CN105300745B - Adjustable boiler water cooling sampling gun apparatus and sampling method - Google Patents
Adjustable boiler water cooling sampling gun apparatus and sampling method Download PDFInfo
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- CN105300745B CN105300745B CN201410261940.6A CN201410261940A CN105300745B CN 105300745 B CN105300745 B CN 105300745B CN 201410261940 A CN201410261940 A CN 201410261940A CN 105300745 B CN105300745 B CN 105300745B
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Abstract
It is in a kind of boiler combustion process, it can be achieved that water cooling sampler and method to the sampling of burner hearth high-temperature flue gas the invention belongs to boiler combustion test device range.It is characterized in that the sampler is made of dismountable multisection type water cooling probe tube, different components are connected through a screw thread assembling, and the sealing between each water cooling component is realized by red copper gasket.Sampler is supported using refractory metal bracket, it is made to have enough rigidity.In sampling process, by the assembling of the different sampling assemble of joint number, the sampling to high-temperature burner hearth different location flue gas is realized.
Description
Technical field
It is in a kind of boiler combustion process, it can be achieved that burner hearth high temperature the invention belongs to boiler combustion test device range
The water cooling sampler and method of smoke sampling.
Background technique
A large amount of pollutants are generated in boiler combustion process, the understanding to pollutant action rule in burner hearth is pollutant catabolic gene
Basis, and the accurate sampling of fume sample is to study the premise of the action rule in burner hearth.Sampling gun is one kind to specific combustion
The usual means that equipment combustion product is acquired are burnt, but conventional sampling gun is all after boiler back end ductwork, electrostatic precipitation
It is sampled with after desulfurization, these places are all very low relative to burner hearth internal temperature, difficult for the sampling gun of these place exploitations
To bear the high temperature of burner hearth.It also lacks at present for burner hearth, the especially high temperature of power plant boiler burner hearth central high temperature flame zone
Sampling gun.
Summary of the invention
The object of the present invention is to provide one kind, and the device and method of analysis can be sampled in burner hearth internal high temperature environment,
It is characterized in that, sampling gun is a kind of dismountable multistage sampler, and installs water cooling plant additional in sampling gun, made by water cooling
Sampling gun is no more than operating temperature, guarantees the physicochemical properties of sample will not be made to change in sampling process.
In the present invention, water inlet pipe and water outlet pipe is installed additional in sampling gun, water inlet pipe and water outlet pipe passes through high temperature resistant
Metallic support is connected with each other, and sample pipe is socketed inside outlet pipeline.It is connected through a screw thread assembling more piece inlet pipeline, water outlet
Pipeline and probe tube stainless steel water cooling component form water-cooling welding torch, and the sealing between each water cooling component is realized by red copper gasket.
According to above-mentioned device, the present invention provides a kind of water cooling sampling gun operating method, in test site group arrangement, assembles
The sampling gun for being passed through cooling water is protruded into boiler furnace afterwards, burner hearth flue gas is extracted by the latter linked air-extractor of sampling gun and is gone forward side by side
And it analyzes.Consider test burner hearth, in-site installation and traffic condition, sampling gun length can be by different length and different water cooling component groups
At.
The present invention compared with general routine sampling rifle, it can be achieved that boiler internal center difference high-temperature area it is online or non-
On-line period guarantees that sampling gun can operate normally under high temperature environment, and do not change the physical chemistry of sample by water cooling
Matter can more reflect the real process of burning.
Detailed description of the invention
Fig. 1 is water cooling sampling gun apparatus overall structure diagram.
Wherein 1 is cooling water inlet pipe, and 2 be support cutting ferrule, and 3 be middle nipple, and 4 be probe tube screw top connector, 5
It is cooling water outlet pipe, 6 be major thread connector, and 7 be probe tube, and 8 be probe tube tailing screw flight connector, and 9 be cooling water inlet, 10
It is cooling water outlet, 11 be gas inlet, and 12 be exhanst gas outlet, and 13 be sampling gun head temperature sensor, and 14 be sampling gun breech
Portion's temperature sensor.
Specific embodiment
The present invention is a kind of water-cooling welding torch that dismountable multisection type can be safely operated under high temperature environment.It is installed additional in sampling gun
Recirculated water cooling pipeline, cooling water inlet pipe road and cooling water outlet pipe road are connected with each other by refractory metal bracket, outlet pipe
Sample pipe is socketed inside road.It is connected through a screw thread assembling more piece stainless steel water cooling component composition water-cooling welding torch, each water cooling component
Between sealing realized by red copper gasket.Consideration test burner hearth, in-site installation and traffic condition, sampling gun length can be by not
It is formed with length water cooling component.
It is explained with reference to the accompanying drawing.
Water cooling sampling gun mainly includes probe tube and the recirculated water that is made of cooling water inlet pipe 1, cooling water outlet pipe 5 etc.
Cold pipeline.Cooling water inlet pipe 1, material are stainless steel, can there is 2~5 sections, and 1~2 meter of every section passes through middle screw thread between section and section
Connector 3 is interconnected with one another, and is threaded through red copper gasket seal.4 be probe tube screw top connector, close by red copper gasket
Envelope, prevents leak gas leakage, while being directly connected to probe tube, fixed probe tube.Cooling water outlet pipe 5, material are stainless steel, often
It is interconnected with one another between section by major thread connector 6, passes through red copper gasket seal.7 be probe tube, it is in cooling water water outlet
The centre of pipe 5 is also made of more piece pipeline, and different length of tubing are connected through a screw thread, in order to guarantee water-cooled effect and internal and external channel
Relative position, setting partition is fixed among the probe tube 7 and cooling water outlet pipe 5 of every section.8 be that probe tube tailing screw flight connects
Head prevents leak gas leakage by red copper gasket seal, while guaranteeing that probe tube is in center.Cooling water inlet pipe 1 and cold
But water outlet pipe 5 supports cutting ferrule 2 to support and fix made of the heat-resisting materials such as tungsten.
Recirculated cooling water enters from cooling water inlet 9, enters cooling water outlet pipe 5 by cooling water inlet pipe 1, from cooling
Water out 10 is discharged.Flue gas enters from into flue gas mouth 11, is connected by gas sampling probe from exhanst gas outlet 12 and other analysis instruments
It connects, to realize online or non-online to boiler combustion process sampling.
In addition, mounting temperature sensor 13 and 14 is distinguished in sampling gun head and tail portion, it can real-time monitoring sample position temperature
With temperature of the flue gas after water cooling sampling gun.Water flow is adjusted to the monitoring of temperature by temperature sensor 14, is guaranteed
Sampling gun is maintained within the scope of predetermined temperature and is worked.
In sampling process, in test site group arrangement, the sampling gun for assembling water flowing protrudes into boiler furnace, passes through sampling
The latter linked air-extractor of rifle extracts burner hearth flue gas and and then analyzes.
The present invention can be summarized with others without prejudice to the concrete form of spirit or central characteristics of the invention.Therefore, originally
The embodiment above of invention can only all be considered the description of the invention and cannot limit the present invention, and claims indicate
The scope of the present invention, and above-mentioned explanation does not point out the scope of the present invention all.Therefore, with claims of the present invention
Any change in comparable meaning and scope, is all considered as being included within the scope of the claims.
Claims (3)
1. one kind can be sampled the device of analysis by different location in boiler furnace internal high temperature environment, including probe tube (7),
The recirculated water cooling pipe that cooling water inlet pipe (1), cooling water outlet pipe (5), cooling water inlet (9) and cooling water outlet (10) form
Road, and by support cutting ferrule (2), middle nipple (3), probe tube screw top connector (4), major thread connector (6), probe tube
The assembling and support part of tailing screw flight connector (8) composition, by sampling gun head temperature sensor (13) and sampling gun tail portion temperature
Spend sensor (14) composition temperature sensor system, which is characterized in that on sampler install additional cooling water inlet pipe (1) and
Cooling water outlet pipe (5), cooling water outlet pipe (5) internal sleeve connect probe tube (7), are connected through a screw thread assembling more piece stainless steel water
Cold component and probe tube form water-cooling welding torch, and the sealing between each water cooling component realizes that sampling gun is by difference by red copper gasket
Length and different type water cooling component composition, the intermediate setting partition of the probe tube (7) and cooling water outlet pipe (5) of every section are fixed,
The sampler has dismountable multisection type construction of the on-line period for the flue gas that can be realized boiler furnace different location, with
And it will not make the physicochemical properties of sample are changed can control temperature and sample position cigarette in certifiable sampling process
The identical recirculated water cooling pipeline of temperature degree, and component assembling can be carried out in test site, the sampling gun for assembling water flowing protrudes into
Boiler furnace, the power provided by the latter linked air-extractor of sampling gun, burner hearth flue gas is entered by gas inlet (11) to be sampled
It manages (7), and enters air-extractor by exhanst gas outlet (12) and be acquired analysis.
2. according to the device of sampling analysis described in claim 1, which is characterized in that sampling gun head and tail portion are mounted with to sample respectively
Pipette tips portion temperature sensor (13) and tail temperature sensor (14), can real-time monitoring sample position temperature and flue gas pass through water cooling
Temperature after sampling gun adjusts water flow, is maintained at flue gas within the scope of predetermined temperature according to the temperature after water cooling sampling gun.
3. according to the device of sampling analysis described in claim 1, which is characterized in that sampling gun length can be by each component count and each
The change of length component, which is realized, to be adjusted, and sampling gun is made of 2~5 sections, and every section length is 1~2 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261940.6A CN105300745B (en) | 2014-06-11 | 2014-06-11 | Adjustable boiler water cooling sampling gun apparatus and sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261940.6A CN105300745B (en) | 2014-06-11 | 2014-06-11 | Adjustable boiler water cooling sampling gun apparatus and sampling method |
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| CN105300745A CN105300745A (en) | 2016-02-03 |
| CN105300745B true CN105300745B (en) | 2019-03-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781035A (en) * | 2020-07-09 | 2020-10-16 | 江苏方天电力技术有限公司 | High-temperature flue gas sampling device |
| CN113465997A (en) * | 2021-07-22 | 2021-10-01 | 安徽工业大学 | Rotary multifunctional flue gas sampling gun |
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| JPH09218141A (en) * | 1996-02-08 | 1997-08-19 | Mitsubishi Heavy Ind Ltd | Sampling device for micro component gas from dust contained high-temperature and high-pressure gas |
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| JPH09218141A (en) * | 1996-02-08 | 1997-08-19 | Mitsubishi Heavy Ind Ltd | Sampling device for micro component gas from dust contained high-temperature and high-pressure gas |
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