CN2811842Y - Reverse burning type coal gasifying boiler - Google Patents
Reverse burning type coal gasifying boiler Download PDFInfo
- Publication number
- CN2811842Y CN2811842Y CN 200520090672 CN200520090672U CN2811842Y CN 2811842 Y CN2811842 Y CN 2811842Y CN 200520090672 CN200520090672 CN 200520090672 CN 200520090672 U CN200520090672 U CN 200520090672U CN 2811842 Y CN2811842 Y CN 2811842Y
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- China
- Prior art keywords
- collecting tube
- drum
- tube
- fire
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a reverse burning type coal gasifying boiler which is provided with an upright drum, a hearth on one side, and a convection heating section in the drum, wherein the convection heating section is provided with a fire cylinder which is coaxial with the drum and is arranged in the drum; horizontal array tubes are arranged in the fire cylinder, and a water jacket is arranged between the fire cylinder and the drum; a radiation heating section is arranged in the hearth, and is provided with an upper heat collecting tube, a left lower heat collecting tube and a right lower heat collecting tube which are connected with the water jacket; water-cooled walls are respectively arranged among both sides of the upper heat collecting tube, the left lower heat collecting tube and the right lower heat collecting tube, and the outside ends of the left lower heat collecting tube and the right lower heat collecting tube are connected with lateral heat collectors respectively; hollow tubular grates are arranged between the lateral heat collector and the water jacket which is between the fire cylinder and the drum, and a fume exhausting channel is connected with the lower parts of the fire grate and the fire cylinder of the hearth. The utility model adopts reverse combustion. When the fuel is burnt, the inflammable gas produced in an initial stage, inflammable gas produced by the gasification and fine carbon granules are burned by reversely downwards entering the combustion layer instead of being discharged upwards so as to increase the coal combustion efficiency, to have no air pollution, and to increase the heat transmission of the hollow tubular grate.
Description
Technical field
The utility model relates to the burner hearth of a kind of coal-burning boiler, particularly a kind of coal-burning boiler.
Background technology
Coal-burning boiler has burner hearth and boiler body, boiler body has radiation heating section and convection current heating section, burner hearth is at the radiation heating section, fire grate is arranged in the burner hearth, the sidewall of burner hearth has fire door and air inlet, burner hearth is behind the radiation heating section of radiation heating section internal combustion heating boiler body, and high-temperature flue gas enters the convection current heating section, the convection current heating section of heat hot boiler body.In the prior art, coal-burning boiler just fires, the discharge flue that the burner hearth of the coal-burning boiler that is just firing leads to the convection current heating section is in burner hearth above the fire grate, the coal-burning boiler that is just firing coal when work is on fire grate, to feed sufficient air in the burner hearth, allow coal completing combustion under the condition that enough oxygen is arranged, air is to enter from the fire grate below during coal burning, and the high-temperature flue gas of coal after the burner hearth internal combustion enters the convection current heating section through the discharge flue above burner hearth.The coal of this combustion in right direction coal-burning boiler on fire grate is upwards burning, imflammable gas that produces in when burning and tiny carbon granule all from above discharge, make imflammable gas and tiny carbon granule can not get burning utilization, not only make the efficiency of combustion of coal low, also air-polluting environment because discharging imflammable gas and tiny carbon granule; In addition, fire grate is that solid steel bar is made, and does not make full use of fire grate improves boiler as heating surface area heat output.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of efficiency of combustion height of coal, the bigger a kind of reverse combustion type gasification coal-fired boiler of heat output of boiler.
The utility model is realized with the following method.
The reverse combustion type gasification coal-fired boiler has vertical drum, there is burner hearth the side of drum, shell and tube convection current heating section is arranged in the drum, shell and tube convection current heating section have in drum with drum coaxial the fire tube, the tubulation that level is arranged in the fire tube, between fire tube and the drum is water jacket, the radiation heating section is arranged in the burner hearth, the radiation heating section has a last thermal-collecting tube and a left side, the bottom right thermal-collecting tube, the both sides of last thermal-collecting tube and a left side, be connected with water-cooling wall between the thermal-collecting tube of bottom right respectively, a left side, the outer end of bottom right thermal-collecting tube is connected with horizontal thermal-collecting tube, laterally be connected with the hollow pipe fire grate between the water jacket between thermal-collecting tube and fire tube and the drum, last thermal-collecting tube and following thermal-collecting tube and fire tube communicate with water jacket between the drum, the fire grate below of burner hearth is connected with discharge flue with the below of fire tube, there is the discharge flue that leads to the outside top of fire tube, the front side wall of burner hearth, on the fire grate top has, following two coal feed points, the front side wall of burner hearth, the fire grate below has except that cinder notch, the left side of burner hearth, air regulating port is arranged at right side wall top, there is water inlet the below of water jacket, and there is water outlet/steam ports the top of water jacket.
During use, the discharge flue that the outside is led in fire tube of the present utility model top links to each other with chimney with air-introduced machine.Before the use, from water inlet water filling in water jacket, make in the water jacket, last thermal-collecting tube, a left side, bottom right thermal-collecting tube and water-cooling wall are filled with water, from last, following two coal feed points timber and coal of igniting of in fire grate, packing into, coal ignites, because the discharge flue between burner hearth and fire tube is below fire grate, coal is above fire grate during fuel combustion, imflammable gas that produces and tiny carbon granule are not upwards to discharge, but reverse to enter the fuel combustion layer downwards burned, coal fuel is when burning, because burner hearth does not have the air inlet of big air quantity, coal fuel is to burn under anaerobic condition in the burner hearth, coal burns under anaerobic condition and produces carbon monoxide, carbon monoxide is reverse, and to enter the fuel combustion layer downwards burned, coal when burning required minor amounts of oxygen with the left side of burner hearth, the air regulating port on right side wall top is regulated, and allowing the oxygen that enters burner hearth make coal fuel is can produce under the fired state of carbon monoxide to burn under anaerobic condition.
The utility model adopts reverse burning, during fuel combustion, imflammable gas gas that the imflammable gas that initial stage produces, gasification produce and tiny carbon granule are not upwards to discharge, but reverse to enter the fuel combustion layer downwards burned, allow imflammable gas and tiny carbon granule obtain burning utilization, improve the efficiency of combustion of coal, do not contained imflammable gas and tiny carbon granule in the smoke evacuation, can air-polluting environment; In addition, fire grate is that hollow steel pipe is made, and fire grate is that hollow steel pipe communicates with water jacket, makes full use of fire grate as heating surface area, has improved the heat output of boiler.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that the master of reverse combustion type gasification coal-fired boiler looks the complete section schematic diagram;
Fig. 2 is that schematic diagram cuts open in the side-looking office of reverse combustion type gasification coal-fired boiler.
The specific embodiment
Fig. 1, among Fig. 2, the reverse combustion type gasification coal-fired boiler has vertical drum 1, there is burner hearth 2 side of drum, shell and tube convection current heating section is arranged in the drum, shell and tube convection current heating section have in drum with drum coaxial fire tube 3, the tubulation 4 that level is arranged in the fire tube, between fire tube and the drum is water jacket 5, the radiation heating section is arranged in the burner hearth, the radiation heating section has a last thermal-collecting tube 6 and a left side, bottom right thermal-collecting tube 7, the both sides of last thermal-collecting tube and a left side, be connected with standpipe water-cooling wall 8 between the thermal-collecting tube of bottom right respectively, about down the outer end of thermal-collecting tube be connected with horizontal thermal-collecting tube 9, laterally be connected with hollow pipe fire grate 10 between the water jacket between thermal-collecting tube and fire tube and the drum, last thermal-collecting tube and following thermal-collecting tube and fire tube communicate with water jacket between the drum, the fire grate below of burner hearth is connected with discharge flue 11 with the below of fire tube, there is the discharge flue 12 that leads to the outside top of fire tube, the front side wall of burner hearth, on the fire grate top has, following two coal feed points 13,14, the front side wall of burner hearth, the fire grate below has except that cinder notch 15, the left side of burner hearth, air regulating port 16 is arranged at right side wall top, there is water inlet 17 below of following thermal-collecting tube, and there is water outlet/steam ports 18 top of water jacket.
Above-mentioned water-cooling wall is a standpipe, and the vertical pipe type water-cooling wall is used for steam boiler.Water-cooling wall also can be a chuck, and the chuck water-cooling wall is used for hot-water boiler.
Claims (3)
1. reverse combustion type gasification coal-fired boiler, it is characterized in that: vertical drum is arranged, there is burner hearth the side of drum, shell and tube convection current heating section is arranged in the drum, shell and tube convection current heating section have in drum with drum coaxial the fire tube, the tubulation that level is arranged in the fire tube, between fire tube and the drum is water jacket, the radiation heating section is arranged in the burner hearth, the radiation heating section has a last thermal-collecting tube and a left side, the bottom right thermal-collecting tube, the both sides of last thermal-collecting tube and a left side, be connected with water-cooling wall between the thermal-collecting tube of bottom right respectively, a left side, the outer end of bottom right thermal-collecting tube is connected with horizontal thermal-collecting tube, laterally be connected with the hollow pipe fire grate between the water jacket between thermal-collecting tube and fire tube and the drum, last thermal-collecting tube and following thermal-collecting tube and fire tube communicate with water jacket between the drum, the fire grate below of burner hearth is connected with discharge flue with the below of fire tube, there is the discharge flue that leads to the outside top of fire tube, the front side wall of burner hearth, on the fire grate top has, following two coal feed points, the front side wall of burner hearth, the fire grate below has except that cinder notch, the left side of burner hearth, air regulating port is arranged at right side wall top, there is water inlet the below of water jacket, and there is water outlet/steam ports the top of water jacket.
2. by the described reverse combustion type gasification coal-fired boiler of claim 1, it is characterized in that: described water-cooling wall is the vertical pipe type water-cooling wall.
3. by the described reverse combustion type gasification coal-fired boiler of claim 1, it is characterized in that: described water-cooling wall is the jacket type water-cooling wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090672 CN2811842Y (en) | 2005-05-08 | 2005-05-08 | Reverse burning type coal gasifying boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090672 CN2811842Y (en) | 2005-05-08 | 2005-05-08 | Reverse burning type coal gasifying boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811842Y true CN2811842Y (en) | 2006-08-30 |
Family
ID=36938232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090672 Expired - Fee Related CN2811842Y (en) | 2005-05-08 | 2005-05-08 | Reverse burning type coal gasifying boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811842Y (en) |
-
2005
- 2005-05-08 CN CN 200520090672 patent/CN2811842Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |