CN208535983U - Reduce the Venturi tube and burner of noise - Google Patents
Reduce the Venturi tube and burner of noise Download PDFInfo
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- CN208535983U CN208535983U CN201820659946.2U CN201820659946U CN208535983U CN 208535983 U CN208535983 U CN 208535983U CN 201820659946 U CN201820659946 U CN 201820659946U CN 208535983 U CN208535983 U CN 208535983U
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- venturi tube
- guide ring
- flow region
- contraction flow
- noise
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Abstract
The utility model proposes a kind of Venturi tube and burner for reducing noise, the burner is made of the Venturi tube and gas nozzle, and the gas nozzle is used to spray combustion gas, and injection air simultaneously towards the Venturi tube.The Venturi tube has opposite Venturi tube first end and Venturi tube second end, the Venturi tube first end is equipped with contraction flow region, the contraction flow region has an air inlet entered for injection air, the contraction flow region is equipped with for shunting to reduce the guide ring of air pertormance noise, the guide ring connect with the contraction flow region and is located on the inside of the contraction flow region, the guide ring has the outer surface towards the contraction flow region and the inner surface far from the contraction flow region, the first injection channel is formed between the outer surface of the guide ring and the contraction flow region, and the inner surface side of the guide ring forms the second injection channel.
Description
Technical field
The present invention relates to a kind of injection type burner, in particular to a kind of Venturi tube and burner for reducing noise.
Background technique
Existing to be mainly made of Venturi tube and gas nozzle using burner, gas nozzle effect is mainly high-pressure injection
Combustion gas and injection low-pressure air fluid, and energy exchange is carried out in Venturi tube, it carries out substance ginseng and mixes, to reach gaseous mixture
Body clean-burning purpose at Venturi exit, but eject by nozzle ultrahigh speed air ejection while can generate height
The noise of frequency, for environment-friendly function, control noise seems most important within an acceptable range.
Fence predominantly is built in outermost to the mode of ground flare noise reduction now, but the method takes up a large area,
Land area is required too high；It is big to build fence cost；And application range is small.
Summary of the invention
In view of this, the present invention generates noise noise source when providing a kind of pair of burner injection carries out the venturi of noise reduction
Pipe.
The present invention generates noise noise source when providing a kind of pair of burner injection carries out the burner of noise reduction.
On the one hand, the present invention proposes that a kind of Venturi tube for reducing noise, the Venturi tube have opposite venturi
Pipe first end and Venturi tube second end, the Venturi tube first end are equipped with contraction flow region, and the contraction flow region is with one for injection
The air inlet that air enters, the contraction flow region are equipped with for shunting to reduce the guide ring of air pertormance noise, the water conservancy diversion
Ring connect with the contraction flow region and is located on the inside of the contraction flow region, and the guide ring has the outer surface towards the contraction flow region
With the inner surface far from the contraction flow region, the first injection channel is formed between the outer surface of the guide ring and the contraction flow region,
And the inner surface side of the guide ring forms the second injection channel.
In one embodiment, supporting element is connected between the guide ring and the contraction flow region, the guide ring passes through institute
State the inner wall that supports support is fixed on the contraction flow region.
In one embodiment, the supporting element includes several floors, the centerline parallel of the floor and the guide ring
Setting.
In one embodiment, the supporting element includes several floors, and the floor favours the center line setting of guide ring.
In one embodiment, the contraction flow region is taper, and the cone angle of the contraction flow region is 10 °~30 °.
In one embodiment, the guide ring is with a thickness of 0.1mm~10mm.
In one embodiment, the guide ring is made of sound-absorbing porous material.
On the other hand, the present invention proposes a kind of burner, including Venturi tube and gas nozzle, and the Venturi tube has
Opposite Venturi tube first end and Venturi tube second end, the Venturi tube first end are equipped with contraction flow region, the contraction flow region
With an air inlet, the gas nozzle is set to the air inlet to spray combustion gas and simultaneously injection towards the Venturi tube
Air, the air inlet of the Venturi tube are equipped with contraction flow region, and the combustion gas and injection air enter mixing in the Venturi tube,
The Venturi tube includes guide ring, and the guide ring is connect with Venturi tube and the center line of the guide ring and the combustion
The center line of gas jets is overlapped, and the first injection channel is formed between the guide ring and the tube wall of the Venturi tube, described to lead
The second injection channel is formed between stream ring and the outer wall of the gas nozzle.
In one embodiment, the guide ring is made of sound-absorbing porous material.
In one embodiment, supporting element is connected between the guide ring and the contraction flow region, the supporting element favours
The center line of guide ring is arranged, and the guide ring is fixed on the inner wall of the contraction flow region by the supports support.
In conclusion the present invention provides a kind of Venturi tube and burner for reducing noise, Venturi tube is equipped with for dividing
It flows to reduce the guide ring of the air pertormance noise generated when injection air, burner includes the Venturi tube and gas injection
Mouth.The air of injection is layered by injection air while gas nozzle sprays combustion gas towards Venturi tube, guide ring, thus
The air pertormance noise generated due to injection air is reduced, achievees the purpose that weaken noise at noise source.
Detailed description of the invention
Fig. 1 is the side view of the burner of one embodiment of the present invention.
Fig. 2 is cross-sectional view of the burner shown in Fig. 1 along the direction A-A.
Fig. 3 is the top view of burner shown in Fig. 1.
Fig. 4 is the air velocity illustraton of model that burner shown in Fig. 1 does not increase guide ring.
Fig. 5 is the air velocity illustraton of model that burner shown in Fig. 1 increases guide ring.
Fig. 6 is the air velocity contrast model figure of Fig. 4 and Fig. 5.
Fig. 7 is the top view of the burner of another embodiment of the present invention.
Fig. 8 is the bottom view of burner shown in Fig. 7.
Fig. 9 is cross-sectional view of the burner shown in Fig. 8 along the direction B-B.
Specific embodiment
Before describing the embodiments in more detail, it should be understood that the present invention is not limited to institutes hereafter or in attached drawing in the application
The detailed construction or arrangement of elements of description.The embodiment that the present invention can realize for other way.Furthermore, it is to be understood that this paper institute
The wording and term used is solely for description purposes, should not be interpreted in a limited way."include", "comprise" used herein,
The similar wording such as " having " is meant comprising items listed thereafter, its equivalent and other additional things.In particular, when description
When " certain element ", it also may include multiple that the present invention, which does not limit the quantity of the element as one,.
As shown in Figure 1 to Figure 3, burner includes above-mentioned Venturi tube 10 and gas nozzle 20.Venturi tube 10 has phase
Anti- Venturi tube first end 11 and Venturi tube second end 12, Venturi tube first end 11 are equipped with contraction flow region 13, contraction flow region 13
With an air inlet 131, Venturi tube second end 12 is equipped with enlarged portion 14.Contraction flow region 13 is by Venturi tube first end 11 towards text
Venturi second end 12 to contract until connect with enlarged portion 14, enlarged portion 14 by with 13 joint of contraction flow region towards venturi
Pipe second end 12 expands outwardly, so that contraction flow region 13 and enlarged portion 14 are respectively formed taper, contraction flow region 13 and 14 joint of enlarged portion
Form the smallest neck 16 of 10 diameter of Venturi tube.
The air inlet 131 of Venturi tube 10 is arranged in towards the injection combustion gas of Venturi tube 10 and simultaneously in gas nozzle 20
Injection air enters in Venturi tube 10.
The contraction flow region 13 of Venturi tube 10 is equipped with for shunting to reduce the guide ring 30 of air pertormance noise, guide ring
Supporting element 31 is connected between 30 and contraction flow region 13, guide ring 30 supports the inner wall for being fixed on contraction flow region 13 by supporting element 31,
And it is located in 13 inside of contraction flow region.Guide ring 30 is in taper similar with contraction flow region 13, and the cone angle of the two is 10 °~30 °, more
Excellently, it is 15 ° that guide ring 30, which is in the cone angle of contraction flow region 13,.Guide ring 30 and Venturi tube 10 are connected in contraction flow region 13, and
And the center line x1 of guide ring 30 is overlapped with the center line x2 of gas nozzle 20.Guide ring 30 has outer towards contraction flow region 13
The inner surface 35 on surface 33 and separate contraction flow region 13, it is logical to form the first injection between the outer surface 33 and contraction flow region 13 of guide ring 30
Road 37, and the second injection channel 38 is formed between 35 side of inner surface of guide ring 30 and the outer wall of gas nozzle 20.Injection is empty
Gas enters Venturi tube 10, combustion gas and sky through the first injection channel 37 and the second injection channel 38 respectively after being layered by guide ring 30
Gas is mixed to form gas to be combusted in Venturi tube 10.
Fig. 4 show the air velocity illustraton of model for not increasing guide ring 30, and Fig. 5 show the air speed for increasing guide ring 30
Illustraton of model is spent, when gas enters Venturi tube 10 by Venturi tube first end 11, air-flow is layered by guide ring 30, and one
Point Venturi tube 10 is entered by the first injection channel 37, another part enters Venturi tube 10 by the second injection channel 38, will be by
The combustion gas that gas nozzle 20 sprays at a high speed forms the velocity gradient distribution slowed down.The air velocity that Fig. 6 is Fig. 4 and Fig. 5 compares mould
Type figure, as seen from Figure 6, increasing guide ring 30 can reduce the speed of high-speed flow, so that VELOCITY DISTRIBUTION is relatively uniform,
Mean that the disturbance between air-flow reduces, to reduce air pertormance noise.
Supporting element 31 includes several floors, and in the present embodiment, the quantity of floor is 4, it should be appreciated that this only makees
For one embodiment of the present invention, the present invention is not construed as limiting the quantity of floor.
The center line x1 of floor and guide ring 30 is arranged in parallel, but this is only used as a kind of setting of supporting element 31 of the invention
Mode, Fig. 7 to Fig. 9 are another embodiment of the present invention, and supporting element 31 is floor, and floor favours the center line x1 of guide ring 30
Setting, in the present embodiment, the outer surface 311 of floor relative to the tilt angle of the center line x1 of guide ring 30 be greater than 0 ° and
Less than 90 °, more preferably, the outer surface 311 of floor is 30 °~45 ° relative to the tilt angle of the center line x1 of guide ring 30.Rib
Plate is obliquely installed, and cyclone is formed when admitting air into, and is sufficiently mixed conducive to combustion gas and air.
In order to preferably reduce noise, guide ring 30 is made of sound-absorbing porous material, guide ring with a thickness of 0.1mm~
10mm, so that noise reduction effect is more preferably obvious.
In conclusion the present invention provides a kind of Venturi tube and burner for reducing noise, Venturi tube is equipped with for dividing
It flows to reduce the guide ring of the air pertormance noise generated when injection air, burner includes the Venturi tube and gas injection
Mouth.The air of injection is layered by injection air while gas nozzle sprays combustion gas towards Venturi tube, guide ring, thus
The air pertormance noise generated due to injection air is reduced, achievees the purpose that weaken noise at noise source.
Concepts described herein may be embodied to other forms without departing from its spirit and characteristics.It is disclosed
The specific embodiments are to be considered as illustrative and not restrictive.Therefore, the scope of the present invention be by the attached claims,
Instead of making decisions based on these previous descriptions.Any change within the literal meaning and equivalent scope of the claims is all
It should belong to these the scope of the claims.
Claims (10)
1. a kind of Venturi tube for reducing noise, the Venturi tube have opposite Venturi tube first end and Venturi tube the
Two ends, the Venturi tube first end are equipped with contraction flow region, and the contraction flow region has an air inlet entered for injection air, special
Sign is: the contraction flow region is equipped with for shunting to reduce the guide ring of air pertormance noise, the guide ring and the receipts
Contracting portion connects and is located on the inside of the contraction flow region, and the guide ring is with the outer surface towards the contraction flow region and far from described
The inner surface of contraction flow region, forms the first injection channel between the outer surface of the guide ring and the contraction flow region, and the water conservancy diversion
The inner surface side of ring forms the second injection channel.
2. reducing the Venturi tube of noise as described in claim 1, it is characterised in that: the guide ring and the contraction flow region it
Between be connected with supporting element, the guide ring is fixed on the inner wall of the contraction flow region by the supports support.
3. reducing the Venturi tube of noise as claimed in claim 2, it is characterised in that: the supporting element includes several floors,
The centerline parallel of the floor and the guide ring is arranged.
4. reducing the Venturi tube of noise as claimed in claim 2, it is characterised in that: the supporting element includes several floors,
The floor favours the center line setting of guide ring.
5. reducing the Venturi tube of noise as described in claim 1, it is characterised in that: the contraction flow region is taper, the receipts
The cone angle in contracting portion is 10 °~30 °.
6. as described in claim 1 reduce noise Venturi tube, it is characterised in that: the guide ring with a thickness of 0.1mm~
10mm。
7. reducing the Venturi tube of noise as described in claim 1, it is characterised in that: the guide ring is by sound-absorbing porous material
It is made.
8. a kind of burner, including Venturi tube and gas nozzle, the Venturi tube has opposite Venturi tube first end
With Venturi tube second end, the Venturi tube first end is equipped with contraction flow region, and the contraction flow region has an air inlet, the combustion gas
Nozzle be set to the air inlet with towards the Venturi tube injection combustion gas and simultaneously injection air, the Venturi tube into
Port is equipped with contraction flow region, and the combustion gas and injection air enter mixing in the Venturi tube, it is characterised in that: the venturi
Pipe includes guide ring, and the guide ring connect with Venturi tube and in the center line of the guide ring and the gas nozzle
Heart line is overlapped, and forms the first injection channel between the guide ring and the tube wall of the Venturi tube, the guide ring with it is described
The second injection channel is formed between the outer wall of gas nozzle.
9. burner as claimed in claim 8, it is characterised in that: the guide ring is made of sound-absorbing porous material.
10. burner as claimed in claim 8, it is characterised in that: be connected with branch between the guide ring and the contraction flow region
Support member, the supporting element favour the center line setting of guide ring, and the guide ring is fixed on institute by the supports support
State the inner wall of contraction flow region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820659946.2U CN208535983U (en) | 2018-05-04 | 2018-05-04 | Reduce the Venturi tube and burner of noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820659946.2U CN208535983U (en) | 2018-05-04 | 2018-05-04 | Reduce the Venturi tube and burner of noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208535983U true CN208535983U (en) | 2019-02-22 |
Family
ID=65393226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820659946.2U Active CN208535983U (en) | 2018-05-04 | 2018-05-04 | Reduce the Venturi tube and burner of noise |
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| CN (1) | CN208535983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518682A (en) * | 2018-05-04 | 2018-09-11 | 中国石油集团川庆钻探工程技术有限公司钻采工程技术研究院 | Reduce the Venturi tube and burner of noise |
-
2018
- 2018-05-04 CN CN201820659946.2U patent/CN208535983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518682A (en) * | 2018-05-04 | 2018-09-11 | 中国石油集团川庆钻探工程技术有限公司钻采工程技术研究院 | Reduce the Venturi tube and burner of noise |
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