CN107036855B - A kind of waste gas in fixed source particulate matter sampling tube - Google Patents
A kind of waste gas in fixed source particulate matter sampling tube Download PDFInfo
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- CN107036855B CN107036855B CN201710420799.3A CN201710420799A CN107036855B CN 107036855 B CN107036855 B CN 107036855B CN 201710420799 A CN201710420799 A CN 201710420799A CN 107036855 B CN107036855 B CN 107036855B
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- component
- sampling
- particulate matter
- connecting rod
- waste gas
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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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
Abstract
The present invention relates to environmental monitoring technology fields, and in particular to a kind of waste gas in fixed source particulate matter sampling tube.It is characterized in that: including leading portion component, stepping link mechanism, back segment component, for the flue or exhaust tube being relatively large in diameter, it effectively solves the problems, such as the examples representative error for sampling different periods on section when mobile sampling at one, reduces the labor intensity of spot sampling personnel and be exposed to the time of pollution environment.
Description
Technical field
The present invention relates to environmental monitoring technology fields, and in particular to a kind of waste gas in fixed source particulate matter sampling tube.
Background technique
In environmental monitoring waste gas in fixed source Particulate Pollution object sampling process, usually by particulate matter sampling tube by thieff hatch
It protrudes into flue or exhaust tube, is placed in sampling mouth on measuring point, face air-flow is extracted certain by particulate matter isokinetic sampling's principle
The dusty gas of amount, the gas flow extracted according to the particle object amount that is trapped on sampling pipe filter cylinder and simultaneously, calculating exhaust
In particle concentration isokinetic sampling and is generallyd use due to particulate matter being unevenly distributed in flue or exhaust tube more
The method of point sampling to obtain representative aerosol sample, it is equally known that if the circular flue that is relatively large in diameter or
Exhaust tube (such as diameter is 2~4 m), measuring point number reaches 8~20, needs to collect sample point by point using the method for mobile sampling,
Since each sampled point requires to stay for some time, Measure section the problem of there have been the time differences, that is, exist sample be
The representive error problem of different periods on one sampling section, and the method for this hand sampling carrys out spot sampling personnel
It says, large labor intensity, the time in pollution environment are longer.Chinese invention patent (Patent No. CN 201020511673.0,
Patent name is particulate matter sampling tube) disclose a kind of particulate matter sampling tube, the sampling pipe include the sampling mouth being sequentially connected,
The rear end of preceding bend pipe, filter cylinder and probe tube, the preceding bend pipe is pressed from both sides equipped with a circular casing, and the filter cylinder is stainless by its periphery
Steel support and the clamping inside for scheduling a filter cylinder clamp of the circular casing；It is characterized in that, the filter cylinder clamp and the sampling
The outer wall of pipe is equipped with heating device, adjusts the temperature in the filter cylinder and the probe tube by the heating device.It can be
Long-time continuous sampling in the biggish pollution sources pipeline of humidity greatly avoids other interference component bands during particle sampling
The error come;Sampling flow velocity when the measurement of synchronous flow velocity ensure that sampling is synchronous with the actual flow velocity of flue gas in pipeline.China
(Patent No. CN 201610409501.4, patent name are a kind of Duplicate Samples for stationary source particulate matter to patent of invention
Sampling gun) disclose a kind of Duplicate Samples sampling gun for stationary source particulate matter, characterized in that including pikestaff, in pikestaff
Upper end be provided with protection pipe, protection pipe extends forward, and Pitot tube is provided with before protection pipe, and Pitot tube is connected with connecting tube
It connects, connecting tube extends to pikestaff rear end, is respectively arranged with the first sample introduction road, the second sample introduction road in the two sides of Pitot tube；First into
Sample road, the second sample introduction road are connected by the pressure pipe being arranged in supporting bracket with sampling head respectively.Sampling gun of the invention is using double
Channel design, can install two sampling heads simultaneously, opium pipe can two paths sample simultaneously, complete to adopt Duplicate Samples
Collection improves the accuracy of sampling, reduces operator, and improve the reliability of measurement result.
The prior art 1 proposes that the measurement of synchronous flow velocity and design heating device adjust the temperature in filter cylinder and probe tube to solve
The certainly accuracy problem of particulate matter spot sampling, but to the flue or exhaust tube being relatively large in diameter, still adopted without solving movement
When sample the problem of sampling the sample representativeness error of different periods on section for one.2 sampling gun of the prior art uses binary channels
Design installs two sampling heads to complete the acquisition to Duplicate Samples, substantial Environmental Protection Department " waste gas in fixed source monitoring technology rule
Model " (HJ/T397-2007) does not suggest that the acquisition requirements of Duplicate Samples, but sample size increases, and can effectively increase
A kind of method of the accuracy of sampling.But to the flue or exhaust tube being relatively large in diameter, still without solving mobile sampling when
On one sampling section the problem of the sample representativeness error of different periods.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of waste gas in fixed source particulate matter sampling tubes, special
Sign is: including leading portion component, stepping link mechanism, back segment component, the leading portion component, stepping link mechanism, back segment component according to
Secondary connection.
The back segment component includes corrugated flexible hose, stepping cylinder component.
The leading portion component includes rotor assemblies, connection block set, rotation hinge assembly, foldable cylinder component, sampling mouth, institute
Rotor assemblies, rotation hinge assembly, stepping cylinder component is stated to be sequentially connected.
The rotor assemblies include rotor blade, spring center shaft assembly, folding connecting rod component.
The connection block set includes slot cup, bearing assembly I, bearing block, and sampling mouth is fixed on bearing block.The ripple is soft
Pipe is connect with sampling mouth.
The rotation hinge assembly includes rotation articulated body, bearing assembly II.
The slot cup design has conduit, and folding connecting rod component can be slided along conduit, and foldable cylinder component on piston by connecting
The rotation hinge assembly connect pushes folding connecting rod component forward-reverse, rotation when folding connecting rod component is slided along conduit, with connection
Wing blade completes the movement opened and folded together.
Inventors have found that the rotor assemblies of sampling pipe are in flue or row as the rotor principle of windmill and helicopter
In face of air-flow in inflator, air-flow is converted into the driving moment of rotor blade to the pressure of rotor blade, and driving rotor blade rotates,
Air-flow is pierced by after rotor blade is cut, and is had lost a part of power and is formed a stable sliding stream after rotor blade
, the particulate matter that air-flow is swept along just enters in this cylindrical Stable sliding flow field through rotor blade " being stirred ", makes to flow
The dustiness of the distribution in unit volume in is more uniform, for the flue or exhaust tube being relatively large in diameter, selects rotor
Some point after leaf in cylindrical Stable sliding flow field can be represented effectively in this period of particulate matter as sampled point
Concentration of emission, so that the accuracy of detection data is improved, to effectively solve different on a sampling section when mobile sampling
The problem of sample representativeness error of period.
Inventors have found that usually particulate matter is adopted in environmental monitoring waste gas in fixed source Particulate Pollution object sampling process
Sample pipe is protruded into flue or exhaust tube by thieff hatch, is placed in sampling mouth on measuring point, face air-flow, substantial sampling pipe has needed
It is acted at two, first, being protruded into from the thieff hatch (sampling section) for being generally perpendicular to flue or exhaust tube axis；Second, sampling
On pipe sampling mouth adjustment after face airflow direction, therefore inventor devise stepping link mechanism complete it is above act, by
It is limited in the thieff hatch size that flue or exhaust tube is arranged in, when sampling pipe is protruded into or is taken out from thieff hatch, sampling pipe front and rear sections
Component is at line-styled, and sampling pipe leading portion component (sampling mouth, rotor assemblies etc.) folds, front and rear sections component Cheng Zhi when in pipe
Horn shape state makes to sample mouth face air-flow.
Inventors have found that sampling pipe size is designed smaller as far as possible, therefore borrows due to the limitation of thieff hatch aperture size
The design of folded umbrella link mechanism of having reflected is completed together with the rotor blade of connection when that is, folding connecting rod component is slided along conduit
The movement opened and folded.Simultaneously to make rotor blade around center axis rotation, couples block set and rotation hinge assembly is all provided with meter
Bearing assembly and positioning device.
Compared with the existing technology, the present invention, which at least contains, has the advantage that first, such as the rotor principle of windmill and helicopter
Generally, for the rotor assemblies of sampling pipe in face of air-flow in flue or exhaust tube, air-flow is converted into rotor to the pressure of rotor blade
The driving moment of blade, driving rotor blade rotation, air-flow is pierced by after rotor blade is cut, have lost a part of power and
As soon as forming a stable sliding flow field after rotor blade, the particulate matter that air-flow is swept along enters this through rotor blade " being stirred "
In one cylindrical Stable sliding flow field, keep the dustiness of the distribution in the unit volume in flow field more uniform, for diameter
Biggish flue or exhaust tube select some point in cylindrical Stable sliding flow field after rotor blade can as sampled point
The concentration of emission in this period of particulate matter is effectively represented, so that the accuracy of detection data is improved, to effectively solve to move
When dynamic sampling the problem of sampling the sample representativeness error of different periods on section for one；Second, reduce spot sampling personnel
Labor intensity and be exposed to pollution environment time.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of waste gas in fixed source particulate matter sampling tube of the present invention.
Fig. 2 is a kind of A full-page proof structural schematic diagram of waste gas in fixed source particulate matter sampling tube of the present invention.
Fig. 3 is a kind of B partial enlargement structural representation of waste gas in fixed source particulate matter sampling tube of the present invention.
Fig. 4 is a kind of C full-page proof structural schematic diagram of waste gas in fixed source particulate matter sampling tube of the present invention.
Fig. 5 is a kind of D full-page proof structural schematic diagram of waste gas in fixed source particulate matter sampling tube of the present invention.
Fig. 6 is a kind of E of waste gas in fixed source particulate matter sampling tube of the present invention to structural schematic diagram.
Fig. 7 is a kind of F partial enlargement structural representation of waste gas in fixed source particulate matter sampling tube of the present invention.
Fig. 8 is a kind of G of waste gas in fixed source particulate matter sampling tube of the present invention to structural schematic diagram.
1- leading portion component 2- stepping link mechanism 3- back segment component 4- corrugated flexible hose
5- rotor assemblies 6- spring center shaft assembly 7- folding connecting rod component 8- couples block set
9- samples I 12- bearing block of mouth 10- slot cup 11- bearing assembly
13- stepping cylinder component 14- foldable cylinder component 15- rotates hinge assembly
16- rotates II 18- rotor blade 19- conduit of articulated body 17- bearing assembly.
Specific embodiment
The present invention is described further with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, a kind of waste gas in fixed source particulate matter sampling tube is special
Sign is: including leading portion component 1, stepping link mechanism 2, back segment component 3, the leading portion component 1, stepping link mechanism 2, back segment group
Part 3 is sequentially connected.
The back segment component includes corrugated flexible hose 4, stepping cylinder component 13.
The leading portion component 1 includes rotor assemblies 5, connection block set 8, rotation hinge assembly 15, foldable cylinder component 7, adopts
Sample mouth 9, the rotor assemblies 5, rotation hinge assembly 15, stepping cylinder component 13 are sequentially connected.
The rotor assemblies 5 include rotor blade 18, spring center shaft assembly 6, folding connecting rod component 7.
The connection block set 8 includes slot cup 10, bearing assembly I 11, bearing block 12, and sampling mouth 9 is fixed on bearing block 12.
The corrugated flexible hose 4 is connect with sampling mouth 9.
The rotation hinge assembly 15 includes rotation articulated body 16, bearing assembly II 17.
The design of slot cup 10 has conduit 19, and folding connecting rod component 7 can be slided along conduit 19, and foldable cylinder component 14 passes through
The rotation hinge assembly 15 connected on piston pushes 7 forward-reverse of folding connecting rod component, and folding connecting rod component 7 is slided along conduit 10
When, the movement opened and folded is completed together with the rotor blade 18 of connection.
Claims (1)
1. a kind of waste gas in fixed source particulate matter sampling tube, it is characterized in that: including leading portion component, stepping link mechanism, back segment component,
Leading portion component, stepping link mechanism, back segment component are sequentially connected；Back segment component includes corrugated flexible hose, stepping cylinder component；Leading portion
Component includes rotor assemblies, connection block set, rotation hinge assembly, foldable cylinder component, sampling mouth, and rotor assemblies, rotation are hinged
Component, stepping cylinder component are sequentially connected；Rotor assemblies include rotor blade, spring center shaft assembly, folding connecting rod component；Connection
Female connector seat includes slot cup, bearing assembly I, bearing block, and sampling mouth is fixed on bearing block, and corrugated flexible hose is connect with sampling mouth, is revolved
Turning hinge connected components include rotation articulated body, bearing assembly II；The slot cup design has conduit, and folding connecting rod component can be sliding along conduit
Dynamic, foldable cylinder component pushes folding connecting rod component forward-reverse, folding connecting rod by the rotation hinge assembly connected on piston
When component is slided along conduit, the movement opened and folded is completed together with the rotor blade of connection；Cylinder after selection rotor blade
Some point in the Stable sliding flow field of shape is used as sampled point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420799.3A CN107036855B (en) | 2017-06-07 | 2017-06-07 | A kind of waste gas in fixed source particulate matter sampling tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420799.3A CN107036855B (en) | 2017-06-07 | 2017-06-07 | A kind of waste gas in fixed source particulate matter sampling tube |
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| Publication Number | Publication Date |
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| CN107036855A CN107036855A (en) | 2017-08-11 |
| CN107036855B true CN107036855B (en) | 2019-06-21 |
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| CN201710420799.3A Active CN107036855B (en) | 2017-06-07 | 2017-06-07 | A kind of waste gas in fixed source particulate matter sampling tube |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991148A (en) * | 2018-01-03 | 2018-05-04 | 南京益彩环境科技股份有限公司 | Foldable flue gas sampling device and flue system |
| CN108507840B (en) * | 2018-05-31 | 2021-05-04 | 重庆交通大学 | Unmanned aerial vehicle atmospheric biological particle collecting device and method thereof |
| CN110702472B (en) * | 2019-11-18 | 2021-12-14 | 福建省冶金工业设计院有限公司 | Flue gas sampling tube structure convenient to carry and fix |
| CN110779778B (en) * | 2019-12-09 | 2020-10-02 | 生态环境部华南环境科学研究所 | Sampling device for waste gas treatment |
| CN115165481A (en) * | 2022-07-05 | 2022-10-11 | 江苏鑫翰环境监测科技有限公司 | Sampler for average concentration of atmospheric pollution |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164021A (en) * | 1984-07-12 | 1986-03-12 | Jiskoot Autocontrol | Pipeline liquid sampling system |
| CN1813058A (en) * | 2003-06-04 | 2006-08-02 | 贝尔坦技术有限公司 | Device for collecting and separating particles and microorganisms present in ambient air |
| CN102216752A (en) * | 2008-09-12 | 2011-10-12 | 弗里亚斯科技公司 | Fluid analysis system and method for operation of an analysis system |
| CN203101129U (en) * | 2012-12-11 | 2013-07-31 | 上海海事大学 | Device for actively sampling persistent organic pollutant in microenvironment air |
| CN103877797A (en) * | 2014-03-19 | 2014-06-25 | 西安交通大学 | Gas dust-removing and sampling device |
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2017
- 2017-06-07 CN CN201710420799.3A patent/CN107036855B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164021A (en) * | 1984-07-12 | 1986-03-12 | Jiskoot Autocontrol | Pipeline liquid sampling system |
| CN1813058A (en) * | 2003-06-04 | 2006-08-02 | 贝尔坦技术有限公司 | Device for collecting and separating particles and microorganisms present in ambient air |
| CN102216752A (en) * | 2008-09-12 | 2011-10-12 | 弗里亚斯科技公司 | Fluid analysis system and method for operation of an analysis system |
| CN203101129U (en) * | 2012-12-11 | 2013-07-31 | 上海海事大学 | Device for actively sampling persistent organic pollutant in microenvironment air |
| CN103877797A (en) * | 2014-03-19 | 2014-06-25 | 西安交通大学 | Gas dust-removing and sampling device |
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| CN107036855A (en) | 2017-08-11 |
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Address after: 362000 the 2 floor of 32 new gate Street and 1916 Creative Industrial Park, Licheng District, Quanzhou, Fujian, China, 1916 Applicant after: Yang Song Address before: 362000 No. 135 Cui Hu Road, Hu tou Town, Anxi County, Fujian, Quanzhou, Fujian Applicant before: Yang Song |
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Effective date of registration: 20190517 Address after: Room 701, Block C, Dingye Baitai Biological Building, No. 10 Xinghuo Road, Jiangbei New District, Nanjing City, Jiangsu Province, 210000 Applicant after: Jiangsu Osa Environmental Detection Technology Co., Ltd. Address before: 362000 the 2 floor of 32 new gate Street and 1916 Creative Industrial Park, Licheng District, Quanzhou, Fujian, China, 1916 Applicant before: Yang Song |
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