CN117486293A - Water treatment system and working method thereof - Google Patents
Water treatment system and working method thereof Download PDFInfo
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- CN117486293A CN117486293A CN202311696680.0A CN202311696680A CN117486293A CN 117486293 A CN117486293 A CN 117486293A CN 202311696680 A CN202311696680 A CN 202311696680A CN 117486293 A CN117486293 A CN 117486293A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 90
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/041—Treatment of water, waste water, or sewage by heating by distillation or evaporation by means of vapour compression
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of wastewater separation, in particular to a water treatment system and a working method thereof. The invention provides a water treatment system, wherein a heat exchanger is communicated with a gas-liquid separator, and wastewater is suitable for circulating flow in the heat exchanger and the gas-liquid separator; the vapor compressor is fixed at one side of the gas-liquid separator, the air inlet end of the vapor compressor is communicated with the gas-liquid separator, and the air outlet end of the vapor compressor is communicated with the heat exchanger; the condensing water tank is fixed at one side of the heat exchanger and is suitable for storing condensed water; the vapor compression machine works and is suitable for forming negative pressure in the heat exchanger and the vapor-liquid separator so as to suck the wastewater; the heat exchanger heats the wastewater to evaporate, and the steam compressor is suitable for compressing 86 ℃ steam into 100 ℃ high-temperature steam; the high-temperature steam enters the heat exchanger to indirectly and secondarily heat the wastewater, and the wastewater is suitable for circulating flow from the gas-liquid separator into the heat exchanger.
Description
Technical Field
The invention relates to the technical field of wastewater separation, in particular to a water treatment system and a working method thereof.
Background
The waste water evaporator is based on the principle of evaporation concentration crystallization aiming at the characteristics of high salinity, high concentration, high COD and the like of chemical organic waste water. After separating the salt in the concentrated solution, recovering the salt by a salt collector, drying and recovering the concentrated solution or incinerating the concentrated solution, and treating the evaporated condensed water generally by subsequent biochemical treatment, so that the standard of wastewater discharge can be realized.
In the prior art, continuous heating and evaporation are required to be carried out on the wastewater, the heating efficiency is low, and meanwhile, the continuous heating energy consumption is high and the cost is high; it is therefore necessary to develop a water treatment system and a method of operating the same.
Disclosure of Invention
The invention aims to provide a water treatment system and a working method thereof.
In order to solve the above technical problems, the present invention provides a water treatment system, comprising:
the device comprises a heat exchanger, a gas-liquid separator, a vapor compressor and a condensate water tank, wherein the heat exchanger is communicated with the gas-liquid separator, and wastewater is suitable for circulating in the heat exchanger and the gas-liquid separator;
the steam compressor is fixed on one side of the gas-liquid separator, the air inlet end of the steam compressor is communicated with the gas-liquid separator, and the air outlet end of the steam compressor is communicated with the heat exchanger;
the condensed water tank is fixed at one side of the heat exchanger and is suitable for storing condensed water;
the vapor compression machine works and is suitable for forming negative pressure in the heat exchanger and the vapor-liquid separator so as to suck the wastewater;
the heat exchanger heats the wastewater to evaporate, and the steam compressor is suitable for compressing 86 ℃ steam into 100 ℃ high-temperature steam;
the high-temperature steam enters the heat exchanger to secondarily heat the wastewater, and the wastewater is suitable for circulating flow from the gas-liquid separator into the heat exchanger.
Preferably, the gas-liquid separator includes: the steam storage device comprises a storage tank, a separation assembly, a first water inlet pipe, a circulating water pipe and an air outlet pipe, wherein the storage tank is hollow, the separation assembly is fixed at the inner upper part of the storage tank, and the separation assembly is suitable for guiding steam to be discharged out of the storage tank;
the air outlet pipe is fixed at the upper part of the outer wall of the storage tank and is communicated with the steam compressor;
the first water inlet pipe is fixed at the lower end of the storage tank, and the other end of the first water inlet pipe is communicated with the lower part of the heat exchanger;
the circulating water pipe is fixed on the outer wall of the middle part of the storage tank, and the other end of the circulating water pipe is communicated with the upper part of the heat exchanger;
wherein, the steam in the heat exchanger is suitable for entering the storage tank through the circulating water pipe, the separation assembly is suitable for guiding steam to flow to the steam compressor through the gas outlet pipeline.
Preferably, the separation assembly comprises: the cone hopper, the guide pipe, the limiting ring, the isolation plate and the guide pipes are fixed at the lower end of the isolation plate, the isolation plate is horizontally fixed on the inner wall of the storage tank,
the guide pipe is fixed at the lower end of the cone hopper, and the lower end of the guide pipe is suitable for being inserted into the wastewater containing liquid;
the limiting ring is fixed at the lower end of the isolation plate and is arranged in the cone hopper;
the guide pipes are arranged at equal intervals on the outer wall of the cone hopper in a circumferential direction, and steam is suitable for flowing into the cone hopper through the guide pipes;
the partition plate is provided with a plurality of exhaust holes, and the exhaust holes are communicated with the air outlet pipe.
Preferably, the number of the vapor compressors is two, and the two vapor compressors are connected in parallel with each other.
Preferably, a defoaming silk screen device is fixed in the storage tank, and the defoaming silk screen device is suitable for removing foam in steam.
Preferably, the heat exchanger includes: the device comprises an inner sleeve, an outer sleeve, a baffle plate, a linkage piece and a descaling assembly, wherein the outer sleeve is sleeved on the outer wall of the inner sleeve, and a space is arranged between the outer wall of the inner sleeve and the inner wall of the outer sleeve;
the linkage piece is axially arranged along the inner sleeve, and the linkage piece is slidably arranged in the inner sleeve;
one end of the baffle plate is hinged to the inner wall of the inner sleeve, and the other end of the baffle plate is fixed to the side wall of the linkage piece;
the descaling assembly is arranged on the outer wall of the inner sleeve in a sliding manner, and is linked with the linkage piece;
when the linkage piece drives the baffle plate to move downwards, the baffle plate is suitable for overturning downwards by taking the hinge point as the axis, so that steam can be in contact with the descaling assembly.
Preferably, a first air hole and a second air hole are formed in the inner wall of the inner sleeve, the first air hole is formed above the second air hole, and the apertures of the first air hole and the second air hole are consistent;
a third air hole is formed in the linkage piece, and the aperture of the third air hole is consistent with that of the first air hole;
wherein, when the third air hole and the second air hole are communicated, steam is suitable for entering the descaling component.
Preferably, the descaling assembly includes: the lower sliding plate is arranged on the inner wall of the outer sleeve in a sliding manner, and the inner wall of the lower sliding plate is in sliding sealing with the outer wall of the inner sleeve;
the upper sliding plate is fixed on the outer wall of the linkage piece;
a storage tank is arranged in the upper sliding plate, and the storage tank is suitable for storing solid descaling crystals;
the crushing piece is arranged in the storage tank in a sliding manner;
the lower end of the connecting plate is fixed on the lower sliding plate, and the upper end of the connecting plate is fixed on the crushing piece;
the linkage piece moves downwards, and when the second air hole and the third air hole are communicated, steam is suitable for contacting with the connecting plate;
the linkage member pushes the upper sliding plate to synchronously slide downwards, and the crushing member is suitable for extruding descaling crystals in the crushing storage tank.
Preferably, the storage tank is tapered, and an opening of the storage tank faces the lower slide plate.
Preferably, a positioning groove is formed in the inner wall of the outer sleeve along the axial direction, a compression spring is fixed in the positioning groove, and the upper end of the compression spring is fixed on the lower sliding plate.
Preferably, the baffle plate is provided with a plurality of positioning holes, and the aperture of each positioning hole is larger than the outer diameter of the heat exchange tube;
the outer wall of the heat exchange tube is sleeved with a flexible piece, and the flexible piece is fixed in the positioning hole.
In another aspect, the present invention also provides a method of operating a water treatment system, comprising the steps of:
the system is started, the steam compressor is started, negative pressure is formed in the heat exchanger and the gas-liquid separator, and wastewater is sucked into the heat exchanger and the gas-liquid separator from bottom to top until the wastewater reaches a set liquid level;
the steam generator at the bottom of the heat exchanger is started to heat the wastewater in the heat exchanger, after the temperature of the wastewater is increased to evaporate, the system enters an evaporation mode, and the steam generator is automatically closed;
after 86 ℃ steam enters the steam compressor through the air outlet pipe, the steam compressor is suitable for compressing the steam into 100 ℃ high-temperature steam, and the high-temperature steam is suitable for entering the heat exchanger through the distributor;
under the heating condition, the density of the solution in the heat exchanger is inconsistent with that of the solution in the gas-liquid separator, and under the action of steam, the wastewater is suitable for flowing into the heat exchanger from the circulating water pipe, the wastewater in the heat exchanger is suitable for flowing into the gas-liquid separator through the first water inlet pipe, and the wastewater is suitable for circulating in the heat exchanger and the gas-liquid separator;
the high-temperature steam entering the heat exchanger exchanges heat with the tube side wastewater, and then a large amount of condensed water is generated on the shell side of the heat exchanger, and a large amount of latent heat is released, and the latent heat is absorbed by the tube side wastewater to boil so as to generate a large amount of secondary steam;
the condensed water is continuously discharged into the condensed water tank.
The water treatment system has the beneficial effects that the effect of circulating flow of wastewater in the heat exchanger and the gas-liquid separator is realized through the cooperation of the vapor compressor, the heat exchanger and the gas-liquid separator, and meanwhile, the vapor compressor can compress vapor to form high-temperature vapor, so that the utilization efficiency of equipment on a heat source is provided; the scale removal component in the heat exchanger can remove dirt and impurities on the baffle plate.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a preferred embodiment of a water treatment system of the present invention;
FIG. 2 is a perspective view of the heat exchanger and vapor compressor of the present invention;
FIG. 3 is a perspective view of a heat exchanger and a gas-liquid separator of the present invention;
FIG. 4 is a perspective view of a gas-liquid separator of the present invention;
FIG. 5 is an internal perspective view of the gas-liquid separator of the present invention;
FIG. 6 is a perspective view of a separation assembly of the present invention;
FIG. 7 is an internal perspective view of the heat exchanger of the present invention;
FIG. 8 is a perspective view of a baffle and scale removal assembly of the present invention;
FIG. 9 is a perspective view of the descaling assembly of the present invention.
In the figure:
1. a heat exchanger; 10. an air inlet pipe;
11. an inner sleeve; 110. a first air hole; 111. a second air hole;
12. an outer sleeve; 120. a positioning groove; 121. a compression spring;
13. a baffle plate;
14. a linkage member; 140. a third air hole;
15. a descaling assembly; 151. a lower slide plate; 152. an upper slide plate; 153. a connecting plate; 154. a crushing member; 155. a storage tank;
16. a heat exchange tube;
17. a steam generator;
18. a partition plate;
2. a gas-liquid separator; 21. a storage tank; 22. a separation assembly; 221. a cone bucket; 222. a flow guiding pipe; 223. a limiting ring; 224. a partition plate; 225. a guide tube; 226. an exhaust hole;
23. a first water inlet pipe; 24. a circulating water pipe; 25. an air outlet pipe;
3. a vapor compressor; 4. a condensate tank.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In a first embodiment, as shown in fig. 1 to 9, the present invention provides a water treatment system comprising: the device comprises a heat exchanger 1, a gas-liquid separator 2, a vapor compressor 3 and a condensate water tank 4, wherein the heat exchanger 1 is communicated with the gas-liquid separator 2, and wastewater is suitable for circulating in the heat exchanger 1 and the gas-liquid separator 2; the waste water is suitable for entering the heat exchanger 1 from the bottom of the heat exchanger 1; the bottom of the heat exchanger 1 is also provided with a discharge pipe; the vapor compressor 3 is fixed on one side of the gas-liquid separator 2, the air inlet end of the vapor compressor 3 is communicated with the gas-liquid separator 2, and the air outlet end of the vapor compressor 3 is communicated with the heat exchanger 1; after the wastewater in the gas-liquid separator 2 is evaporated, 86 ℃ steam enters the steam compressor 3 through the air outlet pipe 25, the steam compressor 3 is suitable for compressing the steam into 100 ℃ high-temperature steam, and the high-temperature steam is suitable for entering the heat exchanger 1 through the distributor; to secondarily heat the wastewater in the heat exchanger 1, thereby generating a large amount of secondary steam; the condensing water tank 4 is fixed on one side of the heat exchanger 1, the condensing water tank 4 is communicated with the heat exchanger 1, and the condensing water tank 4 is suitable for storing condensed water; after heat exchange is carried out on the high-temperature steam entering the heat exchanger 1 and the tube side wastewater, a large amount of condensed water is generated on the shell side of the heat exchanger 1, and a large amount of latent heat is released, and the latent heat is absorbed by the tube side wastewater to be boiled, so that a large amount of secondary steam is generated; the condensed water is continuously discharged into the condensed water tank 4. The water inlet pipe at the bottom of the heat exchanger 1 is controlled by monitoring the flow rate of the condensed water entering the condensed water tank 4 so that the amount of wastewater entering the heat exchanger 1 through the water inlet pipe is not greater than the outflow amount of the condensed water. Wherein the vapor compressor 3 works and is suitable for forming negative pressure in the heat exchanger 1 and the gas-liquid separator 2 so as to suck the wastewater; the heat exchanger 1 heats the wastewater to evaporation, and the steam compressor 3 is adapted to compress 86 ℃ steam into 100 ℃ high temperature steam; the high-temperature steam enters the heat exchanger 1 to secondarily heat the wastewater, and the wastewater is suitable for circulating flow from the gas-liquid separator 2 into the heat exchanger 1. Under heating conditions, the solution in the heat exchanger 1 and the solution in the gas-liquid separator 2 are inconsistent in density, and under the action of steam, wastewater is suitable for flowing into the heat exchanger 1 from the circulating water pipe 24, the wastewater in the heat exchanger 1 is suitable for flowing into the gas-liquid separator 2 through the first water inlet pipe 23, and the wastewater is suitable for circulating in the heat exchanger 1 and the gas-liquid separator 2. The evaporation speed of the wastewater is quickened, and the thermal efficiency is improved. The wastewater circularly flows from top to bottom, and because the concentration of the solution is inconsistent, the steam is used as a working medium, the density is small, the volume is large, and the enthalpy value is high, so that the solution is pushed to move downwards, and finally the system circulation is completed.
Referring to fig. 2 and 3, the gas-liquid separator 2 includes: a storage tank 21, a separation assembly 22, a first water inlet pipe 23, a circulating water pipe 24 and an air outlet pipe 25, wherein the storage tank 21 is hollow, the separation assembly 22 is fixed at the inner upper part of the storage tank 21, and the separation assembly 22 is suitable for guiding steam to be discharged out of the storage tank 21; after the evaporation of the waste water, the water vapor generated by the evaporation is guided by the separation assembly 22 to be discharged out of the storage tank 21. The air outlet pipe 25 is fixed on the upper part of the outer wall of the storage tank 21, and after the water vapor enters the upper part of the inner wall of the storage tank 21 through the air outlet hole 226, the air outlet pipe 25 is suitable for guiding the water vapor to flow towards the vapor compressor 3, and the air outlet pipe 25 is communicated with the vapor compressor 3; the steam compressor 3 is suitable for compressing steam, 86 ℃ steam enters the steam compressor 3 through the air outlet pipe 25, the steam compressor 3 is suitable for compressing the steam into 100 ℃ high-temperature steam, and the high-temperature steam is suitable for entering the heat exchanger 1 through the distributor so as to secondarily heat the wastewater in the heat exchanger 1, and the evaporation efficiency of the wastewater is accelerated. The first water inlet pipe 23 is fixed at the lower end of the storage tank 21, and the other end of the first water inlet pipe 23 is communicated with the lower part of the heat exchanger 1; when the wastewater enters the heat exchanger 1, the water level in the heat exchanger 1 and the water level in the gas-liquid separator 2 are kept to be the same in height through the first water inlet pipe 23 until the water level exceeds the circulating water pipe 24, and at the moment, the continuous conveying of the wastewater into the heat exchanger 1 is stopped. The circulating water pipe 24 is fixed on the outer wall of the middle part of the storage tank 21, and the other end of the circulating water pipe 24 is communicated with the upper part of the heat exchanger 1; wherein the steam in the heat exchanger 1 is adapted to enter the storage tank 21 through the circulating water pipe 24, and the separation assembly 22 is adapted to guide the steam to flow to the steam compressor 3 through the air outlet pipe 25. After 86 ℃ steam enters the steam compressor 3 through the air outlet pipe 25, the steam compressor 3 is suitable for compressing the steam into 100 ℃ high-temperature steam, and the high-temperature steam is suitable for entering the heat exchanger 1 through the distributor; under heating conditions, the solution in the heat exchanger 1 and the solution in the gas-liquid separator 2 are inconsistent in density, and under the action of steam, wastewater is suitable for flowing into the heat exchanger 1 from the circulating water pipe 24, the wastewater in the heat exchanger 1 is suitable for flowing into the gas-liquid separator 2 through the first water inlet pipe 23, and the wastewater is suitable for circulating in the heat exchanger 1 and the gas-liquid separator 2.
Referring to fig. 4 and 5, the separation assembly 22 includes: the cone hopper 221, the guide pipe 222, the limiting ring 223, the isolating plate 224 and the guide pipes 225, wherein the cone hopper 221 is fixed at the lower end of the isolating plate 224, the isolating plate 224 is horizontally fixed on the inner wall of the storage tank 21, and the isolating plate 224 is suitable for blocking water vapor and wastewater from being discharged out of the storage tank through the air outlet pipe 25; the guide pipe 222 is fixed at the lower end of the cone 221, and the lower end of the guide pipe 222 is suitable for being inserted into the wastewater containing liquid; the limiting ring 223 is fixed at the lower end of the isolation plate 224, and the limiting ring 223 is arranged in the cone 221; the guide pipes 225 are arranged circumferentially around the outer wall of the cone 221 at equal intervals, and steam is suitable for flowing into the cone 221 through the guide pipes 225; the isolating plate 224 is provided with a plurality of exhaust holes 226, and the exhaust holes 226 are communicated with the air outlet pipe 25. After entering the cone 221 through the guide pipe 225, the water vapor is blocked by the limiting ring 223 and flows downwards, the excessive water in the water vapor is suitable for flowing back to the waste water in the storage tank 21 through the guide pipe 222, and the rest water vapor is suitable for flowing upwards and enters the air outlet pipe 25 through the exhaust hole 226.
Referring to fig. 2, in order to improve heat exchange efficiency, the number of the vapor compressors 3 of the present invention is two, and the two vapor compressors 3 are connected in parallel with each other. The steam compressor 3 can compress 86 ℃ steam discharged from the storage tank 21 into 100 ℃ high-temperature steam, the high-temperature steam can enter the heat exchanger 1 again, and the waste water in the heat exchanger 1 is heated for the second time, so that the waste water is evaporated for the second time, the heat efficiency is improved, and meanwhile, the evaporation efficiency is improved.
A defoaming screen device is fixed in the storage tank 21, and is suitable for removing foam in steam. The defoaming silk screen device is arranged on the inner wall of the air outlet pipe 25 and is close to the storage tank 21.
Referring to fig. 8, the heat exchanger 1 includes: the device comprises an inner sleeve 11, an outer sleeve 12, a baffle 13, a linkage piece 14 and a descaling assembly 15, wherein the outer sleeve 12 is sleeved on the outer wall of the inner sleeve 11, and a space is arranged between the outer wall of the inner sleeve 11 and the inner wall of the outer sleeve 12; an air inlet pipe 10 is arranged on the outer wall of the heat exchanger 1, and the air inlet pipe 10 is communicated with the air outlet end of the vapor compressor 3;
the linkage 14 is axially arranged along the inner sleeve 11, and the linkage 14 is slidably arranged in the inner sleeve 11; a driving piece is fixed at the lower end of the outer sleeve 12, the linkage piece 14 is fixed at the movable end of the driving piece, and the driving piece is suitable for driving the linkage piece 14 to vertically move up and down; one end of the baffle plate 13 is hinged to the inner wall of the inner sleeve 11, and the other end of the baffle plate 13 is fixed to the side wall of the linkage piece 14; the number of the baffle plates 13 is multiple, and the baffle plates 13 are arranged in a staggered manner; the descaling assembly 15 is slidably arranged on the outer wall of the inner sleeve 11, and the descaling assembly 15 is linked with the linkage 14; wherein the linkage 14 drives the baffle 13 to move downwards, the baffle 13 is suitable for turning downwards around the hinge point as the axis so that the steam can contact the descaling assembly 15. The linkage 14 drives the baffle 13 to form a spiral in the inner sleeve 11, and the steam compressor 3 is suitable for conveying high-temperature steam into the inner sleeve 11; after being limited and blocked by the baffle 13, the high-temperature steam is suitable for spiral flow in the inner sleeve 11, and the contact area between the high-temperature steam and the heat exchange tube 16 is increased.
Referring to fig. 9, a first air hole 110 and a second air hole 111 are formed in the inner wall of the inner sleeve 11, the first air hole 110 is disposed above the second air hole 111, and the apertures of the first air hole 110 and the second air hole 111 are consistent; a third air hole 140 is formed on the linkage member 14, and the aperture of the third air hole 140 is consistent with that of the first air hole 110; wherein the linkage member 14 drives the baffle plate 13 to turn downwards with the hinge point as the axis, and when the third air hole 140 and the second air hole 111 are communicated, steam is suitable for entering between the inner sleeve 11 and the outer sleeve 12, and steam is suitable for entering the descaling assembly 15. After the steam and the descaling crystallization, a descaling solution is formed, and the descaling solution stays between the lower sliding plate 151 and the outer wall of the inner sleeve 11. When the linkage member 14 drives the baffle plate 13 to move upwards, the third air holes 140 are communicated with the first air holes 110, the descaling solution is suitable for flowing onto the baffle plate 13 through the first air holes 110, and the descaling solution is suitable for cleaning and removing dirt on the baffle plate 13, so that the heat exchange efficiency is prevented from being influenced by dirt accumulation.
Further, the descaling assembly 15 includes: the lower sliding plate 151, the connecting plate 153, the upper sliding plate 152 and the crushing piece 154, wherein the lower sliding plate 151 is arranged on the inner wall of the outer sleeve 12 in a sliding manner, and the inner wall of the lower sliding plate 151 is in sliding sealing with the outer wall of the inner sleeve 11; the lower slide 151 is adapted to carry a descaling solution to prevent the descaling solution from dripping down. The upper slide plate 152 is fixed on the outer wall of the linkage 14; when the I linkage plate moves vertically up and down, the I linkage plate is suitable for driving the upper sliding plate 152 to synchronously move up and down; a storage tank 155 is provided in the upper sliding plate 152, and the storage tank 155 is adapted to store solid scale removal crystals; the storage groove 155 is tapered, and an opening of the storage groove 155 faces the lower slider 151. The crushing member 154 is slidably disposed within the reservoir 155; the lower end of the connecting plate 153 is fixed on the lower sliding plate 151, and the upper end of the connecting plate 153 is fixed on the crushing member 154; when the linkage member 14 moves upwards, the upper sliding plate 152 is adapted to be driven to move upwards synchronously, and the upper sliding plate 152 can drive the crushing member 154 and the connecting plate 153 to move upwards synchronously; when the linkage member 14 moves downwards, the upper sliding plate 152 moves downwards synchronously, at this time, the connecting plate 153 and the crushing member 154 keep relatively static, and as the lower sliding plate 151 moves downwards gradually, the crushing member 154 is suitable for extruding the solid descaling crystals in the crushing storage tank 155, the crushed solid descaling crystals are suitable for falling on the lower sliding plate 151, and after the steam contacts with the connecting plate 153 through the third air hole 140, the high-temperature steam is precooled and condensed, and the condensed water is mixed with the powdery descaling crystals to form a descaling solution; wherein, the linkage 14 moves downwards, and the steam is suitable for contacting the connecting plate 153 when the second air hole 111 and the third air hole 140 are communicated; the linkage 14 pushes the upper slide plate 152 to simultaneously slide downward, and the crushing member 154 is adapted to press the scale-removed crystals in the crushing reservoir 155.
In order to push the descaling solution to flow to the baffle plate 13, a positioning groove 120 is axially formed in the inner wall of the outer sleeve 12, a compression spring 121 is fixed in the positioning groove 120, and the upper end of the compression spring 121 is fixed on the lower sliding plate 151. The linkage piece 14 drives the baffle plate 13 to move upwards, when the first air hole 110 is communicated with the third air hole 140, the upper sliding plate 152 synchronously drives the lower sliding plate 151 to move upwards through the connecting plate 153, and the descaling solution on the upper sliding plate 152 is suitable for flowing to the upper end of the baffle plate 13 through the first air hole 110, and the descaling solution is suitable for removing dirt on the baffle plate 13;
in order to realize the turnover of the baffle plate, a plurality of positioning holes are formed in the baffle plate 13, and the aperture of each positioning hole is larger than the outer diameter of the heat exchange tube 16; the outer wall of the heat exchange tube 16 is sleeved with a flexible piece, and the flexible piece is fixed in the positioning hole. When the baffle plate 13 turns downwards or upwards with the hinge point as the axis, the heat exchange tube 16 keeps still, and the flexible piece plays a role in sealing the gap between the outer wall of the heat exchange tube 16 and the positioning hole, so that steam is prevented from directly flowing downwards through the gap between the positioning hole and the heat exchange tube 16. The baffle 13 turns downwards, so that high-temperature steam can flow downwards in a spiral shape after entering the inner sleeve 11, and the direct contact area between the high-temperature steam and the heat exchange tube 16 is improved.
Two isolation plates 18 are fixed in the inner sleeve 11, a plurality of heat exchange tubes 16 are fixed between the two isolation plates 18 in a matrix mode, and the isolation plates 18 can prevent high-temperature steam from directly contacting with wastewater; a plurality of baffle plates 13 are arranged between two isolation plates 18 at equal intervals; after the wastewater enters the inner sleeve 11, the wastewater flows upwards through the heat exchange pipes 16, and after the wastewater flows to the upper part of the uppermost one of the isolation plates 18, the wastewater is communicated with the storage tank 21 through the circulating water pipe 24, so that the circulating flow of the wastewater between the storage tank 21 and the inner sleeve 11 is realized; after entering the inner sleeve through the air inlet pipe 10, the high-temperature steam contacts with the outer wall of the heat exchange pipe 16 to realize heat exchange of wastewater; and after the high-temperature vapor encounters the outer wall of the heat exchange tube 16, the heat is dissipated and condensed water is generated, and finally the condensed water is discharged into the condensed water tank 4.
An embodiment two, the present embodiment also provides a working method of a water treatment system based on the embodiment one, including a water treatment system as described in the embodiment one, the specific structure is the same as that of the embodiment one, and the working method of a specific water treatment system is as follows:
the system is started, the steam compressor 3 is started, negative pressure is formed in the heat exchanger 1 and the gas-liquid separator 2, and wastewater is sucked into the heat exchanger 1 and the gas-liquid separator 2 from bottom to top until the wastewater reaches a set liquid level;
the steam generator 17 at the bottom of the heat exchanger 1 is started to heat the wastewater in the heat exchanger 1, after the temperature of the wastewater is increased to be evaporated, the system enters an evaporation mode, and the steam generator 17 is automatically closed;
after 86 ℃ steam enters the steam compressor 3 through the air outlet pipe 25, the steam compressor 3 is suitable for compressing the steam into 100 ℃ high-temperature steam, and the high-temperature steam is suitable for entering the heat exchanger 1 through the distributor;
under the heating condition, the solution in the heat exchanger 1 and the gas-liquid separator 2 is inconsistent in density, and the wastewater circularly flows from top to bottom under the action of steam, because of inconsistent concentration of the solution, the steam is used as a working medium, the density is small, the volume is large, the enthalpy value is high, the steam in the inner sleeve 11 is suitable for pushing the wastewater to move downwards, the wastewater is suitable for flowing into the storage tank 21 from the inner sleeve 11 through the first water inlet pipe 23, and the wastewater in the storage tank 21 is suitable for flowing into the inner sleeve 11 through the circulating water pipe 24, so that the system circulation is finally completed. The waste water is suitable for flowing into the heat exchanger 1 from the circulating water pipe 24, the waste water in the heat exchanger 1 is suitable for flowing into the gas-liquid separator 2 through the first water inlet pipe 23, and the waste water is suitable for circulating in the heat exchanger 1 and the gas-liquid separator 2;
the high-temperature steam entering the heat exchanger 1 exchanges heat with the wastewater in the heat exchange tube 16, and then a large amount of condensed water is generated on the outer wall of the heat exchange tube, and a large amount of latent heat is released, and the latent heat is absorbed by the wastewater in the heat exchange tube 16 to boil, so that a large amount of secondary steam is generated; the condensed water is continuously discharged into the condensed water tank 4.
The components (components not illustrating specific structures) selected in the application are all common standard components or components known to those skilled in the art, and the structures and principles of the components are all known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software programs referred to in the present application are all prior art, and the present application does not relate to any improvement of the software programs.
In the description of embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims. .
Claims (12)
1. A water treatment system, comprising:
the device comprises a heat exchanger (1), a gas-liquid separator (2), a vapor compressor (3) and a condensate water tank (4), wherein the heat exchanger (1) is communicated with the gas-liquid separator (2), and wastewater is suitable for circulating flow in the heat exchanger (1) and the gas-liquid separator (2);
the steam compressor (3) is fixed on one side of the gas-liquid separator (2), the air inlet end of the steam compressor (3) is communicated with the gas-liquid separator (2), and the air outlet end of the steam compressor (3) is communicated with the heat exchanger (1);
the condensing water tank (4) is fixed at one side of the heat exchanger (1), and the condensing water tank (4) is suitable for storing condensed water;
wherein the steam compressor (3) works and is suitable for forming negative pressure in the heat exchanger (1) and the gas-liquid separator (2) so as to suck the wastewater;
the heat exchanger (1) heats the wastewater to evaporate, and the steam compressor (3) is suitable for compressing 86 ℃ steam into 100 ℃ high-temperature steam;
the high-temperature steam enters the heat exchanger (1) to secondarily heat the wastewater, and the wastewater is suitable for circulating flow from the gas-liquid separator (2) into the heat exchanger (1).
2. A water treatment system as claimed in claim 1, wherein:
the gas-liquid separator (2) comprises: the steam storage device comprises a storage tank (21), a separation assembly (22), a first water inlet pipe (23), a circulating water pipe (24) and an air outlet pipe (25), wherein the storage tank (21) is hollow, the separation assembly (22) is fixed at the inner upper part of the storage tank (21), and the separation assembly (22) is suitable for guiding steam to be discharged out of the storage tank (21);
the air outlet pipe (25) is fixed at the upper part of the outer wall of the storage tank (21), and the air outlet pipe (25) is communicated with the steam compressor (3);
the first water inlet pipe (23) is fixed at the lower end of the storage tank (21), and the other end of the first water inlet pipe (23) is communicated with the lower part of the heat exchanger (1);
the circulating water pipe (24) is fixed on the outer wall of the middle part of the storage tank, and the other end of the circulating water pipe (24) is communicated with the upper part of the heat exchanger (1);
wherein, the steam in the heat exchanger (1) is suitable for entering the storage tank through a circulating water pipe (24), and the separation assembly (22) is suitable for guiding the steam to flow to the steam compressor (3) through an air outlet pipe (25).
3. A water treatment system as claimed in claim 2, wherein:
the separation assembly (22) includes: the cone hopper (221), the guide pipe (222), the limiting ring (223), the isolating plate (224) and the guide pipes (225), wherein the cone hopper (221) is fixed at the lower end of the isolating plate (224), the isolating plate (224) is horizontally fixed on the inner wall of the storage tank (21),
the guide pipe (222) is fixed at the lower end of the cone hopper (221), and the lower end of the guide pipe (222) is suitable for being inserted into the wastewater containing liquid;
the limiting ring (223) is fixed at the lower end of the isolation plate (224), and the limiting ring (223) is arranged in the cone bucket (221);
the guide pipes (225) are arranged at equal intervals around the outer wall of the cone hopper (221), and steam is suitable for flowing into the cone hopper (221) through the guide pipes (225);
a plurality of exhaust holes (226) are formed in the isolation plate (224), and the exhaust holes (226) are communicated with the air outlet pipe (25).
4. A water treatment system as claimed in claim 3, wherein:
the number of the steam compressors (3) is two, and the two steam compressors (3) are mutually connected in parallel.
5. A water treatment system as claimed in claim 4, wherein:
a defoaming silk screen device is fixed in the storage tank (21), and the defoaming silk screen device is suitable for removing foam in steam.
6. A water treatment system as claimed in claim 5, wherein:
the heat exchanger (1) comprises: the device comprises an inner sleeve (11), an outer sleeve (12), a baffle plate (13), a linkage piece (14) and a descaling assembly (15), wherein the outer sleeve (12) is sleeved on the outer wall of the inner sleeve (11), and a space is arranged between the outer wall of the inner sleeve (11) and the inner wall of the outer sleeve (12);
the linkage piece (14) is axially arranged along the inner sleeve (11), and the linkage piece (14) is slidably arranged in the inner sleeve (11);
one end of the baffle plate (13) is hinged to the inner wall of the inner sleeve (11), and the other end of the baffle plate (13) is fixed to the side wall of the linkage piece (14);
the descaling assembly (15) is arranged on the outer wall of the inner sleeve (11) in a sliding manner, and the descaling assembly (15) is linked with the linkage piece (14);
wherein, when the linkage piece (14) drives the baffle plate (13) to move downwards, the baffle plate (13) is suitable for downwards overturning by taking a hinge point as an axis so as to enable steam to be in contact with the descaling assembly (15).
7. A water treatment system as defined in claim 6, wherein:
a first air hole (110) and a second air hole (111) are formed in the inner wall of the inner sleeve (11), the first air hole (110) is arranged above the second air hole (111), and the apertures of the first air hole (110) and the second air hole (111) are consistent;
a third air hole (140) is formed in the linkage piece (14), and the aperture of the third air hole (140) is consistent with that of the first air hole (110);
wherein, when the third air hole (140) is communicated with the second air hole (111), steam is suitable for entering the descaling assembly (15).
8. A water treatment system as claimed in claim 7, wherein:
the descaling assembly (15) comprises: the device comprises a lower sliding plate (151), a connecting plate (153), an upper sliding plate (152) and a crushing piece (154), wherein the lower sliding plate (151) is arranged on the inner wall of the outer sleeve (12) in a sliding manner, and the inner wall of the lower sliding plate (151) is in sliding sealing with the outer wall of the inner sleeve (11);
the upper sliding plate (152) is fixed on the outer wall of the linkage piece (14);
a storage tank (155) is arranged in the upper sliding plate (152), and the storage tank (155) is suitable for storing solid descaling crystals;
the crushing member (154) is slidably disposed within the storage tank (155);
the lower end of the connecting plate (153) is fixed on the lower sliding plate (151), and the upper end of the connecting plate (153) is fixed on the crushing piece (154);
wherein the linkage (14) moves downwards, and when the second air hole (111) and the third air hole (140) are communicated, steam is suitable for contacting with the connecting plate (153);
the linkage (14) pushes the upper slide plate (152) to synchronously slide downwards, and the crushing piece (154) is suitable for extruding descaling crystals in the crushing storage tank (155).
9. A water treatment system as claimed in claim 8, wherein:
the storage tank (155) is tapered, and an opening of the storage tank (155) faces the lower slide plate (151).
10. A water treatment system as claimed in claim 9, wherein:
the inner wall of the outer sleeve (12) is provided with a positioning groove (120) along the axial direction, a compression spring (121) is fixed in the positioning groove (120), and the upper end of the compression spring (121) is fixed on the lower sliding plate (151).
11. A water treatment system as claimed in claim 10, wherein:
a plurality of positioning holes are formed in the baffle plate (13), and the aperture of each positioning hole is larger than the outer diameter of the heat exchange tube (16);
the outer wall of the heat exchange tube (16) is sleeved with a flexible piece, and the flexible piece is fixed in the positioning hole.
12. A method of operating a water treatment system according to any one of claims 1 to 11, comprising the steps of:
the system is started, the steam compressor (3) is started, negative pressure is formed in the heat exchanger (1) and the gas-liquid separator (2), and wastewater is sucked into the heat exchanger (1) and the gas-liquid separator (2) from bottom to top until the wastewater reaches a set liquid level;
a steam generator (17) positioned at the bottom of the heat exchanger (1) is started to heat the wastewater in the heat exchanger (1), after the temperature of the wastewater is increased to be evaporated, the system enters an evaporation mode, and the steam generator (17) is automatically closed;
after 86 ℃ steam enters the steam compressor (3) through the air outlet pipe (25), the steam compressor (3) is suitable for compressing the steam into 100 ℃ high-temperature steam, and the high-temperature steam is suitable for entering the heat exchanger (1) through the distributor;
under the heating condition, the density of the solution in the heat exchanger (1) is inconsistent with that of the solution in the gas-liquid separator (2), and under the action of steam, wastewater is suitable for flowing into the heat exchanger (1) from the circulating water pipe (24), the wastewater in the heat exchanger (1) is suitable for flowing into the gas-liquid separator (2) through the first water inlet pipe (23), and the wastewater is suitable for circulating in the heat exchanger (1) and the gas-liquid separator (2);
the high-temperature steam entering the heat exchanger (1) exchanges heat with the tube side wastewater, and then a large amount of condensed water is generated on the shell side of the heat exchanger (1), and meanwhile, a large amount of latent heat is released, and the latent heat is boiled by the heat absorption of the tube side wastewater to generate a large amount of secondary steam;
the condensed water is continuously discharged into a condensed water tank (4).
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