CN208186339U - Venturi burner with decrease of noise functions - Google Patents
Venturi burner with decrease of noise functions Download PDFInfo
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- CN208186339U CN208186339U CN201820659975.9U CN201820659975U CN208186339U CN 208186339 U CN208186339 U CN 208186339U CN 201820659975 U CN201820659975 U CN 201820659975U CN 208186339 U CN208186339 U CN 208186339U
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Abstract
The utility model provides a kind of venturi burner with decrease of noise functions, including nozzle and Venturi tube, the Venturi tube includes the first contraction flow region, neck and the enlarged portion of integrally connected, hardened structure is equipped between the Venturi tube and the nozzle, the hardened structure includes outside plate and an at least inner panel, the outside plate is connected between the bottom and the nozzle of first contraction flow region, each inner panel extends from the outside plate inner wall and forms the second contraction flow region, the outside plate is separated to form multiple runners by the inner panel, and each runner is respectively provided with an air inlet.The utility model generates two air inlets, can ejection gas be rectified and is layered, play the role of noise reduction, while two air inlets are able to satisfy the injection application of two kinds of gases by increasing a Venturi tube contraction flow region.
Description
Technical field
The utility model relates to a kind of venturi burner, in particular to a kind of venturi burning with decrease of noise functions
Device.
Background technique
Existing venturi burner is made of Venturi tube and gas nozzle, and Venturi tube is by contraction flow region, neck and expansion
The portion of dissipating composition.Gas nozzle effect is mainly high-pressure injection combustion gas and injection low-pressure air fluid, and is carried out in Venturi tube
Energy exchange carries out substance ginseng and mixes, to reach mixed gas clean-burning purpose at Venturi exit, but because of nozzle
The noise that high frequency can be generated while ejecting transonic speed injection air controls noise in acceptable model for environment-friendly function
Seem most important in enclosing.And a kind of gas of air that is only of the current injection of gas nozzle needs injection under certain operating conditions
Two kinds of gases are mixed and burned.This requirement is not achieved in venturi burner at this stage.
In order to which the noise generated to existing nozzle control effectively, and reach while the demand of two kinds of gas of injection, has
Necessity is transformed the contraction flow region of Venturi tube.
Utility model content
In view of this, the utility model proposes a kind of venturi burner with decrease of noise functions.
The utility model provides a kind of venturi burner with decrease of noise functions, including nozzle and Venturi tube, described
Venturi tube includes the first contraction flow region, neck and the enlarged portion of integrally connected, is equipped between the Venturi tube and the nozzle
Hardened structure, the hardened structure include outside plate and an at least inner panel, and the outside plate is connected to bottom and the institute of first contraction flow region
It states between nozzle, each inner panel extends from the outside plate inner wall and formed the second contraction flow region, and the inner panel separates the outside plate
Multiple runners are formed, each runner is respectively provided with an air inlet.
In one embodiment, there is second contraction flow region the second contraction flow region entrance and the second contraction flow region to export, the spray
The outlet of mouth is located at the second contraction flow region inlet that bottom inner panel is formed.
In one embodiment, the outside plate includes the side plate extended along venturi burner axis direction and is connected to
The top plate and bottom plate at the side plate both ends, the top plate are connected to the bottom of first contraction flow region, and the bottom plate is connected to institute
Nozzle is stated, the air inlet is arranged on the side plate.
In one embodiment, the quantity of the inner panel is set as one, and the outside plate is separated to form two by the inner panel
Runner, including first runner and second flow channel, the first runner is between the inner panel and the top plate and the first contraction flow region
It is formed, the second flow channel is formed between the inner panel and the bottom plate and nozzle.
In one embodiment, the first runner has the first air inlet, and first air inlet is arranged described
Side plate is located at the region of the first runner, and the second flow channel has the second air inlet, the second air inlet setting
It is located at the region of the second flow channel in the side plate.
In one embodiment, first air inlet and the second air inlet are the hole knot being arranged on the side plate
Structure.
In one embodiment, the cone angle of first contraction flow region, the second contraction flow region and enlarged portion is 5~40 °.
In one embodiment, the diameter of the second contraction flow region outlet is less than the diameter of the neck.
In one embodiment, the distance between the outlet of the nozzle and second contraction flow region outlet are 0.1~20mm.
In one embodiment, the distance between the second contraction flow region outlet and the neck are 0.1~20mm.
In conclusion the utility model provides a kind of venturi burner with decrease of noise functions, by improving venturi
The structure of burner connects a hardened structure, so that venturi burner increase at least one between Venturi tube bottom and nozzle
A Venturi tube contraction flow region.Second contraction flow region bore is set smaller than the first contraction flow region bore, guarantees nozzle jet-flow all
It can form vacuum after contraction flow region, form Venturi effect, while from the first air inlet and the second air inlet injection air.
And second contraction flow region can serve as the effect of deflector and reduce air flow outlet so that ejection gas is rectified and is layered
Velocity gradient largely reduces pneumatic noise from sound source.In addition, the burner structure of the utility model can draw simultaneously
Two kinds of gases are penetrated, multi-state demand is met, expand the use scope of venturi burner.
Detailed description of the invention
Fig. 1 is the side sectional view of the venturi burner of the utility model.
Fig. 2 is the air velocity illustraton of model that venturi burner shown in Fig. 1 does not increase hardened structure.
Fig. 3 is the air velocity illustraton of model that venturi burner shown in Fig. 1 increases hardened structure.
Fig. 4 is the air velocity contrast model figure of Fig. 2 and Fig. 3.
Specific embodiment
Before describing the embodiments in more detail, it should be understood that the utility model is not limited in the application hereafter or attached drawing
Described in detailed construction or arrangement of elements.The embodiment that the utility model can be realized for other way.Moreover, it should manage
Solution, the words and terms used herein are for illustrative purposes only, should not be interpreted in a limited way." packet used herein
Include ", "comprising", the similar wording such as " having " means comprising items listed thereafter, its equivalent and other additional things.It is special
It is not that when describing " a certain component ", it also may include more that the utility model, which does not limit the quantity of the element as one,
It is a.
As shown in Figure 1, the utility model provides a kind of venturi burner with decrease of noise functions, the venturi burner
Including Venturi tube 10, nozzle 12 and the hardened structure being arranged between Venturi tube 10 and nozzle 12.One is formed in hardened structure to receive
Contracting portion, the contraction flow region can largely control noise caused by venturi burner, play the role of reducing noise.
Venturi tube 10 includes the first contraction flow region 14, neck 16 and the enlarged portion 18 of integrally connected.The hardened structure includes
Outside plate 20 and at least an inner panel 22, wherein outside plate 20 is connected between the bottom of the first contraction flow region 14 and the outer wall of nozzle 12, often
The inner wall of one inner panel 22 from outside plate 20 extends and forms the second contraction flow region 24, and outside plate 20 is separated to form multiple runners by inner panel 22,
Each runner is respectively provided with an air inlet.Such structure can be a kind of using high-speed fuel gas stream injection when nozzle 12 works
Gas, such as air, or at least two gas of injection simultaneously, such as air and afterburning gas etc., improve the burning of burner
Efficiency meets plurality of application scenes, expands the purposes of venturi burner.
In the present embodiment, outside plate 20 is square structure, including the side plate 26 that extends along venturi burner axis direction and
It is connected to the top plate 28 and bottom plate 30 at 26 both ends of side plate, top plate 28 is connected to the bottom of the first contraction flow region 14, and bottom plate 30 is connected to
The outer wall of nozzle 12.It should be understood that in other embodiments, outside plate 20 is also possible to other shapes, and the utility model is simultaneously
Not to this restriction.
It can also be led to integrally connected, such as welding or integrated injection molding between outside plate 20 and Venturi tube 10
Other modes connection is crossed, such as is threadedly coupled.In the present embodiment, integrally connected side is used between outside plate 20 and Venturi tube 10
Formula.
In an illustrated embodiment, inner panel 22 is set as one, and outside plate 20 is separated to form two runners by an inner panel 22,
Including first runner 32 and second flow channel 34.Wherein, first runner 32 is between inner panel 22 and top plate 28 and the first contraction flow region 14
It is formed, what second flow channel 34 was formed between inner panel 22 and bottom plate 30 and nozzle 12.Second contraction flow region 24 has second to shrink
Portion's entrance 36 and the second contraction flow region outlet 38, the outlet 40 of nozzle 12 are arranged at the second contraction flow region entrance 36.
It should be pointed out that in other embodiments, when the quantity of inner panel 22 is set as extra one, nozzle 12 goes out
Mouth 40 should be arranged in correspondence in the second contraction flow region inlet that bottom inner panel is formed along venturi burner axis direction.
Air inlet is arranged on side plate 26.Specifically, first runner 32 has the first air inlet 42, second flow channel
34 have the second air inlet 44, and the region that side plate 26 is located at first runner 32, the second air inlet is arranged in the first air inlet 42
The region that side plate 26 is located at second flow channel 34 is arranged in entrance 44.In the present embodiment, the first air inlet 42 and the second air inlet enter
Mouth 44 is each implemented as the pore structure being arranged through side plate 26, which is uniformly distributed in the circumferential direction of side plate 26 respectively.
It should be understood that above-mentioned pore structure is only a kind of embodiment of the utility model, in other embodiments, root
According to specific design requirement, the first air inlet 42 and the second air inlet 44 also may be embodied to other air intake structures, the implementation of the two
Mode can also be different, such as the first air inlet 42 is arranged to pore structure, and hatch frame into strips is arranged in the second air inlet 44,
The utility model is not to this restriction.
Two air inlets enable venturi burner to introduce different gas respectively, meet the requirement of multi-state, can
To adapt to the demand of multiple gases mixing, and can achieve the purpose that be sufficiently mixed burning.
Venturi burner in the case where the same gas of injection such as air, penetrate for high-speed fuel gas by the work of nozzle 12
Stream, high-pressure gas are projected from the outlet of nozzle 12 40, reach the second contraction flow region 24, negative pressure are formed, from 44 injection of the second air inlet
The air of air, injection enters the second contraction flow region entrance 36 and combustion gas mixing through second flow channel 34.Mixed gas is shunk from second
Portion exports 38 high speed ejection, reaches the first contraction flow region 14, negative pressure is formed, from 42 injection air of the first air inlet, the air of injection
Enter the first compression unit 14 through first runner 32, and enters enlarged portion 18 through neck 16 and mixed sufficiently with above-mentioned mixed gas.?
During this, the air that double contraction flow region structures of venturi burner come in injection is rectified and is layered, and improves combustion gas stream
Body turbulent flow shape reduces the velocity gradient between Venturi tube 10 and nozzle 12, show referring concurrently to Fig. 2 to Fig. 4, Fig. 2 and do not increase
The air velocity illustraton of model of splice structure, Fig. 3 show the air velocity illustraton of model for increasing hardened structure, and Fig. 4 is Fig. 2's and Fig. 3
Air velocity contrast model figure, hardened structure weaken script high-speed flow, form the velocity gradient distribution slowed down, it is dynamic to reduce air
Power noise, to play the role of noise reduction.
Venturi tube 10 and nozzle 12 are carried out reasonable combination design by the utility model, are increased hardened structure and are made burner
There are double contraction flow regions and two air inlets.The data parameters of the venturi burner to the utility model are simply situated between below
It continues.
In the present embodiment, the cone angle of the first contraction flow region 14, the second contraction flow region 24 and enlarged portion 18 setting range is 5~
40 °, specific angle is depending on actual design demand.Between the outlet 40 of nozzle 12 and the second contraction flow region outlet 38 in the axial direction
Distance range is 0.1~20mm, and actual range is depending on design needs.In axial direction between second contraction flow region outlet 38 and neck 16
On distance range be 0.1~20mm, actual range view design needs depending on.The diameter of second contraction flow region outlet 38 is set as small
In the diameter of neck 16, design in this way can guarantee that nozzle jet-flow can form vacuum after two contraction flow regions, form literary mound
In effect, from two air inlet ejection gas.
It should be understood that having multiple second contraction flow regions at this time, in such feelings when the quantity of inner panel is set as multiple
Under condition, the second contraction flow region outlet diameter can be designed as it is incremented by successively from the bottom up along the axis direction of venturi burner,
And the diameter of all second contraction flow region outlets is respectively less than the diameter of the neck of Venturi tube.
In conclusion the utility model provides a kind of venturi burner with decrease of noise functions, by improving venturi
The structure of burner connects a hardened structure, so that venturi burner increase at least one between Venturi tube bottom and nozzle
A Venturi tube contraction flow region.Second contraction flow region bore is set smaller than the first contraction flow region bore, guarantees nozzle jet-flow all
It can form vacuum after contraction flow region, form Venturi effect, while from the first air inlet and the second air inlet injection air.
And second contraction flow region can serve as the effect of deflector and reduce air flow outlet so that ejection gas is rectified and is layered
Velocity gradient largely reduces pneumatic noise from sound source.In addition, the burner structure of the utility model can draw simultaneously
Two kinds of gases are penetrated, multi-state demand is met, expand the use scope of venturi burner.
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 utility model is by appended right
It is required that instead of making decisions based on these previous descriptions.Within the literal meaning and equivalent scope of the claims any
Change all should belong to these the scope of the claims.
Claims (10)
1. a kind of venturi burner with decrease of noise functions, including nozzle and Venturi tube, the Venturi tube includes one
The first contraction flow region, neck and the enlarged portion of connection, which is characterized in that be equipped between the Venturi tube and the nozzle hardened
Structure, the hardened structure include outside plate and an at least inner panel, the outside plate be connected to first contraction flow region bottom and the spray
Between mouth, each inner panel extends from the outside plate inner wall and is formed the second contraction flow region, and the outside plate is separated to form by the inner panel
Multiple runners, each runner are respectively provided with an air inlet.
2. as described in claim 1 with the venturi burner of decrease of noise functions, which is characterized in that the second contraction flow region tool
There are the second contraction flow region entrance and the outlet of the second contraction flow region, the outlet of the nozzle is located at the second contraction flow region that bottom inner panel is formed
Inlet.
3. as claimed in claim 2 with the venturi burner of decrease of noise functions, which is characterized in that the outside plate includes along institute
It states the side plate of venturi burner axis direction extension and is connected to the top plate and bottom plate at the side plate both ends, the top plate connection
To the bottom of first contraction flow region, the bottom plate is connected to the nozzle, and the air inlet is arranged on the side plate.
4. as claimed in claim 3 with the venturi burner of decrease of noise functions, which is characterized in that the quantity of the inner panel is set
It is set to one, the outside plate is separated to form two runners, including first runner and second flow channel by the inner panel, described first-class
Road is formed between the inner panel and the top plate and the first contraction flow region, the second flow channel be the inner panel and the bottom plate and
It is formed between nozzle.
5. as claimed in claim 4 with the venturi burner of decrease of noise functions, which is characterized in that the first runner has
The region that the side plate is located at the first runner, the second is arranged in first air inlet, first air inlet
Road has the second air inlet, and the region that the side plate is located at the second flow channel is arranged in second air inlet.
6. as claimed in claim 5 with the venturi burner of decrease of noise functions, which is characterized in that first air inlet
It is the pore structure being arranged on the side plate with the second air inlet.
7. as described in claim 1 with the venturi burner of decrease of noise functions, which is characterized in that first contraction flow region,
Second contraction flow region and the cone angle of enlarged portion are 5~40 °.
8. as claimed in claim 4 with the venturi burner of decrease of noise functions, which is characterized in that second contraction flow region goes out
The diameter of mouth is less than the diameter of the neck.
9. as claimed in claim 4 with decrease of noise functions venturi burner, which is characterized in that the outlet of the nozzle with
The distance between described second contraction flow region outlet is 0.1~20mm.
10. as claimed in claim 4 with the venturi burner of decrease of noise functions, which is characterized in that second contraction flow region
The distance between outlet and the neck are 0.1~20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820659975.9U CN208186339U (en) | 2018-05-04 | 2018-05-04 | Venturi burner with decrease of noise functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820659975.9U CN208186339U (en) | 2018-05-04 | 2018-05-04 | Venturi burner with decrease of noise functions |
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| Publication Number | Publication Date |
|---|---|
| CN208186339U true CN208186339U (en) | 2018-12-04 |
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ID=64432841
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820659975.9U Active CN208186339U (en) | 2018-05-04 | 2018-05-04 | Venturi burner with decrease of noise functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361700A (en) * | 2018-05-04 | 2018-08-03 | 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 | Venturi burner with decrease of noise functions |
-
2018
- 2018-05-04 CN CN201820659975.9U patent/CN208186339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361700A (en) * | 2018-05-04 | 2018-08-03 | 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 | Venturi burner with decrease of noise functions |
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