CN216273199U - Desulfurization slurry flash evaporation heat extraction system with vertical layout - Google Patents
Desulfurization slurry flash evaporation heat extraction system with vertical layout Download PDFInfo
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- CN216273199U CN216273199U CN202122997028.5U CN202122997028U CN216273199U CN 216273199 U CN216273199 U CN 216273199U CN 202122997028 U CN202122997028 U CN 202122997028U CN 216273199 U CN216273199 U CN 216273199U
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Abstract
The utility model discloses a desulfurization slurry flash evaporation heat-extraction system in a vertical layout, which comprises a flash evaporation tower and a spray tower; a desulfurization slurry inlet is formed in the flash tower, a cold slurry outlet is formed in the bottom of the flash tower, and a connecting pipe is communicated with the top of the flash tower; the spray tower sets up directly over the flash column, and during the spray tower was stretched into at the connecting pipe top, be provided with the plate washer directly over the connecting pipe top, the spray tower was located the top at connecting pipe top and is provided with the cooling water import, and the spray tower bottom is provided with the cooling water export, and the spray tower in-connection has the vacuum pump. The floor area of the flash evaporation heat extraction system can be effectively reduced.
Description
Technical Field
The utility model belongs to the field of flash evaporation, and relates to a vertical desulfurization slurry flash evaporation heat-extraction system.
Background
The desulfurization slurry flash evaporation heat extraction technology is a novel flue gas waste heat recovery technology. The technology utilizes the characteristic that the boiling point of the slurry in the wet flue gas desulfurization process is reduced along with the reduction of the environmental pressure to establish a vacuum phase change environment, so that the desulfurization slurry above the current negative pressure saturation temperature is subjected to flash evaporation, negative pressure steam is generated and is conveyed to an absorption heat pump to carry out condensation and heat release on a low-temperature medium, and clean, efficient and low-cost recovery of the waste heat of the desulfurization slurry is realized. The technology can realize multiple purposes of saving energy and water, improving the desulfurization efficiency and eliminating visual pollution of smoke plume, and can simultaneously take energy conservation and emission reduction into consideration.
Because the space of a power plant is limited, the existing flash evaporation heat extraction system has larger occupied area and low space utilization rate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a desulfurization slurry flash evaporation heat-extraction system in a vertical layout, which can effectively reduce the floor area of the flash evaporation heat-extraction system.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
a vertically-arranged desulfurization slurry flash evaporation heat-extraction system comprises a flash evaporation tower and a spray tower;
a desulfurization slurry inlet is formed in the flash tower, a cold slurry outlet is formed in the bottom of the flash tower, and a connecting pipe is communicated with the top of the flash tower;
the spray tower sets up directly over the flash column, and during the spray tower was stretched into at the connecting pipe top, be provided with the plate washer directly over the connecting pipe top, the spray tower was located the top at connecting pipe top and is provided with the cooling water import, and the spray tower bottom is provided with the cooling water export, and the spray tower in-connection has the vacuum pump.
Preferably, the baffle plate at the top of the connecting pipe adopts a hood.
Preferably, the spray tower is provided with a vacuum pipeline, the front end of the vacuum pipeline is communicated with the interior of the spray tower, the vacuum pump is arranged in the vacuum pipeline, and a partition plate is arranged in front of and above the front end of the vacuum pipeline.
Preferably, be provided with the defroster in the flash column, the defroster is located the top of desulfurization thick liquid import.
Preferably, the desulfurization slurry inlet is connected with cloth thick liquid tube bank, and cloth thick liquid tube bank is located the flash column, and cloth thick liquid tube bank level sets up, and it has a plurality of thick liquid exports to follow its axial direction equipartition on the cloth thick liquid tube bank, and the thick liquid export sets up towards the flash column bottom.
Further, one slurry nozzle is connected to each slurry outlet.
Preferably, the cooling water inlet is connected with a water distribution pipe bundle, the water distribution pipe bundle is positioned in the spray tower and horizontally arranged, a plurality of water outlets are uniformly distributed on the water distribution pipe bundle along the axial direction of the water distribution pipe bundle, and the water outlets are arranged towards the bottom of the spray tower.
Further, each water outlet is connected with a cooling water nozzle.
Preferably, the desulfurization slurry inlet and the cooling water inlet are both connected with a pump.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the connecting pipe is arranged through the hole at the upper part of the flash tower, the connecting pipe extends into the spray tower, and the baffle plate is arranged at the top of the connecting pipe, so that cooling water is prevented from entering the flash tower, and therefore, water vapor is heated in the spray tower, the flash tower and the spray tower are vertically arranged, and the floor area of a flash evaporation heating system can be effectively reduced.
Further, set up the hood on the connecting pipe, prevent that spray water from getting into the flash column, and can play the effect of reposition of redundant personnel equipartition to flash steam, improve the heat exchange efficiency of steam and cooling water, fully retrieve flash steam waste heat.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Wherein: 1-a flash column; 2-a demister; 3-cooling water inlet pump; 4-laying a slurry tube bundle; 5-slurry nozzle; 6-slurry pump; 7-distributing water pipe bundles; 8-a vacuum pump; 9-cooling water outlet pump; 10-a spray tower; 11-a separator; 12-a cold slurry pump; 13-a connecting tube; 14-blast cap.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, the desulfurization slurry flash evaporation heat-extraction system with vertical layout according to the present invention comprises a flash evaporation tower 1 and a spray tower 10.
Flash column 1 is circular structure, includes defroster 2, desulfurization thick liquid import, cold thick liquid export and connecting pipe 13 in the flash column 1.
Desulfurization slurry import sets up at 1 middle zone in flash column, desulfurization slurry access connection has cloth thick liquid tube bundle 4, cloth thick liquid tube bundle 4 is located flash column 1, cloth thick liquid tube bundle 4 advance the thick liquid mouth with coal-fired unit wet flue gas desulfurization tower's desulfurization thick liquid exit linkage, stretch into in the flash column, cloth thick liquid tube bundle 4 level sets up, cloth thick liquid tube bundle 4 is gone up and is had a plurality of thick liquid exports along its axial direction equipartition, the thick liquid export sets up towards 1 bottom in the flash column, every thick liquid exit linkage has a thick liquid nozzle 5, thick liquid pump 6 is located cloth thick liquid tube bundle 4 advances the thick liquid mouth, be arranged in extracting thick liquid to flash column 1 in the follow desulfurizing column.
The cold slurry outlet is positioned at the bottom of the flash tower 1, the cold slurry outlet is connected with a cold slurry outlet pipeline, and a cold slurry pump 12 is arranged in the cold slurry outlet pipeline.
The top of the flash tower 1 is communicated with the bottom of the connecting pipe 13.
The spray tower 10 is arranged right above the flash tower 1, and the spray tower 10 comprises a cooling water inlet, a cooling water outlet and a vacuum pump 8.
The top of the connecting pipe 13 extends into the spray tower 10, a baffle is arranged right above the top of the connecting pipe 13, and the baffle adopts a hood 14 to prevent spray water from entering the flash tower 1.
The cooling water inlet is positioned at the top of the spray tower 10 and above the top of the connecting pipe 13, the cooling water inlet is connected with a water distribution pipe bundle 7, the water distribution pipe bundle 7 is positioned in the spray tower 10, the water distribution pipe bundle 7 is horizontally arranged, a plurality of water outlets are uniformly distributed on the water distribution pipe bundle 7 along the axial direction of the water distribution pipe bundle, the water outlets are arranged towards the bottom of the spray tower 10, and each water outlet is connected with a cooling water nozzle; the tail end of the water distribution pipe bundle 7 is provided with a cooling water inlet pump 3.
A vacuum pipeline is arranged on the spray tower 10, the front end of the vacuum pipeline is communicated with the interior of the spray tower 10, a vacuum pump 8 is arranged in the vacuum pipeline, and the vacuum pump 8 is used for vacuumizing the flash tower 1; a partition plate 11 is arranged in front of and above the front end of the vacuum pipeline to prevent liquid drops from entering the vacuum pump.
The working process of the desulfurization slurry flash evaporation heat-extraction system vertically arranged comprises the following steps:
desulfurization slurry from the desulfurizing tower gets into cloth thick liquid tube bank 4, steps up the back through thick liquid pump 6, sprays through thick liquid nozzle 5 and breaks into the dribble, because the inner chamber of flash column 1 is negative pressure environment, the liquid drop of desulfurization slurry takes place the flash distillation, and the flash distillation goes out vapor, and vapor gets into connecting pipe 13 behind the defogging of defroster 2, then gets into in the spray column 10. The cooled cold slurry is collected at the bottom of the flash tower 1, and then is pressurized by the cold slurry pump 12 and then returns to the desulfurization tower.
Cooling water enters the water distribution pipe bundle 7, is subjected to pressure boosting through the cooling water inlet pump 3, is sprayed and crushed into small liquid drops through the cooling water nozzle 10, is cooled and condensed by water vapor flashed out, is mixed with the water vapor, is gathered at the lower part of the spray tower 10, and is subjected to pressure boosting through the cooling water outlet pump 9 and then returns.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the utility model without departing from the spirit and scope of the utility model, which is to be covered by the claims.
Claims (9)
1. A vertically-arranged desulfurization slurry flash evaporation heat-extraction system is characterized by comprising a flash evaporation tower (1) and a spray tower (10);
a desulfurization slurry inlet is arranged on the flash tower (1), a cold slurry outlet is arranged at the bottom of the flash tower (1), and the top of the flash tower (1) is communicated with a connecting pipe (13);
the spray tower (10) is arranged right above the flash tower (1), the top of the connecting pipe (13) stretches into the spray tower (10), a baffle plate is arranged right above the top of the connecting pipe (13), a cooling water inlet is arranged above the spray tower (10) which is positioned at the top of the connecting pipe (13), a cooling water outlet is arranged at the bottom of the spray tower (10), and a vacuum pump (8) is connected in the spray tower (10).
2. The vertically arranged desulfurization slurry flash evaporation heat-extraction system according to claim 1, characterized in that the baffle plate at the top of the connecting pipe (13) adopts a hood (14).
3. The vertically-arranged desulfurization slurry flash evaporation and heat extraction system according to claim 1, characterized in that a vacuum pipeline is arranged on the spray tower (10), the front end of the vacuum pipeline is communicated with the interior of the spray tower (10), the vacuum pump (8) is arranged in the vacuum pipeline, and a partition (11) is arranged in front of and above the front end of the vacuum pipeline.
4. The vertically-arranged desulfurization slurry flash evaporation heat-extraction system is characterized in that a demister (2) is arranged in the flash tower (1), and the demister (2) is positioned above the inlet of the desulfurization slurry.
5. The vertically-arranged desulfurization slurry flash evaporation heat-extraction system according to claim 1, characterized in that a desulfurization slurry inlet is connected with a slurry distribution pipe bundle (4), the slurry distribution pipe bundle (4) is positioned in the flash tower (1), the slurry distribution pipe bundle (4) is horizontally arranged, a plurality of slurry outlets are uniformly distributed on the slurry distribution pipe bundle (4) along the axial direction of the slurry distribution pipe bundle, and the slurry outlets are arranged towards the bottom of the flash tower (1).
6. A vertically arranged desulphurized slurry flash distillation heat extraction system according to claim 5 wherein one slurry nozzle (5) is connected to each slurry outlet.
7. The vertically-arranged desulfurization slurry flash evaporation heat-extraction system according to claim 1, characterized in that the cooling water inlet is connected with a water distribution pipe bundle (7), the water distribution pipe bundle (7) is positioned in the spray tower (10), the water distribution pipe bundle (7) is horizontally arranged, a plurality of water outlets are uniformly distributed on the water distribution pipe bundle (7) along the axial direction, and the water outlets are arranged towards the bottom of the spray tower (10).
8. The vertically arranged desulfurized slurry flash vaporization and heat extraction system of claim 7 wherein one cooling water nozzle is connected to each water outlet.
9. The vertically arranged desulfurization slurry flash evaporation heat-extraction system according to claim 1, wherein the desulfurization slurry inlet and the cooling water inlet are both connected with a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997028.5U CN216273199U (en) | 2021-11-30 | 2021-11-30 | Desulfurization slurry flash evaporation heat extraction system with vertical layout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997028.5U CN216273199U (en) | 2021-11-30 | 2021-11-30 | Desulfurization slurry flash evaporation heat extraction system with vertical layout |
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| Publication Number | Publication Date |
|---|---|
| CN216273199U true CN216273199U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122997028.5U Active CN216273199U (en) | 2021-11-30 | 2021-11-30 | Desulfurization slurry flash evaporation heat extraction system with vertical layout |
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| CN (1) | CN216273199U (en) |
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2021
- 2021-11-30 CN CN202122997028.5U patent/CN216273199U/en active Active
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