CN108680317A - Based on the steel cylinder airtightness testing method for smelling quick instrument - Google Patents
Based on the steel cylinder airtightness testing method for smelling quick instrument Download PDFInfo
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- CN108680317A CN108680317A CN201810292750.9A CN201810292750A CN108680317A CN 108680317 A CN108680317 A CN 108680317A CN 201810292750 A CN201810292750 A CN 201810292750A CN 108680317 A CN108680317 A CN 108680317A
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- pressure
- steel cylinder
- valve
- air
- gauge outfit
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of based on the steel cylinder airtightness testing method for smelling quick instrument.The present invention is mainly suitable for steel cylinder air-tight test, control centre realizes the real-time monitoring to interior of steel bottle pressure by pressure sensor, the monitoring revealed micro special gas is realized by smelling quick instrument, to realize the automation of steel cylinder air-tight test.The present invention realizes steel cylinder air-tight test, greatly reduces the fault rate of artificial detection, improves detection efficiency, has the advantages that height automates, is inexpensive, efficient.
Description
Technical field
It is the invention belongs to steel cylinder detection technique field, more particularly to a kind of based on the steel cylinder air-tight test side for smelling quick instrument
Method.
Background technology
Steel cylinder is the loading tool of various gases, liquid, is had in terms of people's daily life and industrial production extensive
Using.Steel cylinder enormous amount is often moved and is repeated refitting, and use environment is also usually relatively more severe, once exploding, gives
People's lives and properties bring heavy losses, and tremendous influence is caused to social safety.
One of mass parameter of steel cylinder is exactly air-tightness, this mass parameter is to ensure the important indicator of steel cylinder safe handling
One of.It is traditional that by artificial observation measured piece, whether bubbling judges that the method for air-tightness has significant limitation water-bed.
Therefore, a kind of method and device based on the steel cylinder air-tight test for smelling quick instrument of invention is of great significance.
Invention content
The present invention is aiming at the deficiencies in the prior art, it is proposed that a method of realizing steel cylinder gas air-tight test.
The method of the present invention includes the following steps：
Pressure-air air source 1, the high pressure valve 1 of step (1) selection pressure supply 1-40MPa, the pressure sensor 1 shown with gauge outfit
The seal box of a special gas air source 1, solenoid valve 1, relief valve 1, steel cylinder to be measured 1, loading steel cylinder with special gas
1, sensitive to special gas smell 1, quick instrument, 1, control centre；The special gas is exactly to smell sensitive natural of quick instrument
One of the steam of gas, artificial coal gas, liquefied petroleum gas, hydrogen, methane, propane, butane, organic solvent.
Step (2) connects the output end of pressure-air air source with the input terminal of high pressure valve with pressure-bearing pipe, high pressure valve it is defeated
Outlet is connected with the input terminal of the pressure sensor shown with gauge outfit with pressure-bearing pipe；By the output end of special gas air source and solenoid valve
Input terminal is connected with pressure-bearing pipe, the output end of the output end of solenoid valve and the pressure sensor shown with gauge outfit, relief valve it is defeated
Enter the input port that end is connected to steel cylinder to be measured with pressure-bearing pipe jointly；Steel cylinder to be measured is placed in seal box, a band of seal box
There is the outlet that wind turbine is blown to be connected with the input terminal for smelling quick instrument；The pressure that control centre is shown with high pressure valve, with gauge outfit respectively
Sensor, relief valve, is smelt quick instrument and is connected with data line solenoid valve.
After step (3) system electrification, high pressure valve, solenoid valve, relief valve are closed；Open relief valve so that wait for
It is consistent with atmospheric gas pressure to survey steel cylinder air pressure.
Step (4) closes relief valve, opens solenoid valve, and special gas air source injects special gas to steel cylinder to be measured.
Step (5) closes solenoid valve, opens high pressure valve, and the pressure sensor shown with gauge outfit is read by control centre
Pressure value；After the pressure value of the pressure sensor shown with gauge outfit reaches steel cylinder operating pressure P0 to be measured, high pressure is closed
Valve.
After step (6) closes high pressure valve, control centre continues to read the pressure value P of the pressure sensor shown with gauge outfit
(t), while control centre reads special gas concentration information from quick instrument is smelt；By time T, control centre reads band gauge outfit and shows
The fluctuation of pressure value P (t) of pressure sensor be less than pressure error dP and be less than from smelling quick instrument and reading special gas concentration
Default value M, then steel cylinder air-leakage test is qualified, otherwise unqualified.
Step (7) opens relief valve, discharges interior of steel bottle gas to be measured, completes steel cylinder air-tight test.
The present invention is mainly suitable for steel cylinder air-tight test, control centre is realized by pressure sensor to interior of steel bottle
The real-time monitoring of pressure realizes the monitoring revealed micro special gas by smelling quick instrument, to realize the examination of steel cylinder air-tightness
The automation tested.The present invention realizes steel cylinder air-tight test, greatly reduces the fault rate of artificial detection, improves detection effect
Rate has the advantages that height automates, is inexpensive, efficient.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, realizing that the device of steel cylinder air-tight test includes the pressure-air air source 1 of pressure supply 1-40MPa, height
Pressure valve 1, pressure sensor 1, special gas air source 1, solenoid valve 1, the relief valve 1 with special gas shown with gauge outfit
Steel cylinder 1 a, to be measured, sensitive to special gas smells 1, quick instrument, 1, control centre at the seal box 1 for loading steel cylinder；It is described
Special gas be exactly the natural gas for smelling quick instrument sensitivity, it is artificial coal gas, liquefied petroleum gas, hydrogen, methane, propane, butane, organic
One of steam of solvent.
The output end of pressure-air air source 1 is connected with the input terminal of high pressure valve 2 with pressure-bearing pipe, the output end of high pressure valve 2 and
The input terminal of the pressure sensor 3 shown with gauge outfit is connected with pressure-bearing pipe；By the defeated of the output end of special gas air source 4 and solenoid valve 5
Enter end to be connected with pressure-bearing pipe, the output end of the output end of solenoid valve 5 and the pressure sensor 3 shown with gauge outfit, relief valve 6 it is defeated
Enter the input port that end is connected to steel cylinder 7 to be measured with pressure-bearing pipe jointly；Steel cylinder 7 to be measured is placed in seal box 8, and the one of seal box 8
A outlet with wind turbine air-supply is connected with the input terminal for smelling quick instrument 9；Control centre 10 is shown with high pressure valve 2, band gauge outfit respectively
The pressure sensor 3 that shows, relief valve 6, is smelt quick instrument 9 and is connected with data line solenoid valve 5.
Included the following steps using the steel cylinder air-tight test of the device：
(1) select 1 pressure supply 40MPa the high pressure valve 2,1 of pressure-air air source 1,1 pressure sensor 3 shown with gauge outfit,
1 carries special gas（Natural gas）The loading of the relief valve 6,1 of solenoid valve 5,1 of special gas air source 4,1 steel cylinder to be measured 7,1
The seal box 8,1 of steel cylinder is to special gas（Natural gas）Sensitive smells 9,1 control centres 10 of quick instrument；The special gas
Exactly smell the natural gas of quick instrument sensitivity.
(2) output end of pressure-air air source 1 is connected with the input terminal of high pressure valve 2 with pressure-bearing pipe, the output of high pressure valve 2
End is connected with the input terminal of the pressure sensor 3 shown with gauge outfit with pressure-bearing pipe；By the output end and solenoid valve 5 of special gas air source 4
Input terminal connected with pressure-bearing pipe, input terminal, the relief valve 6 of the output end of solenoid valve 5 and the pressure sensor 3 shown with gauge outfit
Input terminal the input port of steel cylinder 7 to be measured is connected to pressure-bearing pipe jointly；Steel cylinder 7 to be measured is placed in seal box 8, seal box 8
One with wind turbine air-supply outlet connected with the input terminal for smelling quick instrument 9；By control centre 10 respectively with high pressure valve 2, with table
The pressure sensor 3 of head display, relief valve 6, is smelt quick instrument 9 and is connected with data line solenoid valve 5.
(3) after system electrification, high pressure valve 2, solenoid valve 5, relief valve 6 are closed；Open relief valve 6 so that wait for
It is consistent with atmospheric gas pressure to survey 8 air pressure of steel cylinder.
(4) relief valve 6, opens solenoid valve 5 are closed, special gas air source 3 injects special gas to steel cylinder 8 to be measured.
(5) solenoid valve 5 is closed, high pressure valve 2 is opened, the pressure sensor 3 shown with gauge outfit is read by control centre
Pressure value；After the pressure value of the pressure sensor 3 shown with gauge outfit reaches steel cylinder operating pressure P0=20MPa to be measured, close
Close high pressure valve 2.
(6) after closing high pressure valve 2, control centre 10 continues to read the pressure value P of the pressure sensor 3 shown with gauge outfit
(t), while control centre 10 reads special gas concentration information from quick instrument 9 is smelt；By time T=30 minute, control centre 10 reads
The fluctuation of the pressure value P (t) of the pressure sensor 9 shown with gauge outfit is taken to be less than pressure error dP=0.01MPa and from smelling quick instrument
9, which read special gas concentration, is less than default value M=0.001, and 7 air-leakage test of steel cylinder to be measured is qualified.
(7) relief valve 6 is opened, 8 internal gas of steel cylinder to be measured is discharged, completes steel cylinder air-tight test.
Claims (2)
1. based on the steel cylinder airtightness testing method for smelling quick instrument, it is characterised in that this method comprises the following steps：
Pressure-air air source 1, the high pressure valve 1 of step (1) selection pressure supply 1-40MPa, the pressure sensor 1 shown with gauge outfit
The seal box of a special gas air source 1, solenoid valve 1, relief valve 1, steel cylinder to be measured 1, loading steel cylinder with special gas
1, sensitive to special gas smell 1, quick instrument, 1, control centre；
Step (2) connects the output end of pressure-air air source with the input terminal of high pressure valve with pressure-bearing pipe, the output end of high pressure valve
It is connected with pressure-bearing pipe with the input terminal of the pressure sensor shown with gauge outfit；By the input of the output end and solenoid valve of special gas air source
End is connected with pressure-bearing pipe, the output end of the output end of solenoid valve and the pressure sensor shown with gauge outfit, the input terminal of relief valve
The input port of steel cylinder to be measured is connected to pressure-bearing pipe jointly；Steel cylinder to be measured is placed in seal box, and one of seal box carries wind
The outlet of machine air-supply is connected with the input terminal for smelling quick instrument；The pressure sensing that control centre is shown with high pressure valve, with gauge outfit respectively
Device, relief valve, is smelt quick instrument and is connected with data line solenoid valve；
After step (3) system electrification, high pressure valve, solenoid valve, relief valve are closed；Open relief valve so that steel to be measured
Bottle air pressure is consistent with atmospheric gas pressure；
Step (4) closes relief valve, opens solenoid valve, and special gas air source injects special gas to steel cylinder to be measured；
Step (5) closes solenoid valve, opens high pressure valve, and the pressure of the pressure sensor shown with gauge outfit is read by control centre
Numerical value；After the pressure value of the pressure sensor shown with gauge outfit reaches steel cylinder operating pressure P0 to be measured, high pressure valve is closed；
After step (6) closes high pressure valve, control centre continues to read the pressure value P (t) of the pressure sensor shown with gauge outfit,
Control centre reads special gas concentration information from quick instrument is smelt simultaneously；By time T, control centre reads the pressure shown with gauge outfit
The fluctuation of the pressure value P (t) of force snesor is less than pressure error dP and reads special gas concentration less than default from quick instrument is smelt
Numerical value M, then steel cylinder air-leakage test is qualified, otherwise unqualified；
Step (7) opens relief valve, discharges interior of steel bottle gas to be measured, completes steel cylinder air-tight test.
2. according to claim 1 based on the steel cylinder airtightness testing method for smelling quick instrument, it is characterised in that：The special type
Gas is the steam of natural gas, artificial coal gas, liquefied petroleum gas, hydrogen, methane, propane, butane or organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292750.9A CN108680317A (en) | 2018-03-30 | 2018-03-30 | Based on the steel cylinder airtightness testing method for smelling quick instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292750.9A CN108680317A (en) | 2018-03-30 | 2018-03-30 | Based on the steel cylinder airtightness testing method for smelling quick instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108680317A true CN108680317A (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810292750.9A Pending CN108680317A (en) | 2018-03-30 | 2018-03-30 | Based on the steel cylinder airtightness testing method for smelling quick instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002148138A (en) * | 2000-11-15 | 2002-05-22 | Shinichiro Arima | Gas leakage detector and leakage inspection method for liquefied petroleum gas/town gas lamp inner pipe |
| CN203099326U (en) * | 2013-01-30 | 2013-07-31 | 中南林业科技大学 | Gas-leakage smart monitoring alarm device for vehicle-mounted natural gas bottle |
| CN204255582U (en) * | 2014-10-24 | 2015-04-08 | 武义西林德机械制造有限公司 | A kind of steel cylinder air-tightness detection device |
| CN205785712U (en) * | 2016-05-30 | 2016-12-07 | 浙江蓝能燃气设备有限公司 | Steel cylinder air tight test device |
| CN206787778U (en) * | 2017-05-15 | 2017-12-22 | 杭州巴固机械制造有限公司 | Valve gas cylinder test device for air tightness |
-
2018
- 2018-03-30 CN CN201810292750.9A patent/CN108680317A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002148138A (en) * | 2000-11-15 | 2002-05-22 | Shinichiro Arima | Gas leakage detector and leakage inspection method for liquefied petroleum gas/town gas lamp inner pipe |
| CN203099326U (en) * | 2013-01-30 | 2013-07-31 | 中南林业科技大学 | Gas-leakage smart monitoring alarm device for vehicle-mounted natural gas bottle |
| CN204255582U (en) * | 2014-10-24 | 2015-04-08 | 武义西林德机械制造有限公司 | A kind of steel cylinder air-tightness detection device |
| CN205785712U (en) * | 2016-05-30 | 2016-12-07 | 浙江蓝能燃气设备有限公司 | Steel cylinder air tight test device |
| CN206787778U (en) * | 2017-05-15 | 2017-12-22 | 杭州巴固机械制造有限公司 | Valve gas cylinder test device for air tightness |
Non-Patent Citations (1)
| Title |
|---|
| 范亚军等: "基于电子鼻技术的泄漏医用气体监测系统的设计", 《医疗卫生装备》 * |
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Application publication date: 20181019 |
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| RJ01 | Rejection of invention patent application after publication |