CN206648007U - Waste heat boiler with protection evaporator - Google Patents
Waste heat boiler with protection evaporator Download PDFInfo
- Publication number
- CN206648007U CN206648007U CN201621444751.3U CN201621444751U CN206648007U CN 206648007 U CN206648007 U CN 206648007U CN 201621444751 U CN201621444751 U CN 201621444751U CN 206648007 U CN206648007 U CN 206648007U
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- China
- Prior art keywords
- evaporator
- waste heat
- superheater
- heat boiler
- protection
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Abstract
The utility model discloses a kind of waste heat boiler with protection evaporator; superheater, evaporator and economizer are provided with the exhaust gases passes of waste heat boiler; described evaporator is provided with two, and the exhaust gases passes interior edge flow of flue gas direction of the waste heat boiler is followed successively by the first evaporator, superheater, the second evaporator and economizer.The utility model has the advantage of superheater bank can be protected to avoid wearing, flue-gas temperature can be made to be reduced to less than 650 DEG C before superheater is entered, this cigarette temperature is for preventing the corrosion of superheater tube most important.Even if the soot particle that dissolves that flue gas carries is fallen on evaporator tube, but because evaporator tube wall temperature is significantly less than superheater tube wall temperature, soot particle becomes solid, can remove dust stratification by steam soot cleaning system, the danger of high temperature corrosion greatly reduces.
Description
Technical field
It the utility model is related to waste heat boiler field.
Background technology
The dust stratification of waste heat boiler heating surface influences whether the safe operation of boiler, is typically to increase journey in heating surface both sides at present
Nozzle-type shock wave soot blower, but such soot blower is difficult to thoroughly remove fouling of heating surface, and unmanageable soot blower occasion,
If superheater surface dust stratification is serious, not only influence whether the heat transfer effect of superheater, because of dirt accumulation and caused by wall erosion, shadow
Ring using effect.
Utility model content
Technical problem to be solved in the utility model is to realize a kind of raising waste heat boiler interior conduit service life, is reduced
The device layout of dust stratification amount.
To achieve these goals, the technical solution adopted in the utility model is：Waste heat pot with protection evaporator
Stove, the exhaust gases passes of waste heat boiler are interior to be provided with superheater, evaporator and economizer, and described evaporator is described remaining provided with two
The exhaust gases passes interior edge flow of flue gas direction of heat boiler is followed successively by the first evaporator, superheater, the second evaporator and economizer.
The exhaust gases passes are the flue being vertically arranged, and the pipe level of the superheater, evaporator and economizer is set.
The input port connection water supply installation of first evaporator, delivery outlet connection drum, the input port of the economizer
Water supply installation, delivery outlet connection drum are connected, the second evaporator input and delivery outlet are all connected with drum, the superheater
Input port connects drum, and delivery outlet connection steam uses equipment.
The side of first evaporator is provided with the sootblower nozzle to its heating surface air blast.
The soot blower connects steam source of the gas, the main pipeline and connection main pipeline by the main pipeline provided with magnetic valve
Branch pipe is provided with nozzle, and the main pipeline is provided with electronic barometer, the electronic barometer output pressure signal to PLC, institute
State PLC and output control signals to magnetic valve.
The nozzle is horizontal flat nozzle, and the nozzle inclination sends out high pressure to protection evaporator heating surface downwards
Steam.
The utility model has the advantage of superheater bank can be protected to avoid wearing, flue-gas temperature can be made into superheater
Before be reduced to less than 650 DEG C, this cigarette temperature is for preventing the corrosion of superheater tube most important.Even if what flue gas carried dissolves soot particle
Fall on evaporator tube, but because evaporator tube wall temperature is significantly less than superheater tube wall temperature, soot particle becomes solid, passes through steaming
Vapour soot cleaning system can remove dust stratification, and the danger of high temperature corrosion greatly reduces.
Brief description of the drawings
The content of every width accompanying drawing expression in the utility model specification and the mark in figure are briefly described below：
Fig. 1 is that the waste heat boiler with protection evaporator arranges schematic diagram；
Mark in above-mentioned figure is：1st, the first evaporator；2nd, superheater；3rd, the second evaporator；4th, economizer；5th, vapour
Bag；6th, soot blower.
Embodiment
The exhaust gases passes interior edge flow of flue gas direction of waste heat boiler is sequentially provided with the first evaporator 1, superheater 2, second steams
Device 2 and economizer 4 are sent out, because the system is applied to refuse incineration exhaust-heating boiler, its internal generation amount of dust is larger, it is therefore desirable to
Arrange the first evaporator 1 before superheater 2, i.e. the first evaporator 1 is arranged in the import of convection pass, before finishing superheater 2, it
There are two major functions：First, the tube bank of superheater 2 can be protected to avoid wearing, second, the heating surface of the first evaporator 1 can make flue gas temperature
Degree is reduced to less than 650 DEG C before superheater 2 is entered, and this cigarette temperature is for preventing the corrosion of superheater tube most important.Flue gas is taken
Even if the soot particle that dissolves of band is fallen on the pipe of the first evaporator 1, but because the tube wall temperature of the first evaporator 1 is significantly less than superheater 2
Tube wall temperature, soot particle become solid, can remove dust stratification by steam soot cleaning system, the danger of high temperature corrosion greatly reduces.
The exhaust gases passes of waste heat boiler are vertically arranged, and the pipeline of superheater 2, evaporator and economizer 4 is horizontally disposed.Pipe
Road annexation is as follows：The input port connection water supply installation of first evaporator 1, delivery outlet connection drum 5, the input of economizer 4
Mouthful connection water supply installation, delivery outlet connection drum 5, the input of the second evaporator 2 and delivery outlet are all connected with drum 5, superheater 2 it is defeated
Entrance connects drum 5, and delivery outlet connection steam uses equipment.
In order to rationally utilize flue gas heat, and the dust in flue gas is avoided to corrode duct wall, flue is provided with three groups vertically, its
In be provided with the first evaporator 1 in the first flue for being connected with combustion chamber, the first flue is connecting with being connected below the second flue
The lower section at position is provided with the mechanism for collecting dust, is lowered into the amount of dust of the second flue, and the lower section inside the second flue is provided with
Superheater 2, top are provided with the second evaporator 3, and the upper pipe of the second flue connects with the 3rd flue top, the 3rd stack base
It also is provided with collecting the mechanism of dust, economizer 4 is arranged in the 3rd flue.
Further to improve dedusting effect, the dedusting effect of the first evaporator 1, the side of the first evaporator 1 be provided with to its by
The nozzle of soot blower 6 of hot face air blast, soot blower 6 remove the dust stratification on heating surface, a whole set of soot blower using steam soot-blower
Using programme-control, intermittent dust removal, usual 1~2 times/day.
Soot blower 6 connects steam source of the gas by main pipeline provided with magnetic valve, and nozzle is provided with multiple, is separately mounted to be responsible for
On the branch pipe of road and connection main pipeline, nozzle is horizontal flat nozzle, and nozzle inclination is downwards to the heating surface of the first evaporator 1
High steam is sent out, such structure can improve the area and effect of each nozzle soot blowing, so as to reduce the arrangement number of nozzle
Amount, can set one group of nozzle on the pipeline of the superiors' heating surface and every three layer of first evaporator 1, and every group of nozzle sets eight
It is individual, the surrounding of the first evaporator 1 is uniformly arranged on respectively.
The main pipeline of soot blower 6 is provided with electronic barometer, electronic barometer output pressure signal to PLC, PLC output controls
Signal processed obtains pipeline pressure by PLC, so as to electromagnetic valve for adjusting aperture control soot blowing air pressure, ensures soot blowing effect to magnetic valve
Fruit.For further accurate control soot blower occasion, laser detector can be set in the pipeline both sides of the first evaporator of the superiors 1,
After level is fixed, laser is crossed above the superiors' heating surface of the first evaporator 1 during work, and transmitting laser signal in side is another
Side joint receives laser signal, represents that dust is blocked up when laser signal is blocked, then can control the signal for sending soot blowing request.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model is implemented not by above-mentioned
The limitation of mode, if the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or not
It is improved by the present invention design and technical scheme directly apply to other occasions, the scope of protection of the utility model it
It is interior.
Claims (6)
1. the waste heat boiler with protection evaporator, the exhaust gases passes of waste heat boiler are interior to be provided with superheater, evaporator and saves coal
Device, it is characterised in that：Described evaporator is provided with two, and the exhaust gases passes interior edge flow of flue gas direction of the waste heat boiler is successively
For the first evaporator, superheater, the second evaporator and economizer.
2. the waste heat boiler according to claim 1 with protection evaporator, it is characterised in that：The exhaust gases passes are
The flue being vertically arranged, the pipe level of the superheater, evaporator and economizer are set.
3. the waste heat boiler according to claim 1 or 2 with protection evaporator, it is characterised in that：Described first steams
Send out the input port connection water supply installation of device, delivery outlet connection drum, the input port connection water supply installation of the economizer, delivery outlet
Drum is connected, the second evaporator input and delivery outlet are all connected with drum, the input port connection drum of the superheater, output
Mouth connection steam uses equipment.
4. the waste heat boiler according to claim 3 with protection evaporator, it is characterised in that：First evaporator
Side be provided with to its heating surface air blast sootblower nozzle.
5. the waste heat boiler according to claim 4 with protection evaporator, it is characterised in that：The soot blower passes through
The branch pipe of main pipeline connection steam source of the gas provided with magnetic valve, the main pipeline and connection main pipeline is provided with nozzle, the master
Pipeline is provided with electronic barometer, the electronic barometer output pressure signal to PLC, and the PLC outputs control signals to electricity
Magnet valve.
6. the waste heat boiler according to claim 5 with protection evaporator, it is characterised in that：The nozzle is horizontal
Flat nozzle, the nozzle inclination downwards to protection evaporator heating surface send out high steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444751.3U CN206648007U (en) | 2016-12-27 | 2016-12-27 | Waste heat boiler with protection evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444751.3U CN206648007U (en) | 2016-12-27 | 2016-12-27 | Waste heat boiler with protection evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206648007U true CN206648007U (en) | 2017-11-17 |
Family
ID=60283354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621444751.3U Active CN206648007U (en) | 2016-12-27 | 2016-12-27 | Waste heat boiler with protection evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206648007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956239A (en) * | 2022-06-21 | 2022-08-30 | 国家电投集团重庆合川发电有限公司 | Desulfurization wastewater treatment device |
-
2016
- 2016-12-27 CN CN201621444751.3U patent/CN206648007U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956239A (en) * | 2022-06-21 | 2022-08-30 | 国家电投集团重庆合川发电有限公司 | Desulfurization wastewater treatment device |
| CN114956239B (en) * | 2022-06-21 | 2024-01-26 | 国家电投集团重庆合川发电有限公司 | Desulfurization waste water treatment device |
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