CN108645663A - Isokinetic sample of pulverized coal device - Google Patents
Isokinetic sample of pulverized coal device Download PDFInfo
- Publication number
- CN108645663A CN108645663A CN201810438661.0A CN201810438661A CN108645663A CN 108645663 A CN108645663 A CN 108645663A CN 201810438661 A CN201810438661 A CN 201810438661A CN 108645663 A CN108645663 A CN 108645663A
- Authority
- CN
- China
- Prior art keywords
- static pressure
- isokinetic
- pulverized coal
- cyclone separator
- coal device
- Prior art date
- 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.)
- Pending
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Classifications
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1445—Overpressure, pressurisation at sampling point
- G01N2001/1463—Injector; Air-lift
Abstract
The present invention provides a kind of isokinetic sample of pulverized coal devices.Isokinetic sample of pulverized coal device includes isokinetic sampling's rifle, and isokinetic sampling's rifle includes ontology, and the first end of the ontology is provided with static pressure chamber and two static pressure holes, two static pressure holes with the static pressure chamber.Static pressure hole is arranged in isokinetic sampling's pipette tips portion while connecting static pressure chamber using two static pressure holes by the present invention, can solve the problems, such as that static pressure hole is easy to block in coal dust sampling process, improves the stability of sampler, reduces the labor intensity of operating personnel.
Description
Technical field
The present invention relates to sampler technical fields, in particular to a kind of isokinetic sample of pulverized coal device.
Background technology
China's coal-burning boiler mainly has chain furnace, fluidized-bed combustion boiler and pulverized-coal fired boiler, wherein large and medium-sized thermal power generation unit
Based on pulverized-coal fired boiler.Coal pulverizer is the highest equipment of power consumption in boiler important subsidiary engine and boiler accessory machinery.Fineness of pulverized coal is not
Coal pulverizer power consumption is only influenced, and has significant impact to safe operation of the boiler and the economy of power generation.It is accurate to obtain coal pulverizer
The coal dust sample of outlet not only contributes to the safe operation of boiler and advantageously reduces the power consumption of coal pulverizer, improves power plant
Economic benefit.Isokinetic sampling's rifle samples essential device as coal dust, has to accurately obtaining coal pulverizer outlet coal dust sample
Important role.
Traditional coal dust sampling gun static pressure hole is arranged in the windward side of air-flow, and static pressure hole plug is easy to happen in sampling process
Isokinetic sampling is caused to fail.Although traditional cyclonic separation is using cyclone segregant cascaded structure but without solving whirlwind point
From device internal gas flow short circuit problem, it is difficult to achieve the purpose that efficiently separate.In order to ensure the enough negative pressure drafts of sampler, pass through
Negative pressure ventilation source frequently with compressed air ejector pipe as probe tube.Conventional compression air ejection pipe is using injection after first throttling
Mode not only needs the noise generated in larger compressed air pressure but also throttling process seriously to damage the hearing of operating personnel
Health.
Invention content
The main purpose of the present invention is to provide a kind of isokinetic sample of pulverized coal devices, are taken with solving coal dust in the prior art
The problem of sample rifle static pressure hole is easy to happen blocking.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of isokinetic sample of pulverized coal device, including
Isokinetic sampling's rifle, isokinetic sampling's rifle includes ontology, and the first end of the ontology is provided with static pressure chamber and two static pressure holes,
Two static pressure holes with the static pressure chamber.
Further, outer static pressure connector is provided on the ontology, the static pressure chamber connects with the outer static pressure
It is connected by static pressure conduit between connector.
Further, one aperture in two static pressure holes is 3mm, another aperture is 1mm.
Further, the isokinetic sample of pulverized coal device further includes separation assembly, the separation assembly and isokinetic sampling's rifle
Connection, the separation assembly includes first order cyclone separator and second level cyclone separator.
Further, it is provided with fixed frame on the first order cyclone separator, cunning is provided on isokinetic sampling's rifle
Lever, the fixed frame are connected on the sliding bar, the outlet of the first order cyclone separator and isokinetic sampling's rifle
It is connected by silk braid.
Further, the first order cyclone separator is built-in bushing type separator, the second level cyclone separator
For the cyclone separator of window with built-in louver and rotating guide vane, the first order cyclone separator and the second level cyclone separator
Between be provided with handle.
Further, the isokinetic sample of pulverized coal device further includes compressed air injector, the compressed air injector
It is connect with the second level cyclone separator.
Further, the compressed air injector includes：Main body, is provided with entrance in the main body, the entrance with
The second level cyclone separator connection；Compressed air connecting tube, the first end of the compressed air connecting tube and the main body
Connection；Muffler, the muffler are connect with the second end of the main body.
Further, fluid channel is provided in the main body, the fluid channel includes being arranged close to the entrance
Throat and the expansion chambers being connect with the throat.
Further, the muffler includes：Shell, the shell, which encloses, to be set to form silencing cavity；Silencing cotton, the silencing cotton
It is supported in the silencing cavity by wire netting.
Apply the technical scheme of the present invention, the present invention by static pressure hole be arranged in isokinetic sampling's pipette tips portion and meanwhile using two it is quiet
It presses hole to connect static pressure chamber, can solve the problems, such as that static pressure hole is easy to block in coal dust sampling process, improves the steady of sampler
It is qualitative, reduce the labor intensity of operating personnel.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 diagrammatically illustrates the front view of the isokinetic sample of pulverized coal device of the present invention；
Fig. 2 diagrammatically illustrates the sectional view of isokinetic sampling's rifle of the present invention；
Fig. 3 diagrammatically illustrates the vertical view of the separation assembly of the present invention；
Fig. 4 diagrammatically illustrates the front view of the separation assembly of the present invention；
Fig. 5 diagrammatically illustrates the sectional view of the compressed air injector of the present invention；And
Fig. 6 diagrammatically illustrates the annexation figure of the separation assembly and isokinetic sampling's rifle of the present invention.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, isokinetic sampling's rifle；11, ontology；12, static pressure chamber；13, static pressure hole；14, static pressure conduit；15, outer static pressure connects
Connector；16, coal dust sample tap；20, first order cyclone separator；21, second level cyclone separator；22, handle；23, spiral shell is connected
It is female；30, compressed air injector；31, main body；311, entrance；312, throat；313, expansion chambers；32, compressed air connecting tube；
33, muffler；331, shell；332, silencing cotton；333, wire netting.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Those of be necessarily limited to clearly to list step or unit, but may include not listing clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Shown in Fig. 1 to Fig. 6, according to an embodiment of the invention, a kind of isokinetic sample of pulverized coal device, this implementation are provided
Isokinetic sample of pulverized coal device in example includes isokinetic sampling's rifle 10, separation assembly and compressed air injector 30.
Wherein, isokinetic sampling's rifle 10 includes ontology 11, and the first end of ontology 11 is provided with static pressure chamber 12 and two static pressure
Hole 13, two static pressure holes 13 are connected to static pressure chamber 12.It is same that static pressure hole 13 is arranged in 10 head of isokinetic sampling's rifle by the present invention
Two static pressure holes 13 of Shi Caiyong connect static pressure chamber 12, can solve static pressure hole 13 in coal dust sampling process and hold susceptible to plugging ask
Topic, improves the stability of sampler, reduces the labor intensity of operating personnel.
When practical connection, outer static pressure connector 15, static pressure chamber 12 and outer static pressure connector are provided on ontology 11
It is connected by static pressure conduit 14 between 15.
Preferably, one aperture in two static pressure holes 13 in the present embodiment is 3mm, another is 1mm, relative to
For the prior art, the larger static pressure hole 13 of use two in the present embodiment can solve static pressure hole in coal dust sampling process
13 easy the problem of blocking.
The end of isokinetic sampling's rifle in the present embodiment is opened there are two the static pressure hole 13 that diameter is respectively 3mm and 1mm, is obtained
Pulverized coal channel gas static pressure.It is a small static pressure chamber 12 after static pressure hole 13, coal dust is prevented with air for detaching coal dust
Into 14 entrance of static pressure conduit.The aperture of a diameter of 2mm is connected to static pressure conduit 14 there are one being opened on the top of static pressure chamber 12
The static pressure of end is led into outer static pressure connector 15.Coal dust sample tap 16 is opened in 10 lower part of isokinetic sampling's rifle and leans on close end position
It sets, static pressure is provided on coal dust sampling line and takes a little and the other end is led to by aperture and is drawn by connector, breeze airflow is logical
The conduit for crossing 11 middle part of ontology enters separation assembly.
Equipped with handle 22 is detachably connected on separation assembly in the present embodiment, separation assembly connects with isokinetic sampling's rifle 10
It connects, separation assembly includes first order cyclone separator 20 and second level cyclone separator 21, passes through the effect of the handle 22, convenience
First order cyclone separator 20 and second level cyclone separator 21 are linked together.Equipped with solid on first order cyclone separator 20
To determine frame (not shown), sliding bar (not shown) is provided on isokinetic sampling's rifle 10, fixed frame is connected on sliding bar,
First order cyclone separator 20 is connect with the outlet of isokinetic sampling's rifle 10 by silk braid.Separation assembly can facilitate on sliding bar
Sliding, separation assembly entrance and isokinetic sampling's rifle 10 are exported to be connected by silk braid.First order cyclone separator 20 in this way can be with
It is conveniently fixed on isokinetic sampling's rifle 10, operating personnel need not control isokinetic sampling's rifle 10, first simultaneously in sampling process
The direction of grade cyclone separator 20 and second level cyclone separator 21 need to only hold the either first order whirlwind of isokinetic sampling's rifle 10
The upper handle 22 of separator 20 and second level cyclone separator 21 can easily control the direction of isokinetic sampling's rifle 10.First
It is linked together by pipeline and attaching nut 23 between grade cyclone separator 20 and second level cyclone separator 21.
Preferably, the first order cyclone separator 20 in the present embodiment is built-in bushing type separator, second level whirlwind point
From the cyclone separator that device 21 is window with built-in louver and rotating guide vane.Breeze airflow is entered by 21 entrance of second level cyclone separator
Spiral case rotates in cyclone separator.Pulverized coal particle is thrown toward edge under the action of inertia force, is slided along wall surface
Into coal powder collection tank.Air-flow after separation then carries small part pulverized coal particle and enters spiral guide vane.Under the effect of spiral guide vane
Air-flow rotates air and is detached again with a small amount of coal dust again, and the coal dust after separation enters second level whirlwind point along shutter
The areas Zhu Xuan from device 21, the cleaned air after separation are then left by export pipeline.Built-in spiral guide vane and shutter realize coal
The secondary separation of powder air-flow, increases substantially separative efficiency, reduces fine grain escape.Built-in rotating guide vane and hundred in the present invention
The length and angle of leaf window can be designed according to practical situation, not carry out concrete restriction to it.
Compressed air injector 30 in the present embodiment is connect with second level cyclone separator 21.Specifically, compression is empty
Gas injection device 30 includes main body 31, compressed air connecting tube 32 and muffler 33.
Wherein, entrance 311 is provided in main body 31, entrance 311 is connect with second level cyclone separator 21；Compressed air connects
Take over 32, compressed air connecting tube 32 are connected to the first end of main body 31；Muffler 33 is connect with the second end of main body 31.
Preferably, fluid channel is provided in main body 31, fluid channel includes 312 He of throat being arranged close to entrance 311
The expansion chambers 313 being connect with throat 312.Muffler 33 includes shell 331 and silencing cotton 332, and shell 331, which encloses, to be set to form noise reduction
Chamber；Silencing cotton 332 is supported on by wire netting 333 in silencing cavity.
Compressed air injector 30 is as shown in figure 4, high pressure gas enters main body 31 by compressed air connecting tube 32, by injection
Gas enters main body 31 by entrance 311.Under jet entrainment effect, the two mixing in main body 31.In order to reduce by injection
Gas enters the resistance of main body 31, and fluid channel has carried out streaming design.Expansion chambers of the mixed air-flow in main body 31
313 carry out deceleration boosting, into muffler 33.33 internal layer of muffler is silencing cotton 332, is supported by internal wire netting 333,
Outside is the shell 331 of steel, and protection muffler 33 is prevented from hitting and be damaged.Shell 331 is connected to main body by way of screw thread
31 end.The size of muffler 33 can be optimized according to the flow velocity of actual airflow and the size of injector, to muffler 33
Length and the thickness of muffler 33 be not limited.
According to the above embodiments it is recognised that the end of isokinetic sampling's rifle 10 of the isokinetic sample of pulverized coal device of the present invention
There are two static pressure hole 13, the separation of coal dust and air-flow, static pressure chamber 12 may be implemented after static pressure hole 13 for a static pressure chamber 12
Top connection coal dust static pressure conduit 14, the blocking static pressure hole 13 of coal dust in sampling process can be effectively prevent.Separation assembly is
Built-in louver window construction and rotating vane cyclone separator, rotating vane structure can be such that the air-flow after separation rotates again,
It is detached with gas under inertia force effect, the secondary separation for realizing breeze airflow in the areas Zhu Xuan is entered under the guiding of shutter.The rotation
Wind separated structure effectively reduces the escape problem of fine breeze in sampling process.It can be convenient equipped with fixing bracket on separation assembly
It is fixed on isokinetic sampling's rifle, can easily be removed after the completion of sampling.There is easy-to-dismount handle in the upper end of separation assembly, just
In staff's execute-in-place.The outlet of compressed air injector 30 is equipped with muffler 33, reduces in operating process to greatest extent
Noise, protect operating personnel hearing health.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
(1) static pressure hole is arranged in isokinetic sampling's pipette tips portion while using larger static pressure hole by the present invention, can solve coal dust
In sampling process the problem of static pressure hole plug, the stability of sampler is improved, reduces the labor intensity of operating personnel.
(2) separation assembly of the invention uses built-in shutter and swirl vane structure, can effectively improve coal dust
Separative efficiency reduces the escape amount of fine powdered coal, ensures the validity of coal dust sample.
(3) separation assembly of the invention, which is connected to easily to fix and remove by sliding bar, reduces operator's
Workload；Separation assembly can not only prevent separation assembly from rotating equipped with detachable handle, but also be conducive to operating personnel's control
The position of sampling.
(4) compressed air injector of the invention increases muffler, while compressed air injector internal structure is using stream
Line style obtains the ejector capacity of bigger in smaller compressed air, and the noise reduced in the injector course of work protects operator
The hearing health of member.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of isokinetic sample of pulverized coal device, which is characterized in that including isokinetic sampling's rifle (10), isokinetic sampling's rifle (10) packet
Ontology (11) is included, the first end of the ontology (11) is provided with static pressure chamber (12) and two static pressure holes (13), and two described quiet
Pressure hole (13) is connected to the static pressure chamber (12).
2. isokinetic sample of pulverized coal device according to claim 1, which is characterized in that be provided on the ontology (11) outer quiet
Press-in connection head (15), between the static pressure chamber (12) and the outer static pressure connector (15) even by static pressure conduit (14)
It connects.
3. isokinetic sample of pulverized coal device according to claim 1, which is characterized in that one in two static pressure holes (13)
A aperture is 3mm, another aperture is 1mm.
4. isokinetic sample of pulverized coal device according to claim 1, which is characterized in that the isokinetic sample of pulverized coal device also wraps
Separation assembly is included, the separation assembly is connect with isokinetic sampling's rifle (10), and the separation assembly includes first order whirlwind point
From device (20) and second level cyclone separator (21).
5. isokinetic sample of pulverized coal device according to claim 4, which is characterized in that the first order cyclone separator (20)
On be provided with fixed frame, be provided with sliding bar on isokinetic sampling's rifle (10), the fixed frame is connected on the sliding bar,
The first order cyclone separator (20) is connect with the outlet of isokinetic sampling's rifle (10) by silk braid.
6. isokinetic sample of pulverized coal device according to claim 4, which is characterized in that the first order cyclone separator (20)
For built-in bushing type separator, the second level cyclone separator (21) is the cyclonic separation of window with built-in louver and rotating guide vane
Device is provided with handle (22) between the first order cyclone separator (20) and the second level cyclone separator (21).
7. isokinetic sample of pulverized coal device according to claim 4, which is characterized in that the isokinetic sample of pulverized coal device also wraps
Compressed air injector (30) is included, the compressed air injector (30) connect with the second level cyclone separator (21).
8. isokinetic sample of pulverized coal device according to claim 7, which is characterized in that compressed air injector (30) packet
It includes：
Main body (31) is provided with entrance (311), the entrance (311) and the second level cyclonic separation on the main body (31)
Device (21) connects；
Compressed air connecting tube (32), the compressed air connecting tube (32) are connected to the first end of the main body (31)；
Muffler (33), the muffler (33) connect with the second end of the main body (31).
9. isokinetic sample of pulverized coal device according to claim 8, which is characterized in that be provided with fluid in the main body (31)
Channel, the fluid channel include the throat (312) being arranged close to the entrance (311) and are connect with the throat (312)
Expansion chambers (313).
10. isokinetic sample of pulverized coal device according to claim 9, which is characterized in that the muffler (33) includes：
Shell (331), the shell (331), which is enclosed, to be set to form silencing cavity；
Silencing cotton (332), the silencing cotton (332) are supported on by wire netting (333) in the silencing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438661.0A CN108645663A (en) | 2018-05-09 | 2018-05-09 | Isokinetic sample of pulverized coal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438661.0A CN108645663A (en) | 2018-05-09 | 2018-05-09 | Isokinetic sample of pulverized coal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108645663A true CN108645663A (en) | 2018-10-12 |
Family
ID=63754063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438661.0A Pending CN108645663A (en) | 2018-05-09 | 2018-05-09 | Isokinetic sample of pulverized coal device |
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| CN (1) | CN108645663A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401435A (en) * | 2002-09-17 | 2003-03-12 | 山东大学 | Cyclone separator |
| CN2793717Y (en) * | 2005-05-10 | 2006-07-05 | 宋新相 | Fixed coal powdery sampler at equivalent speed |
| CN101806677A (en) * | 2010-04-26 | 2010-08-18 | 宁夏电力公司电力科学研究院 | Portable coal powder sampler |
| CN206493233U (en) * | 2016-12-31 | 2017-09-15 | 河源保利卡基塑胶科技有限公司 | A kind of filter of card base sandblasting |
| CN107664588A (en) * | 2017-11-07 | 2018-02-06 | 北京华清茵蓝科技有限公司 | Isokinetic sample of pulverized coal method and sampler |
| US9921139B1 (en) * | 2010-10-06 | 2018-03-20 | The United States Of America As Represented By The Secretary Of The Department Of The Interior | Handheld, underwater suction sampler |
-
2018
- 2018-05-09 CN CN201810438661.0A patent/CN108645663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401435A (en) * | 2002-09-17 | 2003-03-12 | 山东大学 | Cyclone separator |
| CN2793717Y (en) * | 2005-05-10 | 2006-07-05 | 宋新相 | Fixed coal powdery sampler at equivalent speed |
| CN101806677A (en) * | 2010-04-26 | 2010-08-18 | 宁夏电力公司电力科学研究院 | Portable coal powder sampler |
| US9921139B1 (en) * | 2010-10-06 | 2018-03-20 | The United States Of America As Represented By The Secretary Of The Department Of The Interior | Handheld, underwater suction sampler |
| CN206493233U (en) * | 2016-12-31 | 2017-09-15 | 河源保利卡基塑胶科技有限公司 | A kind of filter of card base sandblasting |
| CN107664588A (en) * | 2017-11-07 | 2018-02-06 | 北京华清茵蓝科技有限公司 | Isokinetic sample of pulverized coal method and sampler |
Non-Patent Citations (2)
| Title |
|---|
| 候凡军: "直吹式制粉系统固定式煤粉取样装置研究与应用", 《山东电力技术》 * |
| 张修智: "《材料科学与工程丛书 热加工技术简明手册 焊接分册》", 31 October 1997, 哈尔滨工业大学出版社 * |
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Application publication date: 20181012 |