CN206944213U - A kind of full load denitrification apparatus of station boiler - Google Patents
A kind of full load denitrification apparatus of station boiler Download PDFInfo
- Publication number
- CN206944213U CN206944213U CN201720791029.5U CN201720791029U CN206944213U CN 206944213 U CN206944213 U CN 206944213U CN 201720791029 U CN201720791029 U CN 201720791029U CN 206944213 U CN206944213 U CN 206944213U
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- Prior art keywords
- station boiler
- flue
- denitrification apparatus
- full load
- combustion chamber
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Abstract
The utility model discloses a kind of full load denitrification apparatus of station boiler, including station boiler SCR denitration device, full load denitrification apparatus is provided between the transfer passage and economizer, the full load denitrification apparatus is made up of combustion chamber, assisted heating device, burner, circulating fan, flue and flue gas recirculation device, assisted heating device is installed in the combustion chamber, circulating fan and flue gas recirculation device are also equipped with the flue.The full load denitrification apparatus of this station boiler, i.e. input assisted heating device operation after ignition of the boiler input coal dust, the fuel quantity of the burner of each assisted heating device is adjusted according to cigarette temperature and exhaust gas volumn, flue-gas temperature reaches more than 320 DEG C before making station boiler SCR denitration device, meet station boiler SCR denitration device normal operation, can meet station boiler from igniting to be normally incorporated into the power networks and during underload the operation of station boiler SCR denitration device requirement, reduce cost.
Description
Technical field
It the utility model is related to coal-burning boiler technical field, the full load denitrification apparatus of specifically a kind of station boiler.
Background technology
China's coal-burned industrial boiler is large number of, is one of main source of atmosphere pollution, and be mainly distributed on population
Intensive residential area and industrial area, tremendous influence is generated to local air quality.It is fast due to concentrated supply of heating in the city in recent years
The pollutant discharge amounts such as speed development, coal consumption sharp increase, nitrogen oxides (NOX) increase year by year, and atmosphere polluting problem is increasingly tight
Weight.During 12, country has put into effect the strict standard of control DS NOx Est, and improves constantly standard, and Environmental Protection Situation is very tight
High, station boiler has generally carried out the transformation of installation SCR denitration device at present, but nitrogen oxygen can occur in boiler startup and underload
The exceeded situation of compound, blowing out of having to when exceeded serious cause economic loss.
Utility model content
The purpose of this utility model is the full load denitrification apparatus for providing a kind of station boiler, possesses and avoids blowing out from realizing
Economic loss is reduced, the advantages of meeting country's up to standard to station boiler whole process denitration requirement, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical scheme：
A kind of full load denitrification apparatus of station boiler, including station boiler SCR denitration device, the station boiler SCR
Out of stock outlet flue is fixedly connected with the top of denitrification apparatus, the out of stock outlet flue is fixedly connected with transfer passage, the conveying
Be provided with full load denitrification apparatus between passage and economizer, the full load denitrification apparatus by combustion chamber, assisted heating device,
Burner, circulating fan, flue and flue gas recirculation device composition, the combustion chamber be arranged on transfer passage and economizer it
Between, combustion chamber is fixedly connected with transfer passage with economizer respectively, and assisted heating device is provided with the combustion chamber, and auxiliary adds
Burner is installed, the combustion chamber is also fixedly connected by flue with economizer, is also equipped with the flue in thermal
Circulating fan and flue gas recirculation device.
As further program of the utility model：The burner is micro- oil burner or neat gas burner.
As further program of the utility model：The combustion chamber is a kind of component of hollow-core construction.
As further program of the utility model：The combustion chamber is component made of a kind of heat proof material.
Compared with prior art, the utility model beneficial effect：
The full load denitrification apparatus of station boiler of the present utility model, station boiler SCR denitration device and economizer it
Between exhaust gases passes on one section of transformation turn into combustion chamber, assisted heating device is installed in combustion chamber, and burner is designed as installing micro- oil
Burner or neat gas burner, ignition of the boiler puts into i.e. input assisted heating device operation after coal dust, according to cigarette temperature and flue gas
Amount adjusts the fuel quantity of the burner of each assisted heating device, and flue-gas temperature reaches 320 DEG C before making station boiler SCR denitration device
More than, meet station boiler SCR denitration device normal operation, can meet that station boiler is to being normally incorporated into the power networks and low negative from lighting a fire
The requirement that station boiler SCR denitration device is run during lotus, cost is reduced, meet that country is up to standard to station boiler whole process denitration and want
Ask.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1- station boiler SCR denitration devices；The out of stock outlet flues of 2-；3- transfer passages；4- full load denitrification apparatus；
41- combustion chambers；42- assisted heating devices；43- burners；44- circulating fans；45- flues；46- flue gas recirculation devices；5-
Economizer.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of full load denitrification apparatus of station boiler, including power station pot
Stove SCR denitration device 1, coal dust input, station boiler SCR denitration device 1 are lighted a fire, and the top of station boiler SCR denitration device 1 is consolidated
Surely it is connected with out of stock outlet flue 2, out of stock outlet flue 2 is fixedly connected with transfer passage 3, the cigarette in station boiler SCR denitration device 1
Gas is transferred out by out of stock outlet flue 2 and transfer passage 3, and full load denitrification apparatus is provided between transfer passage 3 and economizer 5
4, full load denitrification apparatus 4 can improve the use range of station boiler SCR denitration device 1, boiler is put into operation in igniting
Ensure boiler export nitrogen oxides qualified discharge, also can guarantee that nitrogen oxides qualified during boiler at low load, can also avoid
When nitrogen oxides is exceeded serious, not blowing out, which is realized, reduces economic loss, and full load denitrification apparatus 4 is heated by combustion chamber 41, auxiliary
Device 42, burner 43, circulating fan 44, flue 45 and flue gas recirculation device 46 form, and it is logical that combustion chamber 41 is arranged on conveying
Between road 3 and economizer 5, combustion chamber 41 is a kind of component of hollow-core construction, by original station boiler SCR denitration device 1 with saving
One section is transformed on exhaust gases passes between coal device 5 turns into hollow combustion chamber 41, and combustion chamber 41 is made of a kind of heat proof material
Component, heat proof material can be heat resisting steel, ensure that combustion chamber 41 is heat-resisting using combustion chamber made of heat proof material 41, service life
Long, combustion chamber 41 is fixedly connected with transfer passage 3 with economizer 5 respectively, is kept the stability of connection, is provided with combustion chamber 41
Assisted heating device 42, burner 43 is provided with assisted heating device 42, and burner 43 is that micro- oil burner or natural gas fire
Burner, ignition of the boiler put into i.e. input assisted heating device 42 after coal dust and run, and are added according to cigarette temperature and each auxiliary of exhaust gas volumn adjustment
The fuel quantity of the burner 43 of thermal 42, the preceding flue-gas temperature of station boiler SCR denitration device 1 is set to reach more than 320 DEG C, it is full
The sufficient normal operation of station boiler SCR denitration device 1, the not blowing out when nitrogen oxides is exceeded serious is avoided to realize that reducing economy damages
Lose, meet country's requirement up to standard to station boiler whole process denitration, combustion chamber 41 is also fixed by flue 45 and economizer 5 to be connected
Connect, circulating fan 44 and flue gas recirculation device 46 are also equipped with flue 45, filled by circulating fan 44 and flue gas recirculation
Put 46 and the flue gas not up to standard in economizer 5 is placed into combustion chamber 41 and further handle, given off again after up to standard.
I.e. input assisted heating device 42 is run after ignition of the boiler input coal dust, and each auxiliary is adjusted according to cigarette temperature and exhaust gas volumn
The fuel quantity of the burner 43 of heater 42, flue-gas temperature reaches more than 320 DEG C before making station boiler SCR denitration device 1, full
The sufficient normal operation of station boiler SCR denitration device 1, is made in economizer 5 by circulating fan 44 and flue gas recirculation device 46
Flue gas not up to standard is placed into combustion chamber 41 and further handled, and is given off again after up to standard.
In summary：The full load denitrification apparatus of station boiler of the present utility model, in station boiler SCR denitration device 1
One section is transformed on exhaust gases passes between economizer 5 turns into combustion chamber 41, and assisted heating device 42, burning are installed in combustion chamber 41
Device 43 is designed as installing micro- oil burner or neat gas burner, and assisted heating device 42 is put into after ignition of the boiler input coal dust
Operation, the fuel quantity of the burner 43 of each assisted heating device 42 is adjusted according to cigarette temperature and exhaust gas volumn, makes station boiler SCR denitration
Flue-gas temperature reaches more than 320 DEG C before device 1, meets the normal operation of station boiler SCR denitration device 1, can meet station boiler
From igniting to be normally incorporated into the power networks and during underload the operation of station boiler SCR denitration device 1 requirement, reduce cost, meet state
Family's requirement up to standard to station boiler whole process denitration, improves the accommodation of station boiler SCR denitration device 1, makes boiler in point
It can be put into operation when fiery and ensure boiler export nitrogen oxides qualified discharge, also can guarantee that nitrogen oxides index is closed during boiler at low load
Lattice.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of full load denitrification apparatus of station boiler, including station boiler SCR denitration device (1), it is characterised in that：It is described
Out of stock outlet flue (2) is fixedly connected with the top of station boiler SCR denitration device (1), the out of stock outlet flue (2) is fixedly connected
There is transfer passage (3), full load denitrification apparatus (4) is provided between the transfer passage (3) and economizer (5), it is described complete negative
Lotus denitrification apparatus (4) by combustion chamber (41), assisted heating device (42), burner (43), circulating fan (44), flue (45) and
Flue gas recirculation device (46) is formed, and the combustion chamber (41) is arranged between transfer passage (3) and economizer (5), combustion chamber
(41) it is fixedly connected respectively with transfer passage (3) with economizer (5), assisted heating device is installed in the combustion chamber (41)
(42) burner (43), is installed, the combustion chamber (41) also passes through flue (45) and economizer on assisted heating device (42)
(5) it is fixedly connected, circulating fan (44) and flue gas recirculation device (46) is also equipped with the flue (45).
A kind of 2. full load denitrification apparatus of station boiler according to claim 1, it is characterised in that：The burner
(43) it is micro- oil burner or neat gas burner.
A kind of 3. full load denitrification apparatus of station boiler according to claim 1, it is characterised in that：The combustion chamber
(41) it is a kind of component of hollow-core construction.
A kind of 4. full load denitrification apparatus of station boiler according to claim 1, it is characterised in that：The combustion chamber
(41) it is component made of a kind of heat proof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791029.5U CN206944213U (en) | 2017-07-03 | 2017-07-03 | A kind of full load denitrification apparatus of station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791029.5U CN206944213U (en) | 2017-07-03 | 2017-07-03 | A kind of full load denitrification apparatus of station boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206944213U true CN206944213U (en) | 2018-01-30 |
Family
ID=61366671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720791029.5U Expired - Fee Related CN206944213U (en) | 2017-07-03 | 2017-07-03 | A kind of full load denitrification apparatus of station boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206944213U (en) |
-
2017
- 2017-07-03 CN CN201720791029.5U patent/CN206944213U/en not_active Expired - Fee Related
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| 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: 20180130 Termination date: 20190703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |