Water-ring vacuum pump inlet pressure detection system

Abstract

The utility model discloses a water ring vacuum pump inlet pressure detection system which comprises a controller, a water ring vacuum pump, a gas opening adjusting valve, a gas pressure detector and a liquid opening adjusting valve, the water ring vacuum pump is provided with a water inlet, a water outlet, a gas inlet and a gas outlet, the gas inlet is connected with a gas inlet pipe, and the gas outlet is connected with a gas outlet pipe. The gas opening adjusting valve is arranged on the gas inlet pipe, the gas inlet pipe is provided with a first pressure detection point and a second pressure detection point on the two sides of the gas opening adjusting valve respectively, the gas pressure detector is connected with the first pressure detection point and the second pressure detection point respectively, the water inlet is connected with a water supply pipe, and the water supply pipe is connected with a water outlet. The liquid opening adjusting valve is arranged on the water supply pipe, and the controller is electrically connected with the air pressure detector, the air opening adjusting valve and the liquid opening adjusting valve. The technical scheme is used for solving the problem that an existing water-ring vacuum pump is difficult to adjust according to actual air pressure working conditions.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum pumps, and in particular relates to an inlet pressure detection system for a water ring vacuum pump. Background Art

[0002] A water ring vacuum pump consists of an impeller, pump body, suction and exhaust ports, and auxiliary piping. The impeller is eccentrically mounted within the pump body. As the impeller rotates, centrifugal force throws water in all directions, forming a closed water ring similar in shape to the pump chamber. The outer surface of the water ring contacts the pump chamber, while the inner surface contacts the blades. Several crescent-shaped cavities are formed between the impeller hub and the water ring. As the impeller rotates clockwise, the volume of each small cavity increases due to the eccentric arrangement, and the pressure within the cavity continuously decreases. When the pressure drops below the pressure of the gas in the container being pumped, gas enters the small cavity from the suction port, marking the suction process. As the impeller continues to rotate, the volume within the small cavity gradually decreases, while the pressure continues to increase until the gas pressure exceeds the exhaust pressure, at which point the compressed gas is discharged from the exhaust port.

[0003] During the operation of a water ring vacuum pump, its operating status must be continuously monitored and water must be continuously supplied to the pump. The amount of water supplied determines the formation of the water ring. An appropriate amount of water supply ensures the stability of the water ring, thereby ensuring the normal compression and discharge of gas. If the water supply is insufficient, the water ring may not form effectively, causing the pump to malfunction; conversely, excessive water supply may cause unnecessary energy consumption. Existing water ring vacuum pumps typically rely solely on manual adjustment of the water supply to achieve the desired operating state, but this method generally fails to achieve good operating efficiency and does not adapt to changes in actual air pressure conditions. Utility Model Content

[0004] In response to the above-mentioned technical problems, the utility model provides a water ring vacuum pump inlet pressure detection system to solve the problem that the existing water ring vacuum pump is difficult to adjust according to the actual air pressure working conditions. The water ring vacuum pump inlet pressure detection system can adjust the water supply according to different working conditions to achieve better working efficiency.

[0005] The utility model provides an inlet pressure detection system for a water ring vacuum pump, comprising a controller, a water ring vacuum pump, a gas opening regulating valve, an air pressure detector and a liquid opening regulating valve, wherein the water ring vacuum pump is provided with a water inlet, a drain outlet, an air inlet and an air outlet, the air inlet is connected to an air inlet pipe, the gas opening regulating valve is arranged on the air inlet pipe, the air inlet pipe is respectively provided with a first pressure detection point and a second pressure detection point on both sides of the gas opening regulating valve, the air pressure detector is respectively connected to the first pressure detection point and the second pressure detection point, the water inlet is connected to a water supply pipe, the liquid opening regulating valve is arranged on the water supply pipe, and the controller is respectively electrically connected to the air pressure detector, the gas opening regulating valve and the liquid opening regulating valve.

[0006] Furthermore, the air outlet is provided with a third pressure detection point, and the air pressure detector is connected to the third pressure detection point.

[0007] Furthermore, the water ring vacuum pump is connected to a motor, and the controller is electrically connected to the motor.

[0008] During operation, this water ring vacuum pump inlet pressure detection system can detect the pressure differential across the gas opening control valve via the first and second pressure detection points, enabling more accurate monitoring of the water ring vacuum pump's status. Especially during extended operation, changes in the front-to-rear pressure values can promptly detect abnormalities in the vacuum pump's operation, ensuring proper operation of the vacuum pump. Furthermore, the controller adjusts and controls the liquid opening control valve based on the detected air pressure parameters, and further adjusts the water supply based on the data fed back by the air pressure detector, ensuring the water ring vacuum pump achieves optimal operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 This is a structural diagram of a water ring vacuum pump. DETAILED DESCRIPTION

[0011] The utility model discloses a water ring vacuum pump. An inlet pressure detection system of the water ring vacuum pump can adjust the water supply according to different working conditions to achieve better working efficiency.

[0012] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0013] See also Figure 1 As shown, the utility model discloses a water ring vacuum pump inlet pressure detection system, including a controller 1, a water ring vacuum pump 12, a gas opening regulating valve 5, an air pressure detector 2 and a liquid opening regulating valve 9, the water ring vacuum pump 12 is provided with a water inlet 11, a drain port 13, an air inlet 7 and an air outlet 10, the air inlet 7 is connected to the air inlet pipe 4, the gas opening regulating valve is arranged on the air inlet pipe 4, the air inlet pipe 4 is respectively provided with a first pressure detection point 3 and a second pressure detection point 6 on both sides of the gas opening regulating valve 5, the air pressure detector 2 is respectively connected to the first pressure detection point 3 and the second pressure detection point 6, the water inlet 11 is connected to the water supply pipe 8, the liquid opening regulating valve 9 is arranged on the water supply pipe 8, and the controller 1 is electrically connected to the air pressure detector 2, the gas opening regulating valve 5 and the liquid opening regulating valve 9.

[0014] The air outlet 10 is provided with a third pressure detection point, and the air pressure detector is connected to the third pressure detection point.

[0015] The water ring vacuum pump 12 is connected to a motor, and the controller 1 is electrically connected to the motor.

[0016] When the inlet pressure detection system of the water ring vacuum pump 12 is in operation, it can detect the pressure difference before and after the gas opening control valve 5 through the first pressure detection point 3 and the second pressure detection point 6, which can more accurately monitor the status of the water ring vacuum pump. In particular, when the water ring vacuum pump is running for a long time, the changes in the pressure values before and after can promptly detect abnormal operation of the vacuum pump, thus ensuring the normal operation of the vacuum pump equipment. Furthermore, the controller 1 adjusts and controls the liquid opening control valve 9 based on the detected air pressure parameters, and further adjusts the water supply based on the data fed back by the air pressure detector 2, so that the water ring vacuum pump 12 reaches the optimal operating state.

[0017] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A water ring vacuum pump inlet pressure detection system, characterized in that: It includes a controller, a water ring vacuum pump, a gas opening regulating valve, an air pressure detector and a liquid opening regulating valve. The water ring vacuum pump is provided with a water inlet, a drain outlet, an air inlet and an air outlet. The air inlet is connected to an air inlet pipe. The gas opening regulating valve is arranged on the air inlet pipe. The air inlet pipe is respectively provided with a first pressure detection point and a second pressure detection point on both sides of the gas opening regulating valve. The air pressure detector is respectively connected to the first pressure detection point and the second pressure detection point. The water inlet is connected to a water supply pipe. The liquid opening regulating valve is arranged on the water supply pipe. The controller is electrically connected to the air pressure detector, the gas opening regulating valve and the liquid opening regulating valve.

2. A water ring vacuum pump inlet pressure detection system according to claim 1, characterized in that: The air outlet is provided with a third pressure detection point, and the air pressure detector is connected to the third pressure detection point.

3. A water ring vacuum pump inlet pressure detection system according to claim 1, characterized in that: The water ring vacuum pump is connected to a motor, and the controller is electrically connected to the motor.

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