CN104964857A - Power station boiler smoke sampling device - Google Patents
Power station boiler smoke sampling device Download PDFInfo
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- CN104964857A CN104964857A CN201510404320.8A CN201510404320A CN104964857A CN 104964857 A CN104964857 A CN 104964857A CN 201510404320 A CN201510404320 A CN 201510404320A CN 104964857 A CN104964857 A CN 104964857A
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Abstract
The invention provides a power station boiler smoke sampling device. The power station boiler smoke sampling device comprises a plurality of sampling pipes, wherein lower parts of the plurality of sampling pipes extend to the inside of a power station boiler smoke channel; the upper part of each sampling pipe is respectively connected to a valve; the upper ends of the plurality of sampling pipes are connected to mixing chambers. The power station boiler smoke sampling device is capable of implementing the function of sampling the smoke of a plurality of channels of the power station boiler and is also capable of sampling the smoke at a single point.
Description
Technical field
The present invention has about a kind of flue gas sampler, especially has the flue gas in power station boiler sampling apparatus about applying in a kind of field of thermal power.
Background technology
At present, in the operation of fuel-burning power plant, oxygen in flue gas, carbon monoxide, oxides of nitrogen, sulphuric dioxide etc. are all important monitoring parameters, and also need smoke components accurately when calculating boiler efficiency, air preheater air leakage rate, pollutant emission value etc., therefore, can say that the measurement of smoke components is an important content of fired power generating unit.In today that energy saving standard pressure increases day by day, need to carry out more accurate smoke components and measure, this it is also proposed more and more higher requirement to flue gas sampling device.
No matter the national standard according to China and industry standard, or according to the technical regulation of foreign technology advanced country, due to enormous size, the boiler flue of large-scale Thermal generation unit carries out smoke components measurement, gridding method must be adopted to arrange measuring point, and its ultimate principle is that then multimetering averages by flow weighting.Unit scale is larger, and net point should be arranged more.Existing flue gas sampler is single channel flue gas sampler, it is only made up of a metal sampling pipe, need the different depth position being placed on flue gaging hole manually in use, change position after often measuring the smoke components of a net point again to carry out the measurement of next net point smoke components.
But, concerning single channel sampling apparatus, the net point that maximum problem is even all gaging hole places of each gaging hole place samples and can only carry out successively, and samples while all net points can not be realized, have a strong impact on the precision of measurement, also bring the problems such as workload is large, operation inconvenience simultaneously.
Along with domestic thermal power generation corporations take the management that day by day becomes more meticulous to unit operation, energy-conservation to unit, reduce discharging tap the latent power also increasingly deep, therefore, be necessary to carry out studying to flue gas sampler comprehensively and scientifically.
Summary of the invention
The object of this invention is to provide a kind of flue gas in power station boiler sampling apparatus, the function of station boiler being carried out to Multi-channel flue gas sampling can be realized, flue gas sampling can be carried out for single-point again.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
The invention provides a kind of flue gas in power station boiler sampling apparatus, it comprises many sampling pipes, the bottom of many described sampling pipes is stretched in station boiler flue, and described in every root, the top of sampling pipe is connected to valve, and the upper end of many described sampling pipes is connected with mixing chamber.
In a preferred embodiment, many described sampling pipes stretch into length in described station boiler flue and shortly equally to arrange from growing to.
In a preferred embodiment, the diameter of many described sampling pipes is identical.
In a preferred embodiment, many described sampling pipes are along the circumferential direction evenly distributed in described station boiler flue.
In a preferred embodiment, described sampling pipe is metal sampling pipe.
In a preferred embodiment, described valve is electromagnetism shut-off valve or manual shut-off valve.
In a preferred embodiment, gripping mechanism is connected with between many described sampling pipes.
In a preferred embodiment, described sampling pipe is five, the length of first described sampling pipe is 4000mm, the length of second described sampling pipe is 3200mm, the length of the 3rd described sampling pipe is 2400mm, the length of the 4th described sampling pipe is 1600mm, and the length of the 5th described sampling pipe is 800mm.
In a preferred embodiment, described sampling pipe is five, the length of first described sampling pipe is 3000mm, the length of second described sampling pipe is 2400mm, the length of the 3rd described sampling pipe is 1800mm, the length of the 4th described sampling pipe is 1200mm, and the length of the 5th described sampling pipe is 600mm.
In a preferred embodiment, the diameter of described sampling pipe is 14mm or 12mm.
Feature and the advantage of flue gas in power station boiler sampling apparatus of the present invention are: this flue gas in power station boiler sampling apparatus, Multi-channel flue gas sampling functions can be realized, flue gas sampling can be carried out for single-point again, this flue gas in power station boiler sampling apparatus can improve dirigibility and the convenience of flue gas in power station boiler sampling, and effectively can reduce workload when multimetering.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of flue gas in power station boiler sampling apparatus of the present invention.
Fig. 2 is the vertical view of flue gas in power station boiler sampling apparatus of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of flue gas in power station boiler sampling apparatus, it comprises many sampling pipes 1, and the bottom of many described sampling pipes 1 is stretched in station boiler flue 2, described in every root, the top of sampling pipe 1 is connected to valve 3, and the upper end of many described sampling pipes 1 is connected with mixing chamber 4.
Specifically, shown in Fig. 2, the upper end of station boiler flue 2 is provided with connected unit 21, connected unit 21 offers multiple through hole 211, and multiple through hole 211 is evenly arranged along the circumferencial direction of connected unit 21.
The quantity of sampling pipe 1 is identical with the quantity of through hole 211, this sampling pipe 1 is metal sampling pipe, such as irony sampling pipe, carbon steel sampling pipe or alloy steel sampling pipe etc., stretch in station boiler flue 2 in multiple through holes 211 that many sampling pipes 1 are located in connected unit 21, many sampling pipe 1 parts stretched in station boiler flue 2 are connected with gripping mechanism 11, this gripping mechanism 11 is a plate, and it plays the object of fixing many sampling pipes 1.In the present invention, many sampling pipes 1 are along the circumferential direction evenly distributed in station boiler flue 2, and the diameter of every root sampling pipe 1 is all identical; Many sampling pipes 1 stretch into length in station boiler flue 2 and shortly equally to arrange from growing to, and also namely sampling pipe 1 is positioned at the length of station boiler flue 2, and from the shortest sampling pipe 1 successively to the longest sampling pipe 1, the length difference between two between sampling pipe 1 is D.
In one embodiment, diameter connected unit 21 offering five through holes, 211, five through holes 211 is 14mm.In order to the interface size of the physical size and flue gas analysis instrument that adapt to station boiler flue 2, sampling pipe 1 has five, its caliber is 14mm, and correspondence is located in through hole 211, the length of sampling pipe 1 the longest in five sampling pipes 1 is 4000mm, the length of each sampling pipe 1 from long successively to the space D of short sampling pipe be between two 800mm, also be, the length of first sampling pipe 1 is 4000mm, the length of second sampling pipe 1 is 3200mm, the length of the 3rd sampling pipe 1 is 2400mm, the length of the 4th sampling pipe 1 is 1600mm, the length of the 5th sampling pipe 1 is 800mm.
In another specific embodiment, diameter connected unit 21 offering five through holes, 211, five through holes 211 is 12mm.In order to the interface size of the physical size and flue gas analysis instrument that adapt to station boiler flue 2, sampling pipe 1 has five, its caliber is 12mm, and correspondence is located in through hole 211, the length of sampling pipe 1 the longest in five sampling pipes 1 is 3000mm, the length of each sampling pipe 1 from long successively to the space D of short sampling pipe be between two 600mm, also be, the length of first sampling pipe 1 is 3000mm, the length of second sampling pipe 1 is 2400mm, the length of the 3rd sampling pipe 1 is 1800mm, the length of the 4th sampling pipe 1 is 1200mm, the length of the 5th sampling pipe 1 is 600mm.
Many sampling pipe 1 tops be positioned at outside station boiler flue 2 are connected to a valve 3, and in the present embodiment, valve 3 is electromagnetism shut-off valve or manual shut-off valve, by opening or valve-off 3, can realize the object of different sampling pipe 1 being carried out to sampling separately.
The upper end of many sampling pipes 1 is connected with a mixing chamber 4, and mixing chamber 4 has a mixed gas outlet 41, and the gas gathered in many sampling pipes 1 imports in mixing chamber 4, is flowed out by the mixed gas outlet 41 of mixing chamber 4.
Flue gas in power station boiler sampling apparatus of the present invention, when valve 3 standard-sized sheet on many sampling pipes 1, can sample to the measuring point of the multiple positions in station boiler flue 2 in multiple through holes 211 of station boiler flue 2 simultaneously; In addition, because the length of many sampling pipes 1 in station boiler flue 2 is different, therefore the sampling pipe 1 of different length can be selected to measure according to the different flue degree of depth; Have again, when needing to sample to the specific point position of certain in station boiler flue 2, only can open the valve 3 of corresponding sampling pipe 1 and close the valve 3 of other sampling pipe 1, and can the opening and closing of different arbitrarily switch valve 3 according to the position to be measured in station boiler flue 2; When needing to sample to the combination gas in station boiler flue 2, closing the valve 3 of each sampling pipe 1, opening the sampling that mixed gas outlet 41 can realize combination gas.Flue gas in power station boiler sampling apparatus of the present invention, Multi-channel flue gas sampling functions can be realized, flue gas sampling can be carried out for single-point again, this flue gas in power station boiler sampling apparatus can improve dirigibility and the convenience of flue gas in power station boiler sampling, and effectively can reduce workload when multimetering.
The foregoing is only several embodiments of the present invention, those skilled in the art can carry out various change or modification to the embodiment of the present invention according to content disclosed in application documents and not depart from the spirit and scope of the present invention.
Claims (10)
1. a flue gas in power station boiler sampling apparatus, it is characterized in that, it comprises many sampling pipes, and the bottom of many described sampling pipes is stretched in station boiler flue, described in every root, the top of sampling pipe is connected to valve, and the upper end of many described sampling pipes is connected with mixing chamber.
2. flue gas in power station boiler sampling apparatus as claimed in claim 1, is characterized in that, many described sampling pipes stretch into length in described station boiler flue and shortly equally to arrange from growing to.
3. flue gas in power station boiler sampling apparatus as claimed in claim 1, it is characterized in that, the diameter of many described sampling pipes is identical.
4. flue gas in power station boiler sampling apparatus as claimed in claim 1, it is characterized in that, many described sampling pipes are along the circumferential direction evenly distributed in described station boiler flue.
5. flue gas in power station boiler sampling apparatus as claimed in claim 1, it is characterized in that, described sampling pipe is metal sampling pipe.
6. flue gas in power station boiler sampling apparatus as claimed in claim 1, it is characterized in that, described valve is electromagnetism shut-off valve or manual shut-off valve.
7. flue gas in power station boiler sampling apparatus as claimed in claim 1, is characterized in that, be connected with gripping mechanism between many described sampling pipes.
8. flue gas in power station boiler sampling apparatus as claimed in claim 2, it is characterized in that, described sampling pipe is five, the length of first described sampling pipe is 4000mm, the length of second described sampling pipe is 3200mm, the length of the 3rd described sampling pipe is 2400mm, and the length of the 4th described sampling pipe is 1600mm, and the length of the 5th described sampling pipe is 800mm.
9. flue gas in power station boiler sampling apparatus as claimed in claim 2, it is characterized in that, described sampling pipe is five, the length of first described sampling pipe is 3000mm, the length of second described sampling pipe is 2400mm, the length of the 3rd described sampling pipe is 1800mm, and the length of the 4th described sampling pipe is 1200mm, and the length of the 5th described sampling pipe is 600mm.
10. flue gas in power station boiler sampling apparatus as claimed in claim 3, it is characterized in that, the diameter of described sampling pipe is 14mm or 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404320.8A CN104964857A (en) | 2015-07-10 | 2015-07-10 | Power station boiler smoke sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404320.8A CN104964857A (en) | 2015-07-10 | 2015-07-10 | Power station boiler smoke sampling device |
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| CN104964857A true CN104964857A (en) | 2015-10-07 |
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| CN201510404320.8A Pending CN104964857A (en) | 2015-07-10 | 2015-07-10 | Power station boiler smoke sampling device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675820A (en) * | 2016-02-04 | 2016-06-15 | 大唐环境产业集团股份有限公司 | Flue gas composition measurement method and system |
| CN106153406A (en) * | 2016-08-31 | 2016-11-23 | 哈尔滨锅炉厂有限责任公司 | Flue gas sampling device and sampling method thereof for SCR reactor |
| JP2018072305A (en) * | 2016-11-04 | 2018-05-10 | 花王株式会社 | Odor capturing device |
| CN110082168A (en) * | 2019-06-04 | 2019-08-02 | 佛山华谱测智能科技有限公司 | A kind of multi-channel gas sampling probe and the sampler including the probe |
| CN110456006A (en) * | 2019-09-12 | 2019-11-15 | 北京市劳动保护科学研究所 | Pollutant emission monitors system in burst accident |
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| CN204924743U (en) * | 2015-07-10 | 2015-12-30 | 国家电网公司 | Power plant boiler flue gas sampling device |
| CN105891414A (en) * | 2014-12-26 | 2016-08-24 | 浙江浙能技术研究院有限公司 | Sampling-pump-free smoke concentration measurement method and device based on grid arrangement method |
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| DE1230139B (en) * | 1965-08-21 | 1966-12-08 | Brown Boveri Krupp Reaktor | Device for taking gas samples from a cooled nuclear reactor |
| GB1145509A (en) * | 1965-08-21 | 1969-03-19 | Brown Boveri Krupp Reaktor | A sampling device for taking gas samples |
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| CN104132754A (en) * | 2014-05-14 | 2014-11-05 | 湘潭大学 | High-fidelity high-purity gas sampling system applied to indirect high-temperature gas temperature measurement device |
| CN203908822U (en) * | 2014-05-23 | 2014-10-29 | 国家电网公司 | Sampling device for collecting flue gas at six points in utility boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675820A (en) * | 2016-02-04 | 2016-06-15 | 大唐环境产业集团股份有限公司 | Flue gas composition measurement method and system |
| CN106153406A (en) * | 2016-08-31 | 2016-11-23 | 哈尔滨锅炉厂有限责任公司 | Flue gas sampling device and sampling method thereof for SCR reactor |
| JP2018072305A (en) * | 2016-11-04 | 2018-05-10 | 花王株式会社 | Odor capturing device |
| CN110082168A (en) * | 2019-06-04 | 2019-08-02 | 佛山华谱测智能科技有限公司 | A kind of multi-channel gas sampling probe and the sampler including the probe |
| CN110456006A (en) * | 2019-09-12 | 2019-11-15 | 北京市劳动保护科学研究所 | Pollutant emission monitors system in burst accident |
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Application publication date: 20151007 |