CN203068521U - Inductive air drafting type burner - Google Patents
Inductive air drafting type burner Download PDFInfo
- Publication number
- CN203068521U CN203068521U CN 201320028613 CN201320028613U CN203068521U CN 203068521 U CN203068521 U CN 203068521U CN 201320028613 CN201320028613 CN 201320028613 CN 201320028613 U CN201320028613 U CN 201320028613U CN 203068521 U CN203068521 U CN 203068521U
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- air
- cavity
- type burner
- injection
- combustion gas
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Abstract
The utility model discloses an inductive air drafting type burner which comprises an induction device used for inducting outside air, an air distribution cylinder connected with the induction device, a burning mixing chamber communicated with the air distribution cylinder, and a gas component communicated with the burning mixing chamber. The inductive air drafting type burner is characterized in that the induction device is provided with an induction quantity adjusting device; the induction quantity adjusting device comprises a mixing passage with one end in threaded connection with the air distribution cylinder, and a compressed air passage with one end in threaded connection with the other end of the mixing passage, wherein an end cover is arranged at the other end of the compressed air passage; and a compressed air connector leading inwards is welded on the outer wall of the compressed air passage; flow of the compressed air entering into the mixing passage can be controlled through the adjustment of threads screwing-in depth between the compressed air passage and the mixing passage, thereby controlling the induction quantity of the outside air. The inductive air drafting type burner has the advantages that the structure is simple, the operation is convenient; the consumption of the compressed air is low; the burning is efficient; the flame stability is good; and the NOX discharge is low.
Description
Technical field
The utility model relates to a kind of industrial burner that acts as a fuel with the contour calorific value fuel gas of natural gas, relates in particular to a kind of injection air draught type burner that acts as a fuel with the contour calorific value fuel gas of natural gas.
Background technology
At present, the burner that acts as a fuel with the contour calorific value fuel gas of natural gas is widely used in small-sized baking process field, and the at present domestic combustion systems that adopt conventional burners more and match in small-sized baking process field heat, these burners have following shortcoming usually: it is big to take up room, system is loaded down with trivial details, pre-heat effect is difficult for regulating, and the operating technology level requires high.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the problem that above-mentioned prior art exists, a kind of injection air draught type burner is provided, injection air draught type burner of the present utility model have take up room little, easy and simple to handle, the compressed air consumption is low, the characteristics that the discharging of NOx thing is low.
In order to realize above-mentioned purpose of the present utility model, provide following technical scheme:
A kind of injection air draught type burner comprises: be used for the induction apparatus of injection extraneous air, described induction apparatus has the injection volume adjusting device; The air distribution tube that connects described induction apparatus; The burning mixing chamber that is communicated with described air distribution tube; The combustion gas assembly that is communicated with described burning mixing chamber.
Preferably, described injection volume adjusting device comprises: the hybrid channel that the one end is threaded with described air distribution tube; The compressed air channel that the one end is threaded with the described hybrid channel other end, its other end is provided with end cap, and its outer wall is welded with the compressed air interface that leads in it; Wherein, by regulating being threaded into the degree of depth and can controlling the flow that compressed air enters the hybrid channel between compressed air channel and the hybrid channel, and then the injection volume of control extraneous air; Wherein, described end cap is provided with the grid that enters for the foreign material that stop extraneous air.
Preferably, also be connected with stop nut on the described hybrid channel, described stop nut closely contacts with an end of described compressed air channel.
Preferably, described combustion gas assembly comprises: the combustion gas interface passage is provided with restricting orifice in the described combustion gas interface passage; The combustion gas chamber of one end and described combustion gas interface channel connection, its other end is communicated with described burning mixing chamber.
Preferably, described restricting orifice is provided with an aperture much smaller than the through hole of combustion gas interface passage internal diameter.
Preferably, described burning mixing chamber comprises first cavity and second cavity that is connected, and the import of described first cavity is connected with described combustion gas chamber; The import of described second cavity is connected with described first cavity outlet.
Preferably, described first cavity has cylindrical first inner chamber; Described second cavity has a plurality of inner chambers of cascade, and offers a plurality of air intlets that lead to described a plurality of inner chambers respectively on the outer wall of second cavity; Wherein, the external diameter of described second cavity is greater than the external diameter of first cavity.
Preferably, described a plurality of inner chambers are two inner chambers, comprising: the reducing shape inner chamber that is communicated with first inner chamber of described first cavity; Cylindrical second inner chamber that is communicated with described reducing shape inner chamber.
Preferably, described a plurality of air intlets are three air intlets, comprising: the main air import of leading to reducing shape inner chamber entrance point; The secondary air import of leading to the cylindrical second inner chamber entrance point; Three grades of air intlets that lead to cylindrical second inner chamber middle part.
Preferably, described main air import, secondary air import and three grades of air intlets are respectively a plurality of through holes that the outer wall around second cavity evenly arranges at interval.
Preferably, the port of export of described second cavity is equipped with eddy flow tray, offers angled recess on the excircle of described eddy flow tray at interval uniformly.
The beneficial effects of the utility model embody in the following areas:
1) induction apparatus of the present utility model has the injection volume adjusting device, can be used for regulating outside air amount and air supply, reduces compressed-air actuated consumption.
2) the fuel gas inlet passage arranges throttle orifice, realizes the control of gas flow and pressure.
3) the burning mixing chamber adopts cascade inner-cavity structure and a plurality of air intlet structure, fully mixes with air and the space of smooth combustion for combustion gas provides, and efficiency of combustion improves, and flame rigidity is good, and the NOx discharging is low.
4) port of export of burning mixing chamber second cavity adopts eddy flow tray can reduce flame temperature, reaches the effect of regulating flame temperature.
5) burner volume of the present utility model is little, easy to operate, is applicable to the technology scene of flexible dismounting requirement.
Description of drawings
Fig. 1 is a kind of injection air draught type of the utility model burner structure schematic diagram;
Fig. 2 is injection air draught type burner structure cutaway view shown in Figure 1;
Fig. 3 is the utility model injection volume adjusting device structure cutaway view;
Fig. 4 is the utility model burning mixing chamber structural representation;
Fig. 5 is the structure cutaway view of burning mixing chamber shown in Figure 4.
Description of reference numerals: 1-induction apparatus; The 11-hybrid channel; The 12-compressed air channel; The 13-end cap; The 131-grid; The 14-stop nut; 15-compressed air interface; 2-air distribution tube; The 3-mixing chamber that burns; 31-first cavity; 311-first inner chamber; 32-second cavity; The import of 321-main air; The import of 322-secondary air; Three grades of air intlets of 323-; 324-reducing shape inner chamber; 325-second inner chamber; The 33-eddy flow tray; 4-combustion gas assembly; 41-combustion gas interface passage; The 411-restricting orifice; 42-combustion gas chamber.
The specific embodiment
As shown in Figure 1, injection air draught type burner of the present utility model comprises: induction apparatus 1, air distribution tube 2, burning mixing chamber 3, combustion gas assembly 4.Wherein, induction apparatus 1 is connected with air distribution tube 2, burning mixing chamber 3 is arranged on the inside of air distribution tube 2 and is communicated with it, and induction apparatus 1 is used for the injection extraneous air and enters the burning mixing chamber by the air distribution tube, extraneous air is mixed in the burning mixing chamber with combustion gas and participates in burning; Combustion gas assembly 4 is communicated with burning mixing chamber 3, is used for combustion gas sprayed in the mixing chamber that burns burning.
As shown in Figure 3, the other end of compressed air channel 12 end cap 13 that has been threaded, end cap is provided with grid 131, and when extraneous air was inner to induction apparatus by injection from end cap 13, the grid 131 that arranges on the end cap can effectively stop the foreign material in the extraneous air to enter; Be welded with the compressed air interface 15 that leads in it on the outer wall of compressed air channel 12, be used for compressed air is introduced in the compressed air channel.
The operation principle of injection volume adjusting device is as follows: as shown in Figure 3, be threaded into the degree of depth, the size that can regulate slit between compressed air channel and the hybrid channel by regulating between compressed air channel 12 and the hybrid channel 11; Compressed air enters in the compressed air channel from the compressed air interface, enter in the hybrid channel by the slit between compressed air channel and the hybrid channel, thereby compressed air enters the flow of hybrid channel and can control by the gap size of regulating between compressed air channel and the hybrid channel, and then the injection volume of control extraneous air.The utility model can reduce compressed-air actuated consumption because the injection extraneous air participates in burning.
As shown in Figure 2, combustion gas assembly 4 comprises: combustion gas interface passage 41 and combustion gas chamber 42, combustion gas chamber 42 1 ends and combustion gas interface channel connection, the other end is communicated with burning mixing chamber 3, combustion gas sprays into combustion gas chamber 42 in combustion gas interface passage 41, enter burning from the combustion gas chamber and mix with combustion air in the mixing chamber and burn.Especially, also be provided with restricting orifice 411 in the combustion gas interface passage of the present utility model, this restricting orifice is provided with an aperture much smaller than the through hole of combustion gas interface passage internal diameter, is used for stablizing flow and the pressure of combustion gas.
As shown in Figure 4, burning mixing chamber 3 comprises first cavity 31 and second cavity 32 that is connected, and as shown in Figure 2, the import of first cavity is connected with combustion gas chamber 42, the import of second cavity is connected with first cavity outlet, and the external diameter of second cavity is greater than the external diameter of first cavity.Particularly, as shown in Figure 5, first cavity has cylindrical first inner chamber 311; Second cavity has two inner chambers of cascade, and, as shown in Figure 4, offer a plurality of air intlets that lead to two inner chambers respectively on the outer wall of second cavity.
Concrete structure to the burning mixing chamber is described in detail by reference to the accompanying drawings, and as shown in Figure 5, two inner chambers of second cavity comprise: the reducing shape inner chamber 324 that is communicated with first inner chamber 311 of first cavity, cylindrical second inner chamber 325 that is communicated with reducing shape inner chamber.From the outer wall of second cavity, offer three air intlets altogether to its inner chamber, be respectively: main air import 321, secondary air import 322 and three grades of air intlets 323.Particularly, as shown in Figure 4, main air import 321 is the even a plurality of through holes that arrange in outer wall interval around second cavity, and its outer wall from second cavity is offered to the entrance point of reducing shape inner chamber 324; Secondary air import 322 is the even a plurality of through holes that arrange in outer wall interval around second cavity, and its outer wall from second cavity is offered to the entrance point of second inner chamber 325; Three grades of air intlets 323 are that its outer wall from second cavity is offered to second inner chamber, 325 middle parts around a plurality of through holes of the even setting in outer wall interval of second cavity.
In addition, shown in Fig. 4,5, the port of export of second cavity 32 also is equipped with eddy flow tray 33, offers angled recess on the excircle of eddy flow tray at interval uniformly.
Introduce the operation principle of the utility model burning mixing chamber in detail below in conjunction with accompanying drawing.
Extraneous air and compressed air mix the back and form combustion air, and wherein part process air distribution body enters into the burning mixing chamber from a plurality of air intlets of burning mixing chamber, and a part of combustion air is by the eddy flow tray ejection of burning mixing chamber outlet end.
Combustion air enters the burning mixing chamber from air intlet, and to participate in the process of burning as follows: when the flow of combustion air hour, combustion air only enters the burning mixing chamber from the main air import, and the mixed combustion of realization combustion gas in the zone of main air import correspondence; When the flow of combustion air is big, combustion air enters in the corresponding region of burning mixing chamber from main air import, secondary air import and three grades of air intlets respectively, combustion gas mixes with combustion air in each corresponding region and burns, adopt air classification to inject the flame internal-combustion like this, avoid the flame high-temperature region to concentrate, can realize lower NOx discharging; In addition, burning mixing chamber inner chamber adopts the cascade inner-cavity structure, the mixed airflow that makes combustion gas and combustion air is during by the cascade inner chamber, can in each inner chamber open area, form the flue gas recirculation effect, thereby the borderline oxygen concentration of dilution flame jet, both can realize the effect of the retention flame, and can significantly reduce the generation of NOx thing again.
When part combustion air passes through the eddy flow tray ejection of burning mixing chamber outlet end, both can strengthen mixed effect, also can change the temperature that burner finally produces flue gas, thereby realize technology baking requirement.
The concrete course of work of the present utility model is as follows:
In compressed air channel 12, compressed air is injected, connect power supply by ignitor, combustion gas is injected the ignition combustion device in combustion gas interface passage 41; Behind the ignition combustion device, regulate the load flow that combustion gas reaches the burner requirement, this moment, flame root and outer flame produced negative pressure, under the suction function that produces, extraneous air is participated in burning by the induction apparatus injection to the burning mixing chamber, extraneous air and compressed air mix back formation combustion air and enter the air distribution body in the hybrid channel, wherein a part of combustion air enters from the air intlet of burning mixing chamber by the air distribution body that the burning mixing chamber is inner to be mixed with flame, and a part of combustion air sprays by the eddy flow tray of the mixing chamber outlet end that burns.
Preferably, the utility model can be regulated extraneous air and the compressed-air actuated flow that enters into the burning mixing chamber by regulating the injection volume adjusting device, extraneous air and compressed air provide required oxygen for burner combustion, participate in burning by extraneous air, can reduce compressed-air actuated consumption.
The utility model burning mixing chamber adopts cascade inner-cavity structure and a plurality of air intlet structure, fully mixes with air and the space of smooth combustion for combustion gas provides, and efficiency of combustion improves, and flame rigidity is good, and the NOx discharging is low.
The design of the utility model eddy flow tray can reduce flame temperature, reaches the effect of regulating flame temperature.
Burner volume of the present utility model is little, and convenient disassembly is applicable to the technology scene of flexible dismounting requirement.
Although above-mentioned the utility model is described in detail; but the utility model is not limited thereto; those skilled in the art can make amendment according to principle of the present utility model; therefore, all various modifications of carrying out according to principle of the present utility model all should be understood to fall into protection domain of the present utility model.
Claims (10)
1. injection air draught type burner comprises:
Be used for the induction apparatus (1) of injection extraneous air;
The air distribution tube (2) that connects described induction apparatus (1);
The burning mixing chamber (3) that is communicated with described air distribution tube (2);
The combustion gas assembly (4) that is communicated with described burning mixing chamber (3);
It is characterized in that described induction apparatus (1) has the injection volume adjusting device.
2. injection air draught type burner as claimed in claim 1 is characterized in that, described injection volume adjusting device comprises:
The hybrid channel (11) that the one end is threaded with described air distribution tube (2);
The compressed air channel (12) that the one end is threaded with described hybrid channel (11) other end, its other end is provided with end cap (13), and its outer wall is welded with the compressed air interface (15) that leads in it;
Wherein, by regulating being threaded into the degree of depth and can controlling the flow that compressed air enters the hybrid channel between compressed air channel (12) and hybrid channel (11), and then control the injection volume of extraneous air;
Wherein, described end cap is provided with the grid (131) that enters for the foreign material that stop extraneous air.
3. injection air draught type burner as claimed in claim 2 is characterized in that, also is connected with stop nut (14) on described hybrid channel (11), and described stop nut closely contacts with an end of described compressed air channel (12).
4. injection air draught type burner as claimed in claim 3 is characterized in that, described combustion gas assembly (4) comprising:
Combustion gas interface passage (41) is provided with restricting orifice (411) in the described combustion gas interface passage;
The combustion gas chamber (42) of one end and described combustion gas interface channel connection, its other end is communicated with described burning mixing chamber (3).
5. injection air draught type burner as claimed in claim 4 is characterized in that, described restricting orifice is provided with an aperture much smaller than the through hole of combustion gas interface passage internal diameter.
6. injection air draught type burner as claimed in claim 5 is characterized in that, described burning mixing chamber (3) comprises first cavity (31) and second cavity (32) that is connected, and the import of described first cavity is connected with described combustion gas chamber (42); The import of described second cavity is connected with described first cavity outlet.
7. injection air draught type burner as claimed in claim 6 is characterized in that, described first cavity has cylindrical first inner chamber; Described second cavity has a plurality of inner chambers of cascade, and offers a plurality of air intlets that lead to described a plurality of inner chambers respectively on the outer wall of second cavity; Wherein, the external diameter of described second cavity is greater than the external diameter of first cavity.
8. injection air draught type burner as claimed in claim 7 is characterized in that,
Described a plurality of inner chamber is two inner chambers, comprising:
The reducing shape inner chamber that is communicated with first inner chamber of described first cavity;
Cylindrical second inner chamber that is communicated with described reducing shape inner chamber;
Described a plurality of air intlet is three air intlets, comprising:
The main air import of leading to reducing shape inner chamber entrance point;
The secondary air import of leading to the cylindrical second inner chamber entrance point;
Three grades of air intlets that lead to cylindrical second inner chamber middle part.
9. injection air draught type burner as claimed in claim 8 is characterized in that, described main air import, secondary air import and three grades of air intlets are respectively a plurality of through holes that the outer wall around second cavity evenly arranges at interval.
10. injection air draught type burner as claimed in claim 9 is characterized in that, the port of export of described second cavity is equipped with eddy flow tray (33), offers angled recess on the excircle of described eddy flow tray at interval uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028613 CN203068521U (en) | 2013-01-18 | 2013-01-18 | Inductive air drafting type burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028613 CN203068521U (en) | 2013-01-18 | 2013-01-18 | Inductive air drafting type burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068521U true CN203068521U (en) | 2013-07-17 |
Family
ID=48767300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028613 Expired - Fee Related CN203068521U (en) | 2013-01-18 | 2013-01-18 | Inductive air drafting type burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068521U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832923A (en) * | 2015-05-29 | 2015-08-12 | 潘汉祥 | Furnace nozzle combustion device |
| CN105972596A (en) * | 2016-07-06 | 2016-09-28 | 王鸿川 | Low-nitrogen burner |
| CN107750319A (en) * | 2015-06-16 | 2018-03-02 | 霍尼韦尔国际公司 | The burner of jet pump with combustion air driving |
| CN108302536A (en) * | 2018-01-05 | 2018-07-20 | 考克兰（江苏）热能设备有限公司 | Low NO |
| CN109000370A (en) * | 2018-09-11 | 2018-12-14 | 广东万家乐燃气具有限公司 | A kind of air stage feeding system and gas heater |
| CN109099424A (en) * | 2018-09-04 | 2018-12-28 | 辽宁工程技术大学 | A kind of device with injection, combustion function |
| CN111351057A (en) * | 2018-12-21 | 2020-06-30 | 中国石油天然气股份有限公司 | Injection type burning furnace |
| JP7083211B1 (en) | 2022-02-04 | 2022-06-10 | 株式会社カシワテック | Combustion device and combustion system |
-
2013
- 2013-01-18 CN CN 201320028613 patent/CN203068521U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832923A (en) * | 2015-05-29 | 2015-08-12 | 潘汉祥 | Furnace nozzle combustion device |
| CN107750319A (en) * | 2015-06-16 | 2018-03-02 | 霍尼韦尔国际公司 | The burner of jet pump with combustion air driving |
| CN105972596A (en) * | 2016-07-06 | 2016-09-28 | 王鸿川 | Low-nitrogen burner |
| CN105972596B (en) * | 2016-07-06 | 2019-03-08 | 王鸿川 | Low NO |
| CN108302536A (en) * | 2018-01-05 | 2018-07-20 | 考克兰（江苏）热能设备有限公司 | Low NO |
| CN108302536B (en) * | 2018-01-05 | 2018-12-28 | 考克兰（江苏）热能设备有限公司 | Low NO |
| CN109099424A (en) * | 2018-09-04 | 2018-12-28 | 辽宁工程技术大学 | A kind of device with injection, combustion function |
| CN109000370A (en) * | 2018-09-11 | 2018-12-14 | 广东万家乐燃气具有限公司 | A kind of air stage feeding system and gas heater |
| CN111351057A (en) * | 2018-12-21 | 2020-06-30 | 中国石油天然气股份有限公司 | Injection type burning furnace |
| JP7083211B1 (en) | 2022-02-04 | 2022-06-10 | 株式会社カシワテック | Combustion device and combustion system |
| JP2023114324A (en) * | 2022-02-04 | 2023-08-17 | 株式会社カシワグループ | Combustion device and combustion system |
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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: 20130717 Termination date: 20220118 |