CN206449689U - A kind of circumference back fire device of use venturi air register - Google Patents
A kind of circumference back fire device of use venturi air register Download PDFInfo
- Publication number
- CN206449689U CN206449689U CN201720146737.3U CN201720146737U CN206449689U CN 206449689 U CN206449689 U CN 206449689U CN 201720146737 U CN201720146737 U CN 201720146737U CN 206449689 U CN206449689 U CN 206449689U
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- CN
- China
- Prior art keywords
- air distribution
- air
- venturi tube
- shell cavity
- venturi
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Abstract
The utility model provides a kind of circumference back fire device of use venturi air register, including Venturi tube, air distribution shell cavity and mozzle, described Venturi tube is coaxially nested with air distribution shell cavity, the two cooperatively forms air distribution chamber, described mozzle is coaxial docking with Venturi tube and air distribution shell cavity, air distribution shell cavity lower end is provided with contraction mouth, correspondence mozzle top is provided with outer enlarging, contraction mouth is connected with outer enlarging, circumference back fire device is located at furnace chamber is coaxial or arranged off-centre, described Venturi tube includes converging transition from top to bottom, aditus laryngis section and divergent segment.The utility model is simple in construction, Secondary Air is introduced using venturi principle, the front and rear U-shaped anti-burning for becoming traditional is burnt into circumference is counter, simplifies anti-sintering structure, make the anti-burner hearth for burning principle suitable for smaller volume, can sustained combustion, addition fuel will not because fuel absorb heat interrupt combustion process, bed of material permeability is good, fuel combustion is abundant, black smoke is substantially eliminated, fuel is saved, the thermal efficiency is high.
Description
Technical field
The utility model is related to technical field of combustion equipment, more particularly to a kind of circumference of use venturi air register is counter burns
Device.
Background technology
Vast northern country family warming is most of all to use domestic water heating coal-burning stove for heating stove, with life water
Flat raising, people should seek a kind of safety and economize on coal, without dirt to the performance requirement more and more higher of hot-water heating coal-burning stove for heating stove
The stove that dye, the thermal efficiency are high, family is easy to use, to meet the market demand of current domestic water heating coal-burning stove for heating stove.
Top in the body of heater of heating stove is provided with combustion chamber.The coal gas of coal combustion generation first moves upward to the top up to body of heater
Portion, by the bottom for moving to combustion chamber after the pressure at the top of body of heater still further below, further burns heat into combustion chamber.Due to
Space is limited in body of heater, and vertical apart from very little between the bottom and coal seam of combustion chamber, the burning point position of coal gas is low, and
Gather burning on same plane, form localized hyperthermia, easily burn out combustion chamber and support the fire bars in coal seam, and can also produce big
The nitrogen oxides of amount so that waste gas increases.
If the coal used is second-rate, such as the coal of the less coal of density or easy coking, in combustion easily
Air-locked phenomenon is formed, a large amount of coal gas are gathered in body of heater, it is impossible to enter combustion chambers burn, coal gas aggregation, which also exists, meets naked light
The risk of blast.
Utility model content
The utility model provides a kind of circumference back fire device of use venturi air register, simple in construction, utilizes literary mound
In principle introduce Secondary Air, become traditional front and rear U-shaped anti-burning and burnt into circumference is counter, simplify anti-sintering structure, make instead to burn principle applicable
In the burner hearth of smaller volume, can sustained combustion, addition fuel will not because fuel absorb heat interrupt combustion process, bed of material permeability
Good, fuel combustion fully, substantially eliminates black smoke, saves fuel, and the thermal efficiency is high.
In order to solve the above technical problems, the embodiment of the present application is provided, a kind of circumference of use venturi air register is counter to burn dress
Put, including Venturi tube, air distribution shell cavity and mozzle, described Venturi tube is coaxially nested with air distribution shell cavity, two
Person cooperatively forms air distribution chamber, and described mozzle is coaxial docking with Venturi tube and air distribution shell cavity, described air distribution chamber
Body case lower end is provided with contraction mouth, and correspondence mozzle top is provided with outer enlarging, and contraction mouth is connected with outer enlarging, described circle
All back fire devices are located at furnace chamber is coaxial or arranged off-centre, and described Venturi tube includes converging transition, aditus laryngis section and gradually from top to bottom
Expand section.
As a preferred technical scheme of the present utility model, described aditus laryngis fragment position provided with it is multiple along the circumferential direction
Equally distributed irregularly-shaped hole, the position of described irregularly-shaped hole is corresponding with air distribution chamber position.
As a preferred technical scheme of the present utility model, the divergent segment end diameter of described Venturi tube, match somebody with somebody
Wind shell cavity internal diameter, mozzle outer enlarging maximum gauge three it is equal.
As a preferred technical scheme of the present utility model, described air distribution chamber upper end is provided with Secondary Air entrance, institute
The mozzle lower end stated is provided with First air entrance.
As a preferred technical scheme of the present utility model, described air distribution shell cavity top is installed provided with body of heater
Install raised provided with air compartment in projection, described Venturi tube top.
The one or more technical schemes provided in the embodiment of the present application, have at least the following technical effects or advantages：
It is simple in construction, Secondary Air is introduced using venturi principle, the front and rear U-shaped anti-burning for becoming traditional is burnt into circumference is counter, is simplified
Anti- sintering structure, make it is anti-burn the burner hearth that principle is applied to smaller volume, can sustained combustion, addition fuel will not absorb heat because of fuel
And combustion process is interrupted, bed of material permeability is good, and fuel combustion fully, substantially eliminates black smoke, saves fuel, and the thermal efficiency is high.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying creative labor
Under the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present application；
Fig. 2 is the sectional view of the embodiment of the present application；
Fig. 3 is the side view of the embodiment of the present application；
Fig. 4 is the top view of the embodiment of the present application；
In Fig. 1-Fig. 4,1, Venturi tube, 2, air distribution shell cavity, 3, mozzle, 4, air distribution chamber, 5, contraction mouth, 6, extend out
Mouthful, 7, converging transition, 8, aditus laryngis section, 9, divergent segment, 10, irregularly-shaped hole, 11, Secondary Air entrance, 12, First air entrance, 13, body of heater peace
Dress is raised, 14, air compartment install raised.
Embodiment
The utility model provides a kind of circumference back fire device of use venturi air register, simple in construction, utilizes literary mound
In principle introduce Secondary Air, become traditional front and rear U-shaped anti-burning and burnt into circumference is counter, simplify anti-sintering structure, make instead to burn principle applicable
In the burner hearth of smaller volume, can sustained combustion, addition fuel will not because fuel absorb heat interrupt combustion process, bed of material permeability
Good, fuel combustion fully, substantially eliminates black smoke, saves fuel, and the thermal efficiency is high.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
Technical scheme is stated to be described in detail.
As Figure 1-Figure 4, a kind of circumference back fire device of use venturi air register described in the present embodiment, including text
Venturi 1, air distribution shell cavity 2 and mozzle 3, described Venturi tube 1 are coaxial nested with air distribution shell cavity 2, and the two is matched somebody with somebody
Conjunction forms air distribution chamber 4, and described mozzle 3 is coaxial docking with Venturi tube 1 and air distribution shell cavity 2, described air distribution chamber
The lower end of body case 2 is provided with contraction mouth 5, and correspondence mozzle 3 top is provided with outer enlarging 6, and contraction mouth 5 is connected with outer enlarging 6, institute
The circumference back fire device stated is located at furnace chamber is coaxial or arranged off-centre, and described Venturi tube 1 includes converging transition 7, larynx from top to bottom
Mouthful section 8 and divergent segment 9, according to venturi principle, fluid flows through converging transition, aditus laryngis end, divergent segment, the flow velocity highest at aditus laryngis,
Low-pressure area is formed at the aditus laryngis back side, and then introduces Secondary Air, the effect for being fully warmed-up air and burning being sufficiently mixed with flue gas is reached
Really, the kinetic pressure losses that Venturi tube is caused to flue gas are minimum.
Wherein, in actual applications, 8 positions of described aditus laryngis section are provided with multiple irregularly-shaped holes being distributed uniformly and circumferentially
10, the position of described irregularly-shaped hole 10 is corresponding with the position of air distribution chamber 4, and the Secondary Air of described air distribution intracavitary is entered by irregularly-shaped hole
It is sufficiently mixed in mozzle with First air.
Wherein, in actual applications, the end diameter of divergent segment 9 of described Venturi tube, the internal diameter of air distribution shell cavity 2,
The maximum gauge three of outer enlarging 6 of mozzle is equal, and three, which coordinates, realizes the close of mounting structure, while literary mound can effectively be placed
In pipe position be moved.
Wherein, in actual applications, the described upper end of air distribution chamber 4 is provided with Secondary Air entrance 11, the described lower end of mozzle 3
Provided with First air entrance 12, Secondary Air enters air distribution chamber from air compartment by Secondary Air entrance, and First air passes through from cylinder combustion zone
First air entrance enters mozzle.
Wherein, in actual applications, projection 13, described text are installed in the described top of air distribution shell cavity 2 provided with body of heater
Projection 14 is installed in the top of venturi 1 provided with air compartment, and air distribution shell cavity is installed by raised with body of heater, and Venturi tube passes through projection
Installed with air compartment.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and the modification made according to technical spirit of the present utility model to above example, still
Belong in the range of technical solutions of the utility model.
Claims (5)
1. a kind of circumference back fire device of use venturi air register, including Venturi tube（1）, air distribution shell cavity（2）With lead
Flow tube（3）, it is characterised in that described Venturi tube（1）With air distribution shell cavity（2）Coaxial nested, the two is cooperatively formed
Wind chamber（4）, described mozzle（3）With Venturi tube（1）And air distribution shell cavity（2）It is coaxial docking, described air distribution chamber
Body case（2）Lower end is provided with contraction mouth（5）, correspondence mozzle（3）Top is provided with outer enlarging（6）, contraction mouth（5）With outer enlarging
（6）It is connected, described circumference back fire device is located at furnace chamber is coaxial or arranged off-centre, described Venturi tube（1）From upper and
Include converging transition down（7）, aditus laryngis section（8）And divergent segment（9）.
2. the circumference back fire device of a kind of use venturi air register according to claim 1, it is characterised in that described
Aditus laryngis section（8）Position is provided with multiple irregularly-shaped holes being distributed uniformly and circumferentially（10）, described irregularly-shaped hole（10）Position with
Air distribution chamber（4）Position correspondence.
3. the circumference back fire device of a kind of use venturi air register according to claim 1, it is characterised in that described
The divergent segment of Venturi tube（9）End diameter, air distribution shell cavity（2）The outer enlarging of internal diameter, mozzle（6）Maximum gauge three
It is equal.
4. the circumference back fire device of a kind of use venturi air register according to claim 1, it is characterised in that described
Air distribution chamber（4）Upper end is provided with Secondary Air entrance（11）, described mozzle（3）Lower end is provided with First air entrance（12）.
5. the circumference back fire device of a kind of use venturi air register according to claim 1, it is characterised in that described
Air distribution shell cavity（2）Install raised provided with body of heater in top（13）, described Venturi tube（1）Install raised provided with air compartment in top
（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720146737.3U CN206449689U (en) | 2017-02-20 | 2017-02-20 | A kind of circumference back fire device of use venturi air register |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720146737.3U CN206449689U (en) | 2017-02-20 | 2017-02-20 | A kind of circumference back fire device of use venturi air register |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206449689U true CN206449689U (en) | 2017-08-29 |
Family
ID=59665973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720146737.3U Expired - Fee Related CN206449689U (en) | 2017-02-20 | 2017-02-20 | A kind of circumference back fire device of use venturi air register |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206449689U (en) |
-
2017
- 2017-02-20 CN CN201720146737.3U patent/CN206449689U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20190220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |