CN207445986U - A kind of system of twin furnace synthetic operation full load denitration - Google Patents
A kind of system of twin furnace synthetic operation full load denitration Download PDFInfo
- Publication number
- CN207445986U CN207445986U CN201721218571.8U CN201721218571U CN207445986U CN 207445986 U CN207445986 U CN 207445986U CN 201721218571 U CN201721218571 U CN 201721218571U CN 207445986 U CN207445986 U CN 207445986U
- Authority
- CN
- China
- Prior art keywords
- air preheater
- flue gas
- boiler
- economizer
- flue
- 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.)
- Active
Links
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model is related to a kind of system of twin furnace synthetic operation full load denitration, including No.1 boiler plant and No. two boiler plants；No. two boiler plants include No. two boilers, No. two economizers, No. two economizer exit flue duct bypass baffles, No. two denitrification apparatus inlet flue gas controllable registers, No. two Benitration reactors, No. two air preheater gas approach by-pass dampers and No. two air preheaters.Tthe utility model system flow is simple, stable, and investment is low with operating cost, do not influence boiler efficiency, it is workable, applicability is respectively provided with to newly-built denitrification apparatus or the transformation of active service denitrification apparatus, therefore with good environmental protection, economic benefit and is widely applied prospect.
Description
Technical field
The utility model belongs to industrial waste gas purifying environmental protection and energy field, more particularly to a kind of twin furnace synthetic operation are born entirely
The system of lotus denitration.
Background technology
Energy resource structure of the China based on coal will not change within the long duration, therefore, control coal-fired flue-gas NOxDischarge
It is an important process of China's control atmosphere pollution.With NH3For the NO of reducing agentxSelective catalytic reduction（SCR）Technology is near
Most widely used, most effective coal-fired flue gas denitration technology over year.On the other hand, there is operation smoke temperature requirement in SCR denitration,
Generally at 300-420 DEG C, catalyst inactivation will be caused less than the operation of this temperature range, this results in coal unit in the machine that opens or low
Denitrification apparatus can not be run during load operation, and then can not achieve qualified discharge.Therefore, how SCR denitration device is effectively solved
The problem that puts into operation under the machine that opens and underrun becomes the important topic in current coal-fired flue gas denitration field.
In view of the above-mentioned problems, the utility model proposes a kind of System and method for of twin furnace synthetic operation full load denitration, i.e.,
Bypass flue is set respectively in two stove economizer exits and air preheater entrance, when unit opens machine or underrun, is passed through
Part or all of gas bypass to adjacent denitrification apparatus is subjected to denitration, so as to fulfill unit full load denitration.
With the relevant patent of the utility model, such as CN 201510701175.X ---《Economizer sectional boiler full load is low
NOxDevice and remodeling method》, it is by by economizer step-by-step arrangement, to meet underload denitration service requirement, but for active service
Its improvement project amount of unit is larger, and due to must take into consideration oepration at full load overtemperatute, underload test limited extent, nothing
The denitration operation in machine stage is opened in method realization.
With the relevant patent of the utility model, such as 204962817 U of CN ---《The SCR flue gases that full load mode puts into operation take off
Nitre system》, it is that combustion-compensating device is set on the denitration flue between boiler economizer and SCR flue gas denitration reactors, passes through benefit
The flue-gas temperature during device improves the non-steady combustion load under ignition of the boiler to minimum steady combustion load condition is fired, so as to fulfill boiler
From igniting to the full load denitrating flue gas under any load of 100%BMCR operating modes.But since excessive fuel consumption being needed to improve cigarette
Temperature, there are operating cost it is higher the problem of.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiency in the prior art, and a kind of structure design is provided and is closed
Reason, bears entirely for current SCR denitration device in the machine that opens and the twin furnace synthetic operation for the problem that cannot put into operation during underrun
The system of lotus denitration.
The technical scheme in the invention for solving the above technical problem is：A kind of twin furnace synthetic operation full load denitration
System, it is characterised in that：Including No.1 boiler plant and No. two boiler plants；
No.1 boiler plant includes No.1 boiler, No.1 economizer, No.1 economizer exit flue duct bypass baffle, No.1 and takes off
Nitre device portal gas proportioning damper, No.1 Benitration reactor, No.1 air preheater gas approach by-pass damper and No.1 air preheater,
No.1 boiler, No.1 economizer, No.1 denitrification apparatus inlet flue gas controllable register, No.1 Benitration reactor and No.1 air preheater edge
Flow of flue gas direction is set gradually, and No.1 boiler is communicated with No.1 flue, No.1 economizer, No.1 denitrification apparatus inlet flue gas tune
Section baffle, No.1 Benitration reactor and No.1 air preheater are arranged in No.1 flue, No.1 economizer exit flue duct bypass gear
Plate is arranged between No.1 economizer and No.1 denitrification apparatus inlet flue gas controllable register, No.1 air preheater gas approach bypass gear
Plate is arranged between No.1 Benitration reactor and No.1 air preheater；No.1 opening is provided on No.1 flue and No. two are open, one
In No.1 opening, No.1 air preheater gas approach by-pass damper is arranged on No. two for number economizer exit flue duct bypass baffle plate setting
In opening；
No. two boiler plants take off including No. two boilers, No. two economizers, No. two economizer exit flue duct bypass baffles, No. two
Nitre device portal gas proportioning damper, No. two Benitration reactors, No. two air preheater gas approach by-pass dampers and No. two air preheaters,
No. two boilers, No. two economizers, No. two denitrification apparatus inlet flue gas controllable registers, No. two Benitration reactors and No. two air preheater edges
Flow of flue gas direction is set gradually, and No. two boilers are communicated with No. two flues, No. two economizers, No. two denitrification apparatus inlet flue gas tune
Section baffle, No. two Benitration reactors and No. two air preheaters are arranged in No. two flues, No. two economizer exit flue duct bypass gears
Plate is arranged between No. two economizers and No. two denitrification apparatus inlet flue gas controllable registers, No. two air preheater gas approach bypass gears
Plate is arranged between No. two Benitration reactors and No. two air preheaters；No. three openings are provided on No. two flues and No. four are open, two
In No. three openings, No. two air preheater gas approach by-pass dampers are arranged on No. four for number economizer exit flue duct bypass baffle plate setting
In opening；
It is connected between No.1 opening and No. three openings by No. three flues, passes through No. four between No. two openings and No. four openings
Flue connects.No. three flues and No. four flues are gas bypass.
Economizer exit bypass flue gas proportioning damper, No. four flues are provided in No. three flues described in the utility model
Inside it is provided with air preheater entrance bypass flue gas proportioning damper.
A kind of operation method of the system of twin furnace synthetic operation full load denitration, it is characterised in that：
The flue gas that No.1 boiler generates is successively by No.1 economizer, No.1 denitrification apparatus inlet flue gas controllable register, one
It is number de-
Nitre reactor and No.1 air preheater and then discharge；
The flue gas that No. two boilers generate is successively by No. two economizers, No. two denitrification apparatus inlet flue gas controllable registers, two
It is number de-
Nitre reactor and No. two air preheaters and then discharge；
When No.1 boiler is heavy-duty service and No. two boilers are Qi Jishi, by No. three flues first by No. two economizers
Go out
Before the flue gas of mouth leads to No.1 Benitration reactor, flue gas is after No.1 Benitration reactor carries out denitration reaction, then leads to
Overregulate one
The aperture of number air preheater gas approach by-pass damper and No. two air preheater gas approach by-pass dampers, by No.1 boiler
Part cigarette
Qi leel flow to the entrance of No. two air preheaters, so as to fulfill in the denitrating flue gas for opening the machine stage of No. two boilers；
When No.1 boiler is heavy-duty service, No. two boilers are underrun and flue gas is unsatisfactory for denitration service requirement
When, by adjusting the aperture of No.1 economizer exit flue duct bypass baffle and No. two economizer exit flue duct bypass baffles, simultaneously
It adjusts air-introduced machine to contribute, the partial fume of No.1 boiler is led to the outlet of No. two economizers, is mixed with the flue gas of No. two boilers
To improve the smoke temperature of No. two boilers, in No. two Benitration reactors after denitration reaction, then entered by adjusting No.1 air preheater
The aperture of mouth flue duct bypass baffle and No. two air preheater gas approach by-pass dampers, by the inlet smoke backflow of No. two air preheaters
To the entrance of No.1 air preheater, so as to meet denitration requirement of No. two boilers under underrun；
When No. two boilers are heavy-duty service and No.1 boiler is Qi Jishi, by No. three flues first by No.1 economizer
Go out
Before the flue gas of mouth leads to No. two Benitration reactors, flue gas is after No. two Benitration reactors carry out denitration reaction, then leads to
Overregulate two
The aperture of number air preheater gas approach by-pass damper and No.1 air preheater gas approach by-pass damper, by No. two boilers
Part cigarette
Qi leel flow to the entrance of No.1 air preheater, so as to fulfill in the denitrating flue gas for opening the machine stage of No.1 boiler；
When No. two boilers are heavy-duty service, No.1 boiler is underrun and flue gas is unsatisfactory for denitration service requirement
When, by adjusting the aperture of No. two economizer exit flue duct bypass baffles and No.1 economizer exit flue duct bypass baffle, simultaneously
It adjusts air-introduced machine to contribute, the partial fume of No. two boilers is led to the outlet of No.1 economizer, is mixed with the flue gas of No.1 boiler
To improve the smoke temperature of No.1 boiler, in No.1 Benitration reactor after denitration reaction, then by adjust No. two air preheaters enter
The aperture of mouth flue duct bypass baffle and No.1 air preheater gas approach by-pass damper, by the inlet smoke backflow of No.1 air preheater
To the entrance of No. two air preheaters, so as to meet denitration requirement of the No.1 boiler under underrun.
The utility model is adjusting No.1 economizer exit flue duct bypass baffle and No. two economizer exit flue duct bypass gears
While the aperture of plate, the aperture of economizer exit bypass flue gas proportioning damper is adjusted；
Adjusting the aperture of No.1 air preheater gas approach by-pass damper and No. two air preheater gas approach by-pass dampers
Meanwhile adjust the aperture of air preheater entrance bypass flue gas proportioning damper.
The design discharge of No. three flues of the utility model and No. four flues need to according to concrete engineering technical parameter and require into
Row is adjusted, and passes through the flow of No. three flues of monitoring and the flow and No.1 Benitration reactor of No. four flues in actual operation
Inlet flue gas temperature and No. two Benitration reactors inlet flue gas temperature, to No.1 economizer exit flue duct bypass baffle, No.1 air preheater
Gas approach by-pass damper, No. two economizer exit flue duct bypass baffles and No. two air preheater gas approach by-pass dampers are adjusted
It saves to meet operation demand.
Compared with prior art, Tthe utility model system flow is simple, stable for the utility model, investment and operating cost
It is low, boiler efficiency is not influenced, it is workable, applicability is respectively provided with to newly-built denitrification apparatus or the transformation of active service denitrification apparatus, because
This is with good environmental protection, economic benefit and is widely applied prospect.The utility model passes through the economizer exit in two stoves
Bypass flue is set respectively with air preheater entrance, when unit opens machine or underrun, by will be by part or all of flue gas
Road to adjacent denitrification apparatus carries out denitration, so as to fulfill unit full load denitration.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of the utility model embodiment 1 and 2.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through embodiment the utility model is described in further detail, following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment 1.
Referring to Fig. 1.
The present embodiment is a kind of system of twin furnace synthetic operation full load denitration, including No.1 boiler plant and No. two boilers
Device.
No.1 boiler plant include No.1 boiler 11, No.1 economizer 12, No.1 economizer exit flue duct bypass baffle 13,
No.1 denitrification apparatus inlet flue gas controllable register 14, No.1 Benitration reactor 15, No.1 air preheater gas approach by-pass damper 16
With No.1 air preheater 17, No.1 boiler 11, No.1 economizer 12, No.1 denitrification apparatus inlet flue gas controllable register 14, No.1 take off
Nitre reactor 15 and No.1 air preheater 17 are set gradually along flow of flue gas direction, and No.1 boiler 11 is communicated with No.1 flue, No.1
Economizer 12, No.1 denitrification apparatus inlet flue gas controllable register 14, No.1 Benitration reactor 15 and No.1 air preheater 17 are respectively provided with
In No.1 flue, No.1 economizer exit flue duct bypass baffle 13 is arranged on No.1 economizer 12 and No.1 denitrification apparatus entrance
Between gas proportioning damper 14, No.1 air preheater gas approach by-pass damper 16 is arranged on No.1 Benitration reactor 15 and No.1 is empty
Between pre- device 17；No.1 opening and No. two openings are provided on No.1 flue, No.1 economizer exit flue duct bypass baffle 13 is set
It puts in No.1 opening, No.1 air preheater gas approach by-pass damper 16 is arranged in No. two openings.
No. two boiler plants include No. two economizer 22, two of boiler 21, two economizer exit flue duct bypass baffles 23,
No. two air preheater gas approach by-pass dampers 26 of Benitration reactor 25, two of denitrification apparatus inlet flue gas controllable register 24, two
With No. two air preheaters 27, No. two economizer 22, two of boiler 21, two denitrification apparatus inlet flue gas controllable registers 24, two take off
Nitre reactor 25 and No. two air preheaters 27 are set gradually along flow of flue gas direction, and No. two boilers 21 are communicated with No. two flues, No. two
The Benitration reactor 25 of denitrification apparatus inlet flue gas controllable register 24, two of economizer 22, two and No. two air preheaters 27 are respectively provided with
In No. two flues, No. two economizer exit flue duct bypass baffles 23 are arranged on No. two economizers 22 and No. two denitrification apparatus entrances
Between gas proportioning damper 24, No. two air preheater gas approach by-pass dampers 26 are arranged on No. two Benitration reactors 25 and No. two skies
Between pre- device 27；No. three openings and No. four openings are provided on No. two flues, No. two economizer exit flue duct bypass baffles 23 are set
It puts in No. three openings, No. two air preheater gas approach by-pass dampers 26 are arranged in No. four openings.
It is connected between No.1 opening and No. three openings by No. three flues, passes through No. four between No. two openings and No. four openings
Flue connects.No. three flues and No. four flues are gas bypass.
Preferably, being provided with economizer exit bypass flue gas proportioning damper 8 in No. three flues, set in No. four flues
It is equipped with air preheater entrance bypass flue gas proportioning damper 9.
The present embodiment additionally provides the operation method of the system of twin furnace synthetic operation full load denitration, and specific steps are such as
Under：
The flue gas that No.1 boiler 11 generates is successively by No.1 economizer 12, No.1 denitrification apparatus inlet flue gas controllable register
14、
No.1 Benitration reactor 15 and No.1 air preheater 17 and then discharge；The flue gas that No. two boilers 21 generate passes through two successively
Number Benitration reactor 25 of denitrification apparatus inlet flue gas controllable register 24, two of economizer 22, two and No. two air preheaters 27 are then
Discharge.
When No.1 boiler 11 is heavy-duty service and No. two boilers 21 are Qi Jishi, the flue gas that No. two boilers 21 generate leaves
Two
Number boiler 21 initially enters No. two economizers 22 and exchanges heat, and opens No.1 economizer exit flue duct bypass baffle 13, two
Number economizer exit flue duct bypass baffle 23, No.1 denitrification apparatus inlet flue gas controllable register 14 and economizer exit bypass flue
Gas proportioning damper 8 closes No. two denitrification apparatus inlet flue gas controllable registers 24, by No. three flues first by No. two economizers
The flue gas of 22 outlet mixes before leading to No.1 Benitration reactor 15 with the flue gas in No.1 flue, then in No.1 denitration reaction
Denitration reaction is carried out in device 15, then opens No.1 air preheater gas approach by-pass damper 16 and No. two air preheater gas approach bypasses
Baffle 26 adjusts the aperture of air preheater entrance bypass flue gas proportioning damper 9, the partial fume of No.1 boiler 11 is branched to
The entrance of No. two air preheaters 27, so as to fulfill in the denitrating flue gas for opening the machine stage of No. two boilers 21.
When No.1 boiler 11 is heavy-duty service, No. two boilers 21 are underrun and flue gas be unsatisfactory for denitration operation will
When asking, the flue gas that No.1 boiler 11 generates leaves No.1 boiler 11, exchanges heat into No.1 economizer 12, opens No.1 and saves coal
Device exhaust pass by-pass damper 13 and No. two economizer exit flue duct bypass baffles 23, while adjust No.1 denitrification apparatus entrance cigarette
14, No. two denitrification apparatus inlet flue gas controllable registers 24 of gas controllable register and economizer exit bypass flue gas proportioning damper 8
Aperture, while adjust air-introduced machine output, the partial fume of No.1 boiler 11 is led to the outlet of No. two economizers 22, with No. two
The flue gas of boiler 21 mixes to improve the smoke temperature of No. two boilers 21, in No. two Benitration reactors 25 after denitration reaction, then
By opening No.1 air preheater gas approach by-pass damper 16 and No. two air preheater gas approach by-pass dampers 26, air preheater is adjusted
The aperture of entrance bypass flue gas proportioning damper 9, by the inlet smoke backflow of No. two air preheaters 27 to No.1 air preheater 17
Entrance, so as to meet denitration requirement of No. two boilers 21 under underrun.
The design discharge of No. three flues and No. four flues need to be adjusted according to concrete engineering technical parameter with requirement, in reality
By monitoring the flow of No. three flues and the inlet flue gas temperature of the flow of No. four flues and No.1 Benitration reactor 15 in the operation of border
With the inlet flue gas temperature of No. two Benitration reactors 25, to No.1 economizer exit flue duct bypass baffle 13, No.1 air preheater entrance cigarette
16, No. two economizer exit flue duct bypass baffles 23 of road by-pass damper and No. two air preheater gas approach by-pass dampers 26 are adjusted
It saves to meet operation demand.
It should be noted that high load capacity and underload are defined according to actual demand, those skilled in the art can
To be judged according to itself, the implementation of the present embodiment will not be had an impact.
Embodiment 2.
Referring to Fig. 1.
The present embodiment is a kind of system of twin furnace synthetic operation full load denitration, including No.1 boiler plant and No. two boilers
Device.
No.1 boiler plant include No.1 boiler 11, No.1 economizer 12, No.1 economizer exit flue duct bypass baffle 13,
No.1 denitrification apparatus inlet flue gas controllable register 14, No.1 Benitration reactor 15, No.1 air preheater gas approach by-pass damper 16
With No.1 air preheater 17, No.1 boiler 11, No.1 economizer 12, No.1 denitrification apparatus inlet flue gas controllable register 14, No.1 take off
Nitre reactor 15 and No.1 air preheater 17 are set gradually along flow of flue gas direction, and No.1 boiler 11 is communicated with No.1 flue, No.1
Economizer 12, No.1 denitrification apparatus inlet flue gas controllable register 14, No.1 Benitration reactor 15 and No.1 air preheater 17 are respectively provided with
In No.1 flue, No.1 economizer exit flue duct bypass baffle 13 is arranged on No.1 economizer 12 and No.1 denitrification apparatus entrance
Between gas proportioning damper 14, No.1 air preheater gas approach by-pass damper 16 is arranged on No.1 Benitration reactor 15 and No.1 is empty
Between pre- device 17；No.1 opening and No. two openings are provided on No.1 flue, No.1 economizer exit flue duct bypass baffle 13 is set
It puts in No.1 opening, No.1 air preheater gas approach by-pass damper 16 is arranged in No. two openings.
No. two boiler plants include No. two economizer 22, two of boiler 21, two economizer exit flue duct bypass baffles 23,
No. two air preheater gas approach by-pass dampers 26 of Benitration reactor 25, two of denitrification apparatus inlet flue gas controllable register 24, two
With No. two air preheaters 27, No. two economizer 22, two of boiler 21, two denitrification apparatus inlet flue gas controllable registers 24, two take off
Nitre reactor 25 and No. two air preheaters 27 are set gradually along flow of flue gas direction, and No. two boilers 21 are communicated with No. two flues, No. two
The Benitration reactor 25 of denitrification apparatus inlet flue gas controllable register 24, two of economizer 22, two and No. two air preheaters 27 are respectively provided with
In No. two flues, No. two economizer exit flue duct bypass baffles 23 are arranged on No. two economizers 22 and No. two denitrification apparatus entrances
Between gas proportioning damper 24, No. two air preheater gas approach by-pass dampers 26 are arranged on No. two Benitration reactors 25 and No. two skies
Between pre- device 27；No. three openings and No. four openings are provided on No. two flues, No. two economizer exit flue duct bypass baffles 23 are set
It puts in No. three openings, No. two air preheater gas approach by-pass dampers 26 are arranged in No. four openings.
It is connected between No.1 opening and No. three openings by No. three flues, passes through No. four between No. two openings and No. four openings
Flue connects.No. three flues and No. four flues are gas bypass.
Preferably, being provided with economizer exit bypass flue gas proportioning damper 8 in No. three flues, set in No. four flues
It is equipped with air preheater entrance bypass flue gas proportioning damper 9.
The present embodiment additionally provides the operation method of the system of twin furnace synthetic operation full load denitration, and specific steps are such as
Under：
The flue gas that No.1 boiler 11 generates is successively by No.1 economizer 12, No.1 denitrification apparatus inlet flue gas controllable register
14、
No.1 Benitration reactor 15 and No.1 air preheater 17 and then discharge；The flue gas that No. two boilers 21 generate passes through two successively
Number Benitration reactor 25 of denitrification apparatus inlet flue gas controllable register 24, two of economizer 22, two and No. two air preheaters 27 are then
Discharge.
When No. two boilers 21 are heavy-duty service and No.1 boiler 11 is Qi Jishi, the flue gas that No.1 boiler 11 generates leaves
One
Number boiler 11 initially enters No.1 economizer 12 and exchanges heat, and opens No.1 economizer exit flue duct bypass baffle 13, two
Number 23, No. two denitrification apparatus inlet flue gas controllable registers 24 of economizer exit flue duct bypass baffle and economizer exit bypass flue
Gas proportioning damper 8 closes No.1 denitrification apparatus inlet flue gas controllable register 14, by No. three flues first by No.1 economizer
The flue gas of 12 outlet mixes before leading to No. two Benitration reactors 25 with the flue gas in No. two flues, then in No. two denitration reactions
Denitration reaction is carried out in device 25, then opens No.1 air preheater gas approach by-pass damper 16 and No. two air preheater gas approach bypasses
Baffle 26 adjusts the aperture of air preheater entrance bypass flue gas proportioning damper 9, the partial fume of No. two boilers 21 is branched to
The entrance of No.1 air preheater 17, so as to fulfill in the denitrating flue gas for opening the machine stage of No.1 boiler 11.
When No. two boilers 21 are heavy-duty service, No.1 boiler 11 is underrun and flue gas be unsatisfactory for denitration operation will
When asking, the flue gas that No. two boilers 21 generate leaves No. two boilers 21, exchanges heat into No. two economizers 22, opens No.1 and saves coal
Device exhaust pass by-pass damper 13 and No. two economizer exit flue duct bypass baffles 23, while adjust No.1 denitrification apparatus entrance cigarette
14, No. two denitrification apparatus inlet flue gas controllable registers 24 of gas controllable register and economizer exit bypass flue gas proportioning damper 8
Aperture, while adjust air-introduced machine output, the partial fume of No. two boilers 21 is led to the outlet of No.1 economizer 12, with No.1
The flue gas of boiler 11 mixes to improve the smoke temperature of No.1 boiler 11, in No.1 Benitration reactor 15 after denitration reaction, then
By opening No.1 air preheater gas approach by-pass damper 16 and No. two air preheater gas approach by-pass dampers 26, air preheater is adjusted
The aperture of entrance bypass flue gas proportioning damper 9, by the inlet smoke backflow of No.1 air preheater 17 to No. two air preheaters 27
Entrance, so as to meet denitration requirement of the No.1 boiler 11 under underrun.
The design discharge of No. three flues and No. four flues need to be adjusted according to concrete engineering technical parameter with requirement, in reality
By monitoring the flow of No. three flues and the inlet flue gas temperature of the flow of No. four flues and No.1 Benitration reactor 15 in the operation of border
With the inlet flue gas temperature of No. two Benitration reactors 25, to No.1 economizer exit flue duct bypass baffle 13, No.1 air preheater entrance cigarette
16, No. two economizer exit flue duct bypass baffles 23 of road by-pass damper and No. two air preheater gas approach by-pass dampers 26 are adjusted
It saves to meet operation demand.
It should be noted that high load capacity and underload are defined according to actual demand, those skilled in the art can
To be judged according to itself, the implementation of the present embodiment will not be had an impact.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and principles according to described in the utility model patent concept are done, are wrapped
It includes in the protection domain of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or substitutes in a similar way, without departing from the knot of the utility model
Structure surmounts scope defined in the claims, all should belong to the protection range of the utility model.
Claims (2)
1. a kind of system of twin furnace synthetic operation full load denitration, it is characterised in that：Including No.1 boiler plant and No. two boilers
Device；
No.1 boiler plant includes No.1 boiler, No.1 economizer, No.1 economizer exit flue duct bypass baffle, No.1 denitration dress
Posting port gas proportioning damper, No.1 Benitration reactor, No.1 air preheater gas approach by-pass damper and No.1 air preheater, No.1
Boiler, No.1 economizer, No.1 denitrification apparatus inlet flue gas controllable register, No.1 Benitration reactor and No.1 air preheater are along flue gas
Flow direction is set gradually, and No.1 boiler is communicated with No.1 flue, and No.1 economizer, No.1 denitrification apparatus inlet flue gas adjust gear
Plate, No.1 Benitration reactor and No.1 air preheater are arranged in No.1 flue, and No.1 economizer exit flue duct bypass baffle is set
It puts between No.1 economizer and No.1 denitrification apparatus inlet flue gas controllable register, No.1 air preheater gas approach by-pass damper is set
It puts between No.1 Benitration reactor and No.1 air preheater；No.1 opening and No. two openings are provided on No.1 flue, No.1 saves
Coal device exhaust pass by-pass damper is arranged in No.1 opening, and No.1 air preheater gas approach by-pass damper is arranged on No. two openings
On；
No. two boiler plants include No. two boilers, No. two economizers, No. two economizer exit flue duct bypass baffles, No. two denitration dresses
Posting port gas proportioning damper, No. two Benitration reactors, No. two air preheater gas approach by-pass dampers and No. two air preheaters, No. two
Boiler, No. two economizers, No. two denitrification apparatus inlet flue gas controllable registers, No. two Benitration reactors and No. two air preheaters are along flue gas
Flow direction is set gradually, and No. two boilers are communicated with No. two flues, and No. two economizers, No. two denitrification apparatus inlet flue gas adjust gear
Plate, No. two Benitration reactors and No. two air preheaters are arranged in No. two flues, and No. two economizer exit flue duct bypass baffles are set
It puts between No. two economizers and No. two denitrification apparatus inlet flue gas controllable registers, No. two air preheater gas approach by-pass dampers are set
It puts between No. two Benitration reactors and No. two air preheaters；No. three openings and No. four openings, No. two provinces are provided on No. two flues
Coal device exhaust pass by-pass damper is arranged in No. three openings, and No. two air preheater gas approach by-pass dampers are arranged on No. four openings
On；
It is connected between No.1 opening and No. three openings by No. three flues, passes through No. four flues between No. two openings and No. four openings
Connection.
2. the system of twin furnace synthetic operation full load denitration according to claim 1, it is characterised in that：No. three flues
Economizer exit bypass flue gas proportioning damper is inside provided with, air preheater entrance bypass flue flue gas is provided in No. four flues
Controllable register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218571.8U CN207445986U (en) | 2017-09-22 | 2017-09-22 | A kind of system of twin furnace synthetic operation full load denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218571.8U CN207445986U (en) | 2017-09-22 | 2017-09-22 | A kind of system of twin furnace synthetic operation full load denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445986U true CN207445986U (en) | 2018-06-05 |
Family
ID=62283775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218571.8U Active CN207445986U (en) | 2017-09-22 | 2017-09-22 | A kind of system of twin furnace synthetic operation full load denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207445986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638803A (en) * | 2017-09-22 | 2018-01-30 | 华电电力科学研究院 | A kind of system and its operation method of twin furnace synthetic operation full load denitration |
-
2017
- 2017-09-22 CN CN201721218571.8U patent/CN207445986U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638803A (en) * | 2017-09-22 | 2018-01-30 | 华电电力科学研究院 | A kind of system and its operation method of twin furnace synthetic operation full load denitration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204063081U (en) | The flue structure that a kind of SCR flue gas denitrification system inlet flue gas temperature is adjustable | |
| CN207591613U (en) | A kind of regenerated SCR system of low-temperature SCR catalyst | |
| CN108786459A (en) | A kind of system and its operation method of the wide load denitration of air water cooperative achievement | |
| CN102927577A (en) | Flue distribution manner applied to negative omnidistance load commissioning of denitration equipment | |
| CN103041703A (en) | SCR (Selective Catalytic Reduction) flue gas denitration system for burning lignite | |
| CN106765246B (en) | A kind of online method and device for removing refinery's FCC apparatus waste heat boiler fouling | |
| CN107935084A (en) | A kind of the desulfurization wastewater Zero discharging system and method for the wide load denitration of cooperative achievement | |
| CN203517748U (en) | Temperature controllable coal economizer | |
| CN208786167U (en) | A kind of system of the wide load denitration of air water cooperative achievement | |
| CN207445986U (en) | A kind of system of twin furnace synthetic operation full load denitration | |
| CN107638803A (en) | A kind of system and its operation method of twin furnace synthetic operation full load denitration | |
| CN208436636U (en) | Boiler smoke temperature adjustment structure and the boiler flue gas denitration system for applying it | |
| CN203002215U (en) | SCR (Selective Catalytic Reduction) flue gas denitration system for burning lignite | |
| CN210473607U (en) | Full-load SCR denitration system of coal-fired boiler | |
| CN106178946A (en) | The implementation method of integral embedded type flue gas during smelting denitrating system | |
| CN202070278U (en) | Heating system for purified flue gas after being subjected to wet flue gas desulfurization | |
| CN209490673U (en) | A kind of sintering device flue gas denitrating system | |
| CN111804138A (en) | Biomass boiler flue gas denitration system and application process thereof | |
| CN207943897U (en) | A kind of desulfurization wastewater Zero discharging system of the wide load denitration of cooperative achievement | |
| CN110822461A (en) | Method for realizing wide-load denitration by bypass grading economizer | |
| CN211551647U (en) | Wood-based plate trade VOCs exhaust gas purification system | |
| CN204841383U (en) | System for higher exhaust gas temperature is satisfied to denitration desulfurization simultaneously | |
| CN112495160B (en) | Device and method for tail gas nitrogen oxide removal process of sulfur recovery device | |
| CN208082232U (en) | It is a kind of can on-line maintenance low temperature SCR denitration reactor | |
| CN207805390U (en) | A kind of station boiler denitrating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |