CN209549129U - A kind of wide load denitrating system of power plant boiler - Google Patents
A kind of wide load denitrating system of power plant boiler Download PDFInfo
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- CN209549129U CN209549129U CN201920156091.6U CN201920156091U CN209549129U CN 209549129 U CN209549129 U CN 209549129U CN 201920156091 U CN201920156091 U CN 201920156091U CN 209549129 U CN209549129 U CN 209549129U
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Abstract
The utility model discloses a kind of wide load denitrating systems of power plant boiler, including boiler, exhaust fan, first heat exchanger, second heat exchanger, dust-extraction unit and SNCR, the boiler side is connect with SNCR, the boiler upper surface middle part has been bolted to connection exhaust fan, and described exhaust fan one end has been bolted to connection air draft pipe；The utility model is by being equipped with exhaust fan at the top of boiler, the flue gas at the top of boiler will be remained in by exhaust fan be collected and concentrate be delivered in first heat exchanger and second heat exchanger, effectively make flue-gas temperature and ambient temperature matches and avoids liquefying caused by because of the temperature difference or the generation of gasification phenomenon, then effectively reach deimpurity purpose in dust-extraction unit, it is discharged after then being handled by out of stock device and desulfurizer flue gas by check valve, and then the out of stock efficiency of boiler is greatly improved, remove the flue gas of remaining at the top of boiler.
Description
Technical field
The utility model relates to out of stock equipment technical field, specially a kind of wide load denitrating system of power plant boiler.
Background technique
Power plant boiler is made of boiler body and ancillary equipment, it is burnt using fuel (such as coal, heavy oil, natural gas)
When the heat that generates so that water is become the superheated steam with certain temperature and pressure, it is out of stock to be to drive steam turbine generator to generate electricity
The process that denitrification is removed in combustion product gases prevents from generating excessive NOx pollution environment in boiler after coal combustion, and existing skill
The sulfur removal technology of mainstream only still can remain a certain amount of pollutant by this two kinds of out of stock technologies and make in art for SCR and SNCR
At the pollution of environment:
A certain amount of flue gas can be remained at the top of boiler when carrying out out of stock to boiler in the prior art to need to handle, and
Single SNCR denitration process can not effectively realize the flue gas sloughed at the top of boiler, it is therefore desirable to carry out to the flue gas in boiler
Effective out of stock operation needs to be equipped with targetedly out of stock equipment and is purged, and is directed to the out of stock system of this mode in the prior art
System is improved not enough so can not meet needed for the prior art.
Utility model content
The purpose of this utility model is to provide a kind of wide load denitrating systems of power plant boiler, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of power plant boiler wide load denitration system
System, including boiler, exhaust fan, first heat exchanger, second heat exchanger, dust-extraction unit and SNCR, the boiler side with
SNCR connection, the boiler upper surface middle part have been bolted to connection exhaust fan, and described exhaust fan one end is solid by bolt
Surely it is connected with air draft pipe, described air draft pipe one end has been bolted to connection first heat exchanger and the second heat exchange
Device, the first heat exchanger include heat exchanging pipe, and the first heat exchanger and second heat exchanger pass through heat-exchange tube
Road connection, described heat exchanging pipe one end have been bolted to connection dust-extraction unit, and described dust-extraction unit one end passes through bolt
It is fixedly connected with cleaning shaft, described cleaning shaft one end has been bolted to connection out of stock device, the out of stock device one
End has been bolted to connection out of stock pipeline, and described out of stock pipeline one end has been bolted to connection desulfurizer.
Preferably, described desulfurizer one end has been bolted to connection desulfuration pipeline, and described desulfuration pipeline one end is logical
It crosses bolt and is fixedly connected with check valve.
Preferably, the exhaust fan, first heat exchanger, second heat exchanger, dust-extraction unit, out of stock device and desulfurization dress
It sets and is electrically connected with external power supply.
Preferably, the air draft pipe wall thickness dimension is greater than heat exchanging pipe wall thickness dimension, the heat exchanging pipe wall thickness
Size is greater than cleaning shaft wall thickness dimension, and the cleaning shaft, out of stock pipeline are identical with desulfuration pipeline wall thickness dimension.
Preferably, it is equipped with denitrfying agent inside the out of stock device, is equipped with desulfurizing agent inside the desulfurizer.
Compared with prior art, the utility model has the beneficial effects that
The utility model carries out preliminary take off to the flue gas in boiler by connecting in boiler side with SNCR process equipment
Operation is sold, and is equipped with exhaust fan at the top of boiler, the flue gas remained at the top of boiler is collected by union by exhaust fan
In be delivered in first heat exchanger and second heat exchanger, effectively make flue-gas temperature and ambient temperature match avoid because
Liquefaction caused by the temperature difference or the generation for the phenomenon that gasifies, then effectively reach deimpurity purpose, then in dust-extraction unit
It is discharged after being handled by out of stock device and desulfurizer flue gas by check valve, and then greatly improves the out of stock of boiler
Efficiency removes the flue gas of remaining at the top of boiler.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
In figure: 1- boiler；2- exhaust fan；21- air draft pipe；3- first heat exchanger；31- heat exchanging pipe；4- second
Heat exchanger；5- dust-extraction unit；51- cleaning shaft；The out of stock device of 6-；The out of stock pipeline of 61-；7- desulfurizer；71- desulfurization pipe
Road；8- check valve；9-SNCR.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-1 is please referred to, the utility model provides a kind of technical solution: a kind of wide load denitrating system of power plant boiler,
Including boiler 1, exhaust fan 2, first heat exchanger 3, second heat exchanger 4, dust-extraction unit 5 and SNCR9,1 side of boiler
It is connect with SNCR9, the SNCR technology is applied independently in boiler 1, and 1 upper surface middle part of boiler is bolted company
It is connected to exhaust fan 2,2 model of exhaust fan is specially the exhaust fan of Y5-47, and described 2 one end of exhaust fan is bolted company
It is connected to air draft pipe 21, described 21 one end of air draft pipe has been bolted to connection first heat exchanger 3 and the second heat exchange
Device 4,3 concrete model of first heat exchanger are that HRV half holds formula heat exchanger, and 4 concrete model of second heat exchanger is
BR1.6 board-like cooler, the first heat exchanger 3 include heat exchanging pipe 31, the first heat exchanger 3 and the second heat
Exchanger 4 is connected by heat exchanging pipe 31, and described 31 one end of heat exchanging pipe has been bolted to connection dust-extraction unit 5,
5 concrete model of dust-extraction unit is the filter cartridge dust remover of YX609573285, and described 5 one end of dust-extraction unit is bolted
It is connected with cleaning shaft 51, described 51 one end of cleaning shaft has been bolted to connection out of stock device 6, the out of stock device 6
NOx is restored with ammonia or urea in 850 to 1050 degree ranges, described out of stock 6 one end of device has been bolted to connection out of stock
Pipeline 61, described out of stock 61 one end of pipeline have been bolted to connection desulfurizer 7, and the desulfurizer 7 is desulfurizing tower.
Described 7 one end of desulfurizer has been bolted to connection desulfuration pipeline 71, and described 71 one end of desulfuration pipeline passes through
Bolt is fixedly connected with check valve 8, so that gas orientation discharge, the exhaust fan 2, first heat exchanger 3, second heat exchanger
4, dust-extraction unit 5, out of stock device 6 and desulfurizer 7 are electrically connected with external power supply, facilitate user's control, the exhaust column
21 wall thickness dimension of road is greater than 31 wall thickness dimension of heat exchanging pipe, and 31 wall thickness dimension of heat exchanging pipe is greater than 51 wall of cleaning shaft
Thick size, the cleaning shaft 51, out of stock pipeline 61 are identical with 71 wall thickness dimension of desulfuration pipeline, reinforce the intensity of each pipeline with full
The different demand of foot is equipped with denitrfying agent inside the out of stock device 6, is equipped with desulfurizing agent inside the desulfurizer 7, improves out of stock
With the efficiency of desulfurization.
Boiler 1: first connecting by working principle with SNCR process equipment when in use, so that the flue gas progress in boiler is out of stock
Then exhaust fan 2 and external power supply are powered, exhaust fan 2 are worked normally by operation, so that residual top in boiler
Flue gas extract and is delivered in first heat exchanger 3 and second heat exchanger 4 by air draft pipe 21 to increase heat exchange effect
Then rate is delivered to the impurity removed in flue gas in dust-extraction unit 5 by heat exchanging pipe 31, then first by cleaning shaft 51
It is delivered in out of stock device 6 and carries out out of stock operation, treated flue gas by out of stock pipeline 61 is then delivered to desulfurizer 7
Treated flue gas is finally discharged in air by middle carry out desulfuration operations by check valve 8.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of wide load denitrating system of power plant boiler, including boiler (1), exhaust fan (2), first heat exchanger (3), second
Heat exchanger (4), dust-extraction unit (5) and SNCR (9), it is characterised in that: boiler (1) side is connect with SNCR (9), described
Boiler (1) upper surface middle part has been bolted to connection exhaust fan (2), and described exhaust fan (2) one end is bolted company
It is connected to air draft pipe (21), described air draft pipe (21) one end has been bolted to connection first heat exchanger (3) and second
Heat exchanger (4), the first heat exchanger (3) include heat exchanging pipe (31), the first heat exchanger (3) and the second heat
Exchanger (4) is connected by heat exchanging pipe (31), and described heat exchanging pipe (31) one end has been bolted to connection dedusting
Device (5), described dust-extraction unit (5) one end have been bolted to connection cleaning shaft (51), the cleaning shaft (51) one
End has been bolted to connection out of stock device (6), and described out of stock device (6) one end has been bolted to connection out of stock pipeline
(61), described out of stock pipeline (61) one end has been bolted to connection desulfurizer (7).
2. the wide load denitrating system of a kind of power plant boiler according to claim 1, it is characterised in that: the desulfurizer
(7) one end has been bolted to connection desulfuration pipeline (71), and described desulfuration pipeline (71) one end has been bolted to connection
Check valve (8).
3. the wide load denitrating system of a kind of power plant boiler according to claim 1, it is characterised in that: the exhaust fan
(2), first heat exchanger (3), second heat exchanger (4), dust-extraction unit (5), out of stock device (6) and desulfurizer (7) with
External power supply is electrically connected.
4. the wide load denitrating system of a kind of power plant boiler according to claim 1, it is characterised in that: the air draft pipe
(21) wall thickness dimension is greater than heat exchanging pipe (31) wall thickness dimension, and heat exchanging pipe (31) wall thickness dimension is greater than cleaning shaft
(51) wall thickness dimension, the cleaning shaft (51), out of stock pipeline (61) are identical with desulfuration pipeline (71) wall thickness dimension.
5. the wide load denitrating system of a kind of power plant boiler according to claim 1, it is characterised in that: the out of stock device
(6) internal to be equipped with denitrfying agent, desulfurizing agent is equipped with inside the desulfurizer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156091.6U CN209549129U (en) | 2019-01-29 | 2019-01-29 | A kind of wide load denitrating system of power plant boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156091.6U CN209549129U (en) | 2019-01-29 | 2019-01-29 | A kind of wide load denitrating system of power plant boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209549129U true CN209549129U (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920156091.6U Active CN209549129U (en) | 2019-01-29 | 2019-01-29 | A kind of wide load denitrating system of power plant boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209549129U (en) |
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2019
- 2019-01-29 CN CN201920156091.6U patent/CN209549129U/en active Active
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