CN105784427A - Flue gas sampling plugging ring and use method thereof - Google Patents
Flue gas sampling plugging ring and use method thereof Download PDFInfo
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- CN105784427A CN105784427A CN201410788862.5A CN201410788862A CN105784427A CN 105784427 A CN105784427 A CN 105784427A CN 201410788862 A CN201410788862 A CN 201410788862A CN 105784427 A CN105784427 A CN 105784427A
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Abstract
The invention provides a flue gas sampling plugging ring for chimney sampling holes. The plugging ring is a circle center uniformly kerved flexible material, and is arranged between a chimney sampling hole flange and a switching flange, and when sampling is carried out, a plugging cover is opened, a sampling gun is inserted to the plugging ring until the muzzle of sampling gun reaches an assigned position and starts to sample, and the outer wall of the sampling gun is tightly wrapped when the plugging ring deforms in order to reduce or prevent leakage of flue gas and flue dust from a slit between the sampling hole and the sampling gun; and in the non-sampling process, the sampling gun is pulled out, the plugging ring recovers to a flat state, and the plugging cover is arranged. The flue gas sampling plugging ring has the advantages of simple structure and simple operation, and is especially suitable for being used in online and flue gas dioxin continuous sampling devices.
Description
Technical field
The invention belongs to Analysis on Environment Contamination and monitoring field, relate generally to the continuous sampling analysis of dioxin in the sampling analysis of target contaminant, particularly flue gas and flue dust in flue and a kind of sampling closure circle that monitoring is used.
Background technology
The environmental organic pollutant of current fume emission, is mainly derived from the industrial furnace discharges etc. such as the burning of municipal refuse, danger wastes burning, thermal power plant.In order to control and reduce air pollution emission, it is necessary to these stationary sources are sampled and monitors.
In the environmental monitoring of the fixed-contamination source emission waste gas such as flue, chimney and aiutage; the sampling of particulate matter and gaseous contaminant and monitoring; existing U.S. EPA 23 method, European Union EN1948, China national environmental standard GB/T16157-1996 and China environmental protection industry standard HJ/T394-2007 etc. all adopt sampling gun that sampling muzzle is put in flue cross section the position specified; or manually mobile sampling gun is to sampled point; or be fixedly mounted on the thieff hatch on chimney, gather the sample in flue gas.Being typically in blowdown stack and be provided with special thieff hatch, thieff hatch is perpendicular on flue side the pipeline opened and with flange arrangement.Due to temperature height in flue, high humidity, containing the practical situations such as corrosive gas, sample phase and non-sampled stage, all there is certain seal request.In the non-sampled period, in order to prevent flue gas from revealing, usually couple with thieff hatch flange with end cap, thieff hatch is sealed.When sampling, open end cap, after sampling gun is reached the sampled point specified, fixed sample rifle, with special plugging device or cloth etc., the gap between thief hatch and sampling gun outer wall is blocked, to prevent flue gas from revealing from the gap between sampling gun outer wall and thieff hatch.
Summary of the invention
Technical problem solved by the invention is to provide a kind of simple in construction, encloses suitable in the flue gas sampling closure that Automatic continuous is online.
This flue gas sampling closure circle is made up of the lamellar resistant material of a kind of flexibility, and any in the middle part of material, for the center of circle, is that divergent shape uniformly has point joint-cuttings such as the center of circle along the center of circle to surrounding, and namely between arbitrary neighborhood two joint-cutting, central angle is equal；Slot length is identical, and material development length is more than slot length prolonging on any direction that the center of circle is dispersed to surrounding, and namely joint-cutting is on flaky material away from one end, the center of circle；Joint-cutting number is more than or equal to 4.
Described flue gas sampling closure circle constituent material is tolerance flue gas corrosion and the material within 150 DEG C with flexibility, for silicone rubber or fluorubber；Material thickness 2-30mm；Joint-cutting number is 4 to 60；On material outside with joint-cutting for the circle of radius, having installing hole, installing hole is identical with circle center line connecting length and point distribution such as in the center of circle, installs hole count more than or equal to 3, position of mounting hole with the use of time corresponding flange shape.
Without in external force situation, the valve cutting between flue gas sampling closure circle joint-cutting is maintained between formation state, valve cutting and contacts with each other, flue gas has certain plugging action；When sampling, sampling gun is from closure circle center traverse, and valve cutting deforms under sampling gun effect, is wrapped in around sampling gun outer wall, and the gap between thieff hatch and sampling gun outer wall is formed closure.
The using method that described flue gas sampling closure is enclosed is: closure circle coordinates the flange use being distributed corresponding shape, size with installing hole, flange is chimney thieff hatch flange and adapter flange, closure circle is arranged between chimney thieff hatch flange and adapter flange, connects fixing by nut penetrating mounting holes.
Each chimney thieff hatch can be installed 1 set or 2 and overlap above flue gas sampling closure circle and adapter flange, and when installation 2 set is above, flue gas sampling closure circle, the alternate placement of adapter flange are sequentially connected in series, fixing with the connection of long nut penetrating mounting holes.Being externally provided with at outermost a set of flue gas sampling closure circle and adapter flange can the capping of folding.
Capping is opened during sampling, sampling gun is inserted joint-cutting position in closure circle and specifies position then to start sampling in chimney until sampling muzzle arrives, closure circle deforms and is wrapped in around sampling gun outer wall, can effectively reduce or prevent flue gas and flue dust from the gap leakage between thieff hatch and sampling gun；In the non-sampled time, after being extracted by sampling gun, closure circle valve cutting (flaky material between adjacent joint-cutting is referred to as a valve cutting) recovers to formation state, loads onto capping.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of flue gas sampling closure circle of the present invention.
The use schematic diagram of flue gas sampling closure circle when Fig. 2 is sampling.
Wherein, 1 is flue；2 is flue thieff hatch mounting flange；3 be flue gas sampling closure circle, 4 be adapter flange, 5 for capping, 6 be sampling gun.
Fig. 3 is the use schematic diagram of non-sampled stage flue gas sampling closure circle.
Wherein, 1 is flue；2 is flue thieff hatch mounting flange；3 be flue gas sampling closure circle, 4 be adapter flange, 5 be capping.
Fig. 4 is the non-sampled stage, the schematic diagram that many set flue gas sampling closure circles and adapter flange series connection use.
Wherein, 1 is flue；2 is flue thieff hatch mounting flange；3 be flue gas sampling closure circle, 4 be adapter flange, 5 be capping.
Detailed description of the invention
It is below the illustration of specific implementation of the patent mode:
Embodiment 1
Taking thickness is 10 millimeters, and radius is the silicone rubber plate of 10cm, is some the center of circle, uniformly opens point joint-cuttings such as 6 centers of circle, road to surrounding in the middle part of in the of one, and slot length is 6cm；With same point for the center of circle, uniformly opening 6 installing holes on the circle that radius is 8cm, installing hole etc. divides place circumference, namely obtains coordinating the flue gas sampling closure circle of 8cm radius circular flange.By Fig. 3 structure, closure circle, adapter flange, capping are installed successively outside flue thieff hatch flange, install with nut penetrating mounting holes fixing.Embodiment 2
(1) capping is opened during sampling, sampling gun is inserted in closure circle until sampling muzzle then starts sampling in the middle part of Diameter of chimney, closure circle deforms and is wrapped in around sampling gun outer wall, can effectively reduce or prevent flue gas and flue dust from the gap leakage between thieff hatch and sampling gun；
(2), in the non-sampled stage, after being extracted by sampling gun, closure circle valve cutting recovers to formation state, loads onto capping.
Claims (8)
1. a flue gas sampling closure circle, it is characterised in that: being made up of the lamellar resistant material of a kind of flexibility, any in the middle part of material, for the center of circle, is that divergent shape uniformly has point joint-cuttings such as the center of circle along the center of circle to surrounding, and namely between arbitrary neighborhood two joint-cutting, central angle is equal；Slot length is identical, and material development length is more than slot length prolonging on any direction that the center of circle is dispersed to surrounding, and namely joint-cutting is on flaky material away from one end, the center of circle；Joint-cutting number is more than or equal to 4.
2. flue gas sampling closure circle as claimed in claim 1, it is characterised in that: its constituent material is tolerance flue gas corrosion and the material within 150 DEG C with flexibility.
3. flue gas sampling closure circle as claimed in claim 1 or 2, it is characterised in that: its constituent material is silicone rubber or fluorubber.
4. flue gas sampling closure circle as claimed in claim 1, it is characterised in that: material thickness 2-30mm；Joint-cutting number is 4 to 60；On material outside with joint-cutting for the circle of radius, having installing hole, installing hole is identical with circle center line connecting length and point distribution such as in the center of circle, installs hole count more than or equal to 3, position of mounting hole with the use of time corresponding flange shape.
5. the using method of the arbitrary described flue gas sampling closure circle of claim 1-4, it is characterized in that: closure circle coordinates the flange use being distributed corresponding shape, size with installing hole, flange is chimney thieff hatch flange and adapter flange, closure circle is arranged between chimney thieff hatch flange and adapter flange, connects fixing by nut penetrating mounting holes.
6. the using method of flue gas sampling closure circle as claimed in claim 5, it is characterized in that: each chimney thieff hatch can be installed 1 set or 2 and overlap above flue gas sampling closure circle and adapter flange, when installation 2 set is above, flue gas sampling closure circle, the alternate placement of adapter flange are sequentially connected in series, fixing with the connection of long nut penetrating mounting holes.
7. the using method of the flue gas sampling closure circle as described in claim 5 or 6, it is characterised in that: being externally provided with at outermost a set of flue gas sampling closure circle and adapter flange can the capping of folding.
8. the using method of flue gas sampling closure circle as claimed in claim 5, it is characterized in that: during sampling, sampling gun is inserted joint-cutting position in closure circle and specifies position then to start sampling in chimney until sampling muzzle arrives, closure circle deforms and is wrapped in around sampling gun outer wall, can effectively reduce or prevent flue gas and flue dust from the gap leakage between thieff hatch and sampling gun；In the non-sampled time, after being extracted by sampling gun, closure circle valve cutting (flaky material between adjacent joint-cutting is referred to as a valve cutting) recovers to formation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788862.5A CN105784427A (en) | 2014-12-16 | 2014-12-16 | Flue gas sampling plugging ring and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788862.5A CN105784427A (en) | 2014-12-16 | 2014-12-16 | Flue gas sampling plugging ring and use method thereof |
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| Publication Number | Publication Date |
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| CN105784427A true CN105784427A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410788862.5A Pending CN105784427A (en) | 2014-12-16 | 2014-12-16 | Flue gas sampling plugging ring and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036854A (en) * | 2017-05-27 | 2017-08-11 | 平安煤炭开采工程技术研究院有限责任公司 | waste gas sampling gun sealing device and waste gas sampling gun |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004219396A (en) * | 2002-11-19 | 2004-08-05 | Tatsuo Okazaki | Sampling method, method of measuring concentration, and apparatus for measuring concentration of gas dissolved in liquid phase |
| JP3673854B2 (en) * | 2001-05-11 | 2005-07-20 | 独立行政法人産業技術総合研究所 | Dust sampling device with variable aperture suction nozzle |
| CN201079631Y (en) * | 2007-10-18 | 2008-07-02 | 周泰立 | Improved one-way valve for puncturing device |
| CN202630087U (en) * | 2012-06-12 | 2012-12-26 | 上海市环境监测技术装备有限公司 | Sealing structure of flue monitoring sampling port |
| CN102988178A (en) * | 2012-11-26 | 2013-03-27 | 马新花 | Medical one-way valve rubber bottle stopper |
| CN203280783U (en) * | 2013-05-30 | 2013-11-13 | 中国人民解放军第三〇九医院 | Immersion disinfection device capable of preventing disinfectant solution from volatilization and front pipeline of suction apparatus from slippage |
| CN203881581U (en) * | 2014-03-31 | 2014-10-15 | 江西省电力设计院 | Sealing device for flue sampling and measuring hole |
-
2014
- 2014-12-16 CN CN201410788862.5A patent/CN105784427A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3673854B2 (en) * | 2001-05-11 | 2005-07-20 | 独立行政法人産業技術総合研究所 | Dust sampling device with variable aperture suction nozzle |
| JP2004219396A (en) * | 2002-11-19 | 2004-08-05 | Tatsuo Okazaki | Sampling method, method of measuring concentration, and apparatus for measuring concentration of gas dissolved in liquid phase |
| CN201079631Y (en) * | 2007-10-18 | 2008-07-02 | 周泰立 | Improved one-way valve for puncturing device |
| CN202630087U (en) * | 2012-06-12 | 2012-12-26 | 上海市环境监测技术装备有限公司 | Sealing structure of flue monitoring sampling port |
| CN102988178A (en) * | 2012-11-26 | 2013-03-27 | 马新花 | Medical one-way valve rubber bottle stopper |
| CN203280783U (en) * | 2013-05-30 | 2013-11-13 | 中国人民解放军第三〇九医院 | Immersion disinfection device capable of preventing disinfectant solution from volatilization and front pipeline of suction apparatus from slippage |
| CN203881581U (en) * | 2014-03-31 | 2014-10-15 | 江西省电力设计院 | Sealing device for flue sampling and measuring hole |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036854A (en) * | 2017-05-27 | 2017-08-11 | 平安煤炭开采工程技术研究院有限责任公司 | waste gas sampling gun sealing device and waste gas sampling gun |
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Application publication date: 20160720 |
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