A high-efficiency voltage regulating box test bench and test method thereof

Abstract

The present invention discloses a high-efficiency pressure regulating box test bench and a test method thereof, comprising an air inlet pipe, a gas filter, a gas pressure regulator, a pressure transmitter and an air outlet pipe, wherein the air inlet pipe is correspondingly provided with a gas turbine flowmeter, a gas pressure gauge and a high-pressure protection gas nozzle, and is connected with the air inlet of the gas filter, and the air outlet of the gas filter is connected with a three-way switching pipeline. The system adopts cylinder compression, has high speed and high reliability; only simple training is required, and ordinary workers can be selected; when regulating the pressure, it is only necessary to open and close the corresponding manual valves one by one according to the operating instructions, and make records; all data only need to be compared with the corresponding values ​​once, and no complex calculation is required to draw the test conclusion; even if the operation is illegal, the compression tooling is directly opened without deflation, because there is an operation protection mechanism, the workbench will not be directly opened, but will be automatically opened after deflation, and no accidents will occur.

Description

Technical Field

[0001] The invention relates to the technical field of gas pressure regulation, and in particular to a high-efficiency pressure regulating box test bench and a test method thereof. Background Art

[0002] For the existing ultra-high pressure pressure regulating test system, when fixing the product during debugging, some manufacturers with low efficiency requirements directly use bolts to tighten and fix it. This kind of fixation takes a long time and has low efficiency. When operating the equipment, skilled workers who have been engaged in this industry for a long time are also needed to receive professional knowledge training on pressure regulating valves and pressure regulation steps. During the debugging process, workers are required to record and calculate item by item according to the national standard GB27790-2011, Section 8.1.3 factory inspection requirements. If the operation is illegal and the clamping tool is opened directly without releasing the air, injuries may occur. Summary of the invention

[0003] The object of the present invention is to provide a high-efficiency voltage regulating box test bench and a test method thereof to solve the problems raised in the above-mentioned background technology.

[0004] The purpose of the present invention is achieved through the following technical solutions: an efficient pressure regulating box test bench, which consists of a workbench and a high-voltage test system installed in the workbench, the top surface of the workbench is provided with a desktop steel plate, the desktop steel plate is covered with a rubber plate of corresponding size, and the periphery of the workbench is fixedly wrapped with a stainless steel outer cover plate; the high-voltage test system includes an air inlet pipe, a gas filter, a gas pressure regulator, a pressure transmitter and an air outlet pipe, the air inlet pipe is correspondingly provided with a gas turbine flowmeter, a gas pressure gauge and a high-pressure protective gas nozzle, and is connected to the gas filter. The air inlet is connected, the air outlet of the gas filter is connected to the three-way switching pipe, the two output pipes of the three-way switching pipe are respectively a protection pipe and a pressure regulating pipe, the protection pipe is provided with a first ball valve, the pressure regulating pipe is provided with a second ball valve, a third ball valve and a fourth ball valve in sequence, a gas pressure regulator is provided on the connecting pipe between the second ball valve and the third ball valve, an exhaust pipe is connected to the connecting pipe between the third ball valve and the fourth ball valve, a manual valve is provided on the exhaust pipe, the output port of the fourth ball valve is connected to the outlet pipe, and the outlet pipe is provided with a pressure transmitter.

[0005] In the present invention, the interfaces of the air inlet pipe and the air outlet pipe are both provided with connecting flanges, and tooling claws for clamping and fixing are respectively provided under the two connecting flanges, and the tooling claws are connected to the piston rod port of the cylinder through a hexagonal nut.

[0006] In the present invention, the first ball valve, the second ball valve, the third ball valve and the fourth ball valve are all solenoid valves.

[0007] In the present invention, the cylinder is electrically connected to the PLC controller, and the PLC controller is also connected to the first ball valve, the second ball valve, the third ball valve and the fourth ball valve respectively.

[0008] In the present invention, the pressure transmitter, the gas pressure meter and the gas turbine flow meter are electrically connected to the PLC controller respectively, and the PLC controller is connected to the computer.

[0009] In the present invention, a plurality of control valves are arranged on the front of the workbench, and the control valves correspond one by one to the first ball valve, the second ball valve, the third ball valve, the fourth ball valve, the manual valve and the valves of the two cylinders respectively.

[0010] Compared with the prior art, the beneficial effect of the present invention is that the invention provides an efficient pressure regulating box test bench and a test method thereof, which adopts cylinder compression, has fast speed and high reliability; only simple training is required, and ordinary workers can be selected. When adjusting the pressure, they only need to follow the operating instructions, open and close the corresponding manual valves one by one, and make records. All data only need to be compared with the corresponding values ​​once, and no complicated calculations are required to draw the test conclusion. Even if the operation is illegal and the compression tooling is directly opened without deflation, because there is an operation protection mechanism, the workbench will not be opened directly, but will automatically deflate and then open, and no accidents will occur; at the same time, because the system is designed according to the function switch, all data are quantified, so it can be easily upgraded. All manual valves can be replaced with solenoid valves, and a computer programmable terminal can be added to upgrade it to a fully automatic detection platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an overall effect diagram of a high-efficiency voltage regulating box test bench of the present invention;

[0012] Figure 2 It is a front view of a high-efficiency voltage regulating box test bench of the present invention;

[0013] Figure 3 This is an overall effect diagram of a high-efficiency voltage regulating box test bench without a stainless steel outer cover plate of the present invention;

[0014] Figure 4 This is an overall effect diagram of a high-voltage test system in a high-efficiency voltage regulating box test bench of the present invention;

[0015] Figure 5 It is an overall principle diagram of a high-voltage test system in a high-efficiency voltage regulating box test bench of the present invention;

[0016] In the figure: 1. air inlet pipe, 2. gas turbine flowmeter, 3. gas pressure gauge, 4. high-pressure protection nozzle, 5. gas filter, 6. three-way switching pipe, 7. first ball valve, 8. second ball valve, 9. gas pressure regulator, 10. third ball valve, 11. fourth ball valve, 12. air outlet pipe, 13. exhaust pipe, 14. manual valve, 15. pressure transmitter, 16. tooling claw, 17. hexagonal nut, 18. cylinder, 19. workbench, 20. desktop steel plate, 21. rubber plate, 22. stainless steel outer cover plate, 23. control valve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] like Figure 1-5 As shown, the present invention discloses a high-efficiency pressure regulating box test bench, which is composed of a workbench 19 and a high-voltage test system installed in the workbench 19. The top surface of the workbench 19 is provided with a desktop steel plate 21, and a rubber plate 20 of a corresponding size is laid on the desktop steel plate 21, and the periphery of the workbench 19 is fixedly wrapped with a stainless steel outer cover plate 22; the high-voltage test system includes an air inlet pipe 1, a gas filter 5, a gas pressure regulator 9, a pressure transmitter 15 and an air outlet pipe 12, and is characterized in that: the air inlet pipe 1 is correspondingly provided with a gas turbine flow meter 2, a gas pressure gauge 3 and a high-pressure protection gas nozzle 4, and is connected to the air inlet of the gas filter 5 The gas outlet of the gas filter 5 is connected to the three-way switching pipe 6, and the two output pipes of the three-way switching pipe 6 are respectively a protection pipe and a pressure regulating pipe. The protection pipe is provided with a first ball valve 7, and the pressure regulating pipe is provided with a second ball valve 8, a third ball valve 10 and a fourth ball valve 11 in sequence. A gas pressure regulator 9 is provided on the connecting pipe between the second ball valve 8 and the third ball valve 10, and an exhaust pipe 13 is connected to the connecting pipe between the third ball valve 10 and the fourth ball valve 11. A manual valve 14 is provided on the exhaust pipe 13. The output port of the fourth ball valve 11 is connected to the outlet pipe 12, and a pressure transmitter 15 is provided on the outlet pipe 12.

[0019] In the present invention, the interfaces of the air inlet pipe 1 and the air outlet pipe 12 are both provided with connecting flanges, and the lower parts of the two connecting flanges are both provided with tooling claws 16 for clamping and assembling, and the tooling claws 16 are connected to the piston rod port of the cylinder 18 through the hexagonal nut 17. The first ball valve 7, the second ball valve 8, the third ball valve 10 and the fourth ball valve 11 are all solenoid valves. The cylinder 18 is electrically connected to the PLC controller, and the PLC controller is also respectively connected to the first ball valve 7, the second ball valve 8, the third ball valve 10 and the fourth ball valve 11. The pressure transmitter 15, the gas pressure gauge 3 and the gas turbine flow meter 2 are respectively electrically connected to the PLC controller, and the PLC controller is connected to the computer. A plurality of control valves 23 are provided on the front of the workbench 19, and the control valves 23 correspond to the first ball valve 7, the second ball valve 8, the third ball valve 10, the fourth ball valve 11, the manual valve 14 and the valves of the two cylinders 18 one by one.

[0020] In the present invention, the testing method of the high-efficiency voltage regulating box test bench is as follows:

[0021] Step 1: Connect the two ends of the pipeline to be tested to the flange interface of the pressure regulating box test bench respectively, and use the expansion and contraction of the cylinder 18 provided at the flange interface to make the tooling claws 16 connected and fixed above to connect and fix the pipeline to be tested and the interface of the pressure regulating box test bench accordingly;

[0022] Step 2: Ventilate the pipeline to be tested, and the gas enters along the air inlet pipe 1 and passes through the gas turbine flow meter 2 and the gas pressure gauge 3. The first ball valve 7 and the second ball valve 8 are manually closed by using the control valve 23. At this time, the high-pressure protection gas nozzle 4 plays the role of high-pressure protection deflation to avoid damage to the gas pressure gauge 3 caused by excessive instantaneous pressure. The input gas pressure of the pipeline to be tested can be obtained by using the pressure gauge 3;

[0023] Step 3: Open the second ball valve 8 closed in step 2 to allow the gas to pass through the body filter 5 and be delivered to the gas pressure regulator 9, and use the gas pressure regulator 9 to adjust the gas pressure of the delivered gas. At the same time, open the third ball valve 10, output the gas through the manual valve 14, and record the relevant data of the gas turbine flow meter 2 and the gas pressure meter 3;

[0024] Step 4: Close the manual valve 14 in step 3, and open the fourth ball valve 11, so that the input gas enters the outlet pipe 12. The output pressure data after pressure regulation can be measured and recorded by the pressure transmitter 15 provided on the outlet pipe 12. By comparing the data, relevant test results can be obtained;

[0025] Step 5: After steps 1-3 are completed, the first ball valve 7 can be manually opened to directly discharge the high-pressure gas in the pressure measuring system of the test bench, wherein the gas pressure gauge 3 monitors the internal air pressure in real time. When the air pressure is about to reach the safe pressure, the control valve 23 is used to manually control the opening of the cylinder 18, so that the cylinder 18 is extended and the tooling claw 16 is moved up, thereby separating the test bench from the pipeline to be tested. When the employee directly opens the control valve 23 to manually control the opening of the cylinder 18, the air pressure of the gas pressure gauge 3 is too high. At this time, the controller of the cylinder 18 delays the response, and first automatically opens the first ball valve 7 to directly discharge the high-pressure gas in the pressure measuring system of the test bench, wherein the gas pressure gauge 3 monitors the internal air pressure in real time. When the air pressure is about to reach the safe pressure, the cylinder 18 valve is opened in response to realize the displacement of the claw tooling 16.

[0026] When in use, the switches of the first ball valve 7, the second ball valve 8, the third ball valve 10 and the fourth ball valve 11 are controlled by the PLC controller. The gas turbine flow meter 2 and the gas pressure gauge 3 can clearly know the gas pressure entering the intake pipe 1. After being filtered by the gas filter 5, the gas is sent to the pressure regulator 9 for pressure regulation test and then sent to the outlet pipe 12. The output pressure in the outlet pipe 12 is detected by the pressure transmitter 15, and the detection data is obtained. At the same time, an automatic high-pressure protection gas nozzle 4 is provided on the pipeline, which can effectively avoid damage to the pipeline or equipment due to excessive air pressure. An automatic protection pipeline and a manual exhaust pipe 13 are also provided. Since the automatic protection pipeline is provided with the first ball valve 7, when the tooling claw 16 controlled by the cylinder 18 is released, there is high pressure in the pipeline. The automatic protection pipeline is first automatically deflated to ensure safety.

[0027] The invention discloses an efficient pressure regulating box test bench and a test method thereof, which adopts cylinder compression, has fast speed and high reliability. It only needs simple training and ordinary workers can be selected. When adjusting the pressure, they only need to follow the operating instructions, open and close the corresponding manual valves one by one, and make records. All data only need to be compared with the corresponding values ​​once, and the test conclusion can be drawn without complicated calculations. Even if the operation is illegal and the compression tooling is opened directly without releasing the air, because there is an operation protection mechanism, the workbench will not be opened directly, but will be opened after automatic release of air, and no accidents will occur. At the same time, because the system is designed according to the function switch, all data are quantified, so it can be easily upgraded. All manual valves can be replaced with solenoid valves, and a computer programmable terminal can be added to upgrade it to a fully automatic detection platform.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An efficient pressure regulating box test bench, comprising a workbench (19) and a high-voltage test system installed in the workbench (19), wherein the top surface of the workbench (19) is provided with a desktop steel plate (21), a rubber plate (20) of corresponding size is laid on the desktop steel plate (21), and the periphery of the workbench (19) is fixedly wrapped with a stainless steel outer cover plate (22); the high-voltage test system comprises an air inlet pipe (1), a gas filter (5), a gas pressure regulator (9), a pressure transmitter (15) and an air outlet pipe (12), characterized in that: The air inlet pipe (1) is provided with a gas turbine flow meter (2), a gas pressure gauge (3) and a high-pressure protection gas nozzle (4) respectively, and is connected to the air inlet of the gas filter (5); the air outlet of the gas filter (5) is connected to a three-way switching pipe (6); the two output pipes of the three-way switching pipe (6) are a protection pipe and a pressure regulating pipe respectively; the protection pipe is provided with a first ball valve (7); the pressure regulating pipe is provided with a second ball valve (8), a third ball valve (10) and a fourth ball valve (11) in sequence; the connecting pipe between the second ball valve (8) and the third ball valve (10) is provided with a gas pressure regulator (9); the connecting pipe between the third ball valve (10) and the fourth ball valve (11) is connected to an exhaust pipe (13); the exhaust pipe (13) is provided with a manual valve (14); the output port of the fourth ball valve (11) is connected to an air outlet pipe (12); the air outlet pipe (12) is provided with a pressure transmitter (15); The interfaces of the air inlet pipe (1) and the air outlet pipe (12) are both provided with connecting flanges, and tooling claws (16) for clamping and assembling are respectively provided below the two connecting flanges, and the tooling claws (16) are connected to the piston rod port of the cylinder (18) via a hexagonal nut (17); The first ball valve (7), the second ball valve (8), the third ball valve (10) and the fourth ball valve (11) are all solenoid valves; The cylinder (18) is electrically connected to a PLC controller, and the PLC controller is also respectively connected to a first ball valve (7), a second ball valve (8), a third ball valve (10), and a fourth ball valve (11); The pressure transmitter (15), the gas pressure meter (3) and the gas turbine flow meter (2) are electrically connected to a PLC controller respectively, and the PLC controller is connected to a computer; A plurality of control valves (23) are provided on the front of the workbench (19), and the control valves (23) correspond one by one to the first ball valve (7), the second ball valve (8), the third ball valve (10), the fourth ball valve (11), the manual valve (14) and the valves of the two cylinders (18).

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