CN112316704B - Water replenishing device for desalted water of deacidification tower - Google Patents
Water replenishing device for desalted water of deacidification tower Download PDFInfo
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- CN112316704B CN112316704B CN202011128840.8A CN202011128840A CN112316704B CN 112316704 B CN112316704 B CN 112316704B CN 202011128840 A CN202011128840 A CN 202011128840A CN 112316704 B CN112316704 B CN 112316704B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
The invention discloses a desalted water replenishing device of a deacidification tower, which comprises a desalted water tank, wherein the desalted water tank is connected with a gate valve through a pipeline, the output end of the gate valve is connected with a desalted water pump through a pipeline, the output end of the desalted water pump is connected with a throttle valve, and the throttle valve is connected with a desalted water valve through a pipeline system; the system comprises a cooling water tank, wherein the output end of the desalting water valve is connected to the top of the cooling water tank through a pipeline. Adopt this cooling device can carry out the dual intercourse circulative cooling of closed and outer open circulation for the rotary atomization ware of semidry process flue gas deacidification tower, not only can ensure the continuous stability of rotary atomization ware cooling to can avoid recirculated cooling water quality to worsen and lead to influencing the inside knot dirt of rotary atomization ware and influence heat transfer cooling effect, can prolong the life of atomizer.
Description
Technical Field
The invention relates to the field of garbage treatment, in particular to a desalted water replenishing device of a deacidification tower.
Background
The acidic gas pollutants in the flue gas of the waste incineration power plant are mainly HCl, HF and SOx. At the present stage, the emission of smoke pollutants of a plurality of waste incineration power plants is in accordance with European Union 2000 standard, and the mainstream process for removing acid pollutants in smoke is a semidry deacidification reaction tower and a dry process, wherein the semidry deacidification reaction tower is a core facility for deacidifying smoke, lime slurry is sprayed in by adopting a high-speed rotating atomizer to remove acid gas, and the removal efficiency of the semidry process to acid gas can reach more than 95%. The rotary atomizer is the core equipment of the semi-dry deacidification reaction tower, and due to high-speed rotation and the problem of cooling water heat exchange effect, the temperature of the atomizer can rise along with the increase of an operation period, the tripping of the atomizer can be influenced when a certain temperature is exceeded, and the service life of the atomizer can be shortened when the atomizer is in a high-temperature operation state for a long time.
Therefore, the atomizer needs to be cooled down by circulating cooling water using a cooling device for the atomizer. However, the conventional cooling device for the atomizer has the following disadvantages:
(1) deacidify top of tower atomizer cooling system adopts the water tank to store demineralized water, utilizes the water pump pressurization to send the atomizer to carry out closed circulative cooling, recycles industrial water and cools off the demineralized water through plate heat exchanger, realizes the cooling of atomizer body. The consumption and supplement of the demineralized water are carried by manpower, if a demineralized water supplement pipeline is added, water supplement is carried out discontinuously, the inside of the pipeline is rusted due to long-time non-use, the quality of the supplemented water is unqualified, and the temperature of the atomizer body is increased due to poor heat exchange effect caused by dirt and scale accumulated inside the atomizer in operation;
(2) industrial circulating cooling water cools demineralized water through the plate heat exchanger, and the plate heat exchanger can be scaled to influence heat exchange, so that the temperature of the demineralized water is increased, and the temperature of the atomizer is increased;
(3) the demineralized water tank cannot be stored in a sealed manner due to the fact that heat dissipation is needed and a breathing pipeline is additionally arranged, dust on the deacidification tower is heavy, and cooling water quality is unqualified after the demineralized water enters the demineralized water tank, so that the heat exchange effect is influenced;
(4) the quality deterioration of the circulating cooling water can lead to the dirt in the rotary atomizer to influence the heat exchange and cooling effects, and the service life of the atomizer can be prolonged.
Disclosure of Invention
The invention aims to: to the problem that above-mentioned exists, provide a deacidification tower demineralized water moisturizing device, adopt this cooling device can be the core equipment of semidry process flue gas deacidification tower, the rotatory atomizer carries out the dual intercourse of closed and outward-opening circulation and is equipped with circulative cooling, not only can ensure the continuous stability of rotatory atomizer cooling to can avoid circulative cooling water quality to worsen and lead to influencing the inside dirt that binds of rotatory atomizer and influence heat transfer cooling effect, can prolong the life of atomizer.
The technical scheme adopted by the invention is as follows:
a water supplementing device for desalted water of a deacidification tower comprises a desalted water tank, wherein the desalted water tank is connected with a gate valve through a pipeline, the output end of the gate valve is connected with a desalted water pump through a pipeline, the output end of the desalted water pump is connected with a throttle valve, and the throttle valve is connected with a desalted water valve through a pipeline system; the system comprises a cooling water tank, wherein the output end of the desalting water valve is connected to the top of the cooling water tank through a pipeline.
Further, the invention discloses a preferable structure of a deacidification tower demineralized water replenishing device, wherein a cooling water tank is arranged in an open manner, the cooling water tank is connected with a rotary atomizer through a pipeline system, and the cooling water tank is connected to a drain tank through a pipeline; the bottom of the cooling water tank is connected with a discharge valve through a pipeline, and the discharge valve is used for discharging unqualified desalted water.
Further, the input of gate valve with the demineralized water case links to each other, the input of demineralized water pump links to each other with the output of gate valve, the input of demineralized water valve links to each other with the output of choke valve, the input of choke valve with the output of demineralized water pump is linked together.
Furthermore, the cooling water tank is connected with a drain valve through a pipeline, and the output end of the drain valve is connected to the drain tank through a pipeline.
Further, the bottom side of the cooling water tank is connected with a first circulating valve through a pipeline, the input end of the first circulating valve is connected with the cooling water tank, the output end of the first circulating valve is connected with a circulating pump, the input end of the circulating pump is connected with the output end of the first circulating valve, the output end of the circulating pump is connected with a second circulating valve, and the input end of the second circulating valve is connected with the output end of the circulating pump.
Further, the output end of the second circulating valve is connected with the input end of the rotary atomizer through a pipeline, the output end of the rotary atomizer is connected with a first heat exchange valve through a pipeline, the input end of the first heat exchange valve is communicated with the output end of the rotary atomizer, and the output end of the first heat exchange valve is connected with a heat exchanger.
Furthermore, a hot water input end of the heat exchanger is connected with an output end of the first heat exchange valve, a hot water output end of the heat exchanger is connected with the second heat exchange valve through a pipeline, a cold water input end of the heat exchanger is communicated to an industrial water source through a pipeline, and a cold water output end of the heat exchanger is communicated to the circulating water tank through a pipeline.
Further, the input end of the second heat exchange valve is connected with the hot water output end of the heat exchanger, and the output end of the second heat exchange valve is connected to the top of the cooling water tank through a pipeline.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the cooling device can be used for carrying out double mutual-backup circulating cooling of closed type and outward open type circulation on the rotary atomizer of the semidry flue gas deacidification tower, not only can ensure the continuous stability of the cooling of the rotary atomizer, but also can avoid the influence of dirt inside the rotary atomizer due to the deterioration of the quality of circulating cooling water on the heat exchange cooling effect, and can prolong the service life of the atomizer;
2. the consumption and supplement of the desalted water are avoided, and the desalted water is carried by manpower, so that the labor force is saved;
3. the continuous supply of the demineralized water is realized, the quality of the cooling water is guaranteed, and the cooling of the atomizer body is facilitated;
4. realized that the heat that the atomizer produced is in time taken away by demineralized water, can not produce the heat energy accumulation and lead to the cooling water temperature to rise, compare the single closed circulation that adopts of traditional atomizer cooling system, open circulation more does benefit to normal temperature's maintenance, and demineralized water after the heat transfer can get into the drain box and utilize simultaneously.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
the labels in the figure are: 1 is a demineralized water tank, 2 is a gate valve, 3 is a demineralized water pump, 4 is a throttle valve, 5 is a demineralized water valve, 6 is a cooling water tank, 7 is a discharge valve, 8 is a first circulation valve, 9 is a circulation pump, 10 is a second circulation valve, 11 is a rotary atomizer, 12 is a first heat exchange valve, 13 is a heat exchanger, 14 is a second heat exchange valve, and 15 is a drain valve.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in the accompanying drawing 1, the present invention discloses a preferred embodiment of a desalted water replenishing device of a deacidification tower, which comprises a desalted water tank 1, wherein the desalted water tank 1 is connected with a gate valve 2 through a pipeline, an input end of the gate valve 2 is connected with the desalted water tank 1, an output end of the gate valve 2 is connected with a desalted water pump 3 through a pipeline, an input end of the desalted water pump 3 is connected with an output end of the gate valve 2, an output end of the desalted water pump 3 is connected with a throttle valve 4, an input end of the throttle valve 4 is communicated with an output end of the desalted water pump 3, the throttle valve 4 is connected with a desalted water valve 5 through a pipeline system, and an input end of the desalted water valve 5 is connected with an output end of the throttle valve 4.
A cooling water tank 6 is included, and the output end of the desalting water valve 5 is connected to the top of the cooling water tank 6 through a pipeline. The cooling water tank 6 is arranged in an open mode, the cooling water tank 6 is connected with a rotary atomizer 11 through a pipeline system, and the cooling water tank 6 is connected to a drain tank through a pipeline; the cooling water tank 6 is connected with a drain valve 15 through a pipeline, and the output end of the drain valve 15 is connected to the drain tank through a pipeline. The bottom of the cooling water tank 6 is connected with a discharge valve 7 through a pipeline, and the discharge valve 7 is used for discharging the unqualified desalted water.
The bottom side of cooling water tank 6 has first circulation valve 8 through the pipe connection, the input of first circulation valve 8 with cooling water tank 6 links to each other, the output of first circulation valve 8 is connected with circulating pump 9, the input of circulating pump 9 with the output of first circulation valve 8 is connected, the output of circulating pump 9 is connected with second circulation valve 10, the input of second circulation valve 10 with the output of circulating pump 9 is connected.
The output end of the second circulating valve 10 is connected with the input end of the rotary atomizer 11 through a pipeline, the output end of the rotary atomizer 11 is connected with a first heat exchange valve 12 through a pipeline, the input end of the first heat exchange valve 12 is communicated with the output end of the rotary atomizer 11, and the output end of the first heat exchange valve 12 is connected with a heat exchanger 13.
The hot water input end of the heat exchanger 13 is connected with the output end of the first heat exchange valve 12, the hot water output end of the heat exchanger 13 is connected with a second heat exchange valve 14 through a pipeline, the cold water input end of the heat exchanger 13 is communicated to an industrial water source through a pipeline, and the cold water output end of the heat exchanger 13 is communicated to a circulation water tank through a pipeline. The input end of the second heat exchange valve 14 is connected with the hot water output end of the heat exchanger 13, and the output end of the second heat exchange valve 14 is connected to the top of the cooling water tank 6 through a pipeline.
The specific operation process is judged according to the water level of the cooling water tank 6 and the quality of the demineralized water, and when the cooling water tank 6 is too turbid and does not meet the requirement, the discharge valve 7 is opened to discharge the turbid water. Then the gate valve 2, throttle valve 4, and demineralized water valve 5 are opened, and the demineralized water pump 3 is started, and the demineralized water pump 3 pumps clean demineralized water out of the demineralized water tank 1 and sends it into the cooling water tank 6. When the water level of the cooling water tank 6 is insufficient, the demineralized water pump 3 is also started to replenish water.
When the quality of demineralized water reduces, can open trap 15, send demineralized water to the drain tank, carry out the reutilization, improve economic benefits, can take away partly heat simultaneously, reduce cooling water tank 6's temperature.
When the cooling water tank 6 works, the first circulating valve 8, the second circulating valve 10, the first heat exchange valve 12 and the second heat exchange valve 14 are opened, the circulating pump 9 is started, the demineralized water flows from the cooling water tank 6, flows through the first circulating valve 8, the circulating pump 9 and the second circulating valve 10 and enters the rotary atomizer 11, and the demineralized water takes away heat in the rotary atomizer 11.
Then the desalted water enters a heat exchanger 13 through a first heat exchange valve 12, the heat exchanger 13 utilizes the industrial water to cool, and the industrial water is discharged to a recycling tank. The demineralized water passes through the second heat exchange valve 14 to reach the cooling water tank 6 to form circulation.
Like this, adopt this cooling device can carry out the dual intercourse circulative cooling of closed and outer open circulation for the rotary atomization ware of semidry process flue gas deacidification tower, not only can ensure the continuous stability of rotary atomization ware cooling to can avoid recirculated cooling water quality to worsen and lead to influencing the inside dirt that binds of rotary atomization ware and influence heat transfer cooling effect, can prolong the life of atomizer.
The consumption and supplement of the desalted water are avoided, and the desalted water is carried by manpower, so that the labor force is saved; the continuous supply of the demineralized water is realized, the quality of the cooling water is guaranteed, and the cooling of the atomizer body is facilitated; realized that the heat that the atomizer produced is in time taken away by demineralized water, can not produce the heat energy accumulation and lead to the cooling water temperature to rise, compare the single closed circulation that adopts of traditional atomizer cooling system, open circulation more does benefit to normal temperature's maintenance, and demineralized water after the heat transfer can get into the drain box and utilize simultaneously.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a deacidification tower demineralized water moisturizing device which characterized in that: the desalting water tank comprises a desalting water tank (1), wherein the desalting water tank (1) is connected with a gate valve (2) through a pipeline, the output end of the gate valve (2) is connected with a desalting water pump (3) through a pipeline, the output end of the desalting water pump (3) is connected with a throttling valve (4), and the throttling valve (4) is connected with a desalting water valve (5) through a pipeline system; the system comprises a cooling water tank (6), wherein the output end of the desalting water valve (5) is connected to the top of the cooling water tank (6) through a pipeline;
the cooling water tank (6) is arranged in an open mode, the cooling water tank (6) is connected with a rotary atomizer (11) through a pipeline system, and the cooling water tank (6) is connected to a drain tank through a pipeline; the bottom of the cooling water tank (6) is connected with a discharge valve (7) through a pipeline, and the discharge valve (7) is used for discharging unqualified desalted water;
the side face of the bottom of the cooling water tank (6) is connected with a first circulating valve (8) through a pipeline, the input end of the first circulating valve (8) is connected with the cooling water tank (6), the output end of the first circulating valve (8) is connected with a circulating pump (9), the input end of the circulating pump (9) is connected with the output end of the first circulating valve (8), the output end of the circulating pump (9) is connected with a second circulating valve (10), and the input end of the second circulating valve (10) is connected with the output end of the circulating pump (9);
the output of second circulating valve (10) passes through the pipeline and links to each other with the input of rotatory atomizer (11), the output of rotatory atomizer (11) has first heat exchange valve (12) through the pipe connection, the input of first heat exchange valve (12) with the output of rotatory atomizer (11) is linked together, the output of first heat exchange valve (12) is connected with heat exchanger (13).
2. The water replenishing device for the desalted water of the deacidification tower as claimed in claim 1, wherein: the input of gate valve (2) with demineralized water case (1) links to each other, the input of demineralized water pump (3) links to each other with the output of gate valve (2), the input of demineralized water valve (5) links to each other with the output of choke valve (4), the input of choke valve (4) with the output of demineralized water pump (3) is linked together.
3. The water replenishing device for the desalted water of the deacidification tower as claimed in claim 2, wherein: the cooling water tank (6) is connected with a drain valve (15) through a pipeline, and the output end of the drain valve (15) is connected to the drain tank through a pipeline.
4. The water replenishing device for the desalted water of the deacidification tower as claimed in claim 3, wherein: the hot water input end of the heat exchanger (13) is connected with the output end of the first heat exchange valve (12), the hot water output end of the heat exchanger (13) is connected with a second heat exchange valve (14) through a pipeline, the cold water input end of the heat exchanger (13) is communicated to an industrial water source through a pipeline, and the cold water output end of the heat exchanger (13) is communicated to a circulating water tank through a pipeline.
5. The water replenishing device for the desalted water of the deacidification tower as claimed in claim 4, wherein: the input end of the second heat exchange valve (14) is connected with the hot water output end of the heat exchanger (13), and the output end of the second heat exchange valve (14) is connected to the top of the cooling water tank (6) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128840.8A CN112316704B (en) | 2020-10-21 | 2020-10-21 | Water replenishing device for desalted water of deacidification tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128840.8A CN112316704B (en) | 2020-10-21 | 2020-10-21 | Water replenishing device for desalted water of deacidification tower |
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| CN112316704A CN112316704A (en) | 2021-02-05 |
| CN112316704B true CN112316704B (en) | 2023-03-21 |
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| CN202011128840.8A Active CN112316704B (en) | 2020-10-21 | 2020-10-21 | Water replenishing device for desalted water of deacidification tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106050331B (en) * | 2016-08-04 | 2018-02-13 | 河北工程大学 | A kind of generating set steam exhausting cooling method and device |
| CN207945086U (en) * | 2018-01-24 | 2018-10-09 | 济南玮泉生物发电有限公司 | A kind of biomass electric power plant air compressor cooling water heat-exchanger rig |
| CN208678791U (en) * | 2018-06-07 | 2019-04-02 | 光大环保技术研究院（南京）有限公司 | The equipment that a kind of pair of flue gas carries out depickling |
| CN208968128U (en) * | 2018-08-15 | 2019-06-11 | 华西能源工程有限公司 | A kind of half-dried subtraction unit cooling water system of rotating spraying |
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