CN220334848U - Multi-effect flash evaporation steam cooling device for desulfurization wastewater - Google Patents
Multi-effect flash evaporation steam cooling device for desulfurization wastewater Download PDFInfo
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- CN220334848U CN220334848U CN202321832554.9U CN202321832554U CN220334848U CN 220334848 U CN220334848 U CN 220334848U CN 202321832554 U CN202321832554 U CN 202321832554U CN 220334848 U CN220334848 U CN 220334848U
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- 238000001816 cooling Methods 0.000 title claims abstract description 99
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 25
- 230000023556 desulfurization Effects 0.000 title claims abstract description 25
- 239000002351 wastewater Substances 0.000 title claims abstract description 25
- 238000001704 evaporation Methods 0.000 title claims abstract description 23
- 230000008020 evaporation Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000000498 cooling water Substances 0.000 abstract description 12
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a multi-effect flash evaporation steam cooling device for desulfurization wastewater, which comprises a cooling assembly, wherein the cooling assembly comprises a cooling box, a drain pipe, an electromagnetic valve, a water return pipe, a circulating pump, a cooling box, a low-pressure condensate pipe, a disc-shaped heat exchange pipe, a liquid level meter, a flow equalizing plate, a secondary steam pipe, a spray pipe and a return-shaped heat exchange pipe; the low-pressure condensation water pipes are fixedly connected to the inner side wall of the cooling box at equal intervals. The utility model can exchange heat and cool the secondary steam and condensed water by spraying cooling water through the spray pipe and low-temperature liquefied gas in the disc-shaped heat exchange pipe, thereby avoiding white pollution caused by secondary steam discharge, guiding the secondary steam through the flow equalizing plate, exchanging heat and cooling the cooling water through the loop-shaped heat exchange pipe, realizing the recycling of the cooling water, saving water source, and controlling the liquid level height in the cooling box through the cooperation of the liquid level meter and the electromagnetic valve.
Description
Technical field:
the utility model relates to a cooling device, in particular to a multi-effect flash evaporation steam cooling device for desulfurization wastewater, and belongs to the technical field of water treatment devices.
The background technology is as follows:
the desulfurization wastewater is mainly the water discharged from an absorption tower in the wet desulfurization process of boiler flue gas. The impurities contained in the wastewater mainly comprise suspended matters, supersaturated sulfite, sulfate and heavy metals, and many of the impurities are first pollutants strictly controlled in national environmental standards. The multi-stage flash evaporation is a short term of a multi-stage flash distillation method, which is not only used for sea water desalination, but also widely used for treatment and recovery of boiler water supply, industrial wastewater and desulfurization wastewater of thermal power plants and petrochemical plants, and recovery of waste lye in the dyeing industry and the paper industry.
In the existing multi-effect flash evaporation technology, high-temperature and high-pressure condensed water can generate secondary steam in flash evaporation, the secondary steam can generate white steam around when being discharged from an emptying pipe, white pollution is caused, in addition, the steam condensed water is often required to be cooled to below 40 ℃ to be discharged to a sewer pipe network due to overhigh water temperature, and the conventional steam condensed water cooling mode adopts low-temperature tap water to be cooled to an allowable temperature and then is discharged, so that a large amount of water resources can be wasted.
The utility model comprises the following steps:
the utility model aims to provide a multi-effect flash evaporation steam cooling device for desulfurization wastewater, which aims to solve one of the problems in the background technology.
The utility model is implemented by the following technical scheme: the multi-effect flash evaporation steam cooling device for the desulfurization wastewater comprises a cooling assembly, wherein the cooling assembly comprises a cooling box, a drain pipe, an electromagnetic valve, a water return pipe, a circulating pump, a cooling box, a low-pressure condensate pipe, a disc-shaped heat exchange pipe, a liquid level meter, a flow equalizing plate, a secondary steam pipe, a spray pipe and a return-shaped heat exchange pipe;
the utility model discloses a cooling box, including cooling box, low pressure condenser pipe, secondary steam pipe equidistance fixed connection in the inside wall of cooling box, flow equalizing plate fixed connection in the inside wall bottom of cooling box, disk heat exchange tube installs in the inside of cooling box, the level gauge is installed in inner wall one side of cooling box, the shower equidistance is installed in the interior roof of cooling box, the heat exchange tube that returns shape installs in the inside of cooling box, the one end and the delivery port intercommunication of circulating pump of wet return, the one end and the wet return fixed connection and the intercommunication of drain pipe, the solenoid valve is installed in the lateral wall of wet return.
As a further preferred aspect of the present utility model: the water outlet of the cooling box is communicated with the water inlet of the circulating pump through a connecting pipe, and the water inlet of the cooling box is communicated with the water outlet of the cooling box through a connecting pipe.
As a further preferred aspect of the present utility model: the disc-shaped heat exchange tube is positioned between the flow equalizing plate and the low-pressure condensate pipe, and one end of the return pipe, which is far away from the circulating pump, is communicated with the spray pipe.
As a further preferred aspect of the present utility model: through holes are formed in the outer side walls of the low-pressure condensate pipe and the secondary steam pipe, and a controller is mounted on the front surface of the cooling box.
As a further preferred aspect of the present utility model: both ends of the disc-shaped heat exchange tube are positioned outside the cooling box, and both ends of the loop-shaped heat exchange tube are positioned outside the cooling box.
As a further preferred aspect of the present utility model: the flash evaporation assembly is arranged outside the cooling box and comprises a high-pressure condensate pipe, a flash evaporation tank, a steam conveying pipe and a condensate conveying pipe;
one end of the high-pressure condensate pipe is fixedly connected and communicated with the liquid inlet of the flash tank.
As a further preferred aspect of the present utility model: one end of the steam conveying pipe is communicated with a steam outlet of the flash tank, and the other end of the steam conveying pipe is communicated with the secondary steam pipe.
As a further preferred aspect of the present utility model: one end of the condensed water conveying pipe is communicated with a condensed water outlet of the flash tank, and the other end of the condensed water conveying pipe is communicated with a low-pressure condensed water pipe.
The utility model has the advantages that: according to the utility model, the secondary steam and the condensed water are respectively input into the cooling box through the secondary steam pipe and the low-pressure condensed water pipe, the cooling water and the condensed water can be subjected to heat exchange and cooling through the spraying pipe spraying the low-temperature liquefied gas in the cooling water and the disc-shaped heat exchange pipe, white pollution caused by secondary steam discharge is avoided, the secondary steam is guided through the flow equalizing plate, the cooling effect on the secondary steam can be improved, the cooling water is subjected to heat exchange and cooling through the loop-shaped heat exchange pipe, the cyclic utilization of the cooling water can be realized, the water source is saved, and the liquid level height in the cooling box can be controlled through the cooperation of the liquid level meter and the electromagnetic valve.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a cooling assembly according to the present utility model;
FIG. 3 is a schematic diagram showing the connection of the low pressure condensate pipe and the cooling tank according to the present utility model;
FIG. 4 is a schematic diagram showing the connection of the heat exchange tube and the cooling box;
FIG. 5 is a schematic diagram showing the connection of a disc-shaped heat exchange tube and a cooling box according to the present utility model;
FIG. 6 is a schematic diagram of the connection of a shower pipe to a cooling tank according to the present utility model.
In the figure: 101. a cooling assembly; 11. a cooling box; 12. a drain pipe; 13. an electromagnetic valve; 14. a water return pipe; 15. a controller; 16. a circulation pump; 17. a cooling box; 18. a low pressure condensate line; 19. a disc-shaped heat exchange tube; 20. a liquid level gauge; 21. a flow equalizing plate; 22. a secondary steam pipe; 25. a shower pipe; 27. a heat exchange tube having a shape of a loop; 28. a through hole; 301. a flash vaporization assembly; 31. a high pressure condensate pipe; 32. a flash tank; 33. a steam delivery pipe; 34. a condensed water delivery pipe.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-6, the present utility model provides a technical solution: the multi-effect flash evaporation steam cooling device for the desulfurization wastewater comprises a cooling assembly 101, wherein the cooling assembly 101 comprises a cooling box 11, a drain pipe 12, an electromagnetic valve 13, a water return pipe 14, a circulating pump 16, a cooling box 17, a low-pressure condensate pipe 18, a disc-shaped heat exchange pipe 19, a liquid level meter 20, a flow equalizing plate 21, a secondary steam pipe 22, a spray pipe 25 and a loop-shaped heat exchange pipe 27;
the low-pressure condensation water pipe 18 equidistance fixed connection is in the inside wall of cooling tank 11, secondary steam pipe 22 equidistance fixed connection is in the interior bottom wall of cooling tank 11, flow equalizing plate 21 fixed connection is in the inside wall bottom of cooling tank 11, disc heat exchange tube 19 installs in the inside of cooling tank 11, the level gauge 20 is installed in inner wall one side of cooling tank 11, shower 25 equidistance is installed in the interior roof of cooling tank 11, return shape heat exchange tube 27 installs in the inside of cooling tank 17, the one end of return pipe 14 communicates with the delivery port of circulating pump 16, the one end and the return pipe 14 fixed connection of drain pipe 12 communicate, solenoid valve 13 is installed in the lateral wall of return pipe 14.
In this embodiment, specific: the delivery port of cooling tank 17 passes through the water inlet intercommunication of connecting pipe and circulating pump 16, the water inlet of cooling tank 17 passes through the outlet intercommunication of connecting pipe and cooling tank 11, disk heat exchange tube 19 is located between flow equalizing plate 21 and the low pressure condensate pipe 18, the one end that circulating pump 16 was kept away from to the wet return 14 communicates with shower 25, cold water after can cooling in the cooling tank 17 is input to wet return 14 through circulating pump 16, then spout through shower 25, the cold water that sprays through shower 25 carries out heat transfer cooling to oversteam and low pressure condensate, then the cooling water flows to the bottom of cooling tank 11 through flow equalizing plate 21, finally carry in cooling tank 17 through the pipeline, and then can realize the circulation of cooling water.
In this embodiment, specific: through holes 28 are formed in the outer side walls of the low-pressure condensation water pipe 18 and the secondary steam pipe 22, a controller 15 is mounted on the front surface of the cooling box 11, and then cold water in the low-pressure condensation water pipe 18 and secondary steam in the secondary steam pipe 22 can flow out through the through holes 28, and steam uniformly flows upwards from holes in the flow equalization plate 21 under the guidance of the flow equalization plate 21, so that the steam can uniformly contact with the disc-shaped heat exchange pipe 19 and cooling water, and the cooling effect on the steam is improved.
In this embodiment, specific: both ends of the disc-shaped heat exchange tube 19 are positioned outside the cooling box 11, both ends of the loop-shaped heat exchange tube 27 are positioned outside the cooling box 17, and both ends of the disc-shaped heat exchange tube 19 and both ends of the loop-shaped heat exchange tube 27 are respectively communicated with a liquefied gas outlet and a gas inlet of the water bath type vaporizer.
In this embodiment, specific: the flash evaporation assembly 301 is installed outside the cooling tank 11, and the flash evaporation assembly 301 comprises a high-pressure condensate pipe 31, a flash evaporation tank 32, a steam delivery pipe 33 and a condensate delivery pipe 34;
one end of the high-pressure condensate pipe 31 is fixedly connected and communicated with a liquid inlet of the flash tank 32, high-temperature and high-pressure desulfurization wastewater is input into the flash tank 32 through the high-pressure condensate pipe 31, and the desulfurization wastewater can be subjected to flash evaporation treatment through the flash tank 32.
In this embodiment, specific: one end of the steam delivery pipe 33 is communicated with a steam outlet of the flash tank 32, the other end of the steam delivery pipe 33 is communicated with the secondary steam pipe 22, and after the desulfurization wastewater is flashed, the generated secondary steam flows into the secondary steam pipe 22 through the steam delivery pipe 33.
In this embodiment, specific: one end of the condensate delivery pipe 34 is communicated with a condensate outlet of the flash tank 32, the other end of the condensate delivery pipe 34 is communicated with the low-pressure condensate pipe 18, and after the desulfurization wastewater is flashed, the generated low-pressure condensate is delivered into the low-pressure condensate pipe 18 through the condensate delivery pipe 34.
In this embodiment, specific: the electrical output end of the controller 15 is electrically connected with the electrical input ends of the electromagnetic valve 13, the circulating pump 16 and the liquid level meter 20 through the relay respectively, the electrical input end of the controller 15 is connected with an external power supply, and is used for supplying power to the electromagnetic valve 13, the circulating pump 16 and the liquid level meter 20, and the signal output end of the liquid level meter 20 is communicated with the signal input end of the controller 15.
When the device is used, high-temperature high-pressure desulfurization wastewater is input into the flash tank 32 through the high-pressure condensate pipe 31, the desulfurization wastewater can be subjected to flash evaporation treatment through the flash tank 32, generated steam flows into the secondary steam pipe 22 through the steam conveying pipe 33 after the desulfurization wastewater is subjected to flash evaporation, generated low-pressure condensate water is conveyed into the low-pressure condensate pipe 18 through the condensate water conveying pipe 34, cooling water in the cooling tank 17 is pumped by the circulating pump 16 at the moment and then sprayed out through the spray pipe 25, low-temperature liquefied gas is respectively input into the disc-shaped heat exchange pipe 19 and the reflux heat exchange pipe 27 through the external water bath type vaporizer, cold water in the low-pressure condensate pipe 18 and secondary steam in the secondary steam pipe 22 can flow out through the through holes 28, the steam can be uniformly and upwards flow from holes in the flow equalizing plate 21 under the guidance of the flow equalizing plate 21, then the steam and the condensate water can be cooled through the disc-shaped heat exchange pipe 19 and the cold water pipe at the moment, the cooled water after heat exchange flows into the cooling tank 17 at the moment, the low-temperature liquefied gas in the reflux heat exchange pipe 27 exchanges heat with the cooling water at the moment, the low-temperature liquefied gas in the reflux heat exchange pipe is cooled down water is sprayed out through the spray pipe 25, the circulating water level meter is controlled by the water level meter 15 to be sprayed out of the water level meter 15 along with the water level meter 15 when the water level meter is controlled to be sprayed out of the water level meter 15, and the water level meter is controlled to be discharged into the water tank 13, and the water level meter is cooled down, and the water is cooled down and the temperature is cooled down and cooled down.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The multi-effect flash evaporation steam cooling device for the desulfurization wastewater is characterized by comprising a cooling assembly (101), wherein the cooling assembly (101) comprises a cooling box (11), a drain pipe (12), an electromagnetic valve (13), a return pipe (14), a circulating pump (16), a cooling box (17), a low-pressure condensate pipe (18), a disc-shaped heat exchange pipe (19), a liquid level meter (20), a flow equalizing plate (21), a secondary steam pipe (22), a spray pipe (25) and a return-shaped heat exchange pipe (27);
the utility model discloses a cooling box, including cooling box (11), low pressure condenser pipe (18), secondary steam pipe (22), flow equalizing plate (21), disc heat exchange tube (19) are installed in the inside of cooling box (11), level gauge (20) are installed in inner wall one side of cooling box (11), shower (25) are installed in the inner roof of cooling box (11) equidistantly, return pipe (27) are installed in the inside of cooling box (17), the one end of return pipe (14) communicates with the delivery port of circulating pump (16), the one end and the return pipe (14) fixed connection and the intercommunication of drain pipe (12), solenoid valve (13) are installed in the lateral wall of return pipe (14).
2. The multi-effect flash evaporation steam cooling device for desulfurization wastewater according to claim 1, wherein a water outlet of the cooling tank (17) is communicated with a water inlet of a circulating pump (16) through a connecting pipe, and a water inlet of the cooling tank (17) is communicated with a water outlet of the cooling tank (11) through a connecting pipe.
3. The multi-effect flash steam cooling device for desulfurization waste water according to claim 1, wherein the disc-shaped heat exchange tube (19) is positioned between the flow equalizing plate (21) and the low-pressure condensate pipe (18), and one end of the return pipe (14) away from the circulating pump (16) is communicated with the spray pipe (25).
4. A multiple-effect flash steam cooling device for desulfurization waste water according to claim 3, wherein the outer side walls of the low-pressure condensate pipe (18) and the secondary steam pipe (22) are respectively provided with a through hole (28), and the front surface of the cooling box (11) is provided with a controller (15).
5. A multiple-effect flash steam cooling device for desulfurization waste water according to claim 3, wherein both ends of the disc-shaped heat exchange tube (19) are located outside the cooling tank (11), and both ends of the loop-shaped heat exchange tube (27) are located outside the cooling tank (17).
6. The multi-effect flash steam cooling device for desulfurization wastewater according to claim 5, wherein a flash evaporation assembly (301) is installed outside the cooling tank (11), and the flash evaporation assembly (301) comprises a high-pressure condensate pipe (31), a flash evaporation tank (32), a steam conveying pipe (33) and a condensate conveying pipe (34);
one end of the high-pressure condensate pipe (31) is fixedly connected and communicated with a liquid inlet of the flash tank (32).
7. The multi-effect flash steam cooling device for desulfurization wastewater according to claim 6, wherein one end of the steam delivery pipe (33) is communicated with a steam outlet of the flash tank (32), and the other end of the steam delivery pipe (33) is communicated with the secondary steam pipe (22).
8. The multi-effect flash steam cooling device for desulfurization waste water according to claim 6, wherein one end of the condensate conveying pipe (34) is communicated with a condensate outlet of the flash tank (32), and the other end of the condensate conveying pipe (34) is communicated with the low-pressure condensate pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321832554.9U CN220334848U (en) | 2023-07-12 | 2023-07-12 | Multi-effect flash evaporation steam cooling device for desulfurization wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321832554.9U CN220334848U (en) | 2023-07-12 | 2023-07-12 | Multi-effect flash evaporation steam cooling device for desulfurization wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220334848U true CN220334848U (en) | 2024-01-12 |
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ID=89448623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321832554.9U Active CN220334848U (en) | 2023-07-12 | 2023-07-12 | Multi-effect flash evaporation steam cooling device for desulfurization wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220334848U (en) |
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2023
- 2023-07-12 CN CN202321832554.9U patent/CN220334848U/en active Active
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