CN206130984U - Fire cover for gas kitchen range - Google Patents
Fire cover for gas kitchen range Download PDFInfo
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- CN206130984U CN206130984U CN201621196500.8U CN201621196500U CN206130984U CN 206130984 U CN206130984 U CN 206130984U CN 201621196500 U CN201621196500 U CN 201621196500U CN 206130984 U CN206130984 U CN 206130984U
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- fire
- kitchen range
- gas kitchen
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Abstract
The utility model relates to a fire cover for gas kitchen range, which comprises a body, be equipped with the mixing chamber on the lower surface of body, be equipped with a plurality of intercommunications on the lateral wall of body the fiery hole of mixing chamber, its characterized in that the fire hole includes by interior and contraction section, smooth section and expansion section that set gradually outward, wherein the cross section of contraction section reduces along the gas flow direction gradually, smooth section's cross section is unchangeable, the cross section of expansion section is crescent along the gas flow direction. Compared with the prior art, the utility model provides a fire cover for gas kitchen range, contraction section and smooth section's design provides the resistance of gas circulation on the fire hole, has effectively avoided the tempering, the design of expansion section has then reduced the velocity of flow of gas, has effectively avoided the emergence from the flame phenomenon. The utility model discloses a special construction's fiery hole design has been avoided covering with apt flame hole at the fire, has simplified process scheme, has reduced the processing cost.
Description
Technical field
The utility model is related to a kind of gas-cooker, refers specifically to a kind of fire cover for gas kitchen range.
Background technology
Existing gas-cooker, to avoid tempering, arranges fire hole and stable flame hole generally in fire cover, is burnt by stable flame hole
Flame is avoiding the tempering of main fire hole；Cause the manufacturing procedure of fire cover complicated, high processing costs.Meanwhile, existing fire cover structure
The generation from flame phenomenon is cannot be avoided when gaseous-pressure fluctuates.
The content of the invention
Technical problem to be solved in the utility model is provided one kind and need not set in addition for the present situation of prior art
Putting stable flame hole can obtain good steady flame effect and can be while avoiding the fire cover for gas kitchen range occurred from flame phenomenon.
The utility model solve the technical scheme that adopted of above-mentioned technical problem for：The fire cover for gas kitchen range, including body, institute
The lower surface for stating body is provided with mixing chamber, and the lateral wall of the body is provided with the fire hole of multiple connections mixing chamber；
It is characterized in that：
The fire hole includes contraction section, smooth section and the expansion segment for setting gradually from inside to outside；Wherein described contraction section
Cross section is gradually reduced from inside to outside；The cross section of the smooth section is equal everywhere；The cross section of the expansion segment is from inside to outside
Gradually increase.
Preferably to be avoided being tempered and from flame, the volume of the expansion segment is more than or equal to the volume of the contraction section.
Preferably, each point meets the equation below on the contraction section and the expansion segment：
x2/a2-y2/b2=1
Wherein, x, y be on the fire hole each point with the center line of the fire hole as Y-axis, with the vertical line of center line as Y-axis
Abscissa and ordinate；
A is the radius of the smooth section, and the span of a is 0.2～1.0mm；
B is fire hole size coefficient, and the span of b is 1～3；The value of b affects the aperture of outlet fire hole, and b is bigger, hole
Footpath is less, conversely, b more small-bores are bigger.
Center line with each fire hole is as y-coordinate.
It is preferred that the center line of the fire hole is with respect to the horizontal plane into 10～80 ° of angles.The steady flame effect of the program is more preferable.
Used as further improvement, the length of the smooth section is 1 with the length ratio of the contraction section and the expansion segment:
1.5～3:1.5～4.
The cross section of the fire hole is circular or oval.
Compared with prior art, fire cover for gas kitchen range provided by the utility model, contraction section and smooth section sets on fire hole
Meter effectively prevent tempering there is provided the resistance of gas circulation；The design of expansion segment then reduces the flow velocity of combustion gas, is prevented effectively from
From the generation of flame phenomenon.The utility model is designed by the fire hole of special construction, it is to avoid stable flame hole is processed in fire cover, letter
Change work flow, reduce processing cost.
Description of the drawings
Fig. 1 is the utility model embodiment assembling structure schematic diagram；
Fig. 2 is the longitudinal sectional view of the utility model embodiment；
Fig. 3 is the enlarged drawing of part in Fig. 2.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1 to Figure 3, the fire cover for gas kitchen range includes：
Body 1, the lower surface of body 1 is provided with mixing chamber 2, and on the lateral wall 11 of body 1 multiple companies have been evenly distributed
The fire hole 3 of logical mixing chamber 2；The cross section of fire hole is circle, or it is oval.
Fire hole 3 is disposed with from inside to outside contraction section 31, smooth section 32 and expansion segment 33.
Wherein the cross section of contraction section 31 is gradually reduced along fuel gas flow direction；The cross section of smooth section 32 is constant；Expansion
The cross section of section 33 gradually increases along fuel gas flow direction；Appearance of the volume of expansion segment 33 slightly larger than contraction section 31 in the present embodiment
Product；Smooth section 32 is 1 with the length ratio of contraction section 31, expansion segment 33:2:2.2.
In the present embodiment, each point meets the equation below on contraction section 31 and expansion segment 33：
x2/a2-y2/b2=1
Wherein, x, y are the abscissa and ordinate of each point on the fire hole, and the center line with each fire hole is as y-coordinate；This reality
It is 30 ° to apply the angle α in example between the center line and horizontal plane of fire hole 3.
A is the radius of the smooth section, and the span of a is 0.2～1.0mm；A takes 0.8mm in the present embodiment.
B is fire hole size coefficient, and the span of b is 1～3；B takes 2 in the present embodiment.
When gas-cooker burns, the gaseous mixture of combustion gas and air enters the contraction section of each fire hole from mixing chamber, due to contraction section
Cross section be gradually reduced, therefore combustion gas flowing be subject to certain resistance, combustion gas via smooth section enter expansion segment after, circulation
Space increases suddenly, and gas flow rate is reduced, and effectively prevent the generation from flame phenomenon；Simultaneously because the company of smooth section and expansion segment
Design is connect, combustion gas forms tiny structure in both intersections, it is ensured that the one-way flow of combustion gas, while the resistance that smooth section is generated
Power, combustion gas cannot flow backwards, and effectively prevent the generation of tempering phenomenon.
Claims (6)
1. a kind of fire cover for gas kitchen range, including body (1), the lower surface of the body (1) is provided with mixing chamber (2), the body
(1) lateral wall (11) is provided with the fire hole (3) of multiple connections mixing chamber (2)；
It is characterized in that：
The fire hole (3) includes the contraction section (31), smooth section (32) and expansion segment (33) for setting gradually from inside to outside；Wherein institute
The cross section for stating contraction section (31) is gradually reduced from inside to outside；The cross section of the smooth section (32) is equal everywhere；The expansion
The cross section of section (33) gradually increases from inside to outside.
2. fire cover for gas kitchen range according to claim 1, it is characterised in that the volume of the expansion segment (33) is more than or equal to institute
State the volume of contraction section (31).
3. fire cover for gas kitchen range according to claim 1 and 2, it is characterised in that the contraction section (31) and the expansion segment
(33) each point meets the equation below on：
x2/a2-y2/b2=1
Wherein, x, y are horizontal seat of each point with the center line of the fire hole as Y-axis, with the vertical line of center line as Y-axis on the fire hole
Mark and ordinate；
A is the radius of the smooth section, and the span of a is 0.2～1.0mm；
B is fire hole size coefficient, and the span of b is 1～3.
4. fire cover for gas kitchen range according to claim 3, it is characterised in that the center line of the fire hole (3) is with respect to the horizontal plane
Into 10～80 ° of angles.
5. fire cover for gas kitchen range according to claim 4, it is characterised in that the length of the smooth section (32) and the contraction
The length ratio of section (31) and the expansion segment (33) is 1:1.5～3:1.5～4.
6. fire cover for gas kitchen range according to claim 5, it is characterised in that the cross section of the fire hole is circular or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196500.8U CN206130984U (en) | 2016-11-05 | 2016-11-05 | Fire cover for gas kitchen range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196500.8U CN206130984U (en) | 2016-11-05 | 2016-11-05 | Fire cover for gas kitchen range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206130984U true CN206130984U (en) | 2017-04-26 |
Family
ID=58578220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621196500.8U Active CN206130984U (en) | 2016-11-05 | 2016-11-05 | Fire cover for gas kitchen range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206130984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642123A (en) * | 2016-11-05 | 2017-05-10 | 宁波方太厨具有限公司 | Gas stove fire cover |
-
2016
- 2016-11-05 CN CN201621196500.8U patent/CN206130984U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642123A (en) * | 2016-11-05 | 2017-05-10 | 宁波方太厨具有限公司 | Gas stove fire cover |
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