CN206846720U - Burner induction tunnel and application have the injector of the induction tunnel - Google Patents
Burner induction tunnel and application have the injector of the induction tunnel Download PDFInfo
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- CN206846720U CN206846720U CN201720613180.XU CN201720613180U CN206846720U CN 206846720 U CN206846720 U CN 206846720U CN 201720613180 U CN201720613180 U CN 201720613180U CN 206846720 U CN206846720 U CN 206846720U
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- induction tunnel
- straight length
- main body
- air inlet
- body tube
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Abstract
A kind of burner induction tunnel, including main body tube (1), the main body tube (1) comprises at least the diffuser (12) for the contraction section (11) of one-level injection and for outlet, it is characterized in that the diffuser (12), which stretches out, is provided with straight length (13), the straight length (13) is provided with the second gas burning joint (2) entered for combustion gas, the outlet side of the second gas burning joint (2) is stretched into straight length (13) and is provided with secondary nozzle (3), the outgassing direction of the secondary nozzle (3) is parallel with the axial direction of main body tube (1), and, the air inlet of foregoing contraction section (11) is more than the air inlet of second gas burning joint (2).Disclosed herein as well is injector.Using two-stage injection, power caused by the combustion gas of two level injection is used to offset the back pressure in main body tube, and further increases the primary air mass ratio of induced-to-inducing air of induction tunnel front end in afterbody generation negative pressuren zone, and it is abundant to be advantageous to fuel gas buring.
Description
Technical field
A kind of induction tunnel applied to burner is the utility model is related to, belongs to gas combustion apparatus technical field.
Background technology
Gas-cooker is the kitchen tools commonly used in people's daily life, and the injector being arranged in gas-cooker is that gas-cooker is important
One part, its effect are：
1) combustion gas and air are mixed to form to certain pressure, overcome the drag losses of passage, fire hole exit obtains one
Fixed speed, ensure the stability of combustion flame.
2) the air of the combustion gas injection low energy of high-energy, and both are made uniformly to be mixed in injector.
3) a certain amount of combustion gas is conveyed, ensures the heat flow needed for burner.
Injector consists essentially of gas nozzle and induction tunnel, induction tunnel by the contraction section of front end, middle mixing section and
The diffuser composition of rear end, gas nozzle are set for the air inlet of contraction section.
Existing burner generally existing air fills into the defect of deficiency, therefore generally requires perforate on the burner and formed
Auxiliary air fills into, and otherwise fuel gas buring is just insufficient, the problem of energy waste being present and produce pollution.
To improve injection effect and the increase air amount of filling into, technical staff has made many effort on original structure, such as specially
Profit number is ZL201310122553.X Chinese invention patent《A kind of induction tunnel》(Authorization Notice No. CN103234201B).Again
Application reference number is 201611248146.3 Chinese invention patent application《A kind of injection tube structure》(application publication number is
CN106500100A), the patent is by the inlet port of induction tunnel main body and the helical structure set up of aditus laryngis, is carried with this
For filling into for primary air.
Utility model content
Technical problem to be solved in the utility model be for the above-mentioned state of the art and provide a kind of can improve in addition
The burner induction tunnel of injection effect.
Another technical problem to be solved in the utility model is to provide one kind once for the above-mentioned state of the art
The burner induction tunnel of air ejection coefficient lifting.
Technical scheme is used by the utility model solves above-mentioned technical problem：Burner induction tunnel, including main body
Pipe, the main body tube comprise at least the diffuser for the contraction section of one-level injection and for outlet, it is characterised in that the diffusion
Section, which stretches out, is provided with straight length, and the straight length is provided with the second gas burning joint entered for combustion gas, the second gas burning joint
Outlet side stretch into straight length and be provided with secondary nozzle, the outgassing direction of the secondary nozzle and the axial direction of main body tube are put down
OK.
Preferably, described straight length side wall offers mounting hole, connecting seat is formed around mounting hole, described two
Level gas joint include connecting portion and with the integrally formed extending portion of connecting portion, foregoing connecting portion is with connecting seat by being connected structure
Part assembling is integrated, and mounting hole is stretched into foregoing extending portion, and described secondary nozzle is then located at the front port of the extending portion.
Preferably, the axial direction of described extending portion vertical body pipe is on straight length.
One side of the described extending portion away from secondary nozzle has guide face, and the guide face is intersected by two smooth bevels
Form, and intersection connects for round-corner transition.The presence of guide face can reduce gas-flow resistance, ensure injection effect.
Further, the straight length is located at the rear end formation spacer portion of second gas burning joint.
Further, the main body tube is connected by contraction section and diffuser and formed, contraction section and diffuser the joint shape
Into aditus laryngis.
A kind of injector, including induction tunnel and the first order jet nozzle located at induction tunnel inlet end.
Preferably, the air inlet end face of the first order jet nozzle is more than the air inlet end face with secondary nozzle.
As optimal, the air inlet end face of the first order jet nozzle and the air inlet end face ratio of secondary nozzle are 5:2.
Compared with prior art, the utility model has the advantage of：Using two-stage injection, caused by the combustion gas of two level injection
Power is used to offsetting back pressure in main body tube, and produces negative pressuren zone in afterbody and further increase the primary air of induction tunnel front end and draw
Coefficient is penetrated, it is abundant to be advantageous to fuel gas buring.
Brief description of the drawings
Fig. 1 is example structure schematic diagram.
Fig. 2 is Fig. 1 exploded view.
Fig. 3 is another viewing angle constructions schematic diagram of two level injection joint in Fig. 2.
Fig. 4 is the use state sectional view of embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1, Figure 2 and Figure 4, the burner in the present embodiment includes main body tube 1 with induction tunnel and second gas burning connects
First 2, main body tube 1 is connected by contraction section 11 and diffuser 12 to be formed, and contraction section 11 and the joint of diffuser 12 form aditus laryngis 16.
Diffuser 12, which stretches out, is provided with straight length 13, and the straight length 13 is provided with the second gas burning entered for combustion gas and connect
First 2, specifically, the side wall of straight length 13 offers mounting hole 14, and connecting seat 15, second gas burning joint are formed around mounting hole 14
2 include connecting portion 21 and extending portion integrally formed with connecting portion 21 22, and connecting portion 21 passes through connecting elements 23 with connecting seat 15
Assembling is integrated, and mounting hole 14 is stretched into extending portion 22, and secondary nozzle 3 is located at the front port of the extending portion 22.Two level injection is connect
First 2 on the straight length 13, on diffuser 12 is based on considered below without being directly arranged in：The presence of straight length can be reduced
The influence of the gaseous mixture speed formed to one-level injection, so as to reduce the drag losses caused by two level injection.
The outgassing direction of secondary nozzle 3 is parallel with the axial direction of main body tube 1.Straight length 13 is located at second gas burning joint 2
Rear end formed spacer portion 131.The presence of spacer portion 131 can be reduced because of installation two level injection joint and to gas near diffuser
Flow velocity degree produces the risk hindered.
The axial direction of the vertical body pipe 1 of extending portion 22 is on straight length 13.With reference to shown in Fig. 3, extending portion 22 is remote
The one side of secondary nozzle 3 has guide face 221, and the guide face 221 is formed by two smooth bevels are intersecting, and intersection is
Round-corner transition connects.The presence of guide face 221 can reduce gas-flow resistance, ensure injection effect.
With reference to shown in Fig. 4, induction tunnel forms injector with first order jet nozzle 10, and the air inlet of contraction section 11 of main body tube 1 is provided with
First order jet nozzle 10, can be by air one-level injection, and the secondary nozzle in second gas burning joint 2 can form two level injection, this reality
It is 5 that the air inlet end face of first order jet nozzle 10 in example, which is applied, with the air inlet end face ratio of secondary nozzle 3:2.
Found in numerical simulation and experimentation, the back pressure of induction tunnel afterbody has to the injection effect of injector to pass weight
The influence wanted, such as：Mass ratio of induced-to-inducing air is up to 1.4 when back pressure is 0pa, from the angle for the purpose of reducing induction tunnel back pressure,
The application uses two-stage injection, the two level injection that less secondary nozzle is formed, and power caused by the combustion gas of two level injection is to fire
Gas is power, and negative pressure is produced in the afterbody of main body tube, and the power of combustion gas offsets the interior back pressure of main body tube with this, finally realizes big
Width increases the purpose of one-level mass ratio of induced-to-inducing air, and it is abundant to be advantageous to fuel gas buring.
Claims (9)
1. a kind of burner induction tunnel, including main body tube (1), the main body tube (1) comprises at least the contraction for one-level injection
Section (11) and the diffuser (12) for outlet, it is characterised in that the diffuser (12), which stretches out, is provided with straight length
(13), the straight length (13) is provided with the second gas burning joint (2) entered for combustion gas, the outlet side of the second gas burning joint (2)
Stretch into straight length (13) and be provided with secondary nozzle (3), the outgassing direction of the secondary nozzle (3) and the axial direction side of main body tube (1)
To parallel, also, the air inlet of foregoing contraction section (11) is more than the air inlet of second gas burning joint (2).
2. burner induction tunnel according to claim 1, it is characterised in that described straight length (13) side wall offers
Mounting hole (14), connecting seat (15) is formed around mounting hole (14), described second gas burning joint (2) includes connecting portion (21)
And pass through connecting elements with connecting seat (15) with connecting portion (21) integrally formed extending portion (22), foregoing connecting portion (21)
(23) assembling is integrated, and foregoing extending portion (22) stretch into mounting hole (14), and described secondary nozzle (3) is then located at the extending portion
(22) front port.
3. burner induction tunnel according to claim 2, it is characterised in that described extending portion (22) vertical body pipe
(1) axial direction is on straight length (13).
4. burner induction tunnel according to claim 2, it is characterised in that sprayed away from two level described extending portion (22)
The one side of mouth (3) has guide face (221), and the guide face (221) is formed by two smooth bevels are intersecting, and intersection is
Round-corner transition connects.
5. burner induction tunnel according to claim 1, it is characterised in that the straight length (13) is located at second gas burning
The rear end of joint (2) forms spacer portion (131).
6. burner induction tunnel according to claim 1, it is characterised in that the main body tube (1) by contraction section (11) and
Diffuser (12), which connects, to be formed, and the contraction section (11) and diffuser (12) joint form aditus laryngis (16).
7. a kind of application is had the right in requirement 1~6 any induction tunnel injector, including induction tunnel and enter located at induction tunnel
The first order jet nozzle (10) at gas end.
8. injector according to claim 7, it is characterised in that the air inlet end face of the first order jet nozzle (10) is more than and two
The air inlet end face of level nozzle (3).
9. injector according to claim 8, it is characterised in that sprayed with two level the air inlet end face of the first order jet nozzle (10)
The air inlet end face ratio of mouth (3) is 5:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613180.XU CN206846720U (en) | 2017-05-25 | 2017-05-25 | Burner induction tunnel and application have the injector of the induction tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613180.XU CN206846720U (en) | 2017-05-25 | 2017-05-25 | Burner induction tunnel and application have the injector of the induction tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206846720U true CN206846720U (en) | 2018-01-05 |
Family
ID=60797143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720613180.XU Active CN206846720U (en) | 2017-05-25 | 2017-05-25 | Burner induction tunnel and application have the injector of the induction tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206846720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975801A (en) * | 2017-05-25 | 2018-05-01 | 宁波方太厨具有限公司 | Burner ejector pipe and application have the injector of the ejector pipe |
-
2017
- 2017-05-25 CN CN201720613180.XU patent/CN206846720U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975801A (en) * | 2017-05-25 | 2018-05-01 | 宁波方太厨具有限公司 | Burner ejector pipe and application have the injector of the ejector pipe |
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