CN209180930U - Radiant tube igniter burner structure - Google Patents
Radiant tube igniter burner structure Download PDFInfo
- Publication number
- CN209180930U CN209180930U CN201821853612.5U CN201821853612U CN209180930U CN 209180930 U CN209180930 U CN 209180930U CN 201821853612 U CN201821853612 U CN 201821853612U CN 209180930 U CN209180930 U CN 209180930U
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- air
- spray head
- gas
- combustion
- outer tube
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Abstract
The utility model relates to a kind of radiant tube igniter burner structures, it includes combustion chamber, air outer tube, combustion gas inner tube, gas spray head, air nozzle and ignitor；Air outer tube front end connects air nozzle, and air outer tube and air nozzle are connect with combustion chamber, and combustion gas inner tube is set in air outer tube and its front end connects gas spray head, is equipped with ignitor in gas spray head and ignitor front is stretched out and is located in combustion chamber；The front end of gas spray head is gas outlet, and the front of gas spray head is circumferentially with air inflow aperture, and air nozzle front end face is equipped with a circle air-outlet aperture；There is combustion-supporting air flow to enter channel between air outer tube and combustion gas inner tube, which is connected to the air-outlet aperture on the air inflow aperture and air nozzle in gas spray head.The utility model has many advantages, such as that flare up fire is strong, burner head and ignitor long service life.
Description
Technical field
The utility model relates to a kind of radiant tube igniter burner structures.
Background technique
Radiant tube heating is widely used in protective atmosphere heat-treatment furnace, and burner is set as the key that radiant tube heats
It is standby, the effect of radiant tube heating is directly affected.Radiation pipe burner tip is made of main burner and igniter burner.Igniter burner is
The burning of stablizing of main burner provides stable heat source, while peace of the flare up fire of igniter burner as main burner and igniter burner
Full guard, once flare up fire is lost to ensure close main burner and igniter burner safely.The installation of radiant tube igniter burner
In in radiant tube narrow space, igniting and flame monitoring are generally carried out using ion bar.Current radiation pipe igniter burner is universal
Have the following problems: 1. flare up fire intensity are low, and flare up fire, which is easily lost, causes burner flame-out；2. burner head and ignitor
Head is easy scaling loss, and the service life is not grown.
Summary of the invention
The utility model is intended to overcome the deficiencies of existing technologies, and provides a kind of radiant tube igniter burner structure, has flame
The advantages that signal is strong, burner head and ignitor long service life.
In order to solve the above-mentioned technical problem, the utility model is realized in this way:
A kind of radiant tube igniter burner structure, it is characterised in that: it includes combustion chamber, air outer tube, combustion gas inner tube, combustion gas
Spray head, air nozzle and ignitor；Air outer tube front end connects air nozzle, air outer tube and air nozzle and burning
Room connection, the combustion gas inner tube is set in air outer tube and its front end connects gas spray head, is equipped with ignitor in gas spray head
And ignitor front is stretched out and is located in combustion chamber；
The front end of the gas spray head is gas outlet, and the front of gas spray head is circumferentially with air inflow aperture, the sky
Gas nozzle front end face is equipped with a circle air-outlet aperture；There is combustion-supporting air flow to enter channel between the air outer tube and combustion gas inner tube,
The flow channel is connected to the air-outlet aperture on the air inflow aperture and air nozzle in gas spray head.
The radiant tube igniter burner structure, it is characterised in that: between the air outer tube, air nozzle and combustion chamber
It is connected through a screw thread.
The radiant tube igniter burner structure, it is characterised in that: the combustion gas inner tube and gas spray head are connected by screw thread
It connects.
The radiant tube igniter burner structure, it is characterised in that: the flow rates that the air passes through air nozzle are
10-30m/s, combustion gas are 1-5m/s by the flow rates that gas spray head sprays.
It is pre-mixed the beneficial effects of the utility model are: realizing portion of air with combustion gas, remaining air and combustion
Gas spreads mixing in the combustion chamber, and portion of air and combustion gas, which are pre-mixed, to be conducive to improve flame combustion intensity, enhances flame
Ion signal value avoids flare up fire loss from leading to burner flame-out, while in turn avoiding whole air and being pre-mixed with combustion gas, fire
The problem of flame burning too acutely causes chamber temperature high, frequently burns out combustion chamber and ignitor head.
Detailed description of the invention
The utility model is described in further detail with embodiment with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of gas spray head.
Fig. 3 is the structural schematic diagram of air nozzle.
Specific embodiment
A kind of radiant tube igniter burner structure as shown in Figure 1:, it includes combustion chamber 1, air outer tube 2, combustion gas inner tube 3, combustion
Gas nozzle 4, air nozzle 5 and ignitor 6；Air outer tube front end connects air nozzle, air outer tube and air nozzle
It is connect with combustion chamber, the combustion gas inner tube is set in air outer tube and its front end connects gas spray head, is equipped with point in gas spray head
Thermoelectricity pole and ignitor front is stretched out and is located in combustion chamber；
As shown in Figure 2,3: the front end of the gas spray head is gas outlet 7, and the front of gas spray head is circumferentially with air
Inflow entrance 8 enters premixing inside gas spray head convenient for partial air；The air nozzle front end face is equipped with a circle air outlet slit
Hole 9；There is combustion-supporting air flow to enter channel 10 between the air outer tube and combustion gas inner tube, the sky on the flow channel and gas spray head
Air-outlet aperture connection on air flow inlet and air nozzle.
Further, it is connected through a screw thread between the air outer tube, air nozzle and combustion chamber.
Further, the combustion gas inner tube is connected through a screw thread with gas spray head.
Further, the flow rates that the air passes through air nozzle are 10-30m/s, and combustion gas is sprayed by gas spray head
Flow rates out are 1-5m/s.The ratio between air velocity and gas speed are 2 or more.To ensure that partial air can enter coal
Gas nozzle realizes premix.
Combustion gas flows into the gas outlet 7 through gas spray head from the channel between combustion gas inner tube and ignitor and sprays, combustion-supporting sky
Flow channel 10 of the gas between air outer tube and combustion gas inner tube flows into, air inflow aperture of the portion of air through gas spray head circumferential direction
8 enter gas-jet and combustion gas realization premixing, and surplus air is sprayed through the air-outlet aperture 9 on air nozzle.It is sprayed from air
The air that head sprays and the mixed once gas diffusion combustion in the combustion chamber sprayed from gas-jet.Ignitor have both igniting and
Flame ion signal detection dual function.
The utility model realizes portion of air and is pre-mixed with combustion gas, and remaining air expands in the combustion chamber with combustion gas
Mixing is dissipated, portion of air and combustion gas, which are pre-mixed, to be conducive to improve flame combustion intensity, is enhanced flame ion signal value, is avoided
It is flame-out that flare up fire loss leads to burner, while in turn avoiding whole air and being pre-mixed with combustion gas, and flame combustion is too violent
The problem of causing chamber temperature high, frequently burning out combustion chamber and ignitor head.
Claims (4)
1. a kind of radiant tube igniter burner structure, it is characterised in that: it includes combustion chamber, air outer tube, combustion gas inner tube, gas injection
Head, air nozzle and ignitor；Air outer tube front end connects air nozzle, air outer tube and air nozzle and combustion chamber
Connection, the combustion gas inner tube is set in air outer tube and its front end connects gas spray head, be equipped in gas spray head ignitor and
Ignitor front is stretched out and is located in combustion chamber；
The front end of the gas spray head is gas outlet, and the front of gas spray head is circumferentially with air inflow aperture, the air spray
Head front end face is equipped with a circle air-outlet aperture；There is combustion-supporting air flow to enter channel between the air outer tube and combustion gas inner tube, the stream
Enter channel to be connected to the air-outlet aperture on the air inflow aperture and air nozzle in gas spray head.
2. radiant tube igniter burner structure according to claim 1, it is characterised in that: the air outer tube, air nozzle
It is connected through a screw thread between combustion chamber.
3. radiant tube igniter burner structure according to claim 2, it is characterised in that: the combustion gas inner tube and gas spray head
It is connected through a screw thread.
4. radiant tube igniter burner structure according to claim 3, it is characterised in that: the air passes through air nozzle
Flow rates are 10-30m/s, and combustion gas is 1-5m/s by the flow rates that gas spray head sprays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821853612.5U CN209180930U (en) | 2018-11-12 | 2018-11-12 | Radiant tube igniter burner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821853612.5U CN209180930U (en) | 2018-11-12 | 2018-11-12 | Radiant tube igniter burner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209180930U true CN209180930U (en) | 2019-07-30 |
Family
ID=67364016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821853612.5U Active CN209180930U (en) | 2018-11-12 | 2018-11-12 | Radiant tube igniter burner structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209180930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543085A (en) * | 2022-02-21 | 2022-05-27 | 四川铭能科技开发有限公司 | Burner nozzle adaptable to various gas fuels |
-
2018
- 2018-11-12 CN CN201821853612.5U patent/CN209180930U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543085A (en) * | 2022-02-21 | 2022-05-27 | 四川铭能科技开发有限公司 | Burner nozzle adaptable to various gas fuels |
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