CN105771633A - Denitration reactor device - Google Patents
Denitration reactor device Download PDFInfo
- Publication number
- CN105771633A CN105771633A CN201610197170.2A CN201610197170A CN105771633A CN 105771633 A CN105771633 A CN 105771633A CN 201610197170 A CN201610197170 A CN 201610197170A CN 105771633 A CN105771633 A CN 105771633A
- Authority
- CN
- China
- Prior art keywords
- benitration reactor
- soot blowing
- steam
- blowing pipeline
- casing
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a denitration reactor device. The denitration reactor device comprises a denitration reactor middle tank, a denitration reactor upper tank and a denitration reactor lower tank, wherein the denitration reactor middle tank is of a cuboid shape and is provided with a guide plate and three catalyst layers from top to bottom, and a screen slab is arranged on the surface of each catalyst layer; the denitration reactor upper tank is of an inclined structure and is positioned above the denitration reactor middle tank and connected with the denitration reactor middle tank; included angles A and B of a first inclined plate of the denitration reactor upper tank and the horizontal direction are 150 degrees and 30 degrees, respectively; and the denitration reactor lower tank is of an inclined structure, is positioned below the denitration reactor middle tank and connected with the denitration reactor middle tank, and included angles C and D of a second inclined plate of the denitration reactor lower tank and the vertical direction are 109 degrees and 71 degrees, respectively. The denitration reactor device has the beneficial effects that the structure is simple, the replacement expense of catalysts is reduced and the denitration efficiency is improved.
Description
Technical field
The present invention relates to out of stock technical field, in particular to a kind of Benitration reactor device.
Background technology
The denitration device mainly NOx (nitrogen oxides) sloughed in flue gas enters air and can form acid rain, acid rain is very big to the harm of the mankind, so country is advocating environmental protection always, these materials are all contained with the flue gas that coal is fuel, particularly thermal power plant, building thermal power plant and to build denitration device simultaneously, after existing denitration device life-time service, flue dust is easily deposited on filter course, causes that denitration effect reduces.Meanwhile, the use of catalyst is more, and underuses catalyst.
Summary of the invention
For solving the problems referred to above, it is an object of the invention to provide a kind of simple in construction, reduce catalyst change expense, improve the Benitration reactor device of denitration efficiency.
The invention provides a kind of Benitration reactor device, including:
Casing in Benitration reactor, it is cuboid-type, in Benitration reactor, casing is arranged in vertical direction, in Benitration reactor, casing is provided with deflector from top to bottom, reserved catalyst layer, first initial catalyst oxidant layer and the second initial catalyst oxidant layer, deflector is arranged in the top of Benitration reactor casing, second initial catalyst oxidant layer is arranged in the bottom of Benitration reactor casing, the surface of reserved catalyst layer is provided with the first screen cloth flat board, the surface of the first initial catalyst oxidant layer is provided with the second screen cloth flat board, the surface of the second initial catalyst oxidant layer is provided with the 3rd screen cloth flat board；
Benitration reactor upper box, it is incline structure, the top that Benitration reactor upper box is arranged in Benitration reactor casing, and be connected with casing in Benitration reactor, the horizontal direction of Benitration reactor upper box is the smoke inlet of Benitration reactor device, the first hang plate of Benitration reactor upper box and the included angle A of horizontal direction and included angle B respectively 150 ° and 30 °；
Benitration reactor lower box, it is incline structure, the lower section that Benitration reactor lower box is arranged in Benitration reactor casing, and be connected with casing in Benitration reactor, the vertical direction of Benitration reactor lower box is the exhanst gas outlet of Benitration reactor device, the second hang plate of Benitration reactor lower box and the angle C of vertical direction and angle D respectively 109 ° and 71 °.
Improving further as the present invention, also include steam soot-blower, steam soot-blower is located in Benitration reactor raising middle flask body, and steam soot-blower includes:
Boiler body boiler sootblowing steam entrance, it is arranged in outside the side of Benitration reactor casing；
First steam soot blowing pipeline, it is positioned at Benitration reactor raising middle flask body, the arrival end of boiler body boiler sootblowing steam entrance and the first steam soot blowing pipeline connects, first steam soot blowing pipeline is positioned at above the first screen cloth flat board, and the first steam soot blowing pipeline is provided with the first steam sootblower, the second steam sootblower and the 3rd steam sootblower；
Second steam soot blowing pipeline, it is positioned at Benitration reactor raising middle flask body, the arrival end of the second steam soot blowing pipeline and the port of export of the first steam soot blowing pipeline connect, second steam soot blowing pipeline is positioned at above the second screen cloth flat board, and the second steam soot blowing pipeline is provided with the 4th steam sootblower, the 5th steam sootblower and the 6th steam sootblower；
3rd steam soot blowing pipeline, it is positioned at Benitration reactor raising middle flask body, the arrival end of the 3rd steam soot blowing pipeline and the port of export of the second steam soot blowing pipeline connect, 3rd steam soot blowing pipeline is positioned at above the 3rd screen cloth flat board, and the 3rd steam soot blowing pipeline is provided with the 7th steam sootblower, the 8th steam sootblower and the 9th steam sootblower；
Trench entrance, it is arranged in outside the opposite side of Benitration reactor casing, and the port of export of trench entrance and the 3rd steam soot blowing pipeline connects.
Improve further as the present invention, also include the first Electrically operated gate and the second Electrically operated gate, first Electrically operated gate is between boiler body boiler sootblowing steam entrance and the first steam soot blowing pipeline, first Electrically operated gate is connected with boiler body boiler sootblowing steam entrance, second Electrically operated gate is between trench entrance and the 3rd steam soot blowing pipeline, and the second Electrically operated gate is connected with trench entrance.
Improving further as the present invention, also include sonic soot blowing device, it is external that sonic soot blowing device is located at Benitration reactor raising middle flask, and sonic soot blowing device includes:
Air inlet, it is connected with the arrival end of air inlet pipe,
Compressed air cylinder, which is provided with air inlet and gas outlet, the air inlet of compressed air cylinder is connected with the port of export of air inlet pipe, the gas outlet of compressed air cylinder is connected with the arrival end of air supply pipe, the port of export of air supply pipe is connected with the sidewall of casing in Benitration reactor, and the port of export of air supply pipe is positioned at the top of the first steam soot blowing pipeline；
Regulating valve, it is positioned on air supply pipe；
First soot blowing pipeline, it is positioned at adjustment valve rear end and is connected with air supply pipe, and the first soot blowing pipeline is provided with the first electromagnetic valve and the first acoustic wave ash ejector, the first electromagnetic valve and the first acoustic wave ash ejector and connects；
Second soot blowing pipeline, it is positioned at adjustment valve rear end and is connected with air supply pipe, and the second soot blowing pipeline is provided with the second electromagnetic valve and the second acoustic wave ash ejector, the second electromagnetic valve and the second acoustic wave ash ejector and connects；
3rd soot blowing pipeline, it is positioned at adjustment valve rear end and is connected with air supply pipe, and the 3rd soot blowing pipeline is provided with the 3rd electromagnetic valve and the 3rd acoustic wave ash ejector, and the 3rd electromagnetic valve and the 3rd acoustic wave ash ejector connect；
4th soot blowing pipeline, it is positioned at adjustment valve rear end and is connected with air supply pipe, and the 4th soot blowing pipeline is provided with the 4th electromagnetic valve and falling tone ripple soot blower, and the 4th electromagnetic valve is connected with falling tone ripple soot blower；
5th soot blowing pipeline, it is positioned at adjustment valve rear end and is connected with air supply pipe, and the 5th soot blowing pipeline is provided with the 5th electromagnetic valve and fifth sound ripple soot blower, and the 5th electromagnetic valve is connected with fifth sound ripple soot blower.
Improving further as the present invention, compressed air cylinder is provided with the first piezometer, and the arrival end of air supply pipe is provided with the second piezometer.
Improving further as the present invention, the first soot blowing pipeline, the second soot blowing pipeline, the 3rd soot blowing pipeline, the 4th soot blowing pipeline and the 5th soot blowing pipeline are equipped with ball valve, air inlet pipe is provided with ball valve, and air supply pipe is provided with ball valve.
Improving further as the present invention, Benitration reactor device outer wall is provided with heat-insulation layer.
Improving further as the present invention, smoke inlet is connected to gas approach, and gas approach includes horizontal flue and vertical gas pass, and horizontal flue is connected with smoke inlet, and vertical gas pass is connected with horizontal flue, and vertical gas pass is provided with ammonia injection grid and tube mixer.
Improving further as the present invention, smoke inlet and the exhanst gas outlet of Benitration reactor device are equipped with pressure gauge.
Improve further as the present invention, reserve catalyst layer, seal with sealing plate between the first initial catalyst oxidant layer and the second initial catalyst oxidant layer, reserve catalyst layer, the first initial catalyst oxidant layer, seal with sealing plate between the second initial catalyst oxidant layer and Benitration reactor device inwall.
The invention have the benefit that
1, Benitration reactor upper box and Benitration reactor lower box are designed as incline structure, it is possible to make velocity of flue gas more uniform；
2, it is provided with screen cloth flat board, is placed on catalyst surface, can prevent bulky grain from falling into catalyst, it is possible to flue gas is carried out rectification；
3, arranging of deflector can make flue gas flow field keep uniform in relatively short distance at right angle turn；
4, being provided externally with heat-insulation layer, when can make entrance air preheater, flue-gas temperature is basically unchanged, and temperature deviation can control in 2～3 DEG C；
5, the setting of soot blower can prevent catalyst dust stratification, improves the service efficiency of catalyst, improves denitration efficiency further；
6, reactor is installed and is adopted lower support mode, is provided with a whole set of slip stopping means, it is ensured that reactor within the scope of whole boiler load, along with temperature change and self adaptation is expanded with heat and contract with cold.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Benitration reactor device described in first embodiment of the invention；
Fig. 2 is the structural representation of a kind of Benitration reactor device described in second embodiment of the invention；
Fig. 3 is the structural representation of a kind of Benitration reactor device described in third embodiment of the invention；
Fig. 4 is the structural representation of a kind of Benitration reactor device described in fourth embodiment of the invention；
Fig. 5 is the A-A section sectional view of the catalyst layer of the present invention.
In figure:
1, casing in Benitration reactor；2, Benitration reactor upper box；3, Benitration reactor lower box；4, deflector；51, reserved catalyst layer；52, the first initial catalyst oxidant layer；53, the second initial catalyst oxidant layer；61, the first screen cloth flat board；62, the second screen cloth flat board；63, the 3rd screen cloth flat board；71, the first steam soot blowing pipeline；72, the second steam soot blowing pipeline；73, the 3rd steam soot blowing pipeline；81, the first steam sootblower；82, the second steam sootblower；83, the 3rd steam sootblower；84, the 4th steam sootblower；85, the 5th steam sootblower；86, the 6th steam sootblower；87, the 7th steam sootblower；88, the 8th steam sootblower；89, the 9th steam sootblower；9, boiler body boiler sootblowing steam entrance；101, the first Electrically operated gate；102, the second Electrically operated gate；11, trench entrance；12, air inlet；13, air inlet pipe；14, compressed air cylinder；15, air supply pipe；16, valve is regulated；171, the first soot blowing pipeline；172, the second soot blowing pipeline；173, the 3rd soot blowing pipeline；174, the 4th soot blowing pipeline；175, the 5th soot blowing pipeline；181, the first electromagnetic valve；182, the second electromagnetic valve；183, the 3rd electromagnetic valve；184, the 4th electromagnetic valve；185, the 5th electromagnetic valve；191, the first acoustic wave ash ejector；192, the second acoustic wave ash ejector；193, the 3rd acoustic wave ash ejector；194, falling tone ripple soot blower；195, fifth sound ripple soot blower；201, the first piezometer；202, the second piezometer；211, horizontal flue；212, vertical gas pass；22, ammonia injection grid；23, tube mixer.
Detailed description of the invention
Below by specific embodiment and in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1
As it is shown in figure 1, a kind of Benitration reactor device described in the embodiment of the present invention, including casing in Benitration reactor 1, Benitration reactor upper box 2 and Benitration reactor lower box 3.
In Benitration reactor, casing 1 is cuboid-type, in Benitration reactor, casing 1 is installed in vertical direction, in Benitration reactor, casing 1 is provided with deflector 4 from top to bottom, reserved catalyst layer 51, first initial catalyst oxidant layer 52 and the second initial catalyst oxidant layer 53, deflector 4 is arranged in the top of Benitration reactor casing 1, second initial catalyst oxidant layer 53 is arranged in the bottom of Benitration reactor casing 1, the surface of reserved catalyst layer 51 is provided with the first screen cloth flat board 61, the surface of the first initial catalyst oxidant layer 52 is provided with the second screen cloth flat board 62, the surface of the second initial catalyst oxidant layer 53 is provided with the 3rd screen cloth flat board 63.
Benitration reactor upper box 2 is incline structure, the top that Benitration reactor upper box 2 is arranged in Benitration reactor casing 1, and be connected with casing in Benitration reactor 1, the horizontal direction of Benitration reactor upper box 2 is the smoke inlet of Benitration reactor device, the first hang plate of Benitration reactor upper box 2 and the included angle A of horizontal direction and included angle B respectively 150 ° and 30 °.
Benitration reactor lower box 3 is incline structure, the lower section that Benitration reactor lower box 3 is arranged in Benitration reactor casing 1, and be connected with casing in Benitration reactor 1, the vertical direction of Benitration reactor lower box 3 is the exhanst gas outlet of Benitration reactor device, the second hang plate of Benitration reactor lower box 3 and the angle C of vertical direction and angle D respectively 109 ° and 71 °.
Embodiment 2
As in figure 2 it is shown, this difference from Example 1 is in that, also including steam soot-blower, steam soot-blower is located in Benitration reactor in casing 1, and steam soot-blower includes three steam soot blowing pipelines.
Boiler body boiler sootblowing steam entrance 9 is arranged in outside the side of Benitration reactor casing 1.First steam soot blowing pipeline 71 is arranged in Benitration reactor casing 1, boiler body boiler sootblowing steam entrance 9 is connected with the arrival end of the first steam soot blowing pipeline 71, first steam soot blowing pipeline 71 is positioned at above the first screen cloth flat board 61, and the first steam soot blowing pipeline 71 is provided with the first steam sootblower the 81, second steam sootblower 82 and the 3rd steam sootblower 83.Second steam soot blowing pipeline 72 is arranged in Benitration reactor casing 1, the arrival end of the second steam soot blowing pipeline 72 and the port of export of the first steam soot blowing pipeline 71 connect, second steam soot blowing pipeline 72 is positioned at above the second screen cloth flat board 62, and the second steam soot blowing pipeline 72 is provided with the 4th steam sootblower the 84, the 5th steam sootblower 85 and the 6th steam sootblower 86.3rd steam soot blowing pipeline 73 is arranged in Benitration reactor casing 1, the arrival end of the 3rd steam soot blowing pipeline 73 and the port of export of the second steam soot blowing pipeline 72 connect, 3rd steam soot blowing pipeline 73 is positioned at above the 3rd screen cloth flat board 63, and the 3rd steam soot blowing pipeline 73 is provided with the 7th steam sootblower the 87, the 8th steam sootblower 88 and the 9th steam sootblower 89.Trench entrance 11 is arranged in outside the opposite side of Benitration reactor casing 1, and trench entrance 11 is connected with the port of export of the 3rd steam soot blowing pipeline 73.
Also include the first Electrically operated gate 101 and the second Electrically operated gate 102, first Electrically operated gate 101 is between boiler body boiler sootblowing steam entrance 9 and the first steam soot blowing pipeline 71, first Electrically operated gate 101 is connected with boiler body boiler sootblowing steam entrance 9, second Electrically operated gate 102 is between trench entrance 11 and the 3rd steam soot blowing pipeline 73, and the second Electrically operated gate 72 is connected with trench entrance 11.
Embodiment 3
As it is shown on figure 3, difference from Example 2 is in that, also including sonic soot blowing device, sonic soot blowing device is located in Benitration reactor outside casing 1.Air inlet 12 is connected with the arrival end of air inlet pipe 13.Compressed air cylinder 14 is provided with air inlet and gas outlet, the air inlet of compressed air cylinder 14 is connected with the port of export of air inlet pipe 13, the gas outlet of compressed air cylinder 14 is connected with the arrival end of air supply pipe 15, the port of export of air supply pipe 15 is connected with the sidewall of casing in Benitration reactor 1, and the port of export of air supply pipe 15 is positioned at the top of the first steam soot blowing pipeline 71.Regulate valve 16 to be positioned on air supply pipe 15.First soot blowing pipeline 171 is positioned at adjustment valve 16 rear end and is connected with air supply pipe 15, and the first soot blowing pipeline 171 is provided with the first electromagnetic valve 181 and the first acoustic wave ash ejector 191, and the first electromagnetic valve 181 is connected with the first acoustic wave ash ejector 191.Second soot blowing pipeline 172 is positioned at adjustment valve 16 rear end and is connected with air supply pipe 15, and the second soot blowing pipeline 172 is provided with the second electromagnetic valve 182 and the second acoustic wave ash ejector 192, and the second electromagnetic valve 182 is connected with the second acoustic wave ash ejector 192.3rd soot blowing pipeline 173, it is positioned at adjustment valve 16 rear end and is connected with air supply pipe 15, and the 3rd soot blowing pipeline 173 is provided with the 3rd electromagnetic valve 183 and the 3rd acoustic wave ash ejector 193, and the 3rd electromagnetic valve 183 is connected with the 3rd acoustic wave ash ejector 193.4th soot blowing pipeline 174, it is positioned at adjustment valve 16 rear end and is connected with air supply pipe 15, and the 4th soot blowing pipeline 174 is provided with the 4th electromagnetic valve 184 and falling tone ripple soot blower 194, and the 4th electromagnetic valve 184 is connected with falling tone ripple soot blower 194.5th soot blowing pipeline 175, it is positioned at adjustment valve 16 rear end and is connected with air supply pipe 15, and the 5th soot blowing pipeline 175 is provided with the 5th electromagnetic valve 185 and fifth sound ripple soot blower 195, and the 5th electromagnetic valve 185 is connected with fifth sound ripple soot blower 195.
Compressed air cylinder 14 is provided with the first piezometer 201, and the arrival end of air supply pipe 15 is provided with the second piezometer 202.Being equipped with ball valve on first soot blowing pipeline the 171, second soot blowing pipeline the 172, the 3rd soot blowing pipeline the 173, the 4th soot blowing pipeline 174 and the 5th soot blowing pipeline 175, air inlet pipe 13 is provided with ball valve, and air supply pipe 15 is provided with two ball valves.
Embodiment four
As shown in Figure 4, difference from Example 1 is in that, smoke inlet is connected to gas approach, gas approach includes horizontal flue 211 and vertical gas pass 212, horizontal flue 211 is connected with smoke inlet, vertical gas pass 212 is connected with horizontal flue 211, and vertical gas pass 212 is provided with ammonia injection grid 22 and tube mixer 23.Smoke inlet and the exhanst gas outlet of Benitration reactor device are equipped with pressure gauge.
Reactor inlet in the present invention devises deflector, it is possible to make flue gas flow field keep uniform in relatively short distance at right angle turn.Reactor head flue can make velocity of flue gas more uniform, shortens the gas approach distance to catalyst layer, so that reactor is compacter.
Fig. 5 is the A-A section sectional view of the catalyst layer of the present invention.It is provided with screen cloth flat board in reactor, is placed on catalyst surface, can prevent bulky grain from falling into catalyst, it is possible to flue gas is carried out rectification.Sufficient space is had, to prevent catalyst dust stratification between catalyst layer and fine strain of millet.
Accumulatingdust device is set between catalyst and between catalyst and reactor wall.Accumulatingdust device is steam soot-blower and sound wave soot blower.While starting steam sootblower, also start acoustic wave ash ejector system simultaneously.Boiler body boiler sootblowing steam comes, and Electrically operated gate is opened in timing, makes steam enter steam sootblower, is timed purging；Meanwhile, compression air is come by compressed air cylinder, and by pressure-regulating valve, electromagnetic valve is opened in timing, allows compressed air into acoustic wave ash ejector, is timed purging.Under the various load condition of boiler, it is neat and tidy that catalyst surface is purged, and catalyst surface does not assemble ash caking, do not result in catalyst blockage, SR will not strengthen, denitration and host computer system energy stable operation, denitration outlet drain nitrogen oxides qualified discharge.
In order to prevent abrasion, flue gas flow field to optimize, and velocity of flue gas is wanted rationally.Mild shape is all adopted to design from economizer exit to the flue of reactor inlet and reactor outlet to air preheater gas approach.Reactor inlet flue is arranged and NH in order to ammonia sprays grid3/ NOx mixed in molar ratio is uniform, adopts flue gas flow rate to be about 15m/s；Reactor outlet Flue duct design flow velocity is about 15m/s.
Reserve and seal with sealing plate between catalyst layer the 51, first initial catalyst oxidant layer 52 and the second initial catalyst oxidant layer 53, reserve and seal with sealing plate between catalyst layer the 51, first initial catalyst oxidant layer the 52, second initial catalyst oxidant layer 53 and Benitration reactor device inwall.
The installation of reactor adopts lower support mode, is provided with a whole set of slip stopping means, it is ensured that reactor within the scope of whole boiler load, along with temperature change and self adaptation is expanded with heat and contract with cold.
Reactor is provided externally with heat-insulation layer, and owing to catalytic reduction reaction is exothermic reaction, cigarette temperature slightly improves, it is contemplated that along journey radiation loss, and when entering air preheater, flue-gas temperature is basically unchanged, and temperature deviation can control in 2～3 DEG C.
Pressure gauge is all installed in reactor inlet and outlet, it is possible to measures pressure reduction, when pressure reduction is excessive, it was shown that catalyst blockage, should strengthen soot blowing.Every layer of catalyst mounting layer all installs performance test measuring point perforate, and properly functioning blind plate blocks.
Junction between flue with flue is for welding, and the joint of flue and equipment room is Flange joint.
The system flue gas resistance table of the present invention is as shown in table 1.
Table 1
| Sequence number | Project | Numerical value |
| One | Reactor flue resistance | |
| 1 | Reactor inlet flue | |
| 〔1〕 | Economizer exit is to ammonia-spraying grid | 50 |
| 〔2〕 | Ammonia-spraying grid | 50 |
| 〔3〕 | Ammonia-spraying grid is to commutator | 100 |
| 〔4〕 | Commutator is to top layer catalyst | 30 |
| Subtotal | 230 | |
| 2 | Catalyst area | |
| 〔1〕 | Reserved catalyst inlet is to ground floor catalyst outlet | 200 |
| 〔2〕 | Ground floor catalyst outlet is to second layer catalyst outlet | 200 |
| Subtotal | 400 | |
| 2 | Reactor outlet flue | 50 |
| 3 | Drag overall (by just filling catalyst) | 680 |
| 4 | Drag overall (containing preparation layers catalyst) | 880 |
A kind of Benitration reactor device of the present invention, discharged nitrous oxides concentration, not higher than 50 milligrams/cubic metre, improves denitration efficiency, reaches environmental protection minimum discharge requirement.Simultaneously.Reducing system components pressure drop, system drag overall (containing preparation layers catalyst), by original 1000Pa, optimizes and reduces resistance 120Pa, and final system drag overall (containing preparation layers catalyst) is about 880Pa.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a Benitration reactor device, it is characterised in that including:
Casing (1) in Benitration reactor, it is cuboid-type, in described Benitration reactor, casing (1) is installed in vertical direction, in described Benitration reactor, casing (1) is provided with deflector (4) from top to bottom, reserved catalyst layer (51), first initial catalyst oxidant layer (52) and the second initial catalyst oxidant layer (53), described deflector (4) is arranged in the top of described Benitration reactor casing (1), described second initial catalyst oxidant layer (53) is arranged in the bottom of described Benitration reactor casing (1), the surface of described reserved catalyst layer (51) is provided with the first screen cloth flat board (61), the surface of described first initial catalyst oxidant layer (52) is provided with the second screen cloth flat board (62), the surface of described second initial catalyst oxidant layer (53) is provided with the 3rd screen cloth flat board (63)；
Benitration reactor upper box (2), it is incline structure, the top that described Benitration reactor upper box (2) is arranged in described Benitration reactor casing (1), and be connected with casing (1) in described Benitration reactor, the horizontal direction of described Benitration reactor upper box (2) is the smoke inlet of Benitration reactor device, described first hang plate of Benitration reactor upper box (2) and the included angle A of horizontal direction and included angle B respectively 150 ° and 30 °；
Benitration reactor lower box (3), it is incline structure, the lower section that described Benitration reactor lower box (3) is arranged in described Benitration reactor casing (1), and be connected with casing (1) in described Benitration reactor, the vertical direction of described Benitration reactor lower box (3) is the exhanst gas outlet of Benitration reactor device, described second hang plate of Benitration reactor lower box (3) and the angle C of vertical direction and angle D respectively 109 ° and 71 °.
2. Benitration reactor device according to claim 1, it is characterised in that also include steam soot-blower, described steam soot-blower is located in described Benitration reactor in casing (1), and described steam soot-blower includes:
Boiler body boiler sootblowing steam entrance (9), it is arranged in outside the side of described Benitration reactor casing (1)；
First steam soot blowing pipeline (71), it is arranged in described Benitration reactor casing (1), described boiler body boiler sootblowing steam entrance (9) is connected with the arrival end of described first steam soot blowing pipeline (71), described first steam soot blowing pipeline (71) is positioned at described first screen cloth flat board (61) top, and described first steam soot blowing pipeline (71) is provided with the first steam sootblower (81), the second steam sootblower (82) and the 3rd steam sootblower (83)；
Second steam soot blowing pipeline (72), it is arranged in described Benitration reactor casing (1), the arrival end of described second steam soot blowing pipeline (72) is connected with the port of export of described first steam soot blowing pipeline (71), described second steam soot blowing pipeline (72) is positioned at described second screen cloth flat board (62) top, and described second steam soot blowing pipeline (72) is provided with the 4th steam sootblower (84), the 5th steam sootblower (85) and the 6th steam sootblower (86)；
3rd steam soot blowing pipeline (73), it is arranged in described Benitration reactor casing (1), the arrival end of described 3rd steam soot blowing pipeline (73) is connected with the port of export of described second steam soot blowing pipeline (72), described 3rd steam soot blowing pipeline (73) is positioned at described 3rd screen cloth flat board (63) top, and described 3rd steam soot blowing pipeline (73) is provided with the 7th steam sootblower (87), the 8th steam sootblower (88) and the 9th steam sootblower (89)；
Trench entrance (11), it is arranged in outside the opposite side of described Benitration reactor casing (1), and described trench entrance (11) is connected with the port of export of described 3rd steam soot blowing pipeline (73).
3. Benitration reactor device according to claim 2, it is characterized in that, also include the first Electrically operated gate (101) and the second Electrically operated gate (102), described first Electrically operated gate (101) is positioned between described boiler body boiler sootblowing steam entrance (9) and described first steam soot blowing pipeline (71), described first Electrically operated gate (101) is connected with described boiler body boiler sootblowing steam entrance (9), described second Electrically operated gate (102) is positioned between described trench entrance (11) and described 3rd steam soot blowing pipeline (73), described second Electrically operated gate (72) is connected with described trench entrance (11).
4. Benitration reactor device according to claim 1, it is characterised in that also include sonic soot blowing device, described sonic soot blowing device is located in described Benitration reactor casing (1) outward, and described sonic soot blowing device includes:
Air inlet (12), it is connected with the arrival end of air inlet pipe (13),
Compressed air cylinder (14), which is provided with air inlet and gas outlet, the air inlet of described compressed air cylinder (14) is connected with the port of export of described air inlet pipe (13), the gas outlet of described compressed air cylinder (14) is connected with the arrival end of air supply pipe (15), the port of export of described air supply pipe (15) is connected with the sidewall of casing (1) in described Benitration reactor, and the port of export of described air supply pipe (15) is positioned at the top of described first steam soot blowing pipeline (71)；
Regulating valve (16), it is positioned on described air supply pipe (15)；
First soot blowing pipeline (171), it is positioned at described adjustment valve (16) rear end and is connected with described air supply pipe (15), described first soot blowing pipeline (171) is provided with the first electromagnetic valve (181) and the first acoustic wave ash ejector (191), and described first electromagnetic valve (181) is connected with described first acoustic wave ash ejector (191)；
Second soot blowing pipeline (172), it is positioned at described adjustment valve (16) rear end and is connected with described air supply pipe (15), described second soot blowing pipeline (172) is provided with the second electromagnetic valve (182) and the second acoustic wave ash ejector (192), and described second electromagnetic valve (182) is connected with described second acoustic wave ash ejector (192)；
3rd soot blowing pipeline (173), it is positioned at described adjustment valve (16) rear end and is connected with described air supply pipe (15), described 3rd soot blowing pipeline (173) is provided with the 3rd electromagnetic valve (183) and the 3rd acoustic wave ash ejector (193), and described 3rd electromagnetic valve (183) is connected with described 3rd acoustic wave ash ejector (193)；
4th soot blowing pipeline (174), it is positioned at described adjustment valve (16) rear end and is connected with described air supply pipe (15), described 4th soot blowing pipeline (174) is provided with the 4th electromagnetic valve (184) and falling tone ripple soot blower (194), and described 4th electromagnetic valve (184) is connected with described falling tone ripple soot blower (194)；
5th soot blowing pipeline (175), it is positioned at described adjustment valve (16) rear end and is connected with described air supply pipe (15), described 5th soot blowing pipeline (175) is provided with the 5th electromagnetic valve (185) and fifth sound ripple soot blower (195), and described 5th electromagnetic valve (185) is connected with described fifth sound ripple soot blower (195).
5. Benitration reactor device according to claim 4, it is characterized in that, described compressed air cylinder (14) is provided with the first piezometer (201), and the arrival end of described air supply pipe (15) is provided with the second piezometer (202).
6. Benitration reactor device according to claim 4, it is characterized in that, described first soot blowing pipeline (171), described second soot blowing pipeline (172), described 3rd soot blowing pipeline (173), described 4th soot blowing pipeline (174) and described 5th soot blowing pipeline (175) are equipped with ball valve, described air inlet pipe (13) is provided with ball valve, and described air supply pipe (15) is provided with ball valve.
7. Benitration reactor device according to claim 1, it is characterised in that described Benitration reactor device outer wall is provided with heat-insulation layer.
8. Benitration reactor device according to claim 1, it is characterized in that, described smoke inlet is connected to gas approach, described gas approach includes horizontal flue (211) and vertical gas pass (212), described horizontal flue (211) is connected with described smoke inlet, described vertical gas pass (212) is connected with described horizontal flue (211), and described vertical gas pass (212) is provided with ammonia injection grid (22) and tube mixer (23).
9. Benitration reactor device according to claim 1, it is characterised in that smoke inlet and the exhanst gas outlet of described Benitration reactor device are equipped with pressure gauge.
10. Benitration reactor device according to claim 1, it is characterized in that, seal with sealing plate between described reserved catalyst layer (51), described first initial catalyst oxidant layer (52) and described second initial catalyst oxidant layer (53), described reserved catalyst layer (51), described first initial catalyst oxidant layer (52), seal with sealing plate between described second initial catalyst oxidant layer (53) and described Benitration reactor device inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197170.2A CN105771633A (en) | 2016-03-31 | 2016-03-31 | Denitration reactor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197170.2A CN105771633A (en) | 2016-03-31 | 2016-03-31 | Denitration reactor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105771633A true CN105771633A (en) | 2016-07-20 |
Family
ID=56395338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610197170.2A Pending CN105771633A (en) | 2016-03-31 | 2016-03-31 | Denitration reactor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105771633A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569647A (en) * | 2020-05-14 | 2020-08-25 | 华电电力科学研究院有限公司 | SCR denitration inlet flow field adjusting device and control method thereof |
| CN112588109A (en) * | 2020-11-23 | 2021-04-02 | 江苏沐唯特环保科技有限公司 | SCR denitration reactor with soot blower |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987280A (en) * | 2010-11-24 | 2011-03-23 | 中国科学院广州能源研究所 | SCR (silicon controlled rectifier) denitration reactor of coal fuel gas |
| CN102179156A (en) * | 2011-05-06 | 2011-09-14 | 东南大学 | Smoke denitration device for preventing catalyst from being plugged by popcorn ash |
| US20120117948A1 (en) * | 2010-11-11 | 2012-05-17 | Johnson Matthey Public Limited Company | exhaust gas aftertreatment |
| WO2013014467A1 (en) * | 2011-07-28 | 2013-01-31 | Johnson Matthey Public Limited Company | Zoned catalytic filters for treatment of exhaust gas |
| US20130152552A1 (en) * | 2010-08-23 | 2013-06-20 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control device of internal combustion engine |
| CN203777940U (en) * | 2014-04-10 | 2014-08-20 | 四川川锅环保工程有限公司 | SCR (selective catalytic reduction) denitration reaction device |
| CN205586815U (en) * | 2016-03-31 | 2016-09-21 | 大唐环境产业集团股份有限公司 | Denitration reactor device |
-
2016
- 2016-03-31 CN CN201610197170.2A patent/CN105771633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130152552A1 (en) * | 2010-08-23 | 2013-06-20 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control device of internal combustion engine |
| US20120117948A1 (en) * | 2010-11-11 | 2012-05-17 | Johnson Matthey Public Limited Company | exhaust gas aftertreatment |
| CN101987280A (en) * | 2010-11-24 | 2011-03-23 | 中国科学院广州能源研究所 | SCR (silicon controlled rectifier) denitration reactor of coal fuel gas |
| CN102179156A (en) * | 2011-05-06 | 2011-09-14 | 东南大学 | Smoke denitration device for preventing catalyst from being plugged by popcorn ash |
| WO2013014467A1 (en) * | 2011-07-28 | 2013-01-31 | Johnson Matthey Public Limited Company | Zoned catalytic filters for treatment of exhaust gas |
| CN203777940U (en) * | 2014-04-10 | 2014-08-20 | 四川川锅环保工程有限公司 | SCR (selective catalytic reduction) denitration reaction device |
| CN205586815U (en) * | 2016-03-31 | 2016-09-21 | 大唐环境产业集团股份有限公司 | Denitration reactor device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569647A (en) * | 2020-05-14 | 2020-08-25 | 华电电力科学研究院有限公司 | SCR denitration inlet flow field adjusting device and control method thereof |
| CN111569647B (en) * | 2020-05-14 | 2024-04-26 | 华电电力科学研究院有限公司 | SCR denitration inlet flow field adjusting device and control method thereof |
| CN112588109A (en) * | 2020-11-23 | 2021-04-02 | 江苏沐唯特环保科技有限公司 | SCR denitration reactor with soot blower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105716100A (en) | Denitrating coal economizer high-temperature bypass device | |
| CN103084064A (en) | System and method for improving operation capacity of SCR (Silicon Controlled Rectifier) denitration device in electric power plant | |
| CN102688688B (en) | SNCR (Selective Non Catalytic Reduction) denitration device with low energy consumption and high efficiency for circulating fluidized bed boilers | |
| CN101543720A (en) | Integrated physical simulation system of selective catalytic reduction and denitration reactor of flue gas of coal burning boiler | |
| CN203170222U (en) | System for improving running capability of SCR (selective catalytic reduction) denitrating device in power plant | |
| CN105771633A (en) | Denitration reactor device | |
| CN205592980U (en) | Denitration economizer high temperature bypass device | |
| CN205586815U (en) | Denitration reactor device | |
| CN107008144B (en) | Device for realizing SCR flue gas denitration multistage ammonia spraying and flue gas denitration method | |
| CN107869726A (en) | Thermal generation unit denitrating flue gas remodeling method | |
| CN113522012B (en) | Flue gas denitration ammonia spraying mixing system, static mixer thereof and ammonia spraying control method | |
| CN203598607U (en) | Flue-gas denitrifying and pre-dedusting device | |
| CN213314305U (en) | Dust removal and denitration device for cement kiln | |
| CN201404765Y (en) | Low-resistance type circulating fluidized bed flue gas desulfurization | |
| CN105597530B (en) | A kind of denitrating system applied in pulverized-coal fired boiler | |
| CN104190248B (en) | A kind of denitrification apparatus | |
| CN201166378Y (en) | Denitrating reactor of integrated coal economizer | |
| CN201768448U (en) | Bag-type dust collector | |
| CN215901277U (en) | Cement kiln tail high temperature dust removal denitration and waste heat utilization system | |
| CN109985522A (en) | SCR flue gas denitration reactor and method are embedded in a kind of waste heat boiler for cement furnace denitrating flue gas | |
| CN212309327U (en) | Denitration system | |
| CN107044319A (en) | The preposition waste gas treating water tank of crimped ribbon arrester | |
| CN107883374A (en) | A kind of natural gas boiler low nitrogen burning system and technique | |
| CN202199253U (en) | Ammonia spraying device for selective catalytic reduction denitration system | |
| CN111992025A (en) | Denitration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |