undermost first
The inlet of region a3 is passed through, and the first heat exchange area with upper strata and heat exchange of top part region E serial communications successively from the bottom up,
The liquid outlet temperature of heat exchange of top part region E is 240 DEG C after heat exchange, is reduced to 104 DEG C with temperature after raw material preheating, cooling water enters
First circulation cooling water system 07 is further cooled down, as the first heat exchange area a and the water of heat exchange of top part region E after cooling
Source is supplied；127 DEG C are warming up to after cooling water heat exchange in reaction product cooling device 05, as the heat source of liquid oxygen gasifier 033,
Temperature is reduced to 47 DEG C after heat exchange, and water is further cooled down into second circulation cooling water system 08 after cooling, water conduct after cooling
The water source of reaction product cooling device 05.System capacity can be made full use of in the process, reduce system water consumption.
Embodiment 2
In embodiment 2, to carry out supercritical water oxidation to pharmacy waste water using supercritical water oxidation system as shown in Figure 8
Illustrated exemplified by processing.
Pharmacy waste water is stored in raw material storage tank 021, and is conveyed after 022 pressurization (pressure reaches 24MPa) of raw material pump
Carry out being preheated to 115 DEG C to feed preheater 04, the raw material after preheating enters in heat exchanger tube 4, reaches through preheating material temperature again
Enter reaction zone A to 230 DEG C, and by feed nozzle 8；Meanwhile by by the liquid oxygen in liquid oxygen storage tank 031 through liquid oxygen pump 032
It is transported to after pressurization in liquid oxygen gasifier 033, gasifies after being exchanged heat by hot water as oxygen and institute is entered by the feed nozzle 8
State reaction zone A and give birth to supercritical water oxidation in reaction zone A hybrid concurrencies with the raw material, reaction temperature is 685 DEG C, after reaction
Product reaches product exit through product pathways 5, and the temperature of product exit is 343 DEG C, and reaction product is realized through gas-liquid separator 06
The final separation of product.Water outlet COD is 46mg/L.Second heat exchanging interlayer D includes three layer of first heat exchange of the corresponding reaction zone A
Region a, the inlet from the 3rd layer of the first heat exchange area and the inlet of the 2nd layer of the first heat exchange area are passed through cooling water respectively, and
It is one article of independent cooling-water duct by the 3rd layer first heat exchange area a3 and the 1st layer the first heat exchange area a1 serial communication, by
2 layer of first heat exchange area a2 and heat exchange of top part region E series connection is an independent cooling-water duct, and heat exchange postcooling water is as former
Expect the origin of heat of preheater 04, with further being cooled down into first circulation cooling water system 07 after raw material preheating, cooling
Afterwards as the first heat exchange area a and the water source supply of heat exchange of top part region E；Cooling water heat exchange in reaction product cooling device 05
Heat source as liquid oxygen gasifier 033 afterwards, water is further cooled down into second circulation cooling water system 08 after heat exchange, water after cooling
Water source as reaction product cooling device 05.System capacity can be made full use of in the process, reduce system water consumption.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention answers the scope of the claims of being subject to.
Claims (19)
- A kind of 1. overcritical water oxidization reactor, it is characterised in that including：Outer wall, inner cylinder, and the next door being arranged between the outer wall and inner cylinder；Wherein, the circular region of the inner cylinder is reaction zone, and the bottom of the outer wall is equipped with slag-drip opening, the reaction zone and described Region between slag-drip opening is chill zone；The inner cylinder and the next door enclose the first heat exchange folder connected with the reaction zone Layer, the next door and the outer wall enclose the second heat exchanging interlayer connected with the chill zone；Product exit is offered on first heat exchanging interlayer, heat exchanger tube, the heat exchange are provided with first heat exchanging interlayer The outer wall of pipe forms the product connected respectively with the product exit and the reaction zone with the inner wall of first heat exchanging interlayer Passage；The heat exchanger tube is used to be passed through the first heat transferring medium during supercritical water oxidation, to the inner cylinder and into institute The reaction product stated in product pathways exchanges heat, and second heat exchanging interlayer is used to be passed through the second heat transferring medium, to described outer Wall exchanges heat.
- 2. overcritical water oxidization reactor according to claim 1, it is characterised in thatThe heat exchanger tube is spirally coiled in first heat exchanging interlayer.
- 3. overcritical water oxidization reactor according to claim 1 or 2, it is characterised in thatThe next door is the tubular structure of upper and lower ends opening, and the upper end in the next door side wall with the outer wall and institute respectively State the side wall connection of inner cylinder, with enclosing heat exchange of top part region at the top of the top of the outer wall and the inner cylinder, and with it is described The side wall of outer wall encloses second heat exchanging interlayer of lower ending opening, and the institute of lower ending opening is enclosed with the side wall of the inner cylinder State the first heat exchanging interlayer.
- 4. overcritical water oxidization reactor according to claim 3, it is characterised in thatSecond heat exchanging interlayer includes at least two the first independent heat exchange areas of the corresponding reaction zone from top to bottom, and One the second independent heat exchange area of the corresponding chill zone；Wherein, the top of second heat exchange area is equipped with inlet, and the lower ending opening of second heat exchanging interlayer is described the The liquid outlet of two heat exchange areas.
- 5. overcritical water oxidization reactor according to claim 4, it is characterised in thatIt is a heat exchanging medium passage that each first heat exchange area is sequentially connected in series and connects from top to bottom with heat exchange of top part region.
- 6. overcritical water oxidization reactor according to claim 4, it is characterised in thatEach first heat exchange area and heat exchange of top part region by connecting as extremely in the way of spaced series successively from top to bottom Few two independent heat exchanging medium passages.
- 7. the overcritical water oxidization reactor according to claim 5 or 6, it is characterised in thatEach sub- heat exchange area and the heat exchange of top part region are connected company by lower part inlet and top liquid outlet respectively It is logical.
- 8. overcritical water oxidization reactor according to claim 4, it is characterised in thatBe provided with second heat exchange area connected respectively with the inlet and liquid outlet of second heat exchange area it is spiral Shape passage.
- 9. overcritical water oxidization reactor according to claim 3, it is characterised in thatThe liquid outlet of second heat exchange area goes out liquid direction for obliquely.
- 10. a kind of supercritical water oxidation system, it is characterised in that including such as claim 1-9 any one of them supercritical water Oxidation reactor.
- 11. supercritical water oxidation system according to claim 10, it is characterised in thatThe supercritical water oxidation system further includes raw material conveying device, oxygen conveying device and feed preheater；Wherein, the feed preheater includes the first pre- hot media channel and material channel, the outlet of the raw material conveying device Connected with the entrance of the material channel, the outlet of the material channel and the inlet communication of the heat exchanger tube, the heat exchanger tube Outlet connected with the feed(raw material)inlet of the overcritical water oxidization reactor, the outlet of the oxygen conveying device super is faced with described The oxygen intake connection of boundary's water oxidation reactor；The first pre- hot media channel is used to be passed through the first pre- thermal medium, to flow through the question response raw material of the material channel into Row preheating.
- 12. supercritical water oxidation system according to claim 11, it is characterised in thatWhen the tubular structure that the next door is upper and lower ends opening, and the upper end in the next door respectively with the side wall of the outer wall and The side wall connection of the inner cylinder, with enclosing heat exchange of top part region at the top of the top of the outer wall and the inner cylinder, and with institute The side wall for stating outer wall encloses second heat exchanging interlayer of lower ending opening, and lower ending opening is enclosed with the side wall of the inner cylinder During first heat exchanging interlayer；The entrance of the first pre- hot media channel goes out liquid with the heat exchange of top part region in the overcritical water oxidization reactor Mouth connection, the outlet of the first pre- hot media channel is connected with the entrance of second heat exchanging interlayer.
- 13. supercritical water oxidation system according to claim 11, it is characterised in thatThe oxygen conveying device includes liquid oxygen storage tank, liquid oxygen delivery pump and the liquid oxygen gasifier being sequentially communicated, wherein, the liquid The second pre- hot media channel is additionally provided with gasification device, the second pre- hot media channel is used to be passed through the second pre- thermal medium, The liquid oxygen entered in the liquid oxygen gasifier is heated to be oxygen.
- 14. supercritical water oxidation system according to claim 13, it is characterised in thatThe supercritical water oxidation system further includes reaction product cooling device, and the reaction product cooling device includes cooling water Passage and reaction product passage, wherein, the product exit of the entrance of the reaction product passage and the supercritical water oxidation device Connection, the cooling-water duct are used to be passed through cooling water, exchange heat to entering the product in the reaction product passage.
- 15. supercritical water oxidation system according to claim 14, it is characterised in thatThe outlet of the entrance of the cooling-water duct of the reaction product cooling device and the described second pre- hot media channel, institute The outlet for stating cooling-water duct is connected with the entrance of the described second pre- hot media channel.
- A kind of 16. supercritical water oxidation method, it is characterised in that including：Question response raw material is passed through as carried out super face in claim 1-9 any one of them overcritical water oxidization reactors in batches Boundary's water oxidation reaction, meanwhile, into second heat exchanging interlayer being passed through Part I cooling water exchanges heat outer wall, and to super The lime-ash that critical oxidation reaction produces carries out Quench；And when last consignment of question response raw material carries out supercritical water oxidation, Next group question response raw material is passed through in the heat exchanger tube and carries out the pre-heat treatment, so constantly circulation, until last batch of is treated Reaction raw materials are passed through in the overcritical water oxidization reactor untill progress supercritical water oxidation.
- 17. supercritical water oxidation method according to claim 16, it is characterised in thatSurpassed in question response raw material is passed through such as claim 1-9 any one of them overcritical water oxidization reactors in batches Before critical oxidation reaction, the method further includes：Part II cooling water is passed through in the chill zone, and fluid-tight is formed to second heat exchanging interlayer.
- 18. supercritical water oxidation method according to claim 17, it is characterised in thatWhen the tubular structure that the next door is upper and lower ends opening, and the upper end in the next door respectively with the side wall of the outer wall and The side wall connection of the inner cylinder, with enclosing heat exchange of top part region at the top of the top of the outer wall and the inner cylinder, and with institute The side wall for stating outer wall encloses second heat exchanging interlayer of lower ending opening, and lower ending opening is enclosed with the side wall of the inner cylinder During first heat exchanging interlayer；The liquid level of the chill zone is higher than the level height of the lower end in the next door, and is less than the water of the lower end of the inner cylinder Flat height.
- 19. supercritical water oxidation method according to claim 18, it is characterised in thatDifference in height between the level height of the lower end in the liquid level of the chill zone and the next door is 10-20cm.
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