CN2720423Y - Coal-powder sampling device - Google Patents
Coal-powder sampling device Download PDFInfo
- Publication number
- CN2720423Y CN2720423Y CN 200420072114 CN200420072114U CN2720423Y CN 2720423 Y CN2720423 Y CN 2720423Y CN 200420072114 CN200420072114 CN 200420072114 CN 200420072114 U CN200420072114 U CN 200420072114U CN 2720423 Y CN2720423 Y CN 2720423Y
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- coal
- powder
- sampling apparatus
- gas
- sampling
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Abstract
The utility model discloses a coal-powder sampling device, comprising a sampling gun, a separator, a suction device, a powder-collecting bottle, an electromagnetic pneumatic blow-down valve, an adjustable constant-pressure air supply and a control cabinet. One end of the sampling gun is inserted into a coal-powder gas channel, and the other end of the sampling gun is connected with the separator. The separator is respectively connected with the suction device and the powder-collecting bottle, the suction device comprises a suction tube connected with the separator, a reducing compression tube connected with the end of the suction tube and a diffusion tube connected with the coal-powder channel. The electromagnetic pneumatic blow-down valve is provided between the compression tube and the diffusion tube, and the adjustable constant-pressure air supply is a compressed air supply. The coal-powder sampling device of the utility model can automatically control the compressed air supply to blow the system, and the residual dust is cleaned for avoiding the powder block. The temperature in the separator can be kept at the predetermined temperature by a heater, and the coal-powder concretion and block are effectively prevented. Simultaneously, the speed of the coal-powder into the sampling gun is changed byadjusting the pressure of the adjustable constant-pressure device to achieve the isokinetic sampling.
Description
[technical field]
The utility model is about a kind of gas-solid two-phase sampling device, refers to a kind of coal fines sampling apparatus especially.
[background technology]
The coal dust sampling is one of indispensable work in the day-to-day operation of fuel-burning power plant.Sample analysis both can be the boiler combustion adjustment feasible foundation was provided timely and accurately, also can be the economical operation analysis simultaneously science data are provided, thereby improve the performance driving economy of power plant greatly.
Yet for a long time, power plant all is difficult to the real time sample of realization to coal dust.At present, sampling mode commonly used comprises portable sampling and fixed sampling, yet the movable type not only complexity but also time-consuming of taking a sample generally only just adopts at the trial, in the production run of reality, is difficult to realize; Fixed sampling then never has the sampler of mature and feasible, and is unstable in the course of work, and problems such as stifled powder, caking obstruction very easily take place in the device, and feasible sampling is difficult to guarantee stable and reliable.
[utility model content]
For solving the problem of above-mentioned existence of the prior art, the utility model provides a kind of coal fines sampling apparatus, and it can prevent effectively that stifled powder, caking stop up in the locking apparatus, and stable, sampling result is accurately reliable.
For achieving the above object, the utility model provides a kind of coal fines sampling apparatus, and it comprises sampling gun, separation vessel, getter device, collection powder bottle, electromagnetic pneumatic blow down valve, adjustable constant voltage source of the gas and switch board.Wherein, an end of this sampling gun is inserted in the coal dust gas passage, and its other end links to each other with separation vessel; This separation vessel also is connected with getter device and collection powder bottle respectively; This getter device comprises air intake duct, a convergent shape compressed pipe that is connected in the air intake duct end that directly links to each other with separation vessel and is connected in anemostat on the coal dust passage, and be equiped with this electromagnetic pneumatic blow down valve between this compressed pipe and anemostat; This is adjustable, and the constant voltage source of the gas is the compressed air source that is connected in this compressed pipe.
Further be provided with a well heater that is used for preventing the coal dust caking by a Single-chip Controlling in this separation vessel.
Owing to adopt technique scheme, the utility model coal fines sampling apparatus has following beneficial effect: this coal fines sampling apparatus, can utilize pressurized air to gather the powder sample continuously automatically by the negative pressure that getter device forms, and can control compressed air source automatically by single-chip microcomputer purges total system, remove residual dust, and avoided stifled powder; And well heater can remain on predetermined temperature with the temperature in the separation vessel, guarantees that coal dust does not lump, and prevented that effectively the coal dust caking from stopping up, and guaranteed the reliable and stable of coal fines sampling apparatus operation.By adjusting adjustable pressurestat pressure, can change the speed that coal dust enters sampling gun simultaneously, make it reach the isokinetic sampling.
[description of drawings]
Fig. 1 is the synoptic diagram of the utility model coal fines sampling apparatus.
[embodiment]
As shown in Figure 1, the utility model coal fines sampling apparatus is used in and carries out the coal dust sampling in the coal dust gas passage, and it comprises sampling gun 1, separation vessel 2, getter device 3, collection powder bottle 4, electromagnetic pneumatic blow down valve 5, adjustable constant voltage source of the gas 6 and switch board (scheming not shown).
Wherein, an end of this sampling gun 1 is inserted in the coal dust gas passage 9, and an end links to each other with this separation vessel 2.For avoiding coal dust to leak, be connected by valve is blue between this sampling gun 1 and the coal dust gas passage 9.In addition, because breeze airflow speed is high, coal powder density is big, big to the erosion corrosion of sampling gun 1.For this reason, the sampling gun 1 in the utility model adopts sleeve type structure, and outer tube adopts the abrasion-proof stainless steel manufacturing, and does energetic ion on the surface and annotate carburized tungsten Wear-resistant Treatment, makes improve greatly the serviceable life of sampling gun 1.
This separation vessel 2 also is connected with getter device 3 and collection powder bottle 4 respectively.In this separation vessel 2, can further be provided with a well heater 21 that prevents the coal dust dewfall.
This getter device 3 comprises air intake duct 31, a convergent shape compressed pipe 32 that is connected in air intake duct 31 ends that directly links to each other with separation vessel 2 and is connected in anemostat 33 on the coal dust passage 9.And between this compressed pipe 32 and anemostat 33, also be equiped with this electromagnetic pneumatic blow down valve 5.
This collection powder bottle 4 links to each other with separation vessel 2 by rapid-acting coupling 41 and quick-opening valve 42.For preventing to collect in the powder bottle system failure that full powder brings, coal fines sampling apparatus of the present utility model has also designed a certain amount of self-locking cover half piece, when the coal dust in the collection powder bottle 4 be accumulated to a certain amount of after, system stops with regard to automatically locking taking a sample.
This is adjustable, and constant voltage source of the gas 6 is connected in this compressed pipe 32, in the utility model, employing be compressed air source.This compressed air source comprises compressed air supply system (scheming not shown), the adjustable pressurestat 62 that links to each other with this compressed air supply system, it is terminal and extend into nozzle 64 in this compressed pipe 32 to be connected in the electromagnetism-gas-driving valve 63 of these adjustable pressurestat 62 ends and to be connected in this electromagnetism-gas-driving valve 63.Wherein, this compressed air supply system can be gas-holder form or compressed air generator.
Comprise a single-chip microcomputer, a display screen, control button in this switch board.Electromagnetic pneumatic blow down valve 5 in the utility model, electromagnetism-gas-driving valve 63 and well heater 21 are controlled automatically by a single-chip microcomputer (scheming not shown) that is located in this switch board.
In the utility model coal fines sampling apparatus course of work, under Single-chip Controlling, have program control purging function and automatic heating function and avoid coal dust caking and obstruction in the system.
When the work initialization, the quick-opening valve 42 in the electromagnetic pneumatic blow down valve 5 between compressed pipe 32 and the anemostat 33, the adjustable constant voltage source of the gas 6 between electromagnetism-gas-driving valve 63 and collection powder bottle 4 and the separation vessel 2 all is in closed condition; Afterwards, the electromagnetism-gas-driving valve 63 in the adjustable constant voltage source of the gas 6 is opened, and pressurized air purges system, purges intrasystem residual dust clean; Then, opening electromagnetic pneumatic blow down valve 5, electromagnetism-gas-driving valve 63 in the adjustable constant voltage source of the gas 6 between compressed pipe 32 and the anemostat 33 and the quick-opening valve 42 that collects between powder bottle 4 and the separation vessel 2 simultaneously takes a sample; After the sampling, electromagnetic pneumatic blow down valve 5 between the occlusion pressure draw 32 and the anemostat 33, and open quick-opening valve 42 between electromagnetism-gas-driving valve 63 in the adjustable constant voltage source of the gas 6 and collection powder bottle 4 and the separation vessel, system is purged once more the residual dust in the scavenge system pipeline by pressurized air.In whole sampling process, the pattern of purging → sampling → purging circulates all the time and carries out, and has effectively avoided stifled powder problem, and its cycling time at interval can be by single-chip microcomputer adjustment and control.
Simultaneously, for the coal dust agglomeration problems that prevents to bring when moisture is too high under the cold climate or in coal dust, under the control of single-chip microcomputer, well heater 21 heats automatically, and the temperature in the separation vessel 2 are remained on predefined temperature, has guaranteed that the coal dust drying do not lump.Thereby can prevent effectively that the coal dust caking of taking a sample from stopping up.
Like this, the utility model coal fines sampling apparatus can utilize pressurized air to gather the powder sample continuously automatically by the negative pressure that getter device forms, and can control compressed air source automatically by single-chip microcomputer total system is purged, and removes residual dust, and has avoided stifled powder; And well heater can remain on predetermined temperature with the temperature in the separation vessel, guarantees that coal dust does not lump, and prevented that effectively the coal dust caking from stopping up, and guaranteed the reliable and stable of coal fines sampling apparatus operation.
Claims (9)
1, a kind of coal fines sampling apparatus, be used in coal dust gas passage, taking a sample, it comprises sampling gun, separation vessel, getter device, the collection powder bottle, the electromagnetic pneumatic blow down valve, adjustable constant voltage source of the gas and switch board, one end of this sampling gun is inserted in the coal dust gas passage, the other end links to each other with separation vessel, this separation vessel also is connected with getter device and collection powder bottle respectively, it is characterized in that: this getter device comprises an air intake duct that directly links to each other with separation vessel, be connected in the convergent shape compressed pipe of air intake duct end and be connected in anemostat on the coal dust passage, and between this compressed pipe and anemostat, be equiped with this electromagnetic pneumatic blow down valve; This is adjustable, and the constant voltage source of the gas is the compressed air source that is connected in this compressed pipe.
2, coal fines sampling apparatus as claimed in claim 1 is characterized in that: this switch board comprises a single-chip microcomputer, a display screen, control button.
3, coal fines sampling apparatus as claimed in claim 2 is characterized in that: further be provided with one and be used for preventing the well heater of coal dust caking by this Single-chip Controlling in this separation vessel.
4, coal fines sampling apparatus as claimed in claim 2 is characterized in that: this compressed air source comprises compressed air supply system, the adjustable pressurestat that links to each other with this compressed air supply system, it is terminal and by this monolithic processor controlled electromagnetism-gas-driving valve and to be connected in this electromagnetism-gas-driving valve terminal and stretch into nozzle in this compressed pipe to be connected in this adjustable pressurestat.
5, coal fines sampling apparatus as claimed in claim 4 is characterized in that: this compressed air supply system is gas-holder or compressed air generator.
6, coal fines sampling apparatus as claimed in claim 1 is characterized in that: this collection powder bottle links to each other with separation vessel by quick-opening valve and rapid-acting coupling.
7, coal fines sampling apparatus as claimed in claim 1 is characterized in that: this sampling gun is a sleeve type structure, and its outer tube carries out the wear-resisting abrasion-proof stainless steel of energetic ion notes carburized tungsten by the surface and makes.
8, coal fines sampling apparatus as claimed in claim 1 is characterized in that: be connected by valve is blue between this sampling gun and the coal dust gas passage.
9, coal fines sampling apparatus as claimed in claim 2 is characterized in that: it further comprises one by Single-chip Controlling, coal dust is accumulated to the quantitative self-locking cover half piece that automatically locks when a certain amount of and stop to take a sample in the collection powder bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072114 CN2720423Y (en) | 2004-07-27 | 2004-07-27 | Coal-powder sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072114 CN2720423Y (en) | 2004-07-27 | 2004-07-27 | Coal-powder sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720423Y true CN2720423Y (en) | 2005-08-24 |
Family
ID=35009382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072114 Expired - Fee Related CN2720423Y (en) | 2004-07-27 | 2004-07-27 | Coal-powder sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720423Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104020011A (en) * | 2014-06-19 | 2014-09-03 | 广西南宁双阳科技有限公司 | Automatic sampling mechanism of packing scale |
| CN105836487A (en) * | 2016-04-21 | 2016-08-10 | 扬州大学 | Immersed type spiral feeder for trace amount of fine powder |
| CN106629068A (en) * | 2016-11-21 | 2017-05-10 | 中国核电工程有限公司 | Aerosol distribution device |
| CN110354712A (en) * | 2019-08-15 | 2019-10-22 | 山东中谷饲料有限公司 | A kind of vitamin premixing feed stirring system |
-
2004
- 2004-07-27 CN CN 200420072114 patent/CN2720423Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104020011A (en) * | 2014-06-19 | 2014-09-03 | 广西南宁双阳科技有限公司 | Automatic sampling mechanism of packing scale |
| CN105836487A (en) * | 2016-04-21 | 2016-08-10 | 扬州大学 | Immersed type spiral feeder for trace amount of fine powder |
| CN106629068A (en) * | 2016-11-21 | 2017-05-10 | 中国核电工程有限公司 | Aerosol distribution device |
| CN110354712A (en) * | 2019-08-15 | 2019-10-22 | 山东中谷饲料有限公司 | A kind of vitamin premixing feed stirring system |
| CN110354712B (en) * | 2019-08-15 | 2021-08-24 | 山东中谷饲料有限公司 | Vitamin is feed mixing system in advance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |