CN107044927A - A kind of sampling probe in coal dust workshop - Google Patents
A kind of sampling probe in coal dust workshop Download PDFInfo
- Publication number
- CN107044927A CN107044927A CN201710160145.1A CN201710160145A CN107044927A CN 107044927 A CN107044927 A CN 107044927A CN 201710160145 A CN201710160145 A CN 201710160145A CN 107044927 A CN107044927 A CN 107044927A
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- China
- Prior art keywords
- cylinder
- flange
- coal dust
- sampling probe
- air chamber
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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
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of sampling probe in coal dust workshop, including cylinder and the sampling mouth for being located at cylinder one end, cylinder is divided into front and rear two parts by the flange of a transversal setting, flange center position is provided with the first passage, flange is surrounded by some second passages, cylinder latter half is provided with air chamber, and air chamber top and bottom are equipped with valve.The advantage of the invention is that the design of air chamber and internal piston, instead of traditional air extractor and blowning installation, pumping can be realized simultaneously and two functions of blowing；All inner barrel blow before every sub-sampling and cleaned, and possessed multiple gas holes, can in time, effectively remove the residual dust inside probe；Screen pack can filter out the dust for dancing in the air larger particles in the air, it is to avoid its influence to detection process；Whole device is simple in construction, and cost is relatively low, and not using precision component, service life is longer.
Description
Technical field
The present invention relates to a kind of sampling probe, and in particular to a kind of sampling probe in coal dust workshop.
Background technology
Pulverized coal preparation workshop belongs to combustible and explosive area, although host device employs effective measures during fabrication, but by
The characteristics of ature of coal is different, the danger that system is accidentally burnt and exploded unavoidably.Wherein detonation factors mainly have the concentration of coal dust, gas
The factor such as CO contents and oxygen content and temperature severe overweight in body mixture, exists and runs into open flame source and can explode.
So detection must be periodically sampled in workshop to air, existing sampling probe in most cases, is installed in high temperature high
On process pipe wall under dust working condition, and need to work reliably and with long-term.But easily quilt of being popped one's head in when being used for a long time
Damage, and internal easily residual dust of popping one's head in, influence so is caused on sampling.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of sampling probe in coal dust workshop, and the device is effectively solved
Traditional sampling probe of having determined can not clear up the defects such as probe internal residual dust in time, and make some improvement places.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of sampling probe in coal dust workshop, including cylinder and the sampling mouth for being located at cylinder one end, the cylinder is by one
The flange of transversal setting is divided into front and rear two parts, and the flange center position is provided with the first passage, and the flange is surrounded by
Some second passages, the cylinder latter half is provided with air chamber, and the top and bottom of the air chamber are equipped with valve.
Further improvement is that, be provided with a piston in air chamber, the piston can be done in air chamber above and below piston movement,
The top land is connected with a connecting rod, and the connecting rod other end is connected to micro hydraulic cylinder.
Further improvement is that, at the first passage of the flange be provided with check valve, this check valve only allow gas from
The first half of cylinder, which is flowed to, is provided with check valve at latter half, the second passage of the flange, this check valve only allows gas
Body flows to first half from the latter half of cylinder.
Further improvement is that, the check valve includes rotating shaft, and the baffle plate and magnet being connected in rotating shaft, the gear
Plate is adsorbed on the magnet in no extraneous additional force.
Further improvement is that, the first passage of the flange is provided with screen pack close to cylinder first half office.
Further improvement is that, the mesh bore of the screen pack is 1mm.
Further improvement is that, the lower end of the cylinder latter half is also associated with acquisition port, and the acquisition port is provided with and opened
Close valve.
The beneficial effects of the invention are as follows：
1) design of air chamber and internal piston, instead of traditional air extractor and blowning installation, can simultaneously realize and take out
Gas and two functions of blowing；
2) all inner barrel blow before every sub-sampling and cleaned, and possessed multiple gas holes, energy is timely, have
Remove to effect the residual dust inside probe；
3) screen pack can filter out the dust for dancing in the air larger particles in the air, it is to avoid its influence to detection process；
4) whole device is simple in construction, and cost is relatively low, and not using precision component, service life is longer.
Brief description of the drawings
Fig. 1 is the overall schematic diagram of the present invention；
Fig. 2 is the structural representation of flange；
Fig. 3 is the structural representation of check valve；
Fig. 4 is air chamber each several part schematic diagram.
Wherein, 1- cylinders, 2- sampling mouths, 3- flanges, the passages of 4- first, the passages of 5- second, 6- air chambers, 601- valves
Door, 7- pistons, 8- connecting rods, 9- micro hydraulic cylinders, 10- check valves, 101- rotating shafts, 102- baffle plates, 103- magnets, 11- filterings
Net, 12- acquisition ports, 13- switch valves.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in Figure 1, 2, a kind of sampling probe in coal dust workshop, including cylinder 1 and the sampling mouth for being located at the one end of cylinder 1
2, cylinder 1 is front and rear two parts by 3 points of the flange of a transversal setting, and the center of flange 3 is provided with the first passage 4, flange 3 four
It is provided with some second passages 5 week, the latter half of cylinder 1 is provided with air chamber 6, and the top and bottom of air chamber 6 are equipped with valve
601.Be provided with a piston 7 in air chamber 6, piston 7 can be done in air chamber 6 above and below piston movement, the top of piston 7 is connected with one
Connecting rod 8, the other end of connecting rod 8 is connected to micro hydraulic cylinder 9.Under original state, piston 7 be in air chamber 6 top or
Lowermost end.
Check valve 10 is designed with the first passage 4 and the second passage 5 of flange 3.As shown in figure 3, check valve 10 is wrapped
Rotating shaft 101, and the baffle plate 102 and magnet 103 being connected in rotating shaft 101 are included, baffle plate 102 is adsorbed in no extraneous additional force
On the magnet 103, so to allow the first half of gas from cylinders 1 to flow to later half for 10, the check valve of the first passage 4
Part, 10, the check valve of the second passage 5 allows the latter half of gas from cylinder 1 to flow to first half.
First passage 4 of flange 3 is provided with screen pack 11, the mesh bore of screen pack 11 close to the first half office of cylinder 1
For 1mm.The lower end of the latter half of cylinder 1 is also associated with acquisition port 12, and acquisition port 12 is provided with switch valve 13.
Embodiment：
With reference to Fig. 4, under original state, piston 7 is in the top of air chamber 6, when we need sampling, opens air
The valve 601 on the top of room 6, closes the valve 601 of bottom, piston 7 is in the presence of micro hydraulic cylinder 9, in the A areas of air chamber 6
In at the uniform velocity move downward, increase the atmospheric pressure in the latter half of cylinder 1, open the second passage 5, now first
Passage 4 is still closed, and air carries out air blowing cleaning from the second outwards blowout of passage 5 to the inwall of cylinder 1；It is empty when being reached to piston 7
When the B of air chamber 6 is interval, the atmospheric pressure in the latter half of cylinder 1 does not change, and the first passage 4, the second passage 5 are closed
Close, the outside air that this time is conducive to sampling at mouth 2 recovers normal, does not flow；When piston 7 moves to air chamber 6
C it is interval, open the valve 601 of the bottom of air chamber 6, the atmospheric pressure closed in the valve 601 on top, the latter half of cylinder 1
Reduce, open the first passage 4, now the second passage 5 is still closed, outside air enters cylinder 1 by screen pack 11
Latter half, the lowermost end of air chamber 6 is moved to piston 7, and such primary air sampling is just completed.
When original state lower piston 7 is in the lowermost end of air chamber 6, it can similarly obtain.
When needing to detect gas sampled, only with the switch valve 13 for opening acquisition port 12.Controllable micro hydraulic valve 9
Work period, detection periodically is sampled to the air in coal dust workshop.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (7)
1. a kind of sampling probe in coal dust workshop, including cylinder (1) and the sampling mouth (2) for being located at cylinder (1) one end, its feature
It is：The cylinder (1) is divided into front and rear two parts by the flange (3) of a transversal setting, and flange (3) center is provided with the
One passage (4), the flange (3) is surrounded by some second passages (5), and cylinder (1) latter half is provided with air
Room (6), air chamber (6) top and bottom are equipped with valve (601).
2. a kind of sampling probe in coal dust workshop according to claim 1, it is characterised in that：In the air chamber (6)
Provided with a piston (7), the piston (7) can do in the air chamber (6) above and below piston movement, be connected with the top of the piston (7)
A piece connecting rod (8), connecting rod (8) other end is connected to micro hydraulic cylinder (9).
3. a kind of sampling probe in coal dust workshop according to claim 1, it is characterised in that：The of the flange (3)
One passage (4) place is provided with check valve (10), and it is later half that this check valve (10) only allows the first half of gas from cylinder (1) to flow to
Part, the second passage (5) place of the flange (3) is provided with check valve (10), and this check valve (10) only allows gas from cylinder
(1) latter half flows to first half.
4. a kind of sampling probe in coal dust workshop according to claim 3, it is characterised in that：Check valve (10) bag
Rotating shaft (101), and the baffle plate (102) and magnet (103) being connected in rotating shaft (101) are included, the baffle plate (102) is not outer
Absorption is on the magnet (103) during boundary's additional force.
5. a kind of sampling probe in coal dust workshop according to claim 1, it is characterised in that：The of the flange (3)
One passage (4) is provided with screen pack (11) close to cylinder (1) first half office.
6. a kind of sampling probe in coal dust workshop according to claim 5, it is characterised in that：The screen pack (11)
Mesh bore is 1mm.
7. a kind of sampling probe in coal dust workshop according to claim 1, it is characterised in that：The cylinder (1) is later half
Partial lower end is also associated with acquisition port (12), and the acquisition port (12) is provided with switch valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160145.1A CN107044927B (en) | 2017-03-17 | 2017-03-17 | Sampling probe for coal powder workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160145.1A CN107044927B (en) | 2017-03-17 | 2017-03-17 | Sampling probe for coal powder workshop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044927A true CN107044927A (en) | 2017-08-15 |
| CN107044927B CN107044927B (en) | 2023-06-13 |
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ID=59544168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710160145.1A Active CN107044927B (en) | 2017-03-17 | 2017-03-17 | Sampling probe for coal powder workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044927B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389841A (en) * | 2017-08-31 | 2017-11-24 | 国网河南省电力公司检修公司 | A kind of hermetically sealed injector of dielectric oil chromatographic analysis |
| CN113310778A (en) * | 2021-05-06 | 2021-08-27 | 安徽汽车职业技术学院 | Dynamic CO detection device for coal powder preparation |
Citations (8)
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|---|---|---|---|---|
| FR2805041A1 (en) * | 2000-02-11 | 2001-08-17 | Renault | Gas sampler for determining composition of hot and humid gas effluents expelled from factories, automobiles, gas fired boilers |
| GB2451279A (en) * | 2007-07-26 | 2009-01-28 | Siemens Vai Metals Tech Ltd | Apparatus for gas sampling comprising an inert gas atmosphere in the region of the port |
| CN201974319U (en) * | 2011-03-14 | 2011-09-14 | 中国科学院寒区旱区环境与工程研究所 | Inflator type soil profile gas collector |
| CN103115797A (en) * | 2013-02-28 | 2013-05-22 | 中国矿业大学 | Coal mine sealing and sampling device and application method thereof |
| US8904886B1 (en) * | 1996-08-22 | 2014-12-09 | A+ Manufacturing LLC | Devices for obtaining cylinder samples of natural gas or process gas and methods therefore |
| CN205015197U (en) * | 2015-08-20 | 2016-02-03 | 合肥固泰自动化有限公司 | A sampling probe for containing rotten dust -laden environment |
| WO2016206401A1 (en) * | 2015-06-26 | 2016-12-29 | 国电新能源技术研究院 | Device for detecting characteristic nature of coal on-line |
| CN206627329U (en) * | 2017-03-17 | 2017-11-10 | 合肥固泰自动化有限公司 | A kind of sampling probe in coal dust workshop |
-
2017
- 2017-03-17 CN CN201710160145.1A patent/CN107044927B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8904886B1 (en) * | 1996-08-22 | 2014-12-09 | A+ Manufacturing LLC | Devices for obtaining cylinder samples of natural gas or process gas and methods therefore |
| FR2805041A1 (en) * | 2000-02-11 | 2001-08-17 | Renault | Gas sampler for determining composition of hot and humid gas effluents expelled from factories, automobiles, gas fired boilers |
| GB2451279A (en) * | 2007-07-26 | 2009-01-28 | Siemens Vai Metals Tech Ltd | Apparatus for gas sampling comprising an inert gas atmosphere in the region of the port |
| CN201974319U (en) * | 2011-03-14 | 2011-09-14 | 中国科学院寒区旱区环境与工程研究所 | Inflator type soil profile gas collector |
| CN103115797A (en) * | 2013-02-28 | 2013-05-22 | 中国矿业大学 | Coal mine sealing and sampling device and application method thereof |
| WO2016206401A1 (en) * | 2015-06-26 | 2016-12-29 | 国电新能源技术研究院 | Device for detecting characteristic nature of coal on-line |
| CN205015197U (en) * | 2015-08-20 | 2016-02-03 | 合肥固泰自动化有限公司 | A sampling probe for containing rotten dust -laden environment |
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Non-Patent Citations (1)
| Title |
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| 刘大猛;石践;: "多头式取样枪在直吹式制粉系统中的应用" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389841A (en) * | 2017-08-31 | 2017-11-24 | 国网河南省电力公司检修公司 | A kind of hermetically sealed injector of dielectric oil chromatographic analysis |
| CN107389841B (en) * | 2017-08-31 | 2019-06-04 | 国网河南省电力公司检修公司 | A kind of hermetically sealed sample injector of dielectric oil chromatographic analysis |
| CN113310778A (en) * | 2021-05-06 | 2021-08-27 | 安徽汽车职业技术学院 | Dynamic CO detection device for coal powder preparation |
| CN113310778B (en) * | 2021-05-06 | 2022-05-17 | 安徽汽车职业技术学院 | Dynamic CO detection device for coal powder preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107044927B (en) | 2023-06-13 |
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