Portable dual-mode valve detection equipment and use method

Abstract

The invention relates to portable dual-mode valve detection equipment and a use method, and belongs to the field of valve detection. Comprising a control system module, a measurement module, a pressurization module and a wastewater management module, and the pressurization module comprises a water tank, a ball valve, a filter, a gas-liquid booster pump and an energy accumulator. The wastewater management module is used for managing and recycling wastewater flowing into the system from the water tank; one end of the ball valve is communicated with an outlet of the water tank and used for controlling output of the water tank; the other end of the ball valve is communicated with the filter; the gas-liquid booster pump communicates with the end, away from the ball valve, of the filter and is used for providing a pressure source for the energy accumulator in a high-pressure interval. The energy accumulator is communicated with the end, away from the filter, of the gas-liquid booster pump and used for maintaining the stability of a pipeline system and reducing the phenomena of pulse, vibration and the like. The equipment can perform dual-mode detection on various valves, is wide and stable in test pressure range, can better meet the requirements of convenience and high efficiency, and is suitable for various application scenes.

Description

Technical Field

[0001] The invention belongs to the field of valve detection, and in particular relates to a portable dual-mode valve detection device and a use method. Background Art

[0002] Valves are control components in pipeline transportation systems and have a wide range of applications, including chemical, petroleum, energy, etc. From the simplest stop valve to the various valves used in extremely complex automatic control systems, there are quite a variety of varieties and specifications, including ball valves, butterfly valves, valves, stop valves, check valves, regulating valves, safety valves, plug valves, diaphragm valves, etc., which play the role of cutting off, regulating, and checking in pipeline systems. In pipeline transportation systems in various fields, valves are the main equipment that needs to be repaired, so valve sealing detection is an indispensable part. It is necessary to determine whether the sealing performance of each valve meets the standard and detect the leakage of the valve to identify the valves that need to be replaced or repaired to ensure the safety and reliability of the system.

[0003] In actual usage scenarios, pipelines are complex. At present, the equipment that can detect valve sealing (medium: water) is mainly divided into two types. The first type is simple portable detection equipment. This type of equipment is small in size and is used for online detection. The pressure testing process requires manual control, and it is impossible to record and store test parameters and test results. It has a single function and complex operation. The other type is automated valve sealing detection equipment. Although the detection process can be completed automatically, the equipment is large in size and heavy in weight, and cannot be portable. It can only be used for offline detection. Therefore, the valve needs to be manually disassembled to the equipment for testing. The process is very cumbersome and consumes a lot of manpower, material resources and time. And for some common detection scenarios, it is even necessary to manually calculate and verify the leakage. In the manual calculation process, due to the influence of external environmental factors during the detection process, the collected data has a great influence on the parameter values ​​needed for the calculation results. Whether it is a portable valve sealing detection equipment or an automated valve sealing detection equipment, both of them use the sealing detection method of measuring the pressure drop value and calculating the leakage rate based on the pressure drop value. The measurement results are not accurate and intuitive, and the results are affected by many factors, such as the volume of the valve pressure chamber, the temperature of the medium, etc. In view of the increasingly rich processing and production use scenarios, it is necessary to use detection equipment to perform more accurate micro-leakage rate detection on pipeline valves, so as to comprehensively evaluate whether the working status of valves and pipelines can continue to work, whether it directly affects production, and there are many valves and pipelines that are not easy to disassemble, which need to be tested online.

[0004] The patent with announcement number: CN113790852B discloses a detection method for a detection device for detecting the performance of a pressure reducing valve, including: a gas-driven pressure-reducing device, a hydrogenation port, a one-way valve, a 35MPa high-pressure gas storage cylinder, a filter, a volume flow meter, a plurality of pressure gauges, a plurality of valves and a gas pipeline system; a leak-lock detection pipeline is formed between the gas-driven pressure-reducing device, the hydrogenation port, the one-way valve, a first high-pressure hydrogen pressure reducing valve to be tested, a second high-pressure hydrogen pressure reducing valve to be tested, each valve, and the gas pipeline system; a flow-pressure detection pipeline is formed between the 35MPa high-pressure gas storage cylinder, the filter, the first high-pressure hydrogen pressure reducing valve to be tested, the second high-pressure hydrogen pressure reducing valve to be tested, the volume flow meter, each valve, and the gas pipeline system.

[0005] The detection method of the prior art has at least the following problems during use:

[0006] When using gas cylinders to provide pressure during equipment testing, there are fluctuations in test results due to gas compression, and the trace detection coverage of valves using high-pressure gas cylinders is not good enough. In addition, such devices in the prior art are not convenient enough and are not suitable for complex detection environments. Summary of the invention

[0007] The present invention provides a portable dual-mode valve detection device and a method of use, which are used to solve the technical problems in the prior art that test results fluctuate due to the use of gas cylinders to provide pressure, the high-pressure gas cylinder test has insufficient coverage of trace detection of valves, and the device is not convenient enough.

[0008] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0009] A portable dual-mode valve detection device includes a control system module, a measurement module, a boost module, and a wastewater management module. The measurement module, the boost module, and the wastewater management module form a circuit for detection, and the circuit is used to detect the pressure drop and leakage in two environments of low pressure range and high pressure range; the boost module includes: a water tank, a ball valve, a filter, a gas-liquid boost pump, and an accumulator. The water tank has an outlet, and the wastewater management module is used to manage and recover the wastewater flowing into the system from the water tank; one end of the ball valve is connected to the outlet of the water tank, and is used to control the output of the water tank; the other end of the ball valve is connected to the filter; the gas-liquid boost pump is connected to the end of the filter away from the ball valve, and is used to provide a pressure source for the accumulator in the high pressure range; the accumulator is connected to the end of the gas-liquid boost pump away from the filter, and is used to maintain the stability of the pipeline system and reduce pulses and vibrations.

[0010] Furthermore, the measuring module includes: an air-controlled ball valve A, an electromagnetic valve, an air source pressure regulating valve, a two-piece, a gas-liquid booster, an air-controlled pressure reducing valve, a pressure transmitter A, an electric proportional valve, a mass flow meter, a pressure transmitter B, a test outlet, an air source inlet, an air-controlled ball valve B, a pressure transmitter C, and an air-controlled ball valve C. The air-controlled ball valve A is connected to the end of the accumulator away from the gas-liquid booster pump; the solenoid valve is connected to the control system module through the cable A, and the solenoid valve is communicated with the air-controlled ball valve A and the gas-liquid booster pump; the air source pressure regulating valve is connected to the solenoid valve for controlling the pressure of the input air source; the two-piece is mainly used to control the driving pressure of the gas-liquid booster pump; the gas-liquid booster is connected to the air-controlled ball valve A, and the air-controlled ball valve A is used to open the valve to inject water and exhaust air to the pipeline and the gas-liquid booster during the low-pressure interval test. The gas-liquid booster provides system pressure when testing the low-pressure interval, and the gas-liquid booster is communicated with the solenoid valve; the air-controlled pressure reducing valve is connected to the outlet end of the accumulator, and the air-controlled pressure reducing valve is communicated with the solenoid valve; the pressure transmitter A is arranged between the air source pressure regulating valve and the electrical proportional valve for collecting and displaying the intake pressure parameters; the electrical proportional valve is connected to the air-controlled pressure reducing valve, and under the action of the electrical proportional valve, the air-controlled pressure reducing valve is adjusted in real time System pressure, maintains the stability of system pressure, and the electric proportional valve is connected to the outlet end of the air source pressure regulating valve, and is connected to the control system module through the cable A; the mass flow meter is connected to the control system module through the cable A, and is used to collect and display leakage parameters; the pressure transmitter B is connected to the mass flow meter, and is used to collect and display the actual pressure parameters during the test; the test outlet is connected to the mass flow meter, and is connected to the test piece during the test; the air source inlet is connected to the two-piece; the air-controlled ball valve B is installed between the mass flow meter and the air-controlled pressure reducing valve, and the pressure transmitter B is located between the air-controlled ball valve B and the mass flow meter, and the air-controlled ball valve B is communicatively connected to the solenoid valve; the pressure transmitter C is located between the accumulator and the air-controlled pressure reducing valve, and is used to collect and display the accumulator pressure value; the air-controlled ball valve C is connected to the test outlet, and is used to realize the exhaust, water injection process and pressure relief process, and the air-controlled ball valve C is communicatively connected to the solenoid valve.

[0011] Furthermore, the control system module is connected to the measurement module through cables A and B, which are mainly used to provide power and collect signals. The control system module includes: a computer and an electrical module. The electrical module is connected to the computer for communication, controls the electrical module and collects relevant data.

[0012] Furthermore, the wastewater management module includes: a water pump and a wastewater tank. The water pump inlet is connected to the water source outlet of the air-controlled ball valve C through a return pipe; the wastewater tank inlet is connected to the water pump outlet, which is mainly used for wastewater treatment after the test.

[0013] Furthermore, it also includes: armrests and casters. Each module is designed with its own armrest, and the electrical module and the measurement module can be combined and stacked; the casters are respectively installed at the bottom of each module box, so that the equipment has the function of convenient movement.

[0014] A method of use comprises the following steps:

[0015] S1. Transport multiple modules to the area to be tested and connect the components;

[0016] S2, turning on the power supply, starting the control system module and supplying power to related components;

[0017] S3, setting test parameters in the control software of the computer, and connecting the test piece to the test outlet;

[0018] S4, measuring the leakage amount, and recording the leakage amount by the computer;

[0019] S5, measuring the pressure drop, and recording the pressure drop by the computer;

[0020] S6. Recycle the wastewater, close the corresponding nodes through the control system module, and generate a pressure-time curve graph, a leakage-time curve graph, and a test report.

[0021] Further, the S4 includes:

[0022] S41, when the leakage test is performed on the low pressure interval, the gas-liquid booster works to exhaust the air in the system, the air-controlled ball valve B is opened, the system is pressurized by controlling the gas-liquid booster to work, and the computer records the leakage;

[0023] S42. When the leakage test is performed on the high pressure interval, the gas-liquid booster pump works to exhaust the air in the system, increase the accumulator pressure, open the air-controlled ball valve B, adjust the pressure of the pressure reducing valve, and the computer records the leakage.

[0024] Further, the S5 includes:

[0025] S51, when measuring the pressure drop in the low pressure interval, the gas-liquid booster works to exhaust the air in the system, the gas-liquid booster works to increase the pressure, the gas-controlled ball valve B is closed, and the computer records the pressure drop;

[0026] S52. When measuring the pressure drop in the high pressure interval, the gas-liquid booster pump works to exhaust the air in the system, increase the accumulator pressure, open the air-controlled ball valve B, adjust the pressure of the pressure reducing valve, close the air-controlled ball valve B, and the computer records the pressure drop.

[0027] The present invention provides a portable dual-mode valve detection device and a method of use, which have the following beneficial effects:

[0028] 1. By setting up a multi-module split setting for the entire equipment, the convenience of the equipment and system during use is improved. By setting up a gas-liquid booster pump, the gas compression caused by the use of gas cylinders is reduced, which causes the pressure fluctuation provided by the system. By setting up a basic measurement module and an independent booster module, the system is tested separately in low-pressure and high-pressure ranges, which improves the test accuracy in the low-pressure range, improves the stability of the system pressure in the high-pressure range, and reduces the test error.

[0029] 2. By separately setting a gas-liquid booster for the measuring module, the measuring module can independently provide a pressure source for the low-pressure test environment during the valve testing process, thereby reducing the pressure fluctuation in the system and enabling the equipment to perform precise testing of trace leaks.

[0030] 3. By setting up electrical modules and computers, the test data can be quickly collected and recorded, and the external environment can be monitored by multiple sensors to dynamically adjust the reference of corresponding parameters, further improving the intuitive conversion of leakage and pressure drop during use of the equipment, thereby improving convenience and reliability.

[0031] 4. By setting up wastewater tanks and water pumps, the water in the system can be collected and centrally treated to reduce pollution to the environment and further improve the equipment's adaptability to usage scenarios.

[0032] 5. By providing handrails and casters for each independent module, the convenience of manual movement is improved, and the low efficiency caused by the difficulty of transporting the equipment itself and the harsh requirements of the equipment on the environment are reduced.

[0033] 6. By testing the leakage and pressure drop of the equipment itself during use, and performing partition tests in low-pressure and high-pressure intervals in two modes, the equipment and system can inspect the valve more comprehensively and the test data more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of a portable dual-mode valve detection device of the present invention;

[0036] Figure 2 It is a structural schematic diagram of a portable dual-mode valve detection device of the present invention;

[0037] Figure 3 It is another structural schematic diagram of a portable dual-mode valve detection device of the present invention.

[0038] As shown in the figure:

[0039] 1- water tank; 2- ball valve; 3- filter; 4- gas-liquid booster pump; 5- accumulator; 6- high-pressure hose; 7- return pipe; 8- driving air pipe; 9- pump power cord; 10- cable A; 11- cable B; 12- power cord; 13- air-controlled ball valve A; 14- solenoid valve; 15- air source pressure regulating valve; 16- two-piece; 17- gas-liquid booster; 18- gas-controlled pressure reducing valve; 19- pressure transmitter A; 20- Electric proportional valve; 21-mass flow meter; 22-pressure transmitter B; 23-test outlet; 24-air source inlet; 25-air-controlled ball valve B; 26-pressure transmitter C; 27-air-controlled ball valve C; 28-water pump; 29-wastewater tank; 30-computer; 31-electrical module; 32-castor; 100-control system module; 200-measurement module; 300-boosting module; 400-wastewater management module. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0041] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be welding, bolt connection, or riveting; it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] Example:

[0045] Please refer to Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a portable dual-mode valve detection device, including a control system module 100, a measurement module 200, a boosting module 300, and a wastewater management module 400. The boosting module 300 includes: a water tank 1, a ball valve 2, a filter 3, a gas-liquid boosting pump 4, and an accumulator 5. The water tank 1 has an outlet, and the wastewater management module 400 is used to manage and recover the wastewater flowing into the system from the water tank 1; one end of the ball valve 2 is connected to the outlet of the water tank 1, and is used to control the output of the water tank 1; the other end of the ball valve 2 is connected to the filter 3; the gas-liquid boosting pump 4 is connected to the end of the filter 3 away from the ball valve 2, and is used to provide a pressure source for the accumulator 5 in the high pressure range; the accumulator 5 is connected to the end of the gas-liquid boosting pump 4 away from the filter 3, and is used to maintain the stability of the pipeline system and reduce pulses and vibrations.

[0046] In this embodiment, the low pressure interval is 0-5Mpa, the high pressure interval is 5-25Mpa, the filter 3 is connected to the water source inlet end of the gas-liquid booster pump 4, the water source outlet end of the gas-liquid booster pump 4 is connected to the inlet end of the accumulator 5, and the gas source inlet 24 end of the gas-liquid booster pump 4 is connected to the outlet end of the two-piece 16 through an air pipe, which is mainly used to provide a pressure source for the accumulator 5 at 5-25Mpa to maintain the pressure of the accumulator 5. The outlet end of the accumulator 5 is connected to the water source inlet end of the air-controlled pressure reducing valve 18 through a high-pressure hose 6. The equipment is divided into four independently movable modules with a small total volume and light weight. Each module can be easily carried by one person or at most two people. The equipment can be pushed directly to the site, and the relevant tests of the valve can be directly carried out through quick connection, which meets the characteristics of portability and can meet the requirements of online detection. The present invention is equipped with some valve fixtures, and the valve can also be tested offline.

[0047] Further, in some implementations of this embodiment, Figure 1As shown, the measuring module 200 includes: an air-controlled ball valve A13, a solenoid valve 14, an air source pressure regulating valve 15, a two-piece 16, a gas-liquid booster 17, an air-controlled pressure reducing valve 18, a pressure transmitter A19, an electric proportional valve 20, a mass flow meter 21, a pressure transmitter B22, a test outlet 23, an air source inlet 24, an air-controlled ball valve B25, a pressure transmitter C26, and an air-controlled ball valve C27. The air-controlled ball valve A13 is connected to the end of the accumulator 5 away from the gas-liquid booster pump 4; the solenoid valve 14 is connected to the control system module 100 through the cable A10, and the solenoid valve 14 is connected to the air-controlled ball valve A13 and the gas-liquid booster pump 4; the air source pressure regulating valve 15 is connected to the solenoid valve 14 to control the pressure of the input air source; the two-piece 16 is mainly used to control the driving pressure of the gas-liquid booster pump 4; the gas-liquid booster 17 is connected to the air-controlled ball valve A13, and the air-controlled ball valve A13 is used to open the valve to the pipeline during the low-pressure interval test The gas-liquid booster 17 is filled with water and exhausted. The gas-liquid booster 17 provides system pressure when testing the low pressure range. The gas-liquid booster 17 is connected to the electromagnetic valve 14 for communication. The gas-controlled pressure reducing valve 18 is connected to the outlet of the accumulator 5. The gas-controlled pressure reducing valve 18 is connected to the electromagnetic valve 14 for communication. The pressure transmitter A19 is arranged between the gas source pressure regulating valve 15 and the electric proportional valve 20 to collect and display the intake pressure parameters. The electric proportional valve 20 is connected to the gas-controlled pressure reducing valve 18. Under the action of the electric proportional valve 20, the gas-controlled pressure reducing valve 18 is in real time. Adjust the system pressure to keep the system pressure stable, and the electric proportional valve 20 is connected to the outlet of the gas source pressure regulating valve 15, and is connected to the control system module 100 through the cable A10; the mass flow meter 21 is connected to the control system module 100 through the cable A10, and is used to collect and display the leakage parameters; the pressure transmitter B22 is connected to the mass flow meter 21, and is used to collect and display the actual pressure parameters during the test; the test outlet 23 is connected to the mass flow meter 21, and is connected to the test piece during the test; the gas source inlet 2 4 is connected to the two-piece 16; the air-controlled ball valve B25 is installed between the mass flow meter 21 and the air-controlled pressure reducing valve 18, the pressure transmitter B22 is located between the air-controlled ball valve B25 and the mass flow meter 21, and the air-controlled ball valve B25 is communicatively connected to the solenoid valve 14; the pressure transmitter C26 is located between the accumulator 5 and the air-controlled pressure reducing valve 18, and is used to collect and display the accumulator pressure value; the air-controlled ball valve C27 is connected to the test outlet 23, and is used to realize the exhaust, water injection process and pressure relief process, and the air-controlled ball valve C27 is communicatively connected to the solenoid valve 14.

[0048] In this embodiment, if Figure 1As shown, the water source inlet end of the air-controlled ball valve A13 is connected to the outlet end of the accumulator 5, and the water source outlet end of the air-controlled ball valve A13 is connected to the water source inlet end of the gas-liquid booster 17, which is used to open the valve to inject water and exhaust air to the pipeline and the gas-liquid booster 17 during the 0-5Mpa test; the solenoid valve 14 is connected to the electrical module 31 through the cable A10, and the gas source inlet 24 end of the solenoid valve 14 is connected to the outlet end of the gas source pressure regulating valve 15, and the gas source outlet end of the solenoid valve 14 is connected through the air pipe to control the specific actions of the air-controlled ball valve A13, the air-controlled ball valve B25, the air-controlled ball valve C27, the gas-liquid booster pump 4, the gas-liquid booster 17, and the air-controlled pressure reducing valve 18 in the system; the inlet end of the gas source pressure regulating valve 15 is connected to the gas source inlet 24, which is mainly used to control the pressure of the input gas source to ensure that the input pressure is 6-8bar; the two-piece 16 is connected to the gas source inlet 24, mainly used to control the pressure of the input gas source To be used to control the driving pressure of the gas-liquid booster pump 4; the water source outlet end of the gas-liquid booster 17 is connected to the water source inlet end of the air-controlled ball valve B25, and its main function is to provide system pressure when testing the 0-5Mpa pressure range; the water source inlet end of the air-controlled pressure reducing valve 18 is connected to the outlet end of the accumulator 5, the water source outlet end of the gas-controlled pressure reducing valve 18 is connected to the water source inlet end of the air-controlled ball valve B25, and the gas source inlet 24 end of the gas-controlled pressure reducing valve 18 is connected to the gas source outlet end of the electric proportional valve 20. Under the action of the electric proportional valve 20, the system pressure is adjusted in real time to maintain the stability of the system pressure. The boosting ratio of the gas-liquid booster 17 is 1:10, and the boosting multiple of the gas-liquid booster 17 is not high, so it is small in size and light in weight. Since the leakage of general valves is not large, the test can be completed within one stroke of the gas-liquid booster 17, and the pressure value is very stable with almost no fluctuation.

[0049] During the test of the pressure in the range of 0-5Mpa, the gas-liquid booster 17 reciprocates to send the water pump 28 in the water tank 1 into the system until the air in the system pipeline and the test valve cavity is exhausted, then the air-controlled ball valve A13 is closed, the air-controlled ball valve B25 is opened, the air-controlled pressure reducing valve 18 is closed, and the air-controlled ball valve C27 is closed. The gas-liquid booster 17 works, and the electrical proportional valve 20 adjusts the input gas source pressure of the gas-liquid booster 17 according to the pressure parameters collected by the pressure transmitter so that the gas-liquid booster 17 boosts the pipeline. After the pressure rises to the test pressure, the computer 30 starts to record the parameters of the flow meter to obtain the instantaneous leakage and the cumulative leakage, especially the capture and recording of the small leakage. With the cooperation of the electrical proportional valve 20 and the gas-liquid booster 17, the system pressure can be continuously compensated to maintain the system pressure stable.

[0050] When the test pressure is in the range of 5-25Mpa, under the control of the electrical module 31, the gas-liquid booster pump 4 reciprocates to send the water pump 28 in the water tank 1 into the system. At this time, each gas-controlled ball valve 2 is in an open state. After a certain period of time, the air in the system pipeline and the test valve cavity is exhausted. Then close all the gas-controlled ball valves 2, and the gas-liquid booster pump 4 continues to work, raising the pressure of the accumulator 5 to about 25Mpa, and then open the gas-controlled ball valve B25. The electrical proportional valve 20 will adjust the gas source pressure of the gas-controlled pressure reducing valve 18 according to the pressure parameters collected by the pressure transmitter, thereby adjusting the pressure reducing valve to reduce the pressure to the test pressure value. During this process, the gas-liquid booster 17 does not work. When the pressure reaches the test pressure, the gas-controlled ball valve B25 is closed, and the computer 30 starts to process the data.

[0051] Further, in some implementations of this embodiment, Figure 2 , Figure 3 As shown, the control system module 100 is connected to the measurement module 200 through cables A10 and B11, which are mainly used to provide power and collect signals. The control system module 100 includes: a computer 30 and an electrical module 31. The electrical module 31 is connected to the computer 30 for communication, and controls the electrical module 31 and collects relevant data.

[0052] In this embodiment, the control software controls the electrical module 31 and collects relevant data, including test data such as pressure parameters and flow parameters. Through the control of the computer 30, the electrical automation is high, the entire test process is automatically carried out, the water filling and exhaust time and the pressure holding time can be freely set, and the single-stage or multi-stage pressure holding test can be arbitrarily set during the test, which is convenient and fast.

[0053] Further, in some implementations of this embodiment, Figure 1 As shown, the wastewater management module 400 includes: a water pump 28 and a wastewater tank 29. The inlet of the water pump 28 is connected to the water source outlet of the air-controlled ball valve C27 through the return pipe 7; the inlet of the wastewater tank 29 is connected to the outlet of the water pump 28, which is mainly used for the treatment of wastewater after the test.

[0054] In this embodiment, when the test is completed, the air-controlled ball valve B25 is closed and the air-controlled ball valve C27 is opened. After the pressure in the test piece cavity is released, the water pump 28 is turned on to pump the waste water in the pipeline and the cavity back to the waste water tank 29.

[0055] Further, in some implementations of this embodiment, Figure 2 , Figure 3 As shown, it also includes: armrests and casters 32. Each module is designed with armrests, and the electrical module 31 and the measuring module 200 can be combined and stacked; the casters 32 are respectively installed at the bottom of each module box, so that the equipment has the function of convenient movement.

[0056] In this embodiment, if Figure 1 As shown,

[0057] Please refer to Figure 1 As shown, this embodiment provides a method of use, comprising the following steps:

[0058] S1. Transport multiple modules to the area to be tested and connect the components;

[0059] S2, turning on the power supply, starting the control system module 100 and supplying power to related components;

[0060] S3, setting the pressure parameters, test time, overpressure protection and other parameters for the test in the control software of the computer 30, and connecting the test piece to the test outlet 23;

[0061] S4, measuring the leakage amount, and recording the parameters of the flow meter through the computer 30;

[0062] S5, measuring the pressure drop, and recording the starting and ending pressure parameters through the computer 30;

[0063] S6. Recycle the wastewater, close the corresponding nodes through the control system module 100, and generate a pressure-time curve graph, a leakage-time curve graph, and a test report.

[0064] Furthermore, S4 includes:

[0065] S41, when the leakage test is performed on the low pressure interval, the gas-liquid booster 17 works to exhaust the air in the system, the air-controlled ball valve B25 is opened, the system is pressurized by controlling the gas-liquid booster 17 to work, and the computer 30 records the flow meter parameters;

[0066] S42. When the leakage test is performed on the high pressure interval, the gas-liquid booster pump 4 works to exhaust the air in the system, increase the pressure of the accumulator 5, open the air-controlled ball valve B25, adjust the pressure of the pressure reducing valve, and the computer 30 records the flow meter parameters.

[0067] Furthermore, S5 includes:

[0068] S51, when measuring the pressure drop in the low pressure interval, the gas-liquid booster 17 works to exhaust the air in the system, the gas-liquid booster 17 works to increase the pressure, the gas-controlled ball valve B25 is closed, and the computer 30 records the starting and ending pressure parameters;

[0069] S52. When measuring the pressure drop in the high pressure interval, the gas-liquid booster pump 4 works to exhaust the air in the system, increase the pressure of the accumulator 5, open the air-controlled ball valve B25, adjust the pressure of the pressure reducing valve, close the air-controlled ball valve B25, and the computer 30 records the starting and ending pressure parameters.

[0070] When using a portable dual-mode valve detection device, in the leakage measurement mode: when the test pressure is in the range of 0-5Mpa, under the control of the electrical module 31, the gas-liquid booster 17 reciprocates to send the water pump 28 in the water tank 1 into the system, exhausting the air in the system pipeline and the test valve cavity, closing the air-controlled ball valve A13, opening the air-controlled ball valve B25, closing the air-controlled pressure reducing valve 18, closing the air-controlled ball valve C27, opening the gas-liquid booster 17, and the electrical proportional valve 20 will adjust the gas-liquid boost pressure according to the pressure parameters collected by the pressure transmitter. The input gas source pressure of the booster 17 makes the gas-liquid booster 17 boost the pipeline. After the pressure rises to the test pressure, the computer 30 starts to record the parameters of the flow meter. The specific flow meter is a micro flow meter used to test precise data, and the instantaneous leakage and the cumulative leakage are obtained. With the cooperation of the electric proportional valve 20 and the gas-liquid booster 17, the system pressure can be continuously compensated to maintain the system pressure stable, and overcharging can be prevented to a certain extent. After the test is completed, the gas-controlled ball valve B25 is closed and the gas-controlled ball valve C27 is opened. After the pressure in the test piece cavity is released, the water pump 28 is turned on to pump the pipe. The waste water in the pipeline and the cavity is pumped back to the waste water tank 29; when the test pressure is in the range of 5-25Mpa, under the control of the electrical module 31, the gas-liquid booster pump 4 reciprocates to send the water pump 28 in the water tank 1 into the system, and the air in the system pipeline and the test valve cavity is exhausted, and then all the air-controlled ball valves 2 are closed, and the gas-liquid booster pump 4 starts to continue working, and the pressure of the accumulator 5 is increased to about 25Mpa, and then the air-controlled ball valve B25 is opened, and the electrical proportional valve 20 will adjust the gas source pressure of the air-controlled pressure reducing valve 18 according to the pressure parameters collected by the pressure transmitter. The pressure reducing valve is adjusted in real time to reduce the pressure to the test pressure value and maintain stability. During this process, the gas-liquid booster 17 does not work. When the pressure reaches the test pressure, the computer 30 starts to record the parameters of the flow meter to obtain the instantaneous leakage and the cumulative leakage. With the cooperation of the electrical proportional valve 20 and the air-controlled pressure reducing valve 18, the system pressure can be continuously compensated to maintain the system pressure stable. After the test is completed, the air-controlled ball valve B25 is closed and the air-controlled ball valve C27 is opened. After the pressure in the test piece cavity is released, the water pump 28 is turned on to pump the waste water in the pipeline and the cavity back to the waste water tank 29.

[0071] In the pressure drop measurement mode: when the test pressure is in the range of 0-5Mpa, under the control of the electrical module 31, the gas-liquid booster pump 4 reciprocates to send the water pump 28 in the water tank 1 into the system, and the air-controlled ball valve 2 is opened until the air in the system pipeline and the test valve cavity is exhausted, then the air-controlled ball valve A13 is closed, the air-controlled ball valve B25 is opened, the air-controlled pressure reducing valve 18 is closed, and the air-controlled ball valve C27 is closed. At this time, the gas-liquid booster 17 starts to work, and the electrical proportional valve 20 will adjust the input gas source pressure of the gas-liquid booster 17 according to the pressure parameters collected by the pressure transmitter so that the gas-liquid booster 17 boosts the pipeline. After the pressure rises to the test pressure, the air-controlled ball valve B25 is closed, and the computer 30 starts to record the parameters of the starting pressure and the ending pressure, and obtains the pressure drop value. When the test is completed, the air-controlled ball valve C27 is opened. After the pressure in the test piece cavity is exhausted, the water pump 28 is opened to pump the waste water in the pipeline and the cavity back to the wastewater tank 29; the test pressure When the pressure is in the range of 5-25Mpa, under the control of the electrical module 31, the gas-liquid booster pump 4 reciprocates to send the water pump 28 in the water tank 1 into the system, open multiple gas-controlled ball valves 2, exhaust the air in the system pipeline and the test valve cavity, close all the gas-controlled ball valves 2, and the gas-liquid booster pump 4 starts to work again, raising the pressure of the accumulator 5 to about 25Mpa, and then opens the gas-controlled ball valve B25. The electrical proportional valve 20 will adjust the gas source pressure of the gas-controlled pressure reducing valve 18 according to the pressure parameters collected by the pressure transmitter, thereby adjusting the pressure reducing valve to reduce the pressure to the test pressure value. During this process, the gas-liquid booster 17 does not work. When the pressure reaches the test pressure, the gas-controlled ball valve B25 is closed, and the computer 30 begins to record the parameters of the starting pressure and the ending pressure, and obtains the pressure drop value. When the test is completed, the gas-controlled ball valve C27 is opened. After the pressure in the test piece cavity is exhausted, the water pump 28 is opened to pump the waste water in the pipeline and cavity back to the wastewater tank 29.

[0072] In summary, the present invention can directly push the equipment to the site through four separately movable modules, and can directly carry out relevant tests of the valve through quick connection, thereby improving the adaptability to complex environments and the convenience of use; by separating the fluid system and the driving fluid system, the test temperature control and the diversification of the test medium are facilitated; the electric proportional valve 20 is used to control the pressurization of the gas-liquid booster 17 in the low-pressure interval, and the corresponding electrical signal is given to output the corresponding pressure in proportion. The electric proportional valve 20 controls the boost speed to ensure that the set pressure is reached within one stroke, and there will be no overcharging; the high-pressure interval part adopts the air-controlled pressure reducing valve 18. According to the set pressure, the air-controlled pressure reducing valve 18 adjusts the opening in real time under the control of the electric proportional valve 20 to form servo control, ensure the stability of the pressure, eliminate the pulse of the gas-liquid booster pump 4 through the accumulator 5, and play a role in energy storage. Provide stable pressure to the air-controlled pressure reducing valve 18; controlled by a computer 30, the electrical appliance has a high degree of automation, can freely set various parameters, monitor the changes of the pressure-time curve and the leakage-time curve in real time, has storage and memory functions, can store experimental data, and can automatically output a test report after the test is completed.

[0073] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A portable dual-mode valve detection device, comprising a control system module (100), and a measurement module (200), a boost module (300), and a wastewater management module (400) communicatively connected to the control system module (100), characterized in that: The measurement module (200), the pressure-boosting module (300), and the wastewater management module (400) form a loop for detection, and the loop is used to detect pressure drop and leakage in two environments, a low pressure range and a high pressure range; The boost module (300) comprises: A water tank (1), the water tank (1) having an outlet, the wastewater management module (400) being used to manage and recycle wastewater flowing from the water tank (1) into the system; a ball valve (2), one end of the ball valve (2) being connected to the outlet of the water tank (1) and being used to control the output of the water tank (1); A filter (3), the other end of the ball valve (2) being in communication with the filter (3); A gas-liquid booster pump (4) is connected to an end of the filter (3) away from the ball valve (2) and is used to provide a pressure source for testing in a high pressure range; The accumulator (5) is connected to an end of the gas-liquid booster pump (4) away from the filter (3) and is used to maintain the stability of the pipeline system and reduce pulses and vibrations.

2. A portable dual-mode valve detection device according to claim 1, characterized in that: The measuring module (200) comprises: An air-controlled ball valve A (13) is connected to an end of the accumulator (5) away from the gas-liquid booster pump (4); The solenoid valve (14) is connected to the control system module (100) via a cable A (10), and the solenoid valve (14) is communicatively connected to the air-controlled ball valve A (13) and the air-liquid booster pump (4); An air source pressure regulating valve (15), connected to the solenoid valve (14), and used for controlling the pressure of the input air source; A second coupling (16), mainly used to control the driving pressure of the gas-liquid booster pump (4); The gas-liquid booster (17) is connected to the gas-controlled ball valve A (13). The gas-controlled ball valve A (13) is used to open the valve to inject water and exhaust air into the pipeline and the gas-liquid booster (17) during the low-pressure interval test. The gas-liquid booster (17) provides system pressure when testing the low-pressure interval. The gas-liquid booster (17) is communicatively connected to the solenoid valve (14); An air-controlled pressure-reducing valve (18) connected to the outlet end of the accumulator (5), and the air-controlled pressure-reducing valve (18) is communicatively connected to the solenoid valve (14); an electric proportional valve (20) connected to the gas-controlled pressure reducing valve (18), the electric proportional valve (20) controlling the gas-controlled pressure reducing valve (18) to adjust the system pressure in real time, and the electric proportional valve (20) being connected to the outlet end of the gas source pressure regulating valve (15), and connected to the control system module (100) via the cable A (10) and the cable B (11); A pressure transmitter A (19), disposed between the gas source pressure regulating valve (15) and the electric proportional valve (20), for collecting and displaying intake pressure parameters; A mass flow meter (21), connected to the control system module (100) via the cable A (10) and the cable B (11), and used for collecting and displaying leakage parameters; A pressure transmitter B (22), connected to the mass flow meter (21), for collecting and displaying actual pressure parameters during the test; A test outlet (23), connected to the mass flow meter (21), and connected to a test piece during a test; An air source inlet (24) connected to the second connecting piece (16); The pneumatically controlled ball valve B (25) is installed between the mass flow meter (21) and the pneumatically controlled pressure reducing valve (18), the pressure transmitter B (22) is located between the pneumatically controlled ball valve B (25) and the mass flow meter (21), and the pneumatically controlled ball valve B (25) is communicatively connected to the solenoid valve (14); a pressure transmitter C (26), located between the accumulator (5) and the air-controlled pressure reducing valve (18), and used for collecting and displaying the accumulator pressure value; The air-controlled ball valve C (27) is connected to the test outlet (23) and is used to implement the exhaust, water injection and pressure relief processes. The air-controlled ball valve C (27) is communicatively connected to the solenoid valve (14).

3. A portable dual-mode valve detection device according to claim 2, characterized in that: The control system module (100) is connected to the measurement module (200) via the cable A (10) and the cable B (11), and is mainly used to provide power and collect signals. The control system module (100) comprises: Computer (30); The electrical module (31) is communicatively connected to the computer (30) to control the electrical module (31) and collect relevant data.

4. A portable dual-mode valve detection device according to claim 3, characterized in that: The wastewater management module (400) comprises: A water pump (28), wherein the inlet end of the water pump (28) is connected to the water source outlet end of the air-controlled ball valve C (27) via a water return pipe (7); A waste water tank (29), the inlet end of which is connected to the outlet end of the water pump (28), and is mainly used for treating waste water after the test.

5. A portable dual-mode valve detection device according to claim 4, characterized in that: Also includes: An armrest, each module is designed with the armrest, and the electrical module (31) and the measuring module (200) can be combined and stacked; Casters (32), the casters (32) being respectively mounted on the bottom of each module box, so that the equipment has the function of being easily movable.

6. A method of use, characterized in that: A portable dual-mode valve detection device according to claim 5, comprising the following steps: S1. Transport multiple modules to the area to be tested and connect the components; S2, turning on the power supply, starting the control system module (100) and supplying power to relevant components; S3, setting test parameters in the control software of the computer (30), and connecting the test piece to the test outlet (23); S4, measuring the leakage amount, and recording the leakage amount through the computer (30); S5, measuring the pressure drop, and recording the pressure drop by the computer (30); S6. Recycle the wastewater, close the corresponding nodes through the control system module (100), and generate a pressure-time curve graph, a leakage-time curve graph, and a test report.

7. A method of use according to claim 6, characterized in that: The S4 comprises the following steps: S41, when the leakage test is performed on the low pressure interval, the gas-liquid booster (17) operates to exhaust the air in the system, the air-controlled ball valve B (25) is opened, the system is pressurized by controlling the gas-liquid booster (17), and the computer (30) records the leakage; S42, when the leakage test is performed on the high pressure interval, the gas-liquid booster pump (4) works to exhaust the air in the system, increase the pressure of the accumulator (5), open the gas-controlled ball valve B (25), adjust the pressure of the pressure reducing valve, and the computer (30) records the leakage.

8. A method of use according to claim 6, characterized in that: The S5 comprises the following steps: S51, when measuring the pressure drop in the low pressure interval, the gas-liquid booster (17) operates to exhaust the air in the system, the gas-liquid booster (17) operates to increase the pressure, the gas-controlled ball valve B (25) is closed, and the computer (30) records the pressure drop; S52. When measuring the pressure drop in the high pressure interval, the gas-liquid booster pump (4) operates to exhaust the air in the system, increase the pressure of the accumulator (5), open the gas-controlled ball valve B (25), adjust the pressure of the pressure reducing valve, close the gas-controlled ball valve B (25), and the computer (30) records the pressure drop.

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