CN110594581A - Pressure test system and device - Google Patents
Pressure test system and device Download PDFInfo
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- CN110594581A CN110594581A CN201910838497.7A CN201910838497A CN110594581A CN 110594581 A CN110594581 A CN 110594581A CN 201910838497 A CN201910838497 A CN 201910838497A CN 110594581 A CN110594581 A CN 110594581A
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- 238000012360 testing method Methods 0.000 title claims abstract description 81
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000012795 verification Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 103
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000005984 hydrogenation reaction Methods 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
Abstract
The invention discloses a pressure testing system and a device, which comprises a pneumatic booster pump, a pressure reducing valve, a high-pressure safety valve, a pressure gauge, a pressure regulating valve, various high-pressure valves and pipe fittings, and realizes the numerical value verification and the tightness detection in the safety range of pressure elements such as the safety valve, the pressure gauge and the like and the pressurization of a pipeline air tightness verification and supplement system; the automatic stepless stable regulation of the test pressure is realized through the pressure regulating valve, and the pressure detection of a high-pressure pipeline system is realized; the detection of various specifications of the pressure element is realized through the replacement of the terminal output adapter, and the multifunctional pressure element has multiple functions; the push-pull of the equipment is facilitated by the design of the right-end handle and the bottom horsewheel, so that inconvenience in field use is avoided; and the stability and the safety of the pressure element during detection are realized by adjusting the rotary support frame according to the size of the overall dimension of the pressure element.
Description
Technical Field
The invention belongs to the technical field of pressure element testing devices, and particularly relates to a pressure testing system and device.
Background
With the progress of times and the development of science and technology, the application occasions of high-pressure and ultrahigh-pressure gas are gradually increased, for example, in the construction of hydrogenation stations which are rapidly developed in various places in recent years, low pressure of less than 20MPa, medium pressure of 20-50MPa and high pressure of 50-100MPa are applied. In the storage and transmission of high-pressure gas, pressure elements such as pressure gauges for displaying the pressure of pipelines and containers, pressure sensors, safety valves for guaranteeing the maximum safe unloading value of pipelines, pressure reducing valves for adjusting the pressure of gas, and the like are gradually widely used, but before the pressure elements are used, the pressure elements need to be calibrated and detected to guarantee the use safety of the high-pressure gas; the existing testing device is provided with a safety valve testing table and a pressure gauge testing table, the traditional testing device is provided with a pulse and a blasting testing table, the common safety valve testing table on the existing market detects the jump pressure of the safety valve, the pressure gauge testing table detects the numerical accuracy (numerical calibration) of the pressure gauge, the performance detection of the pressure gauge testing table is single, and the size of the testing device is large and cannot be flexibly moved.
The existing detection device also has certain defects: 1. only one pressure element can be independently checked, and the detection and the check of various pressure elements with different specifications cannot be simultaneously finished, for example, a safety valve and a pressure gauge cannot be simultaneously detected and calibrated by one pressure testing device; 2. only single performance of the same pressure element can be detected and calibrated, for example, the safety valve can only detect the jump pressure but cannot simultaneously calibrate the tightness or the fatigue, and the economic cost is higher; 3. generally, low-voltage detection is more, high-voltage detection is less, and universality is poorer; 4. the pressure element detection device is large in general equipment, is inconvenient for field mobile detection and calibration, and is inconvenient for field use to a certain extent.
Different connecting modes and sizes of a pressure gauge, a pressure sensor, a safety valve and the like on the hydrogen filling station and the pipeline are different, and different calibration devices are required to be equipped to complete calibration work, so that the workload and the economic cost are increased for users. Therefore, a pressure calibration device which is convenient to move, can meet different pressure elements and different pressure calibration requirements simultaneously, is simple and convenient to operate and has high calibration accuracy is urgently needed.
Disclosure of Invention
The main means of the technical problem solved by the invention is that the test unit of the test device can be simply and effectively connected with different tested pressure elements by adopting a mode of replacing the adapter, so that the test of different pressure elements by the same device is realized; by designing a supporting frame structure with adjustable positions, different tested pressure elements are supported and fixed, and the safety and stability of the testing process are ensured; by designing a buffer tube to be matched with a pressure regulating valve, stepless and gentle pressurization of gas entering a pressure unit is ensured, and the testing precision is improved; the low pressure gas is pressurized by introducing a booster pump to provide a high pressure gas source. The pressure testing device comprises a pneumatic booster pump, a pressure reducing valve, a high-pressure safety valve, a pressure gauge, various high-pressure valves and pipe fittings, and realizes the numerical value verification (safety valve, pressure gauge and the like) and the tightness detection in the safety range of the pressure element; the automatic stepless stable regulation of the test pressure is realized through the pressure regulating valve, and the pressure detection of a high-pressure pipeline system is realized; the detection of various specifications of the pressure element is realized through the replacement of the specification of the terminal output adapter, and the multifunctional pressure element has multiple functions; the push-pull of the equipment is facilitated by the design of a right-end handle and a bottom Fermat wheel, and inconvenience (incapability of moving at any time, need of manual removal and the like) in field use is avoided; and the stability and the safety of the pressure element during detection are realized by adjusting the rotary support frame according to the size of the overall dimension of the pressure element.
The invention adopts the following technical scheme for solving the technical problems, and the pressure testing system and the device are characterized by comprising a box body and a pipeline system arranged in the box body, wherein the box body consists of a frame and an operation panel arranged at the upper part of the frame; the driving source pipeline is connected with a working air inlet of the gas booster pump through a low-pressure pipeline sequentially through a low-pressure ball valve II and a pressure reducing valve, the low-pressure pipeline between the pressure reducing valve and the gas booster pump is connected with a pressure gauge II arranged on an operation panel, an air inlet source is pressurized by the gas booster pump to be high-pressure gas, and the gas booster pump is fixed in the middle of the frame; the working gas outlet of the gas booster pump is sequentially divided into a high-pressure testing pipeline and a high-pressure emptying pipeline through a high-pressure pipeline by a high-pressure joint, a pressure regulating valve and a tee joint, the high-pressure pipeline between the high-pressure joint and the pressure regulating valve is connected with a pressure gauge III arranged on an operation panel, and the pressure regulating valve is arranged on the operation panel; the high-pressure testing pipeline is connected with the testing element through a high-pressure pipeline sequentially through a high-pressure ball valve I and a conversion joint, the high-pressure ball valve I is arranged on the operation panel, and the high-pressure pipeline between the pressure regulating valve and the high-pressure ball valve I is connected with a pressure gauge IV arranged on the operation panel; the high-pressure emptying pipeline is emptied after sequentially passing through a high-pressure ball valve II and a high-pressure needle valve which are arranged on the operation panel through the high-pressure pipeline, and the high-pressure joint is emptied after passing through a high-pressure safety valve through the high-pressure pipeline; the pressure testing system and the device are used for realizing the calibration and the verification of the pressure element; testing the tightness and fatigue of the pressure element; or a high-pressure air source is provided for the air tightness detection of the pipelines in the hydrogen filling station and the vehicle-mounted hydrogen supply system and the pressurization of the vehicle-mounted hydrogen supply system or the pressurization of the pipeline.
Preferably, a tool box is arranged on the framework on one side of the pipeline system, a front panel is arranged on the lower portion of the framework on the front side of the pipeline system, a handle is fixed on the framework on one side of the pipeline system through a butterfly bolt, a horse wheel is arranged at the bottom of the box body, when the test board is not in a working state and needs to be used in other places, the test board is moved through the horse wheel by the handle, and the butterfly bolt is adopted for fixing the handle so as to facilitate fixing in the working state and rotation of 0-180 degrees.
Preferably, the tool box is opened and closed by adopting a hinge and a hasp.
Preferably, the gas source adopts nitrogen or helium-doped nitrogen as a medium as a driving source and a gas inlet source.
Preferably, the high-pressure pipeline is provided with a pipe clamp for fixing and ensuring the safety of the high-pressure pipeline, the gas booster pump generates high-pressure gas for pressure correction and inspection according to different pressure regulating and pressure regulating valves of the testing element, the high-pressure gas passes through a buffer, the gas flow is small-large-small, the buffer has the capacity of buffer storage, the stepless and stable regulation of the pressure is realized, and the stability and the precision of the pressure output are ensured.
Preferably, the adapter is connected with the test unit through NPT pipe threads at one end, and connected with the test element through the other end in a connection mode matched with the test pressure element, so that a multifunctional function is achieved.
Preferably, a low-pressure pipeline between the low-pressure ball valve I and the gas booster pump is a metal or nonmetal pipe, and a low-pressure pipeline between the pressure reducing valve and the gas booster pump is a 316 stainless steel pipe.
Preferably, the pressure reducing valve is fixed on a frame at one side of the gas booster pump through a pressure reducing valve base, and the safety valve is fixed on a frame at the other side of the gas booster pump through a fixing clamp.
Preferably, a frame on one side of the gas booster pump is provided with a rotary support frame for fixing the test element, the upper, lower, left and right positions of the rotary support frame can be adjusted and rotated by 0-90 degrees according to the specification and size of the test element, and the rotary support frame is fixed and tightened by adjusting the quincunx bolts.
Preferably, the pipeline system of the air inlet source, the driving source, the gas booster pump and the high-pressure pipeline realizes the calibration and the verification of the pressure element and the test of various performances such as the sealing property, the fatigue property and the like of the pressure element.
Preferably, the pressure testing system and the device have the following specific operation steps: the conversion joint is connected to a nitrogen joint of a pipeline of a hydrogenation station, the caliber of the conversion joint is changed according to the caliber of the pipeline joint, a rotary support frame is placed below a frame slideway, the angle is 0 degree, and the rotary support frame is fixed in the frame without being fixed; opening an air inlet source low-pressure ball valve I and a driving source low-pressure ball valve II of an operation panel, pressurizing an air inlet source of a gas booster pump by taking nitrogen as a medium through an air source port of a test system and a filter, observing the numerical value of a pressure gauge I to be pressurized to 10-15MPa, observing the numerical value of the pressure gauge II to be depressurized to 0.6-0.8MPa through a pressure reducing valve, generating high-pressure gas by the gas booster pump under the action of the driving source and the air inlet source gas, switching the high-pressure gas to a 9/16-inch stainless steel pipe through a 1/4-inch stainless steel pipe through a high-pressure adapter, allowing the high-pressure gas to enter an air inlet of a high-pressure safety valve through a 1/4-inch stainless steel pipe and a tee joint, wherein the threshold value of the high-, the high-pressure needle valve and the high-pressure ball valve II are in normally closed state in a gas working state, the high-pressure ball valve I is pressurized to 70MPa, the high-pressure ball valve I is opened after the pressure value reaches, high-pressure gas enters the pipeline of the hydrogenation station, the pressure of the gas enters the pipeline of the hydrogenation station for 30min, the weld joint and the connecting part are checked, if leakage is not detected, the pressure of the pressure regulating valve is regulated to 35MPa, the gas enters the pipeline of the hydrogenation station, the pressure of the gas enters the pipeline of the hydrogenation station for 30min, the weld joint and the connecting part are checked, and if leakage is not detected.
Compared with the prior art, the invention has the following beneficial effects: 1. the detection and calibration of pressure elements with various specifications are realized by replacing the terminal output adapter, for example, one pressure test bench can detect and calibrate a safety valve, a pressure gauge, a pressure reducer and the like; 2. the device is convenient to move and fix on site, and the cost is saved; 3. the device can be used for detecting and calibrating various performances of the pressure element, such as the take-off pressure, the recoil pressure and the tightness of a safety valve, and a pressure gauge calibrates a value and detects the tightness; 4. the safety performance of the pressure element can be tested by utilizing high-pressure detection and calibration.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the case of the present invention;
FIG. 3 is a schematic view of the structure of the rotary support platform, tool box and handle in the box body of the present invention;
FIG. 4 is a schematic diagram of the piping system of the present invention;
fig. 5 is a piping flow diagram of the piping system of the present invention.
In the figure: 1-box body, 1-1-horse wheel, 1-2-rotary support frame, 1-3-frame, 1-4-operation panel, 1-5-front panel, 1-6-adjusting plum bolt, 1-7-handle and 1-8-tool box;
2-pipeline system, 2-1-adapter, 2-2-high-pressure connector, 2-3-high-pressure pipeline, 2-4-pressure gauge, 2-5-high-pressure ball valve I, 2-6-pressure regulating valve, 2-7-low-pressure ball valve I, 2-8-pressure reducing valve, 2-9-pressure reducing valve base, 2-10-high-pressure ball valve II, 2-11-pipe clamp, 2-12-gas booster pump, 2-13-tee joint, 2-14-high-pressure needle valve, 2-15-filter, 2-16-high-pressure safety valve, 2-17-low-pressure ball valve II, 2-18-pressure gauge II, 2-19-pressure gauge III, and 2-20-pressure gauge IV.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is further described in detail with reference to the accompanying drawings in conjunction with the specific embodiments.
A pressure test system and device, including the container body 1 and pipeline system 2 set in container body 1, the container body 1 is formed by frame 1-3 and operation panel 1-4 set in upper portion of frame 1-3, the air supply links with filter 2-15 through the pipeline in the pipeline system 2, the air supply is divided into driving source pipeline and air inlet source pipeline through the tee bend after filtering through the filter 2-15, the driving source pipeline links with air inlet of gas booster pump 2-12 through the low-pressure pipeline through the low-pressure ball valve I2-7, the gas booster pump 2-12 drives the gas outlet to evacuate on the spot, the low-pressure pipeline between filter 2-15 and low-pressure ball valve I2-7 couples to pressure gauge I2-4 set in operation panel 1-4; an air inlet source pipeline is connected with a working air inlet of the gas booster pump 2-12 through a low-pressure pipeline sequentially through a low-pressure ball valve II 2-17 and a pressure reducing valve 2-8, the low-pressure pipeline between the pressure reducing valve 2-8 and the gas booster pump 2-12 is connected with a pressure gauge II 2-18 arranged on an operation panel 1-4, an air inlet source is pressurized by the gas booster pump 2-12 to be high-pressure gas, and the gas booster pump 2-12 is fixed in the middle of the frame 1-3; the working air outlet of the gas booster pump 2-12 is divided into a high-pressure testing pipeline and a high-pressure emptying pipeline through a high-pressure pipeline 2-3, a high-pressure connector 2-2, a pressure regulating valve 2-6 and a tee joint 2-13 in sequence, the high-pressure pipeline between the high-pressure connector 2-2 and the pressure regulating valve 2-6 is connected with a pressure gauge III 2-19 arranged on an operation panel 1-4, and the pressure regulating valve 2-6 is arranged on the operation panel 1-4; the high-pressure test pipeline is connected with the test element through a high-pressure pipeline sequentially through a high-pressure ball valve I2-5 and an adapter 2-1, the high-pressure ball valve I2-5 is arranged on an operation panel 1-4, and the high-pressure pipeline between the pressure regulating valve 2-6 and the high-pressure ball valve I2-5 is connected with a pressure gauge IV 2-20 arranged on the operation panel 1-4; the high-pressure emptying pipeline is emptied through a high-pressure pipeline after sequentially passing through a high-pressure ball valve II 2-10 and a high-pressure needle valve 2-14 which are arranged on an operation panel 1-4, and the high-pressure joint 2-2 is emptied through a high-pressure pipeline after passing through a high-pressure safety valve 2-16; the pressure testing system and the device are used for realizing the calibration and the verification of the pressure element; testing the tightness and fatigue of the pressure element; or a high-pressure air source is provided for the air tightness detection of the pipelines in the hydrogen filling station and the vehicle-mounted hydrogen supply system and the pressurization of the vehicle-mounted hydrogen supply system or the pressurization of the pipeline.
The lower frame 1-3 of the pipeline system 2 is provided with a tool box 1-8, the opening and closing of the tool box 1-8 are realized by adopting a hinge and a hasp, and various conversion joints, small parts or other auxiliary tools of the tool box 1-8 are arranged on the lower frame; a front panel 1-5 is arranged on a frame 1-3 at the front side of the pipeline system 2, and the front panel 1-5 can play a role of a protective baffle plate to prevent an operator from being injured by popping up a part in a test; a handle 1-7 is fixed on a frame 1-3 on one side of the pipeline system 2 through a butterfly bolt, a Fuma wheel 1-1 is arranged at the bottom of the box body 1, when the test board is not in a working state and needs to be moved to other places for use, the handle 1-7 can be moved through the Fuma wheel 1-1, and the handle 1-7 is fixed through the butterfly bolt so as to be convenient for fixing in the working state and rotating by 0-180 degrees.
The gas source adopts nitrogen or helium-doped nitrogen as a driving source and an air inlet source; the 2-3 high-pressure pipelines are provided with pipe clamps 2-11 at a distance of 300mm for ensuring the safety of the 2-3 high-pressure pipelines, and the gas booster pump 2-12 generates high-pressure gas for adjusting the pressure regulating valve 2-6 according to different pressures of the test element to perform pressure correction and inspection, so that the automatic stepless stable regulation of the pressure is realized; the adapter 2-1 is connected by NPT pipe threads, and is configured with a corresponding adapter according to the interface specification, so that the multifunctional function of one machine is realized; the low-pressure pipeline between the low-pressure ball valve I2-7 and the gas booster pump 2-12 adopts a PU hose, and the low-pressure pipeline between the pressure reducing valve 2-8 and the gas booster pump 2-12 adopts a 316 stainless steel pipe.
The pressure reducing valve 2-8 is fixed on the frame 1-3 at one side of the gas booster pump 2-12 through the pressure reducing valve base 2-9, the pressure reducing valve base 2-9 adopts a bending form, and the acute angle part adopts fillet cutting, so that the advantages of attractive strength and shape are met; the safety valve 2-16 is fixed to the frame 1-3 at the other side of the gas booster pump 2-12 by a fixing clip.
A frame 1-3 on one side of a gas booster pump 2-12 is provided with a rotary support frame 1-2 for fixing a test element, the upper and lower positions of the rotary support frame 1-2 are adjusted and rotated by 0-90 degrees according to the specification and the size of the test element, the rotary support frame 1-2 is fixed and loosened by adjusting a plum bolt 1-6, the frame structure in a box body 1 is butted by adopting pipe fittings, the whole material is stainless steel, the appearance is higher than the paint spraying effect, and the environmental protection requirement is met.
In the embodiment, a safety valve is tested as an example, and because the sizes of various types of calibers and overall dimensions of the safety valve are different, a corresponding adapter is selected according to the diameter of the safety valve to be installed in a test bench, and then the safety valve is installed on the adapter; the safety valves have different sizes due to different models, the installed safety valves need to be supported for testing, so as to ensure the safety performance in the test and easily cause personnel injury when the test is carried out, a rotary support frame is added to support the safety valve under the condition, the upper part and the lower part and the left part and the right part of the rotary support frame can be adjusted according to the size of the appearance of the safety valve and can rotate by 0-90 degrees, the rotary support frame is fixed and loosened in the frame up and down by adjusting the plum bolt, the quincuncial head is convenient for manual operation to screw and fix, the test bench is not allowed to move when the safety valve is tested, the rotary teeth in the horseback wheels can be adjusted to be fixedly contacted with the ground, when the test board is not in a working state and needs to be used in other places, the horseback wheels can be adjusted to move by using handles, and the handles are fixed by disc-shaped bolts so as to be convenient to fix in the working state and rotate by 0-180 degrees; the frame is convenient for mounting the gas booster pump; the operation panel fixes the valve and the pressure gauge; the front panel can play a role in protection; the tool box is convenient for field use and can be used for placing a wrench or other auxiliary parts.
After the safety valve is fixed on the frame, nitrogen, helium or helium-doped nitrogen is used as a driving and pressurizing gas source, high-pressure gas is generated by pressurizing through the gas booster pump, the high-pressure gas is transmitted to the safety valve on the adapter after being regulated by the pressure regulating valve, the jump pressure of the safety valve can be checked or set, and the tightness of the safety valve can be detected.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, the invention further resides in various changes and modifications which fall within the scope of the invention as claimed.
Claims (8)
1. A pressure test system and a device are characterized by comprising a box body and a pipeline system arranged in the box body, wherein the box body is composed of a frame and an operation panel arranged at the upper part of the frame, a gas source in the pipeline system is connected with a filter through a pipeline, the gas source is divided into a driving source pipeline and an air inlet source pipeline through a tee joint after being filtered by the filter, the air inlet source pipeline is connected with a gas booster pump driving air inlet through a low-pressure pipeline through a low-pressure ball valve I, the gas booster pump driving air outlet is emptied on site, and the low-pressure pipeline between the low-pressure ball valve I and the filter is connected with a pressure; the driving source pipeline is connected with a working air inlet of the gas booster pump through a low-pressure pipeline sequentially through a low-pressure ball valve II and a pressure reducing valve, the low-pressure pipeline between the pressure reducing valve and the gas booster pump is connected with a pressure gauge II arranged on an operation panel, an air inlet source is pressurized by the gas booster pump to be high-pressure gas, and the gas booster pump is fixed in the middle of the frame; the working gas outlet of the gas booster pump is sequentially divided into a high-pressure testing pipeline and a high-pressure emptying pipeline through a high-pressure pipeline by a high-pressure joint, a pressure regulating valve and a tee joint, the high-pressure pipeline between the high-pressure joint and the pressure regulating valve is connected with a pressure gauge III arranged on an operation panel, and the pressure regulating valve is arranged on the operation panel; the high-pressure testing pipeline is connected with the testing element through a high-pressure pipeline sequentially through a high-pressure ball valve I and a conversion joint, the high-pressure ball valve I is arranged on the operation panel, and the high-pressure pipeline between the pressure regulating valve and the high-pressure ball valve I is connected with a pressure gauge IV arranged on the operation panel; the high-pressure emptying pipeline is emptied after sequentially passing through a high-pressure ball valve II and a high-pressure needle valve which are arranged on the operation panel through the high-pressure pipeline, and the high-pressure joint is emptied after passing through a high-pressure safety valve II through the high-pressure pipeline; the pressure testing system and the device are used for realizing the calibration and the verification of the pressure element; testing the tightness and fatigue of the pressure element; or a high-pressure air source is provided for the air tightness detection of the pipelines in the hydrogen filling station and the vehicle-mounted hydrogen supply system and the pressurization of the vehicle-mounted hydrogen supply system or the pressurization of the pipeline.
2. The pressure testing system and apparatus of claim 1, wherein: the tool box is arranged on the lower portion of the frame on one side of the pipeline system, the front panel is arranged on the frame on the front side of the pipeline system, the handle is fixed on the frame on one side of the pipeline system through a butterfly bolt, the horse wheel is arranged at the bottom of the box body, when the test board is used for replacing a use place, the horse wheel can be moved through the handle, and the butterfly nut is adopted for fixing the handle so as to facilitate fixing in a working state and rotation of 0-180 degrees.
3. The pressure testing system and apparatus of claim 1, wherein: the gas source is pressurized gas, preferably nitrogen, helium or helium-doped nitrogen with the pressure of more than 0.2 MPa.
4. The pressure testing system and apparatus of claim 1, wherein: the high-pressure pipeline is provided with a pipe clamp for fixing and ensuring the safety of the high-pressure pipeline, the gas booster pump generates high-pressure gas, the pressure regulating valve is adjusted to perform pressure correction and inspection according to different requirements of the testing element on pressure, and the gas buffer is arranged at the front end of the pressure regulating valve, so that stepless stable regulation of the pressure is realized, and the stability and the precision of pressure output are guaranteed.
5. The pressure testing system and apparatus of claim 1, wherein: the conversion joint in the test system adopts an NPT pipe thread or ferrule form, and the specification and model of the NPT pipe thread or ferrule of the conversion joint are changed according to different calibers or types of the test elements to realize a multifunctional function; and a low-pressure pipeline between the low-pressure ball valve I and the gas booster pump is a metal or nonmetal pipe, and a low-pressure pipeline between the pressure reducing valve and the gas booster pump is a 316 stainless steel pipe.
6. The pressure testing system and apparatus of claim 1, wherein: the pressure reducing valve is fixed on a frame at one side of the gas booster pump through a pressure reducing valve base, and the safety valve is fixed on a frame at the other side of the gas booster pump through a fixing clamp; the frame on one side of the gas booster pump is provided with a rotary support frame for fixing a test element, a T-shaped slideway is arranged on the frame, the rotary support frame is in a right-angle shape, a spring bayonet lock is arranged in the rotary support frame to rotate by 0-90 degrees, the position of the rotary support frame is adjusted up and down, left and right and rotated by the angle according to the specification and the size of the test element and is fixed below the test element, and the rotary support frame is fixed and loosened in the frame through adjusting a plum bolt.
7. The pressure testing system and device as claimed in claim 1, wherein the method comprises the following steps: connecting the safety valve to a test system through an NPT pipe thread adapter, adjusting a rotary support frame arranged in a frame up and down, rotating the rotary support frame at an angle of 90 degrees, and fixing the rotary support frame below the safety valve by using a butterfly nut; the method comprises the steps that nitrogen is used as a medium in an air inlet source pipeline, a nitrogen bottle is used as a power source, a pipeline low-pressure ball valve I is opened to be in a normally open state through a gas source port of a testing system and a filter, a pressure gauge I value is observed to be pressurized to 10-15MPa in the air inlet source of a gas booster pump, a low-pressure ball valve II is opened to be in a normally open state in the driving source pipeline, a pressure gauge II value is observed through a pressure reducing valve until the pressure is reduced to 0.6-0.8MPa in the driving source pipeline, the gas booster pump generates high-pressure gas under the action of a driving source and air inlet source gas, the high-pressure gas passes through a 1/4-inch stainless steel pipe and is connected with a 9/16-inch stainless steel pipe through a high-pressure adapter, the high-pressure gas enters an air inlet of a high-pressure safety valve, the high-pressure needle valve and the high-pressure ball valve II are normally closed in a gas working state of the evacuation pipeline, the numerical value of the pressure regulating valve is regulated, the regulated pressure numerical value is observed by a pressure gauge IV, the high-pressure ball valve I is opened to lead gas to the safety valve after the pressure numerical value is reached, the gas enables the internal pressure of the safety valve to be increased to reach the set normal pressure by 1.5 times to jump, the jump pressure of the safety valve is normal, the low-pressure ball valve I of the gas inlet source, the low-pressure ball valve II of the driving source and the high-pressure ball valve; the sealing performance is adjusted to a normal set pressure range by the same method, the pressure is maintained for 24 hours, soapy water is used for observing whether the safety valve leaks, the air inlet source low-pressure ball valve I and the driving source low-pressure ball valve II are closed after 24 hours, the high-pressure needle valve and the high-pressure ball valve II of an emptying pipeline are opened for emptying, and the emptying is carried out discontinuously.
8. The pressure testing system and device as claimed in claim 1, wherein the method comprises the following steps: the conversion joint is connected to a nitrogen joint of a pipeline of a hydrogenation station, the caliber of the conversion joint is changed according to the caliber of the pipeline joint, a rotary support frame is placed below a frame slideway, the angle is 0 degree, and the rotary support frame is fixed in the frame without being fixed; opening an air inlet source low-pressure ball valve I and a driving source low-pressure ball valve II of an operation panel, pressurizing an air inlet source of a gas booster pump by taking nitrogen as a medium through an air source port of a test system and a filter, observing the numerical value of a pressure gauge I to be pressurized to 10-15MPa, observing the numerical value of the pressure gauge II to be depressurized to 0.6-0.8MPa through a pressure reducing valve, generating high-pressure gas by the gas booster pump under the action of the driving source and the air inlet source gas, switching the high-pressure gas to a 9/16-inch stainless steel pipe through a 1/4-inch stainless steel pipe through a high-pressure adapter, allowing the high-pressure gas to enter an air inlet of a high-pressure safety valve through a 1/4-inch stainless steel pipe and a tee joint, wherein the threshold value of the high-, the high-pressure needle valve and the high-pressure ball valve II are in normally closed state in a gas working state, the high-pressure ball valve I is pressurized to 70MPa, the high-pressure ball valve I is opened after the pressure value reaches, high-pressure gas enters the pipeline of the hydrogenation station, the pressure of the gas enters the pipeline of the hydrogenation station for 30min, the weld joint and the connecting part are checked, if leakage is not detected, the pressure of the pressure regulating valve is regulated to 35MPa, the gas enters the pipeline of the hydrogenation station, the pressure of the gas enters the pipeline of the hydrogenation station for 30min, the weld joint and the connecting part are checked, and if leakage is not detected.
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| CN201910838497.7A CN110594581B (en) | 2019-09-05 | 2019-09-05 | Pressure test system and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693276A (en) * | 2020-06-23 | 2020-09-22 | 四川凯德源科技有限公司 | High-efficiency pressure regulating box test method |
| CN113125145A (en) * | 2021-04-07 | 2021-07-16 | 成都特恩达燃气设备有限公司 | Gas valve testing device and testing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422587A (en) * | 2013-08-28 | 2015-03-18 | 曹宝玲 | High-pressure safety valve calibration equipment |
| CN206593816U (en) * | 2017-03-16 | 2017-10-27 | 岩谷气具(珠海)有限公司 | A kind of device for detecting performance of gas furnace pressure-reducing valve |
| CN208887871U (en) * | 2018-11-27 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | A kind of aircraft system air tightness tester |
| EP3499206A1 (en) * | 2017-12-14 | 2019-06-19 | Lippok & Wolf GmbH | Leak test system and method for performing a leak test on a container |
-
2019
- 2019-09-05 CN CN201910838497.7A patent/CN110594581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422587A (en) * | 2013-08-28 | 2015-03-18 | 曹宝玲 | High-pressure safety valve calibration equipment |
| CN206593816U (en) * | 2017-03-16 | 2017-10-27 | 岩谷气具(珠海)有限公司 | A kind of device for detecting performance of gas furnace pressure-reducing valve |
| EP3499206A1 (en) * | 2017-12-14 | 2019-06-19 | Lippok & Wolf GmbH | Leak test system and method for performing a leak test on a container |
| CN208887871U (en) * | 2018-11-27 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | A kind of aircraft system air tightness tester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693276A (en) * | 2020-06-23 | 2020-09-22 | 四川凯德源科技有限公司 | High-efficiency pressure regulating box test method |
| CN113125145A (en) * | 2021-04-07 | 2021-07-16 | 成都特恩达燃气设备有限公司 | Gas valve testing device and testing method |
| CN113125145B (en) * | 2021-04-07 | 2022-10-14 | 成都特恩达燃气设备有限公司 | Gas valve testing device and testing method |
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|---|---|
| CN110594581B (en) | 2024-01-19 |
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