CN208194068U - A kind of energy-saving, environmental protection boiler denitrification apparatus - Google Patents
A kind of energy-saving, environmental protection boiler denitrification apparatus Download PDFInfo
- Publication number
- CN208194068U CN208194068U CN201820384991.1U CN201820384991U CN208194068U CN 208194068 U CN208194068 U CN 208194068U CN 201820384991 U CN201820384991 U CN 201820384991U CN 208194068 U CN208194068 U CN 208194068U
- Authority
- CN
- China
- Prior art keywords
- denitration
- denitrification apparatus
- pipeline
- catalyst layer
- interlayer
- 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
- 230000007613 environmental effect Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000003054 catalyst Substances 0.000 claims abstract description 34
- 239000011229 interlayer Substances 0.000 claims abstract description 30
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 16
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 5
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 21
- 239000003546 flue gas Substances 0.000 abstract description 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of energy-saving, environmental protection boiler denitrification apparatus, it is related to Denitration in Boiler technical field, including boiler body and denitrification apparatus, the denitrification apparatus includes smoke inlet, denitration main body and outlet flue, ammonia-gas spraying device is provided at smoke inlet in the denitration main body, the ammonia-gas spraying device is provided with mixer close to the side of outlet flue, the mixer is provided with catalyst layer close to the side of outlet flue, the exhaust outlet of the boiler body is connected to by denitration pipeline with the smoke inlet of denitrification apparatus, the boiler body includes furnace shell and burner hearth, interlayer is provided between the furnace shell and burner hearth, circulating water pipe is provided in the interlayer, the circulating water pipe is entered in denitration pipeline by interlayer, entered in interlayer by denitration pipeline again and forms closed loop pipeline.The utility model absorbs the heat that boiler distributes by circulating water pipe to preheat to flue gas, has not only saved cost, but also reduce the time that flue gas reaches effective operating temperature.
Description
Technical field
The utility model relates to Denitration in Boiler technical fields, more particularly to a kind of energy-saving, environmental protection boiler denitrification apparatus.
Background technique
In boiler use process, a large amount of nitrogen oxides can be generated by burning, with nitrogen oxides bring atmosphere
It pollutes increasingly severe, it is therefore necessary to denitration process be carried out to the flue gas that boiler combustion generates, so that flue gas is met discharge standard,
Meet sustainable development strategies.Currently, medium small boiler generallys use SCR denitration device to control the discharge of nitrogen oxides, SCR
The denitration efficiency of denitrification apparatus relies heavily on the flue-gas temperature into reaction unit, effective work of SCR denitration device
Temperature is about 300-400 DEG C, and existing SCR denitration device is all individually to be heated using heater to flue gas, not only the energy
Expend it is larger, and flue gas heating time-consuming, greatly affected the efficiency of denitration.
Utility model content
The shortcomings that technical problem to be solved in the utility model is, overcomes the prior art provides a kind of energy conservation and environmental protection pot
Furnace denitrification apparatus.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of energy-saving, environmental protection boiler denitrification apparatus, including boiler body and denitrification apparatus, the denitrification apparatus include into cigarette
Mouthful, denitration main body and outlet flue, be provided with ammonia-gas spraying device at smoke inlet in the denitration main body, the ammonia-gas spraying device includes
Ammonia water spray gun, the ammonia water spray gun are connected to by pipeline with the tank used for storing ammonia outside denitrification apparatus, and the ammonia-gas spraying device is close to smoke
The side of mouth is provided with mixer, and the mixer is provided with catalyst layer close to the side of outlet flue, the boiler body
Exhaust outlet is connected to by denitration pipeline with the smoke inlet of denitrification apparatus, and the boiler body includes furnace shell and burner hearth, the furnace shell
It is provided with interlayer between burner hearth, circulating water pipe is provided in the interlayer, the circulating water pipe enters denitration pipeline by interlayer
It is interior, then entered in interlayer by denitration pipeline and form closed loop pipeline, electric heating is provided at smoke inlet in the denitration pipeline
Device.
Further, the circulating water pipe is located at the S-type setting in part in interlayer, and the circulating water pipe is located at denitration pipe
Part in road is arranged on the inner wall of denitration pipeline.
A kind of preceding energy-saving, environmental protection boiler denitrification apparatus, there are two ammonia water spray gun settings, described two ammonia water spray guns
It is oppositely arranged on denitration main body inner sidewall.
A kind of preceding energy-saving, environmental protection boiler denitrification apparatus, the interior catalyst layer that is located at of denitration main body is close to the one of outlet flue
Side is provided with activated charcoal strainer.
A kind of preceding energy-saving, environmental protection boiler denitrification apparatus, catalyst layer include the first catalyst layer and the second catalyst
Layer, second catalyst layer is between the first catalyst layer and activated charcoal strainer.
A kind of preceding energy-saving, environmental protection boiler denitrification apparatus, the first catalyst layer are made of vanadic anhydride, and described the
Two catalyst layers are made of di-iron trioxide.
The beneficial effects of the utility model are:
(1) the utility model sandwich establishment in boiler body is provided with circulating water pipe in interlayer, and circulating water pipe is by pressing from both sides
Layer enters in denitration pipeline, then is entered in interlayer by denitration pipeline and form closed loop pipeline, in the use process of boiler, recirculated water
Water in pipe absorbs the heat that burner hearth distributes, and plays the role of heat dissipation to burner hearth, the water after absorbing heat is moved to denitration pipeline
It is interior, so that the flue gas in denitration pipeline is heated up, realize the preheating to flue gas, is again introduced into interlayer after the water cooling in circulating water pipe
In, heat is absorbed, cycle operation is realized, has not saved cost only effectively, and reduces flue gas and reaches effective operating temperature
Time, at the same time it can also radiate to boiler；
(2) the S-type setting of circulating water pipe being located in the utility model in interlayer, effectively increases circulating water pipe and is pressing from both sides
Heating surface area and heated time in layer, keep the water temperature in circulating water pipe higher, improve the preheating to flue gas in denitration pipeline
Effect；
(3) the utility model is oppositely arranged two ammonia water spray guns in denitration main body, and the ammonia to be formed is allow to upset cigarette
The moving direction of gas, is sufficiently mixed flue gas with ammonia, to improve the efficiency of denitration；
(4) two catalyst layers are arranged in the utility model in denitration main body, not only effectively improve and take off to flue gas
Nitre quality, and the phenomenon that be avoided as much as possible the escaping of ammonia；Activated carbon adsorption layer is provided with after catalyst layer again, it can be to cigarette
Benzene class, phenols organic gas in gas carry out adsorption treatment, and the flue gas of discharge is made to further conform to discharge standard.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the side sectional view of boiler body in Fig. 1；
Fig. 3 is the cross-sectional view of A-A in Fig. 1；
Wherein: 1, boiler body；2, smoke inlet；3, denitration main body；4, outlet flue；5, ammonia water spray gun；6, mixer；7, it urges
Agent layer；8, exhaust outlet；9, denitration pipeline；10, furnace shell；11, burner hearth；12, interlayer；13, circulating water pipe；14, electric heater；
15, activated charcoal strainer；16, the first catalyst layer；17, the second catalyst layer；18, water inlet.
Specific embodiment
To make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, makes further details of explanation to the utility model.
Present embodiments provide a kind of energy-saving, environmental protection boiler denitrification apparatus, including boiler body 1 and denitrification apparatus, denitration dress
It sets including smoke inlet 2, denitration main body 3 and outlet flue 4, is provided with ammonia-gas spraying device in denitration main body 3 at smoke inlet 2, spray ammonia
Device includes two ammonia water spray guns 5, and two ammonia water spray guns 5 are oppositely arranged on 3 inner sidewall of denitration main body, and ammonia water spray gun 5 passes through
Pipeline is connected to the tank used for storing ammonia outside denitrification apparatus, and the side of outlet flue 4 is provided with mixer 6 in ammonia-gas spraying device, mixed
Clutch 6 is provided with catalyst layer 7 close to the side of outlet flue 4, and catalyst layer 7 includes the first catalyst layer 16 and the second catalyst
Layer 17, the second catalyst layer 17 is located at the first catalyst layer 16 close to the side of outlet flue 4, wherein the first catalyst layer 16 by
Vanadic anhydride is made, and the second catalyst layer 17 is made of di-iron trioxide, in the second catalyst layer 17 close to the one of outlet flue 4
Side is additionally provided with activated charcoal strainer 15.
The exhaust outlet 8 of boiler body 1 is connected to by denitration pipeline 9 with the smoke inlet 2 of denitrification apparatus, in denitration pipeline 9
Be provided with electric heater 14 at the smoke inlet 2, boiler body 1 includes furnace shell 10 and burner hearth 11, furnace shell 10 and burner hearth 11 it
Between be provided with interlayer 12, be provided with circulating water pipe 13 in interlayer 12, circulating water pipe 13 enters in denitration pipeline 9 from interlayer 12,
Being entered in interlayer 12 by denitration pipeline 9 again and forms closed loop pipeline, circulating water pipe 13 is located at the S-type setting in part in interlayer 12,
The part that circulating water pipe 13 is located in denitration pipeline 9 is arranged on the inner wall of denitration pipeline 9, as shown in Fig.1 and Fig.2, circulating water pipe
13 enter denitration pipeline 9 by the air inlet of denitration pipeline 9 from the interlayer 12 in left side, and the upper tube wall of fitting denitration pipeline 9 stretches to de-
In nitre pipeline 9, the lower tube wall of denitration pipeline 9 is then bonded by stretching out denitration pipeline 9 by the air inlet of denitration pipeline 9, is entered back into
In the interlayer 12 on right side, as shown in figures 1 and 3, circulating water pipe 13 is located at both ends some water of the part in interlayer 12
Pipe stretches out interlayer 12, water inlet 18 and water outlet as circulating water pipe 13.
Working principle of the utility model is: boiler when in use, burns, the flue gas of generation is entered de- by the exhaust outlet 8 of boiler
In nitre pipeline 9, water is conveyed into circulating water pipe 13 by the water inlet of circulating water pipe 13, water flows in circulating water pipe 13,
Water in boiler interlayer 12 absorbs the heat that burner hearth 11 radiates, and is then moved in denitration pipeline 9, the water in circulating water pipe 13
By heat transfer, the flue gas in denitration pipeline 9 is made to heat up, realized after preheating to flue gas, water cool down in denitration pipeline 9 again
It absorbs heat in into interlayer 12, realizes cycle operation；Flue gas after preheating makes flue gas reach effective work by electric heater 14
Make temperature, subsequently into denitration main body 3, the ammonium hydroxide in tank used for storing ammonia is sprayed by the ammonia water spray gun 5 in denitration main body 3 by pipeline
In denitration main body 3, the ammonium hydroxide of ejection becomes ammonia at high temperature, mixes with flue gas, then passes through mixer 6, further mixes
Uniformly, denitration reaction is then occurred, the flue gas after denitration is using work by the first catalyst layer 16 and the second catalyst layer 17
Property charcoal filter screen 15 is absorbed and filter, and is then discharged by outlet flue 4.
In addition to the implementation, the utility model can also have other embodiments；It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, the protection scope of the requires of the utility model is all fallen within.
Claims (6)
1. a kind of energy-saving, environmental protection boiler denitrification apparatus, including boiler body (1) and denitrification apparatus, it is characterised in that: the denitration
Device includes smoke inlet (2), denitration main body (3) and outlet flue (4), is arranged at smoke inlet (2) in the denitration main body (3)
There is ammonia-gas spraying device, the ammonia-gas spraying device includes ammonia water spray gun (5), and the ammonia water spray gun (5) passes through outside pipeline and denitrification apparatus
Tank used for storing ammonia connection, the ammonia-gas spraying device are provided with mixer (6) close to the side of outlet flue (4), and the mixer (6) is close
The side of outlet flue (4) is provided with catalyst layer (7), the exhaust outlet (8) of the boiler body (1) by denitration pipeline (9) with
The smoke inlet (2) of denitrification apparatus is connected to, and the boiler body (1) includes furnace shell (10) and burner hearth (11), the furnace shell (10) and
It is provided with interlayer (12), is provided with circulating water pipe (13) in the interlayer (12), the circulating water pipe (13) between burner hearth (11)
Entered in denitration pipeline (9) by interlayer (12), then is entered in interlayer (12) by denitration pipeline (9) and form closed loop pipeline, it is described de-
Electric heater (14) are provided at smoke inlet (2) in nitre pipeline (9).
2. a kind of energy-saving, environmental protection boiler denitrification apparatus according to claim 1, it is characterised in that: the circulating water pipe (13)
The S-type setting in part in interlayer (12), the circulating water pipe (13) are located at the setting of the part in denitration pipeline (9) de-
On the inner wall of nitre pipeline (9).
3. a kind of energy-saving, environmental protection boiler denitrification apparatus according to claim 1, it is characterised in that: the ammonia water spray gun (5)
There are two settings, and described two ammonia water spray guns (5) are oppositely arranged on denitration main body (3) inner sidewall.
4. a kind of energy-saving, environmental protection boiler denitrification apparatus according to claim 1, it is characterised in that: the denitration main body (3)
It is interior that the side of outlet flue (4) is provided with activated charcoal strainer (15) positioned at catalyst layer (7).
5. a kind of energy-saving, environmental protection boiler denitrification apparatus according to claim 4, it is characterised in that: the catalyst layer (7)
Including the first catalyst layer (16) and the second catalyst layer (17), second catalyst layer (17) is located at the first catalyst layer
(16) between activated charcoal strainer (15).
6. a kind of energy-saving, environmental protection boiler denitrification apparatus according to claim 5, it is characterised in that: first catalyst layer
(16) it is made of vanadic anhydride, second catalyst layer (17) is made of di-iron trioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384991.1U CN208194068U (en) | 2018-03-21 | 2018-03-21 | A kind of energy-saving, environmental protection boiler denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384991.1U CN208194068U (en) | 2018-03-21 | 2018-03-21 | A kind of energy-saving, environmental protection boiler denitrification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208194068U true CN208194068U (en) | 2018-12-07 |
Family
ID=64527301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820384991.1U Expired - Fee Related CN208194068U (en) | 2018-03-21 | 2018-03-21 | A kind of energy-saving, environmental protection boiler denitrification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208194068U (en) |
-
2018
- 2018-03-21 CN CN201820384991.1U patent/CN208194068U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |