CN201368808Y - Powder sample sampler - Google Patents

Powder sample sampler Download PDF

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Publication number
CN201368808Y
CN201368808Y CNU2008202325050U CN200820232505U CN201368808Y CN 201368808 Y CN201368808 Y CN 201368808Y CN U2008202325050 U CNU2008202325050 U CN U2008202325050U CN 200820232505 U CN200820232505 U CN 200820232505U CN 201368808 Y CN201368808 Y CN 201368808Y
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CN
China
Prior art keywords
sampling gun
sampling
dust sample
sample sampler
jet pipe
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008202325050U
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Chinese (zh)
Inventor
刘炳焕
Original Assignee
刘炳焕
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Filing date
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Application filed by 刘炳焕 filed Critical 刘炳焕
Priority to CNU2008202325050U priority Critical patent/CN201368808Y/en
Application granted granted Critical
Publication of CN201368808Y publication Critical patent/CN201368808Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a power sample sampler, which comprises a sampling gun, a driver with a guider, a vacuum unit, a cyclone separator and a dust collector connected with the cyclone separator; wherein the sampling gun is positioned at the front end of a backplate; the driver can drive the sampling gun into the flue of a waste gas-producing source; the vacuum unit is used to pump gas powder; the cyclone separator separates solid particles out of the pumped gas powder; the sampling gun is a constant-speed sampling gun, an internal static-pressure tube and an external static-pressure tube of which are connected through a constant speed measurement meter; the tail of the sampling gun is connected with the inlet of the cyclone separator; meanwhile, the cyclone separator is connected with the vacuum unit through a valve; and the vacuum unit is a vacuum generator. The power sample sampler can accurately obtain the powder sample in the gas powder flow.

Description

Dust sample sampler
(1) technical field
The utility model relates to a kind of dust sample sampler, particularly, relates to a kind of sampler of obtaining representational dust sample from gas powder two-phase air-flow, such as the dust sample sampler that is applied to the flyash stack sampling.
(2) background technology
At present, enhancing along with people's environmental consciousness, usually need the researchist can collect the data of relevant exhaust emissions from tail gas of heat engine, industrial gaseous waste or other waste gas generation sources, verifying the effect of waste gas generation source emission control technologys such as hot machine, maintenance, maintenance information that emission performance is demarcated or obtained to be correlated with.Because of the acquisition of coherent detection data will be carried out usually, therefore at first need to obtain typical representative sample in the laboratory.And because dust is with respect to easier preservation of gas and conveying, and it has also carried relevant technical information, and therefore, present sampling concentrates on the sampling of dust in the waste gas more and more.
Just at present, sampling needs sampling gun usually in gas powder stream, and the gentle powder tripping device of the vacuum suction apparatus that is connected with this sampling gun, wherein sampling gun stretches into airduct one time, the source takes place in the waste gas of just waiting to take a sample, extract the gas powder by vacuum suction apparatus then, separate by gas powder tripping device again, obtain needed dust sample then.Present dust sample sampler is set up pumping velocity at current device, sampling process approximately needs a few minutes, can obtain representative sample so in principle, but we know, no matter the source takes place in which kind of waste gas, and its gas powder flow rate degree all is unsettled, if the gentle powder flow rate degree of pumping velocity is inconsistent, in the corresponding time, can not be drawn into the gas powder of respective amount so, also just can not obtain representative sample.
(3) summary of the invention
The utility model provides a kind of dust sample sampler that can accurately obtain the dust sample in the gas powder stream at the above-mentioned defective of present dust sample sampler.
The technical solution adopted in the utility model is:
The utility model dust sample sampler, comprise the sampling gun that is positioned at its motherboard front end, drive this sampling gun and probe into interior drive unit and the guide piece thereof of waste gas generation source flue, and be used to extract the gas powder vacuum plant, extraction gas powder is isolated the cyclone separator of solid particle and connected receipts ash device, described sampling gun is isokinetic sampling's rifle, and the interior static tube of this sampling gun links to each other by a constant speed meter with outer static tube; The pipe tail of this sampling gun links to each other with described cyclone inlet, and this cyclone separator links to each other with described vacuum plant by a valve simultaneously, and this vacuum plant is a vacuum generator.
Above-mentioned dust sample sampler, straight jet pipe of the compressed air piping of described vacuum generator and described sampling gun are fixed on the same drive unit, and this jet pipe is provided with the valve of its switching of control.
Above-mentioned dust sample sampler, described sampling gun and jet pipe probe in the flue through a flange, and wherein sampling gun and jet pipe all are provided with the compression ring packoff so that the sampling state is sealed.
Above-mentioned dust sample sampler, the compressed gas source of described compression ring packoff and vacuum generator inserts by a pressurized air main line that is provided with main control valve, and this main line also is connected to a pipeline that has a special blowback stopple coupon sampling line of valve.
Above-mentioned dust sample sampler, the compressed air line of described compression ring packoff is provided with control valve.
Be fixed on the manipulation support for said sampling gun and jet pipe, said drive unit is that leading screw one end is connected the leading screw screw mechanism on this operation support.
The preferred cab over type isokinetic sample of pulverized coal of described sampling gun pipe.
Above-mentioned dust sample sampler, described flange hermetic seal is fixed on the motherboard.
The hermetic seal syndeton of described flange is for being provided with being fastenedly connected of the sealing gasket that scribbles lead oil between itself and motherboard.
The utility model has at first solved isokinetic sampling's problem, it adopts the basic utensil of isokinetic sampling's rifle as sampling, the interior static tube of this sampling gun was communicated with a constant speed meter with outer static tube and linked to each other, and observed the constant speed meter simultaneously by the vacuum tightness of adjusting vacuum plant and can obtain to stablize the isokinetic sampling.Here the isokinetic sampling refers to the pumping velocity and the flue gas powder flow rate of sampling gun, thus the sampling mode that acquisition has reference value.Simultaneously, why the utility model adopts vacuum generator, rather than vacuum pump, and reason is the source of the gas good stability of vacuum generator, obtains more stable pumping speed easily, and the easier acquisition under present industrial and mineral condition of its compressed gas source.On the other hand, when the valve of pipeline vacuum generator jet pipe, just can utilize pressurized air that sampling gun is carried out blowback, thereby just can dredge sampling gun easily.Comparatively speaking, old-fashioned sampler needs 3~5 people to operate usually, and the utility model only needs the just good complete operation of energy of a people, has saved manpower.
(4) description of drawings
Specifically illustrate scheme of the present utility model below in conjunction with Figure of description, better understand the present invention to show those skilled in the art, wherein:
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1, control valve, 2, the compression ring packoff, 3, valve, 4, vacuum generator, 5, primary branch, 6, the pressurized air main line, 7, valve, 8, drive unit, 9, leading screw, 10, receive grey device, 11, cyclone separator, 12, guide piece, 13, orienting sleeve, 14, the operation support, 15, valve, 16, sampling gun, 17, jet pipe, 18, flange.
(5) embodiment
Below specifically set forth the utility model with exemplary description, the equivalence of its technical characterictic replace and obviously mode of texturing all belong to protection domain of the present utility model.
With reference to explanation accompanying drawing 1, present embodiment dust sample sampler, comprise the sampling gun 16 that is positioned at its motherboard front end, drive this sampling gun and probe into interior drive unit and the guide piece 12 thereof of waste gas generation source flue, and be used to extract the vacuum plant of gas powder, extraction gas powder isolated the cyclone separator 11 and the grey device 10 of connected receipts of solid particle, described sampling gun is isokinetic sampling's rifle, and the interior static tube of this sampling gun links to each other by a constant speed meter with outer static tube; The pipe tail of this sampling gun links to each other with described cyclone inlet, and this cyclone separator links to each other with described vacuum plant by a valve simultaneously, and this vacuum plant is a vacuum generator 4.Here said motherboard refers to the supporting body of these device parts.For the use of little differential pressure indicator, key be its be provided to show connect the pressure reduction of two pipelines, thereby can adjust the suction force of vacuum generator, reach isokinetic sampling's purpose.
For the ease of with sampling gun and jet pipe 17 driven in synchronism, make its good integrity, straight jet pipe of the compressed air piping of this vacuum generator and sampling gun are fixed on the same drive unit 8, and this jet pipe is provided with the valve 3 of its switching of control.The purpose that valve 3 is set also can be convenient to it is closed when needs blowback stopple coupon except being convenient to the pressurized air flow velocity and the switching of control jet pipe, forms another pressurized air path.
Described sampling gun and jet pipe probe in the flue through a flange 18, be convenient to the sealing of the use of sampling gun and itself and flue, wherein sampling gun and jet pipe all are provided with compression ring packoff 2 with to the sealing of sampling state, and compression ring seals the sealing that is beneficial to movable part, effective, easy to use.
The compressed gas source of described compression ring packoff and vacuum generator inserts by a pressurized air main line 6 that is provided with main control valve, and this main line also is connected to a pipeline that has a special blowback stopple coupon sampling line of valve 7.Jet pipe inserts by compressed-air actuated primary branch 5 in addition, and just vacuum generator is that main pressurized air uses device.
The compressed air line of described compression ring packoff is provided with control valve 1,15, control compression ring sealing grade.
Described sampling gun and jet pipe are fixed on one and handle on the support, and said drive unit is that leading screw 9 one ends are connected the leading screw screw mechanism on this operation support 14, and this mechanism is convenient to manually or machinery control, uses more convenient.In addition, in view of the pipeline majority is a round tube, so adopt orienting sleeve 13 that the effect of its guiding is compared better, this orienting sleeve is fixed on the motherboard.
Described sampling gun is a cab over type isokinetic sample of pulverized coal pipe, and this stopple coupon is the best isokinetic sampling's pipe of present result of use.
Described flange hermetic seal is fixed on the motherboard, and this hermetic seal syndeton is for being provided with being fastenedly connected of the sealing gasket that scribbles lead oil between itself and motherboard.Other syndeton of hermetic seal level in fact has a variety of, comprises the various versions that add the sealing of Seal Oil matter by seal.

Claims (9)

1. dust sample sampler, comprise the sampling gun that is positioned at its motherboard front end, drive this sampling gun and probe into interior drive unit and the guide piece thereof of waste gas generation source flue, and be used to extract the gas powder vacuum plant, extraction gas powder is isolated the cyclone separator of solid particle and connected receipts ash device, it is characterized in that: described sampling gun is isokinetic sampling's rifle, and the interior static tube of this sampling gun and outer static tube connect by a minute-pressure difference epiphase; The pipe tail of this sampling gun links to each other with described cyclone inlet, and this cyclone separator links to each other with described vacuum plant by a valve simultaneously, and this vacuum plant is a vacuum generator.
2. dust sample sampler according to claim 1 is characterized in that: straight jet pipe of the compressed air piping of described vacuum generator and described sampling gun are fixed on the same drive unit, and this jet pipe is provided with the valve of its switching of control.
3. dust sample sampler according to claim 2, it is characterized in that: described sampling gun and jet pipe probe in the flue through a flange, and wherein sampling gun and jet pipe all are provided with the compression ring packoff so that the sampling state is sealed.
4. dust sample sampler according to claim 3, it is characterized in that: the compressed gas source of described compression ring packoff and vacuum generator inserts by a pressurized air main line that is provided with main control valve, and this main line also is connected to a pipeline that has a special blowback stopple coupon sampling line of valve.
5. dust sample sampler according to claim 3, it is characterized in that: the compressed air line of described compression ring packoff is provided with control valve.
6. dust sample sampler according to claim 2 is characterized in that: described sampling gun and jet pipe are fixed on one and handle on the support, and said drive unit is that leading screw one end is connected the leading screw screw mechanism on this operation support.
7. dust sample sampler according to claim 1 is characterized in that: described sampling gun is a cab over type isokinetic sample of pulverized coal pipe.
8. according to the described dust sample of one of claim 3 to 5 sampler, it is characterized in that: described flange hermetic seal is fixed on the motherboard.
9. dust sample sampler according to claim 8 is characterized in that: the hermetic seal syndeton of described flange is for being provided with being fastenedly connected of the sealing gasket that scribbles lead oil between itself and motherboard.
CNU2008202325050U 2008-12-19 2008-12-19 Powder sample sampler Expired - Fee Related CN201368808Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202325050U CN201368808Y (en) 2008-12-19 2008-12-19 Powder sample sampler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202325050U CN201368808Y (en) 2008-12-19 2008-12-19 Powder sample sampler

Publications (1)

Publication Number Publication Date
CN201368808Y true CN201368808Y (en) 2009-12-23

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813579A (en) * 2010-04-26 2010-08-25 宁夏电力公司电力科学研究院 Constant-speed sampling device of fly ash
CN104568505A (en) * 2014-12-31 2015-04-29 国家电网公司 On-site coal powder sampling device capable of realizing isokinetic sampling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813579A (en) * 2010-04-26 2010-08-25 宁夏电力公司电力科学研究院 Constant-speed sampling device of fly ash
CN104568505A (en) * 2014-12-31 2015-04-29 国家电网公司 On-site coal powder sampling device capable of realizing isokinetic sampling

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091223

Termination date: 20121219