Static pressure testing device for centrifugal pump production

Abstract

The utility model discloses a static pressure test device for centrifugal pump production. The static pressure test device comprises a device shell, an input pressure pump and a test input pipeline, the utility model relates to the technical field of centrifugal pump production and detection, and the device is unique, adopts a centrifugal pump compatible reinforcing structure, aims to realize stable locking of different specifications of tested centrifugal pumps, can perform accurate static pressure test on the centrifugal pumps through a pump body test assembly, and is worthy of worthy of all. The device not only allows a user to flexibly adjust and maintain the pressure in the test centrifugal pump according to actual requirements, but also provides a rapid and convenient pressure reduction function in emergency, so that the safety of the test centrifugal pump body is greatly guaranteed, and the design not only remarkably improves the test efficiency, but also reduces the test cost. And powerful technical support and guarantee are provided for production of the centrifugal pump.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump production and testing technology, specifically a static pressure testing device for centrifugal pump production. Background Technology

[0002] A centrifugal pump is a pump that uses the centrifugal force generated by the rotation of an impeller to transport liquids. Its basic structure includes an impeller, pump body (also called pump casing), pump shaft, bearings, sealing rings, and stuffing box. During operation, the motor drives the impeller to rotate at high speed via the pump shaft, causing the liquid to undergo centrifugal motion, being thrown towards the outer edge of the impeller, and then flowing into the pressure water pipeline through the flow channel of the pump casing, thus achieving the purpose of transporting liquids. Static pressure refers to pressure that does not change with time. However, in reality, it is impossible for pressure to remain absolutely constant. Therefore, it is generally defined as a pressure change of less than 1% of the pressure gauge division value per second as static pressure. In the hydrostatic test of a centrifugal pump, the static pressure test is mainly used to test the static pressure performance of the centrifugal pump, that is, the pressure that the pump can withstand in a static state. This indicator is crucial for evaluating the quality and performance of the centrifugal pump. In the production process of centrifugal pumps, using a static pressure testing device to conduct hydrostatic tests is a very important step. The main purpose of this test is to verify the performance and quality of the centrifugal pump, ensuring that it meets the standard requirements. Through the static pressure test, the performance parameters of the centrifugal pump, such as head, flow rate, and power, can be evaluated, and its pressure resistance and corrosion resistance can also be tested. These test data help ensure the reliable performance and stability of the produced centrifugal pumps in practical applications. Currently, there is a significant lack of testing equipment for static pressure withstand capability in the centrifugal pump market. With the continuous improvement of centrifugal pump performance and increasingly stringent withstand requirements, traditional, inflexible testing equipment can no longer meet the needs of the highly competitive centrifugal pump manufacturing industry. Faced with this challenge, the industry's demand for efficient, accurate, and flexible testing equipment is becoming increasingly urgent. This equipment can not only accurately evaluate the performance of centrifugal pumps under high-pressure environments but also provide key data support in product development and quality control, ensuring the stability and reliability of centrifugal pumps. Therefore, to meet this urgent market demand, the industry needs to continuously invest in research and development and innovation to develop more advanced, efficient, and easy-to-operate testing equipment. This will not only help improve the overall performance and quality of centrifugal pump products but also give companies a greater competitive advantage in the fierce market competition. While existing technologies may already offer solutions to the above problems, this paper aims to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a static pressure testing device for centrifugal pump production, comprising: a device housing, an input pressurizing pump, and a test input pipeline, wherein the test input pipeline is installed on the input pressurizing pump and inserted into the device housing, a centrifugal pump compatible reinforcement structure is installed inside the device housing, and a pump body testing assembly is installed inside the device housing;

[0004] The centrifugal pump is compatible with a reinforced structure, including: a clamping motor, a motor bracket, a top clamping platform, a double-threaded rod, a pair of L-shaped clamping plates, a bottom push-position air rod, a test centrifugal pump, and a centrifugal pump support platform.

[0005] The clamping motor is mounted on the motor bracket, which is installed inside the device housing. The top clamping platform is installed inside the device housing. The double-threaded rod is installed inside the top clamping platform and connected to the clamping motor. A pair of L-shaped clamps are respectively fitted onto the double-threaded rod. A sliding groove is provided on the top clamping platform, and the pair of L-shaped clamps are respectively inserted into the top clamping platform through the sliding groove. The bottom push-position air rod is installed inside the device housing. The centrifugal pump support platform is installed on the bottom push-position air rod. The test centrifugal pump is installed on the centrifugal pump support platform and connected to the pair of L-shaped clamps.

[0006] It should be noted that, as described above, the bottom push rod inside the device housing can be extended and retracted via the operation panel on the device housing, thereby adjusting the centrifugal pump support platform to a suitable height. Then, the test centrifugal pump is placed in the pump body alignment slot on the centrifugal pump support platform. The clamping motor is then driven, and the clamping motor operates based on the motor bracket, causing the double-threaded rod inside the top clamping platform to rotate. This causes a pair of L-shaped clamps to move closer together until the test centrifugal pump is clamped and fixed. The protective silicone pads on the L-shaped clamps prevent damage to the surface of the test centrifugal pump. Afterward, the input pressure pump is driven to draw water from the source and enter the test centrifugal pump through the test input pipe, thereby performing a static pressure test on the test centrifugal pump.

[0007] Preferably, the pump body testing assembly includes: a pump body adapter, a safety test pump, a test pump body pipeline, a static pressure display meter, and a test tube adapter;

[0008] The pump body adapter is installed on the test input pipeline and is connected to the test centrifugal pump. The safety test pump is installed inside the device housing and is connected to the test pump body pipeline. The static pressure display is installed on the test pump body pipeline. The test tube adapter is installed on the test pump body pipeline and is connected to the test centrifugal pump.

[0009] It should be noted that, as described above, the pump body adapter connects the test input pipe and the test centrifugal pump, and the test pipe adapter connects the test centrifugal pump and the test pump body pipe. After the test centrifugal pump is fixed, the input booster pump draws water from the water source, which enters the test centrifugal pump through the test input pipe, then flows into the test pump body pipe, and is finally intercepted by the safety test pump, which delivers a reverse thrust, causing the water to stay in the test centrifugal pump and continuously pressurize. The pressure at this time will be displayed on the static pressure gauge. After the test is completed, the water in the test centrifugal pump is discharged to the outside through the emergency water outlet pipe set on the safety test pump. In case of emergency, the water can be discharged in an emergency through the safety test pump to avoid damage to the test centrifugal pump body.

[0010] Preferably, the device housing is provided with an operation panel;

[0011] Preferably, the safety test pump is equipped with an emergency water outlet pipe;

[0012] Preferably, a protective silicone pad is provided on the L-shaped clamp;

[0013] Preferably, the centrifugal pump support platform is provided with a pump body alignment slot. Beneficial effects

[0014] This utility model provides a static pressure testing device for centrifugal pump production. It offers the following advantages compared to existing technologies: This device features a unique centrifugal pump-compatible and reinforced structure, designed to securely lock centrifugal pumps of different specifications. Through the pump body testing components, it can perform precise static pressure tests on these pumps. More importantly, this device not only allows users to flexibly adjust and maintain the pressure inside the tested centrifugal pump according to actual needs, but also provides a rapid and convenient pressure reduction function in emergency situations, thus greatly ensuring the safety of the tested centrifugal pump body. This design not only significantly improves testing efficiency but also provides strong technical support and assurance for centrifugal pump production. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the static pressure testing device for centrifugal pump production described in this utility model.

[0016] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.

[0017] In the diagram: 1. Device housing; 2. Input pressurization pump; 3. Test input pipeline; 4. Clamping motor; 5. Motor bracket; 6. Top clamping platform; 7. Double-threaded rod; 8. L-shaped clamping plate; 9. Bottom push-position air rod; 10. Test centrifugal pump; 11. Centrifugal pump support platform; 12. Pump body adapter; 13. Safety test pump; 14. Test pump body pipeline; 15. Static pressure display meter; 16. Test pipe adapter. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0020] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a static pressure testing device for centrifugal pump production includes: a device housing 1, an input pressurizing pump 2, and a test input pipe 3. The test input pipe 3 is installed on the input pressurizing pump 2 and is inserted into the device housing 1. A centrifugal pump compatible reinforcement structure is installed inside the device housing 1, and a pump body testing assembly is installed inside the device housing 1. The centrifugal pump compatible reinforcement structure includes: a clamping motor 4, a motor bracket 5, a top clamping platform 6, a double-threaded rod 7, a pair of L-shaped clamps 8, a bottom push-position air rod 9, a test centrifugal pump 10, and a centrifugal pump support platform 11. The clamping motor 4 is installed on the motor bracket 5, and the motor bracket 5 is installed inside the device housing 1. The top clamping platform 6 is installed inside the device housing 1, and the double-threaded rod 7 is installed inside the top clamping platform 6 and connected to the clamping motor 4. A pair of L-shaped clamps 8 are respectively fitted onto the double-threaded rod 7. A sliding through groove is provided on the top clamping platform 6. A pair of L-shaped clamps 8 are respectively inserted into the top clamping platform 6 through the sliding through groove. The bottom push-position air rod 9 is installed inside the device housing 1. The centrifugal pump support platform 11 is installed on the bottom push-position air rod 9. The test centrifugal pump 10 is installed on the centrifugal pump support platform 11, and the test centrifugal pump 10 is connected to the pair of L-shaped clamps 8 respectively. The pump body test assembly includes: a pump body adapter 12, a safety test pump 13, a test pump body pipeline 14, and a static pressure display gauge 15. The device includes a test tube adapter 16; the pump body adapter 12 is installed on the test input pipe 3 and connected to the test centrifugal pump 10; the safety test pump 13 is installed inside the device housing 1 and connected to the test pump body pipe 14; the static pressure display 15 is installed on the test pump body pipe 14; the test tube adapter 16 is installed on the test pump body pipe 14 and connected to the test centrifugal pump 10.

[0021] According to the appendix Figure 1-2It is found that, through the operation panel provided on the device housing 1, the bottom push rod 9 inside the device housing 1 can be extended and retracted, thereby adjusting the centrifugal pump support platform 11 to a suitable height. Then, the test centrifugal pump 10 is placed in the pump body alignment slot on the centrifugal pump support platform 11. Then, the clamping motor 4 is driven, and the clamping motor 4 operates based on the motor bracket 5, thereby causing the double threaded rod 7 in the top clamping platform 6 to rotate, thereby causing a pair of L-shaped clamping plates 8 to move closer to each other until the test centrifugal pump 10 is clamped and fixed. The protective silicone pads provided on the L-shaped clamping plates 8 can prevent damage to the surface of the test centrifugal pump 10. Then, the input pressure pump 2 is driven to draw water from the source and enter the test centrifugal pump 10 through the test input pipe 3, thereby performing a static pressure test on the test centrifugal pump 10. Test: The pump body adapter 12 connects the test input pipe 3 and the test centrifugal pump 10, and the test pipe adapter 16 connects the test centrifugal pump 10 and the test pump body pipe 14. After the test centrifugal pump 10 is fixed, the input pressure pump 2 draws water from the water source and enters the test centrifugal pump 10 from the test input pipe 3. Then it flows into the test pump body pipe 14 and is finally intercepted by the safety test pump 13, which delivers a reverse thrust, causing the water to stay in the test centrifugal pump 10 and be continuously pressurized. The pressure at this time will be displayed on the static pressure display 15. After the test is completed, the water in the test centrifugal pump 10 is discharged to the outside through the emergency water outlet pipe set on the safety test pump 13. In case of emergency, the water can be discharged in an emergency through the safety test pump 13 to avoid damage to the pump body of the test centrifugal pump 10.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A static test device for centrifugal pump production, comprising: Device shell (1), input pressurization pump (2) and test input pipeline (3), characterized in that the test input pipeline (3) is installed on the input pressurization pump (2), and the test input pipeline (3) is inserted on the device shell (1), a centrifugal pump compatible reinforcing structure is installed in the device shell (1), and a pump body test assembly is installed in the device shell (1); The centrifugal pump compatible reinforcing structure comprises a clamping motor (4), a motor support (5), a top clamping table (6), a double-thread threaded rod (7), a pair of L-shaped clamping plates (8), a bottom layer push position air rod (9), a test centrifugal pump (10) and a centrifugal pump support table (11); The clamping motor (4) is installed on the motor support (5), the motor support (5) is installed in the device shell (1), the top clamping table (6) is installed in the device shell (1), the double-thread threaded rod (7) is installed in the top clamping table (6), and the double-thread threaded rod (7) is connected with the clamping motor (4), a pair of L-shaped clamping plates (8) are respectively sleeved on the double-thread threaded rod (7), a sliding through slot is formed in the top clamping table (6), and a pair of L-shaped clamping plates (8) are respectively inserted on the top clamping table (6) through the sliding through slot, the bottom layer push position air rod (9) is installed in the device shell (1), the centrifugal pump support table (11) is installed on the bottom layer push position air rod (9), the test centrifugal pump (10) is installed on the centrifugal pump support table (11), and the test centrifugal pump (10) is connected with a pair of L-shaped clamping plates (8).

2. The static test device for a centrifugal pump according to claim 1, wherein The pump body test assembly comprises a pump body adapter (12), an insurance test pump (13), a test pump body pipeline (14), a static pressure display table (15) and a measuring pipe adapter (16); The pump body adapter (12) is installed on the test input pipeline (3), and the pump body adapter (12) is connected with the test centrifugal pump (10), the insurance test pump (13) is installed in the device shell (1), and the insurance test pump (13) is connected with the test pump body pipeline (14), the static pressure display table (15) is installed on the test pump body pipeline (14), the measuring pipe adapter (16) is installed on the test pump body pipeline (14), and the measuring pipe adapter (16) is connected with the test centrifugal pump (10).

3. A static test device for centrifugal pumps according to claim 2, characterized in that, An operation panel is arranged on the device shell (1).

4. A static test device for centrifugal pumps according to claim 3, characterized in that An emergency water outlet pipeline is arranged on the insurance test pump (13).

5. A static test device for centrifugal pumps according to claim 4, characterized in that, A protective silica gel pad is arranged on the L-shaped clamping plate (8).

6. A static test device for centrifugal pumps according to claim 5, characterized in that A pump body alignment clamping groove is arranged on the centrifugal pump support table (11).

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