CN206347544U - Fire grate garbage burning electricity generation afterheat utilizing system - Google Patents
Fire grate garbage burning electricity generation afterheat utilizing system Download PDFInfo
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- CN206347544U CN206347544U CN201621444361.6U CN201621444361U CN206347544U CN 206347544 U CN206347544 U CN 206347544U CN 201621444361 U CN201621444361 U CN 201621444361U CN 206347544 U CN206347544 U CN 206347544U
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- superheater
- flue
- flue gas
- utilizing system
- baffle plate
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Abstract
The utility model discloses a kind of fire grate garbage burning electricity generation afterheat utilizing system; superheater, evaporator and economizer are disposed with along the flow of flue gas direction of exhaust gases passes; the superheater is made up of the first superheater, the second superheater and the 3rd superheater being sequentially connected in series; the protection baffle plate for being used for stopping flue gas is provided with before the superheater, the protection baffle plate is provided with the hole passed through for flue gas.The utility model afterheat utilizing system can rationally suppress the generation of dioxin in flue gas, reduce later stage fume treatment difficulty, and coordinate rational dust arrester, the amount of pipeline adhesive dust can be reduced, so as to improve the service life of pipeline.
Description
Technical field
The utility model is related to field of waste heat utilization.
Background technology
Waste heat boiler is a traditional energy-saving equipment, in extensive range, and in field of waste incineration, due to waste incineration
, there is problems with the particularity of produced flue gas：1st, the flue gas of waste incineration can produce bioxin gas, harm to the human body
Greatly, and waste heat boiler superheater to evaporator section temperature can drastically decline, easily produce bioxin；2nd, combustion product gases
Dust be readily adsorbed on the tube wall of heat exchange pipeline, dust has corrosivity, can influence the service life of pipeline.Based on above-mentioned
Problem, need to design a kind of waste heat boiler suitable for field of waste incineration.
Utility model content
Technical problem to be solved in the utility model be realize it is a kind of it is safe and reliable, stably, environmental protection and can be applied to
The afterheat utilizing system of waste incineration and generating electricity.
To achieve these goals, the technical solution adopted in the utility model is：Fire grate garbage burning electricity generation UTILIZATION OF VESIDUAL HEAT IN
System, is disposed with superheater, evaporator and economizer, the superheater is by successively along the flow of flue gas direction of exhaust gases passes
The first superheater, the second superheater and the 3rd superheater of series connection are constituted, and the guarantor for being used for stopping flue gas is provided with before the superheater
Guard, the protection baffle plate is provided with the hole passed through for flue gas.
The flue is vertically arranged, and the pipe level of the superheater, evaporator and economizer is set, the protection baffle plate
It is horizontally disposed.
Flue collector above combustion chamber above the first flue with connecting, with connecting below the second flue below first flue
It is logical, and in connection position bottom provided with mechanism of gathering dust, the superheater and evaporator are placed in the second flue, and the economizer is put
In in the 3rd flue.
The influent header of first superheater connects the saturated vapor output channel of drum, and first superheater goes out
Mouth header connects the influent header of the second superheater through the first attemperator, and the outlet header of second superheater is through the second desuperheat
Device connects the influent header of the 3rd superheater, the outlet header connection main steam line of the 3rd superheater, second cigarette
Road is sequentially provided with the first superheater, the second superheater and the 3rd superheater from top to bottom.
3rd superheater is provided with protection baffle plate, and the protection baffle plate is by being welded on the 3rd every heat exchanger tube of superheater
Flue gas, which to cover to the C-shaped pipes of side, to be constituted.
The C-shaped pipes set is flexible steel bar, and the C-shaped pipes set outer surface is evenly distributed with recess structure, the C-shaped pipes
Provided with vibrations connection strap between set, the C-shaped pipes set edge is provided with the rapping apparatus for being used for beaing protection baffle plate.
The utility model afterheat utilizing system can rationally suppress the generation of dioxin in flue gas, reduce later stage fume treatment
Difficulty, and coordinate rational dust arrester, the amount of pipeline adhesive dust can be reduced, so as to improve the service life of pipeline.
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 afterheat utilizing system structural representation；
Fig. 2 is afterheat utilizing system pipeline connecting figure；
Mark in above-mentioned figure is：1st, economizer；2nd, drum；3rd, evaporator；4th, the first superheater；5th, the second overheat
Device；6th, the 3rd superheater；7th, baffle plate is protected.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the present utility model is for example involved each
Mutual alignment and annexation, the effect of each several part and operation principle, manufacture work between the shape of component, construction, each several part
Skill and operate with method etc., are described in further detail, to help those skilled in the art to invention of the present utility model
Design, technical scheme have more complete, accurate and deep understanding.
As shown in figure 1, in the exhaust gases passes of afterheat utilizing system, superheater, evaporation are sequentially provided with along flow of flue gas direction
Device 3 and economizer 1, because the system is applied to refuse incineration exhaust-heating boiler, its internal generation amount of dust is larger, it is therefore desirable to
Arrangement protection baffle plate 7 before superheater.
For the flue collector above the combustion chamber of combustion refuse with being connected above the first flue, with second below the first flue
Connected below flue, and in connection position bottom provided with mechanism of gathering dust, the second flue top is connected with the 3rd flue, such perpendicular
Entrained fume amount in straight flue layout type, it is possible to increase flue dust effect of settling, reduction flue gas, and first can be passed through
The dust arrester installation connected below flue with the second flue below position is collected processing.
Superheater is made up of the first superheater 4, the second superheater 5 and the 3rd superheater 6, by setting three groups of superheaters,
Vapor (steam) temperature can be controlled and prevent that flue-gas temperature reduction is too fast, in case bioxin is generated.The exhaust gases passes of waste heat boiler are vertical
Set, economizer 1, evaporator 3, the first superheater 4, the second superheater 5, the pipeline of the 3rd superheater 6 and the protection equal water of baffle plate 7
It is flat in flue, there is enough limited raising heat exchange efficiency.
As shown in figure 1, the second flue is sequentially provided with the first superheater 4, the second superheater 5 and the 3rd superheater from top to bottom
6, evaporator 3 is placed in the top of the first superheater 4 of the second flue, and economizer 1 is placed in the 3rd flue, passes through three groups of flues and bottom
Portion's mode of communicating, can effectively reduce flue dust, it is to avoid adhere to foreign matter on pipeline, be favorably improved the service life and Re Jiao of pipeline
Change effect, and such layout structure can more adapt to waste incineration produced by flue gas heat exchange supply, can be more
Reliable and stable provides stable steam for steam turbine.
The influent header of first superheater 4 connects the saturated vapor output channel of drum 2, the outlet connection of the first superheater 4
Case connects the influent header of the second superheater 5 through the first attemperator, and the outlet header of the second superheater 5 is connected through the second attemperator
The influent header of 3rd superheater 6, the outlet header connection main steam line of the 3rd superheater 6.Outlet header and influent header
Between be superheater pipeline.
Flue collector above combustion chamber above the first flue with connecting, with being connected below the second flue below the first flue,
And dust content can be so reduced, the second flue is sequentially provided with from top to bottom provided with mechanism of gathering dust in connection position bottom
First superheater 4, the second superheater 5 and the 3rd superheater 6.
In order to be accurately controlled vapor (steam) temperature and flue-gas temperature, the water supply of three layer of first attemperator and the second attemperator
Electronic flow valve is equipped with pipeline, the second superheater 5 is provided with the first temperature sensor, and the 3rd superheater 6 is externally provided with the second temperature
Sensor is spent, first temperature sensor, second temperature sensor output temperature signal to PLC pass through flue gas for detecting
Temperature, PLC is according to ambient temperature state, and output opening amount signal is adjusted to two electronic flow valves, i.e. flue-gas temperature gets over Gao Ze
Electronic flow valve opening is bigger, so as to rational control vapor (steam) temperature and fine setting flue-gas temperature.
The water supply of attemperator uses demineralized water, and demineralized water is delivered to oxygen-eliminating device through water pump, and the water of oxygen-eliminating device output is heated
Pressurized delivered is to the first attemperator and the second attemperator after device heating, and heating-up temperature is typically at 140 degree or so.
For further protection superheater and control flue-gas temperature, the lower section of the 3rd superheater 6 is provided with protection baffle plate 7, protection gear
Plate is constituted by being welded on the every heat exchanger tube of the 3rd superheater 6 flue gas to the C-shaped pipes set of side, and C-shaped pipes set passes through its cavity
Wrap the side of heat exchanger tube (flue gas comes to side).C-shaped pipes set can protect heat exchanger tube, can also be lowered into the second flue
Amount of dust, due to velocity of flue gas reduction, helps to control flue-gas temperature by superheater.
Further to improve the protection effect of protective plate, protective plate is provided with two, and respectively the first protective plate and second prevent
Backplate.
It is horizontally fixed with first flue in the first protective plate, the second flue and is horizontally fixed with the second protective plate.First prevents
Backplate is at the bottom end outlet of the first flue, and the first protective plate is made up of the C-shaped pipes set being arranged side by side, and C-shaped pipes set is fixed side by side
In framework, there is the gap passed through for flue gas between C-shaped pipes set, C-shaped pipes set comes to the first protective plate allows convex surface facing flue gas
Flue gas rapidly slows down in bottom, and the first protective plate can also adsorb dust in itself, allows it substantial amounts of can fall into dust arrester installation, reduces
Amount of dust in second flue,
It is horizontally fixed with the second protective plate in second flue, the 3rd superheater 6 is fixed on the bottom of the second flue, and (flue gas enters
At mouthful), the second protective plate is made up of the C-shaped pipes set being welded on the heat exchanger tube of the 3rd superheater 6, and C-shaped pipes set is located at heat exchanger tube
Bottom, i.e., flue gas is to direction, for protecting heat exchanger tube, also can further reduce the dust in barrier flue gas, reach double
Weight protection effect.
Because protective plate is made up of the C-shaped pipes set being set up in parallel, the hole passed through for flue gas is provided between C-shaped pipes set, this
The structure of sample helps to slow down to flue gas, can also protect heat exchanger tube.Each C-shaped pipes set is uniformly distributed towards flue gas to direction
There is recess structure (in numb spot distribution), i.e., the outer surface covered in C-shaped pipes is provided with recess structure, and C-shaped pipes set is preferred to use
Flexible steel bar makes, by sunk structure, can increase the effect of C-shaped pipes set absorption dust and improve C-shaped pipes set reduction flue gas
The effect of flow velocity, and the flexible characteristic for coordinating C-shaped pipes to cover, each C-shaped pipes are enclosed in the presence of flue gas blows, C-shaped pipes set meeting
Occur, from shaking, automatically to shake off the dust cake adsorbed on C-shaped pipes set into the dust arrester installation of lower section, with one
Fixed self purification, is provided with the rapping apparatus for being used for beaing protective plate edge by the first protective plate and the second protective plate in addition, the
Vibrations transmission bar can be welded between the C-shaped pipes set of two protective plates, is capable of the dust structure put to C-shaped pipes the cleaning of active.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model implement not by
The limitation of aforesaid way, as long as employing changing for the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Enter, or it is not improved by it is of the present utility model design and technical scheme directly apply to other occasions, in the utility model
Protection domain within.
Claims (6)
1. fire grate garbage burning electricity generation afterheat utilizing system, along the flow of flue gas direction of exhaust gases passes be disposed with superheater,
Evaporator and economizer, it is characterised in that：The superheater is by the first superheater, the second superheater and the 3rd mistake that are sequentially connected in series
Hot device is constituted, and the protection baffle plate for being used for stopping flue gas is provided with before the superheater, and the protection baffle plate is provided with to be passed through for flue gas
Hole.
2. fire grate garbage burning electricity generation afterheat utilizing system according to claim 1, it is characterised in that：The flue is vertical
Set, the pipe level of the superheater, evaporator and economizer is set, the protection baffle plate is horizontally disposed with.
3. fire grate garbage burning electricity generation afterheat utilizing system according to claim 2, it is characterised in that：Above combustion chamber
Flue collector above the first flue with connecting, with being connected below the second flue below first flue, and in connection position bottom
Provided with mechanism of gathering dust, the superheater and evaporator are placed in the second flue, and the economizer is placed in the 3rd flue.
4. fire grate garbage burning electricity generation afterheat utilizing system according to claim 3, it is characterised in that：First overheat
The influent header of device connects the saturated vapor output channel of drum, and the outlet header of first superheater connects through the first attemperator
The influent header of the second superheater is connect, the outlet header of second superheater connects entering for the 3rd superheater through the second attemperator
Mouthful header, the outlet header connection main steam line of the 3rd superheater, second flue is sequentially provided with the from top to bottom
One superheater, the second superheater and the 3rd superheater.
5. fire grate garbage burning electricity generation afterheat utilizing system according to claim 4, it is characterised in that：3rd overheat
Device is provided with protection baffle plate, and the protection baffle plate is by being welded on the 3rd every heat exchanger tube of superheater flue gas come to the C-shaped pipes of side
Set is constituted.
6. fire grate garbage burning electricity generation afterheat utilizing system according to claim 5, it is characterised in that：The C-shaped pipes set
For flexible steel bar, the C-shaped pipes set outer surface is evenly distributed between recess structure, the C-shaped pipes set provided with vibrations connection
Bar, the C-shaped pipes set edge is provided with the rapping apparatus for being used for beaing protection baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444361.6U CN206347544U (en) | 2016-12-27 | 2016-12-27 | Fire grate garbage burning electricity generation afterheat utilizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444361.6U CN206347544U (en) | 2016-12-27 | 2016-12-27 | Fire grate garbage burning electricity generation afterheat utilizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206347544U true CN206347544U (en) | 2017-07-21 |
Family
ID=59317984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621444361.6U Active CN206347544U (en) | 2016-12-27 | 2016-12-27 | Fire grate garbage burning electricity generation afterheat utilizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206347544U (en) |
-
2016
- 2016-12-27 CN CN201621444361.6U patent/CN206347544U/en active Active
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