Porous independent combustion safety furnace end

Abstract

The utility model relates to a multi-hole independent combustion safety furnace end which comprises a furnace body and a combustor arranged in the furnace body, a cavity is arranged in the furnace body, the combustor is arranged in the cavity, and gaps are reserved between the bottom and the side face of the combustor and the interior of the furnace body. The bottom of the furnace body is further provided with a gas inlet allowing premixed gas to be input, and the gas inlet is communicated with the cavity. A plurality of rows of combustion holes penetrating through the side wall of the combustor are formed in the side face of the combustor, every two adjacent rows of combustion holes are separated through a protruding edge, premixed fuel gas entering from the gas inlet can be led into the combustor to be combusted through each row of combustion holes after passing through the gap, and independent combustion of each row of combustion holes is achieved. The anti-blocking valve not only has an anti-blocking function, but also is simple in product structure and convenient to process, so that the production cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas equipment, in particular to a multi-hole independent combustion safety burner. BACKGROUND

[0002] At present, there are mainly two kinds of commercial gas stoves, one is directly connected to combustible gas combustion, and the other is to first mix combustible gas and air, and then enter the premixed gas stove for combustion. The former is mainly used in families; the latter is mainly used in canteens, restaurants, hotels and food processing plants, etc. Its characteristics are large power, fast heating and fast tempering.

[0003] In the commonly used premixed gas stove, the inner wall of the burner is provided with a plurality of annularly arranged gas injection ports, and the premixed combustible gas is injected from the gas injection ports in the stove body. A circle of through holes is arranged on the bottom surface of the side wall of the burner, and each row of gas injection ports located at the position of each through hole is connected with the through hole. The combustible gas enters each through hole and is injected from the row of gas injection ports connected with the through hole for combustion, thereby realizing multi-hole and independent combustion, which helps to improve the tempering phenomenon and eliminate safety hazards.

[0004] However, the burner structure of the above structure is complex, and a circle of annularly arranged through holes and a plurality of circles of gas injection ports need to be machined at the same time, and each row of gas injection ports can be connected with the corresponding through hole. It can be seen that the machining is difficult, and the machining precision is also high. This greatly increases the processing cost and reduces the processing efficiency, thereby making the production cost of the product high. CONTENT OF THE UTILITY MODEL

[0005] Therefore, it is necessary to provide a multi-hole independent combustion safety burner which not only has a blocking function, but also has a simple structure and is easy to process, thereby reducing the production cost.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme.

[0007] The utility model provides a kind of multi-hole independent combustion safety burner, including stove body and the burner being arranged in stove body, the cavity is arranged in the stove body, the burner is arranged in the cavity, and the bottom and side surface of burner are all left with gap in the stove body;The bottom of the stove body is also provided with the gas inlet that can be input for premixed gas, and the gas inlet is connected with the cavity;The burner is closed at the bottom and is pot-shaped, and its side surface is provided with a plurality of rows of combustion holes penetrating the side wall of the burner, and the adjacent two rows of combustion holes are separated by a convex rib, so that the premixed gas entering from the gas inlet can be burned in the burner after passing through the gap, and independent combustion of each row of combustion holes is realized.

[0008] Preferably, the ribs are arranged in an array on the side wall of the burner, and the length direction of the ribs is consistent with the length direction of the burner.

[0009] Preferably, a step is arranged in the furnace body, the burner is provided with a flange, and the burner is supported on the step by the flange, so that the burner is suspended in the cavity.

[0010] Preferably, the height of the ribs gradually decreases from top to bottom, and the burner is adapted to be suspended in the cavity by the ribs.

[0011] Preferably, a cover is further arranged, which covers the top of the burner to seal the gap between the burner and the furnace body.

[0012] Preferably, the upper end surface of the burner is provided with a ring of auxiliary combustion holes, and each auxiliary combustion hole corresponds to a row of the combustion holes.

[0013] Preferably, the inner diameter of the cover is greater than the radius of the circle on which the ring of auxiliary combustion holes is located, so that the auxiliary combustion holes are all exposed.

[0014] Preferably, the gas inlet is provided with threads adapted to be connected to the gas premixing device.

[0015] Preferably, a permanent light ignition device is arranged beside the furnace body, and the permanent light ignition device is provided with a gas inlet pipe connected to a gas pipeline and an air inlet pipe connected to a pressurized air inlet pipe.

[0016] Preferably, a permanent light ignition device is arranged beside the furnace body, and the permanent light ignition device is connected to the gas premixing device.

[0017] Compared with the burners of the same type of gas equipment in the prior art, the burner of the utility model has the following advantages:

[0018] Firstly, the burner of the utility model is pot-shaped with a closed bottom, and no combustion hole is arranged at the bottom, but only at the side, so that the phenomenon of the bottom combustion hole being blocked does not occur, and thus the blocking prevention effect can be achieved.

[0019] Secondly, the burner of the utility model arranges the combustion holes in rows, and each combustion hole is exposed, so that the processing is convenient and the cost is low.

[0020] Thirdly, after the burner is used in the furnace head, the gas is combusted at each combustion hole, and the combustion of each row of combustion holes is independent and does not affect each other, so that multi-hole and independent combustion is achieved, and the backfire phenomenon does not easily occur, and thus the safety performance of the product is high. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the exploded view schematic diagram of the porous independent combustion safety burner head in the embodiment;

[0022] Figure 2 It is the cross-sectional view schematic diagram of the porous independent combustion safety burner head in the embodiment;

[0023] Figure 3 It is the whole structure schematic diagram of the burner in the embodiment.

[0024] The realization and function and principle of the utility model will be further described in the specific implementation mode in combination with the drawings. Specific implementation mode

[0025] The following will be further described in combination with the drawings and specific implementation examples.

[0026] As shown in Figure 1 and Figure 2 , the embodiment provides a porous independent combustion safety burner head 100, which comprises a furnace body 10 and a burner 20 arranged in the furnace body 10, a cavity 30 is arranged in the furnace body 10, the burner 20 is arranged in the cavity 30, and the bottom and the side of the burner 20 are both left with a gap 40 in the furnace body; the bottom of the furnace body 10 is further provided with a gas inlet 11 for premixed gas input, the gas inlet 11 is communicated with the cavity 30; the burner 20 is in the shape of a pot with a closed bottom, and a plurality of rows of combustion holes 21 penetrating the side wall of the burner 20 are arranged on the side of the burner 20, and the adjacent two rows of combustion holes 21 are separated by a convex rib 22, so that the premixed gas entering from the gas inlet 11 can enter the inside of the burner 20 for combustion from each row of combustion holes 21 through the gap 40, and the independent combustion of each row of combustion holes 21 is realized.

[0027] Referring to Figure 3 , the convex ribs 22 are distributed in an array on the side wall of the burner 20, and the length direction of the convex ribs 22 is consistent with the length direction of the burner 20, so that the cross section of the burner 20 is in the shape of a gear.

[0028] In the embodiment, a step 12 is arranged in the furnace body 10, the burner 20 is provided with a flange or a folded edge 23, and the burner 20 is supported on the step 12 through the flange or the folded edge 23, so that the burner 20 is suspended in the cavity 30.

[0029] Alternatively, the height of the convex rib 22 gradually decreases from top to bottom, so that the curved surface where the outer side of the convex rib 22 is located is a conical surface, the maximum diameter of the burner 20 is greater than the inner diameter of the furnace body 10, and the minimum diameter of the burner 20 is less than the inner diameter of the furnace body 10, so that the convex rib 22 of the burner 20 can abut against the inner wall of the furnace body 10, thereby suspending the burner 20 in the cavity 30.

[0030] In addition, the furnace head 100 of the embodiment further comprises a cover 50 covering the upper part of the burner 20 to seal the gap between the burner 20 and the furnace body 10 and prevent sundries such as oil, water and vegetable residue from entering the gap to block the combustion holes 21.

[0031] In addition, the upper end surface of the burner 20 is provided with a circle of auxiliary combustion holes 24, each of which corresponds to a row of the combustion holes 21, and the inner diameter of the cover 50 is greater than the radius of the circle where the auxiliary combustion holes 24 are located, so that the auxiliary combustion holes 24 can be exposed. The auxiliary combustion holes 24 also communicate with the above-mentioned cavity 30, so that a circle of flames can be added at the auxiliary combustion holes 24 to increase the power of the furnace head.

[0032] In order to facilitate the connection with the gas premixing device, the air inlet 11 is provided with an internal thread 111. Of course, in other embodiments, the air inlet 11 can also be provided with an external thread, and the gas premixing device is correspondingly provided with an internal thread.

[0033] The embodiment further provides a constant light ignition device 60 beside the furnace body 10 for igniting the gas at the burner 20, which has an air inlet pipe 61 connected with a gas pipeline and an air inlet pipe 62 connected with a pressurized air inlet pipe, or directly connected with the gas premixing device by a pipe to use premixed gas as fuel.

[0034] In summary, compared with the burners of the same type of gas equipment in the prior art, the burner of the utility model has the following advantages:

[0035] 1. The burner of the utility model is pot-shaped with a closed bottom, no combustion holes are arranged at the bottom, and only the side surface is provided with combustion holes, so that the phenomenon of blocked bottom combustion holes does not occur, and the anti-blocking effect can be achieved.

[0036] 2. The burner of the utility model is provided with rows of combustion holes, and each combustion hole is exposed, so that the processing is convenient and the cost is low.

[0037] 3. After the furnace head of the utility model adopts the above-mentioned burner, the gas is burned at each combustion hole, and the combustion of each row of combustion holes is independent and does not affect each other, so that multi-hole and independent combustion is achieved, and the backfire phenomenon does not occur easily, so that the safety performance of the product is high.

[0038] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0039] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model.

Claims

1. A porous independent combustion safety burner head, comprising a furnace body and a burner disposed within the furnace body, characterized in that: The furnace body has a cavity, and the burner is disposed in the cavity, with gaps between the bottom and sides of the burner and the furnace body. The bottom of the furnace body is also provided with an air inlet for inputting premixed gas, and the air inlet is connected to the cavity. The burner is a bowl-shaped structure with a closed bottom, and its side is provided with several rows of combustion holes penetrating the side wall of the burner. Adjacent rows of combustion holes are separated by a convex ridge, so that the premixed gas entering from the air inlet can pass through the gap and enter the burner from each row of combustion holes for combustion, realizing independent combustion of each row of combustion holes.

2. The porous independent combustion safety burner head as described in claim 1, characterized in that: The protruding ridges are arranged in an array on the side wall of the burner, and the length direction of the protruding ridges is consistent with the length direction of the burner.

3. The porous independent combustion safety burner head as described in claim 1, characterized in that: The furnace body is provided with a step, and the burner is provided with a flange. The burner is supported on the step by the flange, so that the burner is suspended in the cavity.

4. The porous independent combustion safety burner head as described in claim 1, characterized in that: The height of the convex ridge gradually decreases from top to bottom, and the burner is adapted to be suspended in the cavity by the convex ridge.

5. The porous independent combustion safety burner head as described in claim 3 or 4, characterized in that: It also includes a cover that covers the top of the burner to seal the gap between the burner and the furnace body.

6. The porous independent combustion safety burner head as described in claim 5, characterized in that: The upper surface of the burner is provided with a ring of auxiliary combustion holes, and each auxiliary combustion hole corresponds to a row of combustion holes.

7. The porous independent combustion safety burner head as described in claim 6, characterized in that: The inner diameter of the cover is larger than the radius of the circle containing the auxiliary combustion holes, so that all the auxiliary combustion holes can be exposed.

8. The porous independent combustion safety burner head as described in claim 1, characterized in that: The air inlet is provided with threads suitable for connection with a gas premixing device.

9. The porous independent combustion safety burner head as described in claim 1, characterized in that: A constant-fire ignition device is provided on the side of the furnace body. The constant-fire ignition device has an air inlet pipe connected to the gas pipeline and an air inlet pipe connected to the pressurized air.

10. The porous independent combustion safety burner head as described in claim 8, characterized in that: A constant flame ignition device is provided on the side of the furnace body, and the constant flame ignition device is connected to the gas premixing device.

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