CN202221076U - Biomass boiler with high energy efficiency - Google Patents
Biomass boiler with high energy efficiency Download PDFInfo
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- CN202221076U CN202221076U CN2011203500754U CN201120350075U CN202221076U CN 202221076 U CN202221076 U CN 202221076U CN 2011203500754 U CN2011203500754 U CN 2011203500754U CN 201120350075 U CN201120350075 U CN 201120350075U CN 202221076 U CN202221076 U CN 202221076U
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Abstract
The utility model provides a biomass boiler with high energy efficiency. A feed hopper and a boiler body are arranged on a chain grate. An economizer is communicated with the tail end of the boiler body. A furnace, a burning-out chamber, a flue, an upper boiler barrel, a lower boiler barrel, a front arch, a rear arch and a water wall are arranged inside the boiler body. The water wall is composed of a front-wall water wall, a side-wall water wall and a rear-side water wall. The furnace is composed of the front arch, the front-wall water wall, the rear-wall water wall, the side-wall water wall and the rear arch. Secondary air inlet devices are also arranged on the front arch, the rear arch and the side-wall water wall. Both the burning-out chamber and the flue are arranged between the upper boiler barrel and the lower boiler barrel. The burning-out chamber is arranged at the front end of the flue. A longitudinal convection bundle, an ash blower and an ash falling device are distributed in the flue. Two ends of the convection bundle are respectively communicated with the upper boiler barrel and the lower boiler barrel. According to the utility model, the airflow perturbation between the front arch and the rear arch in the furnace and the mixing of fuel and the air are reinforced, so that the combustion efficiency of the boiler is improved.
Description
Technical field
The utility model relates to field of boilers, a kind of especially biomass boiler, especially a kind of high energy efficiency biomass boiler.
Background technology
At fuel is in the Industrial Boiler of living beings, and its combustion apparatus usually more adopts horizontal chained fire grate, because to the obscure understanding of biomass fuel combustion mechanism; Therefore the burner in the existing biomass boiler adopts the version of coal-burning boiler mostly: the boiler furnace height is low, and face arch is low and grow, back sagitta and growing; Do not have ash dropped unit and soot blower etc. in the flue of boiler, so the boiler combustion situation worsens gas and solid incomplete combustion loss increasing; Fire box temperature is high, is prone to slagging scorification, convection pass dust stratification, bonding serious; Exhaust gas temperature is high, and boiler efficiency is low, and boiler output is not enough.
Summary of the invention
To the weak point in the above-mentioned technology, the utility model provides a kind of can strengthen the flow perturbation between the forward and backward arch and fuel and Air mixing in the burner hearth, thereby improves the high energy efficiency biomass boiler of boiler combustion efficiency.
For realizing above-mentioned purpose; The utility model provides a kind of high energy efficiency biomass boiler; Constitute by traveling-grate stoker, boiler body, feed hopper and economizer; Said feed hopper and said boiler body are arranged on the said traveling-grate stoker; Said economizer is connected with the end of said boiler body, and said boiler body inside is provided with burner hearth, secondary furnace, flue, upper drum, lower drum, face arch, rear arch and water-cooling wall, and said water-cooling wall is made up of front water wall, side water wall and rear water wall; Said burner hearth is made up of said face arch, said front water wall, said rear water wall, said side water wall and said rear arch; On said face arch and said rear arch and said side water wall, the secondary air device is installed also, said secondary furnace and said flue all are arranged between said upper drum and the said lower drum, and said secondary furnace is arranged on the front end of said flue; In said flue, be provided with convection bank, soot blower and ash dropped unit, the two ends of said convection bank are connected with said upper drum and said lower drum respectively.
Said flue is made up of preceding partition wall, mid-board and back partition wall; Said mid-board is arranged between said preceding partition wall and the said back partition wall; Said soot blower is arranged on the upside of said ash dropped unit, and its two ends are connected with said back partition wall with said mid-board respectively, and said ash dropped unit is arranged on the bottom of said flue; And be connected with said traveling-grate stoker, said secondary furnace is arranged between said preceding partition wall and the said rear water wall.
Said soot blower is arranged on the rear end of said flue, and the end of said soot blower is through the inside of said back partition wall.
Be provided with on the surface of said soot blower and be used for a plurality of apertures that the bonding ash in the said convection bank is blown down, said soot blower is connected with outside high-pressure blast introducing equipment or steam introducing equipment.
Said front water wall and said rear water wall are separately positioned on the top of said face arch and said rear arch.
Said secondary air device is made up of air main and a plurality of air distribution lines of being arranged on the said air main, and an end of said air distribution line is connected with said air main.
The internal diameter of said upper drum and said lower drum is 900mm; The outer wall of said upper drum and the outer wall thickness of said lower drum are 16mm; Said lower drum is arranged on the upper end of said rear arch, is arranged on the chassis through two drum bearings, and the end of said lower drum also is provided with movable bearing support.
Said upper drum also is connected with said front wall cold water wall, said side wall cold water wall and said back wall cold water wall respectively.
Said economizer is streamlined fin type cast iron gilled tube economizer, and the inside of said economizer is made up of a plurality of economizer tube.
Distance between said face arch to the said traveling-grate stoker is 800mm, and the length of said face arch is 300mm, and the distance between said rear arch to the said traveling-grate stoker is 600mm, and the distance between said face arch and the said rear arch is 2500mm.
Compared with prior art, the utlity model has following advantage:
The utlity model has compact conformation, volume is little, cost is low, floor space is little and advantage such as cleaning, environmental protection, efficient energy-saving.The utility model is strengthened flow perturbation and fuel and the Air mixing between the forward and backward arch in the burner hearth; Prolonged the time of staying of fuel at burner hearth; Make that furnace cavity burning is more violent, burning is more abundant, reduce the gas incomplete combustion loss, prevent the boiler over-emitting black exhaust; Improve boiler combustion efficiency, be beneficial to environmental protection.
Description of drawings
Fig. 1 is the cutaway view of the utility model;
Fig. 2 be among Fig. 1 A-A to cutaway view;
Fig. 3 is the structure chart of secondary air device among Fig. 1.
Main symbol description is following:
1-traveling-grate stoker 2-feed hopper 3-face arch
4-secondary air device 5-front water wall 6-upper drum
7-side water wall 8-burner hearth 9-rear arch
10-rear water wall 11-secondary furnace 12-convection bank
13-lower drum 14-soot blower 15-ash dropped unit
16-economizer 17-flue 18-air main
Partition wall 21-mid-board before the 19-air distribution line 20-
Partition wall behind the 22-
The specific embodiment
Below with embodiment the technical scheme of the utility model is further described, will help advantage to the technical scheme of the utility model, effect has understanding further.
Like Fig. 1 and shown in Figure 2; The utility model provides a kind of high energy efficiency biomass boiler; Be made up of traveling-grate stoker 1, boiler body, feed hopper 2 and economizer 16, wherein, feed hopper 2 and boiler body are arranged on the traveling-grate stoker 1; And be arranged on chain fire-gate front end, economizer 16 is connected with the end of boiler body.
Boiler body inside is provided with burner hearth 8, secondary furnace 11, flue 17, upper drum 6, lower drum 13, face arch 3, rear arch 9 and water-cooling wall, and wherein, water-cooling wall is made up of with rear water wall 10 front water wall 5, side water wall 7.Upper drum 6 is model with lower drum 13 and is welded for the Q245R steel plate; Its internal diameter is 900mm; The outer wall thickness of the outer wall of upper drum 6 and lower drum 13 is 16mm; Lower drum is arranged on the upper end of rear arch, is arranged on the chassis through two drum bearing (not shown)s, and the end of lower drum also is provided with the movable bearing support (not shown).Upper drum 6 also is connected with front wall cold water wall 5, side wall cold water wall 7 and back wall cold water wall 10 respectively.Burner hearth 8 is made up of with rear arch 9 face arch 3, front water wall 5, rear water wall 10, side water wall 7; The side wall cold water wall 7 of burner hearth 8 both sides is made up of 113
pipes, and the spacing between two adjacent pipes is 53mm.In addition; Front wall cold water wall and rear water wall pipe are 16
pipes and constitute, and the spacing between adjacent two pipes is 150mm.Distance between face arch 3 to the traveling-grate stoker 1 is 800mm, and the length of face arch 3 is 300mm, and the distance between rear arch 9 to the traveling-grate stoker 1 is 600mm, and the distance between face arch 3 and the rear arch 9 is 2500mm.Front water wall 5 and rear water wall 10 are separately positioned on the top of face arch 3 and rear arch 9, on face arch 3 and rear arch 9 and two side water walls 7, secondary air device 4 are installed also.This secondary air device is made up of air main and a plurality of air distribution lines of being arranged on the air main, and an end of air distribution line is connected with air main.
Flue 17 is arranged between upper drum 6 and the lower drum 13; Constitute with back partition wall 22 by preceding partition wall 20, mid-board 21, before mid-board 21 is arranged between partition wall 20 and the back partition wall 22, thereby become two loop transversal flows mobile flue gas through mid-board is set; Can improve cigarette speed, strengthen conducting heat.In flue 17, be distributed with convection bank longitudinally 12, soot blower 14 and ash dropped unit 15, wherein, ash dropped unit 15 materials are heat-resisting cast iron, and its quantity is four, and are distributed in 17 bottoms of flue, and four ash dropped units also are connected with traveling-grate stoker respectively.Flue 17 dust stratifications fall on the traveling-grate stoker 1 through ash dropped unit 15, and then are transported to mucking machine to dust stratification through traveling-grate stoker 1.Be furnished with the convection bank 12 of 846
in the flue 17; Convection bank adopts longitudinally that mode is distributed in the flue, and convection bank 12 adopts welding manner to be connected with upper drum and lower drum respectively.Soot blower is arranged on the rear end of flue, and soot blower also is arranged on the upside of ash dropped unit simultaneously, and its two ends are connected with mid-board 21 and back partition wall 22 respectively.Soot blower is that a length 1900mm, diameter are the pipe of 45mm; Be provided with on the surface of soot blower and be used for a plurality of aperture (not shown)s that the bonding ash in the convection bank is blown down, soot blower is connected with outside high-pressure blast introducing equipment or steam introducing equipment.Soot blower 14 is arranged on the rear end of flue 17, and its front end is installed on the mid-board 21, terminal inside through back partition wall 22.
Secondary furnace 11 also is arranged between upper drum 6 and the lower drum 13, and secondary furnace 11 is arranged on the front end of flue 17.Secondary furnace 11 is arranged between preceding partition wall 20 and the rear water wall 10.The both sides of secondary furnace are
water-cooling wall pipe, and its tube pitch is 90mm.
Economizer 16 is streamlined fin type cast iron gilled tube economizer, and length is 2000mm, and material is HT200.Economizer 16 is made up of 80 economizer tube, lines up 8 * 10 versions, and water inlet is divided into two-way by water inlet collection case and flows in the economizer.
As shown in Figure 3, on face arch and rear arch and two side water walls, the secondary air device is installed also.This secondary air device is made up of air main and a plurality of air distribution lines of being arranged on the air main, and an end of air distribution line is connected with air main.The 100mm place is provided with the air main 18 in the secondary air device below face arch; 50mm place, rear arch below is provided with the air main 18 in the secondary air device; On two side water walls, also be provided with air main 18, air main 18 in face arch and air main 18 sustained heights in the rear arch.Wherein, be respectively equipped with 5 air distribution lines 19 on the air main in face arch and the rear arch, and be respectively equipped with 6 air distribution lines 19 on the air main of two side water walls.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. high energy efficiency biomass boiler; Constitute by traveling-grate stoker, boiler body, feed hopper and economizer; Said feed hopper and said boiler body are arranged on the said traveling-grate stoker; Said economizer is connected with the end of said boiler body; Said boiler body inside is provided with burner hearth, secondary furnace, flue, upper drum, lower drum, face arch, rear arch and water-cooling wall, and said water-cooling wall is made up of front water wall, side water wall and rear water wall, it is characterized in that; Said burner hearth is made up of said face arch, said front water wall, said rear water wall, said side water wall and said rear arch; On said face arch and said rear arch and said side water wall, the secondary air device is installed also, said secondary furnace and said flue all are arranged between said upper drum and the said lower drum, and said secondary furnace is arranged on the front end of said flue; In said flue, be provided with convection bank, soot blower and ash dropped unit, the two ends of said convection bank are connected with said upper drum and said lower drum respectively.
2. high energy efficiency biomass boiler according to claim 1; It is characterized in that; Said flue is made up of preceding partition wall, mid-board and back partition wall, and said mid-board is arranged between said preceding partition wall and the said back partition wall, and said soot blower is arranged on the upside of said ash dropped unit; Its two ends are connected with said back partition wall with said mid-board respectively; Said ash dropped unit is arranged on the bottom of said flue, and is connected with said traveling-grate stoker, and said secondary furnace is arranged between said preceding partition wall and the said rear water wall.
3. high energy efficiency biomass boiler according to claim 2 is characterized in that said soot blower is arranged on the rear end of said flue, and the end of said soot blower is through the inside of said back partition wall.
4. high energy efficiency biomass boiler according to claim 3; It is characterized in that; Be provided with on the surface of said soot blower and be used for a plurality of apertures that the bonding ash in the said convection bank is blown down, said soot blower is connected with outside high-pressure blast introducing equipment or steam introducing equipment.
5. high energy efficiency biomass boiler according to claim 4 is characterized in that, said front water wall and said rear water wall are separately positioned on the top of said face arch and said rear arch.
6. high energy efficiency biomass boiler according to claim 1 is characterized in that, said secondary air device is made up of air main and a plurality of air distribution lines of being arranged on the said air main, and an end of said air distribution line is connected with said air main.
7. high energy efficiency biomass boiler according to claim 1; It is characterized in that; The internal diameter of said upper drum and said lower drum is 900mm, and the outer wall of said upper drum and the outer wall thickness of said lower drum are 16mm, and said lower drum is arranged on the upper end of said rear arch; Be arranged on the chassis through two drum bearings, the end of said lower drum also is provided with movable bearing support.
8. high energy efficiency biomass boiler according to claim 7 is characterized in that, said upper drum also is connected with said front wall cold water wall, said side wall cold water wall and said back wall cold water wall respectively.
9. according to claim 1 or 3 described high energy efficiency biomass boilers, it is characterized in that said economizer is streamlined fin type cast iron gilled tube economizer, the inside of said economizer is made up of a plurality of economizer tube.
10. high energy efficiency biomass boiler according to claim 1; It is characterized in that; Distance between said face arch to the said traveling-grate stoker is 800mm; The length of said face arch is 300mm, and the distance between said rear arch to the said traveling-grate stoker is 600mm, and the distance between said face arch and the said rear arch is 2500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203500754U CN202221076U (en) | 2011-09-19 | 2011-09-19 | Biomass boiler with high energy efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203500754U CN202221076U (en) | 2011-09-19 | 2011-09-19 | Biomass boiler with high energy efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202221076U true CN202221076U (en) | 2012-05-16 |
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ID=46043102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203500754U Expired - Fee Related CN202221076U (en) | 2011-09-19 | 2011-09-19 | Biomass boiler with high energy efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202221076U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840569A (en) * | 2012-08-07 | 2012-12-26 | 广州贝龙环保热力设备股份有限公司 | Assembly type biomass briquette fuel steam boiler |
| CN103925592A (en) * | 2014-04-30 | 2014-07-16 | 河南农业大学 | Biomass chain boiler |
| CN105042572A (en) * | 2015-08-31 | 2015-11-11 | 衡阳市大成锅炉有限公司 | Boiler capable of effectively lowering nitrogen oxide emission |
| CN105042626A (en) * | 2015-09-17 | 2015-11-11 | 峨眉山市文龙清洁燃煤服务有限公司 | Method for transforming coal-fired boiler into biomass boiler |
-
2011
- 2011-09-19 CN CN2011203500754U patent/CN202221076U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840569A (en) * | 2012-08-07 | 2012-12-26 | 广州贝龙环保热力设备股份有限公司 | Assembly type biomass briquette fuel steam boiler |
| CN103925592A (en) * | 2014-04-30 | 2014-07-16 | 河南农业大学 | Biomass chain boiler |
| CN105042572A (en) * | 2015-08-31 | 2015-11-11 | 衡阳市大成锅炉有限公司 | Boiler capable of effectively lowering nitrogen oxide emission |
| CN105042626A (en) * | 2015-09-17 | 2015-11-11 | 峨眉山市文龙清洁燃煤服务有限公司 | Method for transforming coal-fired boiler into biomass boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING AOKE RUIFENG NEW ENERGY CO., LTD. Free format text: FORMER NAME: BEIJING AOKERUIFENG ELECTROMECHANICAL TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100101 Beijing city Chaoyang District Anxiang Lane No. 11 building B block 17 layer Patentee after: Beijing Aoke Ruifng New Energy Co., Ltd. Address before: 100101 Beijing city Chaoyang District Anxiang Lane No. 11 building B block 17 layer Patentee before: Beijing Aoke Ruifeng Mechanical & Electrical Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20200919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |