CN2296998Y - Fixed coal powder sampler - Google Patents
Fixed coal powder sampler Download PDFInfo
- Publication number
- CN2296998Y CN2296998Y CN 97239483 CN97239483U CN2296998Y CN 2296998 Y CN2296998 Y CN 2296998Y CN 97239483 CN97239483 CN 97239483 CN 97239483 U CN97239483 U CN 97239483U CN 2296998 Y CN2296998 Y CN 2296998Y
- Authority
- CN
- China
- Prior art keywords
- stopple coupon
- pulverized coal
- cyclone separator
- blast pipe
- coal powder
- 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.)
- Expired - Fee Related
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a fixed type coal powder sampler used for a positive pressure directly blowing type powder producing system. The utility model comprises a sampling pipe inserted into a coal powder pipeline, an exhausting pipe, a cyclone separator and an air ejector, wherein, the sampling pipe connects with an inlet end of the cyclone separator, the exhausting pipe connects with an air discharging port of the air ejector, an air suction port of the air ejector connects with the cyclone separator, and a coal powder collecting bottle is arranged at the lower end of the cyclone separator. In addition, the utility model is also provided with a driving mechanism driving the sampling pipe and the exhausting pipe to move against the coal powder pipeline and a differential pressure meter is arranged between the sampling pipe and the coal powder pipeline. The utility model is convenient to operate and can realize isokinetic samplings.
Description
The utility model relates to a kind of coal fines sampling apparatus of coal-fired power station boiler pulverized coal preparation system, particularly a kind of coal fines sampling apparatus that is used for pressurized direct pulverizing coal system.
The coal fines sampling apparatus of coal-fired station's pressurized direct pulverizing coal system all adopts portable structure both at home and abroad at present, promptly with hand stopple coupon is pushed pulverized coal channel when sampling, and sampling finishes and stopple coupon extracted again.U.S. ASME PTC4.2 discloses a kind of coal fines sampling apparatus, it is mainly formed by stopple coupon, cyclone separator and air ejector serial connection, wherein the air intake opening of air ejector passes to pressurized air, the lower port of cyclone separator is placed receiving flask, stopple coupon inserts in the pulverized coal channel by a dustless joint, and this dustless joint also need pass to pressurized air in sampling process.This type of portable sampler needs two person cooperative works at least when operation, and sample time is longer.It is to be noted that this class sampler is difficult to realize the isokinetic sampling, and the isokinetic sampling has great importance to the safety and economic operation of boiler.In addition, the weary gas that contains coal dust that this class sampler is come out by cyclone separator when sampling all is to be discharged in the ambient atmosphere, when stopple coupon inserts and extracts in addition leakage of pulverized coal is arranged inevitably, so not only the pollution to environment is bigger, and the working environment of sampling is also relatively poor.
The purpose of this utility model provides a kind of easy and simple to handle and can realize isokinetic sampling's fixed coal fines sampling apparatus.
The solution that realizes the utility model purpose is: the fixed coal fines sampling apparatus that is provided comprises: comprise stopple coupon, cyclone separator and an air ejector that can insert in the pulverized coal channel, wherein the endpiece of stopple coupon is connected with the entrance point of cyclone separator, the air entry of air ejector is connected with cyclone separator, and pulverized coal collecting bottle is positioned at the lower end of cyclone separator.Improvements of the present utility model are: also be provided with one and can insert the blast pipe in the pulverized coal channel and drive the driving mechanism that aforementioned stopple coupon and blast pipe move relative to pulverized coal channel, between stopple coupon and pulverized coal channel, be provided with a differential manometer, wherein blast pipe is connected with the exhausr port of air ejector, stopple coupon and blast pipe all insert in the pulverized coal channel by the telescopic base that is fixed on the pulverized coal channel, and this telescopic base is provided with hermatic door.When not taking a sample, stopple coupon and blast pipe all return in the base, and hermatic door is closed.During sampling, open hermatic door, by driving mechanism stopple coupon and blast pipe are pushed in the pulverized coal channel, pass to pressurized air to air ejector, stopple coupon is introduced cyclone separator with the coal dust in the pulverized coal channel, air mixture, separates, coal dust falls into separator lower end, collected by receiving flask, weary gas (air that contains a small amount of coal dust) is extracted out by air ejector from the separation vessel upper end, and in blast pipe enters former pulverized coal channel.The flow velocity of material can be regulated by the compressed-air actuated pressure that adjusting enters air ejector in the stopple coupon, when realizing the isokinetic sampling, there is certain pressure reduction between stopple coupon and pulverized coal channel, so can know whether the isokinetic sampling's state that reaches by the pressure reduction demonstration of differential manometer.
Above-mentioned differential manometer preferably is equipped with the U-shaped tubular type differential manometer of liquid, and not only it is simple in structure, and relatively more directly perceived, and its precision is enough to satisfy sampling requirement.
The driving mechanism of stopple coupon and blast pipe can have multiple version, as pneumatic mechanism, pinion and rack and screw mechanism etc., but the simplest, reliable with hand screw mechanism.
Advantage compared with prior art of the present utility model is: easy to operate, whole sampling process only needs one man operation, and sample time is short; Because sampler is to be fixedly mounted on by the pulverized coal channel, stopple coupon is inserted in again in the base that is fixed on the pulverized coal channel all the time, has set up blast pipe in addition, will lack gas and enter in the pulverized coal channel, thereby avoid pollution to environment, has improved the condition of work of sampling.
Below in conjunction with accompanying drawing content of the present utility model is illustrated.
Accompanying drawing is the one-piece construction figure of an example of the present utility model.
As shown in the figure: the base 3,4 of stopple coupon 1 and blast pipe 2 is welded on the pulverized coal channel 16, and the place corresponding to two bases has through hole on pulverized coal channel 16 certainly.Two bases 3,4 are telescoping structures, are equipped with on it to also have a web joint that is used to locate 7 between ball-valve type hermatic door 5,6, two bases.Stopple coupon 1 and blast pipe 2 insert respectively in base 3 and the base 4, and packing_seal is housed therebetween.The driving mechanism of stopple coupon 1 and blast pipe 2 adopts hand screw mechanism, and it matches by screw rod 8, with screw rod 8 and the web joint 9 and the handwheel screw 10 that are fixed on stopple coupon 1 and the blast pipe 2 are formed, and wherein the termination of screw rod 8 is connected on the base web joint 7.When rotation hand wheel 10, screw rod 8 rotation promotes web joint 9 and moves, and then drives stopple coupon 1 and blast pipe 2 moves.Be connected to cyclone separator 11 in the rear end of stopple coupon, the upper port of separation vessel 11 links to each other with the bleeding point of air ejector 12, the exhausr port of air ejector 12 links to each other with blast pipe 2, the inlet end 13 and the external compression air communication of air ejector 12, and pulverized coal collecting bottle 14 is positioned at the lower port of separation vessel 11.In addition, between stopple coupon 1 and pulverized coal channel 16, also be provided with a U-shaped differential manometer 15.Valve 21,22,23,24,25,26 is housed respectively on each pipeline.When not taking a sample, the termination of stopple coupon 1 and blast pipe 2 is positioned among the base 3,4, and hermatic door 5,6 is closed.During sampling, open base hermatic door 5,6, rotate handwheel 10, stopple coupon 1 and blast pipe 2 are pushed in the pulverized coal channel 16; Open the gas admittance valve 26 of air ejector 12 and the valve 23 on the stopple coupon, purge separation vessel 11 and stopple coupon 1 with pressurized air; Order Open valve 24, valve 25 and valve 21,22, make the water colunm height difference in differential manometer 15 right sides, left side reach predetermined value by the aperture size of regulating gas admittance valve 26, make stopple coupon slowly and substantially enter pulverized coal channel evenly by handwheel 10 then, move to right-hand member from left end, return left end again, implement the isokinetic sampling.Coal dust, air mixture enter separation vessel 11 by stopple coupon, separate the back coal dust and fall into receiving flask 14, and the weary gas that air and a small amount of fine breeze are formed is siphoned away by air ejector 12, flows back to again in the pulverized coal channel 16 through blast pipe 2, and whole sampling process only needs 3～5 minutes.Sampling finishes, and stopple coupon and blast pipe are returned in the base 3,4, closes hermatic door 5,6.
Claims (3)
1, a kind of fixed coal fines sampling apparatus, comprise a stopple coupon (1) that can insert in the pulverized coal channel, cyclone separator (11) and air ejector (12), wherein the endpiece of stopple coupon (1) is connected with the entrance point of cyclone separator (11), the air entry of air ejector (12) is connected with cyclone separator (11), pulverized coal collecting bottle (14) is positioned at the lower end of cyclone separator (11), it is characterized in that also being provided with one can insert the blast pipe (2) in the pulverized coal channel and drive the driving mechanism that aforementioned stopple coupon (1) and blast pipe (2) move relative to pulverized coal channel, between stopple coupon and pulverized coal channel, be provided with a differential manometer (15), wherein blast pipe (2) is connected with the exhausr port of air ejector (12), stopple coupon (1) and blast pipe (2) are all by being fixed on the telescopic base (3 on the pulverized coal channel, 4) insert in the pulverized coal channel, this telescopic base is provided with hermatic door (5,6).
2, sampler as claimed in claim 1, the driving mechanism that it is characterized in that described stopple coupon (1) and blast pipe (2) is a hand screw mechanism, and it matches by screw rod (8), with screw rod (8) and the web joint (9) and the handwheel screw (10) that are fixed on stopple coupon (1) and the blast pipe (2) are formed.
3. sampler as claimed in claim 1 or 2 is characterized in that described differential manometer (15) is the U-shaped tubular type differential manometer that liquid is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239483 CN2296998Y (en) | 1997-05-26 | 1997-05-26 | Fixed coal powder sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239483 CN2296998Y (en) | 1997-05-26 | 1997-05-26 | Fixed coal powder sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296998Y true CN2296998Y (en) | 1998-11-11 |
Family
ID=33949467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97239483 Expired - Fee Related CN2296998Y (en) | 1997-05-26 | 1997-05-26 | Fixed coal powder sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296998Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140203B (en) * | 2007-09-19 | 2010-04-21 | 陆昕 | Spiral casing type coal fines sampling apparatus |
| 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 |
| CN102095605A (en) * | 2010-11-22 | 2011-06-15 | 山东电力研究院 | Double-regulation static pressure unbalanced coal dust constant-speed sampling system and method of system |
| CN102128732A (en) * | 2010-12-20 | 2011-07-20 | 西安交通大学 | Pulverized coal sampling exhaust gas recycling device |
| CN102749225A (en) * | 2012-07-11 | 2012-10-24 | 广东电网公司电力科学研究院 | Constant-speed continuous pulverized coal sampling device |
| CN104297022A (en) * | 2014-11-07 | 2015-01-21 | 成都蓝宇科维科技有限公司 | Smoke sampler capable of realizing representative sampling |
| CN104316358A (en) * | 2014-10-31 | 2015-01-28 | 成都蓝宇科维科技有限公司 | Coal powder sampler |
| 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 |
| CN104747809A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Flue gas sampling sealing device |
| CN106153371A (en) * | 2015-03-31 | 2016-11-23 | 沈蓉蓉 | A kind of sealed sampler |
| CN110878874A (en) * | 2018-09-06 | 2020-03-13 | 中国石油天然气股份有限公司 | Petroleum pipeline's anti-gas blocking device |
-
1997
- 1997-05-26 CN CN 97239483 patent/CN2296998Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140203B (en) * | 2007-09-19 | 2010-04-21 | 陆昕 | Spiral casing type coal fines sampling apparatus |
| 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 |
| CN102095605B (en) * | 2010-11-22 | 2012-12-19 | 山东电力研究院 | Double-regulation static pressure unbalanced coal dust constant-speed sampling system and method of system |
| CN102095605A (en) * | 2010-11-22 | 2011-06-15 | 山东电力研究院 | Double-regulation static pressure unbalanced coal dust constant-speed sampling system and method of system |
| CN102128732B (en) * | 2010-12-20 | 2013-02-06 | 西安交通大学 | Pulverized coal sampling exhaust gas recycling device |
| CN102128732A (en) * | 2010-12-20 | 2011-07-20 | 西安交通大学 | Pulverized coal sampling exhaust gas recycling device |
| CN102749225A (en) * | 2012-07-11 | 2012-10-24 | 广东电网公司电力科学研究院 | Constant-speed continuous pulverized coal sampling device |
| CN104316358A (en) * | 2014-10-31 | 2015-01-28 | 成都蓝宇科维科技有限公司 | Coal powder sampler |
| CN104297022A (en) * | 2014-11-07 | 2015-01-21 | 成都蓝宇科维科技有限公司 | Smoke sampler capable of realizing representative sampling |
| 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 |
| CN106153371A (en) * | 2015-03-31 | 2016-11-23 | 沈蓉蓉 | A kind of sealed sampler |
| CN104747809A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Flue gas sampling sealing device |
| CN110878874A (en) * | 2018-09-06 | 2020-03-13 | 中国石油天然气股份有限公司 | Petroleum pipeline's anti-gas blocking device |
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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 |