CN204495802U - A kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment - Google Patents
A kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment Download PDFInfo
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- CN204495802U CN204495802U CN201520141512.XU CN201520141512U CN204495802U CN 204495802 U CN204495802 U CN 204495802U CN 201520141512 U CN201520141512 U CN 201520141512U CN 204495802 U CN204495802 U CN 204495802U
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- ammonia
- escaping
- spiral type
- heating arrangement
- calibration equipment
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Abstract
The utility model discloses a kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment, comprising: the spiral type heated pipe that standard sample gas is heated; Described standard sample gas is introduced the draft tube of described spiral type heated pipe; Accelerate the catalyst tube that in described standard sample gas, ammonia and nitrogen monoxide fully react; And for gas after reaction is exported to the escape pipe of flue gas analysis instrument; Wherein, described draft tube, described spiral type heated pipe, described catalyst tube and described escape pipe set gradually along gas flowing path; Further, the outer race of described catalyst tube and described spiral type heated pipe is equipped with heater incubator.This heating arrangement makes ammonia and nitrogen monoxide in high-temperature heating case by chemical formula 4NO+4NH
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O, thus is convenient to the escaping of ammonia Measurement and calibration to flue gas analysis instrument.
Description
Technical field
The utility model relates to the escaping of ammonia Measurement and calibration equipment, specifically relates to a kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment.
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, monitor the accuracy of oxides of nitrogen and oxygen concentration by gas checking flue gas analyzer, but gas effectively cannot calibrate the accuracy of flue gas analyzer monitoring ammonia concentration.
Utility model content
In order to solve the problem, the purpose of this utility model is to provide a kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment.
In order to achieve the above object, the utility model have employed following technical scheme:
Be applied to a heating arrangement for the escaping of ammonia Measurement and calibration equipment, there is such feature, comprising: the spiral type heated pipe that standard sample gas is heated; Standard sample gas is introduced the draft tube of spiral type heated pipe; Accelerate the catalyst tube that in standard sample gas, ammonia and nitrogen monoxide fully react; And for gas after reaction is exported to the escape pipe of flue gas analysis instrument; Wherein, draft tube, spiral type heated pipe, catalyst tube and escape pipe set gradually along gas flowing path; Further, the outer race of catalyst tube and spiral type heated pipe is equipped with heater incubator.
Further, what provide at the utility model is applied in the heating arrangement of the escaping of ammonia Measurement and calibration equipment, such feature can also be had: draft tube is connected with spiral type heated pipe after running through a sidewall of heater incubator, further, draft tube is arranged on the sidewall of heater incubator by tracheae holder.
Further, what provide at the utility model is applied in the heating arrangement of the escaping of ammonia Measurement and calibration equipment, such feature can also be had: escape pipe is connected with catalyst tube after running through a sidewall of heater incubator, further, escape pipe is arranged on the sidewall of heater incubator by tracheae holder.
Further, what provide at the utility model is applied in the heating arrangement of the escaping of ammonia Measurement and calibration equipment, can also have such feature: draft tube and escape pipe run through the same sidewall of heater incubator.
Further, what provide at the utility model is applied in the heating arrangement of the escaping of ammonia Measurement and calibration equipment, can also have such feature: spiral type heated pipe and catalyst tube are by the first Flange joint.
Further, what provide at the utility model is applied in the heating arrangement of the escaping of ammonia Measurement and calibration equipment, can also have such feature: catalyst tube is connected by the second flange and three-flange with escape pipe.
The good effect that the utility model has on the basis of the above is:
The heating arrangement of what the utility model provided be applied to the escaping of ammonia Measurement and calibration equipment.The standard oxygen being mixed with ammonia, nitrogen monoxide and oxygen is introduced in high-temperature heating case and also flows through spiral type heated pipe and catalyst tube successively, first standard oxygen is heated to by spiral type heated pipe the applicable temperature that applicable ammonia and nitrogen monoxide react, accelerate ammonia and nitrogen monoxide reaction by the catalyzer in catalyst tube again, thus make ammonia and nitrogen monoxide in high-temperature heating case by chemical formula 4NO+4NH
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O, thus is convenient to the escaping of ammonia Measurement and calibration to flue gas analysis instrument.
Accompanying drawing explanation
Fig. 1 is the perspective view of the heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment 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 heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment that the utility model provides by reference to the accompanying drawings.
As shown in Figure 1, the heating arrangement that the present embodiment provides is applied to the escaping of ammonia Measurement and calibration equipment, and this heating arrangement comprises: draft tube 1, spiral type heated pipe 2, catalyst tube 3, escape pipe 4 and heater incubator 5.
Concrete, spiral type heated pipe 2 is for being heated to the temperature (as 350 degrees Celsius) of applicable ammonia and nitrogen monoxide generation chemical reaction to standard sample gas.Draft tube 1 will be mixed with the standard sample gas introducing spiral type heated pipe 2 of 10ppm ammonia, 100ppm nitrogen monoxide, 6% oxygen.The catalyst tube 3 being built-in with catalyzer fully reacts for accelerating ammonia and nitrogen monoxide in standard sample gas the nitrogen generating and can be detected by flue gas analysis instrument (not shown).Escape pipe 4 is for exporting to flue gas analysis instrument by reacted mixed gas.
Heater incubator 5 is sleeved on the periphery of catalyst tube 3 and spiral type heated pipe 2, to ensure that the temperature of ammonia and nitrogen monoxide generation chemical reaction maintains 350 degrees centigrade, thus makes ammonia and nitrogen monoxide in high-temperature heating case by chemical formula 4NO+4NH
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O.Nitric oxide production reduction is the reduction of ammonia, then passes through theoretical value, the actual value of the nitric oxide production theoretical value of flue gas analysis instrument authentication, actual value and ammonia.Thus judge that flue gas analysis instrument detects the accuracy of ammonia.
In the present embodiment, draft tube 1, spiral type heated pipe 2, catalyst tube 3 and escape pipe 4 set gradually along gas flowing path, and spiral type heated pipe 2 is connected by the first flange 6 with catalyst tube 3.Catalyst tube 3 is connected by the second flange 7 and three-flange 8 with escape pipe 4.
Concrete, draft tube 1 is connected with spiral type heated pipe 2 after running through a sidewall of heater incubator 5, and draft tube 1 is arranged on the sidewall of heater incubator 5 by tracheae holder 9.Escape pipe 4 is connected with catalyst tube 3 after running through a sidewall of heater incubator 5, and escape pipe 4 is arranged on the sidewall of heater incubator 5 by tracheae holder 10.
As preferential technical scheme, draft tube 1 and escape pipe 4 run through the same sidewall of heater incubator 5.
The heating arrangement for the escaping of ammonia Measurement and calibration equipment that the present embodiment provides.The standard oxygen being mixed with ammonia, nitrogen monoxide and oxygen is introduced in high-temperature heating case and also flows through spiral type heated pipe 2 and catalyst tube 3 successively, first standard oxygen is heated to by spiral type heated pipe 2 the applicable temperature that applicable ammonia and nitrogen monoxide react, accelerate ammonia and nitrogen monoxide reaction by the catalyzer in catalyst tube 3 again, thus make ammonia and nitrogen monoxide in high-temperature heating case by chemical formula 4NO+4NH
3+ O
2→ 4N
2+ 6H
2there is 1:1 reaction in O, in ammonia and nitric oxide production course of reaction, because nitric oxide production reduction is the reduction of ammonia, 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.
Certainly, the heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment 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 heating arrangement for the escaping of ammonia Measurement and calibration equipment, it is characterized in that, comprising:
To the spiral type heated pipe that standard sample gas heats;
Described standard sample gas is introduced the draft tube of described spiral type heated pipe;
Accelerate the catalyst tube that in described standard sample gas, ammonia and nitrogen monoxide fully react; And
For gas after reaction is exported to the escape pipe of flue gas analysis instrument;
Wherein, described draft tube, described spiral type heated pipe, described catalyst tube and described escape pipe set gradually along gas flowing path; Further, the outer race of described catalyst tube and described spiral type heated pipe is equipped with heater incubator.
2. the heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment according to claim 1, is characterized in that:
Be connected with described spiral type heated pipe after described draft tube runs through a sidewall of described heater incubator, and described draft tube is arranged on the sidewall of described heater incubator by tracheae holder.
3. the heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment according to claim 2, is characterized in that:
Described escape pipe is connected with described catalyst tube after running through a sidewall of described heater incubator, and described escape pipe is arranged on the sidewall of described heater incubator by tracheae holder.
4. the heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment according to claim 3, is characterized in that:
Described draft tube and described escape pipe run through the same sidewall of described heater incubator.
5. the heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment according to claim 1, is characterized in that:
Described spiral type heated pipe and described catalyst tube are by the first Flange joint.
6. be applied to the heating arrangement of the escaping of ammonia Measurement and calibration equipment according to claim 1 or 5, it is characterized in that:
Described catalyst tube is connected by the second flange and three-flange with described escape pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141512.XU CN204495802U (en) | 2015-03-12 | 2015-03-12 | A kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141512.XU CN204495802U (en) | 2015-03-12 | 2015-03-12 | A kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495802U true CN204495802U (en) | 2015-07-22 |
Family
ID=53575107
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520141512.XU Expired - Fee Related CN204495802U (en) | 2015-03-12 | 2015-03-12 | A kind of heating arrangement being applied to the escaping of ammonia Measurement and calibration equipment |
Country Status (1)
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|---|---|
| CN (1) | CN204495802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125637A (en) * | 2020-01-10 | 2021-07-16 | 国家能源投资集团有限责任公司 | Device and method for detecting ammonia concentration in flue gas |
-
2015
- 2015-03-12 CN CN201520141512.XU patent/CN204495802U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125637A (en) * | 2020-01-10 | 2021-07-16 | 国家能源投资集团有限责任公司 | Device and method for detecting ammonia concentration in flue gas |
| CN113125637B (en) * | 2020-01-10 | 2024-05-24 | 国家能源投资集团有限责任公司 | Ammonia concentration detection device and ammonia concentration detection method in flue gas |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |