Pipeline pump transmission performance testing device

Abstract

The utility model discloses a pipeline pump transmission performance testing device, which belongs to the related technical field of pipeline pumps and comprises a pump body, an input connector and an output connector, the input connector and the output connector are communicated and connected with the pump body, a first connecting pipeline is mounted on one side of the input connector, and a second connecting pipeline is mounted on the other side of the output connector. A second connecting pipeline is installed at the end of the output connector, a valve seat is fixedly connected to the end, away from the pump body, of the first connecting pipeline, a valve frame is installed at the valve seat, a servo motor is installed at the top end of the valve frame, and the power output end of the servo motor is connected with a valve rod through a coupler. The valve rod penetrates through the valve seat and extends to the inner side of the first connecting pipeline, the flow of the first connecting pipeline can be checked in real time through the flow meter according to the opening degree of the valve plate, and the pressure difference between the first connecting pipeline and the second connecting pipeline can be observed through the pressure meter. The larger the pressure difference value is, the better the transmission performance of the pump body is.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline pumps, and more specifically, to a device for testing the transmission performance of pipeline pumps. Background Art

[0002] A pipeline pump is a type of single-suction single-stage or multi-stage centrifugal pump, which has a vertical structure. Because its inlet and outlet are on the same straight line and have the same diameter, it resembles a section of pipeline and can be installed at any position of the pipeline, so it is named pipeline pump (also known as booster pump). Structural characteristics: It is a single-suction single-stage centrifugal pump, with the same inlet and outlet on the same straight line and perpendicular to the axis center line, and it is a vertical pump.

[0003] An existing patent for a vertical pipeline pump, with the patent authorization number CN206338208U, includes a pump body, an impeller, a pump shaft, a pump cover and a motor, and also includes a mechanical seal gland, a connecting frame and a cartridge mechanical seal; the cartridge mechanical seal is wrapped around the pump shaft, the mechanical seal gland is fixedly connected to the pump cover and presses and fixes the cartridge mechanical seal, and the connecting frame is connected between the pump cover and the motor, which has the advantages of long service life, good sealing performance and convenient installation and maintenance.

[0004] During the working process of the existing pipeline pump, it is impossible to know the influence of the valve opening degree on the flow rate during the working process of the pump body, as well as the maximum flow rate of the pump body when the valve is at the maximum opening degree. Therefore, a device for testing the transmission performance of pipeline pumps is needed, so we propose a device for testing the transmission performance of pipeline pumps to solve the above existing problems. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a device for testing the transmission performance of pipeline pumps, which can utilize the opening degree of the valve plate, view the flow rate at the first connecting pipeline in real time by using a flow meter, and observe the pressure difference between the first connecting pipeline and the second connecting pipeline through a pressure gauge. The greater the pressure difference, the better the transmission performance of the pump body.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A device for testing the transmission performance of pipeline pumps includes a pump body, an input connector and an output connector that are conductively connected to the pump body, and a first connecting pipeline is installed on one side of the input connector;

[0010] The end of the output connector is installed with a second connecting pipeline;

[0011] One end of the first connecting pipe away from the pump body is fixedly connected with a valve seat. A valve frame is installed at the valve seat. A servo motor is installed at the top of the valve frame. The power output end of the servo motor is connected with a valve rod through a coupling. The valve rod penetrates through the valve seat and extends to the inside of the first connecting pipe. The bottom end of the valve rod is connected with a valve plate for sealing the first connecting pipe.

[0012] A control host is installed on the outer side wall of the valve frame.

[0013] A pressure sensor is installed on one side of the valve frame, and the detection end of the pressure sensor is located inside the first connecting pipe.

[0014] A flow meter is installed between the first connecting pipe and the input connector.

[0015] Furthermore, pressure gauges are installed on the outer walls of both the first connecting pipe and the second connecting pipe.

[0016] Furthermore, a bearing is installed at the combined part of the power output end of the servo motor and the top of the valve frame.

[0017] Furthermore, a rotary seal is installed at the connected part of the valve rod and the valve seat.

[0018] Furthermore, the output end of the pressure sensor is electrically connected to the input end of the control host, and the output end of the control host is electrically connected to the input end of the servo motor.

[0019] Furthermore, sealing washers are installed at the connection between the first connecting pipe and the flow meter, at the connection between the flow meter and the input connector, and at the connection between the second connecting pipe and the output connector.

[0020] Furthermore, the inner diameter of the first connecting pipe is the same as that of the second connecting pipe.

[0021] 3. Beneficial Effects

[0022] Compared with the prior art, the advantages of the present utility model are as follows:

[0023] (1) In this solution, by starting the pump body, the pressure sensor monitors the pressure in the first connecting pipe in real time. The control host receives the pressure data, combines the set multi-step pressure values, calculates the required valve plate opening adjustment amount, drives the valve rod to rotate in cooperation with the valve seat through the power output end of the servo motor, so as to adjust the opening of the valve plate. At the same time, the flow rate at the first connecting pipe is viewed in real time through the flow meter. After the valve plate reaches the maximum opening, the maximum flow rate during the operation of the pump body can be detected, and the fluid transmission performance of the pump body during the operation can be effectively detected.

[0024] (2) In this solution, during the operation of the pump body, low-pressure fluid is transported through the first connecting pipe. High-pressure fluid is generated during the extrusion of the fluid inside the pump body, and then it is output through the second connecting pipe. The pressure difference between the first connecting pipe and the second connecting pipe can be observed through the pressure gauge. The greater the pressure difference, the better the transmission performance of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0026] Figure 2 is an external structural schematic diagram of the first connecting pipe of the present utility model;

[0027] Figure 3 is a side view schematic diagram of the first connecting pipe of the present utility model;

[0028] Figure 4 is a sectional view schematic diagram of the A-A part of the first connecting pipe of the present utility model.

[0029] Description of the reference numerals in the drawings:

[0030] 1. Pump body; 2. Input connector; 3. Output connector; 4. First connecting pipe; 5. Second connecting pipe; 6. Pressure gauge; 7. Valve seat; 8. Valve frame; 9. Servo motor; 10. Valve rod; 11. Valve plate; 12. Control host; 13. Pressure sensor; 14. Flow meter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Embodiment:

[0033] Please refer to Figures 1-4 , a pipeline pump transmission performance test device, including a pump body 1 and an input connector 2 and an output connector 3 that are conductively connected to the pump body 1. A first connecting pipe 4 is installed on one side of the input connector 2;

[0034] A second connecting pipe 5 is installed at the end of the output connector 3;

[0035] One end of the first connecting pipe 4 away from the pump body 1 is fixedly connected with a valve seat 7. A valve frame 8 is installed at the valve seat 7. A servo motor 9 is installed at the top of the valve frame 8. The power output end of the servo motor 9 is connected with a valve rod 10 through a coupling. The valve rod 10 penetrates through the valve seat 7 and extends to the inside of the first connecting pipe 4. The bottom end of the valve rod 10 is connected with a valve plate 11 for sealing the first connecting pipe 4.

[0036] A control host 12 is installed on the outer side wall of the valve frame 8.

[0037] A pressure sensor 13 is installed on one side of the valve frame 8, and the detection end of the pressure sensor 13 is located inside the first connecting pipe 4.

[0038] A flow meter 14 is installed between the first connecting pipe 4 and the input connector 2.

[0039] It should be noted that when the pipeline pump transmission performance testing device is in use, by starting the pump body 1, the pressure sensor 13 monitors the pressure inside the first connecting pipe 4 in real time. The control host 12 receives the pressure data, calculates the required opening adjustment amount of the valve plate 11 in combination with the set multi-step pressure values, drives the valve rod 10 to rotate in cooperation with the valve seat 7 through the power output end of the servo motor 9, so as to adjust the opening of the valve plate 11. At the same time, the flow rate at the first connecting pipe 4 can be viewed in real time through the flow meter 14. After the valve plate 11 reaches the maximum opening, the maximum flow rate during the operation of the pump body 1 can be detected, and the transmission performance of the fluid during the operation of the pump body 1 can be effectively detected.

[0040] As Figure 1 shown, pressure gauges 6 are installed on the outer walls of both the first connecting pipe 4 and the second connecting pipe 5.

[0041] It should be noted that during the operation of the pump body 1, low-pressure fluid is transported through the first connecting pipe 4. High-pressure fluid is generated during the extrusion process of the fluid inside the pump body 1, and then output through the second connecting pipe 5. The pressure difference between the first connecting pipe 4 and the second connecting pipe 5 can be observed through the pressure gauge 6. The greater the pressure difference, the better the transmission performance of the pump body 1.

[0042] As Figure 4 shown, a bearing is installed at the combined part of the power output end of the servo motor 9 and the top of the valve frame 8, and a rotary seal is installed at the connecting part of the valve rod 10 and the valve seat 7.

[0043] It should be noted that while ensuring the rotation accuracy of the valve rod 10, the sealing effect of the connecting part between the valve rod 10 and the valve seat 7 is also ensured.

[0044] As Figure 2As shown, the output end of the pressure sensor 13 is electrically connected to the input end of the control host 12, and the output end of the control host 12 is electrically connected to the input end of the servo motor 9;

[0045] It should be noted that the model of the pressure sensor 13 can be selected as PT131, and the model of the control host 12 can be selected as J1900.

[0046] As Figure 1 shown, sealing washers are installed at the connection between the first connecting pipe 4 and the flow meter 14, at the connection between the flow meter 14 and the input connector 2, and at the connection between the second connecting pipe 5 and the output connector 3;

[0047] It should be noted that the sealing effect of the connection parts of each connecting component is ensured.

[0048] As Figure 1 shown, the inner diameter of the first connecting pipe 4 is the same as that of the second connecting pipe 5;

[0049] It should be noted that the consistency of the fluid flow rate in the first connecting pipe 4 and the second connecting pipe 5 during transportation is ensured, which is beneficial to the test of the transmission performance.

[0050] When in use: By turning on the pump body 1, the pressure sensor 13 monitors the pressure in the first connecting pipe 4 in real time. The control host 12 receives the pressure data, calculates the required opening adjustment amount of the valve plate 11 in combination with the set multi-step pressure values, drives the valve stem 10 to rotate in cooperation with the valve seat 7 through the power output end of the servo motor 9, so as to adjust the opening of the valve plate 11. At the same time, the flow rate at the first connecting pipe 4 is viewed in real time through the flow meter 14. After the valve plate 11 reaches the maximum opening, the maximum flow rate during the operation of the pump body 1 can be detected.

[0051] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pipeline pump transmission performance testing device, comprising a pump body (1) and an input connector (2) and an output connector (3) conductively connected to the pump body (1), characterized in that: A first connecting pipe (4) is installed on one side of the input connector (2); A second connecting pipe (5) is installed at the end of the output connector (3); The end of the first connecting pipe (4) away from the pump body (1) is fixedly connected to a valve seat (7), a valve frame (8) is installed at the valve seat (7), a servo motor (9) is installed at the top of the valve frame (8), the power output end of the servo motor (9) is connected to a valve stem (10) through a coupling, and the valve stem (10) passes through the valve seat (7) and extends to the inner side of the first connecting pipe (4), and the bottom end of the valve stem (10) is connected to a valve plate (11) for sealing the first connecting pipe (4); A control host (12) is installed on the outer side wall of the valve frame (8); A pressure sensor (13) is installed on one side of the valve frame (8), and a detection end of the pressure sensor (13) is located on the inner side of the first connecting pipe (4); A flow meter (14) is installed between the first connecting pipe (4) and the input connector (2).

2. The pipeline pump transmission performance testing device according to claim 1 is characterized in that: Pressure gauges (6) are installed on the outer walls of the first connecting pipe (4) and the second connecting pipe (5).

3. The pipeline pump transmission performance testing device according to claim 1 is characterized in that: A bearing is installed at the portion where the power output end of the servo motor (9) is combined with the top end of the valve frame (8).

4. The pipeline pump transmission performance testing device according to claim 1 is characterized in that: A rotating seal is installed at the portion where the valve stem (10) is connected to the valve seat (7).

5. The pipeline pump transmission performance testing device according to claim 1 is characterized in that: The output end of the pressure sensor (13) is electrically connected to the input end of the control host (12), and the output end of the control host (12) is electrically connected to the input end of the servo motor (9).

6. The pipeline pump transmission performance testing device according to claim 1 is characterized in that: Sealing gaskets are installed at the connection between the first connecting pipe (4) and the flow meter (14), the connection between the flow meter (14) and the input connector (2), and the connection between the second connecting pipe (5) and the output connector (3).

7. The pipeline pump transmission performance testing device according to claim 1 is characterized in that: The inner diameter of the first connecting pipe (4) is the same as the inner diameter of the second connecting pipe (5).

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