CN106323700A - Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof - Google Patents
Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof Download PDFInfo
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- CN106323700A CN106323700A CN201610628196.8A CN201610628196A CN106323700A CN 106323700 A CN106323700 A CN 106323700A CN 201610628196 A CN201610628196 A CN 201610628196A CN 106323700 A CN106323700 A CN 106323700A
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- pressure
- spring
- gas sampling
- elastic support
- internal stay
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof. The device comprises an air bag, an inner supporting spring arranged in an inner cavity of the air bag, an air port which is communicated with the inner cavity of the air bag and an inlet-outlet control valve arranged on the air port. The air bag comprises a lower flexible support chip, an upper flexible support chip, and a compressed sealing strip which connects both the upper flexible support chip and the lower flexible support chip; the upper flexible support chip and the lower support chip are arranged in a mirror symmetry mode, and the inner cavity of the air bag used for containing gases is formed by the upper and lower support chips in an enclosing mode. The device is used for gathering trace air in checkout equipment. Compared with the prior art, the spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure has the advantages of being simple and compact in overall structure, economical and practical, low in cost, fast in start and stop, easy to carry and distribute, capable of carrying on large scale sampling in a short time, and effectively improving precision of the detected trace gas, thus having a very bright application prospect.
Description
Technical field
The invention belongs to minimal feeding technical field, relate to a kind of gas sampling assembly and application thereof, especially relate to
And a kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly and application thereof.
Background technology
In minimal feeding field, trace gas detection need use specialty gas componant detection equipment, wherein,
Gas sampling bag is a kind of common gas sampling assembly, may be used for petrochemical industry, environmental monitoring field or industry ring
Guarantor field etc..The seal request of gas sampling bag is the highest, once by ambient atmos contaminated samples, will have a strong impact on detection knot
Really.But, existing gas sampling bag has the following disadvantages: 1) sealing property is poor, controllability is poor, carries out quantitative
Gas sampling time error is bigger；2) corrosion resistance is the most poor, and once sample gas is the corrosivity such as hydrogen sulfide, sulfur dioxide
Gas, ventilation valve body is easily corroded, and impact uses the air-tightness of gas sampling bag, and then affects the result of gas detecting；3)
Need external power supply, air pump when gathering gas, operate relatively complicated, and electric spark may be produced in use, cause danger
Dangerous situation condition occurs.
The Chinese invention patent of Application No. 201210560392.8 discloses a kind of gas sampling bag, including a sealing bag
Body, this sealing bag is provided with a breather valve.Described breather valve includes a valve body and a spool corresponding with described valve body, described
Spool is threaded io described valve body, is provided with the first sealing ring between described spool lateral wall and described valve body medial wall.Described
Spool lower end is positioned at described valve body, and its upper end is provided with a spool groove, described breather valve also include one with described spool groove
Corresponding lid, described lid is threaded io in described spool groove, inside described lid lateral wall and described spool groove
The second sealing ring it is provided with between wall.The gas sampling bag controllability of this patent disclosure is good, it is simple to realize quantitative gas sampling
Accurately controlling, described breather valve corrosion resistance is good, favorable sealing property, may be used for storage and has certain corrosive gas,
Simple to operate, convenient and swift.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of overall structure simple,
Economic and practical is good, it is safe and reliable to operate, air-tightness is good spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly, this device includes airbag, is arranged on airbag inner chamber
In internal stay spring and the QI KOU of airbag intracavity inter-connection and be arranged on the intake and exhaust control valve at QI KOU.
Described airbag includes lower elastic support sheet, upper elastic support sheet and by lower elastic support sheet and upper resilient support
The pressing sealing strip that sheet links together, described lower elastic support sheet and upper elastic support sheet are that mirror image is arranged, and jointly enclose and set
Become the airbag inner chamber for accommodating gas.
Inner lining film is further respectively had on described lower elastic support sheet, the medial surface of upper elastic support sheet.
Described inner lining film is polytetrafluoroethylene film.
The bottom of described internal stay spring is fixed on lower elastic support sheet, and top is propped up with upper elasticity by rigid support plate
Blade contact connects.
Described rigid support plate is thin metal rigidity gripper shoe.
Described internal stay spring is cylindrical compression spring or turriform spring.
As preferred technical scheme, described internal stay spring is turriform spring.
Described lower elastic support sheet, upper elastic support sheet are round rubber sheet.
Described intake and exhaust control valve is ball valve.
The application of a kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly, described device is used for minimum gas
The gas collecting of detection equipment.
Airbag in the present invention is to be formed, in order to improve by the two panels round rubber sheet pressing of inner liner polytetrafluoroethylene thin film
The air-tightness of whole airbag, needs to arrange pressing sealing strip at the pressing of two panels round rubber sheet.When actually used, described
Turriform spring when compressed in Thin Disk form, make sampler bag be in contraction state；And when needing to gather gas, described
Intake and exhaust control valve is opened, and turriform spring restores, and airbag volume increases, and forms negative pressure, make gas flow in bag.
Handling in order to improve the automatization of device, described intake and exhaust control valve can select electrical ball valve, and device sets
There is the electric controller electrically connected with electrical ball valve, operation can be remotely controlled.
Compared with prior art, the invention have the characteristics that:
1) sampling need not power supply, air pump, strong adaptability at the scene, will not produce the electric spark of danger；
2) from can determine that the effectiveness of evacuation in appearance, the invalid sampling of not air inlet is not resulted in, more superior than Dewar bottle；
3) overall structure is simple, compact, economical and practical, with low cost, opens and closes rapidly, it is simple to carry and layout, can be in short-term
In sample on a large scale, the precision of trace gas detection can be effectively improved, there is good application prospect.
Accompanying drawing explanation
Fig. 1 is the sample states structural representation of the present invention；
Fig. 2 is standby status architecture schematic diagram after the bleeding of the present invention；
Description of symbols in figure:
1 time elastic support sheet, elastic support sheet, 3 pressing sealing strips, 4 airbag inner chambers, 5 internal stay bullets on 2
Spring, 6 rigid support plate, 7 QI KOU, 8 intake and exhaust control valves.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Figure 1-2, a kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly, including airbag, it is arranged on gas
The QI KOU 7 that is connected with airbag inner chamber 4 of internal stay spring 5 in bag inner chamber 4 and be arranged on the intake and exhaust control valve at QI KOU 7
8。
Wherein, airbag includes lower elastic support sheet 1, upper elastic support sheet 2 and is propped up with upper elasticity by lower elastic support sheet 1
The pressing sealing strip 3 that blade 2 links together, lower elastic support sheet 1 is arranged in mirror image with upper elastic support sheet 2, jointly encloses and sets
Become the airbag inner chamber 4 for accommodating gas.Lower elastic support sheet 1, upper elastic support sheet 2 medial surface on further respectively have liner
Thin film.Inner lining film is polytetrafluoroethylene film.
The bottom of internal stay spring 5 is fixed on lower elastic support sheet 1, and top is by rigid support plate 6 and upper resilient support
Sheet 2 contact connects.Internal stay spring 5 is turriform spring.Lower elastic support sheet 1, upper elastic support sheet 2 are round rubber sheet.Enter
Gas exhausting valve 8 is ball valve.
In the present embodiment, internal stay spring 5, when compressed in Thin Disk form, makes airbag be in contraction state.Intake and exhaust
When control valve 8 is opened, internal stay spring 5 restores, and airbag volume increases, and forms negative pressure in airbag inner chamber 4, makes ambient atmos by entering row
Gas control valve 8 flows in airbag inner chamber 4.
The present embodiment device is for the gas collecting of trace gas detection equipment.
Before sampling, connection air pump, to QI KOU 7, is opened intake and exhaust control valve 8 and is bled, and monitor with vacuum meter
Situation about bleeding, in pumping process, internal stay spring 5 is compressed, and airbag gradually becomes flat, turns off after being extracted into predetermined vacuum level
Valve, takes off airbag standby.
Arrive sampling position, airbag is placed in suitable place, or is connected to need, on the pipeline of sampling, to open intake and exhaust
Control valve 8, the power of internal stay spring 5 can discharge owing to pressure reduction diminishes, and props up airbag inner chamber 4, makes more gas flow into,
Closing intake and exhaust control valve 8 after expanding and stopping, sampling process terminates.That is releasable gas of internal stay spring 5 is extruded from airbag
Sample.
Embodiment 2:
In the present embodiment, internal stay spring 5 is cylindrical compression spring.Remaining is with embodiment 1.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use invention.
These embodiments obviously easily can be made various amendment by person skilled in the art, and described herein typically
Principle is applied in other embodiments without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel should be the present invention's according to the announcement of the present invention, the improvement made without departing from scope and amendment
Within protection domain.
Claims (9)
1. a spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly, it is characterised in that this device includes airbag, setting
QI KOU (7) that internal stay spring (5) in airbag inner chamber (4) is connected with airbag inner chamber (4) and be arranged on QI KOU (7) place
Intake and exhaust control valve (8).
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly the most according to claim 1, it is characterised in that
Described airbag includes lower elastic support sheet (1), upper elastic support sheet (2) and is propped up with upper elasticity by lower elastic support sheet (1)
The pressing sealing strip (3) that blade (2) links together, described lower elastic support sheet (1) and upper elastic support sheet (2) are in mirror image
Arrange, jointly enclose the airbag inner chamber (4) being set as accommodating gas.
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly the most according to claim 2, it is characterised in that
Described lower elastic support sheet (1), upper elastic support sheet (2) medial surface on further respectively have inner lining film.
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly the most according to claim 3, it is characterised in that
Described inner lining film is polytetrafluoroethylene film.
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly the most according to claim 2, it is characterised in that
The bottom of described internal stay spring (5) is fixed on lower elastic support sheet (1), and top is by rigid support plate (6) and upper elasticity
Support chip (2) contact connects.
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly the most according to claim 5, it is characterised in that
Described internal stay spring (5) is cylindrical compression spring or turriform spring.
7. according to a kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly described in any one of claim 2 to 6, its
Being characterised by, described lower elastic support sheet (1), upper elastic support sheet (2) are round rubber sheet.
A kind of spring internal stay self-priming normal-pressure/negative-pressure gas sampling assembly the most according to claim 7, it is characterised in that
Described intake and exhaust control valve (8) is ball valve.
The application of a kind of spring internal stay the most as claimed in claim 1 self-priming normal-pressure/negative-pressure gas sampling assembly, its feature exists
In, described device is for the gas collecting of trace gas detection equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628196.8A CN106323700A (en) | 2016-08-03 | 2016-08-03 | Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628196.8A CN106323700A (en) | 2016-08-03 | 2016-08-03 | Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106323700A true CN106323700A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610628196.8A Pending CN106323700A (en) | 2016-08-03 | 2016-08-03 | Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof |
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| Country | Link |
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| CN (1) | CN106323700A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455592A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Based on self-priming gas production bag and its application |
| CN113295481A (en) * | 2021-05-26 | 2021-08-24 | 湖北省生态环境监测中心站 | Malodorous gas sampling device |
| CN113514290A (en) * | 2021-09-14 | 2021-10-19 | 风云博维(深圳)科技有限公司 | Air environment monitoring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338826A (en) * | 1980-09-11 | 1982-07-13 | Air Test Labs, Inc. | Sampling apparatus |
| US4546659A (en) * | 1983-04-08 | 1985-10-15 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Atmospheric air sample collection device |
| CN102883967A (en) * | 2010-02-26 | 2013-01-16 | 耐斯特科技有限公司 | Container for fluid sampling with flexible metal alloy walls |
| CN102883960A (en) * | 2010-02-16 | 2013-01-16 | 耐斯特科技有限公司 | Containers for fluids with composite agile walls |
| US20130167667A1 (en) * | 2011-12-28 | 2013-07-04 | Nextteq Llc | Sampling Device |
| CN105067389A (en) * | 2015-08-13 | 2015-11-18 | 中国石油化工股份有限公司 | Airtight sampling bottle for gas |
-
2016
- 2016-08-03 CN CN201610628196.8A patent/CN106323700A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338826A (en) * | 1980-09-11 | 1982-07-13 | Air Test Labs, Inc. | Sampling apparatus |
| US4546659A (en) * | 1983-04-08 | 1985-10-15 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Atmospheric air sample collection device |
| CN102883960A (en) * | 2010-02-16 | 2013-01-16 | 耐斯特科技有限公司 | Containers for fluids with composite agile walls |
| CN102883967A (en) * | 2010-02-26 | 2013-01-16 | 耐斯特科技有限公司 | Container for fluid sampling with flexible metal alloy walls |
| US20130167667A1 (en) * | 2011-12-28 | 2013-07-04 | Nextteq Llc | Sampling Device |
| CN105067389A (en) * | 2015-08-13 | 2015-11-18 | 中国石油化工股份有限公司 | Airtight sampling bottle for gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455592A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | Based on self-priming gas production bag and its application |
| CN113295481A (en) * | 2021-05-26 | 2021-08-24 | 湖北省生态环境监测中心站 | Malodorous gas sampling device |
| CN113514290A (en) * | 2021-09-14 | 2021-10-19 | 风云博维(深圳)科技有限公司 | Air environment monitoring device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 200062 Shanghai city Putuo District Yunling Road No. 345 Applicant after: Shanghai Chemical Research Institute Co., Ltd. Applicant after: Shanghai Tianke Chemical Detection Co., Ltd. Address before: 200062 Shanghai city Putuo District Yunling Road No. 345 Applicant before: Shanghai Research Institute of Chemical Industry Applicant before: Shanghai Tianke Chemical Detection Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |