CN207316877U - Biomass fuel fire tube boiler - Google Patents
Biomass fuel fire tube boiler Download PDFInfo
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- CN207316877U CN207316877U CN201721278270.4U CN201721278270U CN207316877U CN 207316877 U CN207316877 U CN 207316877U CN 201721278270 U CN201721278270 U CN 201721278270U CN 207316877 U CN207316877 U CN 207316877U
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- burner hearth
- drum
- membrane wall
- biomass fuel
- fire tube
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Abstract
The utility model discloses a kind of biomass fuel fire tube boiler, including：Membrane wall burner hearth, its top and bottom is respectively arranged with upper collecting chamber and lower header, fire grate combustion system is provided with below membrane wall burner hearth, one end of fire grate combustion system is provided with feeding system, there is a gas approach in membrane wall burner hearth, odd number trace intermediate flue, one exhaust pass, across connection between all flue upper and lower sides, the lower port of gas approach is connected with fire grate combustion system, superheater system is provided with exhaust pass, flue gas is from the fire tube that the upper end of exhaust pass is expelled in drum, down-comer on drum is connected with the lower header of membrane wall burner hearth, the upper collecting chamber of membrane wall burner hearth is connected with drum, the bottom of drum outer end smoke box is communicated with back-end ductwork, the bottom of back-end ductwork offers outlet.The utility model has the advantage of：It can fully burn to biomass fuel, and be avoided that the generation of bioxin, simple and stable structure.
Description
Technical field
It the utility model is related to fire tube boiler technical field.
Background technology
With the rapid development of the national economy, China's grain and oil processing industry also continues to develop.Produced in grain and oil process
Many accessory substances, such as sunflower seed shell, peanut shell, rice husk, palm shell, bagasse, these byproducts formed biomass fuel
Material.Traditional biomass fuel processing method has burning and backfill.Insufficient burning of biomass fuel easily produces harmful gas
Body, and environmental pollution is caused, so as to cause thermal energy to waste.The acid-base value that the backfill of biomass fuel is then easy to cause soil is lost
Weighing apparatus, influences the growth of crops.
In order to make full use of the calorific value of biomass fuel, and avoid causing dirt to environment in biomass fuel processing procedure
Dye, my company have developed the biomass fuel fire tube boiler that a suitable grain and oil processing enterprise uses.
Utility model content
The utility model technical issues that need to address are：A kind of calorific value that can make full use of biomass fuel, simultaneously is provided
It is avoided that the biomass fuel fire tube boiler of environmental pollution.
To solve the above problems, the technical solution adopted in the utility model is：Biomass fuel fire tube boiler, including：
Burner hearth, is provided with fire grate combustion system below burner hearth, one end of fire grate combustion system is provided with feeding system, and burner hearth is membrane type
Fireplace thorax, is respectively arranged with upper collecting chamber and lower header at the top and bottom of membrane wall burner hearth, one is provided with membrane wall burner hearth
Gas approach, odd number trace intermediate flue, an exhaust pass, across connection, the lower end of gas approach between all flue upper and lower sides
Mouth is connected with fire grate combustion system, and superheater system, the flue gas that the burning of fire grate combustion system produces are provided with exhaust pass
Circuitous flow is from the fire tube that the upper end of exhaust pass is expelled in drum up and down after gas approach entrance, the drum
On be provided with down-comer, down-comer is connected with the lower header of membrane wall burner hearth, and the upper collecting chamber of membrane wall burner hearth is connected with drum
Logical, the outer end of drum is provided with smoke box, and the bottom of smoke box is communicated with back-end ductwork, and the bottom of back-end ductwork offers outlet,
Flue gas in fire tube is discharged after smoke box enters to back-end ductwork from outlet.
Further, foregoing biomass fuel fire tube boiler, wherein, superheater system in exhaust pass by down toward
On be followed successively by high temperature superheater and low temperature superheater, the saturated vapor of output is successively through low temperature superheater and hyperthermia and superheating in drum
Device, high temperature superheater output superheated steam.
Further, foregoing biomass fuel fire tube boiler, wherein, connect at the top of the upper collecting chamber of membrane wall burner hearth
Logical be provided with collects vapour header, and the water in upper collecting chamber enters the hydrospace in drum, and the steam collected in vapour header enters in drum
Headroom.
Further, foregoing biomass fuel fire tube boiler, wherein, from top to bottom it is disposed with back-end ductwork
High-temperature economizer and low-level (stack-gas) economizer, outside is supplied water to be entered in drum after low-level (stack-gas) economizer and high-temperature economizer successively.
Further, foregoing biomass fuel fire tube boiler, wherein, the fire grate combustion system is by feeding system
One end set diagonally downward.
Further, foregoing biomass fuel fire tube boiler, wherein, the intermediate flue is together.
The utility model has the advantages that：First, membrane wall freeze profile effectively prolongs into more return flue structures of upper and lower detour
The holdup time of flue gas is grown so that flue gas can carry out sufficient heat exchange with the tedge of membrane wall burner hearth, so as to will be from
For the temperature control of the flue gas of membrane wall burner hearth discharge at 850 DEG C or so, this can effectively suppress the generation of bioxin.2nd, drum leads to
The lower header that down-comer is crossed with membrane wall burner hearth bottom is connected, and the upper collecting chamber of membrane wall roof of the furnace is connected with drum, so
Drum shares a water circulation system with membrane wall burner hearth, and structure simplifies, stable.3rd, it is adapted to oil and foodstuffs processing industry
And Furniture manufacture etc., can be that enterprise brings extremely obvious economic benefit.
Brief description of the drawings
Fig. 1 is the structure diagram of biomass fuel fire tube boiler described in the utility model.
Embodiment
The utility model is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, biomass fuel fire tube boiler, including：Burner hearth, the burner hearth are membrane wall burner hearth 1, membrane type
The lower section of fireplace thorax 1 is provided with fire grate combustion system 2, and one end of fire grate combustion system 2 is provided with feeding system 3.The present embodiment
In, in order to improve distributing homogeneity of the biomass fuel in fire grate combustion system 2, fire grate combustion system 2 is by feeding system 3
One end is set diagonally downward.The top and bottom of membrane wall burner hearth 1 are respectively arranged with upper collecting chamber 11 and lower header 12.Membrane type fireplace
14, a gas approach 13, odd number trace intermediate flue exhaust pass 15 are provided with thorax 1, described in the present embodiment in
Between flue 14 for together, intermediate flue 14 can accordingly be adjusted according to parameters such as exhaust gas volumn, flue-gas temperatures in actual production process
Quantity.Across connection between all flue upper and lower sides, the lower port of gas approach 13 is connected with fire grate combustion system 2, such as Fig. 1
Shown, the lower port of gas approach 13 is covered in the top of fire grate combustion system 2.Superheater system is provided with exhaust pass 15
System, the superheater system described in the present embodiment include：High temperature superheater 151 and low temperature superheater 152 are followed successively by from the bottom to top.
The flue gas that the burning of fire grate combustion system 2 produces circuitous flow and from the upper end of exhaust pass 15 up and down after the entrance of gas approach 13
Portion is expelled in the fire tube in drum 4.Be provided with down-comer 41 on the drum 4, down-comer 41 with membrane wall burner hearth 1
Header 12 is connected, and the upper collecting chamber 11 of membrane wall burner hearth 1 is connected with drum 4.In the present embodiment, the top connection of upper collecting chamber 11
It is provided with and collects vapour header 16, the water in upper collecting chamber 11 enters the hydrospace in drum 4, and the steam collected in vapour header 16 enters drum
Headroom in 4.The outer end of drum 4 is provided with smoke box 42, and the bottom of smoke box 42 is communicated with back-end ductwork 5, the bottom of back-end ductwork 5
Portion offers outlet 53.Flue gas in fire tube is discharged after smoke box 42 enters to back-end ductwork 5 from outlet 53.In order into one
Step is from top to bottom disposed with high-temperature economizer 51 in back-end ductwork 5 in the present embodiment and low temperature saves using the thermal energy of flue gas
Coal device 52, outside is supplied water to be entered in drum 4 after low-level (stack-gas) economizer 52 and high-temperature economizer 51 successively.
The flue gas flow of biomass fuel fire tube boiler is as follows.Biomass fuel is constantly added to stove by feeding system 3
Arrange in combustion system 2, entrance of 1000 DEG C or so of the flue gas that fully burning produces of fire grate combustion system 2 from membrane wall burner hearth 1
The lower port of flue 13 enters.Flue gas upper and lower circuitous flow in gas approach 13, intermediate flue 14, exhaust pass 15, makes cigarette
The purpose of circuitous flow is above and below gas：Extend holdup time of the flue gas in membrane wall burner hearth 1, membrane wall burner hearth 1 is increased
Water in pipe fully absorbs the heat in flue gas, so that it is guaranteed that the temperature for the flue gas discharged from membrane wall burner hearth 1 is controlled in 850
DEG C or so, this can effectively suppress bioxin generation.Into the flue gas in exhaust pass 15 from the bottom up successively through high temperature superheater
151 and low temperature superheater 152, then it is expelled to from the upper end of exhaust pass 15 in the fire tube in drum 4.Flue gas in fire tube
Heat exchange is carried out with the water in drum 4, the flue gas for releasing heat is entered in back-end ductwork 5 from smoke box 42.In back-end ductwork 5
Flue gas carry out further heat exchange with high-temperature economizer 51 and low-level (stack-gas) economizer 52 successively, completely discharge heat after flue gas
Discharged from the outlet 53 of back-end ductwork 5.
The carbonated drink flow of biomass fuel fire tube boiler is as follows.Supply water and saved successively through low-level (stack-gas) economizer 52 and high temperature in outside
Enter after coal device 51 in drum 4.Drum 4 is entered back into after the water supply preheating of outside, this improves the feed temperature of drum 4, so as to contract
The temperature difference between water and fire tube in small drum, effectively reduces the thermal stress in drum 4.Drum 4 in hot water through down-comer 41 into
Enter into lower header 12, the steam water interface in lower header 12 by thermosetting is constantly flowed up from tedge.In tedge
Steam water interface heat is constantly absorbed in uphill process, then carry out into upper collecting chamber 11, the steam produced in upper collecting chamber 11
Enter in collection vapour header 16.Hot water in upper collecting chamber 11 enters to the hydrospace of drum 4, and the steam collected in vapour header 16 enters
Headroom to drum 4.The saturated vapor that steam-water separation produces in drum 4 is sequentially entered to low temperature superheater 152 and high temperature
Superheater 151, high temperature superheater 151 finally produce superheated steam and outwards supply.
It is worth mentioning that：During equipment making, 1 modularized production of membrane wall burner hearth can be so readily transported
And installation.
The utility model has the advantage of：First, can fully be burnt to biomass fuel, so as to make full use of biology
The calorific value of matter fuel.2nd, more return flue structures of detour up and down are formed in membrane wall burner hearth 1, effectively extend the stagnant of flue gas
Stay the time so that flue gas can carry out sufficient heat exchange with the tedge of membrane wall burner hearth 1, so as to will be from membrane wall burner hearth 1
For the temperature control of the flue gas of discharge at 850 DEG C or so, this can effectively suppress the generation of bioxin, avoid environmental pollution.3rd, drum
4 are connected by down-comer 41 with the lower header 12 of 1 bottom of membrane wall burner hearth, the upper collecting chamber 11 and pot at the top of membrane wall burner hearth 1
Cylinder 4 fuel tanks connection, such drum 4 share a water circulation system with membrane wall burner hearth 1, and structure simplifies, stable.4th, fit
Oil and foodstuffs processing industry and Furniture manufacture etc. are closed, can be that enterprise brings extremely obvious economic benefit.
Claims (6)
1. biomass fuel fire tube boiler, including：Burner hearth, fire grate combustion system, fire grate burning system are provided with below burner hearth
One end of system is provided with feeding system, it is characterised in that：Burner hearth is membrane wall burner hearth, and the top and bottom of membrane wall burner hearth are distinguished
Upper collecting chamber and lower header are provided with, a gas approach, odd number trace intermediate flue, an outlet cigarette are provided with membrane wall burner hearth
Road, is connected with fire grate combustion system, is set in exhaust pass across connection, the lower port of gas approach between all flue upper and lower sides
Be equipped with superheater system, the flue gas that the burning of fire grate combustion system produces after gas approach entrance up and down circuitous flow from outlet cigarette
The upper end in road is expelled in the fire tube in drum, and down-comer, down-comer and membrane wall burner hearth are provided with the drum
Lower header is connected, and the upper collecting chamber of membrane wall burner hearth is connected with drum, and the outer end of drum is provided with smoke box, and the bottom of smoke box connects
Be connected with back-end ductwork, the bottom of back-end ductwork offers outlet, the flue gas in fire tube after smoke box enters to back-end ductwork from
Outlet is discharged.
2. biomass fuel fire tube boiler according to claim 1, it is characterised in that：Superheater system in exhaust pass
System is followed successively by high temperature superheater and low temperature superheater from the bottom to top, in drum the saturated vapor of output successively through low temperature superheater and
High temperature superheater, high temperature superheater output superheated steam.
3. biomass fuel fire tube boiler according to claim 2, it is characterised in that：The upper collecting chamber of membrane wall burner hearth
Top, which is provided with and communicated with, collects vapour header, and the water in upper collecting chamber enters the hydrospace in drum, and the steam collected in vapour header enters pot
Headroom in cylinder.
4. according to the biomass fuel fire tube boiler described in claim 1 or 2 or 3, it is characterised in that：By upper in back-end ductwork
High-temperature economizer and low-level (stack-gas) economizer are disposed with, outside is supplied water laggard through low-level (stack-gas) economizer and high-temperature economizer successively
Enter in drum.
5. according to the biomass fuel fire tube boiler described in claim 1 or 2 or 3, it is characterised in that：The fire grate burning
System is set diagonally downward by one end of feeding system.
6. according to the biomass fuel fire tube boiler described in claim 1 or 2 or 3, it is characterised in that：The intermediate flue
For together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278270.4U CN207316877U (en) | 2017-09-30 | 2017-09-30 | Biomass fuel fire tube boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278270.4U CN207316877U (en) | 2017-09-30 | 2017-09-30 | Biomass fuel fire tube boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207316877U true CN207316877U (en) | 2018-05-04 |
Family
ID=62429134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721278270.4U Active CN207316877U (en) | 2017-09-30 | 2017-09-30 | Biomass fuel fire tube boiler |
Country Status (1)
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| CN (1) | CN207316877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702082A (en) * | 2017-09-30 | 2018-02-16 | 苏州海陆重工股份有限公司 | Biomass fuel fire tube boiler |
| CN110030539A (en) * | 2019-05-14 | 2019-07-19 | 李国� | Carbonize tail gas waste gas of incineration boiler, charring process system |
-
2017
- 2017-09-30 CN CN201721278270.4U patent/CN207316877U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702082A (en) * | 2017-09-30 | 2018-02-16 | 苏州海陆重工股份有限公司 | Biomass fuel fire tube boiler |
| CN110030539A (en) * | 2019-05-14 | 2019-07-19 | 李国� | Carbonize tail gas waste gas of incineration boiler, charring process system |
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