200results about "Machine valve testing" patented technology

The application discloses a kind of breathing valve online verification method, device and storage medium, and verification method includes: obtaining the first information of to-be-tested breathing valve, first information includes: ambient temperature, valve initial temperature, valve real-time temperature, target temperature, reference temperature, standard exhalation opening pressure and standard inhalation opening pressure;According to ambient temperature, valve initial temperature and target temperature, valve real-time temperature is adjusted to target temperature;Pressure verification test is carried out to to-be-tested breathing valve, and second information is obtained, second information includes measured exhalation opening pressure and measured inhalation opening pressure;According to first information and second information, qualified determination is carried out, and verification result is output.The application discloses breathing valve online verification method, device and storage medium, by obtaining valve temperature information, actively adjusting valve temperature to target temperature, executing pressure verification and carrying out qualified determination, fundamentally avoid the interference of ambient temperature to breathing valve, improve the accuracy and reliability of online inspection.

The application provides a dynamic simulation test method and system for the cycle life of a pressure reducing valve, and relates to the technical field of valve performance testing. The method comprises the following steps: installing the measured pressure reducing valve in a test pipeline, opening the inlet side valve and the outlet side pressure relief valve, manually adjusting the inlet pressure regulator to make the inlet pressure of the measured pressure reducing valve reach the maximum rated inlet air pressure, obtaining the measured pressure reducing valve with the set inlet pressure; on the basis of the measured pressure reducing valve with the set inlet pressure, adjusting the measured pressure reducing valve itself to make the outlet pressure reach the maximum rated outlet air pressure, obtaining the measured pressure reducing valve with the rated values of the inlet pressure and the outlet pressure; extracting the fluid-structure coupling geometric topology features and the real-time pressure gradient field of the measured pressure reducing valve with the rated values of the inlet pressure and the outlet pressure, and constructing a three-dimensional space discretization grid model. The application improves the test efficiency and reduces the test equipment investment of enterprises.

The utility model belongs to diaphragm detection technical field discloses a kind of pressure regulating valve diaphragm detection devices, for detecting the soundness of the diaphragm of pressure regulating valve, cavity is equipped in pressure regulating valve, diaphragm is located in cavity, this pressure regulating valve diaphragm detection device includes gas pressurization structure, gas transmission structure and pressure detection structure, gas pressurization structure is used to provide gas in cavity, pressure detection structure is used to detect and display the air pressure in pressure guide pipe. By gas pressurization structure, gas is pressed into the cavity of pressure regulating valve, gas flows into cavity through pressure guide pipe, when the value shown by pressure detection structure rises to certain value, stop pressing gas, observe the indication change condition of pressure detection structure, if the indication of pressure detection structure is stable, it is determined that diaphragm is sound, if the indication of pressure detection structure reduces, it is determined that diaphragm is damaged. Not only can the soundness of diaphragm be judged quickly and accurately, but also work efficiency can be improved significantly, and artificial cost and operation risk are reduced.

This utility model discloses a comprehensive valve life testing device, belonging to the technical field of valve testing devices. The device includes a gantry frame, a base at the bottom of the gantry frame, a valve body to be tested at the top of the base, and a first half-box and a second half-box positioned opposite each other on the outside of the valve body. A fixing component is located on the top of the base, and a testing component is located on the top of the gantry frame. The fixing component includes a fixed shell fixedly connected to the top edge of the base, a first clamping unit located on the side of the fixed shell, and a second clamping unit positioned opposite each other on the outside of the fixed shell. The testing component includes a movable frame mounted on the top of the gantry frame, a sliding plate located on the top of the movable frame, a first displacement unit located between the sliding plate and the movable frame, and a commutator located on the side of the sliding plate. A second displacement unit is located between the movable frame and the gantry frame. This utility model, through its fixing and testing components, offers convenient operation and improves testing efficiency.

The application relates to a valve maintenance device, in particular to a full-automatic valve maintenance vehicle, which aims to solve the problems that a large amount of manpower is consumed, the danger coefficient is high, and the valve core, the pipeline and the valve are easily damaged when the valve core of a high-pressure valve is manually maintained; the application comprises a chassis provided with wheels and driven by a driving device, a lifting mechanism installed on the chassis, and a screw plug disassembling mechanism and a valve core disassembling mechanism installed on the lifting mechanism; in the use process, the driving device drives the chassis, so that the full-automatic valve maintenance vehicle enters a maintenance station; the lifting mechanism lifts the screw plug disassembling mechanism to a specified position; the screw plug disassembling mechanism dismounts the valve screw plug; after being dismounted, the lifting mechanism lifts the valve core disassembling mechanism to a specified position, the valve core disassembling mechanism dismounts the valve core, so that maintenance and replacement are carried out, remote maintenance is realized, and the safety of the operators is protected.

This utility model relates to the field of safety valve technology and discloses an automatic assembly, pressure testing, and adjustment device for a safety valve. It includes a workbench, an automatic assembly machine fixedly mounted on the upper part of the workbench, a mounting frame fixedly mounted on the upper part of the workbench, a pressure testing chamber fixedly mounted on the upper part of the workbench, a pressure pump fixedly mounted on the upper part of the workbench, and a connecting assembly disposed on the upper part of the workbench. The connecting assembly includes a filter mechanism disposed on the upper part of the workbench. A fixing mechanism is disposed on the upper part of the workbench. The output end of the pressure pump is connected to the pressure testing chamber via an exhaust pipe, and the inlet pipe is connected to the input end of the pressure pump. This utility model solves the problem that existing pressure testing devices cannot filter the air pressure medium entering the pressure testing chamber when testing a safety valve, allowing impurities in the air to easily adhere to the pressure testing chamber and connecting pipes, thus affecting the subsequent use of the device.

A testing device for R744 supercritical and subcritical valves, relating to the technical field of refrigeration system valve testing, comprising a parallel compression assembly, a testing assembly and an auxiliary assembly, wherein the testing assembly is connected in series to the parallel compression assembly at both ends, and the auxiliary assembly is connected in series to the testing assembly; the testing assembly comprises a condenser (6) and a second gas cooler (7); a refrigerant outlet of an oil separator (4) is connected to both the condenser (6) and the second gas cooler (7) via a three-way joint, a refrigerant outlet of the condenser (6) is connected to a liquid storage tank (11), and a refrigerant outlet of the liquid storage tank (11) is connected to an inlet of the second gas cooler (7) via refrigerant piping; the second gas cooler (7) is sequentially connected to an oil heater (8), a valve under test (12) and a second evaporator (9) via refrigerant piping. The testing device enables automatic switching of the inlet and outlet flow directions of the valve under test (12) while eliminating the need to remove the valve under test (12), thereby facilitating frequent switching between forward and reverse directions during durability testing, and also allowing for performance testing of the valve under test (12) without the need to remove said valve.

The application discloses an aircraft fuel servo valve high-temperature test system and relates to the field of test systems.The system comprises a normal-temperature oil supply module, a high-pressure pump, a main heating and heat exchange module, a controller and an oil return shunt module.The normal-temperature oil supply module comprises an oil tank and a low-pressure booster pump, and the high-pressure pump is used for outputting high-pressure and high-temperature fuel;the main heating and heat exchange module is arranged between the high-pressure pump outlet and the fluid inlet of the measured valve and is used for heating the fuel to a preset test temperature;the oil return shunt module inlet is communicated with the oil return port of the measured valve, the first outlet is communicated with the high-pressure pump inlet, and the second outlet is communicated with the oil tank.The controller is connected with the main heating and heat exchange module and the oil return shunt module, is used for collecting two temperature signals, adjusting the heating power and the two outlet flow distribution, and maintaining the oil temperature after the high-temperature oil return and the normal-temperature fuel are mixed within the safety threshold of the high-pressure pump.The application solves the problem that the test system cannot continuously and stably operate due to the fact that the high-pressure pump cannot long-term bear extremely high-temperature fluid.

The utility model provides a kind of height valve performance test system, including gas supply unit, gas path execution unit, test tool and monitoring unit;Gas supply unit is configured as to gas path execution unit delivery gas;Gas path execution unit is configured as to adjust gas path pressure in gas path execution unit and control gas path on-off state in gas path execution unit;Test tool is configured as: fixedly installed the valve body of the height valve to be measured, and make gas path intercommunication between air spring interface and gas path execution unit, and drive control rod rotation;Monitoring unit includes flowmeter for monitoring the gas flow in the pipeline between gas path execution unit and test tool and pressure sensor for monitoring the pressure of air spring interface.The height valve performance test system provided by the utility model is simple in composition, convenient to operate, low in cost and suitable for rapid detection of the performance of the height valve to be measured beside train.

The utility model discloses a kind of rotary direction hydraulic unit pump motor valve testing devices, it is related to motor valve testing device technical field, the testing device includes device base, the upper end of device base is provided with display screen, the lower of display screen is provided with power switch, oil pump pilot lamp, low liquid level pilot lamp, rotational speed adjusting switch, pressure display table, host computer switch and oil pump switch;It further includes: test cylinder, it is set on the side position of the display screen, test cylinder is provided with three, and the upper end of test cylinder is provided with plug, the upper end of plug is connected and installed and is provided with connector seat;Three-way ball valve, it is set on the rear end position of the test cylinder, and the rear end surface of connector seat is connected and is provided with drive board joint, solve the equipment in the hydraulic system by the test cylinder of setting testing device and test, but test cylinder is inconveniently fixed in the process of testing motor pump, cause the problem of influence hydraulic system motor pump test efficiency.

This application relates to a pressure testing system and method for pipelines with nozzles in large-space cleanrooms, belonging to the category of nozzle pressure testing devices. The system includes a spray pipe, a pressure supply unit connected to the spray pipe, a nozzle connected to a nozzle riser, and a valve seat. The valve seat is located inside the nozzle riser and is threadedly connected to it. A first pressure sensor is installed on the valve seat to detect the pressure inside the nozzle. A water passage hole is provided on the valve seat, communicating with the nozzle. A pressure ring is slidably disposed within the water passage hole along the axial direction of the nozzle riser. A first elastic element connects the pressure ring and the valve seat, providing a force to move the pressure ring away from the nozzle. The pressure ring has an opening in the middle, and an opening / closing unit is provided at the opening to open or close it. This application offers the advantages of high monitoring accuracy and convenient operation.

This invention discloses a durability testing fixture for air valves in new energy vehicles, relating to the field of new energy vehicle testing technology. It includes a frame and a clamping assembly. The frame has symmetrically arranged grooves on its upper and lower inner walls. The testing assembly is located on one side of each groove. The clamping assembly includes a slide block, fixing bolts, locking bolts, an adjusting plate, a slide rail, a slider, a connecting rod, a sliding plate, and a clamping block. The slide block is engaged within the groove, and fixing bolts are symmetrically threaded onto both sides of the slide block. An adjusting plate is rotatably connected to one end of the slide block via a locking bolt. A slide rail is formed on the surface of the adjusting plate, and a slider is slidably connected within the slide rail. In use, this invention allows for adjustment of the device according to the shape of the air valve, enabling clamping and fixing of air valves of different shapes. The air valve can be tested immediately after processing. During the processing of the air valve, vibration can be applied to accelerate the process, thereby saving processing and testing time.

The embodiment of the specification discloses a kind of electric gate valve fault diagnosis method, device and equipment based on strong noise background, belong to the field of fault diagnosis, method includes: obtaining the acceleration signal of electric gate valve under strong noise background;First noise in electric gate valve acceleration signal is determined using variational mode decomposition model optimized based on satin blue gardener bird optimization algorithm;Remove first noise, obtain first reorganization acceleration signal;Second noise is removed, and second reorganization acceleration signal is obtained;Wherein, the frequency band where second noise is located is less than the frequency band where first noise is located;Based on second reorganization acceleration signal, the electric gate valve is fault diagnosed.This embodiment can accurately determine the first noise in electric gate valve acceleration signal using variational mode decomposition model optimized based on satin blue gardener bird optimization algorithm, and then most of noise can be removed from electric gate valve acceleration signal, improve the accuracy of fault diagnosis to electric gate valve.

This invention discloses a valve pressure testing machine, belonging to the technical field of valve pressure testing equipment. It includes a testing water tank, within which a vertically movable U-shaped seat is installed. Two opposing inner walls of the U-shaped seat are driven to an end plate assembly via telescopic components. The end plate assembly includes an end plate body with an annular sealing layer on its inner wall surface, and an air inlet pipe, an exhaust pipe, and a water inlet pipe are installed on the end plate body. The air inlet pipe connects to a high-pressure gas storage tank, and the exhaust pipe connects to a negative pressure pump. This invention, by integrating a high-pressure gas storage tank, a negative pressure pump, a liftable U-shaped seat, a snap-fit ​​sealing cover, controllable air inlet and outlet, and a tracer gas release and detection module integrated on the end plate, can sequentially complete five testing processes—negative pressure dry testing, negative pressure wet testing, positive pressure wet testing, positive pressure dry testing, and water flow testing—under a single clamping and automated process control, thus expanding the testing range.

The utility model provides a kind of differential pressure valve performance test system, including gas supply unit, gas path execution unit, fast plug sealing unit and pressure monitoring unit, fast plug sealing unit is used to seal and insert in the first end and second end of the differential pressure valve to be measured;Gas supply unit is configured to deliver gas to gas path execution unit;Gas path execution unit is configured to: adjust the pressure of first end and control the gas path on-off state of first end and gas supply unit, and control the gas path on-off state of second end and external atmosphere;Or, adjust the pressure of second end and control the gas path on-off state of second end and gas supply unit, and control the gas path on-off state of first end and external atmosphere;Pressure monitoring unit is configured to monitor the pressure of first end and second end.The utility model can quickly detect the performance parameter of the differential pressure valve to be measured, improve the test efficiency of differential pressure valve, simple structure, convenient operation, lower cost, facilitate in production line, laboratory and on-site maintenance and other multiple scenes popularization and application.

This application relates to the technical field of unsaturated water production, specifically disclosing a high-parameter unsaturated water production device, including a container one and a container two, connected by a connecting pipe. Container one is externally connected to a first steam pipe, and container two is externally connected to a second steam pipe. Container two is connected to an exhaust pipe and an external test pipe for installing a test valve. A high-parameter unsaturated water production method is also disclosed, specifically including the following steps: Step 1: Injecting a certain amount of saturated water into container one and container two respectively; Step 2: Introducing steam into container one and container two respectively, stabilizing the internal pressure of container one to P1, at which point the internal temperature of container one stabilizes to T1, allowing saturated water to fill container two, and stabilizing the internal pressure of container two to P2; Step 3: Connecting container one and container two; Step 4: Passing the medium in container two through the test valve. This application can produce high-temperature, high-pressure unsaturated water for unsaturated water testing of large-diameter valves.

This invention discloses a universal cryogenic valve heat leakage performance testing device and method, belonging to the field of valve testing technology. It includes: a cryogenic valve to be tested installed on the upper end of a cryogenic thermostat; the valve seat of the cryogenic valve to be tested connected to a valve heat exchanger via a pipe clamp; a first cold shield surrounding the valve seat; a valve support including a first flange adapted to different cryogenic valves to be tested; two cold shields installed inside the cryogenic thermostat, both with modular sidewall designs, flexibly adaptable to different cryogenic valves to be tested; two heaters connected to a temperature controller respectively installed on the heat sink and the pipe clamp; a GM refrigeration unit installed inside the cryogenic thermostat, including two-stage cold heads; a second cold shield surrounding the two-stage cold heads; a secondary cold head with a secondary heat exchanger connected to the valve heat exchanger; a helium supply device connected to the primary heat exchanger on the primary cold head; a helium recovery device connected to the valve heat exchanger; and a vacuum pump unit connected to the cryogenic thermostat. This invention improves testing efficiency and device utilization.

This application provides a method, apparatus, and electronic device for detecting solenoid valve faults in a fuel cell system, relating to the field of fuel cell technology. The method includes: when the auxiliary hydrogen injection is not in operation, comparing the current absolute pressure deviation with a set threshold to obtain a comparison result, where the absolute pressure deviation is the difference between the actual pressure and the theoretical pressure at the ejector inlet; based on the comparison result, determining whether both the exhaust valve and the drain valve have a normally open fault; if neither the exhaust valve nor the drain valve has a normally open fault, determining whether the drain valve has a normally closed fault based on the liquid level indicated by a liquid level sensor, and determining whether the exhaust valve has a normally closed fault based on the pressure change at the ejector inlet before and after the exhaust valve is opened. By employing the above-mentioned method, apparatus, and electronic device for detecting solenoid valve faults in a fuel cell system, the problems of low detection accuracy and high detection cost are solved.

The present application provides a stick-slip detection device, a stick-slip detection method and a storage medium, which can detect stick-slip with good accuracy. The stick-slip detection device (100) is characterized in that it comprises: a measurement unit (131) configured to measure the displacement of a movable part having a contact sliding part; a determination unit (132) configured to determine an interval in which the sign of the difference between the measured value of the movable part measured by the measurement unit (131) and the set value of the movable part does not change within a specified period; a calculation unit (133) configured to calculate an index value based on the measured value of the movable part and the set value of the movable part in the interval determined by the determination unit (132); and a detection unit (134) configured to detect an abnormality of the movable part when the index value calculated by the calculation unit (133) is greater than or equal to a specified threshold value.

The present disclosure relates to a high-temperature valve testing system, comprising: a steam generator configured to be capable of generating saturated steam and controlling the saturated steam to be output at a first preset pressure and a first preset temperature; a superheater, an inlet of the superheater being communicated with an outlet of the steam generator, the superheater being configured to be capable of receiving the saturated steam and controlling the saturated steam to be output at a second preset temperature; a testing unit, comprising a testing pipeline, an inlet of the testing pipeline being communicated with an outlet of the superheater, the testing pipeline being provided with a mounting position for mounting a valve to be tested, a temperature control assembly for adjusting a temperature of the testing pipeline, and a pressure control assembly for adjusting a pressure of the testing pipeline; and a controller, the controller being signal-connected with the steam generator, the superheater, the temperature control assembly, the pressure control assembly, and the valve to be tested, respectively. In this way, the valve to be tested can be tested at different temperatures and different pressures, the testing is more accurate and closer to the actual working state of the valve, and the testing result is reliable.

The application relates to a portable data acquisition device for safety valve calibration, which comprises a shell with a first accommodating space and a first opening, an operation panel is arranged at the first opening, the operation panel is provided with a second opening, an industrial computer is installed at the second opening, a power supply assembly and an acquisition part are arranged in the shell, the power supply assembly is electrically connected with the industrial computer, the acquisition part is electrically connected with the industrial computer and the power supply assembly, a pressure sensor interface is arranged on the operation panel, and the pressure sensor is electrically connected with the acquisition part. Through the above structural combination, the portable data acquisition device realizes integrated packaging of the industrial computer, the acquisition part, power supply and the interface, solves the problems of large reading error, low recording efficiency and difficult data tracing in the existing calibration, and improves the calibration automation degree, the acquisition precision and the system reliability.

This invention provides a fault detection method, system, device, and storage medium for pneumatic control valves, belonging to the field of industrial process fault detection. The method includes: introducing a nonlinear modeling approach based on Gaussian process regression (GPR) into the fast layer to construct the flow coefficient C. V A high-precision nonlinear model is used, whose residual statistics can sensitively capture transient anomalies in control valve performance that deviate from expectations. In the slow layer, Activity-KSFA, a kernel-based slow feature analysis, is employed to effectively extract slowly varying features during system degradation, and T² statistics are used for slow anomaly detection. Finally, a dual-threshold and continuous decision mechanism is combined to suppress false alarms while maintaining high sensitivity. Simulation results on the DAMADICS platform show that C... V While achieving zero false alarms, the residual maintains a detection rate of over 98% for most typical faults, complementing the T² statistic and significantly enhancing the adaptability of this invention to different fault modes.

The application discloses a kind of multistage parallel liquid cooling path dynamic allocation system, and it is related to electronic equipment heat dissipation technical field.System includes liquid cooling execution network, temperature sensing network and controller.Liquid cooling execution network has multiple parallel cooling branches with independent electrically controlled valve, and different subareas of cooling object are corresponded respectively.Temperature sensing network collects temperature data.Controller executes following method: data is collected and temperature distribution map is generated;Calculate the average temperature of each subarea, and identify the first type of region of high temperature and the second type of region of low temperature;Cooling demand increment of the first type of region and releasable flow of the second type of region are calculated;With the constraint such as satisfying total flow conservation, and making predicted temperature overall optimal as target, the flow adjustment amount of each branch is solved;Finally, drive valve to execute adjustment.The application dynamically allocates parallel branch flow by software-defined manner, realizes the spatial distribution of cooling capacity according to heat load, solves the problem of uneven heat dissipation, and improves heat dissipation efficiency.

The utility model belongs to fuel injection valve manufacturing equipment field, propose a kind of valve body detection symmetry degree frock, including fixed base, the bottom of fixed base is provided with support seat, positioning groove for placing fixed base is provided on support seat, 2 workpiece positioning pins are provided on fixed base, workpiece positioning pin is used to cooperate with the valve hole of workpiece, the opposite side of fixed base is provided with upper pressing plate, and upper pressing plate is connected with fixed base by a pair of clamping positioning pin, detection jack hole corresponding to the valve hole of workpiece is provided on upper pressing plate, detection pin is provided in detection jack hole. The utility model is installed fixed base by support seat with inclination angle, two symmetrical valve holes of workpiece positioning pin and valve body cooperate, make the hole to be detected of valve body vertically upward;Clamping positioning pin provides clamping direction for upper pressing plate to fix valve body, by detection pin vertically inserted detection jack hole and inquired into the hole to be detected of valve body, and detection is completed. The device can unified measuring means, and improve measurement efficiency.

The application discloses a hydraulic valve test bench and relates to the technical field of hydraulic valve testing. The hydraulic valve test bench comprises a workbench, a control component is fixedly connected to the outer wall of the workbench, and an external testing mechanism is fixedly connected to the accommodating space of the workbench. The hydraulic valve test bench is characterized in that the suction pipe and the discharge pipe are both communicated to the sundry box through the flushing assembly, forming a closed circulation system. During testing, the impurity mixture is pumped into the upper cover space by the air blower to impact the valve, and then is returned to the sundry box for repeated use, thereby significantly reducing the cost of testing consumables. The test mechanism adopts mechanical extrusion type water pressure. The rotating part drives the guide screw rod to push the sliding block, so that the valve extrudes the zigzag pipe filled with water. The display assembly projects light rays to the bottom of the valve through a spotlight, and the light rays are enlarged and imaged on the black curtain through the light transmission lens. If the valve is pressed to generate a micro crack, the change of the light ray path will form an obvious abnormal light spot on the curtain, thereby realizing real-time visual identification of the micro crack.

The application relates to a non-invasive main pressure regulating valve stroke measurement system and method, and belongs to the technical field of displacement measurement. The application comprises: a main pressure regulating valve comprising a main pressure regulating valve body, a main pressure regulating valve spool slidably connected in the main pressure regulating valve body, and a first displacement sensor for measuring the stroke of the main pressure regulating valve spool; a servomotor comprising a servomotor shell, a servomotor piston rod, and a second displacement sensor for measuring the stroke of the servomotor piston rod; and a controller for controlling the conversion of the main pressure regulating valve from a middle position to an on position or an off position, and calculating the displacement speed of the servomotor according to the measured value of the second displacement sensor, and obtaining the value of the first displacement sensor as the on-side stroke or the off-side stroke when the displacement speed exceeds a preset threshold value. According to the application, when the displacement speed of the servomotor exceeds the preset threshold value, it is determined that the main pressure regulating valve is just at the on position or the off position, and the value of the first displacement sensor is the on-side stroke or the off-side stroke, thereby improving the work efficiency.

The present application relates to a kind of bellows stop valve and detection device.The bellows stop valve and detection device, wherein the bellows stop valve includes top flange, side flange and the inner hole and outer hole arranged in it, the inner hole and outer hole coaxial center are arranged;The detection device of the bellows stop valve in it, for the quality detection of the above-mentioned bellows stop valve, including frame structure, the frame structure is connected with conveying belt body, the surface of the conveying belt body is spaced apart and is provided with slot, valve assembly is placed on the surface of conveying belt body, and the control valve port of valve assembly is communicated with slot, detection assembly is also provided in the frame structure, the detection assembly includes liftable detection shell, the detection shell includes bearing shell, the surface of the bearing shell is connected with clamping portion;The bellows stop valve and detection device, simple structure, convenient operation, flexible use, facilitate valve detection use.

Cavitation detection system for detecting cavitation in a hydraulic system, the detection system comprising a first temperature sensor configured to be positioned at a first position in the hydraulic system; a second temperature sensor configured to be position at a second position in the hydraulic system, the second position being downstream of the first position; a control unit configured to receive the temperature values sensed by the first and second temperature sensors and configured to, if a temperature difference is detected, issue a cavitation detection signal.

Disclosed is a service life test apparatus for production of a diaphragm of a diaphragm compressor. The apparatus includes a bottom frame, a test diaphragm head, an oil pressure boosting assembly, a gas pressure boosting assembly and a driving assembly. The test diaphragm head is installed on the bottom frame and is configured to fix the diaphragm. A support frame is installed on the bottom frame. The oil pressure boosting assembly and the gas pressure boosting assembly are installed at positions of two sides of the support frame. Through the arrangement of the test diaphragm head, the pressure boosting assemblies and the driving assembly, a test load may be exerted onto the diaphragm by using gas pressure and oil pressure, and an actual work environment, the received load magnitude and the load distribution condition of the diaphragm may be simulated, so that test results may be more accurate.