CN218981056U - Waste gas purifying device - Google Patents
Waste gas purifying device Download PDFInfo
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- CN218981056U CN218981056U CN202223071382.6U CN202223071382U CN218981056U CN 218981056 U CN218981056 U CN 218981056U CN 202223071382 U CN202223071382 U CN 202223071382U CN 218981056 U CN218981056 U CN 218981056U
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- liquid tank
- valve
- gas purifying
- liquid
- exhaust gas
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- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to an exhaust gas purifying device which comprises a spray tower, a liquid tank and a controller. The spray tower is communicated with the bottom of the liquid tank, and a circulating pump is connected between the top of the spray tower and the bottom of the liquid tank. The circulating pump is connected with the controller by a wire. The bottom of the liquid tank is provided with a water outlet and a drain valve, and a float valve is arranged in the liquid tank, and the liquid tank is characterized in that: an automatic valve is connected between the ball float valve and the tap water pipe. The liquid tank is provided with an analog liquid level meter, and the analog liquid level meter and the automatic valve are connected with the controller by virtue of wires. By adopting the waste gas purifying device, the workload of a subsequent waste water station can be reduced, and the waste of water resources is avoided. Is suitable for purifying acid-base waste gas generated by an electroplating production line.
Description
Technical Field
The present utility model relates to an exhaust gas purifying mechanism. In particular to an exhaust gas purifying device for purifying acid-base exhaust gas generated by an electroplating production line.
Background
At present, an exhaust gas purifying device for purifying acid-base exhaust gas generated in an electroplating production line is a conventional exhaust gas purifying device. The traditional waste gas purifying device comprises a spray tower and a liquid tank, wherein the bottoms of the spray tower and the liquid tank are communicated, and a circulating pump is connected between the tops of the spray tower and the liquid tank. The bottom of the liquid tank is provided with a water outlet and a drain valve, and a float valve is arranged in the drain valve. The liquid tank is filled with spray liquid which is used as a medium. The water replenishing of the liquid tank is controlled by a float valve. When the automatic water replenishing device is in operation, when the liquid level in the liquid tank is lower than the set liquid level, the liquid level meter can convert the current low liquid level into an electric signal and send the electric signal to the controller, and after the low liquid level signal is calculated and processed by a computer in the controller, an instruction is given to the float valve, so that the float valve is opened to replenish water for the liquid tank. When the liquid level in the liquid tank is higher than the set liquid level, the liquid level meter can convert the current high liquid level into an electric signal and send the electric signal to the controller, and after the high liquid level signal is calculated and processed by a computer in the controller, an instruction is given to the float valve to enable the float valve to be closed, and the water supplementing for the liquid tank is stopped. In the operation process of the circulating pump, the spray liquid sent out from the spray pump can flow back into the bottom of the liquid tank only after passing through a plurality of packing layers in the spray tower and reaching the bottom of the tower. This process has a certain time difference. That is, after the spray liquid in the liquid tank is pumped out by the circulating pump, the liquid level in the liquid tank is rapidly reduced in a period of time when the spray liquid does not flow back into the liquid tank, so that the float valve is opened to replenish water for the liquid tank, and a large amount of water is discharged after the machine is stopped. The increase of drainage not only can increase the work load of the subsequent waste water station, but also can cause the waste of water resources.
Disclosure of Invention
The utility model aims to overcome the defects and provide an exhaust gas purifying device. By adopting the waste gas purifying device, the workload of a subsequent waste water station can be reduced, and the waste of water resources is avoided.
The above problems to be solved by the present utility model are realized by the following technical solutions:
the waste gas purifying device comprises a spray tower, a liquid tank and a controller. The spray tower is communicated with the bottom of the liquid tank, and a circulating pump is connected between the top of the spray tower and the bottom of the liquid tank. The circulating pump is connected with the controller by a wire. The bottom of the liquid tank is provided with a water outlet and a drain valve, and a float valve is arranged in the liquid tank, and the liquid tank is characterized in that: an automatic valve is connected between the ball float valve and the tap water pipe. The liquid tank is provided with an analog liquid level meter, and the analog liquid level meter and the automatic valve are connected with the controller by virtue of wires.
A first manual valve and a second manual valve are respectively arranged between the float valve and the outlet of the automatic valve and between the inlet of the automatic valve and the tap water pipe.
A third manual valve is arranged between the upper part of the inner cavity of the liquid tank and the tap water pipe.
The top of the inner cavity of the liquid tank is provided with an overflow port which is communicated with the outlet of the drain valve by a pipeline.
The liquid tank is provided with a conductivity meter and a PH value meter.
According to the scheme, an automatic valve is connected between the ball float valve and the tap water pipe. The liquid tank is provided with an analog liquid level meter, and the analog liquid level meter and the automatic valve are connected with the controller by virtue of wires. The water supplementing of the liquid tank is controlled by an automatic valve and an analog liquid level meter. When the circulation pump is started, the liquid level in the liquid tank can be reduced. When the liquid level does not reach the low liquid level set value of the analog liquid level meter, the automatic water supplementing valve is not started, and water is not supplemented to the liquid tank. After a period of time, the spray liquid remained in the filler layer in the spray tower flows back into the liquid tank, so that the whole circulation loop is balanced. Therefore, due to the analog quantity liquid level meter, the automatic valve can be opened to supplement water for the liquid tank only when the liquid level in the liquid tank reaches the low liquid level set value of the analog quantity liquid level meter. Thus, not only is a large amount of water discharged after the machine is stopped avoided, and the workload of a subsequent waste water station is reduced, but also the waste of water resources is avoided.
Drawings
Fig. 1 is a schematic view of the structure of an exhaust gas purifying apparatus of the present utility model.
Detailed Description
As shown in fig. 1, the exhaust gas purifying apparatus of the present utility model includes a spray tower 1, a liquid tank 12, and a controller. The bottom of the spray tower 1 is communicated with the bottom of the liquid tank 12 through a water hole 13, and the top of the spray tower is connected with a circulating pump 3. The circulating pump 3 is connected with a controller by means of a wire. The bottom of the tank 12 is provided with a drain 15 which communicates with the inlet of the drain valve 11 by means of a pipe. A float valve 6 is arranged in the liquid tank 12. An automatic valve 8 is connected between the float valve 6 and the tap water pipe 14. The analog quantity liquid level meter 2 is arranged on the liquid tank 12, and the analog quantity liquid level meter 2 is connected with the controller by virtue of a wire.
Wherein an automatic valve 8 is arranged outside the water tank 12, and the automatic valve 8 is connected with a controller by a wire. Normal water replenishment is controlled by an automatic valve 8 and an analog level gauge 2.
A first manual valve 7 and a second manual valve 10 are respectively connected between the float valve 6 and the outlet of the automatic valve 8 and between the inlet of the automatic valve 8 and the tap water pipe 14.
The upper part of the inner cavity of the liquid tank 12 and the tap water pipe 14 are connected with a third manual valve 9.
An overflow port is formed at the top of the inner cavity of the liquid tank 12 and is communicated with the outlet of the drain valve 11 by a pipeline 16.
The liquid tank 12 is also provided with an electric conductivity meter 5 and a PH value meter 4.
In this embodiment, the controller is omitted for simplicity.
In operation, the circulation pump 3 is started first. When the circulation pump 3 is started, the liquid level in the liquid tank 12 decreases. When the liquid level does not reach the low level set point of the analog level gauge 2, the automatic valve 8 will not be started and the tank 12 will not be replenished. After a period of time, the spray liquid remaining in the packing layer in the spray tower 1 flows back into the liquid tank 12, so that the whole circulation loop is balanced. Therefore, due to the provision of the analog level gauge 2, the automatic valve 8 will only open to replenish the tank 12 when the liquid level in the tank 12 reaches the low level set point of the analog level gauge 2.
Claims (7)
1. An exhaust gas purification device comprises a spray tower (1), a liquid tank (12) and a controller; the spray tower (1) is communicated with the bottom of the liquid tank (12), and a circulating pump (3) is connected between the tops of the spray tower and the liquid tank; the circulating pump (3) is connected with the controller by a wire; the bottom of liquid case (12) has outlet (15) and drain valve (11), has ball float valve (6) in it, its characterized in that: an automatic valve (8) is connected between the ball float valve (6) and the tap water pipe (14); the liquid tank (12) is provided with an analog liquid level meter (2), and the analog liquid level meter (2) and the automatic valve (8) are connected with a controller by virtue of wires.
2. The exhaust gas purifying apparatus according to claim 1, characterized in that: a first manual valve (7) and a second manual valve (10) are respectively arranged between the float valve (6) and the outlet of the automatic valve (8) and between the inlet of the automatic valve (8) and the tap water pipe (14).
3. The exhaust gas purifying apparatus according to claim 1, characterized in that: a third manual valve (9) is arranged between the upper part of the inner cavity of the liquid tank (12) and the tap water pipe (14).
4. The exhaust gas purifying apparatus according to claim 1, characterized in that: an overflow port (17) is arranged at the top of the inner cavity of the liquid tank (12), and is communicated with the outlet of the drain valve (11) by virtue of a pipeline.
5. The exhaust gas purifying apparatus according to any one of claims 1 to 4, wherein: the liquid tank (12) is provided with an electric conductivity meter (5).
6. The exhaust gas purifying apparatus according to any one of claims 1 to 4, wherein: the liquid tank (12) is provided with a PH value table (4).
7. The exhaust gas purifying apparatus according to claim 5, wherein: the liquid tank (12) is provided with a PH value table (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223071382.6U CN218981056U (en) | 2022-11-20 | 2022-11-20 | Waste gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223071382.6U CN218981056U (en) | 2022-11-20 | 2022-11-20 | Waste gas purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218981056U true CN218981056U (en) | 2023-05-09 |
Family
ID=86217352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223071382.6U Active CN218981056U (en) | 2022-11-20 | 2022-11-20 | Waste gas purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218981056U (en) |
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2022
- 2022-11-20 CN CN202223071382.6U patent/CN218981056U/en active Active
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