CN109870328A - A kind of oil smoke sampling device - Google Patents
A kind of oil smoke sampling device Download PDFInfo
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- CN109870328A CN109870328A CN201910202552.3A CN201910202552A CN109870328A CN 109870328 A CN109870328 A CN 109870328A CN 201910202552 A CN201910202552 A CN 201910202552A CN 109870328 A CN109870328 A CN 109870328A
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- sampling
- tube body
- oil smoke
- ozzle
- guan
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- 238000005070 sampling Methods 0.000 title claims abstract description 119
- 239000000779 smoke Substances 0.000 title claims abstract description 49
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 230000005923 long-lasting effect Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 25
- 239000007789 gas Substances 0.000 description 16
- 239000013618 particulate matter Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000003517 fume Substances 0.000 description 8
- 239000010419 fine particle Substances 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 6
- 230000003189 isokinetic effect Effects 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000082 states acquisition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to sampling apparatus technical field, in particular a kind of oil smoke sampling device of partial size cutting function, including sampling pipe main body, the sampling pipe main body include ozzle, tube body, Guan Ji；The tube body side offers ozzle, and the tube body is fixedly connected with Guan Ji far from the side of the ozzle；The sampling pipe main body is fixedly connected by Guan Jiyu connection pedestal；Oil smoke sampling device uses straight tube body, and structure is simple, eliminates the pressure sensor in complicated accessory structure；Simple installation, installation site do not have particular/special requirement, it is only necessary to find the position being adapted to fit；Without separately installed, only detection device cooperated disposably to install, do not contacted with sampling conduit；It can sample gas circuit without cleaning long lasting for sampling and not block；Sampling gun entirety vapour lock regulation is very low: vapour lock regulation is not more than 1% within the entire cleaning frequency.
Description
Technical field
The invention belongs to sampling apparatus technical fields, and in particular to a kind of oil smoke sampling device.
Background technique
Sampling is exactly that a part of representative substance is extracted from the bulk material for the quality of being determined, is somebody's turn to do with examining
It criticizes the quality of substance or determines the property of this batch of substance, sampling is the key that correct development quality evaluation, and is obtained reliable
Analyze the important link of result.State existing for material is different, and the method for sampling is also not quite similar, sampling apparatus be also it is each not
Identical, one of which is exactly to sample to oil smoke, also referred to as oil smoke sampling device.
In order to ensure the sample of acquisition has representativeness, particle sampling generallys use isokinetic sampling's method in gas in pipelines
It is sampled, i.e., thief hatch is directed at gas to the gas velocity for keeping thief hatch to be pumped by adjusting sampling pump working condition
It is equal with fluids within pipes speed.Particulate matter measurement takes with the gaseous pollutant method of sampling in the exhaust of fixed-contamination object at present
The structure (as shown in Figure 1) and sampling mode of sample pipe continue to use required execution in GB-16157.However, existing technology exists
Following problems: structure is complicated for sampling pipe, and production technology is complicated；It locates preferably selected in vertical section, sampling location
It should be arranged in away from elbow, valve, reducer pipe downstream direction not less than 6 times of diameters and away from above-mentioned component updrift side not less than 3 times
At diameter, however all there is operational difficulty in such sampling apparatus in production technology, mounting process, and such adopt
Sampling device must also carry out special designing to entrance, or install constant speed measurement device additional, to reach the constant speed item of requirement defined
It is sampled under part, sampling is more troublesome, time-consuming and laborious.
Recently as the promotion that Chinese environmental protection requires, also come stringenter to the limitation of oil smoke of catering industry discharge, oil smoke exists
The research and development and application gradually industrialization of line monitoring device, but oil smoke Air Pollutants --- oil smoke fine particle is adopted
Sample has still continued to use traditional isokinetic sampling's method equipment, and such equipment very bulky, cost is high, not can be used directly in
Oil smoke on-line monitoring equipment, therefore produce cheap to small and flexible and can accurately reflect smoke particle object level of pollution
The demand of oil smoke sampling device.
Summary of the invention
To solve the problems mentioned above in the background art.The present invention provides a kind of oil smoke sampling devices, have structure
Simply, simple to install, convenient for sampling the features such as.
To achieve the above object, the invention provides the following technical scheme:
A kind of oil smoke sampling device, including sampling pipe main body, the sampling pipe main body include ozzle, tube body, Guan Ji；It is described
Tube body side offers ozzle, and the tube body is fixedly connected with Guan Ji far from the side of the ozzle；The sampling pipe main body is logical
Guan Jiyu connection pedestal is crossed to be fixedly connected.
Preferably, the tube body is straight, and the sampling channel of the tube body is cylindrical shape.
Preferably, the length of the tube body is L, and the sampling channel diameter of tube body is d, in which:
In formula: L---- sampling gun length (m), Q---- sample throughput (m3/ h), d---- sampling gun internal diameter (m), π ----
Pi.
Preferably, the diameter of the ozzle inner part sampling channel is more than or equal to the sampling channel diameter of the tube body.
It is highly preferred that the diameter of sampling channel of the ozzle at the tube body is more than or equal to the sampling of the tube body
Channel diameter.
Preferably, the junction of the tube body and the Guan Ji are equipped with adjusting face, and the adjusting face is fixed with the tube body
Connection.
Preferably, the outer surface in the adjusting face, which has, adjusts screw thread, and the adjusting face can pass through the adjusting screw thread
It carries out rotation and changes sampling channel length.
Preferably, the connection pedestal is the cylindrical shape of inner hollow.
Preferably, the sampling pipe main body is connect by connecting pedestal with sampling cutter.
Preferably, the particulate matter cut point of the sampling cutter is between 0.5 μm to 10 μm.
Compared with prior art, the beneficial effects of the present invention are:
1. oil smoke sampling device uses straight tube body, structure is simple, eliminates the pressure sensor in complicated accessory structure,
Without the pressure value before and after sampling apparatus to determine whether the effect in constant speed sample states acquisition oil smoke sample in detection process
Fruit is consistent with sampling gun result described in standard GB-16157, even more excellent；
2. installation site does not have particular/special requirement, it is only necessary to find the position being adapted to fit；Simple installation, without independent
Installation only cooperates detection device disposably to install, does not contact with sampling conduit；
3. can be long lasting for sampling: at least 168 hours, typical case continues 2000 hours or more to sample without cleaning
Mouth does not block；Sampling gun entirety vapour lock regulation is very low: vapour lock regulation is not more than 1% within the entire cleaning frequency.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.
In the accompanying drawings:
Fig. 1 is the structure of particulate matter measurement and the probe tube of the gaseous pollutant method of sampling in the exhaust of existing fixed-contamination object
Schematic diagram；
Fig. 2 is the structural schematic diagram of the probe tube in the present invention；
Fig. 3 is the structural schematic diagram of the probe tube in the present invention with sampling cutter；
Fig. 4 is the result schematic diagram of the ozzle in the present invention；
In figure: 1, sampling pipe main body；11, ozzle；12, tube body；13, Guan Ji；14, face is adjusted；2, pedestal is connected；3, it samples
Cutter.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 2-4, the present invention the following technical schemes are provided:
A kind of oil smoke sampling device, including sampling pipe main body 1, it is characterised in that: the sampling pipe main body 1 includes ozzle
11, tube body 12, Guan Ji 13；12 side of tube body offers ozzle 11, and side of the tube body 12 far from the ozzle 11 is solid
Surely it is connected with pipe base 13；The sampling pipe main body 1 is fixedly connected by pipe base 13 with pedestal 2 is connect.
In the present embodiment: when sampling to oil smoke, tube body 12 being inserted into suitable sampling location, installation site does not have
There is particular/special requirement, it is only necessary to find the position being adapted to fit.Sampling apparatus is horizontally installed in flue, in ozzle and flue
In vertical state, acquisition rifle (device) ozzle installation condition required by the installation condition national standard is horizontal to airflow direction
State, ozzle (acquisition port) object gas flow direction state are entirely different.The sample gas of the present embodiment device is by bearing in sampling pipe
Pressure sucks sampling pipe out of flue, once sample gas sucks sampling pipe out of flue, air-flow under the action of negative pressure in sampling pipe
Enter detection device in constant speed state.
Since pollutants from cooking fume mainly includes the submillimeter generated by mechanical dispersion (the miniature explosion of oil mixing with water containing high temperature)
The Asia that particulate matter (quantity partial size spectrum peak is in 100 μm of orders of magnitude), grease volatilization cohesion are generated with the cohesion of imperfect combustion product
Four classes such as the inorganic matter that micron particles object (quantity partial size spectrum peak is in the 10nm order of magnitude), volatile organic matter, burning generate.Its
The Submicron Particles that middle cohesion generates belong to airborne fine particulate matter scope, are typical PM2.5Pollutant is oil smoke plume
Producing reason, secondary volatility product are also one of the main source of oil smoke smell, therefore are the main of fume pollution detection
The most important pointer of object and fume pollution degree, oil smoke on-site test and oil smoke on-line monitoring are exactly mainly to detect oil smoke
The concentration of fine particle.As previously mentioned, the sampling of oil smoke fine particle still uses isokinetic sampling's method at this stage, scene can not be real
When directly acquire the sample of oil smoke fine particle.The research of main research staff's long campaigns pollutants from cooking fume of the invention is
First, the whole world is related to one of the author of the full Size of kitchen fumes (nanometer to millimeter) analysis paper, by kitchen fumes
Comprehensive analysis of Size Distribution and ingenious application, make the present invention.Its principle is: kitchen fumes particulate matter comes from and two
Entirely different the way of production causes smoke particle object integrated distribution near another median particle diameter, the particulate matter of condensed state
Partial size is substantially focused on 100nm hereinafter, the smoke particle object that mechanical dispersion generates is substantially focused on 10 μm or more, the two it
Between substantially blank.When aerodynamic size is less than 5 μm, the behavior of particulate matter tends to air gaseous material feature, empty
When aerodynamics partial size is less than 0.5 μm or less, aerodynamic size concept is generally no longer used, Stokes grain is generallyd use
Diameter concept is less than partial size the oil smoke fine particle of 100nm, without the thin of object gas flow direction needed for configuring isokinetic sampling
Wall isokinetic sampling mouth also can be realized accurate sampling, be based on previous reasons, realize oil using oil smoke sampling device structure of the present invention
The accurate sampling of cigarette fine particle.
Sample gas enters from thief hatch until entering equipment, this distance because sampling pipe presence, big in sample gas
Grain object because gravity can natural subsidence in pipe, it is remaining can not Deposited particulate matter be that detection device is to be detected
Particulate matter, so that sampling pipe plays the role of divider.
Specifically, the tube body 12 is straight, the sampling channel of the tube body 12 is cylindrical shape.It is adopted compared with as defined in standard
Sample form of tubes, there is that the processing is simple, feature easy for installation.
Specifically, the length of the tube body 12 is L, the sampling channel diameter of the tube body 12 is d, in which:
In formula: L---- sampling gun length (m), Q---- sample throughput (m3/ h), d---- sampling gun internal diameter (m), π ----
Pi.
Due to the length long enough of tube body 12, so benefit can be generated when flowing in the sample gas material tube body 12 of extraction
The under test gas at the uniform velocity flowed is formed with negative pressure, forms the gas to be measured at the uniform velocity flowed using negative pressure in sufficiently long tube body 12
Body can save the pressure sensor in complicated accessory structure, judge in detection process without the pressure value before and after sampling gun
Whether constant speed sample states are in, it is easy to operate, it is time saving and energy saving convenient for being sampled to oil smoke.
Specifically, the junction of tube body 12 and pipe base 13 is equipped with adjusting face 14, adjusting face 14 is fixedly connected with tube body 12；It is logical
The length of tube body 12 can be lengthened when adjusting face 14 are unfolded equipped with adjusting face 14 in the junction of tube body 12 and pipe base 13 by crossing,
The length long enough for making tube body 12, is consequently formed faster air pressure.Meanwhile adapting to the flue requirement of different-diameter.
Specifically, the ozzle 11 of tube body 12 is smaller and smaller from outside to inside, Fig. 4 (a)；The ozzle 11 of tube body 12 is got over from outside to inside
Next smaller, using the principle of Venturi tube, the ozzle 11 of tube body 12 can accelerate the speed drawn when drawing oil smoke, reinforce sampling
Efficiency.
Specifically, connection pedestal 2 is the cylindrical shape of inner hollow；It is the circle of inner hollow by setting connection pedestal 2
Bar shape, the oil smoke that tube body 12 can be enable to extract is by connecting pedestal 2.
Specifically, the outer surface for adjusting face 14, which has, adjusts screw thread, and adjusting face 14 can be rotated by adjusting screw thread；
Outer surface by the way that adjusting face 14 is arranged, which has, adjusts screw thread, and adjusting face 14 is made length can be adjusted by adjusting screw thread, can
It is rotated with exchanging nodal section 14, changes the volume of 14 inner passage of adjusting face.
Specifically, the sampling channel that the diameter of the 11 inner part sampling channel of ozzle is less than or equal to the tube body 12 is straight
Diameter is schemed (b, c, d, e, f)；More specifically, the diameter of the sampling channel at the nearly tube body 12 of the ozzle 11 is less than or equal to institute
State the sampling channel diameter figure (d, e, f) of tube body 12；Sample gas speed after 11 sampling channel of ozzle reaches 12 sampling channel of tube body
Reduce, be conducive to large particle in sample gas under the effect of gravity natural subsidence in pipe.
Specifically, the sampling pipe main body 1 is connect by connecting pedestal 2 with sampling cutter 3；The sampling cutter 3
Particulate matter cut point between 0.5 μm to 10 μm.The characteristics of due to pollutants from cooking fume, if you need to by two class particulate matter of oil smoke into
Row cutting, cut point selection any point between 100nm and 10 μm, cutting effect substantially indifference, therefore to cutter
Matched air pump constant speed feature restriction just significantly relaxes --- and within the scope of the extremely wide speed of exhaust, cutter can be acquired
To true oil smoke fine particle sample.
The working principle of the invention and process for using: when carrying out oil smoke sampling, tube body 12 is inserted into the position being adapted to fit
It sets, pipe base 13 can be connect by connection pedestal 2 with sampling cutter 3, and tube body 12 can be fixed on sampling pipe master by connection pedestal 2
On body 1, adjusting face 14 is stretched, the length of tube body 12 is adjusted, oil smoke is sampled, the sample gas of extraction enters sampling pipe main body 1
Interior, for the bulky grain in oil smoke by being deposited in tube body 12, the sampled cutter 3 of sample gas enters detection device.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of oil smoke sampling device, including sampling pipe main body (1), it is characterised in that: the sampling pipe main body (1) includes ozzle
(11), tube body (12), Guan Ji (13)；Tube body (12) side offers ozzle (11), and the tube body (12) is far from the pipe
The side of mouth (11) is fixedly connected with Guan Ji (13)；The sampling pipe main body (1) is fixed by Guan Ji (13) with pedestal (2) are connect
Connection.
2. a kind of oil smoke sampling device according to claim 1, it is characterised in that: the tube body (12) is straight, described
The sampling channel of tube body (12) is cylindrical shape.
3. a kind of oil smoke sampling device according to claim 1, it is characterised in that: the length of the tube body (12) is L, pipe
The sampling channel diameter of body (12) is d, wherein
In formula: L---- sampling gun length (m), Q---- sample throughput (m3/ h), d---- sampling gun internal diameter (m), π ----circumference
Rate.
4. a kind of oil smoke sampling device according to claim 1, it is characterised in that: ozzle (11) the internal sample channel
Diameter be more than or equal to the tube body (12) sampling channel diameter.
5. a kind of oil smoke sampling device according to claim 1, it is characterised in that: the ozzle (11) is close to the tube body
(12) diameter of the sampling channel at is more than or equal to the sampling channel diameter of the tube body (12).
6. a kind of oil smoke sampling device according to claim 1, it is characterised in that: the tube body (12) and the Guan Ji
(13) junction is equipped with adjusting face (14), and the adjusting face (14) is fixedly connected with the Guan Ji (13).
7. a kind of oil smoke sampling device according to claim 6, it is characterised in that: the appearance mask of the adjusting face (14)
There is adjusting screw thread, and length can be adjusted by the adjusting screw thread in the adjusting face (14).
8. a kind of oil smoke sampling device according to claim 1, it is characterised in that: the connection pedestal (2) is in inside
Empty cylindrical shape.
9. a kind of oil smoke sampling device described in -8 according to claim 1, it is characterised in that: the sampling pipe main body (1) passes through
Connection pedestal (2) is connect with sampling cutter (3).
10. a kind of oil smoke sampling device according to claim 9, it is characterised in that: the particle of the sampling cutter (3)
Object cut point is between 0.5 μm to 10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202552.3A CN109870328A (en) | 2019-03-11 | 2019-03-11 | A kind of oil smoke sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202552.3A CN109870328A (en) | 2019-03-11 | 2019-03-11 | A kind of oil smoke sampling device |
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| Publication Number | Publication Date |
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| CN109870328A true CN109870328A (en) | 2019-06-11 |
Family
ID=66920759
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| CN201910202552.3A Pending CN109870328A (en) | 2019-03-11 | 2019-03-11 | A kind of oil smoke sampling device |
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|---|---|---|---|---|
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