CN203737102U - Distribution and injection module and system for SNCR (Selective Non Catalytic Reduction) flue gas denitrification system - Google Patents
Distribution and injection module and system for SNCR (Selective Non Catalytic Reduction) flue gas denitrification system Download PDFInfo
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- CN203737102U CN203737102U CN201420165058.7U CN201420165058U CN203737102U CN 203737102 U CN203737102 U CN 203737102U CN 201420165058 U CN201420165058 U CN 201420165058U CN 203737102 U CN203737102 U CN 203737102U
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- Prior art keywords
- compressed air
- flue gas
- valve
- gas denitrification
- pressure
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000003546 flue gas Substances 0.000 title claims abstract description 50
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- 238000010531 catalytic reduction reaction Methods 0.000 title abstract 2
- 239000007921 spray Substances 0.000 claims abstract description 51
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 52
- 239000004202 carbamide Substances 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 44
- 230000001681 protective effect Effects 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 210000002700 urine Anatomy 0.000 abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 8
- 238000000889 atomisation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000008896 Opium Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229960001027 opium Drugs 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides a distribution and injection module and system for an SNCR (Selective Non Catalytic Reduction) flue gas denitrification system. The distribution and injection module comprises a compressed air pipeline and a urine solution pipeline which are connected in parallel; the compressed air pipeline and the urine solution pipeline connected in parallel are connected with a spray gun; a first manual valve, a compressed air main valve and a pressure detecting and adjusting device are sequentially arranged on the compressed air pipeline; a compressed air bypass is connected with the compressed air pipeline in parallel; one end of the compressed air bypass is connected onto a pipeline behind the first manual valve and before the compressed air main valve; the other end of the compressed air bypass is connected onto a pipeline behind the compressed air main valve and before the pressure detecting and adjusting device; a bypass valve is arranged on the compressed air bypass. The distribution and injection module provided by the utility model has the benefits that flowing conditions of compressed air and urine solution can be monitored in real time and are adjusted and controlled in time; the corresponding bypass is arranged on the compressed air pipeline; when faults occur or maintenance is required, the compressed air pipeline can be switched to the bypass in time, so that the operation stability of the system is improved.
Description
Technical field
The utility model relates to gas denitrifying technology field, is specifically related to a kind of distribution jet module for SNCR flue gas denitrification system.
Background technology
Nitrogen oxide (NOx) is a kind of common atmosphere pollution, and its discharge capacity presents the trend raising year by year.Conventional discharged nitrous oxides control measure comprise Combustion Process Control and denitrating flue gas at present, in multiple denitration technology, SNCR (SNCR) technology, as one wherein, has the transformation of installing feature simple, with low cost, is more and more applied.
The principle of SNCR technology is the region that ammonia reducing agent is sprayed into 850～1050 DEG C, burner hearth, is N2 by the reduction of nitrogen oxide in flue gas.SNCR flue gas denitrification system is made up of some modules, mainly comprises dilution water module, urea liquid high flow capacity loop module, urea liquid counterbalance valve pack module, metering module, distribution and jet module etc.
In SNCR flue gas denitrification system, distribute and jet module is one of core apparatus of denitration control: distribution system is atomization/cooling-air for controlling each spray gun and the flow of reductant solution, regulate to reach suitable air/liquid quality ratio, obtain best denitration effect; The effect of spraying system, by reductant solution atomization, sprays into flue relevant position and carries out SNCR denitration reaction.
The distribution spout part of existing SNCR flue gas denitrification system does not form separately module, technology is comparatively extensive, cannot accomplish accurate control and monitoring in real time to reductant solution, compressed air require proportioning, reducing agent supply is unstable, atomizing effect cannot be guaranteed, and can affect greatly the denitration effect of SNCR entire system.Existing spare duct and the safety means of not arranging, do not have safety allowance, have potential safety hazard, and system reliability and stability are lower.
Patent CN202343090U discloses a kind of denitrating flue gas spray distribution module, comprise and be arranged in compressed air line below of framework and be arranged in the urea liquid pipeline before framework, on the main pipe rail of described compressed air line, establish successively filtering pressure reducing valve, vortex flow is taken into account check-valves one, on the each branch road being connected with main pipe rail, establish successively ball valve one, control valve and Pressure gauge one, on the main pipe rail of described urea liquid pipeline, establish successively ball valve two, check-valves two, and be positioned at the safety valve of main pipe rail tail end, on the each branch road being connected with the main pipe rail of urea liquid pipeline, establish successively ball valve three, metallic rotameter, Pressure gauge two, the utility model makes each spray gun air or fluid flow ratio (pressure proportional) stable operation within the scope of best atomizing effect, thereby obtain best NOx reduction effect.
Utility model content
The deficiency existing for existing SNCR system assignment jet module, the purpose of this utility model is to provide that one can realize urea liquid and compressed air require is accurately controlled, monitoring in real time, and ensure the atomizing effect of urea liquid, be provided with the SNCR system assignment jet module of bypass for subsequent use and safety means simultaneously.
The technical solution of the utility model is: a kind of distribution jet module for SNCR flue gas denitrification system, comprise compressed air line, urea liquid pipeline and spray gun, compressed air line is connected with spray gun with after the parallel connection of urea liquid pipeline, wherein, described compressed air line is disposed with the first hand-operated valve, compressed air total valve and pressure detecting adjusting device, described compressed air line is parallel with compressed air bypass, after described compressed air bypass one end is connected to the first hand-operated valve, on pipeline before compressed air total valve, after the other end is connected to compressed air total valve, on pipeline before pressure detecting adjusting device, described compressed air bypass is provided with bypass valve.
After SNCR flue gas denitrification system starts, compressed air and urea liquid flow into from spray gun entrance, and compressed air carries out atomization to urea liquid, sprays into flue relevant position and carries out SNCR denitration reaction.Compressed air line is in the time of normal operation, compressed air bypass valve is in closed condition, break down while maybe needing to overhaul at main line, first open bypass valve, close successively afterwards the electrically-controlled valve in parallel with compressed air bypass and hand-operated valve, compressed air bypass comes into operation, and can ensure the stable operation of SNCR security of system.
The described distribution jet module for SNCR flue gas denitrification system also comprises DCS control system, and described pressure detecting adjusting device signal output part is connected with DCS control system, and described DCS control system is connected with compressed air total valve electricity.
Compressed air pressure measures and transfers to DCS control system by pressure detecting adjusting device, DCS control system is connected and can accurately controls compressed air flow regime with compressed air total valve electricity, according to compressed air pressure signal instruction, compressed air line flow is regulated in real time, to meet corresponding flow and atomization requirement.
Described pressure detecting adjusting device comprises pressure display transformer, pressure-reducing valve and air manometer, and the signal output part of described pressure display transformer and air manometer is connected with DCS control system.
Pressure display transformer and air manometer for detection of the compressed air pressure in compressed air line and by pressure signal transmission to DCS control system, pressure-reducing valve is for compressed air decompression.
Pressure display transformer and air manometer be for detection of compressed-air actuated pressure in pipeline, and pressure signal is transferred to DCS control system.
Described compressed air total valve comprises electrically-controlled valve, and described DCS control system is connected with electrically-controlled valve electricity.
Described compressed air total valve comprises the second hand-operated valve, electrically-controlled valve and the 3rd hand-operated valve that are connected successively.
Because electrically-controlled valve is sensor, easily damage.Electrically-controlled valve is installed between the second hand-operated valve and the 3rd hand-operated valve, facilitate the maintenance of electrically-controlled valve.
Urea liquid pipeline comprises successively connected urea pipe total valve, flowmeter, urea liquid Pressure gauge, described flowmeter is connected with DCS control system respectively with urea liquid Pressure gauge signal output part, and described DCS control system is connected with urea pipe total valve electricity.
Flowmeter and urea liquid Pressure gauge are for detection of the flow of urea liquid in urea liquid pipeline and the pressure of urea liquid, and by the flow detecting and pressure signal transmission to DCS control system, DCS control system regulates the urea liquid pipeline total valve in urea liquid pipeline in real time according to urea liquid flow and pressure signal instruction, to meet corresponding flow and atomization requirement.
Described urea pipe total valve comprises needle-valve, and described needle-valve is connected with DCS control system electricity.
The degree of regulation of needle-valve is high, flow that can fine adjustment urea liquid pipeline.
Described spray gun outside is provided with spray gun protective casing, and described spray gun is arranged on one end of spray gun protective casing inside, and described spray gun protective casing is equipped with one end sealing of spray gun, and the other end is connected with flue sidewall, and spray gun protective casing is connected with flue.
Spray gun protective casing can prevent that spray gun is subject to the corrosion of high-temperature flue gas, can improve the service life of spray gun.
Compressed air line is provided with pressure-air cooling branch road; one end of pressure-air cooling branch road is connected on the pipeline after pressure-detecting device; the other end of pressure-air cooling branch road is connected with spray gun protective casing, and described pressure-air cooling branch road is provided with the 4th hand-operated valve.
Pressure-air cooling branch road is connected with spray gun protective casing, makes to be full of compressed air in spray gun protective casing, improves the pressure in spray gun protective casing, prevents that high-temperature flue gas from entering spray gun protective casing and affecting the service life of spray gun.
Another object of the present utility model is to provide a kind of distributor-injection system for SNCR flue gas denitrification system that comprises the described distribution jet module for SNCR flue gas denitrification system, adopts following technical scheme:
A kind of distributor-injection system for SNCR flue gas denitrification system that comprises the described distribution jet module for SNCR flue gas denitrification system, comprise the distribution jet module for SNCR flue gas denitrification system more than two, the described distribution jet module for SNCR flue gas denitrification system more than two is arranged in parallel, and the described distribution jet module for SNCR flue gas denitrification system more than two is connected with flue sidewall respectively from the bottom to top.
The utlity model has following characteristics:
(1) modularization: compressed air line, urea liquid pipeline, spray gun and associated pipe assembly are integrated into unified distribution jet module, and function intensity is high, and flow process control is more clear, facilitates engineering application;
(2) controllability: compressed air line and urea liquid pipeline are respectively arranged with corresponding pressure, flow measuring point, can Real-Time Monitoring compressed air and the two flowing separately of urea liquid, successively as the foundation of SNCR entire system control, feed back to system corresponding module, carry out adjusting in time and controlling;
(3) security: compressed air line is provided with respective branch can switch in time branch road in the time breaking down or overhaul, and improves system run all right, ensures security of system reliability service;
(4) engineering adaptability: adopt the distribution jet module parallel connection of many groups for SNCR flue gas denitrification system for the distributor-injection system of SNCR flue gas denitrification system, form module group, be convenient to engineering application.
Brief description of the drawings
Fig. 1 is the distribution jet module structural representation for SNCR flue gas denitrification system of the present utility model
Fig. 2 is the distributor-injection system structural representation for SNCR flue gas denitrification system
In figure:
01, compressed air line 02, the first hand-operated valve 03, compressed air bypass 04, the second hand-operated valve
05, electrically-controlled valve 06, the 3rd hand-operated valve 07, the 5th hand-operated valve 08, pressure display transformer
09, pressure-reducing valve 10, air manometer 11, urea liquid pipeline 12, needle-valve
13, flowmeter 14, urea liquid Pressure gauge 15, spray gun 16, spray gun protective casing
17, pressure-air cooling branch road 18, the 4th hand-operated valve 19, flue sidewall
Detailed description of the invention
As shown in Figure 1, the utility model, for the distribution jet module of SNCR flue gas denitrification system, comprises compressed air line in parallel 01 and urea liquid pipeline 11, after compressed air line 01 is in parallel with urea liquid pipeline 11, is connected with spray gun 15.Spray gun 15 outsides are provided with spray gun protective casing 16, and spray gun 15 is arranged on one end of spray gun protective casing 16 inside, and spray gun protective casing 16 is equipped with one end sealing of spray gun 15, and the other end is connected with flue sidewall 19 and is connected with flue.
On compressed air line, be disposed with the first hand-operated valve 02, compressed air total valve and pressure detecting adjusting device, described compressed air line 01 is parallel with compressed air bypass 03, after compressed air bypass 03 one end is connected to the first hand-operated valve 02, on pipeline before compressed air total valve, after the other end is connected to compressed air total valve, on pipeline before pressure detecting adjusting device, described compressed air bypass is provided with bypass valve, and bypass valve can be the 5th hand-operated valve.Compressed air line 01 is also provided with pressure-air cooling branch road 17; one end of pressure-air cooling branch road 17 is connected on the pipeline after pressure-detecting device; the other end of pressure-air cooling branch road 17 is connected with spray gun protective casing 16, and pressure-air cooling branch road 17 is provided with the 4th hand-operated valve 18.Distribution jet module for SNCR flue gas denitrification system also comprises DCS control system, described pressure detecting adjusting device signal output part is connected with DCS control system, described DCS control system is connected with compressed air total valve electricity, and DCS control system can be controlled the switch of compressed air total valve.Pressure detecting adjusting device comprises pressure display transformer 08, pressure-reducing valve 09 and air manometer 10.Wherein, the signal output part of pressure display transformer 08 and air manometer 10 is connected with DCS control system.Compressed air total valve comprises the second hand-operated valve 04, electrically-controlled valve 05 and the 3rd hand-operated valve 06 that are connected successively, and electrically-controlled valve 05 is connected with DCS control system.After the first hand-operated valve 02, on the pipeline before compressed air total valve, can be provided with filter, to prevent that upstream impurity from entering upstream device and causing corrosive wear or obstruction.After pressure display transformer 08, on the pipeline before pressure-reducing valve 09, can be provided with check-valves, prevent that gas backstreaming from causing damage to equipment such as the automatically controlled pumps in upstream.On the pipeline in parallel with pressure-air cooling branch road 17, be provided with a hand-operated valve and one section of flexible pipe, flexible pipe arrange to engineering on the spot fitting operation have better adaptability.
Urea liquid pipeline 11 comprises successively connected urea pipe total valve, flowmeter 13, urea liquid Pressure gauge 14, described flowmeter 13 is connected with DCS control system respectively with urea liquid Pressure gauge 14 signal output parts, and described DCS control system is connected with urea pipe total valve electricity.Urea pipe total valve can be needle-valve 12, and needle-valve 12 is connected with DCS control system electricity.After flowmeter 13, on the pipeline before urea liquid Pressure gauge 14, a hand-operated valve can be provided with, after urea liquid Pressure gauge 14, on the pipeline before compressed air line 01 place in parallel, a hand-operated valve and one section of flexible pipe can be provided with.
As shown in Figure 2, a kind of distributor-injection system for SNCR flue gas denitrification system that comprises the described distribution jet module for SNCR flue gas denitrification system, be made up of the distribution jet module parallel connection for SNCR flue gas denitrification system more than two, the described distribution jet module for SNCR flue gas denitrification system more than two is connected with flue sidewall 19 respectively from the bottom to top.
The course of work of this example: while work for the distribution jet module of SNCR flue gas denitrification system; compressed air in compressed air line 01 mixes with the urea liquid in urea liquid pipeline 11 after pressure-reducing valve 09 decompression; compressed air and urea liquid flow into from spray gun 15 entrances; compressed air carries out atomization to urea liquid, enters flue carry out denitration reaction after atomization through spray gun protective casing 16 from flue sidewall 19.Compressed air in the pressure-air cooling branch road 17 of compressed air line 01 enters spray gun protective casing 18, makes to be full of pressure-air in spray gun protective casing 18, prevents that high-temperature flue gas from entering opium pipe protective casing 18 spray gun 15 is caused to erosion.
Compressed air line 01 is in the time of normal operation, bypass valve in compressed air bypass 03 is in closed condition, break down while maybe needing to overhaul at the compressed air total valve of compressed air line 01, first open the 5th hand-operated valve 07, close successively afterwards the electrically-controlled valve in parallel with compressed air bypass 03, the second hand-operated valve and the 3rd hand-operated valve, compressed air bypass 03 comes into operation, and can ensure the stable operation of SNCR security of system.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model application range, within all should still belonging to patent covering scope of the present utility model.
Claims (10)
1. the distribution jet module for SNCR flue gas denitrification system, comprise compressed air line, urea liquid pipeline and spray gun, compressed air line is connected with spray gun with after the parallel connection of urea liquid pipeline, it is characterized in that: described compressed air line is disposed with the first hand-operated valve, compressed air total valve and pressure detecting adjusting device, described compressed air line is parallel with compressed air bypass, after described compressed air bypass one end is connected to the first hand-operated valve, on pipeline before compressed air total valve, after the other end is connected to compressed air total valve, on pipeline before pressure detecting adjusting device, described compressed air bypass is provided with bypass valve.
2. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 1, it is characterized in that: the described distribution jet module for SNCR flue gas denitrification system also comprises DCS control system, described pressure detecting adjusting device signal output part is connected with DCS control system, and described DCS control system is connected with compressed air total valve electricity.
3. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 2, it is characterized in that: described pressure detecting adjusting device comprises pressure display transformer, pressure-reducing valve and air manometer, the signal output part of described pressure display transformer and air manometer is connected with DCS control system.
4. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 3, is characterized in that: described compressed air total valve comprises electrically-controlled valve, and described DCS control system is connected with electrically-controlled valve electricity.
5. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 4, is characterized in that: described compressed air total valve comprises the second hand-operated valve, electrically-controlled valve and the 3rd hand-operated valve that are connected successively.
6. according to a kind of distribution jet module for SNCR flue gas denitrification system described in claim 2 any one claim, it is characterized in that: urea liquid pipeline comprises successively connected urea pipe total valve, flowmeter, urea liquid Pressure gauge, described flowmeter is connected with DCS control system respectively with urea liquid Pressure gauge signal output part, and described DCS control system is connected with urea pipe total valve electricity.
7. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 6, is characterized in that: described urea pipe total valve comprises needle-valve, and described needle-valve is connected with DCS control system electricity.
8. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 1; it is characterized in that: described spray gun outside is provided with spray gun protective casing; described spray gun is arranged on one end of spray gun protective casing inside; described spray gun protective casing is equipped with one end sealing of spray gun; the other end is connected with flue sidewall, and spray gun protective casing is connected with flue.
9. a kind of distribution jet module for SNCR flue gas denitrification system according to claim 8; it is characterized in that: compressed air line is provided with pressure-air cooling branch road; one end of pressure-air cooling branch road is connected on the pipeline after pressure-detecting device; the other end of pressure-air cooling branch road is connected with spray gun protective casing, and described pressure-air cooling branch road is provided with the 4th hand-operated valve.
10. one kind comprises described in claim 1-9 any one claim the distributor-injection system for SNCR flue gas denitrification system for the distribution jet module of SNCR flue gas denitrification system, it is characterized in that: the described distributor-injection system for SNCR flue gas denitrification system comprises the distribution jet module for SNCR flue gas denitrification system more than two, the described distribution jet module for SNCR flue gas denitrification system more than two is arranged in parallel, and the described distribution jet module for SNCR flue gas denitrification system more than two is connected with flue sidewall respectively from the bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165058.7U CN203737102U (en) | 2014-04-04 | 2014-04-04 | Distribution and injection module and system for SNCR (Selective Non Catalytic Reduction) flue gas denitrification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165058.7U CN203737102U (en) | 2014-04-04 | 2014-04-04 | Distribution and injection module and system for SNCR (Selective Non Catalytic Reduction) flue gas denitrification system |
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| Publication Number | Publication Date |
|---|---|
| CN203737102U true CN203737102U (en) | 2014-07-30 |
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ID=51336967
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165058.7U Expired - Fee Related CN203737102U (en) | 2014-04-04 | 2014-04-04 | Distribution and injection module and system for SNCR (Selective Non Catalytic Reduction) flue gas denitrification system |
Country Status (1)
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| CN (1) | CN203737102U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854557A (en) * | 2016-04-21 | 2016-08-17 | 上海迪夫格环境科技有限公司 | Method and device for evenly spraying alkali liquor to remove sulfur trioxide in exhaust gas |
| CN108144430A (en) * | 2018-01-15 | 2018-06-12 | 中国华电科工集团有限公司 | A kind of denitrating flue gas urea metering injection system and method |
| 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 |
| CN108283877A (en) * | 2018-02-11 | 2018-07-17 | 浙江蓝星环保设备有限公司 | A kind of no dilution water SNCR denitration device and its control method |
| CN109289463A (en) * | 2018-10-12 | 2019-02-01 | 彩虹（合肥）液晶玻璃有限公司 | A kind of urea spray system |
| CN116173699A (en) * | 2023-03-02 | 2023-05-30 | 北京亿玮坤节能科技有限公司 | Small nozzle energy-saving high-efficiency desulfurization system |
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- 2014-04-04 CN CN201420165058.7U patent/CN203737102U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854557A (en) * | 2016-04-21 | 2016-08-17 | 上海迪夫格环境科技有限公司 | Method and device for evenly spraying alkali liquor to remove sulfur trioxide in exhaust gas |
| CN108144430A (en) * | 2018-01-15 | 2018-06-12 | 中国华电科工集团有限公司 | A kind of denitrating flue gas urea metering injection system and method |
| 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 |
| CN108144430B (en) * | 2018-01-15 | 2023-12-05 | 中国华电科工集团有限公司 | Flue gas denitration urea metering injection system and method |
| CN108283877A (en) * | 2018-02-11 | 2018-07-17 | 浙江蓝星环保设备有限公司 | A kind of no dilution water SNCR denitration device and its control method |
| CN109289463A (en) * | 2018-10-12 | 2019-02-01 | 彩虹（合肥）液晶玻璃有限公司 | A kind of urea spray system |
| CN116173699A (en) * | 2023-03-02 | 2023-05-30 | 北京亿玮坤节能科技有限公司 | Small nozzle energy-saving high-efficiency desulfurization system |
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Address after: 100097 Beijing City, Haidian District Zizhuyuan 120 Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP Co.,Ltd. Address before: 100097 Beijing City, Haidian District Zizhuyuan 120 Patentee before: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. |
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Granted publication date: 20140730 |