CN204911211U - Measurement distribution module - Google Patents
Measurement distribution module Download PDFInfo
- Publication number
- CN204911211U CN204911211U CN201520419364.3U CN201520419364U CN204911211U CN 204911211 U CN204911211 U CN 204911211U CN 201520419364 U CN201520419364 U CN 201520419364U CN 204911211 U CN204911211 U CN 204911211U
- Authority
- CN
- China
- Prior art keywords
- ball valve
- distribution module
- flue gas
- nozzle
- reducing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a measurement distribution module, include: a measurement distribution module control system, a urea solution processing system, a demineralized water rinse -system, a compress air system, a return -flow system and flue gas denitration reductant preparation system nozzle, just urea solution processing system the demineralized water rinse -system reaches compress air system all with flue gas denitration reductant preparation system nozzle intercommunication, just measurement distribution module control system connection control urea solution processing system, demineralized water rinse -system and compress air system reach the return -flow system. The utility model has the advantages that: realize that the spray gun passes through flue gas denitration reductant preparation system nozzle and sprays urea solution as required in to the stove, atomize to urea solution simultaneously, make the quilt under high temperature that it can be more thorough decomposed.
Description
Technical field
The utility model relates to a kind of metering distribution module.
Background technology
In denitrating flue gas field, SCR (SCR) and non-selective catalytic reduction (SNCR) two kinds of methods are widely applied.These two kinds of methods all with NH3 etc. for reducing agent, SNCR method sprays in the middle of the flue gas of 850 ~ 1150 DEG C by the reducing agent such as ammonia or the urea aqueous solution, realizes the reduction reaction of NOx.SCR method be by liquefied ammonia evaporation be diluted to 5% volumetric concentration after spray into SCR reactor by ammonia-spraying grid.Consider transport and on-the-spot safety problem, domesticly bring into use urea pyrolysis ammonia gradually.Compare SNCR, the escaping of ammonia of SCR requires stricter, and the more accurate ammonia therefore needed sprays into and is atomized.
Utility model content
The purpose of this utility model is to provide a kind of metering distribution module, and it can solve above-mentioned shortcoming of the prior art.
The utility model is by the following technical solutions:
A kind of metering distribution module, comprise: a metering distribution module control system, one urea liquid treatment system, one demineralized water rinse-system, one compressed air system, one return-flow system and a denitrating flue gas reducing agent preparation system nozzle, and described urea liquid treatment system, described demineralized water rinse-system and described compressed air system and described return-flow system are all communicated with described denitrating flue gas reducing agent preparation system nozzle, and urea liquid treatment system described in described metering distribution module control system connection control, demineralized water rinse-system and compressed air system and described return-flow system.
One the 21 ball valve, one the 23 ball valve, one the 24 electrical ball valve, one the 25 check-valves, one the 26 control valve, one the 27 flowmeter is provided with successively between described urea liquid treatment system and described denitrating flue gas reducing agent preparation system nozzle.
One the 31 ball valve, one the 33 ball valve, one the 35 electrical ball valve, one the 36 check-valves, one the 26 control valve and one the 27 flowmeter is provided with successively between described demineralized water rinse-system and described denitrating flue gas reducing agent preparation system nozzle.
One the 41 ball valve, one the 4th tow filtrator, one the 44 bypass ball valve, one the 46 electrical ball valve, one the 47 ball valve and one the 48 pressure-regulating valve and one the 49 flowmeter is provided with successively between described compressed air system and described denitrating flue gas reducing agent preparation system nozzle.
One the 21 ball valve, one the 32 ball valve, one the 45 ball valve is provided with successively between described return-flow system and described denitrating flue gas reducing agent preparation system nozzle.
Also comprise one the 40 ball valve, its one end is connected between one the 42 ball valve and one the 43 ball valve, and the other end is connected with described denitrating flue gas reducing agent preparation system nozzle.
The utility model has the advantages that: realize spray gun by denitrating flue gas reducing agent preparation system nozzle to need based jet urea liquid in pyrolysis oven, urea liquid is atomized simultaneously, can be more thoroughly at high temperature decomposed.Control precisely, the reaction of real-time response Denitration in Boiler need ammonia requirement, substantially increase reaction speed and shorten the reaction time.By return-flow system unnecessary urea liquid return pipeline system, compressed air system is compressed air system, operationally run with urea liquid treatment system simultaneously, ensure that urea liquid is atomized into droplet through spray tip, can sealing air be provided when spray gun overhauls simultaneously, prevent high-temperature gas from spraying outward; Demineralized water rinse-system is flushing water system, is rinsed, prevent urea liquid to be deposited in pipeline and cause crystallization in spray gun maintenance or when stopping transport by demineralized water rinse-system 3 pairs of spray guns.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail, wherein:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Detailed description of the invention of the present utility model is set forth further below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of metering distribution module, comprise: a metering distribution module control system 1, one urea liquid treatment system 2, one demineralized water rinse-system 3, one compressed air system 4, one return-flow system 5 and a denitrating flue gas reducing agent preparation system nozzle 6, and described urea liquid treatment system, described demineralized water rinse-system and described compressed air system and described return-flow system are all communicated with described denitrating flue gas reducing agent preparation system nozzle, and urea liquid treatment system described in described metering distribution module control system connection control, demineralized water rinse-system and compressed air system and described return-flow system.
One the 21 ball valve 21, the 23 ball valve 23, the 24 motor-driven valve 24, the 25 check-valves 25, the 26 control valve 26, the 27 flowmeter 27 is provided with successively between described urea liquid treatment system and described denitrating flue gas reducing agent preparation system nozzle.
One the 31 ball valve 31, the 33 ball valve 33, the 35 electrical ball valve 35, the 36 check-valves 36, the 26 control valve 26 and one the 27 flowmeter 27 is provided with successively between described demineralized water rinse-system and described denitrating flue gas reducing agent preparation system nozzle.
One the 41 ball valve 41, the 4th tow filtrator 42, the 44 bypass ball valve 44, the 46 electrical ball valve 46, the 47 ball valve 47 and one the 48 pressure-regulating valve 48 and one the 49 flowmeter 49 is provided with successively between described compressed air system and described denitrating flue gas reducing agent preparation system nozzle.
Described return-flow system is a reflux line, and is provided with one the 21 ball valve 21, the 32 ball valve 32, the 45 ball valve 45 between described reflux line and described denitrating flue gas reducing agent preparation system nozzle successively.
The utility model also comprises one the 44 choke valve 44, and it is parallel to the two ends of described four or six ball valve 46.
The utility model also comprises one the 40 ball valve 49, and its one end is connected between described four or two ball valve 42 and described four or three ball valve 43, and the other end is connected with described denitrating flue gas reducing agent preparation system nozzle.
The utility model relates to a kind of metering distribution module, prepared by the reducing agent for the denitrating flue gas in power plant.The utility model is by utilizing metering distribution module control system by accepting the control of DCS signal to the two or two ball valve the 22, the 26 control valve the 26, the 27 flowmeter the 27, the 46 ball valve the 46, the 49 ball valve 49, realize spray gun by denitrating flue gas reducing agent preparation system nozzle 6 to need based jet urea liquid in stove, urea liquid is atomized simultaneously, can be more thoroughly at high temperature decomposed.Control precisely, the reaction of real-time response Denitration in Boiler need ammonia requirement, substantially increase reaction speed and shorten the reaction time.By return-flow system unnecessary urea liquid return pipeline system.Compressed air system 4 is compressed air system, operationally runs with urea liquid treatment system 2 simultaneously, ensures that urea liquid is atomized into droplet through spray tip, can provide sealing air simultaneously, prevent high-temperature gas from spraying outward when spray gun overhauls; Demineralized water rinse-system 3 is flushing water system, is rinsed, prevent urea liquid to be deposited in pipeline and cause crystallization in spray gun maintenance or when stopping transport by demineralized water rinse-system 3 pairs of spray guns.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a metering distribution module, it is characterized in that, comprise: a metering distribution module control system, one urea liquid treatment system, one demineralized water rinse-system, one compressed air system, one return-flow system and a denitrating flue gas reducing agent preparation system nozzle, and described urea liquid treatment system, described demineralized water rinse-system and described compressed air system and described return-flow system are all communicated with described denitrating flue gas reducing agent preparation system nozzle, and urea liquid treatment system described in described metering distribution module control system connection control, demineralized water rinse-system and compressed air system and described return-flow system.
2. metering distribution module according to claim 1, it is characterized in that, between described urea liquid treatment system and described denitrating flue gas reducing agent preparation system nozzle, be provided with one the 21 ball valve, one the 23 ball valve, one the 24 electrical ball valve, one the 25 check-valves, one the 26 control valve, one the 27 flowmeter successively.
3. metering distribution module according to claim 2, it is characterized in that, between described demineralized water rinse-system and described denitrating flue gas reducing agent preparation system nozzle, be provided with one the 31 ball valve, one the 33 ball valve, one the 35 electrical ball valve, one the 36 check-valves, one the 26 control valve and one the 27 flowmeter successively.
4. metering distribution module according to claim 3, it is characterized in that, between described compressed air system and described denitrating flue gas reducing agent preparation system nozzle, be provided with one the 41 ball valve, one the 4th tow filtrator, one the 44 bypass ball valve, one the 46 electrical ball valve, one the 47 ball valve and one the 48 pressure-regulating valve and one the 49 flowmeter successively.
5. metering distribution module according to claim 4, is characterized in that, described return-flow system is provided with one the 21 ball valve, one the 32 valve, one the 45 ball valve successively.
6. metering distribution module according to claim 5, is characterized in that, also comprises one the 40 ball valve, and its one end is connected between one the 42 ball valve and one the 43 ball valve, and the other end is connected with described denitrating flue gas reducing agent preparation system nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419364.3U CN204911211U (en) | 2015-06-17 | 2015-06-17 | Measurement distribution module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419364.3U CN204911211U (en) | 2015-06-17 | 2015-06-17 | Measurement distribution module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204911211U true CN204911211U (en) | 2015-12-30 |
Family
ID=54960397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520419364.3U Expired - Fee Related CN204911211U (en) | 2015-06-17 | 2015-06-17 | Measurement distribution module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204911211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108159869A (en) * | 2018-01-15 | 2018-06-15 | 中国华电科工集团有限公司 | Flue gas denitrification system urea measuring and injecting device and method |
| CN109045984A (en) * | 2017-08-01 | 2018-12-21 | 广州金牛脱硝技术开发有限公司 | A kind of stove denitration on-line dilution metered dispensing unit |
-
2015
- 2015-06-17 CN CN201520419364.3U patent/CN204911211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045984A (en) * | 2017-08-01 | 2018-12-21 | 广州金牛脱硝技术开发有限公司 | A kind of stove denitration on-line dilution metered dispensing unit |
| CN108159869A (en) * | 2018-01-15 | 2018-06-15 | 中国华电科工集团有限公司 | Flue gas denitrification system urea measuring and injecting device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202700347U (en) | Smoke selective non-catalytic reduction (SNCR) denitration complete plant | |
| CN205392185U (en) | Gas boiler catalytic denitrification system | |
| CN204017667U (en) | A kind of Novel SCR denitrating system | |
| CN202100308U (en) | Selective catalytic reduction (SCR) system for urea solution metering injection | |
| CN203971726U (en) | SNCR equipment for denitrifying flue gas | |
| CN107261837A (en) | It is a kind of to quote denitrification apparatus and technique that high-temperature flue gas carries out urea pyrolysis ammonia | |
| CN209637852U (en) | It is a kind of using liquefied ammonia be SCR reducing agent exhaust emissions of diesel engine cleaning treatment system | |
| CN104548931A (en) | Device for producing ammonia gas through pyrolysis of urea by using high-temperature flue gas as heat source | |
| CN104587830A (en) | Urea solution intra-flue direct injection pyrolysis device and method with SCR (Selective Catalytic Reduction) system | |
| CN204911211U (en) | Measurement distribution module | |
| CN204656318U (en) | A kind of boiler flue gas denitration system | |
| CN202844886U (en) | Direct ammonia water injection type flue gas denitration device for waste heat boiler | |
| CN204352751U (en) | The SNCR denitration device of the compatible ammoniacal liquor of a kind of urea | |
| CN202844862U (en) | Smoke denitration device | |
| CN202921160U (en) | SNCR (selective non-catalytic reduction) flue gas denitration system | |
| CN206965521U (en) | A kind of denitrification apparatus quoted high-temperature flue gas and carry out urea pyrolysis ammonia | |
| CN103437867A (en) | Aerodynamic ammonia gas preparation and quantitative injection system | |
| CN203532017U (en) | Aerodynamic ammonia gas manufacturing and quantitative injection system | |
| CN204637957U (en) | A kind of equipment for denitrifying flue gas | |
| CN203525562U (en) | Selective non-catalytic reduction (SNCR) denitration device | |
| CN204543971U (en) | A kind of SNCR denitration device | |
| CN203886401U (en) | Boiler flue gas denitration system adopting SCR process | |
| CN206965500U (en) | Fire coal boiler fume denitrating system | |
| CN203389534U (en) | Selective catalytic reduction (SCR) flue gas denitrification device | |
| CN204469547U (en) | A kind of high-temperature flue gas that adopts is as the urea pyrolysis ammonia device of thermal source |
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: 20151230 Termination date: 20200617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |