Detection device for filter element with bypass valve

Abstract

The utility model is applicable to the field of detection of filter elements with bypass valves, and particularly relates to a detection device of a filter element with a bypass valve, which comprises an oil tank, two sides of the outer side of the oil tank are respectively connected with a recovery pipeline and an oil pumping pipe, one end of the oil pumping pipe far away from the oil tank is connected with an oil scavenger pump, and the outer side of the oil scavenger pump is connected with a first communicating pipeline. According to the utility model, the oil tank, the oil return pump, the oil supply valve, the liquid storage tank, the stop valve, the pressure sensor, the booster pump, the recovery pipeline, the first communicating pipeline, the second communicating pipeline and the third communicating pipeline are arranged, so that a filter element and a bypass valve in a simulated blocking state can be tested in a high-automation-degree manner; the pressure bearing critical value of the bypass valve can be accurately and clearly obtained, the tested test engine oil can be effectively recycled and put into test use again, waste of the test engine oil is avoided, and therefore the practicability of the detection device for the filter element with the bypass valve is improved.

Description

Technical Field

[0001] The utility model relates to the field of filter element detection with a bypass valve, in particular to a detection device for a filter element with a bypass valve. Background Art

[0002] In modern automobile engines, the filter element and its supporting bypass valve play a vital role, especially in the oil filtration system. The filter element is used to remove impurities in the oil to ensure the cleanliness of the lubrication system, while the bypass valve plays a role when the filter element cannot work properly due to impurities blocking. When the filter element is blocked to a certain extent, the bypass valve will open, allowing the oil to flow directly around the filter element, ensuring that the lubrication of the engine is not affected and preventing the problem of insufficient lubrication caused by the filter element blocking.

[0003] However, the function and performance testing of filter elements and bypass valves often face technical challenges, especially how to improve the degree of test automation and accurately measure the response pressure of the bypass valve. Traditional testing equipment is often unable to perform these tests efficiently and accurately, and the recovery and reuse efficiency of engine oil is not high, resulting in resource waste. In this regard, the utility model provides a detection device for a filter element with a bypass valve to solve the above technical problems. Utility Model Content

[0004] The purpose of the embodiments of the utility model is to provide a detection device for a filter element with a bypass valve, aiming to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A detection device for a filter element with a bypass valve, comprising an oil tank, wherein two sides of the outer side of the oil tank are respectively connected with a recovery pipeline and an oil extraction pipe, and an end of the oil extraction pipe away from the oil tank is connected with an oil return pump, a first connecting pipeline is connected to the outer side of the oil return pump, and an oil supply valve is installed on the outer side of the first connecting pipeline, a liquid storage tank is arranged at the end of the first connecting pipeline away from the oil return pump, and a second connecting pipeline is connected to the outer side of the liquid storage tank, a stop valve, a third connecting pipeline and a pressure sensor are arranged in sequence on the outer side of the second connecting pipeline from high to low, and a booster pump is arranged at the end of the second connecting pipeline away from the liquid storage tank;

[0007] The end of the third connecting line away from the second connecting line is provided with a tested filter element assembly, and the end of the recovery line away from the oil tank and the end of the third connecting line away from the second connecting line are both connected to the tested filter element assembly.

[0008] Furthermore, a filter is installed on the outer side of the first connecting pipeline, and the filter is arranged between the oil supply valve and the oil return pump.

[0009] Furthermore, a pressure data display is installed on the outer side of the oil tank, and the pressure data display is electrically connected to the pressure sensor.

[0010] Furthermore, the surfaces of the liquid storage tank and the oil tank are both provided with liquid level display panels.

[0011] Further, the tested filter element assembly comprises a filter element tooling housing, and a mounting cover plate is connected to the outside of the filter element tooling housing, an energy storage cavity is arranged inside the mounting cover plate, and an oil inlet is opened on the surface of the mounting cover plate, an exhaust port is arranged outside the mounting cover plate, and a sealing plug is detachably connected to the inside of the exhaust port;

[0012] A filter element is installed inside the filter element tooling housing, and a bypass valve is arranged inside the filter element. An oil drain port is opened in an area on the surface of the filter element tooling housing away from the installation cover plate.

[0013] Furthermore, one end of the third connecting pipeline away from the second connecting pipeline is connected to the oil inlet, and one end of the recovery pipeline away from the oil tank is connected to the oil drain port.

[0014] The utility model provides a filter element detection device with a bypass valve, which has the following beneficial effects:

[0015] By arranging an oil tank, an oil return pump, an oil supply valve, a liquid storage tank, a shut-off valve, a pressure sensor, a boost pump, a recovery pipeline and first, second and third connecting pipelines, the filter element and the bypass valve in a simulated blockage state can be tested in a highly automated manner, and the critical value of the bypass valve pressure can be accurately and clearly obtained. The tested test oil can be effectively recovered and put back into testing use, avoiding waste of the test oil, thereby improving the practicability of the detection device of the filter element with a bypass valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of a detection device for a filter element with a bypass valve.

[0017] Figure 2 The present invention is a schematic structural diagram of a filter element assembly to be tested in a detection device for a filter element with a bypass valve.

[0018] In the figure: 1. oil tank; 2. tested filter element assembly; 21. filter element tooling housing; 22. filter element; 23. bypass valve; 24. energy storage chamber; 25. oil inlet; 26. sealing plug; 27. exhaust port; 28. installation cover; 29. ​​oil discharge port; 3. oil extraction pipe; 4. oil return pump; 5. first connecting pipeline; 6. filter; 7. oil supply valve; 8. liquid storage tank; 9. stop valve; 10. second connecting pipeline; 11. third connecting pipeline; 12. pressure sensor; 13. booster pump; 14. recovery pipeline. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0021] like Figure 1-Figure 2 As shown, a detection device of a filter element with a bypass valve provided by an embodiment of the utility model comprises an oil tank 1, and two sides of the outer side of the oil tank 1 are respectively connected with a recovery pipeline 14 and an oil extraction pipe 3, and the end of the oil extraction pipe 3 away from the oil tank 1 is connected with an oil return pump 4, the outer side of the oil return pump 4 is connected with a first connecting pipeline 5, and the outer side of the first connecting pipeline 5 is installed with an oil supply valve 7, the end of the first connecting pipeline 5 away from the oil return pump 4 is provided with a liquid storage tank 8, and the outer side of the liquid storage tank 8 is connected with a second connecting pipeline 10, the outer side of the second connecting pipeline 10 is sequentially provided with a stop valve 9, a third connecting pipeline 11 and a pressure sensor 12 from high to low, and the end of the second connecting pipeline 10 away from the liquid storage tank 8 is provided with a booster pump 13;

[0022] The end of the third connecting line 11 away from the second connecting line 10 is provided with the tested filter element assembly 2, and the end of the recovery line 14 away from the oil tank 1 and the end of the third connecting line 11 away from the second connecting line 10 are both connected to the tested filter element assembly 2.

[0023] The tested filter element assembly 2 includes a filter element tooling housing 21, and a mounting cover plate 28 is connected to the outside of the filter element tooling housing 21, an energy storage cavity 24 is arranged inside the mounting cover plate 28, an oil inlet 25 is opened on the surface of the mounting cover plate 28, an exhaust port 27 is arranged on the outside of the mounting cover plate 28, and a sealing plug 26 is detachably connected to the inside of the exhaust port 27;

[0024] A filter element 22 is installed inside the filter element tooling housing 21, and a bypass valve 23 is arranged inside the filter element 22. An oil drain port 29 is opened in an area on the surface of the filter element tooling housing 21 away from the mounting cover plate 28, and an end of the third connecting line 11 away from the second connecting line 10 is connected to the oil inlet 25, and an end of the recovery line 14 away from the oil tank 1 is connected to the oil drain port 29. It can be understood that the filter element 22 is pre-simulated and set to a blocked state by the staff.

[0025] In one embodiment of the utility model, a sufficient amount of test oil is stored in the oil tank 1, and a proper amount of test oil can be drawn from the oil tank 1 through the return oil pump 4 and the oil extraction pipe 3 and injected into the liquid storage tank 8 through the first connecting pipe 5 and the oil supply valve 7;

[0026] When testing the filter element assembly 2 under test, the stop valve 9 is opened so that the test oil in the liquid storage tank 8 is injected into the inside of the boost pump 13 through the second connecting pipe 10, and then the stop valve 9 is closed, and the boost pump 13 is turned on. The boost pump 13 pressurizes the test oil injected into the inside and injects it into the second connecting pipe 10 and the third connecting pipe 11 (since the stop valve 9 is in a closed state, the test oil will not flow back into the liquid storage tank 8). The pressurized test oil is injected into the energy storage chamber 24 through the third connecting pipe 11 and the oil inlet 25. After the energy storage chamber 24 is filled with the test oil, the test oil begins to squeeze the bypass valve 23 until the bypass valve 23 is pressurized and opened. When the bypass valve 23 is opened, the pressure value of the test oil in the detection system at this time is obtained through the pressure sensor 12, so as to determine the pressure that the bypass valve 23 can withstand, and judge whether the bypass valve 23 is qualified.

[0027] After the bypass valve 23 is opened, the test oil flows into the interior of the oil tank 1 through the oil drain port 29 and the recovery line 14, so that the test oil of the tested filter element assembly 2 can be recovered.

[0028] Preferably, a filter 6 is installed on the outside of the first connecting pipe 5, and the filter 6 is arranged between the oil supply valve 7 and the oil return pump 4, so that before the test oil inside the oil tank 1 is injected into the liquid storage tank 8 for testing the filter element assembly 2 to be tested, the impurities in the test oil can be fully filtered out to prevent the impurities from entering the interior of the filter element assembly 2 to be tested and affecting the accuracy of the test.

[0029] Preferably, a pressure data display is installed on the outside of the oil tank 1, and the pressure data display is electrically connected to the pressure sensor 12, so that the staff can clearly and accurately obtain the test pressure data of the bypass valve 23 of the tested filter element assembly 2 through the pressure data display.

[0030] Preferably, the surfaces of the liquid storage tank 8 and the oil tank 1 are both provided with liquid level display panels, so that the staff can conveniently observe the remaining test oil inside the liquid storage tank 8 and the oil tank 1, and determine whether it is necessary to add test oil to the oil tank 1 or the liquid storage tank 8.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for a filter element with a bypass valve, comprising an oil tank (1), characterized in that: The two sides of the outer side of the oil tank (1) are respectively connected to a recovery pipeline (14) and an oil extraction pipe (3), and the end of the oil extraction pipe (3) away from the oil tank (1) is connected to an oil return pump (4), the outer side of the oil return pump (4) is connected to a first connecting pipeline (5), and an oil supply valve (7) is installed on the outer side of the first connecting pipeline (5), a liquid storage tank (8) is arranged at the end of the first connecting pipeline (5) away from the oil return pump (4), and the outer side of the liquid storage tank (8) is connected to a second connecting pipeline (10), the outer side of the second connecting pipeline (10) is sequentially provided with a stop valve (9), a third connecting pipeline (11) and a pressure sensor (12) from high to low, and a booster pump (13) is arranged at the end of the second connecting pipeline (10) away from the liquid storage tank (8); The end of the third connecting pipeline (11) away from the second connecting pipeline (10) is provided with a filter element assembly (2) to be tested, and the end of the recovery pipeline (14) away from the oil tank (1) and the end of the third connecting pipeline (11) away from the second connecting pipeline (10) are both connected to the filter element assembly (2) to be tested.

2. A detection device for a filter element with a bypass valve according to claim 1, characterized in that: A filter (6) is installed on the outside of the first connecting pipeline (5), and the filter (6) is arranged between the oil supply valve (7) and the oil return pump (4).

3. A detection device for a filter element with a bypass valve according to claim 1, characterized in that: A pressure data display is installed on the outside of the oil tank (1), and the pressure data display is electrically connected to the pressure sensor (12).

4. A detection device for a filter element with a bypass valve according to claim 1, characterized in that: The surfaces of the liquid storage tank (8) and the oil tank (1) are both provided with liquid level display panels.

5. The detection device of a filter element with a bypass valve according to claim 1, characterized in that: The tested filter element assembly (2) comprises a filter element tool housing (21), and the outer side of the filter element tool housing (21) is connected to a mounting cover plate (28), an energy storage cavity (24) is arranged inside the mounting cover plate (28), and an oil inlet (25) is opened on the surface of the mounting cover plate (28), an exhaust port (27) is arranged outside the mounting cover plate (28), and a sealing plug (26) is detachably connected inside the exhaust port (27); A filter element (22) is installed inside the filter element tool housing (21), and a bypass valve (23) is arranged inside the filter element (22). An oil discharge port (29) is provided on the surface of the filter element tool housing (21) in an area away from the installation cover plate (28).

6. A detection device for a filter element with a bypass valve according to claim 5, characterized in that: One end of the third connecting pipeline (11) away from the second connecting pipeline (10) is connected to the oil inlet (25), and one end of the recovery pipeline (14) away from the oil tank (1) is connected to the oil discharge port (29).

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