CN201166359Y - Auxiliary combustion apparatus for changing oil and gas boiler into coal water slurry combustion - Google Patents
Auxiliary combustion apparatus for changing oil and gas boiler into coal water slurry combustion Download PDFInfo
- Publication number
- CN201166359Y CN201166359Y CNU2008200433417U CN200820043341U CN201166359Y CN 201166359 Y CN201166359 Y CN 201166359Y CN U2008200433417 U CNU2008200433417 U CN U2008200433417U CN 200820043341 U CN200820043341 U CN 200820043341U CN 201166359 Y CN201166359 Y CN 201166359Y
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- boiler
- combustion chamber
- wind deflector
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Abstract
An auxiliary burning device is used for changing a fuel gas fired boiler to fire slurries, wherein a slurries burner is arranged on the front end of a burning chamber body, a group of side cyclone wind gaps are arranged on the side walls of the burning chamber body close to the slurries burner, a primary wind deflector which is oblique towards the boiler connection direction is arranged on the upper portion of the middle back portion in the burning chamber body, a taper outlet is arranged on the just lower portion of the primary wind deflector, and is connected with a detritus tank, a secondary wind deflector which is oblique towards the boiler connection direction is arranged below the rear portion of the taper outlet in the burning chamber body, the tail end of the burning chamber body is connected with a hearth of a boiler, and a slag removing outlet is arranged on the lower side walls close to the tail portion. The utility model has simple structure and smooth slag discharge, increases the burn-off rate of slurries, does not need to reconstruct the original structure of the boiler in the reconstruction process, can use fuel or gas and slurries simultaneously, greatly saves fuel cost, has low discharge and free reconstruction, provides multiple choices for users, and does not affect production as the original boiler can normally work in the reconstruction process.
Description
Technical field
The utility model relates to a kind of boiler assisted combustion device, belongs to the combustion apparatus technical field, relates in particular to the assisted combustion device that a kind of oil-burning gas-fired boiler changes combusting coal water slurry.
Background technology
China is energy resource consumption big country, and in the wastage in bulk or weight of the national energy, coal accounts for more than 75%.Energy restructuring is all being carried out in countries in the world, with the utilization of the existing energy of saving to greatest extent, and alleviates the environmental pollution that increases the weight of day by day.The energy-saving and emission-reduction situation is quite severe for China.
Water-coal-slurry is a kind of novel for oil fuel, and have lowly pollute, efficient, energy-conservation, operating cost is low etc. outstanding advantage.For effectively reducing the production process fuel cost, the fuel structure adjustment that coal derived fuel substitutes oil gas becomes energy-saving and cost-reducing main outlet.If all realization is alternative with the water-coal-slurry of clean coal fuel with the fuel of existing oil-burning gas-fired boiler, can save 2/3rds crude oil every year, and the fuel savings cost is more than 50%.
At present, the every technology of the water-coal-slurry of China is all ripe, and in the boiler that is applied to every field of success, yet, still using the enterprise of oil-burning gas-fired boiler for major part, owing to be subjected to the restriction of factors such as cost and production, when the fuel-firing gas-firing injection boiler is changed combusting coal water slurry, can design a kind ofly under former boiler pressurized body part is not done to change, realize that water-coal-slurry replaces the auxiliary device of original oil-burning gas-fired boiler most important.
The utility model content
The purpose of this utility model provides under the situation that former boiler pressurized body part is not done to change, and realizes that water-coal-slurry replaces a kind of oil-burning gas-fired boiler of original fuel to change the assisted combustion device of combusting coal water slurry.
The utility model is achieved in that a kind of oil-burning gas-fired boiler changes the assisted combustion device of combusting coal water slurry, comprise combustion chamber body, water coal slurry burner and detritus tank, water coal slurry burner is arranged on the front end of combustion chamber body, sidewall near water coal slurry burner on the combustion chamber body is provided with one group of sidespin air port, be provided with a wind deflector that tilts to boiler closure above the postmedian in combustion chamber body, be provided with conical outlet under the wind deflector, this conical outlet links to each other with detritus tank; The lower rear of combustion chamber body inner conical outlet is provided with the secondary wind deflector to the inclination of boiler closure; The combustion chamber body tail end links to each other with boiler furnace, and is provided with except that cinder notch in the lower sidewalls near afterbody.
Described combustion chamber body is a horizontal type structure.
Described water coal slurry burner is arranged on the front top middle position of combustion chamber body.
The utlity model has following advantage: simple in structure, safe and reliable; Owing in the combustion chamber, be provided with wind deflector and secondary wind deflector respectively, high-temperature fuel gas utilizes baffle plate to realize Z-shaped air inlet in the combustion chamber, not only can carry out deslagging smoothly, and increase stroke, improve the burn-off rate of water-coal-slurry, and then guarantee that improved boiler has the higher thermal efficiency.In addition, in to existing boiler improvement process, need not to change the original structure of boiler, can realize that fuel oil (gas) and water-coal-slurry are dual-purpose, saved fuel cost greatly, and discharge low, do not have any transformation risk, keep original combustion apparatus, provide multiple choices to the user, transformation process Central Plains boiler is work as usual, does not influence production.
Description of drawings
Fig. 1 changes the structural representation of the assisted combustion device of combusting coal water slurry for a kind of oil-burning gas-fired boiler of the utility model.
Among the figure: the 1-combustion chamber body; 2-water water coal slurry burner; 3-sidespin air port; Wind deflector of 4-; 5-secondary wind deflector; The 6-detritus tank; The 7-secondary removes cinder notch; The 8-boiler.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model, structure and the course of work are further described.
A kind of oil-burning gas-fired boiler changes the assisted combustion device of combusting coal water slurry, as shown in Figure 1, comprise combustion chamber body 1, water coal slurry burner 2 and detritus tank 6, this 1 body of combustion chamber is a horizontal type structure, water coal slurry burner 2 is arranged on the front top middle position of combustion chamber body 1, sidewall near water coal slurry burner 2 on the combustion chamber body 1 is provided with one group of sidespin air port 3, be provided with a wind deflector 4 that tilts to boiler furnace closure above the postmedian in combustion chamber body 1, be provided with conical outlet under the wind deflector 4, this conical outlet links to each other with detritus tank 6; The lower rear of combustion chamber body 1 inner conical outlet is provided with the secondary wind deflector 5 to the inclination of boiler closure; Combustion chamber body 1 tail end links to each other with boiler furnace 8, and is provided with except that cinder notch 7 in the lower sidewalls near afterbody.
The course of work of the present utility model is as follows: the front top middle position at combustion chamber body 1 is provided with water coal slurry burner 2, the combustion chamber body front portion is provided with one group of sidespin air port 3, sidespin air port 3 is the spiral-flow type air register, and the secondary wind of particular design makes the water-coal-slurry torch produce strong rotation.The torch of rotation is added the maelstrom dynamics by tangential secondary wind in the stable burning room, and forms a big high temperature swirl flame aerodynamic field.Water-coal-slurry is in this big high temperature swirl flame aerodynamic field, experience water evaporates, volatilize, separate out the pre-burning of burning and part carbon granules, this flame aerodynamic field burns away to the diffusion of this device radiant section under the effect of air-flow and negative pressure afterwards, the water-coal-slurry carbon granules is fully burned in rotation flue gas stream, run into a wind deflector 4 of postmedian top, air-flow is turned back to oblique below; Because heating surface is not arranged in the smooth combustion chamber, so ignition temperature is high, far surpass ash fusion point.A large amount of ash contents are molten into liquid state, and the detritus tank 6 below flowing into along a wind deflector 4 can not enter in the boiler it, in order to avoid the serious dust stratification of boiler heating surface influences boiler output.This kind caught the slag mode can remove ash content more than 80%.The lower rear of wind deflector and conical outlet is provided with secondary wind deflector 5, and secondary wind deflector 5 also is obliquely installed, but incline direction is opposite with a wind deflector 4; Flue gas is through the break-in of wind deflector, and it is capable mobile to be the Z word, enters boiler furnace at the device tail end, and the flow process of zigzag has increased burning time, makes water-coal-slurry fully to burn, and improves efficiency of combustion.Be provided with except that cinder notch 7 in the device lower rear, carry out the secondary slagging-off.
Claims (3)
1. an oil-burning gas-fired boiler changes the assisted combustion device of combusting coal water slurry, comprise combustion chamber body (1), water coal slurry burner (2) and detritus tank (6), it is characterized in that: water coal slurry burner (2) is arranged on the front end of combustion chamber body (1), the sidewall that combustion chamber body (1) is gone up near water coal slurry burner (2) is provided with one group of sidespin air port (3), be provided with a wind deflector (4) that tilts to boiler closure above the postmedian in combustion chamber body, be provided with conical outlet under the wind deflector (4), this conical outlet links to each other with detritus tank (6); The lower rear of combustion chamber body (1) inner conical outlet is provided with the secondary wind deflector (5) to the inclination of boiler closure; Combustion chamber body (1) tail end links to each other with boiler furnace, and is provided with except that cinder notch (7) in the lower sidewalls near afterbody.
2. a kind of oil-burning gas-fired boiler as claimed in claim 1 changes the assisted combustion device of combusting coal water slurry, it is characterized in that: described combustion chamber body is a horizontal type structure.
3. a kind of oil-burning gas-fired boiler as claimed in claim 1 changes the assisted combustion device of combusting coal water slurry, it is characterized in that: described water coal slurry burner (2) is arranged on the front top middle position of combustion chamber body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200433417U CN201166359Y (en) | 2008-01-25 | 2008-01-25 | Auxiliary combustion apparatus for changing oil and gas boiler into coal water slurry combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200433417U CN201166359Y (en) | 2008-01-25 | 2008-01-25 | Auxiliary combustion apparatus for changing oil and gas boiler into coal water slurry combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166359Y true CN201166359Y (en) | 2008-12-17 |
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ID=40191749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200433417U Expired - Fee Related CN201166359Y (en) | 2008-01-25 | 2008-01-25 | Auxiliary combustion apparatus for changing oil and gas boiler into coal water slurry combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166359Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090370A (en) * | 2013-01-25 | 2013-05-08 | 西安交通大学 | Air distribution structure for improving combustion efficiency of fuel oil steam injection boiler and air distribution method |
| CN103759253A (en) * | 2011-12-31 | 2014-04-30 | 贵州中烟工业有限责任公司 | Coal water slurry boiler system with auxiliary combustion chamber and working method thereof |
-
2008
- 2008-01-25 CN CNU2008200433417U patent/CN201166359Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759253A (en) * | 2011-12-31 | 2014-04-30 | 贵州中烟工业有限责任公司 | Coal water slurry boiler system with auxiliary combustion chamber and working method thereof |
| CN103090370A (en) * | 2013-01-25 | 2013-05-08 | 西安交通大学 | Air distribution structure for improving combustion efficiency of fuel oil steam injection boiler and air distribution method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GUANGDONG DAHUA RENSHENG SCIEN-TECH Co., LTD. Assignor: Guangzhou Dahua Desheng Science & Technology Co., Ltd. Contract fulfillment period: 2009.6.10 to 2014.6.10 Contract record no.: 2009440000473 Denomination of utility model: Auxiliary combustion apparatus for changing oil and gas boiler into coal water slurry combustion Granted publication date: 20081217 License type: Exclusive license Record date: 20090619 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.10 TO 2014.6.10; CHANGE OF CONTRACT Name of requester: GUANGDONG DAHUA RENSHENG SCIEN-TECH CO., LTD. Effective date: 20090619 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20140125 |