CN214119698U - Water hammer eliminating device for water conveying pipeline for conveying polluted media - Google Patents
Water hammer eliminating device for water conveying pipeline for conveying polluted media Download PDFInfo
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- CN214119698U CN214119698U CN202022692505.2U CN202022692505U CN214119698U CN 214119698 U CN214119698 U CN 214119698U CN 202022692505 U CN202022692505 U CN 202022692505U CN 214119698 U CN214119698 U CN 214119698U
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Abstract
The utility model discloses a carry conduit water hammer remove device that has polluting medium has solved current conduit water hammer and has eliminated the problem that the pipeline is complicated, polluted environment, operating efficiency is low. The technical scheme includes that the device comprises a water conveying pipeline, wherein a high point of the water conveying pipeline is provided with an air inlet and outlet valve, a low point of the water conveying pipeline is connected with an inlet of a pressure expansion tank through a water drain pipeline, and the water drain pipeline is provided with a water drain valve; pipeline pressure sensors are arranged near the high point and the low point of the water pipeline, the pipeline pressure sensors are connected with the input end of the PLC, and the output end of the PLC is connected with the air inlet and outlet valve and the water drain valve respectively. The utility model discloses the structure is very simple, intelligent operation, need not manual operation, fail safe nature is high, no pollutant is arranged outward, friendly to the environment.
Description
Technical Field
The utility model relates to the field of pipelines, specific pipeline water hammer remove device who carries to have polluting medium that says so.
Background
Under the conditions of pump stopping, valve closing and the like of a water conveying pipeline, the water flow in a pipeline system can vibrate and surge, so that the instantaneous pressure in the pipeline along the system is caused to change violently, namely low negative pressure and high pressure, and the pipeline can be sunken and broken due to the phenomenon. Especially in long-distance water transmission pipelines, the pipelines are complicated to lay and long in length, and inconvenient to maintain and manage, and the elimination of the water hammer effect of the pipelines has great significance for safe production and operation. Meanwhile, the traditional water hammer eliminating system directly discharges the released liquid, and particularly, when polluted media are conveyed, facilities such as an accident pool and the like need to be built to store the released liquid, so that the environment is prevented from being polluted. However, the post-cleaning work intensity of facilities such as an accident pool is high, the labor cost is high, and secondary pollution cannot be completely avoided. In order to solve the problems, the environment pollution caused by the discharge of polluting media needs to be avoided when the water hammer is eliminated, and meanwhile, an intelligent control system is adopted, manual operation is not needed, and the safe and stable operation of the water conveying pipeline can be ensured.
Disclosure of Invention
The utility model aims at solving the technical problem, provide a structure is very simple, intelligent operation, need not manual operation, fail safe nature is high, no pollutant is arranged outward, has the conduit water hammer remove device of polluting the medium to environment friendly's transport.
The technical scheme includes that the device comprises a water conveying pipeline, wherein a high point of the water conveying pipeline is provided with an air inlet and outlet valve, a low point of the water conveying pipeline is connected with an inlet of a pressure expansion tank through a water drain pipeline, and the water drain pipeline is provided with a water drain valve; pipeline pressure sensors are arranged near the high point and the low point of the water pipeline, the pipeline pressure sensors are connected with the input end of the PLC, and the output end of the PLC is connected with the air inlet and outlet valve and the water drain valve respectively.
The outlet of the pressure expansion tank is connected with the water pipeline through a return pipeline, and a return pump is arranged on the return pipeline.
And the output end of the PLC is connected with a reflux pump.
A tank body pressure sensor is arranged on the pressure expansion tank, a water inlet valve and a water outlet valve are respectively arranged at the inlet and the outlet of the pressure expansion tank, and the tank body pressure sensor is connected with the input end of the PLC; and the output end of the PLC is respectively connected with the water inlet valve and the water outlet valve.
Has the advantages that:
1. the pipeline pressure sensors are arranged at the high point and the low point of the water delivery pipeline to realize online monitoring of pressure change in the water delivery pipeline, and the PLC control system is used for adjusting the opening and closing of the air inlet valve and the air outlet valve in a linkage manner, so that the purpose of reducing pipeline damage caused by abnormity of the water delivery system is achieved.
2. The sewage discharged by the drain valve is collected through the pressure expansion tank, the PLC control system realizes linkage pressure relief of the drain valve and the pressure expansion tank, the impact of pressure water on equipment and a pipeline is reduced, and the stability of the system is improved.
3. The utility model discloses a closed system, the pressure release contain polluting medium liquid can not arrange to external environment, but loopback to the hydraulic pipeline in through the backwash pump, realize environmental protection and resources are saved's dual function.
4. The utility model discloses simple structure, operation control are simple and convenient, can realize automatic pressure release, and no manual operation, safety and stability are good, whole no sewage discharge, friendly to the environment.
Drawings
Fig. 1 is a system diagram of the present invention.
Wherein, the device comprises 1-a water conveying pipeline, 2-a water drainage pipeline, 3-a backflow pipeline, 4-a PLC, 5-a pressure expansion tank, 6-an air inlet and outlet valve, 7-a water drainage valve, 8-a backflow pump, 9-a pipeline pressure sensor, 10-a tank pressure sensor, 11-an air inlet valve and 12-a water outlet valve.
Detailed Description
The invention will be further explained with reference to the drawings:
referring to fig. 1, an air inlet and outlet valve 6 is arranged at a high point of a water conveying pipeline 1, a low point of the water conveying pipeline 1 is connected with an inlet of a pressure expansion tank 5 through a drain pipeline 2, an outlet of the pressure expansion tank 5 is connected with the water conveying pipeline 1 through a return pipeline 3, a return pump 8 is arranged on the return pipeline 3, a drain valve 7 is arranged on the drain pipeline 2, and an inlet valve 11 and an outlet valve 12 are respectively arranged at the inlet and the outlet of the pressure expansion tank 5; pipeline pressure sensors 9 (which can be arranged near the valve) are arranged near the high point and the low point of the water conveying pipeline 1; a tank body pressure sensor 10 is arranged on the pressure expansion tank 5; the pipeline pressure sensors 9 and the tank pressure sensors 10 are respectively connected with the input end of a PLC4, and the output end of the PLC4 is respectively connected with the air inlet and outlet valve 6, the water outlet valve 7, the reflux pump 8, the water inlet valve 11 and the water outlet valve 12.
The linkage action of the air inlet and exhaust valve 6 and the drain valve 7 is automatically regulated and controlled by the PLC4 according to the pressure signal fed back by the pipeline pressure sensor 9; and the water discharged by the water discharge valve 7 is sent to the inside of the pressure expansion tank 5 through a pipeline to eliminate the water hammer effect. After the PLC4 monitors that the pressure of the water pipeline 1 is recovered to normal, the reflux pump 8 is started to return the released liquid containing the polluting medium to the water pipeline 1, the stored liquid in the pressure expansion tank 5 is removed, and the initial performance of the device is recovered.
The working principle is as follows:
when a water pump is suddenly stopped or a valve is closed in an emergency, and the pressure in the water conveying pipeline 1 is changed rapidly to generate water flow fluctuation (namely water hammer), the pipeline pressure sensor 9 sends the pipeline pressure value in the water conveying pipeline 1 to the PLC4, the PLC4 automatically adjusts the opening rates of the air inlet and exhaust valve 6 and the water escape valve 7 according to a set value after analysis, air enters from the air inlet and exhaust valve 6, sewage (containing polluted medium water) flows into the water escape pipeline 2 from the water escape valve 7, and the water flow fluctuation of the pipeline is relieved through the double functions of air inlet and water escape.
Sewage enters a pressure expansion tank 5 from a water drainage pipeline 2, when pressure water enters the pressure expansion tank 5, gas sealed in the tank is compressed, until a tank body pressure sensor 10 detects that the gas pressure in the pressure expansion tank 5 and the pressure of the water are balanced, a PLC4 controls a water drainage valve 7 and an air inlet and exhaust valve 6 to be closed, air inlet and water drainage are stopped, and water hammer elimination is achieved;
after the pressure sensor 9 monitors that the pressure in the water pipeline 1 tends to be stable, the PLC control system 4 closes the water drain valve 7, and the reflux pump 8 is started to feed back the liquid remained in the pressure expansion tank 5 to the water pipeline 1, so that the pollution of the environment by the discharge of the polluting medium is avoided.
Claims (4)
1. A water hammer eliminating device of a water conveying pipeline for conveying polluting media comprises a water conveying pipeline and is characterized in that a high point of the water conveying pipeline is provided with an air inlet and outlet valve, a low point of the water conveying pipeline is connected with an inlet of a pressure expansion tank through a water drainage pipeline, and the water drainage pipeline is provided with a water drainage valve; pipeline pressure sensors are arranged near the high point and the low point of the water pipeline, the pipeline pressure sensors are connected with the input end of the PLC, and the output end of the PLC is connected with the air inlet and outlet valve and the water drain valve respectively.
2. A water hammer removing device for a water pipeline conveying polluted media as claimed in claim 1, wherein an outlet of the pressure expansion tank is connected with the water pipeline through a return pipeline, and a return pump is arranged on the return pipeline.
3. The water hammer removing device for a water pipe conveying polluted media as claimed in claim 2, wherein an output end of the PLC is connected with a reflux pump.
4. The water hammer eliminating device for the water conveying pipeline conveying the polluting media as claimed in any one of claims 1 to 3, wherein a tank body pressure sensor is arranged on the pressure expansion tank, a water inlet valve and a water outlet valve are respectively arranged at an inlet and an outlet of the pressure expansion tank, and the tank body pressure sensor is connected with an input end of the PLC; and the output end of the PLC is respectively connected with the water inlet valve and the water outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022692505.2U CN214119698U (en) | 2020-11-19 | 2020-11-19 | Water hammer eliminating device for water conveying pipeline for conveying polluted media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022692505.2U CN214119698U (en) | 2020-11-19 | 2020-11-19 | Water hammer eliminating device for water conveying pipeline for conveying polluted media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214119698U true CN214119698U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022692505.2U Active CN214119698U (en) | 2020-11-19 | 2020-11-19 | Water hammer eliminating device for water conveying pipeline for conveying polluted media |
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| CN (1) | CN214119698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493092A (en) * | 2022-09-01 | 2022-12-20 | 云南大红山管道有限公司 | Long-distance large-pipe-diameter water delivery and transfer anti-leakage explosion-proof pipe monitoring system and method |
-
2020
- 2020-11-19 CN CN202022692505.2U patent/CN214119698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493092A (en) * | 2022-09-01 | 2022-12-20 | 云南大红山管道有限公司 | Long-distance large-pipe-diameter water delivery and transfer anti-leakage explosion-proof pipe monitoring system and method |
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