Plunger pump air tightness detection device

Abstract

The utility model relates to a plunger pump air tightness detection device, and belongs to the technical field of plunger pump air tightness detection. The air tightness detection device for the plunger pump comprises a metal plate base, the air inlet valve is arranged on the metal plate base, and the air inlet valve is connected with an external air source; the shunting block is arranged on the metal plate base, the shunting block comprises a plurality of groups of test gas inlets and test gas outlets, the shunting block receives gas provided by the gas inlet valve, and a group of test gas inlets and test gas outlets provide test gas for a plunger pump to be detected; and the exhaust valve is communicated with the shunting block, and after the test gas flows through the plunger pump to be tested, the test gas flows back to the shunting block and is emptied from the exhaust valve. The device is not only suitable for the field of medical equipment detection, but also can be expanded to other occasions where the air tightness of the plunger pump needs to be detected, and the detection efficiency is remarkably improved by optimizing the detection process.

Description

Technical Field

[0001] This utility model relates to the field of plunger pump air tightness testing technology, and in particular to a high-efficiency testing device that can simultaneously test the air tightness of multiple plunger pumps. Background Technology

[0002] As a key component of medical devices and hydraulic systems, the airtightness of plunger pumps is crucial for ensuring stable system operation. However, existing plunger pump airtightness testing equipment has several shortcomings. First, the testing efficiency is low, typically only allowing for individual pump testing, which cannot meet the rapid testing needs of large-scale production lines. Second, the operation process is complex, requiring manual connection of multiple components such as the plunger pump, external air source, and equipment base for different testing conditions. This is not only time-consuming and labor-intensive but also prone to operational errors. Furthermore, it lacks sufficient safety protection measures; for example, it cannot release pressure in a timely manner when the internal air pressure is too high, which could lead to equipment damage or personnel injury.

[0003] Although some improved plunger pump airtightness testing devices have emerged on the market, they still have some shortcomings. For example, some devices, while employing multi-channel detection technology, suffer from insufficient detection accuracy due to unreasonable flow divider design; some devices, while simplifying the connection process, have unstable quality quick couplings that are prone to leakage; and some devices, although equipped with safety valves, have slow response times and cannot protect the equipment from damage in a timely manner. Therefore, there is an urgent need for a high-efficiency plunger pump airtightness testing device that can effectively solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a plunger pump air tightness testing device, which can not only perform air tightness testing on multiple plunger pumps at the same time, shorten the testing operation time, but also enhance the safety of the testing process.

[0005] To achieve the above-mentioned technical effects, this utility model employs a plunger pump airtightness testing device, including...

[0006] Sheet metal base;

[0007] An intake valve is mounted on the sheet metal base and is connected to an external air source.

[0008] A flow divider block is disposed on the sheet metal base. The flow divider block includes multiple sets of test air inlets and test air outlets. The flow divider block receives the gas provided by the air inlet valve and provides test gas to a plunger pump to be tested through a set of test air inlets and test air outlets.

[0009] An exhaust valve is connected to the flow divider block, and when the test gas flows through the plunger pump under test, it flows back to the flow divider block and is discharged from the exhaust valve.

[0010] A measuring instrument is connected to the flow divider block. Before supplying test gas to the plunger pump to be tested, the measuring instrument monitors the pressure of the test gas flowing through the flow divider block and reflects the airtightness of the gas path of the testing device based on the test results.

[0011] Furthermore, the diverter block also includes a main air inlet and a main exhaust outlet, the main air inlet being connected to the intake valve and the main exhaust outlet being connected to the exhaust valve.

[0012] Furthermore, the multiple sets of test air inlets are connected to the main air inlet inside the splitter block, and the test gas enters from the main air inlet and is supplied to the multiple sets of test air inlets.

[0013] Furthermore, multiple sets of test outlets are connected to the main exhaust port inside the splitter block, and the test gas flows back from the plunger pump to be tested to the test outlet and is then discharged from the main exhaust port.

[0014] Furthermore, each set of test air inlets and test air outlets is equipped with a connector.

[0015] Furthermore, it also includes a safety valve, which has a pressure threshold. The safety valve is connected to the air inlet valve. When the air inlet valve is filled with too much gas from an external air source, causing the air pressure inside the device to exceed the pressure threshold, the safety valve is passively opened to release the gas.

[0016] Furthermore, the measuring instrument is fixed to the sheet metal base using a first metal bracket.

[0017] Furthermore, the intake valve is fixed to the sheet metal base using a second metal bracket for the input and shut-off of external air source.

[0018] Furthermore, the exhaust valve is fixed to the sheet metal base using a third metal bracket, which is used to release the internal pressure of the plunger pump after the airtightness test is completed.

[0019] Furthermore, the sheet metal base is used to fix the various components, and the bottom of the sheet metal base is provided with support feet.

[0020] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0021] This plunger pump airtightness testing device, with its sheet metal base, provides a solid and reliable mounting platform for all components, ensuring the relative positions of each component remain stable during operation and effectively avoiding testing errors caused by component loosening or displacement. The intake valve allows connection to an external air source, providing a stable and reliable air supply foundation for subsequent plunger pump airtightness testing. The flow divider allows the device to simultaneously or sequentially test multiple plunger pumps, greatly improving testing efficiency and meeting batch testing needs. The exhaust valve enables rapid air venting, ensuring air tightness. The efficient connection of the fault detection process allows for the rapid commencement of the next round of testing, ensuring accurate and error-free results. The pressure monitoring function, achieved through the setting of measuring instruments, provides reliable data references for the plunger pump's airtightness testing, ensuring the authenticity and reliability of the test results. Connecting the main air inlet to the air inlet valve centrally integrates the air intake, facilitating unified control of the gas distribution path and flow rate. This ensures uniform and stable air intake across multiple test inlets, avoiding detection errors caused by uneven air intake. Connecting the main exhaust port to the exhaust valve allows for rapid and efficient exhaust after the test gas has completed the plunger pump testing process. The reflux gas is vented to ensure unobstructed air circulation within the testing device, preventing residual gas from interfering with subsequent testing processes and ensuring that each test is performed in its initial state. Each set of test inlets and outlets is equipped with a connecting pipe, serving as a transition point. This facilitates easier and more secure installation of the pipeline connecting to the plunger pump, ensuring no leakage during gas transmission due to loose connections. This improves the sealing and reliability of the connection between the testing device and the plunger pump, thereby guaranteeing the airtightness of the entire testing process and reducing testing errors caused by connection problems. The safety valve is designed to set a pressure threshold. If an external air source accidentally or due to operational error injects too much gas into the inlet valve, causing the internal pressure of the device to exceed the threshold, the safety valve will automatically open to release the gas. This prevents damage to components caused by excessive pressure, such as pipe rupture or valve malfunction, effectively protecting the safety of the entire testing device and the operators. It also ensures the smooth operation of the testing work. The sheet metal base has feet at the bottom to maintain a certain distance between the device and the surface it is placed on, preventing moisture and corrosion at the bottom and extending the service life of the device. At the same time, it provides stable support for the device. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is a three-dimensional schematic diagram of a plunger pump airtightness testing device according to a specific embodiment of this utility model.

[0024] Figure 2 This is a three-dimensional schematic diagram of the flow divider block of the plunger pump airtightness testing device according to a specific embodiment of this utility model.

[0025] Figure 3 This is a perspective three-dimensional schematic diagram of the flow divider block of the plunger pump airtightness testing device according to a specific embodiment of this utility model.

[0026] Explanation of reference numerals in the instruction manual: 1. Sheet metal base; 11. Support leg; 2. Safety valve; 3. Inlet valve; 31. Second metal bracket; 4. Diverter block; 41. Test inlet; 42. Test outlet; 43. Main inlet; 44. Main exhaust outlet; 5. Measuring gauge; 51. First metal bracket; 6. Exhaust valve; 61. Third metal bracket; 7. Connecting pipe. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0028] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] like Figures 1-3 As shown, this utility model provides a plunger pump airtightness testing device, including...

[0030] Sheet metal base 1 provides a solid and reliable mounting platform for each component, ensuring that the relative position of each component remains stable during operation and effectively avoiding detection errors caused by component loosening or displacement.

[0031] The intake valve 3 is set on the sheet metal base 1. The intake valve 3 is connected to an external air source. By setting the intake valve 3, the connection to the external air source is realized, providing a stable and reliable air source foundation for the subsequent plunger pump air tightness test.

[0032] The flow divider 4 is mounted on the sheet metal base 1. The flow divider 4 includes multiple sets of test air inlets 41 and test air outlets 42. The flow divider 4 receives the gas provided by the air inlet valve 3 and provides test gas to a plunger pump to be tested through a set of test air inlets 41 and test air outlets 42. By setting the flow divider 4, the device is given the ability to test multiple plunger pumps simultaneously or sequentially, which greatly improves the testing efficiency and meets the batch testing requirements.

[0033] The exhaust valve 6 is connected to the flow divider block 4. When the test gas flows through the plunger pump to be tested, it flows back to the flow divider block 4 and is discharged from the exhaust valve 6. The exhaust valve 6 can quickly discharge the gas, which not only ensures the efficient connection of the testing process, but also allows the next round of testing to be carried out quickly, ensuring that the test results are accurate.

[0034] Measuring gauge 5 is connected to the flow divider block 4. Before supplying test gas to the plunger pump to be tested, measuring gauge 5 monitors the pressure of the test gas flowing through the flow divider block 4 and reflects the airtightness of the gas path part of the testing device based on the test results. By setting measuring gauge 5, the pressure monitoring function is realized, providing reliable data reference for the airtightness test of the plunger pump and ensuring that the test results are true and credible.

[0035] The diversion block 4 also includes a main air inlet 43 and a main exhaust outlet 44. The main air inlet 43 is connected to the intake valve 3, and the main exhaust outlet 44 is connected to the exhaust valve 6. By connecting the intake valve 3 through the main air inlet 43, the intake is centralized and integrated, which facilitates unified control of the gas distribution path and flow rate, ensuring uniform and stable intake of multiple test air inlets 41, and avoiding detection errors caused by uneven intake. By connecting the exhaust valve 6 through the main exhaust outlet 44, the backflow gas can be quickly and efficiently vented after the test gas completes the test process on the plunger pump, ensuring unobstructed circulation of the internal gas path of the detection device, avoiding residual gas from interfering with the subsequent detection process, and ensuring that each test can be performed in the initial state.

[0036] Among them, multiple sets of test air inlets 41 are connected to the main air inlet 43 inside the splitter block 4. After the test gas enters from the main air inlet 43, it is supplied to the multiple sets of test air inlets 41.

[0037] Among them, multiple test outlets 42 are connected to the main exhaust port 44 inside the diverter block 4. The test gas flows back from the plunger pump to be tested to the test outlets 42 and is then discharged from the main exhaust port 44.

[0038] Each set of test inlet 41 and test outlet 42 is equipped with a connector 7 at one end. The connector 7 serves as a connection transition, making the installation of the pipeline connected to the plunger pump more convenient and stable. It ensures that there will be no leakage due to loose connection during gas transmission, improves the sealing and reliability of the connection between the detection device and the plunger pump, and thus ensures the airtightness of the entire detection process and reduces detection errors caused by connection problems.

[0039] This also includes a safety valve 2, which has a pressure threshold. The safety valve 2 is connected to the air inlet valve 3. When the air inlet valve 3 is filled with too much gas from an external air source, causing the air pressure inside the device to exceed the pressure threshold, the safety valve 2 will passively open to release the gas. By setting the safety valve 2, a pressure threshold setting function is achieved. When the external air source fills the air inlet valve 3 with too much gas due to accident or operational error, causing the air pressure inside the device to exceed the threshold, the safety valve 2 will automatically open to release the gas, preventing damage to components caused by excessive air pressure, such as pipe rupture or valve malfunction. This effectively protects the safety of the entire testing device and the operators, ensuring the safety of the testing work.

[0040] The measuring instrument 5 is fixed to the sheet metal base 1 using the first metal bracket 51. By fixing the measuring instrument 5 to the sheet metal base 1 using the first metal bracket 51, it can be installed stably and the accuracy of the measurement data can be improved.

[0041] The intake valve 3 is fixed to the sheet metal base 1 using a second metal bracket 31. It is used for the input and shut-off of external air source. By fixing the intake valve 3 to the sheet metal base 1 using the second metal bracket 31, the stability of the intake valve 3 during device operation is enhanced, and gas leakage or unstable intake is avoided due to valve loosening.

[0042] The exhaust valve 6 is fixed to the sheet metal base 1 using a third metal bracket 61. It is used to release the internal pressure of the plunger pump after the airtightness test. The exhaust valve 6 is fixed to the sheet metal base 1 using the third metal bracket 61 to ensure that the exhaust valve 6 is fixed in position and that the exhaust is stable and reliable.

[0043] The sheet metal base 1 is used to fix the various components. The bottom of the sheet metal base 1 is provided with support legs 11. By providing support legs 11 at the bottom of the sheet metal base 1, the device is kept at a certain distance from the placement surface, which prevents the bottom from getting damp and corroded, extends the service life of the device, and provides stable support for the device.

[0044] Specifically, the working principle of this plunger pump airtightness testing device is as follows: When an airtightness test of a plunger pump is required, the plunger pump is connected to the flow divider block 4 through the connecting pipe 7. The flow divider block 4 has multiple sets of connecting pipes 7. Each plunger pump airtightness test requires two connecting pipes 7. If only one flow needs to be used, the other connecting pipes 7 can be blocked with plugs to allow the plunger pump to be connected. After the plunger pump to be tested is connected, the external air source is connected to the safety valve 2, and the exhaust valve 6 is closed. At this time, the pressure on the measuring gauge 5 will rise. The function of the safety valve 2 is... To prevent excessive pressure from damaging the plunger pump, during this process, when the pressure on gauge 5 reaches the holding pressure required for the plunger pump's airtightness test, close the inlet valve 3, remove the external air source, and observe the reading on gauge 5. If the pressure drop does not exceed the required range within a certain time, the airtightness is considered to be up to standard. After the airtightness test is completed, first open the exhaust valve 6 to release the internal pressure of the plunger pump, and then remove the plunger pump connected to the flow divider block 4. The airtightness testing device is now in use, and the next batch of plunger pumps can be tested for airtightness.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A plunger pump airtightness testing device, characterized in that, include Sheet metal base (1); An intake valve (3) is provided on the sheet metal base (1), and the intake valve (3) is connected to an external air source; A flow divider block (4) is disposed on the sheet metal base (1). The flow divider block (4) includes multiple sets of test air inlets (41) and test air outlets (42). The flow divider block (4) receives the gas provided by the air inlet valve (3) and provides test gas to a plunger pump to be tested through a set of test air inlets (41) and test air outlets (42). The exhaust valve (6) is connected to the flow divider block (4), and when the test gas flows through the plunger pump to be tested, it flows back to the flow divider block (4) and is discharged from the exhaust valve (6); The measuring instrument (5) is connected to the flow divider (4). Before supplying test gas to the plunger pump to be tested, the measuring instrument (5) monitors the pressure of the test gas flowing through the flow divider (4) and reflects the airtightness of the gas path of the testing device based on the test results.

2. The plunger pump airtightness testing device according to claim 1, characterized in that: The diverter block (4) also includes a main air inlet (43) and a main exhaust outlet (44), the main air inlet (43) being connected to the intake valve (3) and the main exhaust outlet (44) being connected to the exhaust valve (6).

3. The plunger pump airtightness testing device according to claim 2, characterized in that: Multiple sets of test air inlets (41) are connected to the main air inlet (43) inside the splitter block (4). The test gas enters from the main air inlet (43) and is supplied to the multiple sets of test air inlets (41).

4. The plunger pump airtightness testing device according to claim 2, characterized in that: Multiple sets of the test outlets (42) are connected to the main exhaust port (44) inside the splitter block (4). The test gas flows back from the plunger pump to be tested to the test outlets (42) and is then discharged from the main exhaust port (44).

5. The plunger pump airtightness testing device according to claim 2, characterized in that, Each set of test inlet (41) and test outlet (42) is equipped with a connector (7).

6. The plunger pump airtightness testing device according to claim 1, characterized in that, It also includes a safety valve (2), which has a pressure threshold. The safety valve (2) is connected to the air inlet valve (3). When the air inlet valve (3) is filled with too much gas by an external air source, causing the air pressure inside the device to exceed the pressure threshold, the safety valve (2) is passively opened to release the gas.

7. The plunger pump airtightness testing device according to claim 1, characterized in that, The measuring instrument (5) is fixed to the sheet metal base (1) using a first metal bracket (51).

8. The plunger pump airtightness testing device according to claim 1, characterized in that, The intake valve (3) is fixed to the sheet metal base (1) using a second metal bracket (31) for the input and shut-off of external air source.

9. The plunger pump airtightness testing device according to claim 1, characterized in that, The exhaust valve (6) is fixed to the sheet metal base (1) using a third metal bracket (61) to release the internal pressure of the plunger pump after the airtightness test is completed.

10. The plunger pump airtightness testing device according to claim 1, characterized in that, The sheet metal base (1) is used to fix various components, and the bottom of the sheet metal base (1) is provided with support feet (11).

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