CN106768708A - It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method - Google Patents

It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method Download PDF

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Publication number
CN106768708A
CN106768708A CN201710019758.3A CN201710019758A CN106768708A CN 106768708 A CN106768708 A CN 106768708A CN 201710019758 A CN201710019758 A CN 201710019758A CN 106768708 A CN106768708 A CN 106768708A
Authority
CN
China
Prior art keywords
vacuum
extinguishing device
measured
box body
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710019758.3A
Other languages
Chinese (zh)
Inventor
李建芳
王玉峰
赵夺
吴瑜斌
吴存哲
李鹏飞
邱忠友
刘晟祥
沈秀菲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING SHENGTAI FIRE FIGHTING EQUIPMENT Co Ltd
Original Assignee
BEIJING SHENGTAI FIRE FIGHTING EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING SHENGTAI FIRE FIGHTING EQUIPMENT Co Ltd filed Critical BEIJING SHENGTAI FIRE FIGHTING EQUIPMENT Co Ltd
Priority to CN201710019758.3A priority Critical patent/CN106768708A/en
Publication of CN106768708A publication Critical patent/CN106768708A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating 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

Abstract

The invention discloses a kind of for detecting vacuum tank and method without pressure extinguishing device sealing, concretely comprise the following steps:First, on the placement plate that multiple extinguishing devices to be measured are placed in vacuum tank;2nd, operation is slightly taken out:Vacuum box body is vacuumized 15 35 seconds using vavuum pump;3rd, secondary vacuum pumping operation:Then vacuum box body is continued to vacuumize using vavuum pump, until pressure vacuum gauge reaches predetermined numerical value;4th, inspection process:Check whether extinguishing device to be measured leaks by observation window.This is used to detect that the vacuum tank without pressure extinguishing device sealing is reasonable in design that simple structure, using vacuum tank negative pressure leakage detection method, to be capable of achieving the detection of the airtight quality of extinguishing device to be measured;And detection method is simple and easy to apply, the sealing of extinguishing device to be measured can be intuitively judged by naked eyes, testing result error is smaller;And the method also has the advantages that testing cost is low.

Description

It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method
Technical field
The present invention relates to a kind of detection means, it is specifically a kind of for detect without pressure extinguishing device sealing vacuum tank and Method.
Background technology
Chemical substance is placed in fire-extinguishing apparatus, is used to rescue fire extinguishing calamity, be stored in public place or the ground of fire may occur Side, the composition of filling is different in different types of fire extinguisher, is to aim at different fire alarms and set, must be noted that when using in order to avoid Produce minus effect and cause danger.
Fire-extinguishing apparatus needs to carry out airtight quality detection before dispatching from the factory, and carrying out suitably repairing means if any leak source solves.Pass System have pressure fire-extinguishing apparatus bottle group be all after manufacturing the phase carry out every detection, including air seal test, water pressure test etc., It is whether qualified with inspecting bottles group crudy.Intuitively the storage of display bottle group numerical value can be pressed due to loading extinguishing agent pressure table, sentenced Break very easy.And extinguishing chemical is encapsulated in housing during the making without pressure fire-extinguishing apparatus, the sealing after encapsulation Quality can only by observing, hand is clapped, observation whether there is the method for leakage extinguishing chemical phenomenon determines that the full experience with inspection personnel of detection is sentenced Disconnected, testing result error is larger, while also not directly perceived enough.
The content of the invention
It is an object of the invention to provide a kind of for detecting vacuum tank and method without pressure extinguishing device sealing, to solve The problem proposed in certainly above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme:
It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method, including vacuum box body, place plate;Institute State and chamber door is provided with vacuum box body, observation window is provided with chamber door, placement plate, fire extinguishing to be measured are installed in vacuum box body Device is placed on placement plate, and vacuum box body upper end is provided with pressure vacuum gauge, vacuum-pumping valve and air intake valve;The vacuum Box body is connected by vacuum-pumping valve with vavuum pump.
As further scheme of the invention:The observation window is made of transparent material.
As further scheme of the invention:Placement plate is horizontally installed with the vacuum box body.
It is a kind of for detect without pressure extinguishing device sealing method, concretely comprise the following steps:
First, on the placement plate that multiple extinguishing devices to be measured are placed in vacuum tank, gap between each extinguishing device to be measured Arrangement, closes chamber door;
2nd, operation is slightly taken out:Vacuum box body is vacuumized 15-35 seconds using vavuum pump;
3rd, secondary vacuum pumping operation:Then vacuum box body is continued to vacuumize using vavuum pump, until pressure vacuum gauge When reaching predetermined numerical value, vavuum pump is stopped, and closes vacuum-pumping valve;
4th, inspection process:Check whether extinguishing device to be measured leaks by observation window, if extinguishing device to be measured does not have Leak, then judge that extinguishing device sealing to be measured is intact;If extinguishing device to be measured is leaked from leak source to vacuum tank, repaiied Mend, then re-start step one.
As further scheme of the invention:The step 2, slightly take out operation:Vacuum box body is taken out using vavuum pump Vacuum 25 seconds.
Compared with prior art, the beneficial effects of the invention are as follows:
This is reasonable in design for vacuum tank of the detection without pressure extinguishing device sealing, simple structure, using vacuum tank negative pressure Leak hunting method, is capable of achieving the detection of the airtight quality of extinguishing device to be measured;And detection method is simple and easy to apply, can be straight by naked eyes The sealing for judging extinguishing device to be measured seen, testing result error is smaller;And the method also has testing cost low Advantage.
Brief description of the drawings
Fig. 1 is the structural representation for detecting the vacuum tank without pressure extinguishing device sealing.
Wherein:1- vacuum box bodies;2- observation windows;3- chamber doors;4- places plate;5- pressure vacuum gauges;6- vacuum-pumping valves; 7- air intake valves;8- extinguishing devices to be measured.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Fig. 1 is referred to, it is a kind of for detecting the vacuum tank without pressure extinguishing device sealing, including vacuum box body 1, placement Plate 4;Chamber door 3 is provided with the vacuum box body 1, observation window 2 is provided with chamber door 3, vacuum tank case is observed by observation window 2 Placement plate 4 is horizontally installed with phenomenon in body 1, vacuum box body 1, extinguishing device to be measured 8 is placed on placement plate 4, vacuum tank The upper end of casing 1 is provided with pressure vacuum gauge 5, vacuum-pumping valve 6 and air intake valve 7;The vacuum box body 1 passes through vacuum pumping valve Door 6 is connected with vavuum pump;Observation window 2 is made of transparent material.
It is a kind of for detect without pressure extinguishing device sealing method, concretely comprise the following steps:
First, on the placement plate 4 that multiple extinguishing devices to be measured 8 are placed in vacuum tank, between each extinguishing device to be measured 8 between Gap is arranged, convenient observation, closes chamber door 3;
2nd, operation is slightly taken out:Vacuum box body 1 is vacuumized 25 seconds using vavuum pump;
3rd, secondary vacuum pumping operation:Then vacuum box body 1 is continued to vacuumize using vavuum pump, until vacuum pressure When table 5 reaches predetermined numerical value, vavuum pump is stopped, and closes vacuum-pumping valve 6;
4th, inspection process:Check whether extinguishing device to be measured 8 leaks by observation window 2, if extinguishing device 8 to be measured Do not have to leak, then judge that extinguishing device to be measured 8 seals intact;If extinguishing device to be measured 8 is leaked from leak source to vacuum tank, Repaired, then re-started step one, so as to prove to have repaired intact.
Operation principle of the invention is:Because extinguishing device to be measured 8 is sealing, so in the tank of extinguishing device to be measured 8 Pressure is isobaric with the external world, if the reduction of vacuum tank air pressure, sealing intact extinguishing device to be measured 8 will not leak, and The extinguishing device to be measured 8 for not having good seal can then be leaked from leak source to vacuum tank.Such that it is able to intuitively judge fire extinguishing to be measured The sealing of device 8.
This is reasonable in design for vacuum tank of the detection without pressure extinguishing device sealing, simple structure, using vacuum tank negative pressure Leak hunting method, realizes the airtight quality of extinguishing device to be measured 8;And detection method is simple and easy to apply, can intuitively be sentenced by naked eyes Break and the sealing of extinguishing device to be measured 8, testing result error is smaller;And the method also has the advantages that testing cost is low.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from Make a variety of changes.

Claims (5)

1. it is a kind of for detecting the vacuum tank without pressure extinguishing device sealing, it is characterised in that including vacuum box body (1), to put Put plate (4);Chamber door (3) is provided with the vacuum box body (1), observation window (2), vacuum box body are provided with chamber door (3) (1) placement plate (4) is installed, extinguishing device (8) to be measured is placed in placement plate (4), and vacuum box body (1) upper end is provided with very in Hollow pressure gauge (5), vacuum-pumping valve (6) and air intake valve (7);The vacuum box body (1) by vacuum-pumping valve (6) with it is true Empty pump connection.
2. it is according to claim 1 for detecting the vacuum tank without pressure extinguishing device sealing, it is characterised in that the sight Window (2) is examined to be made of transparent material.
3. it is according to claim 1 for detecting the vacuum tank without pressure extinguishing device sealing, it is characterised in that described true Placement plate (4) is horizontally installed with empty van casing (1).
4. it is a kind of as described in claim 1-3 is any for detect without pressure extinguishing device sealing method, it is characterised in that Concretely comprise the following steps:
First, on the placement plate (4) that multiple extinguishing devices (8) to be measured are placed in vacuum tank, between each extinguishing device (8) to be measured Gap arrangement, closes chamber door (3);
2nd, operation is slightly taken out:Vacuum box body (1) is vacuumized 15-35 seconds using vavuum pump;
3rd, secondary vacuum pumping operation:Then vacuum box body (1) is continued to vacuumize using vavuum pump, until pressure vacuum gauge (5) when reaching predetermined numerical value, vavuum pump is stopped, and closes vacuum-pumping valve (6);
4th, inspection process:Check whether extinguishing device to be measured (8) leaks by observation window (2), if extinguishing device to be measured (8) it is no to leak, then judge that extinguishing device to be measured (8) sealing is intact;If extinguishing device (8) to be measured is from leak source to vacuum tank Leakage, then repaired, and then re-starts step one.
5. it is according to claim 4 for detecting the method without pressure extinguishing device sealing, it is characterised in that the step 2nd, operation is slightly taken out:Vacuum box body (1) is vacuumized 25 seconds using vavuum pump.
CN201710019758.3A 2017-01-12 2017-01-12 It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method Pending CN106768708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710019758.3A CN106768708A (en) 2017-01-12 2017-01-12 It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710019758.3A CN106768708A (en) 2017-01-12 2017-01-12 It is a kind of for detect without pressure extinguishing device sealing vacuum tank and method

Publications (1)

Publication Number Publication Date
CN106768708A true CN106768708A (en) 2017-05-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019088551A (en) * 2017-11-15 2019-06-13 株式会社未来巣 Fire extinguisher leakage test equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1707235A (en) * 2004-06-04 2005-12-14 精碟科技股份有限公司 Gas leakage detector
CN202126341U (en) * 2011-06-10 2012-01-25 江山市江郎峰消防设备有限公司 Pressure test device
CN202886070U (en) * 2012-11-29 2013-04-17 浙江求真消防设备有限公司 Pressure detection device of large-sized fire extinguishing steel bottle
CN203037536U (en) * 2012-12-31 2013-07-03 浙江瑞华机械有限公司 Pressure resistance and sealing performance air detection all-in-one machine for fire extinguisher barrel
CN206488899U (en) * 2017-01-11 2017-09-12 北京生泰消防装备有限公司 It is a kind of to be used to detect the vacuum tank without pressure extinguishing device sealing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1707235A (en) * 2004-06-04 2005-12-14 精碟科技股份有限公司 Gas leakage detector
CN202126341U (en) * 2011-06-10 2012-01-25 江山市江郎峰消防设备有限公司 Pressure test device
CN202886070U (en) * 2012-11-29 2013-04-17 浙江求真消防设备有限公司 Pressure detection device of large-sized fire extinguishing steel bottle
CN203037536U (en) * 2012-12-31 2013-07-03 浙江瑞华机械有限公司 Pressure resistance and sealing performance air detection all-in-one machine for fire extinguisher barrel
CN206488899U (en) * 2017-01-11 2017-09-12 北京生泰消防装备有限公司 It is a kind of to be used to detect the vacuum tank without pressure extinguishing device sealing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019088551A (en) * 2017-11-15 2019-06-13 株式会社未来巣 Fire extinguisher leakage test equipment

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Application publication date: 20170531