CN202433231U - Electrically-heated sampling gun for testing performance of boiler smoke denitration system of power station - Google Patents
Electrically-heated sampling gun for testing performance of boiler smoke denitration system of power station Download PDFInfo
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- CN202433231U CN202433231U CN2011205396558U CN201120539655U CN202433231U CN 202433231 U CN202433231 U CN 202433231U CN 2011205396558 U CN2011205396558 U CN 2011205396558U CN 201120539655 U CN201120539655 U CN 201120539655U CN 202433231 U CN202433231 U CN 202433231U
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- electrical heating
- rifle
- rifle body
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Abstract
The utility model discloses an electrically-heated sampling gun for testing the performance of a boiler smoke denitration system of a power station. The electrically-heated sampling gun comprises a gun head, a gun body and an extraction connector, as well as a quartz tube, an electric heating wire, a close cover, a thermoelectric couple and a temperature adjusting controller, wherein the quartz tube is inserted to an inner tube of the gun body; the close cover is fixedly connected with the tail part of the gun body and provided with a channel communicated with the extraction connector; the head part of the quartz tube is communicated with the the inner cavity of the gun head, and the tail part of the quartz tube is communicated with the extraction connector through the channel of the close cover; the electric heating wire is wound on the inner tube of the gun body; the thermoelectric couple is fixedly arranged on the close cover and arranged between the inner tube and an outer tube of the gun body and near the outer wall of the inner tube; and the electric heating wire and the thermoelectric couple are respectively connected with the temperature adjusting controller through a power line and a connecting lead. The electrically-heated sampling gun can be used for reducing adsorption loss of NH3 or SO3 in the sampling gun when testing the boiler denitration performance of the power station and effectively filtering smoke in sampling.
Description
Technical field
The utility model relates to a kind of test equipment of flue gas in power station boiler denitrating system performance test, specifically is meant the electrical heating sampling gun of flue gas in power station boiler denitrating system performance test, is used for the NH of station boiler denitrating system performance test
3, SO
3The electrical heating sampling.
Background technology
In the denitrating system of station boiler, the escaping of ammonia and SO
2/ SO
3Conversion ratio be two very strict appraisal standards, therefore, in carrying out the denitrating system performance test, NH in the flue gas
3With SO
3The measuring accuracy of content directly influences the escaping of ammonia and the SO of system
2/ SO
3Conversion ratio.Owing to receive the restriction of measuring technique, at present for NH in the flue gas
3With SO
3On-site sampling, laboratory measurement are adopted in the test of content mostly.Because NH
3With SO
3The cold easy condensation of chance in sampling process, and be prone to absorbed by sample devices, and research shows that quartz is for NH
3With SO
3Absorption seldom.In addition, in the test sampling process, it is high also to face dust content, to the bigger problem of test findings influence.
The utility model content
The purpose of the utility model provides a kind of electrical heating sampling gun of flue gas in power station boiler denitrating system performance test, is implemented in the test of station boiler denitration performance NH
3Or SO
3Can make things convenient for, stablize the heating flue gas during sampling in advance, reduce NH
3Or SO
3Adsorption losses in sampling gun, and in the effective effect of filtering smoke of when sampling.
This purpose of the utility model is to realize through following technical scheme: the electrical heating sampling gun of flue gas in power station boiler denitrating system performance test, and it comprises rifle head, rifle body and the connector of bleeding, the head of rifle body is connected with the rifle head; Afterbody is connected with the connector of bleeding, and the connector of bleeding connects air extractor, and it is characterized in that: said rifle body is the double-layer stainless steel pipe; Fix through support between the inner and outer pipe of rifle body, said electrical heating sampling gun also comprises quartz ampoule, electrical heating wire, capping, thermopair and temperature regulation controller, and said quartz ampoule is inserted in the interior pipe of rifle body; Said capping is fixedly connected with the afterbody of rifle body, and capping has the passage that is communicated with the connector of bleeding, and the head of quartz ampoule is communicated with the inner chamber of rifle head; Afterbody is communicated with the connector of bleeding through the passage of capping; Electrical heating wire is wrapped on the interior pipe of rifle body, and thermopair is fixedly mounted in the capping, between the inner and outer pipe of rifle body; And outer wall near interior pipe; Electrical heating wire and thermopair respectively through power lead be connected lead and be connected with temperature regulation controller, temperature regulation controller can receive the temperature signal that the thermopair transmission comes, and can control the heating-up temperature of electrical heating wire; Flue gas from station boiler heats in quartz ampoule, behind the connector of bleeding as sample collection.
In the utility model, the support between the inner and outer pipe of said rifle body is a plurality of four jiaos of supports, and a plurality of four jiaos of supports are arranged along the axis direction of rifle body successively.Said capping is the right cylinder of T font, and the passage of said capping is offered along the center line perforation of capping.
In the utility model, said electrical heating sampling gun also comprises fixed disc, and fixed disc is sleeved on the afterbody of the external pipe of rifle.During sampling, sampling gun is fixed with bolt connecting mode through fixed disc, prevents that sampling gun rocks and influences test findings in the test, seals with pad.
In the utility model, said rifle head is connected with the head threads of rifle body, and said rifle head comprises integrally welded beak head and stainless steel sleeve head; Said beak head has the flue gas suction inlet; Said collet head is the double-layer barrel structure, and wherein inner core has the inner core chamber, and the flue gas suction inlet is communicated with the inner core chamber; Said urceolus has the urceolus chamber; Offer a plurality of connection apertures that are communicated with the urceolus chamber on the barrel of inner core, the inner and outer pipe of said urceolus chamber and said rifle body is all isolated, is communicated with the head of said quartz ampoule.
Filling has the silica wool of filtering smoke in the inner core chamber of said inner core.
Compared with prior art, the utility model has following remarkable result:
(1) the utility model electrical heating sampling gun prevents NH through the boiler smoke of flowing through is heated
3With SO
3In sampling process, meet cold easy condensation, improve accuracy of experimental results.
(2) the utility model electrical heating sampling gun adopts the runner of quartz ampoule quartz as boiler smoke, and is quartzy for NH
3With SO
3Absorption seldom, to reduce NH
3Or SO
3Adsorption losses in sampling gun.
(3) the utility model electrical heating sampling gun is provided with the silica wool of filtering smoke at the rifle head, filters the dustiness in the flue gas, eliminates the influence to test findings.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is explained further details.
Fig. 1 is the one-piece construction synoptic diagram of the utility model electrical heating sampling gun;
Fig. 2 is the enlarged drawing of rifle head in the utility model electrical heating sampling gun.
Description of reference numerals
1, rifle body; 2, rifle head; 3, silica wool; 4, four jiaos of supports; 5, quartz ampoule;
6, electrical heating wire; 7, sleeve pipe; 8, thermopair; 9, the connector of bleeding;
10, fixed disc; 11, temperature regulation controller; 12, connect lead; 13, power lead;
14, capping; 21, beak head; 22, collet head; 23, be communicated with aperture
Embodiment
Like the electrical heating sampling gun of Fig. 1 to flue gas in power station boiler denitrating system performance test shown in Figure 2, it comprises rifle head 2, rifle body 1 and the connector 9 of bleeding, and the head of rifle body 1 is connected with rifle head 2; Afterbody is connected with the connector 9 of bleeding, and the connector 9 of bleeding connects air extractor, and rifle body 1 is the double-layer stainless steel pipe; Fix through support between the inner and outer pipe of rifle body 1, the electrical heating sampling gun also comprises quartz ampoule 5, electrical heating wire 6, capping 14, thermopair 8 and temperature regulation controller 11, and quartz ampoule 5 is inserted in the interior pipe of rifle body 1; Capping 14 is fixedly connected with the afterbody of rifle body 1, and capping 14 has the passage that is communicated with the connector 9 of bleeding, and the head of quartz ampoule 5 is communicated with the inner chamber of rifle head 2; Afterbody is communicated with the connector 9 of bleeding through the passage of capping 14; Electrical heating wire 6 is wrapped on the interior pipe of rifle body 1, and thermopair 8 is fixedly mounted in the capping 14 through sleeve pipe 7, and thermopair 8 is through being bolted in the sleeve pipe 7; Thermopair 8 is between the inner and outer pipe of rifle body 1; And near the outer wall of interior pipe, electrical heating wire 6 and thermopair 8 respectively through power lead 13 be connected lead 12 and be connected with temperature regulation controller 11, temperature regulation controller 11 can realize that temperature is set, temperature automatically controlled function; Temperature regulation controller 11 can receive the temperature signal that thermopair 8 transmission come; And can control the heating-up temperature of electrical heating wire 6, in quartz ampoule 5, heat from the flue gas of station boiler, behind the connector 9 of bleeding as sample collection.
In the present embodiment, the support between the inner and outer pipe of rifle body 1 is a plurality of four jiaos of supports 4, and a plurality of four jiaos of supports 4 are arranged along the axis direction of rifle body 1 successively.Capping 14 is the right cylinder of T font, and the passage of capping 14 is offered along the center line perforation of capping 14.
The electrical heating sampling gun also comprises fixed disc 10, and fixed disc 10 is sleeved on the afterbody of rifle body 1 outer tube.During sampling, sampling gun is fixed with bolt connecting mode through fixed disc 10, seals with pad.
In the present embodiment, rifle head 2 is connected with the head threads of rifle body 1, and rifle head 2 comprises integrally welded beak head 21 and stainless steel sleeve head 22; Beak head 21 has the flue gas suction inlet, and collet head 22 is the double-layer barrel structure, and wherein inner core has the inner core chamber; Filling has the silica wool 3 of filtering smoke in the inner core chamber of inner core; The flue gas suction inlet is communicated with the inner core chamber, and urceolus has the urceolus chamber, offers a plurality of connection apertures 23 that are communicated with the urceolus chamber on the barrel of inner core; The inner and outer pipe of urceolus chamber and rifle body 1 is all isolated, is communicated with the head of quartz ampoule 5.Carrying out NH
3, SO
3During sampling, the silica wool of inserting 3 can be filtered the flue dust in the boiler smoke.
The electrical heating sampling gun of the utility model can be used for the NH of station boiler denitrating system performance test
3, SO
3Electrical heating sampling Deng gas.This electrical heating sampling gun in station boiler denitration performance test to NH
3Or SO
3Can make things convenient for, stablize the heating flue gas during sampling in advance, reduce NH
3Or SO
3Adsorption losses in sampling gun, and in the effective effect of filtering smoke of when sampling.
The foregoing description of the utility model is not the qualification to the utility model protection domain; The embodiment of the utility model is not limited thereto; According to the foregoing of the utility model,, do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite according to the ordinary skill knowledge and the customary means of this area; Modification, replacement or the change of other various ways that the said structure of the utility model is made all drop within the protection domain of the utility model.
Claims (4)
1. the electrical heating sampling gun of flue gas in power station boiler denitrating system performance test, it comprises rifle head, rifle body and the connector of bleeding, the head of rifle body is connected with the rifle head; Afterbody is connected with the connector of bleeding, and the connector of bleeding connects air extractor, and it is characterized in that: said rifle body is the double-layer stainless steel pipe; Fix through support between the inner and outer pipe of rifle body, said electrical heating sampling gun also comprises quartz ampoule, electrical heating wire, capping, thermopair and temperature regulation controller, and said quartz ampoule is inserted in the interior pipe of rifle body; Said capping is fixedly connected with the afterbody of rifle body, and capping has the passage that is communicated with the connector of bleeding, and the head of quartz ampoule is communicated with the inner chamber of rifle head; Afterbody is communicated with the connector of bleeding through the passage of capping; Electrical heating wire is wrapped on the interior pipe of rifle body, and thermopair is fixedly mounted in the capping, between the inner and outer pipe of rifle body; And outer wall near interior pipe; Electrical heating wire and thermopair respectively through power lead be connected lead and be connected with temperature regulation controller, temperature regulation controller can receive the temperature signal that the thermopair transmission comes, and can control the heating-up temperature of electrical heating wire; Flue gas from station boiler heats in quartz ampoule, behind the connector of bleeding as sample collection.
2. electrical heating sampling gun according to claim 1 is characterized in that: said electrical heating sampling gun also comprises fixed disc, and fixed disc is sleeved on the afterbody of the external pipe of rifle.
3. electrical heating sampling gun according to claim 1 and 2 is characterized in that: said rifle head is connected with the head threads of rifle body, and said rifle head comprises integrally welded beak head and stainless steel sleeve head; Said beak head has the flue gas suction inlet; Said collet head is the double-layer barrel structure, and wherein inner core has the inner core chamber, and the flue gas suction inlet is communicated with the inner core chamber; Said urceolus has the urceolus chamber; Offer a plurality of connection apertures that are communicated with the urceolus chamber on the barrel of inner core, the inner and outer pipe of said urceolus chamber and said rifle body is all isolated, is communicated with the head of said quartz ampoule.
4. electrical heating sampling gun according to claim 3 is characterized in that: filling has the silica wool of filtering smoke in the inner core chamber of said inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205396558U CN202433231U (en) | 2011-12-20 | 2011-12-20 | Electrically-heated sampling gun for testing performance of boiler smoke denitration system of power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205396558U CN202433231U (en) | 2011-12-20 | 2011-12-20 | Electrically-heated sampling gun for testing performance of boiler smoke denitration system of power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433231U true CN202433231U (en) | 2012-09-12 |
Family
ID=46782671
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205396558U Expired - Lifetime CN202433231U (en) | 2011-12-20 | 2011-12-20 | Electrically-heated sampling gun for testing performance of boiler smoke denitration system of power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433231U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359721A (en) * | 2014-11-10 | 2015-02-18 | 武汉洪兴伟业环境科技有限公司 | Heating type smoke sampling gun |
| CN104614222A (en) * | 2015-01-27 | 2015-05-13 | 国家电网公司 | Ammonia measurement device for denitration of flue gas pipeline |
| CN104359725B (en) * | 2014-09-28 | 2017-08-25 | 武汉洪兴伟业环境科技有限公司 | A kind of smoke-dust heating sampling gun |
-
2011
- 2011-12-20 CN CN2011205396558U patent/CN202433231U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359725B (en) * | 2014-09-28 | 2017-08-25 | 武汉洪兴伟业环境科技有限公司 | A kind of smoke-dust heating sampling gun |
| CN104359721A (en) * | 2014-11-10 | 2015-02-18 | 武汉洪兴伟业环境科技有限公司 | Heating type smoke sampling gun |
| CN104614222A (en) * | 2015-01-27 | 2015-05-13 | 国家电网公司 | Ammonia measurement device for denitration of flue gas pipeline |
| CN104614222B (en) * | 2015-01-27 | 2017-03-22 | 国家电网公司 | Ammonia measurement device for denitration of flue gas pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510080 Dongfeng East Road, Guangdong, Guangzhou, water, Kong Kong, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171128 Address after: 510655, No. fifth, No. 146-150, Whampoa Avenue, Tianhe District, Guangdong, Guangzhou Patentee after: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: 510655 5th floor, no.146-150, Huangpu Avenue Middle Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |