Exhaust device for high-speed pump

Abstract

The utility model discloses an exhaust device for a high-speed pump, which comprises the high-speed pump, and a water inlet pipe, a water outlet pipe and an exhaust pipe are arranged on the high-speed pump. A water storage tank is connected to the water inlet pipe, a water storage pipe is arranged on the water storage tank, and the water storage pipe is higher than the water inlet pipe; a liquid level detection probe and an exhaust valve are arranged on the exhaust pipe; a PLC is arranged on the high-speed pump, the output end of the liquid level detection probe is connected with the input end of the PLC, and the output end of the PLC is connected with the exhaust valve and the input end of the high-speed pump. According to the high-speed pump, the water storage tank is arranged on the air inlet pipe, the water inlet pipe is lower than the water storage pipe, it can be guaranteed that air cannot enter the high-speed pump when the high-speed pump is shut down, the exhaust valve is arranged on the exhaust pipe, air in the high-speed pump can be automatically exhausted, faults caused by the air in the high-speed pump are avoided, and the service life of the high-speed pump is prolonged. And continuous, stable and efficient operation of the high-speed pump is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed pumps, and more specifically to an exhaust device for high-speed pumps. Background Art

[0002] High-speed pump, also known as high-speed partial flow pump, uses the speed increasing effect of the speed increasing box (first-stage speed increasing or second-stage speed increasing) to make the working impeller obtain a working speed several times that of the ordinary centrifugal pump impeller. It increases the impeller speed and increases the linear velocity of the fluid at the outer edge of the impeller to achieve the purpose of high head, eliminating most of the shortcomings of multi-stage pumps.

[0003] The high-speed pump needs to be vented before it is turned on to ensure that it can work normally and that no air can enter during use. However, in actual use, insufficient exhaust before turning it on results in gas in the high-speed pump, which can easily damage the seal or impeller of the high-speed pump. Moreover, during the operation of the high-speed pump, when the water source is short of water, gas will enter the high-speed pump through the water inlet pipe. When water is supplied again, the air in the high-speed pump needs to be emptied again before it can be used again, which will inevitably waste a lot of time and affect the working efficiency of the high-speed pump. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an exhaust device for a high-speed pump, which can automatically exhaust the high-speed pump and ensure that the high-speed pump can operate continuously and efficiently.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0006] An exhaust device for a high-speed pump comprises a high-speed pump, wherein the high-speed pump is provided with a water inlet pipe and a water outlet pipe for water inlet and outlet, and an exhaust pipe for exhaust; the water inlet pipe is connected to a water storage tank for storing water, the water storage tank is provided with a water storage pipe for water inlet, and the height of the water storage pipe is higher than that of the water inlet pipe; the exhaust pipe is provided with a liquid level detection probe for detecting whether there is gas in the exhaust pipe and an exhaust valve for exhaust; the high-speed pump is provided with a PLC controller for controlling exhaust, the output end of the liquid level detection probe is connected to the input end of the PLC controller, and the output end of the PLC controller is connected to the exhaust valve and the input end of the high-speed pump.

[0007] To further optimize the technical solution, a liquid level sensor for detecting the liquid level information in the water tank is arranged above the water inlet pipe in the water tank, and the output end of the liquid level sensor is connected to the input end of the PLC controller.

[0008] To further optimize the technical solution, a water inlet valve for controlling whether water is entering the water inlet pipe is provided, and the input end of the water inlet valve is connected to the output end of the PLC controller.

[0009] To further optimize the technical solution, the water tank is provided with a water replenishment pipe for replenishing water to the water tank, the water replenishment pipe is provided with a water replenishment valve for controlling the water replenishment, and the input end of the water replenishment valve is connected to the output end of the PLC controller.

[0010] To further optimize the technical solution, the PLC controller is provided with an alarm for issuing a shutdown alarm, and the input end of the alarm is connected to the output end of the PLC controller.

[0011] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0012] The utility model provides an exhaust device for a high-speed pump. By arranging a water storage tank on the air inlet pipe, and the height of the water inlet pipe is lower than the height of the water storage pipe, it can ensure that gas does not enter the high-speed pump when the high-speed pump is shut down. In addition, an exhaust valve is arranged on the exhaust pipe, which can automatically exhaust the gas in the high-speed pump, avoiding malfunctions of the high-speed pump caused by internal gas, and ensuring that the high-speed pump can operate continuously, stably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Among them: 1. high-speed pump, 2. exhaust pipe, 3. liquid level detection probe, 4. exhaust valve, 5. water inlet pipe, 6. water inlet valve, 7. water storage tank, 8. water storage pipe, 9. water supply pipe, 10. liquid level sensor, 11. PLC controller, 12. alarm, 13. water outlet pipe, 14. water supply valve. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] An exhaust device for a high-speed pump, combined with Figure 1 As shown, it includes a high-speed pump 1, on which a water inlet pipe 5, a water outlet pipe 13 and an exhaust pipe 2 are provided. The water inlet pipe 5 and the water outlet pipe 13 are used for the inlet and outlet of water, and the exhaust pipe 2 is used for exhausting the high-speed pump. The high-speed pump 1 is provided with a PLC controller 11 for controlling the exhaust.

[0017] The water inlet pipe 5 is connected to a water storage tank 7, and a water storage pipe 8 is arranged on the water storage tank 7. The height of the water storage pipe is higher than that of the water inlet pipe. The water in the water storage pipe first enters the water storage tank, and then enters the high-speed pump through the water inlet pipe, so as to prevent the gas extracted by the water storage pipe from entering the high-speed pump. The water inlet of the water storage tank is high and the water outlet is low. When the water source of the water storage pipe is short of water, the gas will not immediately enter the high-speed pump. When water is supplied again, it can be directly started without exhausting gas, thereby improving the working efficiency of the high-speed pump.

[0018] A liquid level sensor 10 is provided above the water inlet pipe 5 in the water storage tank 7 for detecting the liquid level information in the water storage tank. The output end of the liquid level sensor is connected to the input end of the PLC controller.

[0019] The water inlet pipe 5 is provided with a water inlet valve 6 for controlling whether the high-speed pump is fed with water. The input end of the water inlet valve is connected to the output end of the PLC controller.

[0020] The liquid level information in the water tank is detected by the liquid level sensor. When the liquid level sensor cannot detect the liquid level signal, the water inlet valve 6 is closed and the high-speed pump is closed at the same time to prevent the high-speed pump from taking in air, so as to facilitate the next start.

[0021] The water storage tank 7 is provided with a water supply pipe 9 for supplying water to the water storage tank. The water supply pipe 9 is provided with a water supply valve 14 for controlling whether to supply water. The input end of the water supply valve is connected to the output end of the PLC controller. When starting to use, water can be supplied through the water supply pipe, and the water supply valve is opened to supply water to the water storage tank. During the use of the high-speed pump, the outer end of the water supply pipe is not connected to the water source, and the water supply valve is opened to discharge the gas in the water storage tank to prevent the gas from entering the high-speed pump.

[0022] The exhaust pipe 2 is provided with a liquid level detection probe 3 and an exhaust valve 4. The liquid level detection probe is used to detect whether there is gas in the exhaust pipe, and the exhaust valve 4 is used to exhaust. The output end of the liquid level detection probe is connected to the input end of the PLC controller, and the output end of the PLC controller is connected to the input end of the exhaust valve. When the liquid level detection probe cannot detect the liquid level, it means that there is gas in the high-speed pump. At this time, the exhaust valve is opened to exhaust. During the gas discharge process, after the liquid level detection probe detects the liquid level, it means that the gas in the high-speed pump has been completely discharged, and the exhaust valve is closed.

[0023] The PLC controller 11 is provided with an alarm 12 for issuing a shutdown alarm, and the input end of the alarm is connected to the output end of the PLC controller. When the liquid level in the water storage tank decreases and causes the water inlet valve and the high-speed pump to be closed, the alarm sounds an alarm to prompt the staff to handle it in time.

[0024] When the utility model is working, the air in the vacuum pump is emptied through the exhaust valve. During the exhaust process, the water supply valve is opened to supply water to the water tank, the water in the water tank is opened, and the water inlet pipe is filled with water. When the liquid level detection probe in the drain pipe detects liquid, the gas is discharged, and the exhaust valve is closed to prevent outside air from entering the high-speed pump. When the high-speed pump is working, the water supply valve is closed and the high-speed pump is opened, and water enters the water tank through the water storage pipe and then enters the high-speed pump through the water inlet pipe, and is transported to the water use unit by the water outlet pipe. Since the height of the water inlet pipe is lower than that of the water storage pipe, the water inlet pipe can be effectively prevented from entering the water inlet pipe. When the liquid level in the water storage tank drops to the liquid level sensor, the water inlet valve and the high-speed pump are closed, and the alarm sounds an alarm at the same time to remind the staff that the high-speed pump is shut down due to the lowering of the liquid level, so as to prevent air from entering the high-speed pump and improve the use efficiency of the high-speed pump.

Claims

1. An exhaust device for a high-speed pump, comprising a high-speed pump (1), the high-speed pump (1) being provided with a water inlet pipe (5) and a water outlet pipe (13) for water inlet and outlet, and an exhaust pipe (2) for exhaust; characterized in that: The water inlet pipe (5) is connected to a water storage tank (7) for storing water, and the water storage tank (7) is provided with a water storage pipe (8) for water intake, and the height of the water storage pipe (8) is higher than the height of the water inlet pipe (5); the exhaust pipe (2) is provided with a liquid level detection probe (3) for detecting whether there is gas in the exhaust pipe and an exhaust valve (4) for exhausting gas; the high-speed pump (1) is provided with a PLC controller (11) for controlling exhaust, the output end of the liquid level detection probe is connected to the input end of the PLC controller, and the output end of the PLC controller is connected to the exhaust valve and the input end of the high-speed pump.

2. The high-speed pump exhaust device according to claim 1, characterized in that: A liquid level sensor (10) for detecting liquid level information in the water storage tank is arranged above the water inlet pipe (5) in the water storage tank (7), and the output end of the liquid level sensor is connected to the input end of the PLC controller.

3. The high-speed pump exhaust device according to claim 1, characterized in that: The water inlet pipe (5) is provided with a water inlet valve (6) for controlling whether water is inlet, and the input end of the water inlet valve is connected to the output end of the PLC controller.

4. The high-speed pump exhaust device according to claim 1, characterized in that: The water storage tank (7) is provided with a water replenishment pipe (9) for replenishing water to the water storage tank, and the water replenishment pipe is provided with a water replenishment valve (14) for controlling water replenishment, and the input end of the water replenishment valve is connected to the output end of the PLC controller.

5. The high-speed pump exhaust device according to claim 1, characterized in that: The PLC controller (11) is provided with an alarm (12) for issuing a shutdown alarm, and the input end of the alarm is connected to the output end of the PLC controller.

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