CN205844030U - Portable the escaping of ammonia chemical absorbing sampling apparatus - Google Patents
Portable the escaping of ammonia chemical absorbing sampling apparatus Download PDFInfo
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- CN205844030U CN205844030U CN201620664098.5U CN201620664098U CN205844030U CN 205844030 U CN205844030 U CN 205844030U CN 201620664098 U CN201620664098 U CN 201620664098U CN 205844030 U CN205844030 U CN 205844030U
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- escaping
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Abstract
This utility model relates to a kind of portable the escaping of ammonia chemical absorbing sampling apparatus, including sampler and quantitative collection device, sampler includes probe tube and defecator, probe tube is that quartz material is made, its outer wall is socketed with metal tube, metal tube heater strip the most corresponding with probe tube, defecator correspondence is assemblied in probe tube end；Probe tube is connected by connecting tube correspondence quantitative collection device；Filter for installation is set with filtering smoke, prevents flue dust from entering absorption bottle and the escaping of ammonia measurement result is had an impact；Utilize heater strip to heat and sampled by temperature controller constant temperature, reducing the NH caused because of temperature factor3Producing absorption in sampling gun, sampling gun is quartz ampoule material, it is possible to largely reduce NH3Adsorption losses.
Description
Technical field
This utility model belongs to thermal power plant gas denitrifying technology, is specifically related to a kind of for coal-burning boiler ammonium gas concentration
The portable the escaping of ammonia chemical absorbing sampling apparatus measured.
Background technology
Along with putting into operation on a large scale of China's thermal power plant's denitrification apparatus. selective-catalytic-reduction denitrified (SCR) or non-selective
Catalytic-reduction denitrified (SNCR) becomes the requisite part of coal-burning boiler, SCR and SNCR is all with NH3For reducing agent, go back
Former NOXBecome N2And H2O, unreacted NH completely in course of reaction3With boiler combustion process produces a small amount of SO3With in flue gas
Water generation combination reaction generate ammonium hydrogen sulfate (ABS), the reaction rate of ammonium hydrogen sulfate mainly with escaping in flue-gas temperature, flue gas
Ease NH3Concentration, SO3Concentration and H2O content is relevant.Generally. denitration outlet ammonia slip concentration design load is not higher than
3ppm, but in real work, a lot of denitration outlet amount of ammonia slip are far beyond design load；Therefore some thermal power plants occur
And the air preheater heat exchange element surface ammonium hydrogen sulfate depositional phenomenon that cause high by the escaping of ammonia rate, causes air preheater to send out
Raw fouling, blocking, cause air-introduced machine undercapacity, boiler load to reduce, have a strong impact on economy and the safety of unit operation.
Thermal power plant is assembled with greatly the escaping of ammonia on-Line Monitor Device (CEMS) and instructs operations staff to adjust ammonia spraying amount, with fall
Low denitration outlet the escaping of ammonia.But cause the amount distribution of outlet the escaping of ammonia due to smoke distribution inequality and the inequality of ammonia spraying amount
Inequality, online the escaping of ammonia monitoring device (optical method) is due to by dust, vibration and unreacted NH3With the water in flue gas
Point, SO3Reaction generates ammonium hydrogen sulfate (ABS) and sticks to the first-class restriction condition of instrumental transmission pipeline, forms sampling error, and then leads
Cause the escaping of ammonia measurement aspect deviation bigger.
Utility model content
In order to solve the problems referred to above, it is provided that a kind of Novel sampling device for coal-burning boiler ammonium gas measurement of concetration, this practicality
A kind of portable the escaping of ammonia chemical absorbing sampling apparatus of new design.
The technical solution adopted in the utility model is: a kind of portable the escaping of ammonia chemical absorbing sampling apparatus, including sampling
Device and quantitative collection device, sampler includes probe tube and defecator, and probe tube is that quartz material is made, its outer wall set
Being connected to metal tube, metal tube heater strip the most corresponding with probe tube, defecator correspondence is assemblied in probe tube end；
Probe tube is connected by connecting tube correspondence has quantitative collection device, described quantitative collection device to include two mutual strings
The impact type absorption bottle first of connection and impact type absorption bottle second, gas collector and liquid header, liquid header sample tap is even
Being connected to constant flow pump, described constant flow pump entrance is stretched into bottom two impact type absorption bottles by connecting tube；Gas collector is by connecting
Pipe is connected to impact type absorption bottle second inner chamber, and described impact type absorption bottle first connects probe tube, gas collector by connecting tube
Inside is provided with suspended body flowmeter and air pump.
Preferably, being provided with the temperature sensing device of its inwall of conflicting in probe tube, heater strip is corresponding with temperature sensing device
It is connected on temperature controller；Filling absorbing liquid in impact type absorption bottle, two impact type absorption bottle inlet ends stretch under liquid level, give vent to anger
End is positioned on liquid level；Defecator inner chamber is provided with quartz filter cotton, and defecator end is provided with corresponding quartz filter cotton and filters
Device orifice plate；Metal tube is fixedly connected on probe tube by corner support, and metal tube is stainless steel；Heater strip is netted knot
Structure, correspondence is coated on probe tube outer wall.
Advantageous Effects: (1) arranges filter for installation with filtering smoke, prevents flue dust from entering absorption bottle and surveys the escaping of ammonia
Amount result has an impact；(2) utilize heater strip to heat and sampled by temperature controller constant temperature, reducing the NH caused because of temperature factor3
Producing absorption in sampling gun, sampling gun is quartz ampoule material, it is possible to largely reduce NH3Adsorption losses；(3) gas
Being provided with suspended body flowmeter inside catcher, liquid header connects constant flow pump, it is possible to realize accurate absorbing liquid and gasometry
Sampling.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is sampler structural representation.
In figure: a sampler, 1 probe tube, 2 heater strips, 3 metal tubes, 4 quartz filter cottons, 5 filtrations
Device orifice plate, 6 defecators, 7 temperature controllers, 8 impact type absorption bottle second, 9 suspended body flowmeters, 10 gas collectors,
11 liquid headers, 12 constant flow pumps, 13 be connecting tube, 14 for impact type absorption bottle first, 15 be temperature sensing device.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, specific embodiment of the utility model is described in further detail:
A kind of portable the escaping of ammonia chemical absorbing sampling apparatus, sees Fig. 1-2: include sampler a and quantitative collection dress
Putting, sampler includes probe tube 1 and defecator 6, and probe tube 1 is made for quartz material, and its outer wall is socketed with metal tube 3,
Metal tube 3 corresponding heater strip 2 direct with probe tube 1, defecator 6 correspondence is assemblied in probe tube 1 end；
Probe tube 1 has quantitative collection device, described quantitative collection device to include two phases by connecting tube 13 corresponding connection
The impact type absorption bottle first 14 connected mutually and impact type absorption bottle second 8, gas collector 10 and liquid header 11, liquid is collected
Device 11 sample tap connects constant flow pump 12, and described constant flow pump 12 entrance is stretched into bottom two impact type absorption bottles by connecting tube 13；
Gas collector 10 is connected to impact type absorption bottle second 8 inner chamber by connecting tube 13, and described impact type absorption bottle first 14 is by even
Adapter 13 connects probe tube 1, and gas collector 10 is internal is provided with suspended body flowmeter 9 and air pump.
Preferably, the temperature sensing device 15 of its inwall of conflicting, heater strip 2 and temperature sensing device it are provided with in probe tube 1
15 correspondences are connected on temperature controller 7；Fill absorbing liquid in impact type absorption bottle, two impact type absorption bottle inlet ends stretch into liquid level it
Under, outlet side is positioned on liquid level；Defecator 6 inner chamber is provided with quartz filter cotton 4, and defecator 6 end is provided with corresponding quartz
Filter cotton 4 filter orifice plate 5；Metal tube 3 is fixedly connected on probe tube 1 by corner support, and metal tube 3 is stainless steel
Matter；Heater strip 2 is network structure, and correspondence is coated on probe tube 1 outer wall.
Probe tube 1 and defecator 6 are threaded, and the specification of defecator 6 is according to flue gas flow rate big in flue
Little choosing, defecator 6 inner chamber is packed with the silica wool of filtering smoke, it is possible to effectively filter flue dust；Sampler
For double-decker, sampler is heated by electrical heating wire 2, and temperature controller 7 connects temperature sensing device 15, can realize temperature
Degree sets, temperature automatically controlled function, and the flue gas of boiler is bled entrance through air extractor after being heated to uniform temperature in quartz ampoule
To equipped with in the impact type absorption bottle of absorbing liquid；Sampling flow, sampling time can set within the specific limits, the front temperature of meter,
Before meter, pressure can directly read gas collector 10 by air pump and 9 flue gases set of suspended body flowmeter by device
Volume sucks in impact type absorption bottle and reacts, it is achieved the fixing quantity of GAS ABSORPTION；Inhaled from impact type by constant flow pump 12
Received and bottle is transferred in liquid header 11 absorbing liquid accurately, it is achieved absorbing liquid fixing quantity.
The above, be only preferred embodiment of the present utility model, not make technical scope of the present utility model
Go out any restriction, thus every according to technical spirit of the present utility model, above example is made any trickle amendment, equivalent
Change and modification, all still fall within the range of the technical solution of the utility model.
Claims (6)
1. a portable the escaping of ammonia chemical absorbing sampling apparatus, including sampler and quantitative collection device, is characterized in that: take
Sampling device includes probe tube and defecator, and probe tube is that quartz material is made, and its outer wall is socketed with metal tube, metal tube with take
Sample pipe directly corresponding heater strip, defecator correspondence is assemblied in probe tube end；
Probe tube connected by connecting tube correspondence have quantitative collection device, described quantitative collection device to include two are serially connected
Impact type absorption bottle first and impact type absorption bottle second, gas collector and liquid header, liquid header sample tap connects to be had
Constant flow pump, described constant flow pump entrance is stretched into bottom two impact type absorption bottles by connecting tube；Gas collector is by connecting tube even
Being connected on impact type absorption bottle second inner chamber, described impact type absorption bottle first connects probe tube by connecting tube, inside gas collector
It is provided with suspended body flowmeter and air pump.
Portable the escaping of ammonia chemical absorbing sampling apparatus the most according to claim 1, is characterized in that: be provided with in probe tube to
Touching the temperature sensing device of its inwall, heater strip is corresponding with temperature sensing device to be connected on temperature controller.
Portable the escaping of ammonia chemical absorbing sampling apparatus the most according to claim 1, is characterized in that: in impact type absorption bottle
Filling absorbing liquid, two impact type absorption bottle inlet ends stretch under liquid level, and outlet side is positioned on liquid level.
Portable the escaping of ammonia chemical absorbing sampling apparatus the most according to claim 1, is characterized in that: defecator inner chamber sets
Quartzy filter cotton, defecator end is had to be provided with corresponding quartz filter cotton filter orifice plate.
Portable the escaping of ammonia chemical absorbing sampling apparatus the most according to claim 1, is characterized in that: metal tube passes through corner
Support is fixedly connected on probe tube, and metal tube is stainless steel.
Portable the escaping of ammonia chemical absorbing sampling apparatus the most according to claim 1, is characterized in that: heater strip is netted knot
Structure, correspondence is coated on probe tube outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664098.5U CN205844030U (en) | 2016-06-29 | 2016-06-29 | Portable the escaping of ammonia chemical absorbing sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664098.5U CN205844030U (en) | 2016-06-29 | 2016-06-29 | Portable the escaping of ammonia chemical absorbing sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205844030U true CN205844030U (en) | 2016-12-28 |
Family
ID=57621935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620664098.5U Expired - Fee Related CN205844030U (en) | 2016-06-29 | 2016-06-29 | Portable the escaping of ammonia chemical absorbing sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205844030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813581A (en) * | 2019-02-14 | 2019-05-28 | 北京源深节能技术有限责任公司 | The mobile semi-automatic sampling car of chemical method the escaping of ammonia |
| CN110398398A (en) * | 2019-07-10 | 2019-11-01 | 东南大学 | A kind of the classification sampling system and method for the emission intensity suitable for high-humidity gas fume |
-
2016
- 2016-06-29 CN CN201620664098.5U patent/CN205844030U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813581A (en) * | 2019-02-14 | 2019-05-28 | 北京源深节能技术有限责任公司 | The mobile semi-automatic sampling car of chemical method the escaping of ammonia |
| CN109813581B (en) * | 2019-02-14 | 2024-02-02 | 北京京能科技有限公司 | Movable semi-automatic sampling vehicle for ammonia escape by chemical method |
| CN110398398A (en) * | 2019-07-10 | 2019-11-01 | 东南大学 | A kind of the classification sampling system and method for the emission intensity suitable for high-humidity gas fume |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |