CN108786169A - A kind of crystal system and its method of liquid - Google Patents
A kind of crystal system and its method of liquid Download PDFInfo
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- CN108786169A CN108786169A CN201810802976.9A CN201810802976A CN108786169A CN 108786169 A CN108786169 A CN 108786169A CN 201810802976 A CN201810802976 A CN 201810802976A CN 108786169 A CN108786169 A CN 108786169A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
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- Crystallography & Structural Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The present invention relates to crystallization arts, disclose a kind of crystal system and its method of liquid, including crystallizing tank, circulating pump, cooling tower and sink；It further include condenser, crystallizing tank is connected to by first pipe with condenser, air extractor is installed in first pipe, second pipe is additionally provided between crystallizing tank and condenser, check valve is installed on second pipe, the interior steam evaporated of condenser condensation-crystallization tank is simultaneously connect by pipeline with cooling tower, and cooling tower is pipelined to after handling liquid water cooling in sink, and circulating pump pumps to the cold water in sink in condenser.Traditional steam jet pump, draws vapor is replaced to reduce working steam and bring a large amount of heat into cooling system, mitigate cooling burden using high pressure positive blower or vapour compression machine.By a check valve in parallel, to greatest extent using the cold of environment come the steam of condensation-crystallization tank output, only when vapor (steam) temperature is down to close to environment temperature, high pressure positive blower or vapour compression machine work are just put into.
Description
Technical field
The present invention relates to crystallization art more particularly to the crystal systems and its method of a kind of liquid.
Background technology
Traditional titanium liquid method for crystallising is extracted out the steam in crystallizing tank by vacuum equipments such as steam jet pumps, makes crystallizing tank
Interior steam increasing temperature and pressure discharge, then again condenses the steam of extraction with cooling water.This method the problem is that：
It 1. using steam as the power vacuumized, can bring into a large amount of latent heat of vaporization to system, make the consumption of cooling water
Increase.
2. after the temperature in crystallizing tank reduces, interior vacuum degree is high, and steam is very thin, as when the titanium liquid in crystallizing tank
When temperature is down to 20 DEG C, saturated vapor temperature is only 17 DEG C or so, and corresponding saturated vapor density only has 15.35 grams/side,
I.e. 1 side's steam is often sucked out in steam jet pump out of crystallizing tank, and the titanium liquid in crystallizing tank just evaporates 15 grams of water.Produce 1 ton of titanium
White powder evaporates 1.05 tons of water in crystallized region needs out of crystallizing tank, therefore production process needs to consume a large amount of working steam.
Invention content
The present invention crystallizes disadvantage of high cost for liquid in the prior art, provides a kind of system of crystallization of liquid
System and its method.
We understand the problem of several common-senses first：
As long as one, the temperature of water vapour can be used big in principle higher than the temperature for the cooling water that air cooling tower provides
Air cooling tower carrys out condensed steam.
Two, it is suitble to the place in mankind's activity place, the cold water of cooling tower output can be at 35 DEG C or less.
Therefore, as long as we try every possible means that the saturated-steam temperature of the steam of low temperature is allowed to be raised to 35 DEG C or more, so that it may with compared with
The air cooling tower of low cost carrys out condensed steam.Following table is change of the water vapour in the saturated-steam temperature of different saturated vapor pressures
Change characteristic：
From upper table it will be seen that the saturated-steam temperature of water vapour is raised to 40 DEG C from 0 DEG C, saturated vapor pressure only rises
7.7KPa, and the saturated-steam temperature of water vapour is raised to 100 DEG C from 60 DEG C, although equally heating 40 DEG C, saturated vapor pressure
Rise 81KPa, if using mechanical compression steam heat up, shaft power=P.Q of input, that is, the power consumed be equal to boosting with
The product of flow.We devise this set crystal system accordingly, through trial operation, measure a ton water of titanium dioxide average consumption 67KW.H
Flat, more traditional titanium liquid vacuum crystallization has prodigious advantage.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：
A kind of crystal system of liquid, including crystallizing tank, circulating pump, cooling tower and sink；Further include condenser, knot
Brilliant tank is connected to by first pipe with condenser, and air extractor is equipped in first pipe, is also set between crystallizing tank and condenser
Have second pipe, check valve be installed on second pipe, the steam evaporated in condenser condensation-crystallization tank and by pipeline with it is cold
But tower connects, and cooling tower is pipelined to after handling liquid water cooling in sink, and circulating pump takes out the cold water in sink
It is sent in condenser.
Preferably, air extractor is high pressure positive blower or vapour compression machine.
Preferably, condenser is hydraulic ejector either trumpet cooler or hybrid steam condenser.
A kind of method for crystallising of liquid, includes the following steps：
Step a：The liquid of heat is encased in by inlet valve in crystallizing tank, when liquid reaches setting liquid level
When, the inlet valve and blow-off valve on crystallizing tank are closed, crystallizing tank forms a sealing container；
Step b：Start circulating pump to pump to the cold water in sink in condenser, the steam in crystallizing tank passes through the second pipe
Road is transported in condenser, and the steam evaporated in condenser condensation-crystallization tank simultaneously condenses into liquid water, and the steam in crystallizing tank subtracts
Lead to pressure reduction less, the liquid in crystallizing tank constantly boiling and evaporated vapor under low pressure；
Step c：Start cooling tower, the liquid water that condenser is formed is pipelined in cooling tower, and cooling tower is by liquid
State water conveys after carrying out cooling processing in screw clamp；
Step d：Over time, liquid temperature hot in crystallizing tank constantly reduces, when liquid in crystallizing tank
When mass temperature is close to environment temperature, starting air extractor, air extractor extracts the steam in crystallizing tank and is conveyed to condenser,
Pressure in crystallizing tank persistently reduces so that liquid substance constantly boiling in it and evaporated vapor, the liquid object in crystallizing tank
Combined material continuous decrease temperature crystalline；
Step e：When liquid temperature hot in crystallizing tank drops to 5 DEG C~25 DEG C, stop air extractor, in crystallizing tank
Liquid substance terminates.
Preferably, liquid temperature hot in step a is at 40 DEG C~90 DEG C.
Preferably, the liquid in step b in crystallizing tank constantly boiling and evaporates under the low pressure of 1kpa~70kpa
Steam.
The present invention has significant technique effect as a result of above technical scheme：
Traditional steam jet pump, draws vapor are replaced using high pressure positive blower or vapour compression machine, it is possible to reduce work
Steam brings a large amount of heat into cooling system, mitigates cooling burden.
Using under cryogenic conditions, the pressure of steam very little rises the characteristic that can be obtained very big Wen Sheng, consumes seldom electric power, i.e.,
It can greatly improving vapor (steam) temperature.Thus electric power saving can be connect significantly.
This method can be to greatest extent using the cold of environment come the steam of condensation-crystallization tank output, only when vapor (steam) temperature drops
When to close to environment temperature, high pressure positive blower or vapour compression machine work are just put into.
Description of the drawings
Fig. 1 is the system frame structure schematic diagram of the present invention.
The toponym that each number designation is referred in the figures above is as follows：Wherein, 10-crystallizing tanks, 11-circulating pumps,
It is 12-cooling towers, 13-sinks, 14-condensers, 15-first pipes, 16-air extractors, 17-second pipes, 18-mono-
To valve.
Specific implementation mode
Present invention is further described in detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of crystal system of liquid, as shown in Figure 1, including crystallizing tank 10, circulating pump 11, cooling tower 12 and sink
13, the present embodiment crystallizing tank 10 is used for the titanium liquid of evaporative crystallization heat；Further include condenser 14, crystallizing tank 10 passes through first pipe 15
It is connected to condenser 14, air extractor 16 is installed, air extractor 16 is directly by the steam in crystallizing tank 10 in first pipe 15
It pumps in condenser 14, second pipe 17 is additionally provided between crystallizing tank 10 and condenser 14, list is installed on second pipe 17
To valve 18, check valve 18 is so that condenser 14 carries out condensed steam, crystallizing tank 10 when environment temperature is relatively low using Environmental cold source
When just starting crystallization, air extractor 16 does not work, and the steam in crystallizing tank 10 is directly transported to condenser by second pipe 17
In 14,14 condensation-crystallization tank of condenser, the 10 interior steam evaporated is simultaneously connect by pipeline with cooling tower 12, and condenser 14 is by cold
Condenser 14 forms liquid water and is transported in cooling tower 12 after condensing, cooling tower 12 is defeated by pipeline after handling liquid water cooling
It is sent in sink 13, circulating pump 11 pumps to the cold water in sink 13 in condenser 14.
Air extractor 16 is high pressure positive blower.
Condenser 14 is hydraulic ejector either trumpet cooler or hybrid steam condenser.
A kind of method for crystallising of liquid, includes the following steps：
Step a：The liquid of heat is encased in by inlet valve in crystallizing tank 10, when liquid reaches setting liquid level
When, the inlet valve and blow-off valve on crystallizing tank 10 are closed, crystallizing tank 10 forms a sealing container；
Step b：Start circulating pump 11 to pump to the cold water in sink 13 in condenser 14, the steam in crystallizing tank 10 is logical
Second pipe 17 to be crossed to be transported in condenser 14, the steam evaporated in 14 condensation-crystallization tank 10 of condenser simultaneously condenses into liquid water,
Steam reduction in crystallizing tank 10 leads to pressure reduction, and the liquid in crystallizing tank 10 constantly boiling and evaporates under low pressure
Vapour；
Step c：Start cooling tower 12, the liquid water that condenser 14 is formed is pipelined in cooling tower 12, cooling
Tower 12 conveys after liquid water is carried out cooling processing in screw clamp 13；
Step d：Over time, liquid temperature hot in crystallizing tank 10 constantly reduces, when in crystallizing tank 10
When liquid temperature is close to environment temperature, start air extractor 16, the steam in the extraction crystallizing tank 10 of air extractor 16 is simultaneously defeated
Condenser 14 is given, the pressure in crystallizing tank 10 persistently reduces so that the liquid substance constantly boiling in it and evaporated vapor, knot
Liquid continued down crystallization in brilliant tank 10；
Step e：When liquid temperature hot in crystallizing tank 10 drops to 5 DEG C, stop air extractor 16, in crystallizing tank 10
Liquid substance terminates.
Hot liquid temperature is at 40 DEG C in step a.
Liquid in step b in crystallizing tank 10 constantly boiling and evaporated vapor under the low pressure of 1kpa.
Embodiment 2
Embodiment 2 and 1 feature of embodiment are essentially identical, the difference is that air extractor 16 is vapour compression machine in embodiment 2,
The outlet of vapour compression machine can connect other heating equipments；Condenser 14 is trumpet cooler.
Step e：When liquid temperature hot in crystallizing tank 10 drops to 15 DEG C, stop air extractor 16, in crystallizing tank 10
Liquid substance terminate.
Hot liquid temperature is at 65 DEG C in step a.
Liquid in step b in crystallizing tank 10 constantly boiling and evaporated vapor under the low pressure of 35kpa.
Embodiment 3
Embodiment 3 and 1 feature of embodiment are essentially identical, the difference is that in embodiment 3
Step e：When liquid temperature hot in crystallizing tank 10 drops to 25 DEG C, stop air extractor 16, in crystallizing tank 10
Liquid substance terminate.
Hot liquid temperature is at 90 DEG C in step a.
Liquid in step b in crystallizing tank 10 constantly boiling and evaporated vapor under the low pressure of 70kpa.
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to impartial made by scope of the present invention patent
Variation and modification, should all belong to the covering scope of patent of the present invention.
Claims (6)
1. a kind of crystal system of liquid, including crystallizing tank (10), circulating pump (11), cooling tower (12) and sink (13)；
It is characterized in that：Further include condenser (14), crystallizing tank (10) is connected to by first pipe (15) with condenser (14), the first pipe
Air extractor (16) is installed on road (15), is additionally provided with second pipe (17) between crystallizing tank (10) and condenser (14), second
Check valve (18) is installed on pipeline (17), the steam evaporated in condenser (14) condensation-crystallization tank (10) and by pipeline with it is cold
But tower (12) connects, and cooling tower (12) is pipelined to after handling liquid water cooling in sink (13), circulating pump (11)
Cold water in sink (13) is pumped in condenser (14).
2. a kind of crystal system of liquid according to claim 1, it is characterised in that：Air extractor (16) is high pressure
Wind turbine or vapour compression machine.
3. a kind of crystal system of liquid according to claim 1, it is characterised in that：Condenser (14) sprays for waterpower
Emitter either trumpet cooler or hybrid steam condenser.
4. a kind of method for crystallising of liquid, it is characterised in that：Include the following steps：
Step a：The liquid of heat is encased in by inlet valve in crystallizing tank (10), when liquid reaches setting liquid level
When, the inlet valve and blow-off valve on crystallizing tank (10) are closed, crystallizing tank (10) forms a sealing container；
Step b：Start circulating pump (11) to pump to the cold water in sink (13) in condenser (14), the steaming in crystallizing tank (10)
Vapour is transported to by second pipe (17) in condenser (14), and the steam evaporated in condenser (14) condensation-crystallization tank (10) simultaneously coagulates
Form liquid water, the steam reduction in crystallizing tank (10) leads to pressure reduction, and the liquid in crystallizing tank (10) is under low pressure
Constantly boiling and evaporated vapor；
Step c：Start cooling tower (12), the liquid water that condenser (14) is formed is pipelined in cooling tower (12), cold
But conveying screw clamp (13) is interior after liquid water is carried out cooling processing by tower (12)；
Step d：Over time, liquid temperature hot in crystallizing tank (10) constantly reduces, when in crystallizing tank (10)
When liquid temperature is close to environment temperature, start air extractor (16), air extractor (16) extracts the steaming in crystallizing tank (10)
Vapour is simultaneously conveyed to condenser (14), and the pressure in crystallizing tank (10) persistently reduces so that the liquid substance constantly boiling in it is simultaneously
Evaporated vapor, the liquid continued down crystallization in crystallizing tank (10)；
Step e：When liquid temperature hot in crystallizing tank (10) drops to 5 DEG C~25 DEG C, stop air extractor (16), crystallizing tank
(10) liquid substance in terminates.
5. a kind of method for crystallising of liquid according to claim 4, it is characterised in that：Hot liquid object in step a
Matter temperature is at 40 DEG C~90 DEG C.
6. a kind of method for crystallising of liquid according to claim 4, it is characterised in that：Crystallizing tank (10) in step b
Interior liquid constantly boiling and evaporated vapor under the low pressure of 1kpa~70kpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810802976.9A CN108786169B (en) | 2018-07-20 | 2018-07-20 | Crystallization system and method for liquid substance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810802976.9A CN108786169B (en) | 2018-07-20 | 2018-07-20 | Crystallization system and method for liquid substance |
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| Publication Number | Publication Date |
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| CN108786169A true CN108786169A (en) | 2018-11-13 |
| CN108786169B CN108786169B (en) | 2020-11-27 |
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| CN201810802976.9A Active CN108786169B (en) | 2018-07-20 | 2018-07-20 | Crystallization system and method for liquid substance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870989A (en) * | 2020-07-23 | 2020-11-03 | 西格马(河南)高温科技集团有限公司 | Multi-layer vacuum cooling crystallization device for magnesium vapor |
| CN112156494A (en) * | 2020-10-14 | 2021-01-01 | 天津大学 | Evaporative crystallization system suitable for substances with flaky crystal habit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2308576B1 (en) * | 2009-09-25 | 2015-11-04 | Stefan Ebner | Vaporiser |
| CN106492499A (en) * | 2016-11-11 | 2017-03-15 | 江苏乐科节能科技股份有限公司 | A kind of constant gradient decrease temperature crystalline system and its method of work |
| CN206746029U (en) * | 2017-03-28 | 2017-12-15 | 中盐江西兰太化工有限公司 | A kind of salt chemical engineering vacuum crystallization device |
-
2018
- 2018-07-20 CN CN201810802976.9A patent/CN108786169B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2308576B1 (en) * | 2009-09-25 | 2015-11-04 | Stefan Ebner | Vaporiser |
| CN106492499A (en) * | 2016-11-11 | 2017-03-15 | 江苏乐科节能科技股份有限公司 | A kind of constant gradient decrease temperature crystalline system and its method of work |
| CN206746029U (en) * | 2017-03-28 | 2017-12-15 | 中盐江西兰太化工有限公司 | A kind of salt chemical engineering vacuum crystallization device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870989A (en) * | 2020-07-23 | 2020-11-03 | 西格马(河南)高温科技集团有限公司 | Multi-layer vacuum cooling crystallization device for magnesium vapor |
| CN112156494A (en) * | 2020-10-14 | 2021-01-01 | 天津大学 | Evaporative crystallization system suitable for substances with flaky crystal habit |
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| Publication number | Publication date |
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| CN108786169B (en) | 2020-11-27 |
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