CN216572351U - Emptying tail gas absorption washing device - Google Patents
Emptying tail gas absorption washing device Download PDFInfo
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- CN216572351U CN216572351U CN202122624709.7U CN202122624709U CN216572351U CN 216572351 U CN216572351 U CN 216572351U CN 202122624709 U CN202122624709 U CN 202122624709U CN 216572351 U CN216572351 U CN 216572351U
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Abstract
The utility model discloses an emptying tail gas absorption washing device which comprises a washing tower, wherein an air inlet and a plurality of water injection ports are formed in the washing tower, the air inlet is communicated with a tail gas filtering port of the washing device, the water injection port on the upper side of the washing tower is communicated with an indirect cooling tower drain pipe through a water supplementing valve, the water injection port on the lower side of the washing tower is communicated with a water return pump, the water return pump is communicated with a water injection port in the middle of the washing tower through a first valve, the water return pump is communicated with a tank body through a second valve, and the tank body is communicated with an ammonia water preparation system. The ammonia absorption device is simple in structure, high in safety performance, good in ammonia absorption effect, economical and practical.
Description
Technical Field
The utility model belongs to the technical field of tail gas treatment, and particularly relates to an emptying tail gas absorption washing device.
Background
In the chemical industry field, safety ring protects and is actively advocated by chemical enterprise's production at present, and at present, unloading tail gas absorbs the washing device and adopts water absorption more, and the unloading tail gas that is built for satisfying this technological requirement absorbs the washing device, and is inefficient, the effect is poor, and ammonia escape is serious. Therefore, we propose a vent tail gas absorption scrubber to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an emptying tail gas absorption washing device which is simple in structure, high in safety performance, good in ammonia absorption effect, economical and practical.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a blowdown tail gas absorbs washing device, includes the scrubbing tower, be provided with air inlet and a plurality of water filling port on the scrubbing tower, the air inlet communicates with the tail gas filter orifice of scrubbing device, scrubbing tower upside water filling port passes through moisturizing valve and intercooling tower drain pipe intercommunication, scrubbing tower downside water filling port and return water pump intercommunication, the return water pump is through first valve and scrubbing tower middle part water filling port intercommunication, the return water pump passes through the second valve and jar body intercommunication, jar body and aqueous ammonia preparation system intercommunication.
And an exhaust port is arranged at the upper side of the washing tower.
And an automatic detection device is arranged between the water return pump and the second valve.
The air inlet is communicated with the tail gas filtering port through an emptying pipe, and a recovery valve and an emptying valve are sequentially arranged on the emptying pipe.
The water supplementing valve comprises a first water supplementing valve and a second water supplementing valve, the first water supplementing valve is communicated with a first indirect cooling tower drain pipe main line, and the second water supplementing valve is communicated with a second indirect cooling tower drain pipe main line.
And an automatic regulating valve is arranged between the first water replenishing valve and the main line of the drainage pipe of the first indirect cooling tower.
Compared with the prior art, the utility model has the beneficial effects that:
1. the water return pump is communicated with a water injection port in the middle of the washing tower through a first valve, the water return pump is communicated with the tank body through a second valve, and the installed water return pump has two purposes, so that circulation and outward delivery can be realized, and the stability of the system is ensured;
2. the water injection port on the upper side of the washing tower is communicated with the drainage pipe of the indirect cooling tower through a water supplementing valve, the used washing water is soft water sprayed and cooled from the compressed indirect cooling tower, and is recycled for washing, absorbing and aerating ammonia at present, and in addition, the replacement water after absorbing the ammonia can be recycled for ammonia water preparation, so that resources are recycled for multiple times, and the environmental protection is facilitated;
3. an automatic detection device is arranged between the water return pump and the second valve, the automatic detection device is used for detecting the content of liquid ammonia in a pipeline passing through the second valve, when the content of the ammonia reaches a set standard, the second valve is opened, ammonia-containing liquid enters the tank body through the second valve, otherwise, the content of the ammonia in the liquid does not reach a set value, the second valve is closed, the ammonia-containing liquid enters the washing tower through the first valve for circulation, the washing water can be used for multiple times, the ammonia absorption effect is good, in addition, the absorbed water is prepared into a qualified ammonia water product for export sales, and the device is economical and practical;
in addition, this absorption washing device simple structure, the security performance is high, and the environmental protection income is obvious, and it is effectual to reduce the unloading ammonia content, and energy saving and consumption reduction.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, the vent tail gas absorption washing device comprises a washing tower 1, wherein an air inlet 11 and a plurality of water injection ports 12 are arranged on the washing tower 1, the air inlet 11 is communicated with a tail gas filtering port of a washing device 2 through a vent pipe 21, and a recovery valve 22 and a vent valve 23 are sequentially arranged on the vent pipe 21. Vacuum pump unloading tail gas filters the back through washing device 2, gets into blow-down pipe 21 from tail gas filter outlet, closes vent valve 23, opens recovery valve 22, and the vent tail gas after the filtration gets into washing tower 1 and washes the recovery, need overhaul or meet emergency when washing tower 1 goes wrong, can open vent valve 23, closes recovery valve 22, and tail gas alright guide to other systems to reply trouble or emergency.
The water injection port 12 on the upper side of the washing tower 1 is communicated with a drainage pipe of an indirect cooling tower through a water supplementing valve 3, the water supplementing valve 3 comprises a first water supplementing valve 31 and a second water supplementing valve 32, the first water supplementing valve 31 is communicated with a main line of a drainage pipe 33 of the indirect cooling tower, the second water supplementing valve 32 is communicated with a main line of a drainage pipe 34 of the indirect cooling tower, and an automatic regulating valve 35 is arranged between the first water supplementing valve 31 and the main line of the drainage pipe 33 of the indirect cooling tower. Two way moisturizing pipelines of first indirect cooling tower drain pipe 33 and second indirect cooling tower drain pipe 34 carry out the moisturizing to ammonia scrubber 1 simultaneously, guarantee to supply the water injection flow in water filling port 12, when moisturizing pipeline cuts off the water supply or the water supply is not enough all the way, automatically regulated valve 35 is used for controlling the velocity of flow of indirect cooling tower drain pipe to carry out reasonable replacement moisturizing according to technology index cooperation moisturizing valve, in order to guarantee that the washing is respond well.
The water injection port 12 on the lower side of the washing tower 1 is communicated with the water return pump 4, the water return pump 4 is communicated with the water injection port 12 in the middle of the washing tower 1 through the first valve 41, the water return pump 4 is communicated with the tank body 5 through the second valve 42, the tank body 5 is communicated with an ammonia water preparation system, an automatic detection device 43 is arranged between the water return pump 4 and the second valve 42, and the second valve 42 can adopt a stop valve. The water return pump 4 can be installed in parallel, one path of the ammonia-containing liquid flowing out of the water injection port 12 at the lower side enters the water injection port 12 at the middle part of the washing tower 1 through the first valve 41 under the action of the water return pump 4 and returns to the washing tower 1 to circulate, the other path of the ammonia-containing liquid enters the tank body 5 through the second valve 42 to carry out the subsequent ammonia water preparation process, the automatic detection device 43 is arranged to detect the content of the liquid ammonia in the pipeline passing through the second valve 42, when the ammonia content reaches the set standard, the second valve 42 is opened, the ammonia-containing liquid enters the tank body 5 through the second valve 42, otherwise, the ammonia content in the liquid does not reach the set value, the second valve 42 is closed, and the ammonia-containing liquid enters the washing tower 1 through the first valve 41 to circulate.
An exhaust port 6 is provided on the upper side of the washing tower 1. Be provided with spray set in the inboard water filling port 12 department of scrubbing tower 1, vacuum pump unloading tail gas gets into scrubbing tower 1 through air inlet 11 after the washing device 2 filters, the moisturizing that is provided by intercooling tower drain pipe that pours into in the upside water filling port 12 washes tail gas through spray set, the low ammoniac liquid that flows out from downside water filling port 12 circulates under the effect of return water pump 4 and gets into water filling port 12, also wash tail gas through spray set, tail gas after washing recovery ammonia is discharged in the gas vent 6 of the 1 upside setting of scrubbing tower.
When the absorption washing device is used, the first water replenishing valve 31 and the second water replenishing valve 32 are opened firstly, after one end of time, the first valve 41 and the water return pump 4 are opened, then the emptying valve 23 is closed, the recovery valve 22 is opened, the filtered emptying tail gas enters the washing tower 1 through the air inlet 11, the emptying tail gas is recovered and washed through the spraying device by the low ammonia-containing liquid circulated back by the water return pump 4 and the water replenishing provided by the drainage pipe of the indirect cooling tower, then the tail gas after ammonia recovery through washing is discharged through the air outlet 6 arranged at the upper side of the washing tower 1, after the ammonia content in the high ammonia-content liquid reaches the set value of the automatic detection device 43, the second valve 42 is opened, the ammonia-containing liquid enters the tank body 5 through the second valve 42, and then the subsequent ammonia water configuration process is carried out.
Claims (6)
1. The utility model provides an unloading tail gas absorbs washing device, includes the scrubbing tower, its characterized in that: be provided with air inlet and a plurality of water filling port on the scrubbing tower, the air inlet communicates with the tail gas filter orifice of washing device, scrubbing tower upside water filling port passes through moisturizing valve and intercooling tower drain pipe intercommunication, scrubbing tower downside water filling port and return water pump intercommunication, the return water pump passes through first valve and scrubbing tower middle part water filling port intercommunication, the return water pump passes through second valve and jar body intercommunication, jar body and aqueous ammonia preparation system intercommunication.
2. The vent tail gas absorption scrubbing apparatus of claim 1, wherein: and an exhaust port is arranged at the upper side of the washing tower.
3. The vent tail gas absorption scrubbing apparatus of claim 2, wherein: and an automatic detection device is arranged between the water return pump and the second valve.
4. The vent tail gas absorption scrubbing apparatus of claim 3, wherein: the air inlet is communicated with the tail gas filtering port through an emptying pipe, and a recovery valve and an emptying valve are sequentially arranged on the emptying pipe.
5. The vent tail gas absorption scrubbing apparatus of claim 4, wherein: the water supplementing valve comprises a first water supplementing valve and a second water supplementing valve, the first water supplementing valve is communicated with a first indirect cooling tower drain pipe main line, and the second water supplementing valve is communicated with a second indirect cooling tower drain pipe main line.
6. The vent tail gas absorption scrubbing apparatus of claim 5, wherein: and an automatic regulating valve is arranged between the first water replenishing valve and the main line of the drainage pipe of the first indirect cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122624709.7U CN216572351U (en) | 2021-10-29 | 2021-10-29 | Emptying tail gas absorption washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122624709.7U CN216572351U (en) | 2021-10-29 | 2021-10-29 | Emptying tail gas absorption washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216572351U true CN216572351U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122624709.7U Active CN216572351U (en) | 2021-10-29 | 2021-10-29 | Emptying tail gas absorption washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216572351U (en) |
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2021
- 2021-10-29 CN CN202122624709.7U patent/CN216572351U/en active Active
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