CN202647835U - Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates - Google Patents
Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates Download PDFInfo
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- CN202647835U CN202647835U CN 201220087987 CN201220087987U CN202647835U CN 202647835 U CN202647835 U CN 202647835U CN 201220087987 CN201220087987 CN 201220087987 CN 201220087987 U CN201220087987 U CN 201220087987U CN 202647835 U CN202647835 U CN 202647835U
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- boiler
- air duct
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- secondary air
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Abstract
The utility model discloses smoke eliminating and energy saving combustion equipment of a boiler with fixed fire grates, which mainly comprises a main air channel, a secondary air inlet, an air inlet channel and branched air channels. Ventilating porous bricks are mounted at tail ends of the branched air channels. A certain quantity of vents are disposed inside each ventilating porous brick. The circulating area of the air inlet channel is larger than that of the main air channel. The circulating area of the main air channel is larger than the sum of circulating areas of all the ventilating porous bricks. Accordingly, the speed of secondary air is reduced after the secondary air flows through the main air channel. The secondary air is uniformly distributed into the branched air channels. The quantity of the branched air channels is determined according to the power of the boiler and the structure of a combustion chamber and ranges from 4 to 10. The branched air channels are circumferentially and uniformly distributed and mounted. A reasonable quantity of vents are arranged in each ventilating porous brick. Accordingly, the speed of the secondary air can be increased. The secondary air can be divided into multiple channels of tiny high-speed airflow to enter a hearth to be combusted. The smoke eliminating and energy saving combustion equipment of the boiler with the fixed fire grates solves technical problems of low combustion ratio, insufficient combustion, generated black smoke, polluted environments are, low heat efficiency and the like in the prior art.
Description
Technical field
The utility model belongs to the boiler technology field, relates to a kind of fixed grate boiler fume-eliminating energy-saving combustion apparatus.
Background technology
At present, China's miniature boiler great majority adopt the fixed grate combustion chamber.Although the Secondary Air structure of the fixed grate boiler of prior art has been improved the combustion efficiency of boiler to a certain extent, but the problem such as exist also that combustion rate is low, insufficient, the over-emitting black exhaust of burning, environmental pollution, the thermal efficiency are low, so the Secondary Air structure result of use of the fixed grate boiler of prior art is not very desirable.
Summary of the invention
The purpose of this utility model is the poor technical barrier of Secondary Air structure result of use that solves the fixed grate boiler of prior art, a kind of fixed grate boiler fume-eliminating energy-saving combustion apparatus is provided, the technical problems such as novel secondary wind structure has solved that the combustion rate that exists in the prior art is low, insufficient, the over-emitting black exhaust of burning, environmental pollution, the thermal efficiency are low have overcome the deficiencies in the prior art.
The utility model is that the technical scheme that solves the problems of the technologies described above employing is:
A kind of fixed grate boiler fume-eliminating energy-saving combustion apparatus, mainly formed by main air duct and coupled Secondary Air air inlet, air inlet air channel, branch air duct, it is characterized in that: described branch air duct end is equipped with the air vent brick, and air vent brick internal placement has the air vent of some; The quantity of described branch air duct is defined as 4～10 according to size and the chamber structure of boiler power, and along the even circumferential distributing installation; The branch air duct air vent brick terminal with it will be installed on the height and position apart from burner hearth inner bottom 350mm～700mm.
The diameter of the air vent of described air vent brick internal placement is 5mm～20mm.
Described air inlet air channel flow area is greater than the flow area of main air duct.
The flow area of described main air duct is greater than the circulation area sum of all air vent bricks.
The beneficial effects of the utility model are, a kind of fixed grate boiler fume-eliminating energy-saving of the utility model combustion apparatus, the branch air duct air vent brick terminal with it is installed in apart from burner hearth inner bottom 350mm～700mm height and position, can better bring into play like this effect of Secondary Air, there is the air vent of 5mm～20mm the terminal air vent brick inside of installing of branch air duct, gas is through rushing at a high speed burner hearth behind the air vent, there are a lot of such high velocity airs burner hearth inside, fully stirred the flue gas of burner hearth inside, prolonged burning time, so that the oxygen of Secondary Air mixes with flue gas fully; And the air vent brick is installed relatively, but makes burning fume head-on collision burning, has strengthened combustion efficiency.The utility model structure decrease fixing, gas combustible loss, improved the thermal efficiency, fuel is fully burned, reduce small carbon granule in the flue gas, suppressed the generation of pernicious gas, reduced environmental pollution.The technical problems such as a kind of fixed grate boiler fume-eliminating energy-saving of the utility model combustion apparatus has solved that prior art exists that combustion rate is low, insufficient, the over-emitting black exhaust of burning, environmental pollution, the thermal efficiency are low.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is along the profile of A-A among Fig. 1;
Fig. 3 is air vent brick structure schematic diagram in the utility model structure;
Among the figure 1, Secondary Air air inlet 2, air vent brick 3, air inlet air channel 4, main air duct 5, branch air duct 6, air vent.
The specific embodiment
Shenfu Fig. 1 and Fig. 2, the utility model comprises: main air duct 4 and coupled Secondary Air air inlet 1, air inlet air channel 3, branch air duct 5, branch air duct 5 ends are equipped with air vent brick 2, the air vent 6 of air vent brick 2 inner somes; Air inlet air channel 3 flow areas are greater than the flow area of main air duct 4, make Secondary Air enter the wind speed of air inlet air channel 3 rear good reduction Secondary Airs, and the flow area of main air duct 4 is greater than the circulation area sum of all air vent bricks 2, and Secondary Air can be by main air duct 4 rear well-proportioned being assigned in the branch air duct 5 like this; The quantity of branch air duct is defined as 4～10 according to size and the chamber structure of boiler power, and along the even circumferential distributing installation, the branch air duct 5 air vent bricks 2 terminal with it will be installed on the height and position apart from burner hearth inner bottom 350mm～700mm, the air vent 6 of air vent brick 2 internal placement reasonable number as shown in Figure 3, the diameter of air vent 6 is 5mm～20mm, can improve like this wind speed of Secondary Air to certain 30m/s～70m/s, and secondary air separating is slit into a lot of strand tiny high velocity airs enters burner hearth and participate in combustion process.
Operation principle of the present utility model: the air from the outside enters air inlet air channel 3 by Secondary Air air inlet 1, because air inlet air channel 3 flow areas are greater than Secondary Air air inlet 1, the Speed Reduction of Secondary Air, flowing to afterwards behind the main air duct 4 gradually, shunting enters branch air duct 5, because very low and main air duct 4 flow areas of secondary wind wind speed are greater than all branch air duct 5 flow area sums, so each branch air duct 5 split ratios are more even.
When a lot of air vent 6 of air-flow by air vent brick 2 inside, because flow area diminishes suddenly, two person-times of wind are rushed in the burner hearth of fixed grate boiler with very high speed, but the so many abundant disturbance of high velocity air burning fume, increased the burning time of flue gas, and all there is the branch air duct 5 of distributing installation can make flue gas head-on collision burning along circumference, strengthened combustion efficiency, the oxygen of Secondary Air inside is fully mixed with flue gas, fuel is fully burned, has reduced carbon granule small in the flue gas, suppressed the generation of pernicious gas, reduce environmental pollution, improved generally the efficiency of combustion of fixed grate boiler at last.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (4)
1. fixed grate boiler fume-eliminating energy-saving combustion apparatus, mainly formed by main air duct and coupled Secondary Air air inlet, air inlet air channel, branch air duct, it is characterized in that: described branch air duct end is equipped with the air vent brick, and air vent brick internal placement has the air vent of some; The quantity of described branch air duct is 4～10, and along the even circumferential distributing installation; The branch air duct air vent brick terminal with it will be installed on the height and position apart from burner hearth inner bottom 350mm～700mm.
2. a kind of fixed grate boiler fume-eliminating energy-saving combustion apparatus according to claim 1, it is characterized in that: the diameter of the air vent of described air vent brick internal placement is 5mm～20mm.
3. a kind of fixed grate boiler fume-eliminating energy-saving combustion apparatus according to claim 1, it is characterized in that: described air inlet air channel flow area is greater than the flow area of main air duct.
4. according to claim 1 or 3 described a kind of fixed grate boiler fume-eliminating energy-saving combustion apparatus, it is characterized in that: the flow area of described main air duct is greater than the circulation area sum of all air vent bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220087987 CN202647835U (en) | 2012-02-29 | 2012-02-29 | Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220087987 CN202647835U (en) | 2012-02-29 | 2012-02-29 | Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202647835U true CN202647835U (en) | 2013-01-02 |
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ID=47416935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220087987 Expired - Fee Related CN202647835U (en) | 2012-02-29 | 2012-02-29 | Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202647835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588998A (en) * | 2012-02-29 | 2012-07-18 | 山东圣威新能源有限公司 | Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates |
-
2012
- 2012-02-29 CN CN 201220087987 patent/CN202647835U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588998A (en) * | 2012-02-29 | 2012-07-18 | 山东圣威新能源有限公司 | Smoke eliminating and energy saving combustion equipment of boiler with fixed fire grates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180229 |