CN211936116U - Spray cooling water receiving and out-tower process disposal device in desulfurizing tower - Google Patents
Spray cooling water receiving and out-tower process disposal device in desulfurizing tower Download PDFInfo
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- CN211936116U CN211936116U CN201922493625.7U CN201922493625U CN211936116U CN 211936116 U CN211936116 U CN 211936116U CN 201922493625 U CN201922493625 U CN 201922493625U CN 211936116 U CN211936116 U CN 211936116U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model provides a spray cooling water-receiving and outside-tower process disposal device in a desulfurizing tower, which comprises a desulfurizing tower and a heat exchange unit; the desulfurization tower is sequentially provided with a desulfurization liquid outlet, a flue gas inlet, a desulfurization spraying layer, a water collecting layer, a packing layer, a cooling spraying layer, a demister and a flue gas outlet from bottom to top, wherein the water collecting layer is provided with a water collecting tray, the water collecting tray is provided with a through hole which is communicated up and down and an air cap matched with the through hole, and the bottom of the water collecting tray is provided with a water outlet; the heat exchange unit comprises a heat exchanger, the heat exchanger is provided with a heat medium inlet, a heat medium outlet, a refrigerant inlet and a refrigerant outlet, the heat medium inlet is communicated with a water outlet pipeline at the bottom of the water collecting tray, and the heat medium outlet is communicated with a cooling spray header pipeline. The utility model discloses a spray cooling in the desulfurizing tower and receive water and outer technology processing apparatus of tower has reduced the temperature of desulfurizing tower export flue gas, has reduced the hydrofuge volume, and the plume forms when having reduced the fume emission for better by cooling water absorption such as liquid, dust, aerosol that contain in the flue gas.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, concretely relates to spray cooling in desulfurizing tower and receive water and outer technology processing apparatus of tower.
Background
Besides a large amount of sulfur dioxide, a large amount of fine particles are contained in flue gas generated in the operation process of the coal-fired power plant boiler, and the flue gas can form aerosol pollution at a smoke outlet of a chimney, so that the flue gas is one of important and powerful things formed in severe weather such as dust haze, and the realization of flue gas purification is the urgent affairs in the current atmosphere pollution treatment industry. In addition, because the flue gas discharged from the desulfurization outlet is saturated wet flue gas and the temperature of the discharged flue gas is high, the flue gas is mixed with cold air after being discharged from a chimney, and water vapor in the flue gas is suddenly condensed to form white smoke.
In recent years, white smoke elimination methods include MGGH, a slurry condensation method, a flue condensation method and the like, wherein MGGH is a hydrophily heat exchanger, the scheme is that a cooling section heat exchanger is generally installed at an inlet of an electric dust remover, a warming section heat exchanger is installed at a desulfurization outlet, and desulfurized smoke is heated by utilizing heat of the smoke in front of the electric dust remover, so that the scheme plays a role in eliminating white smoke to a certain extent, but the scheme has the advantages of large modification work amount and high cost, meanwhile, the heat exchanger at the outlet of a desulfurization tower is easy to corrode and leak, and the economy is poor; the slurry condensation white smoke elimination is a method for reducing the temperature of the slurry by installing a heat exchanger on a desulfurization slurry circulating pipeline, thereby reducing the temperature of the slurry, reducing the moisture content of the flue gas and further eliminating white wet smoke plume, but the method is easy to damage the water balance of an absorption tower and has larger potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects existing in the prior art and provide a device for spraying, cooling, receiving water and processing outside a desulfurizing tower.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a desulfurization device comprises a desulfurization tower and a heat exchange unit;
the desulfurization tower is sequentially provided with a desulfurization liquid outlet, a flue gas inlet, a desulfurization spraying layer, a water collecting layer, a packing layer, a cooling spraying layer, a demister and a flue gas outlet from bottom to top, wherein the desulfurization spraying layer is provided with a desulfurization spraying head, the water collecting layer is provided with a water collecting tray, the peripheral edge of the water collecting tray is fixedly connected with the inner wall of the desulfurization tower, the water collecting tray is provided with a through hole which is communicated up and down and an air cap matched with the through hole, the bottom of the water collecting tray is provided with a water outlet, and the cooling spraying layer is provided with a cooling spraying head;
the heat exchange unit comprises a heat exchanger, the heat exchanger is provided with a heat medium inlet, a heat medium outlet, a refrigerant inlet and a refrigerant outlet, the heat medium inlet of the heat exchanger is communicated with the water outlet pipeline at the bottom of the water collecting tray, and the heat medium outlet of the heat exchanger is communicated with the cooling spray header pipeline.
The desulfurization device is characterized in that a desulfurization liquid outlet, a flue gas inlet, a desulfurization spraying layer, a water collecting layer, a packing layer, a cooling spraying layer, a demister and a flue gas outlet are sequentially arranged in a desulfurization tower from bottom to top, and the water collecting layer, the packing layer and the cooling spraying layer realize the cooling of outlet flue gas and then discharge the outlet flue gas through the demister, so that the temperature of the outlet flue gas of the desulfurization tower is reduced, the moisture discharge amount is reduced, and the aim of reducing the formation of smoke plume is fulfilled; the using principle of the desulfurization device is as follows: incinerated flue gas enters a desulfurizing tower through a flue gas inlet of the desulfurizing tower in the desulfurizing tower to reach a desulfurizing spray layer, desulfurizing slurry is sprayed on the desulfurizing spray layer through a desulfurizing spray head to carry out desulfurization and dust removal, the flue gas after passing through the desulfurizing spray layer is changed into wet flue gas, then the wet flue gas enters a packing layer through a gas cap of a water collecting tray, at the moment, the water entering from a refrigerant outlet of a heat exchanger is sprayed by the cooling spray head to further reduce the water content in the flue gas through a demister and then is discharged, the water collecting tray is provided with the gas cap, the gas cap can realize flue gas circulation, but can prevent the water sprayed by the cooling spray head from flowing downwards, the water collected by the water collecting tray absorbs the heat of the flue gas, enters from a heat medium inlet of the heat exchanger and is recycled after heat exchange, the desulfurizing device is provided with the packing layer below the cooling spray layer, and the contact area and the contact time of the water sprayed by the cooling, further improve the cooling effect to the flue gas, also can make the impurity such as liquid, dust, aerosol that contain in the flue gas better by cooling water absorption, improve the fume emission quality.
Preferably, the air cap comprises an air cap cylinder and an air cap cover, the air cap cylinder is a cylinder without an upper bottom surface and a lower bottom surface, the air cap cylinder is communicated with the through hole and extends above the water collecting tray, the air cap cover is fixed above the air cap cylinder, a ventilation interval is reserved between the air cap cover and the air cap cylinder, and the vertical projection of the air cap cylinder is covered by the vertical projection of the air cap cover.
The gas cap of the desulfurization device is simple in structure, and the effect that liquid flows downwards due to the fact that flue gas passes through the water collecting tray can be better achieved.
Preferably, the heat exchange unit further comprises a buffer water tank, a heat medium inlet of the heat exchanger is communicated with a buffer water tank pipeline, the buffer water tank is communicated with a water outlet pipeline of the water collecting tray, and a water pump is communicated with a pipeline between the heat medium inlet of the heat exchanger and the buffer water tank.
Preferably, the buffer water tank is provided with a water inlet, a process water replenishing port, an overflow port, a drain port, a water outlet and a liquid level meter, the water inlet of the buffer water tank is communicated with the water outlet pipeline of the water collecting tray, and the water outlet of the buffer water tank is communicated with the heat medium inlet pipeline of the heat exchanger.
Foretell desulphurization unit is through setting up the buffer tank between the delivery port of heat exchanger and water collection tray, can temporarily store the water that flows out from the delivery port of water collection tray, avoid the aquatic to carry impurity circulation entering heat exchanger tower in, effectively protect heat exchanger and desorption impurity, be provided with the water inlet at the buffering water pitcher, technology moisturizing mouth, overflow mouth, evacuation mouth, delivery port, the level gauge, can supplement the water in the buffer tank or discharge the water in the buffer tank through the evacuation mouth through the moisturizing mouth according to the level gauge, mediate total water balance and clear away impurity
Preferably, the liquid level meter is an ultrasonic liquid level meter, a magnetic turning plate liquid level meter or a differential pressure liquid level meter.
Preferably, the heat exchanger is a liquid-liquid heat exchanger or a gas-liquid heat exchanger.
Preferably, the filler material of the filler layer is glass fiber reinforced plastic, ceramic or stainless steel.
When the packing layer of the desulfurization device adopts the packing material, the gas-liquid contact effect during spraying can be better improved, and the spraying and cooling effect is improved.
Preferably, a first electric valve, a first flowmeter, a first temperature transmitter, a first pressure transmitter, a first local thermometer and a first local pressure gauge are arranged on a pipeline between the heat medium outlet of the heat exchanger and the cooling spray header.
Preferably, a second electric valve, a second flowmeter, a second temperature transmitter and a second local thermometer are arranged on a pipeline between the heat exchanger heat medium inlet and the water outlet of the water collecting tray.
The beneficial effects of the utility model reside in that: the utility model provides a spray cooling and receive water and outer technology processing device of tower in the desulfurizing tower, the utility model discloses a spray cooling and receive water and outer technology processing device of tower in the desulfurizing tower has reduced the temperature of desulfurizing tower export flue gas, has reduced the hydrofuge volume, and the smoke feather forms when having reduced the flue gas emission for impurity such as liquid, dust, aerosol that contain in the flue gas is better absorbed by cooling water, improves the flue gas emission quality.
Drawings
Fig. 1 is a schematic structural diagram of a desulfurization device according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a water collecting tray of the desulfurization device according to the embodiment of the present invention.
Wherein, 1, a desulfurizing tower, 2, a heat exchanger, 3, a buffering water tank, 4, a water outlet of a water collecting tray, 5, a first flowmeter, 6, a flue gas inlet, 7, a desulfurizing spray layer, 8, a desulfurizing spray header, 9, a water collecting tray, 10, an air cap, 11, a packing layer, 12, a cooling spray layer, 13, a cooling spray header, 14, a demister, 15, a flue gas outlet, 16, a desulfurizing liquid outlet, 17, a slurry circulating pump, 18, a refrigerant inlet, 19, a heat medium outlet, 20, a refrigerant outlet, 21, a heat medium inlet, 22, a water pump, 23, a first thermometer, 24, a first electric valve, 25, a water outlet of the buffering water tank, 26, a vent of the buffering water tank, 27, a process water replenishing port of the buffering water tank, 28, a water inlet of the buffering water tank, 29, a liquid level meter of the buffering water tank, 30, a second thermometer, 31, an overflow port of the buffering water tank, 32 and a through hole, 33. an air cap cylinder 34 and an air cap cover.
Detailed Description
For better illustrating the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following embodiments.
Example 1
As shown in fig. 1 and 2, the desulfurization device according to the embodiment of the present invention includes a desulfurization tower 1 and a heat exchange unit;
the desulfurization tower 1 is sequentially provided with a desulfurization liquid outlet 16, a flue gas inlet 6, a desulfurization spraying layer 7, a water collecting layer, a packing layer 11, a cooling spraying layer 12, a demister 14 and a flue gas outlet 15 from bottom to top, the desulfurization spraying layer 7 is provided with a desulfurization spraying head 8, the water collecting layer is provided with a water collecting tray 9, the peripheral edge of the water collecting tray 9 is fixedly connected with the inner wall of the desulfurization tower 1, the water collecting tray 9 is provided with a through hole 32 which is vertically communicated and an air cap 10 matched with the through hole 32, the bottom of the water collecting tray is provided with a water outlet 4, and the cooling spraying layer 12 is provided with a cooling spraying head 13;
the heat exchange unit comprises a heat exchanger 2, the heat exchanger is provided with a heat medium inlet 21, a heat medium outlet 19, a refrigerant inlet 18 and a refrigerant outlet 20, the heat medium inlet of the heat exchanger is communicated with a water outlet pipeline at the bottom of the water collecting tray, and the heat medium outlet of the heat exchanger is communicated with a cooling spray header pipeline.
In order to better realize that the smoke passes through the water collecting tray and prevents liquid from flowing downwards, the air cap 10 comprises an air cap cylinder 33 and an air cap cover 34, the air cap cylinder is a cylinder without an upper bottom surface and a lower bottom surface, the air cap cylinder is communicated with the through hole and extends above the water collecting tray, the air cap cover is fixed above the air cap cylinder, a ventilation interval is reserved between the air cap cover and the air cap cylinder, and the vertical projection of the air cap cover covers the vertical projection of the air cap cylinder.
Further, the heat exchange unit further comprises a buffer water tank 3, a heat medium inlet of the heat exchanger is communicated with a buffer water tank pipeline, the buffer water tank 3 is provided with a water inlet 28, a process water replenishing port 27, a water outlet 25, a drain port 26 and a liquid level meter 29, the water inlet of the buffer water tank is communicated with a water outlet pipeline of the water collecting tray, the water outlet of the buffer water tank is communicated with the heat medium inlet pipeline of the heat exchanger, and a water pump 22 is communicated with a pipeline between the heat medium inlet of the heat exchanger and the water outlet of the buffer water tank. Set up the delivery port outflow water that the buffer tank can temporarily store from catchment tray, avoid the aquatic to carry impurity circulation entering heat exchanger tower in, effectively protect heat exchanger and desorption impurity, be provided with water inlet, moisturizing mouth, delivery port, evacuation mouth and level gauge at the buffering water pitcher, can supply the water in the buffer tank or discharge the water in the buffer tank through the evacuation mouth through the moisturizing mouth according to the level gauge, adjust the total water yield balance and get rid of impurity.
Further, the liquid level meter is an ultrasonic liquid level meter, a magnetic turning plate liquid level meter or a differential pressure liquid level meter.
In order to avoid blockage caused by the fact that impurities such as aerosol, dust and the like are contained in water of the cooling spray header in the heat exchange process, the heat exchanger is a liquid-liquid heat exchanger or a gas-liquid heat exchanger.
Furthermore, a first electric valve 24, a first flowmeter 5, a first temperature transmitter, a first pressure transmitter, a first local thermometer 23 and a first local pressure gauge are arranged on a pipeline between a heat medium outlet of the heat exchanger and the cooling spray header.
Further, a second electric valve, a second flowmeter, a second temperature transmitter and a second local thermometer 30 are arranged on a pipeline between a heat medium inlet of the heat exchanger and a water outlet of the water collecting tray.
Furthermore, the desulfurization spray header 8 is communicated with a desulfurization solution supply mechanism.
The using principle of the desulfurization device of the embodiment is as follows: incinerated flue gas enters a desulfurizing tower through a flue gas inlet of the desulfurizing tower in the desulfurizing tower to reach a desulfurizing spray layer, desulfurizing slurry is sprayed on the desulfurizing spray layer through a desulfurizing spray head to carry out desulfurization and dust removal, the flue gas after passing through the desulfurizing spray layer is changed into wet flue gas, then the wet flue gas enters a packing layer through a gas cap of a water collecting tray, at the moment, the water entering from a refrigerant outlet of a heat exchanger is sprayed by the cooling spray head to further reduce the water content in the flue gas through a demister and then is discharged, the water collecting tray is provided with the gas cap, the gas cap can realize flue gas circulation, but can prevent the water sprayed by the cooling spray head from flowing downwards, the water collected by the water collecting tray absorbs the heat of the flue gas, enters from a heat medium inlet of the heat exchanger and is recycled after heat exchange, the desulfurizing device is provided with the packing layer below the cooling spray layer, and the contact area and the contact time of the water sprayed by the cooling, further improve the cooling effect to the flue gas, also can make the impurity such as liquid, dust, aerosol that contain in the flue gas better by cooling water absorption, improve the fume emission quality.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A spray cooling water receiving and outside-tower process disposal device in a desulfurization tower is characterized by comprising a desulfurization tower and a heat exchange unit; the desulfurization tower is sequentially provided with a desulfurization liquid outlet, a flue gas inlet, a desulfurization spraying layer, a water collecting layer, a packing layer, a cooling spraying layer, a demister and a flue gas outlet from bottom to top, wherein the desulfurization spraying layer is provided with a desulfurization spraying head, the water collecting layer is provided with a water collecting tray, the peripheral edge of the water collecting tray is fixedly connected with the inner wall of the desulfurization tower, the water collecting tray is provided with a through hole which is communicated up and down and an air cap matched with the through hole, the bottom of the water collecting tray is provided with a water outlet, and the cooling spraying layer is provided with a cooling spraying head; the heat exchange unit comprises a heat exchanger, the heat exchanger is provided with a heat medium inlet, a heat medium outlet, a refrigerant inlet and a refrigerant outlet, the heat medium inlet of the heat exchanger is communicated with the water outlet pipeline at the bottom of the water collecting tray, and the heat medium outlet of the heat exchanger is communicated with the cooling spray header pipeline.
2. The device for spraying, cooling, collecting water and performing external process treatment on the desulfurization tower as recited in claim 1, wherein the air cap comprises an air cap cylinder and an air cap cover, the air cap cylinder is a cylinder without an upper bottom surface and a lower bottom surface, the air cap cylinder is communicated with the through hole and extends above the water collecting tray, the air cap cover is fixed above the air cap cylinder, a ventilation interval is reserved between the air cap cover and the air cap cylinder, and a vertical projection of the air cap cover covers a vertical projection of the air cap cylinder.
3. The device for spraying, cooling, collecting and treating the water outside the desulfurization tower as claimed in claim 1, wherein the heat exchange unit further comprises a buffer water tank, a heat medium inlet of the heat exchanger is communicated with a pipeline of the buffer water tank, the buffer water tank is communicated with a water outlet pipeline of the water collecting tray, and a water pump is communicated with a pipeline between the heat medium inlet of the heat exchanger and the buffer water tank.
4. The device for spraying, cooling, collecting and treating the water outside the desulfurization tower as claimed in claim 3, wherein the buffer water tank is provided with a water inlet, a process water replenishing port, an overflow port, a drain port, a water outlet and a liquid level meter, the water inlet of the buffer water tank is communicated with the water outlet pipeline of the water collecting tray, and the water outlet of the buffer water tank is communicated with the heat medium inlet pipeline of the heat exchanger.
5. The device for spraying, cooling, receiving water and performing external process treatment on the desulfurization tower as recited in claim 4, wherein the liquid level meter is an ultrasonic liquid level meter, a magnetic turning plate liquid level meter or a differential pressure liquid level meter.
6. The device for spraying, cooling, receiving water and performing external process treatment on the desulfurization tower as recited in claim 1, wherein a desulfurization solution outlet of the desulfurization tower is communicated with the desulfurization spray header through a pipeline, and a slurry circulating pump is communicated with the pipeline between the desulfurization solution outlet of the desulfurization tower and the desulfurization spray header.
7. The device for spraying, cooling, collecting water and performing external process treatment on the desulfurization tower as claimed in claim 1, wherein the heat exchanger is a liquid-liquid heat exchanger or a gas-liquid heat exchanger.
8. The device for spraying, cooling, collecting water and performing external process treatment on the desulfurization tower as recited in claim 1, wherein the filler material of the filler layer is glass fiber reinforced plastic, ceramic or stainless steel.
9. The device for spraying, cooling, water receiving and treating the process outside the desulfurization tower as claimed in claim 1, wherein a first electric valve, a first flowmeter, a first temperature transmitter, a first pressure transmitter, a first local thermometer and a first local pressure gauge are arranged on a pipeline between the heat medium outlet of the heat exchanger and the cooling spray header.
10. The device for spraying, cooling, receiving water and performing external process treatment on the desulfurization tower as recited in claim 1, wherein a second electric valve, a second flowmeter, a second thermometer and a second temperature transmitter are arranged on a pipeline between a heat medium inlet of the heat exchanger and a water outlet of the water collecting tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922493625.7U CN211936116U (en) | 2019-12-31 | 2019-12-31 | Spray cooling water receiving and out-tower process disposal device in desulfurizing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922493625.7U CN211936116U (en) | 2019-12-31 | 2019-12-31 | Spray cooling water receiving and out-tower process disposal device in desulfurizing tower |
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| CN211936116U true CN211936116U (en) | 2020-11-17 |
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| CN201922493625.7U Active CN211936116U (en) | 2019-12-31 | 2019-12-31 | Spray cooling water receiving and out-tower process disposal device in desulfurizing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054164A (en) * | 2019-12-31 | 2020-04-24 | 西安西矿环保科技有限公司 | Spray cooling water receiving and out-tower process disposal device in desulfurizing tower |
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2019
- 2019-12-31 CN CN201922493625.7U patent/CN211936116U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054164A (en) * | 2019-12-31 | 2020-04-24 | 西安西矿环保科技有限公司 | Spray cooling water receiving and out-tower process disposal device in desulfurizing tower |
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Address after: 710065 7th floor, block B, Huajing Plaza, No.20, Fenghui South Road, high tech Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an Longjing Environmental Protection Technology Co.,Ltd. Address before: 710065 7th floor, block B, Huajing Plaza, No.20, Fenghui South Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN XIKUANG ENVIRONMENTAL PROTECTION Co.,Ltd. |
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