CN207363901U - A kind of anti-suction pump of oil solid control system - Google Patents

Abstract

The utility model is an anti-air suction pump for a petroleum solid phase control system. The device includes a pump body, an impeller, a motor, a vacuum breaking valve and a pipeline arranged in the pump body. An inlet and an outlet are arranged on the pump body. The inlet and the outlet are respectively connected with a water inlet pipe and an outlet pipe, wherein a vacuum breaker valve is arranged on the water inlet pipe, and the vacuum breaker valve is composed of a valve body, a sealing ring, and a supporting rod. The ring is in the valve body, and the sealing ring is slidably connected on the supporting rod. Advantages: Simple and effective to prevent the formation of vacuum and avoid burning the machine seal or motor. Reliable work, no power supply components, no power consumption, low manufacturing cost.

Description

Anti-cavitation suction pump for petroleum solid phase control system

technical field

The utility model belongs to the technical field of petroleum drilling and production equipment, in particular to an air defense suction pump for a petroleum solid phase control system.

Background technique

At present, the phenomenon of pump air suction in the field of oil drilling and production equipment has not been well resolved. This phenomenon is easy to cause the motor to burn out. Conventionally, it is only necessary to add priming liquid to prevent pump cavitation. Of course, even if priming liquid is added, pumping may occur, thereby burning the mechanical seal or motor.

Utility model content

The purpose of this utility model is to propose a simple and effective anti-aircraft suction pump for petroleum solid phase control system.

The technical scheme of the utility model is: an anti-air suction pump for petroleum solid phase control system, the device includes a pump body and an impeller, a motor, a vacuum breaking valve and a pipeline arranged in the pump body, and the pump body is provided with Inlet and outlet, the inlet and outlet are respectively connected with a water inlet pipe and an outlet pipe, wherein a vacuum breaker valve is arranged on the water inlet pipe, and the vacuum breaker valve is composed of a valve body, a sealing ring, and a supporting rod. The supporting rod and the sealing ring are in the valve body, and the sealing ring is slidably connected on the supporting rod.

As a further improvement of the utility model, the pipe connected with the vacuum breaking valve is a threaded pipe, and the lower part of the threaded pipe is connected with the flange and the butterfly valve.

As a preference of the present utility model, the vacuum breaking valve is set within a range of 0.5-1 meter from the elbow of the water inlet pipe.

The beneficial effect of the utility model is that the formation of vacuum is simply and effectively prevented, and the burning of the mechanical seal or the motor is avoided. The structure is simple, the work is reliable, not only can effectively retain enough working liquid, but also because there are no power supply parts and no power consumption, it is extremely difficult to damage. Manufacturing costs are also low.

Description of drawings

Fig. 1 is the structural representation of the utility model;

1-motor, 2-water outlet pipe, 3-vacuum breaker valve, 4-pump body, 5-water inlet pipe, 6-butterfly valve, 7-thread pipe.

Detailed ways

As shown in the figure, a kind of anti-cavitation pump for petroleum solid phase control system, the device includes a pump body 4 and an impeller, a motor 1, a vacuum breaker valve 3, and pipelines arranged in the pump body, and the pump body is provided with Inlet and outlet, the inlet and outlet are respectively connected with water inlet pipe 5 and water outlet pipe 2, wherein, a vacuum breaker valve 3 is arranged on the water inlet pipe 5, and the vacuum breaker valve 3 is composed of a valve body, a sealing ring, a support The rod is composed of three parts, the supporting rod and the sealing ring are in the valve body. The pipe connected with the vacuum breaking valve 3 is a threaded pipe 7, which is convenient for disassembly. The bottom of the threaded pipe 7 is connected with the flange and the butterfly valve 6 to prevent the vacuum breaking valve 3 from breaking down when the pump is working, and to cut it off in time.

When working, when there is no working medium at the suction port of the water inlet pipe 5, the system generates negative pressure, and the pressure difference between the atmospheric pressure and the system pressure acts on the sealing ring of the vacuum breaking valve 3, pushing the sealing ring of the vacuum breaking valve 3, and opening the sealing surface to expose the outside world. The air is introduced into the system to increase the system pressure and destroy the negative pressure until the vacuum breaks the valve seal 3 and the sealing ring drops again to seal, and the outside air no longer enters the system. When the system is under positive pressure, the working medium enters the upper part of the seal ring and presses down the seal ring. The greater the system pressure, the tighter the seal, ensuring that the vacuum breaker valve 3 does not leak water during positive pressure.

Further, the vacuum breaker valve 3 is set within a range of 0.5m-1m from the elbow of the water inlet pipe 5, so that it is closer to the liquid intake port and easier to break the vacuum.

Claims (3)

1. An anti-cavitation pump for petroleum solid phase control system, the device includes a pump body (4) and an impeller arranged in the pump body, a motor (1), a vacuum breaking valve (3), and pipelines. An inlet and an outlet are arranged on the upper part, and the inlet and outlet are respectively connected with a water inlet pipe (5) and a water outlet pipe (2), wherein a vacuum breaking valve (3) is arranged on the water inlet pipe (5), and the vacuum The destruction valve (3) is composed of a valve body, a sealing ring and a support rod. The support rod and the sealing ring are in the valve body, and the sealing ring is slidably connected on the support rod. 2. An anti-air suction pump for petroleum solid phase control system according to claim 1, characterized in that: the pipe connected to the vacuum breaking valve (3) is a threaded pipe (7), and the lower part of the threaded pipe (7) is connected to the Lan and butterfly valve (6) connection. 3. An anti-air suction pump for petroleum solid phase control system according to claim 1, characterized in that: the vacuum breaker valve (3) is set within the range of 0.5m-1m from the elbow of the water inlet pipe (5) .