CN206531074U - Refuse burning system waste heat boiler soot blowing mechanism - Google Patents
Refuse burning system waste heat boiler soot blowing mechanism Download PDFInfo
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- CN206531074U CN206531074U CN201621444801.8U CN201621444801U CN206531074U CN 206531074 U CN206531074 U CN 206531074U CN 201621444801 U CN201621444801 U CN 201621444801U CN 206531074 U CN206531074 U CN 206531074U
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- waste heat
- heat boiler
- evaporator
- soot blowing
- nozzle
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Abstract
The utility model discloses a kind of refuse burning system waste heat boiler soot blowing mechanism; superheater, evaporator and economizer are sequentially provided with the exhaust gases passes of waste heat boiler; the porch of the exhaust gases passes is provided with protection evaporator, and the side of the protection evaporator is provided with the sootblower nozzle to its heating surface air blast.Simple the utility model has the advantage of apparatus structure, bonded boiler internal pipeline layout can more preferably effectively improve the dust stratification for removing boiler heating surface, improve boiler thermal conversion efficiency and service life.
Description
Technical field
The utility model is related to waste heat boiler, more particularly to waste heat boiler heating surface soot blowing 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 it is difficult to control to soot blower occasion,
Influence heat production effect and the life-span of boiler.
Utility model content
Technical problem to be solved in the utility model is to realize a kind of combination waste heat boiler interior layout change, Neng Gouyou
Effect removes the device of fouling of heating surface inside waste heat boiler.
To achieve these goals, the technical solution adopted in the utility model is：Refuse burning system waste heat boiler soot blowing
Superheater, evaporator and economizer are sequentially provided with mechanism, the exhaust gases passes of waste heat boiler, the porch of the exhaust gases passes is set
There is protection evaporator, the side of the protection evaporator is provided with the sootblower nozzle to its heating surface air blast.
The exhaust gases passes are vertically arranged, and the pipe level of the protection evaporator is set.
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.
Simple the utility model has the advantage of apparatus structure, bonded boiler internal pipeline layout more preferably can be carried effectively
Height removes the dust stratification of boiler heating surface, improves boiler thermal conversion efficiency and service life.
Brief description of the drawings
The mark in the content and figure of every width accompanying drawing expression in the utility model specification is briefly described below：
Fig. 1 is soot blowing mechanism structural representation；
Mark in above-mentioned figure is：1st, evaporator is protected；2nd, superheater；3rd, evaporator；4th, economizer；5th, drum；6、
Soot blower.
Embodiment
In the exhaust gases passes of waste heat boiler protection evaporator 1, superheater 2, evaporator 3 are sequentially provided with along flow of flue gas direction
With economizer 4, because the system is applied to refuse incineration exhaust-heating boiler, its internal generation amount of dust is larger, it is therefore desirable in mistake
Arrangement protection evaporator 1 before hot device 2, that is, protect evaporator 1 to be arranged in before the import of convection pass, finishing superheater 2, it has two
Individual major function：One is that the tube bank of superheater 2 can be protected to avoid abrasion, and two be that the protection heating surface of evaporator 1 can make flue-gas temperature exist
Less than 650 DEG C are reduced to before into superheater 2, this cigarette temperature is for preventing the corrosion of superheater tube most important.What flue gas was carried
Even if soot particle is dissolved to fall on the protection pipe of evaporator 1, but because the protection tube wall temperature of evaporator 1 is significantly less than the tube wall of superheater 2
Temperature, soot particle becomes solid, and dust stratification is just can remove by steam soot cleaning system, and the danger of high temperature corrosion is greatly reduced.
To improve the dedusting effect of protection evaporator 1, the side of protection evaporator 1 is provided with the soot blower to its heating surface air blast
6 nozzles, soot blower 6 removes the dust stratification on heating surface using steam soot-blower, and a whole set of soot blower uses programme-control, periodically
Ash disposal, usual 1~2 times/day.
Soot blower 6 connects steam source of the gas by the main pipeline provided with magnetic valve, and nozzle is separately mounted to supervisor provided with multiple
On the branch pipe of road and connection main pipeline, nozzle is horizontal flat nozzle, and nozzle inclination is downwards to the protection heating surface of 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 protection evaporator 1, and every group of nozzle sets eight
It is individual, the surrounding of protection 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 to magnetic valve by PLC, so that electromagnetic valve for adjusting aperture controls soot blowing air pressure, it is ensured that soot blowing is imitated
Really.For further accurate control soot blower occasion, it can protect the pipeline both sides of evaporator 1 that laser detector is set in the superiors,
After level is fixed, laser is crossed above the superiors' heating surface of protection radiator 1 during work, side transmitting laser signal, another
Side joint receives laser signal, represents that dust is blocked up when laser signal is blocked, then can control to send the signal of soot blowing request.
The exhaust gases passes of waste heat boiler are vertically arranged, and the pipe level of protection evaporator 1 is set, and protects the knot of evaporator 1
The structure of evaporator 3 of the structure with being commonly used for waste heat boiler is identical, and it supplies water as the demineralized water after heating.
Superheater 2 is made up of three-level and two middle water spray attemperators and attemperation control system.Attemperator is arranged on outside stove,
By spraying into boiler feedwater come cooling steam.Evaporator 3 is kept away in order that drop to less than 400 DEG C into the flue-gas temperature of economizer 4
Exempt from that vaporization phenomenon occurs in economizer 4, second level evaporator 3 is disposed with after superheater 2.Economizer 4 is in flue gas stream
Last heating surface, be arranged in after steam-generating bank, the effect of economizer 4 is that feedwater is heated to 10 below saturation temperature
~30 DEG C of feeding drums 5.The important function of drum 5 is to separate the carbonated drink in boiler, and distributes boiler feedwater by down-comer,
The evaporating heating surface of each several part is given by distribution pipe.Produced steam water interface returns to drum 5 by tedge, in drum
In 5, vapour is separated from steam water interface, and is sent to superheater 2 by saturated vapor outlet.
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, protection domain of the present utility model it
It is interior.
Claims (4)
1. it is sequentially provided with superheater, evaporator in refuse burning system waste heat boiler soot blowing mechanism, the exhaust gases passes of waste heat boiler
And economizer, it is characterised in that：The porch of the exhaust gases passes is provided with protection evaporator, and the side of the protection evaporator is provided with
To the sootblower nozzle of its heating surface air blast.
2. refuse burning system waste heat boiler soot blowing mechanism according to claim 1, it is characterised in that：The exhaust gases passes
It is vertically arranged, the pipe level of the protection evaporator is set.
3. refuse burning system waste heat boiler soot blowing mechanism according to claim 1 or 2, it is characterised in that：The soot blowing
Device connects steam source of the gas by the main pipeline provided with magnetic valve, and the branch pipe of the main pipeline and connection main pipeline is provided with nozzle,
The main pipeline is provided with electronic barometer, and the electronic barometer output pressure signal is to PLC, the PLC output controls letter
Number to magnetic valve.
4. refuse burning system waste heat boiler soot blowing mechanism according to claim 3, it is characterised in that：The nozzle is horizontal stroke
The flat nozzle put, the nozzle inclination sends out high steam to protection evaporator heating surface downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444801.8U CN206531074U (en) | 2016-12-27 | 2016-12-27 | Refuse burning system waste heat boiler soot blowing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444801.8U CN206531074U (en) | 2016-12-27 | 2016-12-27 | Refuse burning system waste heat boiler soot blowing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206531074U true CN206531074U (en) | 2017-09-29 |
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ID=59921844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621444801.8U Active CN206531074U (en) | 2016-12-27 | 2016-12-27 | Refuse burning system waste heat boiler soot blowing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206531074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006659A (en) * | 2017-12-18 | 2018-05-08 | 上海康恒环境股份有限公司 | The combined type deashing arrangement and method for arranging of a kind of garbage burning boiler |
| CN109764347A (en) * | 2019-01-09 | 2019-05-17 | 永清环保股份有限公司 | A kind of vapo(u)rblast soot blower, waste incineration soot blower system and working method |
-
2016
- 2016-12-27 CN CN201621444801.8U patent/CN206531074U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006659A (en) * | 2017-12-18 | 2018-05-08 | 上海康恒环境股份有限公司 | The combined type deashing arrangement and method for arranging of a kind of garbage burning boiler |
| CN109764347A (en) * | 2019-01-09 | 2019-05-17 | 永清环保股份有限公司 | A kind of vapo(u)rblast soot blower, waste incineration soot blower system and working method |
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