CN111693276B - High-efficiency pressure regulating box test method - Google Patents
High-efficiency pressure regulating box test method Download PDFInfo
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- CN111693276B CN111693276B CN202010576654.4A CN202010576654A CN111693276B CN 111693276 B CN111693276 B CN 111693276B CN 202010576654 A CN202010576654 A CN 202010576654A CN 111693276 B CN111693276 B CN 111693276B
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- pressure
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- ball valve
- air
- regulating box
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a high-efficiency pressure regulating box testing method, which comprises an air inlet pipe, an air filter, an air pressure regulator, a pressure transmitter and an air outlet pipe, wherein the air inlet pipe is correspondingly provided with an air turbine flow meter, an air pressure gauge and a high-pressure protection air nozzle and is connected with an air inlet of the air filter; the manual valve pressing device has the advantages that only simple training is needed, common workers can be selected, when pressure is adjusted, only corresponding manual valves need to be opened and closed one by one according to operation instructions and recorded, all data only need to be compared with corresponding numerical values once, complex calculation is not needed, the test conclusion can be obtained, even if illegal operation is carried out, the pressing tool is directly opened without air release, due to the fact that an operation protection mechanism is arranged, the workbench cannot be directly opened, the workbench can be automatically opened after air release, and accidents cannot occur.
Description
Technical Field
The invention relates to the technical field of gas pressure regulation, in particular to a high-efficiency pressure regulating box testing method.
Background
In the existing ultrahigh pressure regulating test system, when a product is fixed by debugging equipment, a part of manufacturers with low efficiency requirements directly adopt bolts to screw and fix, and the fixation needs long time and has low efficiency; when the equipment is operated, skilled workers in the industry need to be engaged for a long time, professional knowledge training about the pressure regulating valve is carried out, and training of the pressure regulating step is carried out; in the debugging process, workers are required to record and calculate item by item according to the national standard GB27790-2011 and the 8.1.3 delivery inspection requirements; if the operation is violated, the pressing tool is directly opened without air discharge, and the accident of hurting people can occur.
Disclosure of Invention
The invention aims to provide a high-efficiency pressure regulating box testing method to solve the problems in the background technology.
The purpose of the invention is realized by the following technical scheme: the test method of the high-efficiency pressure regulating box test bench comprises the following steps:
step 1: connecting two ends of a pipeline to be detected to a flange interface of the pressure regulating box test bench respectively, and correspondingly connecting and fixing the pipeline to be detected and the interface of the pressure regulating box test bench by using a tool clamping claw fixedly connected above the tool clamping claw by utilizing the expansion of an air cylinder arranged at the flange interface;
step 2: ventilating a pipeline to be detected, allowing gas to enter along an air inlet pipe, manually closing a first ball valve and a second ball valve by using a control valve through a gas turbine flowmeter and a gas pressure gauge, and enabling a high-pressure protection air nozzle to play a role in high-pressure protection air leakage so as to prevent a gas pressure gauge from being damaged due to excessive instantaneous pressure;
and step 3: opening the second ball valve closed in the step 2 to enable the gas to pass through the gas filter and be conveyed to a gas pressure regulator, regulating the pressure of the conveyed gas by using the gas pressure regulator, simultaneously opening a third ball valve, outputting the gas through a manual valve, and recording related data of a gas turbine flowmeter and a gas pressure meter;
and 4, step 4: closing the manual valve in the step 3, opening the fourth ball valve to enable the input gas to enter the gas outlet pipe, measuring and recording output pressure data after pressure regulation through a pressure transmitter arranged on the gas outlet pipe, and obtaining a related test result through data comparison;
and 5: after the steps 1-4 are completed, the first ball valve can be manually opened to directly discharge high-pressure gas in a pressure measuring system of the test bench, wherein the gas pressure gauge monitors the internal gas pressure in real time, when the gas pressure is reduced to safe gas pressure, the control valve is used for manually controlling the opening of the cylinder to enable the cylinder to stretch out and enable the clamping jaws of the tool to move upwards, so that the test bench is separated from a pipeline to be tested, the control valve is used for manually controlling the opening of the cylinder, the gas pressure of the gas pressure gauge is too high, at the moment, the controller of the cylinder delays response, the first ball valve is automatically opened firstly, the high-pressure gas in the pressure measuring system of the test bench is directly discharged, the gas pressure gauge monitors the internal gas pressure in real time, and when the gas pressure is reduced to safe gas pressure, the response is opened to open the cylinder valve, so that the clamping jaws of the tool are moved.
In the invention, connecting flanges are arranged at the interface of the air inlet pipe and the air outlet pipe, a tool clamping jaw for clamping is correspondingly arranged below the two connecting flanges, and the tool clamping jaw is connected with the end opening of the piston rod of the air cylinder through a hexagon nut.
In the invention, the first ball valve, the second ball valve, the third ball valve and the fourth ball valve are all electromagnetic valves.
According to the invention, the air cylinder is electrically connected with the PLC, and the PLC is also respectively connected with the first ball valve, the second ball valve, the third ball valve and the fourth ball valve.
In the invention, the pressure transmitter, the gas pressure gauge and the gas turbine flow meter are respectively and electrically connected with a PLC (programmable logic controller), and the PLC is connected with a computer.
In the invention, a plurality of control valves are arranged on the front surface of the working rack, and the control valves are respectively in one-to-one correspondence with 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.
Compared with the prior art, the testing method of the high-efficiency pressure regulating box has the advantages that the testing method of the high-efficiency pressure regulating box adopts the air cylinder for compaction, so that the speed is high, and the reliability is high; the method has the advantages that only simple training is needed, common workers can be selected, when pressure is adjusted, only corresponding manual valves are required to be opened and closed one by one according to operation instructions and recorded, all data are only required to be compared with corresponding numerical values once, complex calculation is not required, a test conclusion can be obtained, even if illegal operation is carried out, the pressing tool is directly opened without air release, due to an operation protection mechanism, a workbench cannot be directly opened, and the workbench can be automatically opened after air release, so that accidents cannot occur; meanwhile, the system is designed according to the function switch, all data are quantized, so that the system can be conveniently upgraded, all manual valves are changed into electromagnetic valves, and a computer program control terminal is added, so that the system can be upgraded into a full-automatic detection platform.
Drawings
FIG. 1 is an overall effect diagram of a test bench for an efficient pressure regulating box according to the present invention;
FIG. 2 is a front view of a test stand for an efficient surge tank of the present invention;
FIG. 3 is an overall effect diagram of a stainless steel-free outer cover plate of the high-efficiency pressure regulating box test bench of the invention;
FIG. 4 is a diagram of the overall effect of the high voltage testing system in the testing platform of the high efficiency pressure regulating box of the present invention;
FIG. 5 is a schematic diagram of the high voltage test system in the test bed of the high efficiency surge tank of the present invention;
in the figure: 1. the gas inlet pipe, 2, the gas turbine flowmeter, 3, the gas pressure gauge, 4, the high pressure protection air cock, 5, the gas filter, 6, the tee bend switching pipeline, 7, first ball valve, 8, the second ball valve, 9, the gas pressure regulator, 10, the third ball valve, 11, the fourth ball valve, 12, the outlet duct, 13, the blast pipe, 14, the manual valve, 15, pressure transmitter, 16, the frock jack catch, 17, hexagon nut, 18, the cylinder, 19, the workstation frame, 20, the desktop steel sheet, 21, the rubber slab, 22, the stainless steel housing plate, 23, control flap.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1-5, the invention discloses a high-efficiency pressure regulating box test bench, which consists of a work bench 19 and a high-pressure test system arranged in the work bench 19, wherein a table top steel plate 21 is arranged on the top surface of the work bench 19, a rubber plate 20 with a corresponding size is laid on the table top steel plate 21, and the periphery of the work bench 19 is fixedly wrapped by a steel outer cover plate 22; high pressure test system includes intake pipe 1, gas filter 5, gas pressure regulator 9, pressure transmitter 15 and outlet duct 12, its characterized in that: intake pipe 1 is last to correspond and to be equipped with gas turbine flowmeter 2, gas pressure gauge 3 and high-pressure protection air cock 4 to be connected with gas filter 5's air inlet, gas filter 5's gas outlet and tee bend switching pipeline 6, two output pipeline of tee bend switching pipeline 6 are protection pipeline and pressure regulating pipeline respectively, be equipped with first ball valve 7 on the protection pipeline, be equipped with second ball valve 8, third ball valve 10 and fourth ball valve 11 on the pressure regulating pipeline in proper order, be equipped with gas pressure regulator 9 on the connecting tube between second ball valve 8 and the third ball valve 10, connect on the connecting tube between third ball valve 10 and the fourth ball valve 11 and be equipped with blast pipe 13, be equipped with manual valve 14 on blast pipe 13, outlet duct 12 is connected to the delivery outlet of fourth ball valve 11, be equipped with pressure transmitter 15 on outlet duct 12.
In the invention, connecting flanges are arranged at the interface of the air inlet pipe 1 and the air outlet pipe 12, a tool clamping jaw 16 for clamping is correspondingly arranged below the two connecting flanges, and the tool clamping jaw 16 is connected with the end of a piston rod of an air cylinder 18 through a hexagon 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 with a PLC controller, and the PLC controller is also respectively connected with 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 flowmeter 2 are respectively electrically connected with a PLC (programmable logic controller) which is connected with a computer. The front surface of the working platform 19 is provided with a plurality of control valves 23, and the control valves 23 are respectively in one-to-one correspondence with 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.
The test method of the test board for the high-efficiency pressure regulating box comprises the following steps:
step 1: respectively connecting two ends of a pipeline to be detected to a flange interface of the pressure regulating box test bench, and correspondingly connecting and fixing the pipeline to be detected and the interface of the pressure regulating box test bench by using a tool clamping claw 16 which is fixedly connected above the flange interface through the expansion of an air cylinder 18 arranged at the flange interface;
step 2: ventilating a pipeline to be detected, allowing gas to enter along an air inlet pipe 1, manually closing a first ball valve 7 and a second ball valve 8 by using a control valve 23 through a gas turbine flowmeter 2 and a gas pressure gauge 3, and enabling a high-pressure protection gas nozzle 4 to play a role in high-pressure protection gas leakage, so that the gas pressure gauge 3 is prevented from being damaged due to excessive instantaneous pressure, and the input gas pressure of the pipeline to be detected can be obtained by using the pressure gauge 3;
and step 3: opening the second ball valve 8 closed in the step 2 to enable the gas to pass through the gas filter 5, conveying the gas to a gas pressure regulator 9, regulating the pressure of the conveyed gas by using the gas pressure regulator 9, simultaneously opening a third ball valve 10, outputting the gas through a manual valve 14, and recording related data of the gas turbine flow meter 2 and the gas pressure meter 3;
and 4, step 4: closing the manual valve 14 in the step 3, opening the fourth ball valve 11 to enable the input gas to enter the gas outlet pipe 12, measuring and recording the output pressure data after pressure regulation through a pressure transmitter 15 arranged on the gas outlet pipe 12, and obtaining a related test result through data comparison;
and 5: after the steps 1-4 are completed, the first ball valve 7 can be manually opened to directly discharge high-pressure gas in a pressure measuring system of the test bench, wherein the gas pressure gauge 3 monitors the internal gas pressure in real time, when the gas pressure is reduced to safe gas pressure, the control valve 23 is used for manually controlling the opening of the cylinder 18, the cylinder 18 is extended out and the tooling jaw 16 is moved upwards, so that the test bench is separated from a pipeline to be tested, when an employee directly uses the control valve 23 to manually control the opening of the cylinder 18, the gas pressure of the gas pressure gauge 3 is too high, the controller of the cylinder 18 delays response at the moment, the first ball valve 7 is automatically opened firstly, the high-pressure gas in the pressure measuring system of the test bench is directly discharged, wherein the gas pressure gauge 3 monitors the internal gas pressure in real time, and when the gas pressure is reduced to safe gas pressure, the response is used for opening the valve of the cylinder 18, so that the tooling jaw 16 is displaced.
When in use, the PLC controller is used for controlling the opening and closing of the first ball valve 7, the second ball valve 8, the third ball valve 10 and the fourth ball valve 11, the gas turbine flowmeter 2 and the gas pressure gauge 3 are utilized to clearly know the pressure of gas entering the gas inlet pipe 1, the gas is filtered by the gas filter 5 and then sent into the pressure regulator 9 for pressure regulation test treatment, and then sent into the gas outlet pipe 12, the pressure transmitter 15 is utilized to detect the output pressure in the gas pipe 12, and detection data is obtained, meanwhile, the pipeline is provided with the high-pressure protection gas nozzle 4 with automatic protection, so that the pipeline or equipment damage caused by overhigh pressure can be effectively avoided, the automatic protection pipeline and the manual exhaust pipe 13 are also arranged, the first ball valve 7 is arranged on the automatic protection pipeline, when the clamping jaw 16 controlled by the cylinder 18 is loosened, high pressure exists in the pipeline, the automatic protection pipeline is utilized to firstly carry out automatic air release treatment, the safety is ensured.
According to the high-efficiency pressure regulating box testing method, the air cylinder is adopted for compaction, the speed is high, and the reliability is high; the method has the advantages that only simple training is needed, common workers can be selected, when pressure is adjusted, only corresponding manual valves are required to be opened and closed one by one according to operation instructions and recorded, all data are only required to be compared with corresponding numerical values once, complex calculation is not required, a test conclusion can be obtained, even if illegal operation is carried out, the pressing tool is directly opened without air release, due to an operation protection mechanism, a workbench cannot be directly opened, and the workbench can be automatically opened after air release, so that accidents cannot occur; meanwhile, the system is designed according to the function switch, all data are quantized, so that the system can be conveniently upgraded, all manual valves are changed into electromagnetic valves, and a computer program control terminal is added, so that the system can be upgraded into a full-automatic detection platform.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A test method of a test board of a high-efficiency pressure regulating box is characterized by comprising the following steps: including high-pressure test system and workstation (19), high-pressure test system includes intake pipe (1), gas filter (5), gas pressure regulator (9), pressure transmitter (15) and outlet duct (12), correspond in intake pipe (1) and be equipped with gas turbine flowmeter (2), gas pressure gauge (3) and high-pressure protection air cock (4) to be connected with the air inlet of gas filter (5), the gas outlet and the tee bend switching pipeline (6) of gas filter (5) are connected, two output pipeline of tee bend switching pipeline (6) are protection tube and pressure regulating pipeline respectively, be equipped with first ball valve (7) on the protection tube, be equipped with second ball valve (8), third ball valve (10) and fourth ball valve (11) on the pressure regulating pipeline in proper order, be equipped with gas pressure regulator (9) on the connecting tube between second ball valve (8) and third ball valve (10), the testing method of the high-efficiency pressure regulating box testing platform comprises the following steps that an exhaust pipe (13) is connected to a connecting pipeline between the third ball valve (10) and the fourth ball valve (11), a manual valve (14) is arranged on the exhaust pipe (13), an outlet pipe (12) is connected to an output port of the fourth ball valve (11), a pressure transmitter (15) is arranged on the outlet pipe (12), and the testing method of the high-efficiency pressure regulating box testing platform comprises the following steps:
step 1: two ends of a pipeline to be tested are respectively connected to a flange interface of the high-efficiency pressure regulating box test bench, and the pipeline to be tested and the interface of the high-efficiency pressure regulating box test bench are correspondingly connected and fixed by a tool clamping claw (16) which is fixedly connected above the flange interface by utilizing the expansion and contraction of an air cylinder (18) arranged at the flange interface;
step 2: ventilating a pipeline to be tested, allowing gas to enter along a gas inlet pipe (1), manually closing a first ball valve (7) and a second ball valve (8) by using a control valve (23) through a gas turbine flowmeter (2) and a gas pressure gauge (3), and enabling a high-pressure protection gas nozzle (4) to play a role in high-pressure protection gas leakage so as to avoid damage to the gas pressure gauge (3) caused by excessive instantaneous pressure and obtain the input gas pressure of the pipeline to be tested by using the gas pressure gauge (3);
and step 3: opening the second ball valve (8) closed in the step 2 to enable the gas to pass through the gas filter (5), conveying the gas to a gas pressure regulator (9), regulating the pressure of the conveyed gas by using the gas pressure regulator (9), simultaneously opening a third ball valve (10), outputting the gas through a manual valve (14), and recording relevant data of the gas turbine flow meter (2) and the gas pressure meter (3);
and 4, step 4: closing the manual valve (14) in the step (3), opening the fourth ball valve (11) to enable the input gas to enter the gas outlet pipe (12), measuring and recording output pressure data after pressure regulation through a pressure transmitter (15) arranged on the gas outlet pipe (12), and obtaining related test results through data comparison;
and 5: after the steps 1-4 are finished, a first ball valve (7) is manually opened to directly discharge high-pressure gas in a high-pressure testing system of the high-efficiency pressure regulating box testing platform, wherein the gas pressure gauge (3) monitors the internal gas pressure in real time, when the gas pressure is reduced to safe gas pressure, a control valve (23) is used to manually control the opening of a cylinder (18) to extend the cylinder (18) and move a tool clamping jaw (16) upwards so as to separate the high-efficiency pressure regulating box testing platform from a pipeline to be tested, when the control valve (23) is used to manually control the opening of the cylinder (18), the gas pressure of the gas pressure gauge (3) is overhigh, a controller of the cylinder (18) delays response, the first ball valve (7) is automatically opened at first, the high-pressure gas in the high-pressure testing system of the high-efficiency pressure regulating box testing platform is directly discharged, wherein the gas pressure gauge (3) monitors the internal gas pressure in real time, when the air pressure is reduced to be safe air pressure, a valve of the air cylinder (18) is opened in response, and the displacement of the tool clamping jaw (16) is realized.
2. The method for testing the high-efficiency pressure regulating box test bench according to claim 1, wherein the method comprises the following steps: the connecting flange is arranged at the joint of the air inlet pipe (1) and the air outlet pipe (12), a tool clamping jaw (16) used for clamping and clamping is correspondingly arranged below the connecting flange, and the tool clamping jaw (16) is connected with a piston rod port of the air cylinder (18) through a hexagon nut (17).
3. The method for testing the high-efficiency pressure regulating box test bench according to claim 1, wherein the method comprises the following steps: the first ball valve (7), the second ball valve (8), the third ball valve (10) and the fourth ball valve (11) are all electromagnetic valves.
4. The method for testing the high-efficiency pressure regulating box test bench according to claim 1, wherein the method comprises the following steps: the air cylinder (18) is electrically connected with a PLC (programmable logic controller), and the PLC is further respectively connected with the first ball valve (7), the second ball valve (8), the third ball valve (10) and the fourth ball valve (11).
5. The method for testing the high-efficiency pressure regulating box test bench according to claim 1, wherein the method comprises the following steps: the pressure transmitter (15), the gas pressure gauge (3) and the gas turbine flowmeter (2) are respectively electrically connected with a PLC (programmable logic controller), and the PLC is connected with a computer.
6. The method for testing the high-efficiency pressure regulating box test bench according to claim 1, wherein the method comprises the following steps: the front face of the working table frame (19) is provided with a plurality of control valves (23), and the control valves (23) are in one-to-one correspondence with the valves of 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 air cylinder (18).
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