CN212541047U - Tail gas washing tower energy-saving control system - Google Patents
Tail gas washing tower energy-saving control system Download PDFInfo
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- CN212541047U CN212541047U CN202020968983.9U CN202020968983U CN212541047U CN 212541047 U CN212541047 U CN 212541047U CN 202020968983 U CN202020968983 U CN 202020968983U CN 212541047 U CN212541047 U CN 212541047U
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- washing
- tail gas
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- water washing
- speed
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- 238000005406 washing Methods 0.000 title claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000005201 scrubbing Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001139 pH measurement Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a tail gas treatment field, concretely relates to tail gas washing tower energy-saving control system. The system comprises a washing tower, wherein a washing cavity is arranged in the washing tower, and a tail gas inlet pipe is arranged at the lower part of the washing cavity; the plurality of spray headers are arranged at the upper part of the water washing cavity; the tail gas flow monitoring module is arranged on the tail gas inlet pipe; the water washing pool is arranged in the water washing cavity; and the speed regulation driving module is arranged in the washing tank, drives the washing liquid in the washing tank to the spray header, and regulates the speed according to the numerical value of the tail gas flow monitoring module. Adopt the utility model discloses, utilize the change of exhaust flow and washing cavity normal wash water's pH and pH change rate to decide the quantity that needs to participate in the shower head of washing flow and speed governing drive module's functioning speed, the dynamic allocation resource reaches and can reach efficient water washing efficiency, also can realize energy-conserving purpose.
Description
Technical Field
The utility model relates to a metal coating tail gas treatment field, concretely relates to tail gas washing tower energy-saving control system.
Background
A large amount of tail gas is generated in a plurality of metal coating production lines (such as PVD and CVD coating), and the tail gas can be exhausted after being treated to prevent environmental pollution. The tail gas is absorbed by the tail gas washing tower in the tail gas treatment stage, in the prior art, only the absorption efficiency of the tail gas washing tower is usually concerned, but a large amount of water resources are usually consumed to absorb the tail gas in the tail gas washing tower, so that the resource waste is caused.
Disclosure of Invention
The utility model aims at providing a tail gas washing tower energy-saving control system to solve above-mentioned problem, make tail gas treatment can compromise high efficiency and energy-conservation.
The utility model discloses a concrete scheme as follows:
the utility model provides a tail gas scrubbing tower energy-saving control system which characterized in that, includes the scrubbing tower, is provided with in the scrubbing tower:
a water washing cavity;
the tail gas inlet pipe is arranged at the lower part of the water washing cavity;
the plurality of spray headers are arranged at the upper part of the water washing cavity;
the tail gas flow monitoring module is arranged on the tail gas inlet pipe;
the water washing pool is arranged in the water washing cavity;
and the speed regulation driving module is arranged in the washing tank, drives the washing liquid in the washing tank to the spray header, and regulates the speed according to the numerical value of the tail gas flow monitoring module. By adopting the control system, the running speed of the speed-regulating driving module can be controlled according to the flow of the tail gas, so that the liquid spraying speed of the spraying head is controlled, and the effect of achieving the optimal water washing efficiency by using the least resources is achieved.
Preferably, the speed regulation driving module is a speed regulation submersible pump.
Preferably, the washing cavity further comprises a pH measuring module, the pH measuring module measures the pH of the washing liquid in the washing cavity, and the speed regulation driving module regulates the speed according to the measured values of the tail gas flow monitoring module and the pH measuring module. The pH value is added as a reference variable, so that the adjustment degree of the speed regulation driving module can be controlled more accurately.
Preferably, each spray header is provided with a switch device. The switch device is turned on or off according to monitoring results of the exhaust flow detection module and the pH measurement module. The device can be manually opened and closed, and can also be automatically controlled by arranging a switch device to be electrically connected with the exhaust flow detection module and the pH measurement module.
Preferably, the water washing cavities are connected in series in one or more. And the multi-stage water washing is carried out to ensure the purification degree of the tail gas.
Preferably, the washing chamber further comprises a tail exhaust fan control module and a tail exhaust fan arranged on the tail gas inlet pipe, the tail exhaust fan control module is connected with the washing chamber, and the tail exhaust fan control module controls the operating frequency of the tail exhaust fan according to the gas pressure in the washing chamber. The frequency of the tail exhaust fan is controlled to realize the stability of the pressure of the cavity, and the washing efficiency can be improved. The interior of the tail air exhauster control module can be realized by adopting a PID algorithm control module.
Preferably, the washing cavity is provided with:
the water inlet pipeline is communicated with the washing pool;
and the water outlet pipeline is communicated with the water washing pool.
Has the advantages that:
(1) the utility model controls the frequency of the tail exhaust fan through the control module of the tail exhaust fan to control the stability of the tail gas pressure in the washing cavity in a short time, thereby improving the washing efficiency;
(2) the utility model discloses the scheme utilizes the change of exhaust flow and washing cavity normal wash water's pH and pH change rate to decide the quantity that needs to participate in the shower head of washing flow and the functioning speed of speed governing immersible pump, and the dynamic allocation resource reaches and can reach water washing efficiency, also can realize energy-conserving purpose.
Drawings
FIG. 1 a schematic view of a portion of a control module of the present invention
FIG. 2 is a schematic view of the structure of the water washing chamber of the present invention
FIG. 3 is a schematic diagram of the control module of the tail-blower to control the operation state of the tail-blower
FIG. 4 is a schematic diagram of the operation of the speed-regulating drive module
1-a water washing cavity; 2-a spray header; 3-an exhaust flow monitoring module; 4-tail gas inlet pipe; 5-a pH measurement module; 6-tail exhaust fan; 7-tail air exhaust machine control module.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art, and the present invention is not limited thereto.
The utility model discloses a high-efficient energy-saving control system of tail gas washing tower, including the scrubbing tower, be provided with washing chamber 1 in the scrubbing tower, as shown in figure 2 is the washing chamber structure schematic diagram of the utility model, it can be seen that washing chamber lower part is provided with a tail gas intake pipe 4, is provided with three shower heads 2 on washing chamber 1 upper portion, is used for liquid to spray downwards; the tail gas inlet pipe 4 is provided with a tail gas flow monitoring module 3 for detecting the inlet flow of tail gas in the tail gas inlet pipe 4; a water washing tank (not shown in the figure) is also arranged in the water washing cavity 1, and is positioned at the lower part in the water washing cavity 1 and used for containing water washing liquid used for washing tail gas; a speed-regulating driving module is arranged in the water washing pool and drives the water washing liquid in the water washing pool to the spray header.
In this embodiment, the speed-regulating driving module is a speed-regulating submersible pump, and for normal operation, the liquid level of the water washing liquid in the water washing tank is higher than the lowest water level required by the speed-regulating submersible pump. As shown in fig. 1, the operation speed of the speed-adjusting driving module is controlled according to the monitoring results of the exhaust flow monitoring module and the pH measuring module, so as to control the liquid spraying speed of the spray header 2, thereby achieving the effect of achieving the optimal water washing efficiency with the least resources.
As shown in fig. 2, a pH measuring module 5 is further disposed on the water washing chamber 1, and the speed regulation driving module regulates the speed according to the monitoring results of the exhaust flow monitoring module 3 and the pH measuring module 5. The speed regulation driving module can be used for carrying out manual speed regulation according to a monitoring result, and the speed regulation driving module, the exhaust flow monitoring module 3 and the pH measuring module 5 can be arranged for carrying out automatic speed regulation in an electrical connection relationship.
In this embodiment, each of the shower heads 2 is provided with a switch device for controlling the on/off of the shower head 2. The opening and closing of the switch device is determined based on the monitoring results of the exhaust gas flow rate monitoring module 3 and the pH measuring module 5.
In summary, by using the control system, the operation speed of the speed-adjusting driving module and the on/off of the shower head 2 can be controlled according to the monitoring results of the exhaust flow monitoring module 3 and the pH measuring module 5, so as to control the liquid spraying speed of the shower head 2 and the opening number of the shower head 2, thereby achieving the effect of achieving the optimal water washing efficiency with the least resources.
Of course, the water washing chamber 1 may be one or more in series.
As shown in fig. 2, the washing chamber 1 further includes a tail exhaust fan 6 and a tail exhaust fan control module 7, the tail exhaust fan 6 is disposed on the tail gas inlet pipe 4 for exhausting tail gas into the washing chamber 1, and the tail exhaust fan control module 7 controls the operation frequency of the tail exhaust fan 6 according to the gas pressure in the washing chamber 1. The specific operation mode can be various, for example, a pressure sensing device is arranged on the tail-exhaust fan control module 7, the pressure sensing device is arranged in the washing cavity 1, and the tail-exhaust fan control module 7 controls the operation frequency of the tail-exhaust fan 6 according to the value of the pressure sensing device.
As shown in fig. 3, which is a schematic diagram of the tail-exhaust-fan control module 7 controlling the operation state of the tail exhaust fan 6, it can be seen that after the energy-saving control system of the washing tower starts to work, the tail-exhaust-fan control module 7 adjusts the operation state of the tail exhaust fan 6 according to the internal pressure of the water washing chamber 1. When the pressure in the water washing cavity 1 is normal, the tail gas washing is normally carried out; when the pressure in the washing cavity 1 is abnormal, the tail exhaust fan control module 7 controls and changes the running speed of the tail exhaust fan 6.
As shown in fig. 4, in order to determine the operating speed of the speed-adjusting driving module according to the pH value of the washing liquid and the value of the tail gas flow, it can be seen that after the washing tower control system starts to work, whether the tail gas flow and the pH value are in the normal range is determined according to the data obtained by the tail gas flow monitoring module 3 and the pH monitoring module 5, and if so, the washing tower operates normally; if the flow is too large and/or the pH of the washing liquid is too large or too small or the two numerical values change too fast, the running speed of the speed-regulating driving module is increased or the opening number of the spray headers 2 is increased; if the flow is reduced and the pH value of the washing liquid is not obviously changed and the pH value is normal, the rotating speed of the speed-regulating driving module is reduced or part of the spray headers 2 are closed.
The washing cavity 1 is also provided with a water inlet pipeline and a water outlet pipeline (both not shown in the figure), and the water inlet pipeline and the water outlet pipeline are both communicated with the washing pool; when the water washing liquid in the water washing pool can not be reused after being washed for multiple times, the water washing liquid in the water washing pool is discharged through the drainage pipeline, and new external water is introduced into the water washing pool through the water inlet pipeline.
By adopting the control system, resources are dynamically allocated, and the purposes of achieving high-efficiency water washing efficiency and saving energy are achieved.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. The utility model provides a tail gas scrubbing tower energy-saving control system which characterized in that, includes the scrubbing tower, is provided with in the scrubbing tower:
a water washing chamber (1);
the tail gas inlet pipe (4) is arranged at the lower part of the water washing cavity (1);
the plurality of spray headers (2) are arranged at the upper part of the water washing cavity (1);
the tail gas flow monitoring module (3) is arranged on the tail gas inlet pipe (4);
the water washing pool is arranged in the water washing cavity (1);
and the speed regulation driving module is arranged in the washing tank, drives the washing liquid in the washing tank to the spray header (2), and regulates the speed according to the numerical value of the tail gas flow monitoring module (3).
2. The control system of claim 1, wherein the speed regulated drive module is a speed regulated submersible pump.
3. The control system according to claim 1, characterized in that the water washing chamber (1) further comprises a pH measuring module (5), the pH measuring module (5) measures the pH value of the water washing liquid in the water washing chamber (1), and the speed regulating driving module regulates the speed according to the measured values of the exhaust flow monitoring module (3) and the pH measuring module (5).
4. Control system according to claim 1, characterized in that the washing chamber (1) is one or more in series.
5. A control system according to any one of claims 1 to 4, characterised in that a switch device is provided on each shower head (2).
6. The control system according to any one of claims 1 to 4, wherein the washing chamber (1) further comprises a tail exhaust fan control module (7) and a tail exhaust fan (6) arranged on the tail gas inlet pipe (4), and the tail exhaust fan control module (7) controls the operating frequency of the tail exhaust fan (6) according to the gas pressure in the washing chamber (1).
7. The control system according to any one of claims 1 to 4, characterized in that the washing chamber (1) is provided with:
the water inlet pipeline is communicated with the washing pool;
and the water outlet pipeline is communicated with the water washing pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020968983.9U CN212541047U (en) | 2020-06-01 | 2020-06-01 | Tail gas washing tower energy-saving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020968983.9U CN212541047U (en) | 2020-06-01 | 2020-06-01 | Tail gas washing tower energy-saving control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212541047U true CN212541047U (en) | 2021-02-12 |
Family
ID=74544926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020968983.9U Active CN212541047U (en) | 2020-06-01 | 2020-06-01 | Tail gas washing tower energy-saving control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212541047U (en) |
-
2020
- 2020-06-01 CN CN202020968983.9U patent/CN212541047U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 27 Changjiang South Road, Xinwu District, Wuxi City, Jiangsu Province, China Patentee after: Jiangsu micro nano technology Co.,Ltd. Country or region after: China Address before: No.11 Lijiang Road, Xinwu District, Wuxi City, Jiangsu Province Patentee before: Jiangsu micro nano technology Co.,Ltd. Country or region before: China |