A device for testing a purge valve

Abstract

The application discloses a kind of valve testing device, it is related to valve technical field, valve testing device includes: the valve assembly of washing and washing includes valve body and valve core, multiple inlets and outlets are equipped on valve body, channel is equipped on valve core;Supply tank stores working medium, supply tank outlet is connected with inlet by first pipeline, outlet is connected with supply tank inlet by second pipeline, valve is equipped on first, second pipeline;Drive assembly is connected with valve assembly, drive assembly makes valve core move in valve body, to switch the communication state of washing and washing valve assembly;Detection assembly includes first detection piece on first pipeline, second detection piece on second pipeline;The application is driven valve core movement by drive assembly, realizes the switching of different washing and washing passage of valve assembly, supply tank supplies working medium for different washing and washing passage, according to the feedback of detection assembly, whether washing and washing valve assembly exists block is judged, so as to promptly process blocked area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a valve testing device. BACKGROUND

[0002] In a hydraulic closed system, hydraulic oil is circulated in the closed system, to prevent the oil temperature from being too high, part of the hot oil is discharged through the valve to be washed out to be cooled and filtered, at this time, whether the valve to be washed out is blocked is detected to ensure the stability of the valve to be washed out in the working process and the accuracy of the washing flow.

[0003] Therefore, how to detect whether the valve to be washed out is blocked becomes a technical problem to be solved by the person skilled in the art. SUMMARY

[0004] The purpose of the present application is to provide a valve testing device to detect whether the valve to be washed out is blocked, so as to ensure the stability of the valve to be washed out in the working process and the accuracy of the washing flow.

[0005] To achieve the above purpose, the present application provides the following scheme:

[0006] The present application provides a valve testing device, which comprises:

[0007] A valve assembly, which comprises a valve body and a valve core, the valve body is provided with a plurality of inlets and outlets for working medium to flow through, the valve core is provided with a channel for communicating the inlets and the outlets, and the inlets, the outlets and the channel can form different washing paths;

[0008] A supply tank, which stores working medium, the output port of the supply tank is connected with the inlets through a first pipeline, the outlets are connected with the inlet of the supply tank through a second pipeline, the first pipeline is matched with the washing path, and valves are arranged on the first pipeline and the second pipeline;

[0009] A driving assembly, which is connected with the valve assembly, the driving assembly applies a first force to the valve core, the first force makes the valve core move in the valve body to realize the communication of different inlets and different outlets, so as to switch the communication state of the valve assembly;

[0010] A detection assembly, which comprises a first detection member arranged on the first pipeline and a second detection member arranged on the second pipeline, the first detection member is used to detect the physicochemical properties of the working medium before entering the washing path, and the second detection member is used to detect the physicochemical properties of the working medium discharged from the washing path.

[0011] Preferably, the first pipeline comprises a first branch and a second branch arranged in parallel, a first delivery pump is arranged on the first branch, and a second delivery pump is arranged on the second branch, and the first delivery pump and the second delivery pump are connected in series.

[0012] Preferably, the drive assembly comprises a driving device, an output end of the driving device is connected with the first delivery pump, and a torque sensor is connected with the output end of the driving device.

[0013] Preferably, the drive assembly comprises a third pipeline, two ends of the third pipeline are respectively connected with the supply tank and the inlet, and a third delivery pump is arranged on the third pipeline.

[0014] Preferably, a reversing valve is arranged between the first pipeline and the inlet, and the reversing valve is matched with the first pipeline and the inlet.

[0015] Preferably, the drive assembly comprises an electromagnetic reversing assembly, the electromagnetic reversing assembly comprises an electromagnetic part and a magnetic suction part, the magnetic suction part is arranged on the valve core, the electromagnetic part can exert a second acting force on the valve core, and the second acting force enables the valve core to move in the valve body.

[0016] Preferably, the first detection member and the second detection member each comprise a pressure sensor, a flow sensor, a turbidity sensor, and / or a position sensor arranged on the valve core.

[0017] Preferably, an overflow valve is arranged on the first pipeline, a delivery pump is arranged on the first pipeline, a filter is arranged on the first pipeline, and a material level meter is arranged in the supply tank.

[0018] Preferably, the drive assembly comprises a washing valve, the washing valve is sequentially connected with a buffer throttling baffle and a washing overflow valve, a damper is arranged between the buffer throttling baffle and the washing overflow valve, and the damper is connected with the buffer throttling baffle and the washing overflow valve in parallel.

[0019] The present application has the following technical effects relative to the prior art:

[0020] During the test, the driving assembly applies a first force to the valve core of the valve assembly, drives the valve core to move in the valve body, changes the communication state of the valve assembly, connects the first inlet and the first outlet of the valve assembly, and makes the valve assembly switch to a first communication state. At this time, the valves on the corresponding first pipeline and second pipeline are opened, so that the working medium in the supply tank can enter the valve assembly through the corresponding first pipeline, and the physical and chemical properties of the working medium before and after entering the valve assembly are observed through the first detection member and the second detection member on the corresponding first pipeline and second pipeline respectively. According to the change of the physical and chemical properties before and after entering the valve assembly, the blockage state of the first cleaning channel formed by the first inlet, the channel and the first outlet of the valve assembly is determined.

[0021] Subsequently, the valves on the first pipeline and the second pipeline that were opened before are closed, the driving assembly continues to move the valve core, so that the first inlet of the valve assembly is connected with other outlets, or so that other inlets of the valve assembly are connected with the first outlet, or so that other inlets of the valve assembly are connected with other outlets, the valve assembly is switched from the first communication state to a second communication state, and the valves on the corresponding first pipeline and second pipeline are opened, so that the working medium can flow into the valve assembly from the supply tank through the corresponding first pipeline, and the change of the physical and chemical properties of the working medium before and after entering the valve assembly is obtained according to the corresponding first detection member and second detection member, so as to determine the blockage state of the second cleaning channel formed by the inlet, channel and outlet of the valve assembly in the second communication state. Then, the opened valves are closed again, the driving assembly drives the valve core to continue to move, the valve assembly is switched from the second communication state to a third communication state... to an nth communication state, the valves on the corresponding first pipeline and second pipeline are opened, and the blockage state of the second cleaning channel of the valve assembly is determined according to the corresponding first detection member and second detection member. Then, the test of all cleaning channels in the valve core assembly is realized, so as to process the cleaning channels with blockage, thereby avoiding the use of the blocked cleaning valve in the hydraulic system as much as possible, and solving the problem of unstable cleaning flow of the cleaning valve. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 Fig. 1 is a structural schematic view of a cleaning valve test device;

[0024] Wherein, 1, drive equipment; 2, torque instrument; 3, third delivery pump; 4, third overflow valve; 5, third pressure gauge; 6, third flowmeter; 7, two-position four-way directional control valve; 8, first delivery pump; 9, first overflow valve; 10, first pressure gauge; 11, first flowmeter; 12, flushing valve; 13, buffer throttle baffle; 14, flushing overflow valve; 15, damper; 16, second pressure gauge; 17, first filter; 18, supply tank; 19, liquid level gauge; 20, valve; 21, second filter. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] In order to make the above objectives, characteristics and advantages of the present application more apparent, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0027] As Figure 1 shown, the present application discloses a flushing valve testing device, which comprises: a flushing valve assembly, the flushing valve assembly comprising a valve body and a valve core, the valve body being provided with a plurality of inlets and outlets for working medium to flow through, the valve core being provided with a channel for connecting the inlets and the outlets, the inlets, the outlets and the channel being capable of forming different flushing paths; a supply tank 18, the supply tank 18 storing working medium, an outlet of the supply tank 18 being connected to the inlets through a first pipeline, the outlets being connected to an inlet of the supply tank 18 through a second pipeline, the first pipeline being matched with the flushing paths, and the first pipeline and the second pipeline being both provided with valves; a driving assembly, the driving assembly being connected to the flushing valve assembly, the driving assembly applying a first force to the valve core, the first force enabling the valve core to move in the valve body to realize the connection of different inlets and different outlets and switch the connection state of the flushing valve assembly; and a detection assembly, the detection assembly comprising a first detection member provided on the first pipeline and a second detection member provided on the second pipeline, the first detection member being used for detecting the physicochemical properties of the working medium before entering the flushing paths, and the second detection member being used for detecting the physicochemical properties of the working medium discharged from the flushing paths.

[0028] During testing, the driving assembly applies a first force to the valve core of the flushing valve assembly to drive the valve core to move in the valve body, thereby changing the communication state of the flushing valve assembly. If the flushing valve assembly is in a normally-off state, the first inlet of the flushing valve assembly is connected to the first outlet, so that the flushing valve assembly is switched from the off state to the first communication state. If the flushing valve assembly is in a normally-on state, the driving assembly is not started first. At this time, the valves on the corresponding first pipeline and second pipeline (the valve on the corresponding first pipeline refers to the first pipeline connected to the first inlet, and the valve on the corresponding second pipeline refers to the second pipeline connected to the first outlet) are opened, so that the working medium in the supply tank 18 can enter the flushing valve assembly through the corresponding first pipeline, and the physical and chemical properties of the working medium before and after entering the flushing valve assembly are observed through the first detection member and the second detection member on the corresponding first pipeline and second pipeline respectively. According to the change of the physical and chemical properties before and after entering the flushing valve assembly, the blockage state of the first flushing passage formed by the first inlet, the passage and the first outlet of the flushing valve assembly is determined. Subsequently, the valves on the first pipeline and the second pipeline opened before are closed, and the above steps are repeated until all the flushing passages of the flushing valve assembly are detected. The driving assembly continues to move the valve core, so that the first inlet of the flushing valve assembly is connected to the other outlets, or the other inlets of the flushing valve assembly are connected to the first outlet, or the other inlets of the flushing valve assembly are connected to the other outlets, so that the flushing valve assembly is switched from the first communication state to the second communication state, and the valves on the corresponding first pipeline and second pipeline are opened, so that the working medium can flow from the supply tank 18 into the flushing valve assembly through the corresponding first pipeline, and the change of the physical and chemical properties of the working medium before and after entering the flushing valve assembly is obtained according to the first detection member and the second detection member, so as to determine the blockage state of the second flushing passage formed by the inlet, the passage and the outlet of the flushing valve assembly in the second communication state. Then, the valves opened are closed again, the driving assembly drives the valve core to continue to move, so that the flushing valve assembly is switched from the second communication state to the third communication state... the nth communication state, the valves on the corresponding first pipeline and second pipeline are opened, and the blockage state of the second flushing passage of the flushing valve assembly is determined according to the first detection member and the second detection member, and then the testing of all the flushing passages in the valve core assembly is realized, so as to process the flushing passages with blockage, thereby avoiding the use of the blocked flushing valve 12 in the hydraulic system as much as possible, and solving the problem of unstable flushing flow of the flushing valve 12.

[0029] It should be noted that the outlets mentioned herein are all outlets provided on the valve body, and the outlet does not represent the output port on the supply tank 18. According to different types of tested flushing valve assemblies, the valve body of the flushing valve assembly has different numbers of inlets and outlets. The inlets, outlets and passages can form different flushing passages, which means that by driving the valve core to move in the valve body through the driving assembly, the communication between different inlets and different outlets can be realized through the passages, thereby forming different flushing passages; for example,Figure 1 As shown, the flush valve 12 in the flush valve assembly is a three-position three-way valve, which has two inlets and one outlet, so the three-position three-way valve can form two different flush paths. When the flush valve assembly test device in the application is used to detect the flush valve assembly in the hydraulic system, the stored working medium in the supply tank 18 can be hydraulic oil, and the specific type of hydraulic oil is not detailed here. The switching of the communication state of the channel flush valve assembly includes the transition between the disconnected state and the connected state, and the switching between different flush paths.

[0030] The physical and chemical properties include the temperature, turbidity, pressure of the working medium, the flow rate of the working medium flowing into the flush valve assembly, and the flow rate of the working medium flowing out of the flush valve assembly, etc. The parameters that can reflect whether the flush valve assembly is blocked can be reflected by the parameters of the first detection member and the second detection member. According to the different contents of the physical and chemical properties, the first detection member and the second detection member both include a pressure sensor; and / or, a flow sensor; and / or, a turbidity sensor; and / or, the detection assembly includes a position sensor arranged on the valve core. The position sensor is arranged on the valve core, and whether the valve core moves in the valve body is judged according to the feedback of the position sensor.

[0031] Among them, the application can set the corresponding number of first pipelines and second pipelines according to the number of inlets and outlets arranged on the valve body (both enough first pipelines and second pipelines can be arranged, and the first pipelines and the second pipelines can also include enough branches), and valves are arranged on the first pipelines and the second pipelines to open and close the corresponding valves when the flush valve assembly switches different switching paths. Alternatively, the application can also set a switching valve between the first pipeline and the flush valve assembly, and the switching of the same first pipeline and different inlets is realized through the switching of the switching valve, so as to simplify the structure of the test device in the application and reduce the test cost. Different types of switching valves can be used according to the type of the switching valve and the working condition demand. Figure 1 As shown, when the flush valve 12 in the flush valve assembly is a three-position three-way valve, the switching valve can be a two-position four-way valve, which can be a two-position four-way electromagnetic valve. At this time, one end of the first pipeline is connected with the supply tank 18, the other end is connected with the T port of the two-position four-way valve, the B port of the two-position four-way valve is connected with the X port of the three-position three-way valve, and the A port of the two-position four-way valve is connected with the Y port of the three-position three-way valve. At this time, when the two-position four-way electromagnetic valve is not powered, the working medium is discharged through the first pipeline, the T port of the two-position four-way valve, and the A port of the two-position four-way valve, and then enters the Y port of the three-position three-way valve, and then is discharged from the outlet of the three-position three-way valve. When the two-position four-way electromagnetic valve is powered, the working medium is discharged through the first pipeline, the T port of the two-position four-way valve, and the B port of the two-position four-way valve, and then enters the X port of the three-position three-way valve, and then is discharged from the outlet of the three-position three-way valve.

[0032] It should be noted that the P port and the T port of the two-position four-way directional valve 7 are both inlets of the two-position four-way directional valve 7, and the A port and the B port of the two-position four-way directional valve 7 are both outlets of the two-position four-way directional valve 7; the X port and the Y port of the washing and cleaning valve 12 are both inlets of the washing and cleaning valve 12.

[0033] As shown in Figure 1 When the washing and cleaning valve 12 of the washing and cleaning valve assembly is a three-position three-way valve and has two inlets, a first branch and a second branch connected to the two inlets, respectively, can be provided, the first branch and the second branch are connected in parallel, the first ends of the first branch and the second branch are connected to the two inlets, respectively, and the second ends of the first branch and the second branch are both connected to the outlet of the supply tank 18, the first conveying pump 8 is arranged on the first branch, and the second conveying pump is arranged on the second branch, the first conveying pump 8 and the second conveying pump are connected in series, the first conveying pump 8 can be connected to the second conveying pump through a transmission shaft, a shaft sleeve, a transition plate and the like, in this way, the first conveying pump 8 and the second conveying pump are integrated, thereby reducing the volume of the washing and cleaning valve assembly test device and reducing the space occupation.

[0034] Further, the first conveying pump 8 and the second conveying pump can be driven to rotate by the driving device 1, the output end of the driving device 1 is connected to the first conveying pump 8, and the output end of the driving device 1 is connected to a torque sensor; the torque of the driving device 1 is detected in real time through the torque sensor, so as to avoid damage of the driving device 1 due to excessive torque.

[0035] Furthermore, the driving assembly has various forms according to different moving modes of the valve core of the washing and cleaning valve 12 in the driving assembly. For example, the driving assembly includes a third pipeline, both ends of the third pipeline are connected to the supply tank 18 and the inlet, respectively, and the third conveying pump 3 is arranged on the third pipeline; at this time, the third conveying pump 3, the supply tank 18 and the working medium together constitute the driving assembly, the third conveying pump 3 draws the working medium from the supply tank 18 and inputs it into the valve body, thereby driving the valve core to move in the valve body, so as to realize switching of different communication states of the washing and cleaning valve assembly.

[0036] Alternatively, the driving assembly can also not adopt the above form, and the driving assembly includes an electromagnetic reversing assembly, the electromagnetic reversing assembly includes an electromagnetic part and a magnetic attraction part, the magnetic attraction part is arranged on the valve core, and the electromagnetic part can exert a second force on the valve core, the second force drives the valve core to move in the valve body, thereby realizing switching of different communication states of the washing and cleaning valve assembly.

[0037] In addition, the power for moving the working medium from the supply tank 18 to the exchange path or to the valve body can be provided by setting a delivery pump, such as a plunger pump, on the corresponding pipeline, and an overflow valve can also be arranged on the first pipeline and the second pipeline to ensure that the delivery pressure of the pipeline is within a threshold range, and to reduce the influence of impurities in the working medium on the determination of the blockage state of the exchange path of the exchange valve 12 in the exchange valve assembly, the present application is provided with a filter on the first pipeline and the second pipeline, which intercepts the impurities in the working medium to ensure the accuracy of the determination of the blockage state of the exchange valve 12, and a material level meter, such as a liquid level meter 19, can also be arranged in the supply tank 18, and the working medium can be supplemented in time according to the reading of the liquid level meter 19 to ensure the continuity of the operation of the testing device.

[0038] As shown in Figure 1 When the exchange valve 12 of the exchange valve assembly being tested is a three-position three-way valve, a two-position four-way valve is arranged between the first pipeline and the exchange valve 12, the driving assembly includes a third pipeline, the two ends of the third pipeline are respectively connected with the supply tank 18 and the inlet, a third delivery pump 3 is arranged on the third pipeline, and the supply tank 18 is sequentially connected with a valve 20 (which can be a butterfly valve or the like capable of controlling the opening and closing of the pipeline), a second filter 21, the first pipeline and the third pipeline are connected in parallel, a first delivery pump 8, a first overflow valve 9, a first pressure gauge 10 and a first flow meter 11 are sequentially arranged on the first pipeline, a third delivery pump 3, a third overflow valve 4, a third pressure gauge 5 and a third flow meter 6 are sequentially arranged on the third pipeline, one end of the first pipeline and the third pipeline is respectively connected with the supply tank 18 through a low-pressure hose, the other end of the first pipeline is connected with the T port of the two-position four-way valve through a high-pressure hose, the other end of the third pipeline is connected with the P port of the two-position four-way valve through a high-pressure hose, the A port of the two-position four-way valve is connected with the Y port of the three-position three-way valve through a high-pressure hose, the B port of the two-position four-way valve is connected with the X port of the three-position three-way valve through a high-pressure hose, and the outlet of the three-position three-way valve is sequentially connected with a second pressure gauge 16 and a first filter 17, and the outlet of the three-position three-way valve is connected with the supply tank 18 through the first pipeline and a high-pressure hose.

[0039] Based on the above content, the working process of the exchange valve assembly testing device is as follows:

[0040] When testing the flushing passage between the Y port of the flushing valve Y and the outlet, the set overflow pressure of the third overflow valve 4 is set (specifically, 4 MPa), the two-position four-way electromagnetic reversing valve is not powered, the driving device 1 is started, the driving device 1 drives the first delivery pump 8 and the third delivery pump 3 to work through the torque instrument 2, the rotating speed is 1500 rpm, the load is 10 MPa, the set pressure of the first overflow valve 9 is slowly adjusted, and the pressure difference between the first pressure gauge 10 and the second pressure gauge 16 is observed. When the pressure difference is 2 MPa (when the pressure difference is 2 MPa, it represents that the opening pressure of the flushing valve 12 is reached), 2.5 MPa, the corresponding flow rates are recorded respectively. Similarly, when testing the flushing passage between the X port of the flushing valve 12 and the outlet, the set overflow pressure of the third overflow valve 4 is set (specifically, 4 MPa), the two-position four-way electromagnetic reversing valve is powered, the driving device 1 is started, the driving device 1 drives the first delivery pump 8 and the third delivery pump 3 to work through the torque instrument 2, the rotating speed is 1500 rpm, the load is 10 MPa, the pressure set of the first overflow valve 9 is slowly adjusted, and the pressure difference between the first pressure gauge 10 and the second pressure gauge 16 is observed. When the pressure difference is 2 MPa, 2.5 MPa, the corresponding flow rates are recorded respectively.

[0041] The working principle is as follows:

[0042] When the flushing valve 12 is tested: the valve 20 between the supply tank 18 and the first pipeline is opened, the driving device 1 is actuated, the driving device 1 drives the first delivery pump 8 and the third delivery pump 3 to rotate through the torque instrument 2, the first delivery pump 8 and the third delivery pump 3 suck oil from the supply tank 18 through the valve 20 and the low-pressure hose between the supply tank 18 and the first pipeline and the third pipeline, and the hydraulic oil passes through the first filter 17 and enters the first delivery pump 8 and the third delivery pump 3 respectively.

[0043] The oil discharged from the oil outlet of the third delivery pump 3 passes through the third overflow valve 4, the third pressure gauge 5, the third flowmeter 6, enters the P port of the two-position four-way reversing valve 7, and is discharged from the B port to enter the X port of the flushing valve 12 under the condition that the two-position four-way electromagnetic valve is not powered, is responsible for pushing away the valve core, makes the Y port of the flushing valve 12 open, and is discharged from the A port to enter the Y port of the flushing valve 12 under the condition that the two-position four-way electromagnetic valve is powered, is responsible for pushing away the valve core, and makes the X port of the flushing valve 12 open.

[0044] The oil discharged from the oil outlet of the first delivery pump 8 passes through the first overflow valve 9, the first pressure gauge 10, the first flowmeter 11, enters the T port of the two-position four-way reversing valve 7, and is discharged from the A port to enter the Y port of the flushing valve 12 under the condition that the two-position four-way electromagnetic valve is not powered, and is discharged from the B port to enter the X port of the flushing valve 12 under the condition that the two-position four-way electromagnetic valve is powered.

[0045] As Figure 1As shown, the valve assembly in the application comprises a valve 12, which is connected with a buffer throttle baffle 13 and a flush overflow valve 14 in sequence, and a damper 15 is arranged between the buffer throttle baffle 13 and the flush overflow valve 14, and the damper 15 is connected with the buffer throttle baffle 13 and the flush overflow valve 14 in parallel. The larger the opening of the buffer throttle baffle 13 is, the larger the flush flow is, the flush overflow valve 14 determines the opening pressure of the valve 12, and the damper 15 plays a throttling role; the above structure of the valve assembly is equivalent to form an actual flush valve, and the valve assembly can be used in a closed or open hydraulic system.

[0046] The application discloses a plurality of technical solutions, but there is no case of giving opposite technical inspiration.

[0047] The application of specific examples is used to describe the principle and implementation mode of the application, and the above embodiment is only used to help understand the method and core idea of the application; meanwhile, for the general technical personnel in the field, according to the idea of the application, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the application.

Claims

1. A regenerative valve testing device characterized by, The regeneration valve testing device comprises: The regeneration valve assembly comprises a valve body and a valve core, the valve body is provided with a plurality of inlets and outlets for working medium flow, the valve core is located in the valve body, the valve core is provided with a channel for connecting the inlets and the outlets, the inlets, the outlets and the channel can form different regeneration channels; The supply tank stores working medium, the output of the supply tank is connected with the inlet through a first pipeline, the outlet is connected with the inlet of the supply tank through a second pipeline, the first pipeline matches the regeneration channel, and valves are arranged on the first pipeline and the second pipeline; The driving assembly is connected with the regeneration valve assembly, the driving assembly applies a first force to the valve core, the first force drives the valve core to move in the valve body to realize the connection of different inlets and different outlets, and the connection state of the regeneration valve assembly is switched; The detection assembly comprises a first detection member arranged on the first pipeline and a second detection member arranged on the second pipeline, the first detection member is used to detect the physical and chemical properties of the working medium before entering the regeneration channel, and the second detection member is used to detect the physical and chemical properties of the working medium discharged from the regeneration channel.

2. The regenerable valve testing device of claim 1, wherein, The first pipeline comprises a first branch and a second branch arranged in parallel, a first delivery pump is arranged on the first branch, and a second delivery pump is arranged on the second branch.

3. The regenerable valve testing device of claim 2, wherein, The regeneration valve testing device comprises a driving device, the output of the driving device is connected with the first delivery pump, and a torque sensor is connected with the output of the driving device.

4. The regenerable valve testing device of claim 1, wherein, The driving assembly comprises a third pipeline, the two ends of the third pipeline are connected with the supply tank and the inlet respectively, and a third delivery pump is arranged on the third pipeline.

5. The regenerable valve testing device of claim 1 or 4, wherein, A reversing valve is arranged between the first pipeline and the inlet, and the reversing valve matches the first pipeline and the inlet.

6. The regenerable valve testing device of claim 1, wherein, The driving assembly comprises an electromagnetic reversing assembly, the electromagnetic reversing assembly comprises an electromagnetic part and a magnetic attraction part, the magnetic attraction part is arranged on the valve core, the electromagnetic part can apply a second force to the magnetic attraction part, and the second force drives the valve core to move in the valve body.

7. The regenerable valve testing device of claim 1, wherein, The first detection member and the second detection member each comprise a pressure sensor, a flow sensor, a turbidity sensor, and / or a position sensor arranged on the valve core.

8. The regenerable valve testing device of claim 1, wherein, An overflow valve is arranged on the first pipeline, a delivery pump is arranged on the first pipeline, a filter is arranged on the first pipeline, and a material level meter is arranged in the supply tank.

9. The regenerable valve testing device of claim 1, wherein, The regeneration valve assembly comprises a regeneration valve, the regeneration valve is sequentially connected with a buffer throttle baffle and a regeneration overflow valve, a damping is arranged between the buffer throttle baffle and the regeneration overflow valve, and the damping is connected with the buffer throttle baffle and the regeneration overflow valve in parallel.

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