Gas-liquid booster pump with fault self-elimination function

Abstract

The utility model provides a gas-liquid booster pump with a fault self-elimination function. A pressure sensing part and a pressure relief electric control part are additionally arranged on the gas-liquid booster pump; the pressure sensing part is a pressure sensor mounted on a pump-out pipeline of a medium pump part of the gas-liquid booster pump; and the pressure relief electric control part is a reset pipeline provided with an electric control valve with two switch control valve positions, and is communicated with the pilot gas pipeline of the pneumatic control reversing valve. According to the technical scheme, the technical problem that the booster pump is stopped by a thief due to insufficient air intake or incomplete air exhaust of the large-area piston side of the pneumatic control reversing valve is effectively solved, the reset fault of the pneumatic control reversing valve is automatically eliminated, all tedious manual fault elimination is avoided, and the use efficiency of the gas-liquid booster pump is further improved.

Description

Technical Field

[0001] This patent application relates to gas-liquid booster pumps, and more particularly to a gas-liquid booster pump fault reset device. Background Technology

[0002] A pneumatic-liquid booster pump is a type of pump that achieves high-pressure liquid output by controlling the reciprocating direction of low-pressure gas. This direction control is achieved through a pneumatically controlled directional valve. These pumps play a crucial role in various fields such as high-pressure water systems, high-pressure water testing systems, and high-pressure chemical media transportation systems, and their applications are extremely widespread. The main technical problem with this type of pump is that after a period of operation, due to the long-term high-frequency switching of the pneumatically controlled directional valve, its sealing and lubrication capabilities decline to varying degrees. Furthermore, due to unstable on-site gas supply, the piston rod on the large-area piston side of the pneumatically controlled directional valve may stop in the middle position due to insufficient air intake or incomplete exhaust, causing the pneumatically controlled directional valve to fail to switch direction and resulting in the overall booster pump "intermittently stopping."

[0003] The current solution is to remove the pneumatic control reversing valve and the air supply pipeline to troubleshoot the problem. This is cumbersome, inefficient, and will seriously affect the working efficiency of the entire pumping system. Summary of the Invention

[0004] The purpose of this patent application is to eliminate the "sudden stop" of the overall pump caused by the pneumatic control directional valve, so as to enable the pneumatic control directional valve to automatically reset and eliminate the reset fault, and to provide a gas-liquid booster pump with fault self-elimination function.

[0005] The technical solution of the gas-liquid booster pump with self-troubleshooting function provided in this patent application is: a gas-liquid booster pump with self-troubleshooting function, wherein a pressure sensing part and a pressure relief electrical control part are added to the gas-liquid booster pump.

[0006] The pressure sensing part is a pressure sensor installed on the pump outlet pipeline of the medium pump section of the gas-liquid booster pump, and its transmission cable is electrically connected to the detection bus of the central control unit of the gas-liquid booster pump.

[0007] The pressure relief electrical control unit is equipped with a reset pipeline of an electrically controlled valve with two control valve positions, which is connected to the pilot air pipeline of the pneumatic directional valve. The electrically controlled valve is controlled and connected to an execution bus of the gas-liquid booster pump central control unit.

[0008] In one preferred embodiment of the above overall technical solution, the electrically controlled valve is a two-position three-way electrically controlled valve.

[0009] In one preferred embodiment of the above overall technical solution, the end cover of the medium pump section is provided with a reset air hole for external connection of the pneumatic control directional valve, and the reset air hole is connected to the pilot air line of the pneumatic control directional valve.

[0010] This patent application discloses a gas-liquid booster pump with self-troubleshooting function. It solves the technical problem of existing methods that require dismantling the pneumatic control directional valve and air supply line to eliminate the inability to switch directions properly due to insufficient air intake or incomplete exhaust on the large piston side of the pneumatic control directional valve, leading to the overall booster pump "interrupting." By monitoring the pump outlet pressure in real time, when the pressure continuously drops and reaches a preset critical value, the pressure relief valve is opened, typically for about 2 seconds, to remove residual gas from the pilot air chamber of the pneumatic control directional valve, forcing the valve to reset and autonomously return to normal operation. This technical solution automatically eliminates pneumatic control directional valve reset faults, avoiding all the tediousness of manual troubleshooting and improving the efficiency of the gas-liquid booster pump. Attached Figure Description

[0011] Figure 1 and Figure 2 These are the front view and the A-direction view of this gas-liquid booster pump, respectively.

[0012] Figure 3 This is a schematic diagram illustrating the principle structure of this patent application.

[0013] Figure 4 This is a structural diagram showing the connection between the pressure relief electrical control unit and the pneumatic reversing valve in this patent application. Detailed Implementation

[0014] The technical content of this gas-liquid booster pump with self-troubleshooting function will be described in detail below with reference to an embodiment shown in the accompanying drawings, and its application effect will be explained.

[0015] This gas-liquid booster pump has a self-troubleshooting function, such as Figure 1 As shown, this is a gas-liquid booster pump with the addition of a pressure sensing unit 3 and a pressure relief electrical control unit 4. The gas-liquid booster pump mainly includes a medium pump unit 1 and a pneumatically controlled directional valve 2 that drives the medium pump unit 1 to reciprocate.

[0016] The pressure sensing unit 3 is a pressure sensor installed on the pump outlet pipeline 5 of the medium pump unit to detect the output pressure of the pipeline pump. Its transmitter cable is electrically connected to the pressure detection bus of the gas-liquid booster pump central control unit. Although the central control unit is not shown in the figure, those skilled in the art can clearly understand the solution of this application through the description.

[0017] The pressure relief electrical control unit 4 is equipped with a reset pipeline of an electrically controlled valve 14 with two control positions. One end of this reset pipeline is open to the atmosphere, and the other end is connected to the pilot air pipeline 21 of the pneumatic directional valve 2. It is used to open the electrically controlled valve 14 when necessary to remove residual gas from the pilot air chamber 20 of the pneumatic directional valve 2, forcing the plunger of the pneumatic directional valve 2 to reset and autonomously enter the normal operating position. The electrically controlled valve 14 is controlled and connected to an execution bus of the central control unit of the gas-liquid booster pump, and its pipeline is opened or closed through this execution bus.

[0018] In this embodiment, the electrically controlled valve 14 is preferably a basic two-position three-way electrically controlled valve.

[0019] The troubleshooting process is as follows: During the operation of the gas-liquid booster pump, the central control unit of the gas-liquid booster pump monitors the pump output pressure of its pump outlet pipeline 5 in real time through the pressure sensor 3. When the pressure value is detected to be continuously decreasing and reaching the preset low threshold value, the program command controls the opening of the solenoid valve 14 to connect the reset pipeline to the atmosphere. The preferred opening time is 2 seconds, which quickly removes the residual gas in the pilot air chamber 20 of the pneumatic reversing valve 2, forcing the pneumatic reversing valve 2 to automatically reset and autonomously enter the normal working position, thus achieving the technical purpose of rapid and automatic troubleshooting.

[0020] In this embodiment, as Figure 1 As shown, a reset air hole 10 for external connection of pneumatic control directional valve 2 is provided on one side end cover 11 of the medium pump section 1. The reset air hole 10 is connected to the pilot air line 21 of the pneumatic control directional valve 2.

Claims

1. A gas-liquid booster pump with fault self-removal function, characterized in that, A pressure sensing part (3) and a pressure relief electric control part (4) are additionally arranged based on the gas-liquid booster pump; The pressure sensing part (3) is a pressure sensor installed on the pump-out pipeline (5) of the medium pump part (1) of the gas-liquid booster pump, and the transmission cable thereof is electrically connected with the detection bus of the central control unit of the gas-liquid booster pump; The pressure relief electric control part (4) is a reset pipeline equipped with an electric control valve (14) with two control valve positions, which is connected in communication with the pilot gas pipeline (21) of the gas control reversing valve, and the electric control valve (14) is controlled and connected to the execution bus of the central control unit of the gas-liquid booster pump.

2. The air liquid booster pump with a fault self-removal function according to claim 1, characterized in that, The electric control valve (14) is a two-position three-way electric control valve.

3. The gas-liquid booster pump having a failure self-removal function according to claim 1 or 2, characterized by, A reset gas hole (10) for externally connecting the gas control reversing valve (2) is arranged on the end cover of the medium pump part (1), and the reset gas hole (10) is connected in communication with the pilot gas pipeline (21) of the gas control reversing valve.

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