CN209458937U - A kind of fire cover for gas kitchen range - Google Patents

A kind of fire cover for gas kitchen range Download PDF

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Publication number
CN209458937U
CN209458937U CN201822168778.XU CN201822168778U CN209458937U CN 209458937 U CN209458937 U CN 209458937U CN 201822168778 U CN201822168778 U CN 201822168778U CN 209458937 U CN209458937 U CN 209458937U
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China
Prior art keywords
wall
hole
roof
fire
fire hole
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CN201822168778.XU
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Chinese (zh)
Inventor
马建明
毛友祥
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Ningbo integrity Technology Co.,Ltd.
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Ningbo Songjie Electrical Appliances Co Ltd
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Abstract

The utility model discloses a kind of fire cover for gas kitchen range, including roof annular in shape and are connected to the outer wall and inner wall of roof two sides, the space that the inner wall encloses forms ejecting port, and the roof offers several diversion trenches, forms baffle between adjacent two diversion trench;Wherein, the diversion trench is incrementally increased from the outer rim of roof towards ejecting port direction groove depth, the side of the trapezoidal long side in the section of diversion trench, which has, to be flared and is connected to ejecting port, baffle has two guide surfaces, one end of two guide surfaces is connected, the guiding to auxiliary air is realized by the diversion trench opened up on roof, and it the shape of diversion trench and is obliquely installed and promotes auxiliary air and enter the flow of ejecting port, auxiliary air layering is directed into ejecting port in conjunction with the baffle between two diversion trenches, main flame in ejecting port is enabled to get the auxiliary air filled into different vertical height, improving combustion efficiency.

Description

A kind of fire cover for gas kitchen range
Technical field
The utility model relates to the technical fields of gas-cooker, more particularly, to a kind of fire cover for gas kitchen range.
Background technique
Fire cover is one of important component of gas-cooker, and the top and burner for being pressed against burner are fitted close, and forms one A entirety completes combustion process.Existing burner at work, needs sufficiently to combine with oxygen to guarantee the abundant of burning Property, but often fire cover functions only as the effect of steady flame for promoting the adequacy of burning without any positive in existing burner Effect.
Utility model content
It the purpose of the utility model is to provide a kind of fire cover for gas kitchen range, can assist introducing auxiliary air into burner, increase Amount of oxygen promotes combustion efficiency when large-scale combustion.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of fire cover for gas kitchen range including roof annular in shape and is connected to the outer wall and inner wall of roof two sides, it is described in The space that wall encloses forms ejecting port, and the roof offers several diversion trenches, forms baffle between adjacent two diversion trench;Its In, the diversion trench is incrementally increased from the outer rim of roof towards ejecting port direction groove depth, the trapezoidal long side in the section of diversion trench Side, which has, to be flared and is connected to ejecting port, and baffle has two guide surfaces, and one end of two guide surfaces is connected.
By using above-mentioned technical proposal, the flame sprayed in ejecting port makes upward with one in entire ejecting port Hot-fluid so that external air is inhaled under the drive of hot-fluid, the air being inhaled into herein is referred to as auxiliary air, secondary Thermal efficiency when air imbibed quantity is for entire burner operation plays more part and parcel;This fire cover utilizes diversion trench by two Secondary air guided importing, diversion trench is that the groove depth that is obliquely installed close to ejecting port side is relatively large, so that the secondary sky introduced Gas equally has downward flow velocity, and then the air-flow of an auxiliary air is formd in the region in diversion trench, increases external The inlet of air, and the side of diversion trench and ejecting port is that long side is spread auxiliary air using flaring, promotes secondary sky Efficiency of combustion is improved in supplement region when gas enters, while making the more abundant promotion thermal efficiency of burning;Meanwhile baffle Guide functions of two guide surfaces as auxiliary air form layering and lead when entering ejecting port with the auxiliary air of diversion trench slot bottom Enter effect so that ejecting port in vertical direction auxiliary air to fill into range bigger, preferably promote the thermal efficiency and burning Effect.
The utility model is further arranged to: the roof includes the cambered surface of leading at outer rim, described to lead the one of cambered surface Side and the side sideline of diversion trench coincide.
By using above-mentioned technical proposal, in horizontal air inlet, auxiliary air can be oriented to fire cover along cambered surface is led, and It imported into diversion trench;It leads cambered surface to be connected with diversion trench perfection, improve in horizontal air inlet, the flow that auxiliary air imports, Better improving combustion efficiency.
The utility model is further arranged to: being formed mixed air cavity between the outer wall and inner wall, is evenly distributed on the inner wall more A the first fire hole group being connected to mixed air cavity, wherein the first fire hole group is located at the junction of two guide surfaces.
By using above-mentioned technical proposal, part auxiliary air converges to the connection of two guide surfaces under the guiding of guide surface Place, and the junction that the first fire hole group is just provided with two guide surfaces realizes that main flame is contacted with auxiliary air faster, is promoted Stability when burning.
The utility model is further arranged to: the first fire hole group include the main fire hole of multiple inner rings and be located at inner ring master Close to multiple first stable flame holes of roof side above fire hole.
By using above-mentioned technical proposal, the first stable flame hole is in the top of the main fire hole of inner ring, enables the first stable flame hole The main fire hole of enough elder generation's inner rings contacts auxiliary air, guarantees that the first stable flame hole ejects the combustion thermal efficiency of steady fireworks flame, and is protecting It demonstrate,proves the first stable flame hole and ejects the combustion thermal efficiency of steady fireworks flame and preferably control the main flame sprayed by the main fire hole of inner ring Combustion state.
The utility model is further arranged to: several biography fire blocks connecting with inner wall are provided in the mixed air cavity, it is described The main fire hole of inner ring runs through inner wall from the bottom for passing fiery block, and the first stable flame hole runs through inner wall from the side wall for passing fiery block.
By using above-mentioned technical proposal, the setting of fiery block is passed so that shortening the first stable flame hole with the main fire hole of inner ring The main flame of lower end surface inner ring that nearly fire distance, the especially main fire hole of inner ring are set to the fiery block of biography can be directly by passing fiery block from inner ring master Fire hole ejects, and reduces heat loss;Simultaneously because the setting for passing fiery block enables the main fire hole of inner ring and the first stable flame hole more preferable It realizes and separates, reduce the interference of jet path between the main flame of inner ring and steady fireworks flame.
The utility model is further arranged to: the diameter of first stable flame hole be greater than the main fire hole of inner ring diameter, first Be in 10 ~ 15 ° of angle between the duct central axis and horizontal plane of stable flame hole, the duct central axis and horizontal plane of the main fire hole of inner ring it Between be in 30 ~ 45 ° of angle.
By using above-mentioned technical proposal, the diameter that the diameter of the first stable flame hole is greater than the main fire hole of inner ring is mainly in view of The setting position fire hole more main than inner ring of first stable flame hole earlier touch auxiliary air, the diameter of the first stable flame hole makes more greatly The more prosperous setting angle in combination with to the first stable flame hole and the main fire hole of inner ring of the steady fireworks flame sprayed, improves the main fire of inner ring The stability of the burning of flame.
The utility model is further arranged to: the second fire hole group being connected to mixed air cavity is offered on the outer wall, it is described If the second fire hole group includes the main fire hole in several circumferentially uniformly distributed outer rings and the close roof side above the main fire hole in outer ring Dry the second circumferentially uniformly distributed stable flame hole;The diameter of the main fire hole in outer ring is greater than the second stable flame hole, in the duct of the main fire hole in outer ring It is in 41 ~ 45 ° of angle between mandrel and horizontal plane, the duct central axis of the second stable flame hole coincides with horizontal plane.
By using above-mentioned technical proposal, the second stable flame hole is in the top of the main fire hole in outer ring, enables the main flame in outer ring Enough steady fireworks flames ejected by the second stable flame hole control and reach optimum state, the steady fireworks that the second stable flame hole is ejected Flame, which can sufficiently hold main flame, makes its continued stable combustion, improves the thermal efficiency.
In conclusion the advantageous effects of the utility model are as follows:
1, the guiding to auxiliary air is realized by the diversion trench that opens up on roof, and the shape of diversion trench and inclination It is arranged and promotes the flow that auxiliary air enters ejecting port, is directed into auxiliary air layering in conjunction with the baffle between two diversion trenches In ejecting port, main flame in ejecting port is enabled to get the auxiliary air filled into different vertical height, promotes burning effect Rate;
2, outer wall and inner wall are all made of the set-up mode that main fire hole matches stable flame hole, promote the thermal efficiency of inside and outside main flame, benefit Holding main flame with steady fireworks flame makes its continued stable combustion.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the fire cover for gas kitchen range under a wherein visual angle;
Fig. 2 is the top view of fire cover for gas kitchen range;
Fig. 3 is structural schematic diagram of the fire cover for gas kitchen range under another visual angle;
Fig. 4 is the cross-sectional view of fire cover for gas kitchen range.
In figure, 1, roof;11, diversion trench;111, it is flared;112, short side;113, long side;12, baffle;121, it guides Face;13, cambered surface is led;2, outer wall;21, the main fire hole in outer ring;22, the second stable flame hole;3, inner wall;31, the main fire hole of inner ring;32, first Stable flame hole;4, ejecting port;5, air cavity is mixed;6, fiery block is passed.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Refering to fig. 1 with Fig. 2, a kind of fire cover for gas kitchen range is connected to 1 two sides of roof including roof 1 annular in shape and to downward The inner wall 3 and outer wall 2 stretched.The space that inner wall 3 encloses forms an ejecting port 4, and roof 1 offers multiple circumferentially uniformly distributed guiding Slot, forms baffle 12 between adjacent two guide groove, the front projection of guide groove formed it is substantially trapezoidal, including short side 112 with Long side 113, long side 113 are bonded with ejecting port 4, and wherein the groove depth of guide groove is stepped up from short side 112 to 113 direction of long side, And a flaring 111 is formed at long side 113.
The two sides of baffle 12 are respectively provided with guide surface 121, guide surface 121 and the inner sidewall as diversion trench 11, water conservancy diversion Block 12 is roughly triangular, and one end of two guide surfaces 121 is connected.
Roof 1 further includes leading cambered surface 13 set on outer rim, and the side and each short side 112 for leading cambered surface 13 coincide.
Refering to fig. 1 with Fig. 3, a mixed air cavity 5 is formed between outer wall 2 and inner wall 3, if offering on inner wall 3 circumferentially uniformly distributed Dry first fire hole group, the first fire hole group are in the junction of two guide surfaces.First fire hole group include the main fire hole 31 of multiple inner rings with And the first stable flame hole 32 above the main fire hole 31 of inner ring.It is provided in mixed air cavity 5 multiple identical as the first fire hole group quantity Biography fire block 6, pass fiery block 6 and connect with inner wall 3, the main fire hole 31 of inner ring runs through inner wall 3 from the lower end surface for passing fire block 6 and opens up, first Side wall inleakage of the stable flame hole 32 from the fiery block 6 of biography.
Offer the second fire hole group on outer wall 2, the second fire hole group include the main fire hole 21 in several circumferentially uniformly distributed outer rings and Several second stable flame holes 22 above the main fire hole 31 of inner ring, the main fire hole 21 in outer ring are connected to mixed air cavity with the second stable flame hole 22 5。
Refering to Fig. 4, the diameter of the main fire hole 31 of inner ring less than the first stable flame hole 32 diameter, in the duct of the first stable flame hole 32 There is angle a, for angle a between 10 ~ 15 °, preferably angle a is 10 ° between mandrel and horizontal plane;The hole of the main fire hole 31 of inner ring There is angle b, for angle b between 30 ~ 45 °, preferably angle b is 35 ° between road central axis and horizontal plane.The main fire hole 21 in outer ring Diameter be greater than the second stable flame hole 22 diameter, between the duct central axis and horizontal plane of the main fire hole 21 in outer ring have angle c, folder Angle c is between 41 ~ 45 °, and preferably 45 °;The duct central axis of second stable flame hole 22 coincides with horizontal plane.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (7)

1. a kind of fire cover for gas kitchen range, including roof (1) annular in shape and it is connected to the outer wall (2) and inner wall of roof (1) two sides (3), the space that the inner wall (3) encloses forms ejecting port (4), which is characterized in that the roof (1) offers several diversion trenches (11), baffle (12) are formed between adjacent two diversion trench (11);Wherein, outer rim court of the diversion trench (11) from roof (1) It is incrementally increased to ejecting port (4) direction groove depth, the side of the trapezoidal long side in section (113) of diversion trench (11) has flaring (111) and with ejecting port (4) it is connected to, baffle (12) has two guide surfaces (121), and one end of two guide surfaces (121) is connected.
2. a kind of fire cover for gas kitchen range according to claim 1, which is characterized in that the roof (1) includes being located at outer rim Lead cambered surface (13), the side for leading cambered surface (13) and the side sideline of diversion trench (11) coincide.
3. a kind of fire cover for gas kitchen range according to claim 1, which is characterized in that shape between the outer wall (2) and inner wall (3) At mixed air cavity (5), uniformly distributed multiple the first fire hole groups being connected to mixed air cavity (5) on the inner wall (3), wherein the first fire hole group position In the junction of two guide surfaces (121).
4. a kind of fire cover for gas kitchen range according to claim 3, which is characterized in that the first fire hole group includes multiple inner rings Main fire hole (31) and multiple first stable flame holes (32) for being located at close roof (1) side above the main fire hole of inner ring (31).
5. a kind of fire cover for gas kitchen range according to claim 4, which is characterized in that be provided in the mixed air cavity (5) several The biography fire block (6) connecting with inner wall (3), the main fire hole of inner ring (31) run through inner wall (3) from the bottom for passing fiery block (6), and first Stable flame hole (32) runs through inner wall (3) from the side wall for passing fiery block (6).
6. a kind of fire cover for gas kitchen range according to claim 4, which is characterized in that the diameter of first stable flame hole (32) is big It is in 10 ~ 15 ° of angle between the diameter of the main fire hole of inner ring (31), the duct central axis and horizontal plane of the first stable flame hole (32), It is in 30 ~ 45 ° of angle between the duct central axis and horizontal plane of the main fire hole of inner ring (31).
7. a kind of fire cover for gas kitchen range according to claim 1, which is characterized in that offered and mixed gas on the outer wall (2) Second fire hole group of chamber (5) connection, the second fire hole group include several main fire holes in circumferentially uniformly distributed outer ring (21) and are located at Close to several circumferentially uniformly distributed second stable flame holes (22) of roof (1) side above the main fire hole in outer ring (21);The main fire in outer ring The diameter in hole (21) is greater than the second stable flame hole (22), is in 41 ~ 45 ° between the duct central axis and horizontal plane of the main fire hole in outer ring (21) Angle, the duct central axis of the second stable flame hole (22) coincides with horizontal plane.
CN201822168778.XU 2018-12-22 2018-12-22 A kind of fire cover for gas kitchen range Active CN209458937U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822168778.XU CN209458937U (en) 2018-12-22 2018-12-22 A kind of fire cover for gas kitchen range

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822168778.XU CN209458937U (en) 2018-12-22 2018-12-22 A kind of fire cover for gas kitchen range

Publications (1)

Publication Number Publication Date
CN209458937U true CN209458937U (en) 2019-10-01

Family

ID=68041759

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822168778.XU Active CN209458937U (en) 2018-12-22 2018-12-22 A kind of fire cover for gas kitchen range

Country Status (1)

Country Link
CN (1) CN209458937U (en)

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Effective date of registration: 20200820

Address after: 315400 No.22, Century Road, Doumen village, Mazhu Town, Yuyao City, Ningbo City, Zhejiang Province (self declaration)

Patentee after: Ningbo integrity Technology Co.,Ltd.

Address before: Yuyao Mazhu Town Doumen village 315400 Zhejiang city of Ningbo Province

Patentee before: NINGBO SONGJIE ELECTRIC Co.,Ltd.