CN204649706U - A kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument - Google Patents
A kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument Download PDFInfo
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- CN204649706U CN204649706U CN201520141511.5U CN201520141511U CN204649706U CN 204649706 U CN204649706 U CN 204649706U CN 201520141511 U CN201520141511 U CN 201520141511U CN 204649706 U CN204649706 U CN 204649706U
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- gas
- analysis instrument
- ammonia
- calibrating
- flue gas
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Abstract
The utility model discloses a kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument by relative set for exporting N
2first calibrating gas bottle of calibrating gas, for exporting NH
3standard Gases and O
2second calibrating gas bottle of Standard Gases, for exporting the 3rd calibrating gas bottle of NO Standard Gases and adopting gas mixer and multiple flowmeter control NO Standard Gases and NH
3the delivery rate of Standard Gases, makes NO and NH
3chemical formula 4NO+4NH is pressed in high-temperature heating case
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O, then by the flue gas analysis instrument checking theoretical value of NO, actual value and NH
3theoretical value, actual value.Thus judge that flue gas analysis instrument detects NH
3accuracy.This escaping of ammonia correcting device being applied to flue gas analysis instrument has the advantage that structure is simple, calibration is accurate and simple to operate.
Description
Technical field
The utility model relates to flue gas analysis instrument, specifically relates to a kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument.
Background technology
China take coal as the developing country of main energy sources, and at present in the electric supply structure of China, coal fired power generation still accounts for more than 75% of electric power total amount, owing to giving off after coal burning as pollutants such as sulfide, oxides of nitrogen, carbon dioxide, dust.Therefore thermal power plant has become one of main source of atmospheric pollution of China.A large amount of pollutants causes the phenomenons such as acid rain in some areas, and ecologic environment in serious harm, also makes a big impact in the world.Wherein, oxides of nitrogen except causing acid rain together with other compounds, brings irreversible consequence outside to soil and aquatic ecosystem to the pollution of atmospheric environment, is also subject to people's attention because they participate in the generation of photo-chemical smog.Prevent from boiler, after coal combustion, producing too much nitrogen oxides pollution environment, remove the oxides of nitrogen in combustion product gases by out of stock method.
The ammonia (NH3) having neither part nor lot in reaction in out of stock reaction tower exiting flue gas is called the escaping of ammonia, and the escaping of ammonia easily causes waste and the environmental pollution of fund; Further, the escaping of ammonia will corrode catalyst module, cause catalyst deactivation (namely losing efficacy) and blocking, greatly shorten catalyst life; In addition, the ammonia of escape can generate sulfate of ammoniac salt (having corrosivity and cohesiveness) with the sulfuric anhydride in air makes the air preheater accumulation of heat original paper being positioned at out of stock downstream block or corrode, and therefore, the Concentration Testing of escape ammonia is extremely important.
Flue gas analyzer (as HORIBA ENDA-2430) can be used for the oxides of nitrogen discharged in online Fire Monitoring power plant flue, the concentration of the gas such as ammonia and oxygen.At the oxides of nitrogen of flue gas analyzer monitoring, in the gas such as ammonia and oxygen, the accuracy of oxides of nitrogen and oxygen concentration is monitored by gas checking flue gas analyzer, but, also lack the equipment and method that effectively can calibrate flue gas analyzer monitoring ammonia concentration accuracy at present.
Utility model content
In order to solve the problem, the purpose of this utility model is to provide a kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument.
In order to achieve the above object, the utility model have employed following technical scheme:
Be applied to a escaping of ammonia correcting device for flue gas analysis instrument, there is such feature, comprising: for exporting N
2first calibrating gas bottle of calibrating gas; For exporting NH
3standard Gases and O
2second calibrating gas bottle of Standard Gases; By N
2calibrating gas, NH
3standard Gases and O
2the first gas mixer that the first mixed gas exports is formed after Standard Gases mixing; For exporting the 3rd calibrating gas bottle of NO Standard Gases; And the first mixed gas and NO Standard Gases mixed further the second gas mixer that rear formation second mixed gas exports; Wherein, the second mixed gas in the second gas mixer is divided into through threeway the NO that two-way exports flue gas analysis instrument respectively to
xsense channel and high-temperature heating case, and, export the NO of flue gas analysis instrument after flowing through the second mixed gas generation chemical reaction of high-temperature heating case to
x-NH
3sense channel; First calibrating gas bottle be provided with first-class gauge with the connecting line of the first gas mixer, the connecting line of the second calibrating gas bottle and the first gas mixer is provided with second gauge, the connecting line of the first gas mixer and the second gas mixer is provided with the 3rd flowmeter, the connecting line of the 3rd calibrating gas bottle and the second gas mixer is provided with the 4th flowmeter, and the connecting line of the second gas mixer and threeway is provided with the 5th flowmeter.
Further, what provide at the utility model is applied in the escaping of ammonia correcting device of flue gas analysis instrument, can also have such feature: high-temperature heating case stores successively along the circulation path of the second mixed gas: high-temperature heating pipe and catalyst tube.
Further, what provide at the utility model is applied in the escaping of ammonia correcting device of flue gas analysis instrument, can also have such feature: high-temperature heating pipe is spiral tube structure.
Further, what provide at the utility model is applied in the escaping of ammonia correcting device of flue gas analysis instrument, can also have such feature: the N storing 999999ppm in the first calibrating gas bottle
2.
Further, what provide at the utility model is applied in the escaping of ammonia correcting device of flue gas analysis instrument, can also have such feature: the NH storing 9.8ppm in the second calibrating gas bottle
3, 60300ppm O
2, and the N of 939690.2ppm
2.
Further, what provide at the utility model is applied in the escaping of ammonia correcting device of flue gas analysis instrument, can also have such feature: the O storing NO and 999733ppm of 267ppm in the 3rd calibrating gas bottle
2.
The good effect that the utility model has on the basis of the above is:
The escaping of ammonia correcting device of flue gas analysis instrument that what the utility model provided be applied to by relative set for exporting N
2first calibrating gas bottle of calibrating gas, for exporting NH
3standard Gases and O
2second calibrating gas bottle of Standard Gases, for exporting the 3rd calibrating gas bottle of NO Standard Gases and adopting gas mixer and multiple flowmeter control NO Standard Gases and NH
3the delivery rate of Standard Gases, makes NO and NH
3chemical formula 4NO+4NH is pressed in high-temperature heating case
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O, then by the flue gas analysis instrument checking theoretical value of NO, actual value and NH
3theoretical value, actual value.Thus judge that flue gas analysis instrument detects NH
3accuracy.This escaping of ammonia correcting device being applied to flue gas analysis instrument has the advantage that structure is simple, calibration is accurate and simple to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the escaping of ammonia correcting device being applied to flue gas analysis instrument in embodiment of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reach object and effect is easy to understand, following examples are specifically addressed the escaping of ammonia correcting device being applied to flue gas analysis instrument that the utility model provides by reference to the accompanying drawings.
As shown in Figure 1, the escaping of ammonia correcting device of flue gas analysis instrument that what the present embodiment provided be applied to comprises: the first calibrating gas bottle 1, second calibrating gas bottle the 2, three calibrating gas bottle 3, first gas mixer 4, second gas mixer 5, first-class gauge 6, second gauge 7,3rd flowmeter 8,4th flowmeter the 9, five flowmeter 10, and high-temperature heating case 11.
Concrete, the first calibrating gas bottle 1 is for exporting N
2calibrating gas, and, store the N of 999999ppm in this first calibrating gas bottle 1
2.
Second calibrating gas bottle 2 is for exporting NH
3standard Gases and O
2standard Gases, and, store the NH of 9.8ppm in this second calibrating gas bottle 2
3, 60300ppm O
2, and the N of 939690.2ppm
2.
3rd calibrating gas bottle 3, for exporting NO Standard Gases, stores the O of NO and 999733ppm of 267ppm in the 3rd calibrating gas bottle 3
2.
First gas mixer 4 is for by N
2calibrating gas, NH
3standard Gases and O
2form the first mixed gas after Standard Gases mixing to export; Second gas mixer 5 exports for the first mixed gas and NO Standard Gases being mixed further rear formation second mixed gas.
Wherein, the second mixed gas in the second gas mixer 5 is divided into through threeway 12 NO that two-way exports flue gas analysis instrument respectively to
xsense channel and high-temperature heating case 11, and, export the NO of flue gas analysis instrument after flowing through the second mixed gas generation chemical reaction of high-temperature heating case 11 to
x-NH
3sense channel;
In addition, the first calibrating gas bottle 1 be provided with first-class gauge 6 with the connecting line of the first gas mixer 4, by the adjustable control N of first-class gauge 6
2the delivery rate of calibrating gas.The connecting line of first-class gauge 6 second calibrating gas bottle 2 and the first gas mixer 4 is provided with second gauge 7, by the adjustable control NH of second gauge 7
3standard Gases and O
2the delivery rate of Standard Gases.The connecting line of the first gas mixer 4 and the second gas mixer 5 is provided with the 3rd flowmeter 8, and the delivery rate of the first mixed gas controls at 1L/min by the 3rd flowmeter 8.The connecting line of the 3rd calibrating gas bottle 3 and the second gas mixer 5 is provided with the 4th flowmeter the 9, four flowmeter 9 and controls the delivery rate of NO Standard Gases at 1L/min.The connecting line of the second gas mixer 5 and threeway is provided with the 5th flowmeter the 10, five flowmeter 10 and can verifies whether the delivery rate of the second mixed gas that the second gas mixer 5 exports remains on 2L/min.
High-temperature heating case 11 stores successively along the circulation path of the second mixed gas: high-temperature heating pipe 111 and catalyst tube 112.In this fact Example, high-temperature heating pipe 111 is spiral tube structure, and catalyst tube 112 is built-in with and accelerates NO and NH
3the catalyzer reacted.High-temperature heating case 11 can ensure NO and NH
3chemical formula 4NO+4NH is pressed under 350 DEG C of environment
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O.
At NO and NH
3in the process reacted, the reduction of NO is NH
3reduction, then by the theoretical value of flue gas analysis instrument authentication NO, actual value and NH
3theoretical value, actual value.Thus judge that flue gas analysis instrument detects NH
3accuracy.In the present embodiment, NO theoretical value=(O
2standard value-O
2measured value)/O
2standard Gases × NO standard value, NH
3theoretical value=(O
2measured value/O
2standard value) × NH
3standard value.
Table one is the test figure that the escaping of ammonia calibration test for several times obtains, wherein, and NO, NH
3, and O
2unit be ppm.
Table one
The escaping of ammonia correcting device of flue gas analysis instrument that what the present embodiment provided be applied to by relative set for exporting N
2first calibrating gas bottle of calibrating gas, for exporting NH
3standard Gases and O
2second calibrating gas bottle of Standard Gases, for exporting the 3rd calibrating gas bottle of NO Standard Gases and adopting gas mixer and multiple flowmeter control NO Standard Gases and NH
3the delivery rate of Standard Gases, makes NO and NH
3chemical formula 4NO+4NH is pressed in high-temperature heating case
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O, then by the flue gas analysis instrument checking theoretical value of NO, actual value and NH
3theoretical value, actual value.Thus judge that flue gas analysis instrument detects NH
3accuracy.This escaping of ammonia correcting device being applied to flue gas analysis instrument has the advantage that structure is simple, calibration is accurate and simple to operate.
Certainly, the escaping of ammonia correcting device being applied to flue gas analysis instrument involved by the utility model is not merely defined in the structure in the present embodiment, any equivalent modifications of carrying out the utility model and substituting also all in category of the present utility model.
Claims (6)
1. be applied to a escaping of ammonia correcting device for flue gas analysis instrument, it is characterized in that, comprising:
For exporting N
2first calibrating gas bottle of calibrating gas;
For exporting NH
3standard Gases and O
2second calibrating gas bottle of Standard Gases;
By described N
2calibrating gas, described NH
3standard Gases and described O
2the first gas mixer that the first mixed gas exports is formed after Standard Gases mixing;
For exporting the 3rd calibrating gas bottle of NO Standard Gases; And
Described first mixed gas and described NO Standard Gases are mixed further the second gas mixer that rear formation second mixed gas exports;
Wherein, the second mixed gas in described second gas mixer is divided into through threeway the NO that two-way exports flue gas analysis instrument respectively to
xsense channel and high-temperature heating case, and, export the NO of described flue gas analysis instrument after flowing through the second mixed gas generation chemical reaction of described high-temperature heating case to
x-NH
3sense channel;
Described first calibrating gas bottle be provided with first-class gauge with the connecting line of described first gas mixer, the connecting line of described second calibrating gas bottle and described first gas mixer is provided with second gauge, the connecting line of described first gas mixer and described second gas mixer is provided with the 3rd flowmeter, the connecting line of described 3rd calibrating gas bottle and described second gas mixer is provided with the 4th flowmeter, and the connecting line of described second gas mixer and described threeway is provided with the 5th flowmeter.
2. the escaping of ammonia correcting device being applied to flue gas analysis instrument according to claim 1, is characterized in that:
Described high-temperature heating case stores successively along the circulation path of described second mixed gas: high-temperature heating pipe and catalyst tube.
3. the escaping of ammonia correcting device being applied to flue gas analysis instrument according to claim 2, is characterized in that:
Described high-temperature heating pipe is spiral tube structure.
4. the escaping of ammonia correcting device being applied to flue gas analysis instrument according to claim 1, is characterized in that:
The N of 999999ppm is stored in described first calibrating gas bottle
2.
5. the escaping of ammonia correcting device being applied to flue gas analysis instrument according to claim 1, is characterized in that:
The NH of 9.8ppm is stored in described second calibrating gas bottle
3, 60300ppm O
2, and the N of 939690.2ppm
2.
6. the escaping of ammonia correcting device being applied to flue gas analysis instrument according to claim 1, is characterized in that:
The O of NO and 999733ppm of 267ppm is stored in described 3rd calibrating gas bottle
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141511.5U CN204649706U (en) | 2015-03-12 | 2015-03-12 | A kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141511.5U CN204649706U (en) | 2015-03-12 | 2015-03-12 | A kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204649706U true CN204649706U (en) | 2015-09-16 |
Family
ID=54102442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520141511.5U Expired - Fee Related CN204649706U (en) | 2015-03-12 | 2015-03-12 | A kind of the escaping of ammonia correcting device being applied to flue gas analysis instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204649706U (en) |
-
2015
- 2015-03-12 CN CN201520141511.5U patent/CN204649706U/en not_active Expired - Fee Related
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|---|---|---|---|
| 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: 20150916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |