High-pressure one-way valve test bed
By using an overflow valve and a solenoid directional valve in a high-pressure check valve test bench, combined with international standard interfaces, the safety and accuracy issues of check valve performance testing under high-pressure conditions were solved, achieving efficient and safe testing results.
Patent Information
- Application Number
- CN202423308538.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing high-pressure, high-flow-rate check valve performance testing equipment is difficult to guarantee in terms of safety and test result accuracy under high-pressure environments, and it cannot adapt to diverse testing environments, resulting in low testing efficiency.
A high-pressure one-way valve test bench was designed. It uses an overflow valve to protect the hydraulic pump, an electromagnetic directional valve to control the flow of the medium, and adopts an international standard interface to achieve safe and reliable performance testing and support quick replacement of test components.
While ensuring safety and reliability, efficient one-way valve performance testing was achieved, improving the accuracy and adaptability of test results, reducing manufacturing costs, and increasing testing efficiency.
Smart Images
Figure CN223664272U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of one-way valve testing, for example to a high-pressure one-way valve test bench. BACKGROUND
[0002] The performance testing of developed high-pressure and large-flow one-way valves is relatively heavy, and the tested one-way valve elements need to be frequently replaced multiple times during the testing process, and the testing work must be efficiently completed under the condition of ensuring safety and reliability. The rated working pressure of the high-pressure and large-flow one-way valve is 35 MPa, the rated working flow is 40 L / min, the opening pressure is 3.5 bar, and there is no leakage. The working condition determines that the testing is performed in a high-pressure environment, and higher requirements are required for the manufacturing of the testing bench to ensure the safety of the workers.
[0003] At present, a reversing valve is usually installed on a pipeline to control the flow direction of the medium oil, so as to detect the flow performance of the one-way valve on the pipeline. However, the detection method is relatively single, cannot meet the diversified testing environment requirements, and can only be tested in limited environments. Once the testing environment changes, the accuracy of the testing result is directly affected, and the safety of the testing is difficult to ensure.
[0004] Therefore, it can be seen that how to improve the safety of the testing and ensure the reliability of the testing result is a technical problem to be solved by the person skilled in the art.
[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL
[0006] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.
[0007] The high-pressure one-way valve test bench provided by the embodiments of the present application can accurately test the performance of the tested one-way valve under the condition of ensuring absolute safety and reliability, the installation interfaces between the parts adopt international standards, the interchangeability is strong, the testing elements and various measuring elements can be quickly replaced, and the working efficiency of the one-way valve performance testing is greatly improved.
[0008] In some embodiments, a high-pressure one-way valve test bench comprises an oil medium tank, a high-pressure large-flow hydraulic pump, an electromagnetic reversing valve and an overflow valve. The high-pressure large-flow hydraulic pump is connected to the oil medium tank through an oil inlet pipeline, and the oil outlet end of the high-pressure large-flow hydraulic pump is connected to a main oil pipeline. The high-pressure large-flow hydraulic pump is further connected to an electric motor, which provides a rotating torque for the high-pressure large-flow hydraulic pump. The electromagnetic reversing valve is arranged on the main oil pipeline, and a tested one-way valve is arranged at the front end of the electromagnetic reversing valve. The electromagnetic reversing valve is used to change the flow direction of the oil medium flowing through the tested one-way valve. The overflow valve is connected to the main oil pipeline through a branch pipeline, and the connection point of the branch pipeline and the main oil pipeline is located between the high-pressure large-flow hydraulic pump and the electromagnetic reversing valve.
[0009] Optionally, the oil inlet and the oil outlet of the tested one-way valve are each provided with a first pressure detection table.
[0010] Optionally, the branch pipeline at the oil outlet end of the high-pressure large-flow hydraulic pump is provided with a second pressure detection table.
[0011] Optionally, the oil outlet end of the tested one-way valve is connected to a return oil pipeline, and the electromagnetic reversing valve is further connected to the return oil pipeline.
[0012] Optionally, a flow meter is arranged on the return oil pipeline.
[0013] Optionally, a thermometer is arranged on the return oil pipeline.
[0014] Optionally, a loading valve is arranged on the return oil pipeline.
[0015] Optionally, a first filter is arranged on the oil inlet pipeline.
[0016] Optionally, a second filter is arranged on the main oil pipeline.
[0017] Optionally, the tested one-way valve is sealingly connected to the mounting surface of the test bench.
[0018] The high-pressure one-way valve test bench provided by the embodiments of the present disclosure can achieve the following technical effects:
[0019] The overflow valve provides protection for the high-pressure large-flow hydraulic pump. When the motor is powered on and starts, the high-pressure large-flow hydraulic pump is driven to work. At this time, in order to protect the high-pressure large-flow hydraulic pump, the overflow valve is adjusted to the on state to reduce the rapid pressure impact on the high-pressure large-flow hydraulic pump when the system starts, reduce the starting torque of the test bench, and facilitate the stable start of the test bench. The reversing function of the electromagnetic reversing valve is used to realize the direction limitation of the oil medium flowing through the test check valve, so as to realize the functions of the test check valve being on in the positive direction and being sealed in the reverse direction. Therefore, the performance of the test check valve can be accurately tested in an absolutely safe and reliable manner. The installation interfaces between the parts adopt international standards, have strong interchangeability, can quickly replace test elements and various measuring elements, and greatly improve the work efficiency of the check valve performance test.
[0020] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0021] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limits, and wherein:
[0022] Figure 1 is a schematic view of a high-pressure check valve test bench provided by an embodiment of the present disclosure;
[0023] Figure 2 is a schematic view of a pressure detection table provided by an embodiment of the present disclosure;
[0024] Figure 3 is a schematic view of a return pipeline provided by an embodiment of the present disclosure;
[0025] Figure 4 is a schematic view of a filter provided by an embodiment of the present disclosure;
[0026] Reference signs:
[0027] 100, oil medium tank; 200, high-pressure large-flow hydraulic pump; 201, oil inlet pipeline; 202, main oil pipeline; 203, motor; 204, first filter; 205, second filter; 300, electromagnetic reversing valve; 400, test check valve; 500, overflow valve; 501, branch pipeline; 600, first pressure detection table; 700, second pressure detection table; 800, oil return pipeline; 801, flowmeter; 802, thermometer; 803, loading valve. DETAILED DESCRIPTION
[0028] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the accompanying drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.
[0029] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.
[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.
[0031] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.
[0032] Unless otherwise specified, the term "a plurality of" means two or more.
[0033] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.
[0034] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, the three relationships.
[0035] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0036] In combination with Figure 1 As shown in the drawings, the present disclosure provides a high-pressure one-way valve test bench, comprising: an oil medium tank 100, a high-pressure large-flow hydraulic pump 200, an electromagnetic reversing valve 300 and an overflow valve 500. The high-pressure large-flow hydraulic pump 200 is connected with the oil medium tank 100 through an oil inlet pipeline 201, and the oil outlet end of the high-pressure large-flow hydraulic pump 200 is connected with a main oil pipeline 202, wherein the high-pressure large-flow hydraulic pump 200 is further connected with a motor 203, and the motor 203 provides a rotating torque for the high-pressure large-flow hydraulic pump 200; the electromagnetic reversing valve 300 is arranged on the main oil pipeline 202, and a front end of the electromagnetic reversing valve 300 is provided with a tested one-way valve 400, and the electromagnetic reversing valve 300 is used to change the flow direction of the oil medium flowing through the tested one-way valve 400; the overflow valve 500 is connected with the main oil pipeline through a branch pipeline 501, and the connection point of the branch pipeline 501 and the main oil pipeline is located between the high-pressure large-flow hydraulic pump 200 and the electromagnetic reversing valve 300.
[0037] The high-pressure one-way valve test bench provided by the present disclosure is adopted, the overflow valve 500 provides protection for the high-pressure large-flow hydraulic pump 200, when the motor is powered on and started, the high-pressure large-flow hydraulic pump 200 is driven to work, at this time, in order to protect the high-pressure large-flow hydraulic pump 200, the overflow valve 500 is adjusted to the conduction state, so as to reduce the rapid pressure impact of the system on the high-pressure large-flow hydraulic pump 200 when starting, reduce the starting torque of the test bench, and facilitate the stable starting of the test bench. The reversing function of the electromagnetic reversing valve 300 is used to realize the direction limitation of the oil medium flowing through the tested one-way valve 400, so as to realize the functions of the tested one-way valve 400 being normally on and reversely sealed, and then the performance of the tested one-way valve 400 can be accurately tested under the condition of ensuring absolute safety and reliability. The installation interfaces between parts adopt international standards, have strong interchangeability, can quickly replace test elements and various measuring elements, and greatly improve the work efficiency of one-way valve performance testing.
[0038] Optionally, the motor 203 and the high-pressure large-flow hydraulic pump 200 are concentrated on the oil medium tank 100 of the test bench. In this way, the structure is compact, the occupied space is small, the limited resources are saved, the cost of manufacturing the test bench is reduced, the heat dissipation effect of the medium oil is reasonably utilized, the test equipment is effectively cooled, and the high-pressure large-flow hydraulic pump 200 is protected.
[0039] Optionally, the oil medium tank 100 is also connected with an oil cooler. In this way, the oil medium in the oil medium tank 100 is cooled by the oil cooler, which helps to better utilize the oil medium to test the performance of the test check valve 400.
[0040] Optionally, the high-pressure check valve test bench further comprises a control cabinet, which is a programmable controller and is provided with an air switch, a time relay, an intermediate relay and a stabilized power supply. In this way, the control mode is automated and intelligentized, and the performance test efficiency of the test check valve 400 is greatly improved.
[0041] Optionally, the high-pressure check valve test bench further comprises an operation table, which has a HIM human-machine device, a button, an indicator light and a display instrument. In this way, it is more in line with ergonomics, improves the convenience of operation and improves the operation experience.
[0042] Optionally, the overflow valve 500 is connected with a buffer tank. In this way, in the case of oil circuit blockage, hydraulic oil flows back to the buffer tank through the overflow valve 500, ensuring that the test can be orderly and stably carried out.
[0043] As shown in Figure 2 Optionally, the oil inlet and the oil outlet of the test check valve 400 are each provided with a first pressure detection table 600. In this way, the first pressure detection table 600 can detect the pressure at the oil inlet and the oil outlet of the test check valve 400, so as to obtain pressure data and complete the pressure performance test of the test check valve 400.
[0044] Optionally, a second pressure detection table 700 is arranged on the branch pipeline 501 of the oil outlet end of the high-pressure large-flow hydraulic pump 200. In this way, by detecting the pressure data of the oil outlet end of the high-pressure large-flow hydraulic pump 200, data comparison can be better carried out to accurately judge whether the pressure test result is accurate, and the accuracy and reliability of the test result are ensured.
[0045] It can be understood that the first pressure detection table 600 and the second pressure detection table 700 are both pressure gauges, which are prior art and will not be described here.
[0046] As shown in Figure 3 Optionally, the oil outlet end of the test check valve 400 is connected with a return oil pipeline 800, and the electromagnetic reversing valve 300 is also connected to the return oil pipeline 800. In this way, the circulation of the oil circuit is more rationalized, ensuring that the performance test of the test check valve 400 can be carried out in an orderly and stable manner, so that the performance test of the test check valve 400 can be completed in an orderly and stable manner.
[0047] Optionally, the oil return pipeline 800 is provided with a flow meter 801. In this way, the flow meter 801 can be used to accurately test the flow of oil medium flowing through the test one-way valve 400, so as to obtain flow data and complete the flow performance test of the test one-way valve 400.
[0048] Optionally, the oil return pipeline 800 is provided with a thermometer 802. In this way, the thermometer 802 is used to measure the temperature of the medium oil flowing through the one-way valve, so as to timely adjust the oil temperature in the case of abnormal oil temperature, and reduce the influence of oil temperature on the test process and test results.
[0049] Optionally, the oil return pipeline 800 is provided with a loading valve 803. In this way, the loading valve 803 is used to provide the test one-way valve 400 with medium oil load, so that the test one-way valve 400 can perform performance test in a certain load environment, thereby ensuring that the test one-way valve 400 can be accurately tested in various environments.
[0050] Optionally, the electromagnetic reversing valve 300, the flow meter 801, the thermometer 802 and the loading valve 803 are sequentially arranged along the oil return pipeline 800. In this way, the arrangement positions of the electromagnetic reversing valve 300, the flow meter 801, the thermometer 802 and the loading valve 803 are rationalized, and the arrangement is more orderly, which helps users better view various data information.
[0051] Optionally, the loading valve 803 is connected with a pressure regulating oil tank, and the loading valve 803 is further connected with a feedback controller, which is connected with the loading valve 803 and used to adjust the opening size of the loading valve 803 according to the relationship between the actual flow and the set flow. In this way, the loading valve 803 is usually composed of a valve body, a valve core, a spring and an adjusting rod, etc. When the flow in the hydraulic system exceeds the preset value, the loading valve 803 will automatically start and adjust the opening degree of the valve to keep the flow within the set range.
[0052] As shown in Figure 4 Optionally, the oil inlet pipeline 201 is provided with a first filter 204. In this way, the test system oil circuit is cleaned, various impurities in the oil are filtered out, and the cleanliness of the hydraulic oil is ensured, so as to better test the performance of the test one-way valve 400 and ensure that the test process can be carried out smoothly while improving the reliability of the test results.
[0053] Optionally, the main oil pipeline 202 is provided with a second filter 205. In this way, the second filter 205 is used to further filter out various impurities in the oil, thereby improving the cleanliness of the hydraulic oil.
[0054] Optionally, the second filter 205 is arranged between the connection point of the branch pipeline 501 and the main oil pipeline 202 and the electromagnetic reversing valve 300. In this way, the installation position of the second filter 205 is rationalized, and the second filter 205 is installed on the main oil pipeline 202 to filter impurities of the hydraulic oil flowing to the test one-way valve 400, so as to ensure the cleanliness of the hydraulic oil flowing to the test one-way valve 400, avoid pipeline blockage, and ensure that the test process can be orderly and stably carried out.
[0055] Optionally, the test one-way valve 400 is sealingly connected with the installation surface of the test bench. In this way, the sealing property is enhanced, the interference of the external environment is reduced, the performance of the test one-way valve 400 can be tested in the extreme environment, the adaptability is improved, and the test requirements in various environments are met.
[0056] It is worth noting that the test one-way valve 400 is composed of a valve core and a spring, and the movement process is that the test bench high-pressure hydraulic oil enters the oil inlet P of the one-way valve product, overcomes the spring force and the friction resistance of the valve core and the gravity, the one-way valve is opened, the hydraulic oil flows out from the oil outlet T, and pressure is supplied for the subsequent hydraulic components; when the oil inlet P is depressurized and has no pressure, the valve core is reset under the action of the spring force to close the oil inlet P, the oil circuit is blocked, and the hydraulic oil flows back to the oil tank through the overflow valve 500.
[0057] The above description and drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments can include structural and other changes. The embodiments only represent possible changes. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Some parts and features of some embodiments can be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is only limited by the appended claims.
Claims
1. A high-pressure one-way valve test bench, characterized in that, include: Oil medium casing (100); A high-pressure, high-flow hydraulic pump (200) is connected to an oil medium housing (100) via an oil inlet pipe (201), and the oil outlet of the high-pressure, high-flow hydraulic pump (200) is connected to a main oil pipe (202). The high-pressure, high-flow hydraulic pump (200) is also connected to an electric motor (203), which provides torque to the high-pressure, high-flow hydraulic pump (200). An electromagnetic directional valve (300) is installed on the main oil pipeline (202), and a test check valve (400) is installed at the front end of the electromagnetic directional valve (300). The electromagnetic directional valve (300) is used to change the flow direction of the oil medium flowing through the test check valve (400). The relief valve (500) is connected to the main oil pipe through a branch pipe (501), and the connection point between the branch pipe (501) and the main oil pipe is located between the high-pressure, high-flow hydraulic pump (200) and the solenoid directional valve (300).
2. The high-pressure one-way valve test bench according to claim 1, characterized in that, The test check valve (400) is equipped with a first pressure gauge (600) at both its inlet and outlet.
3. The high-pressure one-way valve test bench according to claim 1, characterized in that, A second pressure gauge (700) is installed on the branch pipeline (501) at the oil outlet of the high-pressure, high-flow hydraulic pump (200).
4. The high-pressure one-way valve test bench according to claim 1, characterized in that, The oil outlet of the test check valve (400) is connected to the return oil line (800), and the solenoid directional valve (300) is also connected to the return oil line (800).
5. The high-pressure one-way valve test bench according to claim 4, characterized in that, A flow meter (801) is installed on the return oil line (800).
6. The high-pressure one-way valve test bench according to claim 4, characterized in that, A thermometer (802) is installed on the return oil line (800).
7. The high-pressure one-way valve test bench according to claim 4, characterized in that, A loading valve (803) is installed on the return oil line (800).
8. The high-pressure check valve test bench according to any one of claims 1 to 7, characterized in that, A first filter (204) is installed on the oil inlet pipe (201).
9. The high-pressure check valve test bench according to any one of claims 1 to 7, characterized in that, A second filter (205) is installed on the main oil pipeline (202).
10. The high-pressure check valve test bench according to any one of claims 1 to 7, characterized in that, The test check valve (400) is sealed to the mounting surface of the test bench.