Anti-blocking furnace end fire cover and combustor

Abstract

The anti-blocking furnace end fire cover comprises a fire cover body and fire outlet hole sets, the fire outlet hole sets are arranged on the top surface, the outer side or the inner side of the fire cover body, and the fire outlet hole sets are distributed in the circumferential direction of the fire cover body. The fire outlet hole group comprises at least one fire outlet hole, and the fire outlet hole is annular or arc-shaped; the fire cover body is provided with an isolation structure for preventing flames from being in contact with a pot support. The anti-blocking furnace end fire cover and the burner are not prone to being blocked and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to an anti-blocking burner cap and a burner. Background Art

[0002] A gas stove refers to a kitchen appliance that directly heats with gaseous fuels such as liquefied petroleum gas, artificial gas, and natural gas, and a burner is a component of the gas stove.

[0003] According to the prior art, there is an outer burner cap with a flame stabilizing groove, and the publication number is CN204693418U. An outer burner cap gas chamber is provided in the outer burner cap; a main fire outlet ring is fixedly arranged along the circumferential direction on the periphery of the outer burner cap, and the main fire outlet ring is located below the top of the outer burner cap; a plurality of main fire holes are provided along the circumferential direction on the periphery of the main fire outlet ring, and the main fire holes are communicated with the outer burner cap gas chamber; an annular main flame stabilizing groove is provided along the circumference on the periphery of the main fire outlet ring, and the main flame stabilizing groove is communicated with the outer burner cap gas chamber. Since the main fire holes are all small holes, during long-term use, due to reasons such as overflowing of the pot, splashing of oil-water mixture, etc., it is more likely to cause blockage of the main fire holes, resulting in backfire and flying fire phenomena, and the reliability is poor. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the above defects of the prior art and provide an anti-blocking burner cap and a burner that are not easily blocked and have high reliability.

[0005] In order to achieve the above object, the technical solution of the utility model is: an anti-blocking burner cap, including a burner cap body and a group of fire holes,

[0006] The group of fire holes is arranged on the top surface, the outer side or the inner side of the burner cap body, and the group of fire holes is distributed along the circumferential direction of the burner cap body;

[0007] The group of fire holes includes at least one fire hole, and the fire hole is annular or arc-shaped;

[0008] An isolation structure for preventing the flame from contacting the pot support is provided on the burner cap body.

[0009] After adopting the above structure, the utility model has the following advantages compared with the prior art: a group of fire holes is arranged on the burner cap body, the group of fire holes includes at least one fire hole, and the fire hole is annular or arc-shaped, so that the fire outlet area is greatly increased, the combustion is sufficient, the thermal efficiency is high, and the large fire outlet area makes the air pressure in the burner cap body become low, and no flying fire phenomenon will occur; and it has a large opening area, which helps to reduce impurities such as food residues and grease in the fire holes, is not easily blocked, and has high reliability; in addition, an isolation structure is provided on the burner cap body to prevent the flame in the fire holes from baking the pot support, is not easily generated with smoke, and has a low carbon monoxide content, and has high reliability.

[0010] Preferably, when the number of the flame outlets is one, the flame outlet is annular, and the isolation structure includes a plurality of stay bars. The stay bars are arranged inside, outside or on the inner side of the flame outlet. The flame outlet is arranged to be annular, so that the opening area is large, the combustion is more sufficient, the thermal efficiency is high, and the stay bars are used to block the flame outlet, so that the flame will not bake the pot support.

[0011] Preferably, the stay bars correspond to the feet of the pot support one by one, and the stay bars are arranged towards the feet of the pot support. The number and position of the stay bars correspond to those of the pot support, so that one stay bar blocks one foot, without occupying space and with a simple structure.

[0012] Preferably, the fire cap body includes an upper cover and an annular plate located below the upper cover. The flame outlet is formed by the gap between the bottom surface of the upper cover and the upper surface of the annular plate. The stay bars connect the upper cover and the annular plate together. The fire cap body is divided into an upper cover and an annular plate, so that the annular flame outlet is directly formed by the bottom surface of the upper cover and the upper surface of the annular plate, without the need to additionally process the flame outlet on the fire cap body, with a simple structure, and the stay bars are used for support and connection, ensuring a large flame outlet area of the flame outlet while ensuring the height.

[0013] Preferably, the stay bars, the upper cover and the annular plate are an integral body. The stay bars, the upper cover and the annular plate form an integral body, so that the overall strength is greatly improved, and it is also convenient for manufacturing.

[0014] Preferably, when the number of the flame outlets is two or more, the flame outlets are arc-shaped, and there is a spacing between adjacent flame outlets. The spacing is the isolation structure. On the premise of ensuring a large flame outlet area of the flame outlets, the mixed gas in the flame outlets is shunted, and the original large mass of flame is separated into multiple small masses of flame, increasing the contact area between the flame and the secondary air and effectively reducing the flue gas.

[0015] Preferably, it further includes a flame stabilizing groove. The flame stabilizing groove is arranged on the top surface, outside or inside of the fire cap body, and has the effects of stabilizing the flame and transmitting the flame.

[0016] A burner includes a flame-proof blockage furnace head fire cap according to any one of the above. Description of the Drawings

[0017] Figure 1 is a perspective view of a flame-proof blockage furnace head fire cap of the present invention from an angle.

[0018] Figure 2 is Figure 1 an enlarged schematic view of A in

[0019] Figure 3 is a perspective view of a flame-proof blockage furnace head fire cap of the present invention from another angle.

[0020] Among them, 1. Fire cover body, 110. Upper cover, 120. Annular plate, 2. Group of fire holes, 210. Fire hole, 3. Stay bar, 4. Threaded through hole, 5. Flame stabilizing groove, 6. Gas cavity, 7. Pilot hole, 8. Air hole. Detailed implementation mode

[0021] The present utility model will be further described below in conjunction with the attached drawings and the detailed implementation mode.

[0022] As Figure 1 shown, the present utility model provides a clogging-proof stove head fire cover, which includes a fire cover body 1 and a group of fire holes 2. The group of fire holes 2 includes at least one fire hole 210, and the group of fire holes 2 is arranged on the fire cover body 1. The fire cover body 1 is annular, and the group of fire holes 2 can be arranged on the outer side surface, the top surface or the inner side surface of the fire cover body 1. A gas cavity 6 is arranged inside the fire cover body 1, and a pilot hole 7 is arranged on the outer surface of the fire cover body 1. The gas cavity 6 communicates with the pilot hole 7 and the group of fire holes 2. Generally, the fire cover body 1 is installed on the stove head, and the flame on the stove head sequentially passes through the pilot hole 7 and the gas cavity 6 and burns at the fire hole 210. Specifically, the fire hole 210 is arc-shaped or annular, and an isolation structure for preventing the flame from baking the pot support is arranged on the fire cover body 1. Since the fire hole 210 is arranged in an arc shape or an annular shape, compared with a plurality of small round-hole-shaped fire holes, the fire outlet area is large, the combustion is sufficient, the thermal efficiency is high, and it has a large opening area, which helps to reduce impurities such as food residues and grease in the fire holes, is not easy to be blocked, and has high reliability; if the round-hole-shaped fire holes are too small, the firepower is insufficient, and if the round-hole-shaped fire holes are too large, flashback is likely to occur; at the same time, due to the large fire holes and a lot of air, blasting is likely to occur. However, for the arc-shaped or annular fire hole 210 of the present utility model, the width of the fire hole 210 is small and flashback will not occur, and even if there is a lot of air, blasting will not occur, and the combustion effect is good; in addition, an isolation structure is arranged on the fire cover body 1 to prevent the flame in the fire hole 210 from baking the pot support, so that smoke is not easily generated and the carbon monoxide content is low, and the reliability is high.

[0023] The group of fire holes 2 can be arranged on the outer side surface, the top surface or the inner side surface of the fire cover body 1. Taking the group of fire holes 2 arranged on the outer side surface of the fire cover body 1 as an example.

[0024] Embodiment 1

[0025] As Figure 1 and 2, when the number of the fire outlet holes 210 is one, the fire outlet hole 210 is annular, and the isolation structure includes a plurality of stay bars 3. The stay bars 3 are arranged outside, inside the fire outlet hole 210 or in the fire outlet hole 210 to prevent the flame in the fire outlet hole 210 from baking the pot support. Specifically, the stay bars 3 correspond to the foot pieces of the pot support one by one, and the stay bars 3 are installed towards the foot pieces of the pot support. That is to say, the number and position of the stay bars 3 correspond to the pot support, so that one stay bar 3 blocks one foot piece. Specifically, the stay bars 3 are arranged on the inner side wall of the burner body 1 and inside the fire outlet hole 210, hidden in the burner body 1, and do not occupy space.

[0026] As an embodiment, such as Figure 3 , the burner body 1 includes an upper cover 110 and an annular plate 120. The upper cover 110 is a ring-shaped structure, and the upper cover 110 is located above the annular plate 120. The annular fire outlet hole 210 is formed by the area between the bottom surface of the upper cover 110 and the upper surface of the annular plate 120. The stay bars 3 are used to connect the upper cover 110 and the annular plate 120 together. There is no need to additionally process the fire outlet hole 210 on the burner body 1, the structure is simple, and the stay bars 3 are used for support and connection, greatly increasing the fire outlet area of the fire outlet hole 210 while ensuring the height. Specifically, the stay bars 3, the upper cover 110 and the annular plate 120 are an integral body, which is convenient for overall manufacturing and has a low cost.

[0027] Embodiment Two

[0028] When the number of the fire outlet holes 210 is multiple, the fire outlet holes 210 are arc-shaped, and there is a spacing between adjacent fire outlet holes 210. The spacing is the outer side wall of the burner body 1, which is also the isolation structure. The outer side wall of the burner body 1 is used to block the flame to prevent the flame from baking the pot support. On the premise of ensuring a large fire outlet area of the fire outlet holes 210, the mixed gas in the fire outlet holes 210 is shunted, and the original large mass of flame is separated into multiple small masses of flame, increasing the contact area between the flame and the secondary air and effectively reducing the flue gas. Specifically, the center of the circle corresponding to the arc of the fire outlet hole 210 is located on the axis of the burner body 1. That is to say, multiple fire outlet holes 210 are arranged along the circumferential direction of the burner body 1 and distributed along the circumferential direction of the burner body 1. That is to say, multiple fire outlet holes 210 form a ring, and there is a spacing between adjacent two fire outlet holes 210, which are separated from each other.

[0029] It further includes a flame stabilizing groove 5. The flame stabilizing groove 5 can be arranged on the outer side surface, the top surface or the inner side surface of the burner body 1. The flame stabilizing groove 5 is used to enhance the stability and combustion efficiency of the flame, thereby improving the performance of the gas stove. It not only improves the thermal efficiency of the gas stove, but also reduces the emission of waste gas.

[0030] As an embodiment, such as Figure 2An annular channel is provided on the bottom surface of the fire cover body 1, and the annular channel is the air cavity 6. The fire hole group 2 and the flame stabilizing groove 5 are both arranged on the outer surface. The fire hole group 2 is located above the flame stabilizing groove 5. At the same time, an air outlet hole 8 connected to the flame stabilizing groove 5 is provided on the inner wall of the air cavity 6. There are multiple air outlet holes 8 and they are distributed along the circumferential direction of the fire cover body 1.

[0031] Specifically, when the fire hole group 2 is arranged on the outer side of the fire cover body 1, the flame stabilizing groove 5 can be arranged on one of the outer side, top surface, and inner side of the fire cover body 1; when the fire hole group 2 is arranged on the inner side of the fire cover body 1, the flame stabilizing groove 5 can be arranged on one of the outer side, top surface, and inner side of the fire cover body 1; when the fire hole group 2 is arranged on the top surface of the fire cover body 1, the flame stabilizing groove 5 can be arranged on one of the outer side, top surface, and inner side of the fire cover body 1. The number of the fire hole group 2 and the flame stabilizing groove 5 is not limited, and can be one or more. Furthermore, when the fire hole group 2 and the flame stabilizing groove 5 are located on the same surface of the fire cover body 1, there is no restriction on the relative positions of the fire hole group 2 and the flame stabilizing groove 5, that is, when the fire hole group 2 and the flame stabilizing groove 5 are both located on the outer side surface or the inner side surface, the fire hole group 2 can be located above the flame stabilizing groove 5 or below the flame stabilizing groove 5; when the fire hole group 2 and the flame stabilizing groove 5 are both located on the top surface, the fire hole group 2 can be located at the outer end of the flame stabilizing groove 5 or at the inner end of the flame stabilizing groove 5.

[0032] A burner includes a burner head, a pot support and a fire cover body 1. The fire cover body 1 is mounted on the burner head base by bolts. Specifically, a threaded through hole 4 is provided on the upper surface of the fire cover body 1. The fire cover body 1 is screwed to the burner head base by bolts passing through the threaded through hole 4. The annular pot support is mounted on the outer circumference of the burner head. The fire cover body 1 can also be integrated with the burner head. Specifically, the threaded through hole 4 is provided on the upper cover 110, and the threaded through hole 4 passes through the air cavity 6.

[0033] Specifically, the principle of the utility model is to set a fire hole group 2 on the fire cover body 1, and the fire hole group 2 includes at least one fire hole 210. The fire hole 210 is annular or arc-shaped, so that the fire area is greatly increased, the combustion is sufficient, the thermal efficiency is high, and it has a large opening area, which helps to reduce food residues, grease and other impurities in the fire hole, is not easy to be blocked, and has high reliability; in addition, an isolation structure is set on the fire cover body 1 to prevent the flame in the fire hole 210 from baking the pot bracket, which is not easy to generate smoke, has a low carbon monoxide content, and has high reliability. Due to the large opening area of the fire hole 210, some impurities in the fire hole 210 can be removed by the combustion of the flame, which plays a self-cleaning role.

[0034] The fire hole 210 is arc-shaped or ring-shaped. While ensuring a large fire area and plenty of air, the fire hole 210 has a small width so that flashback will not occur. At the same time, since there will be no flashback, there will be no backfire in the case of plenty of air, and there is no need to additionally adjust the air door of the burner to eliminate flashback and backfire.

[0035] Operation process: Take the example where the flame outlet hole group 2 and the flame stabilizing groove 5 are both provided on the outer side surface, the flame outlet hole group 2 is located above the flame stabilizing groove 5, and the number of the flame outlet holes 210 is one. The flame generated by the burner head burns at the flame outlet holes 210 after passing through the ignition holes 7 and the air chamber 6 in sequence. At the same time, the flame also burns at the flame stabilizing groove 5 after passing through the ignition holes 7, the air chamber 6 and the air outlet holes 8 in sequence, greatly increasing the flame outlet area, ensuring sufficient combustion, high thermal efficiency, and having a large opening area, which helps to reduce impurities such as food residues and grease at the flame outlet holes, is not easily blocked, and has high reliability; due to the large opening area of the flame outlet holes 210, part of the impurities in the flame outlet holes 210 can be removed through the combustion of the flame, playing a self-cleaning role; the reinforcing rib 6 is provided on the inner side wall of the air chamber 6 and the reinforcing rib 6 is located inside the flame outlet holes 210, and the reinforcing rib 6 is distributed along the circumferential direction of the air chamber 6, preventing the flame in the flame outlet holes 210 from baking the pot support, not easily generating fumes, having a low carbon monoxide content, and high reliability.

[0036] The reinforcing rib 6 is located outside the flame outlet holes 210, that is, outside the burner cap body 1, blocking the flame from coming out of the flame outlet holes 6 to bake the pot support; the reinforcing rib 6 is located inside the flame outlet holes 210, that is, inside the burner cap body 1, blocking the flame from entering the flame outlet holes 6 to bake the pot support.

[0037] On the basis of the above solution, if various modifications or deformations to the present invention do not depart from the spirit and scope of the present invention, and provided that these modifications and deformations fall within the scope of the claims of the present invention and equivalent technical scope, then the present invention also intends to include these modifications and deformations.

Claims

1. A clog - proof burner head fire cover, comprising a fire cover body (1) and a fire outlet hole group (2), characterized in that: The fire outlet hole group (2) is arranged on the top surface, the outer side or the inner side of the fire cover body (1), and the fire outlet hole group (2) is distributed along the circumferential direction of the fire cover body (1); The fire outlet hole group (2) includes at least one fire outlet hole (210), and the fire outlet hole (210) is annular or arc - shaped; An isolation structure for preventing the flame from contacting the pot support is provided on the fire cover body (1).

2. The anti-clogging burner cap according to claim 1, characterized in that: When the number of the fire outlet holes (210) is one, the fire outlet hole (210) is annular, and the isolation structure includes a plurality of ribs (3), and the ribs (3) are arranged inside the fire outlet hole (210), outside the fire outlet hole (210) or inside the fire outlet hole (210).

3. The anti-clogging burner cap according to claim 2, wherein: The ribs (3) correspond to the foot pieces of the pot support one by one, and the ribs (3) are arranged towards the foot pieces of the pot support.

4. The anti-clogging burner head fire cover according to claim 2, wherein: The fire cover body (1) includes an upper cover (110) and an annular plate (120) located below the upper cover (110), the fire outlet holes are formed by the gap between the bottom surface of the upper cover (110) and the upper surface of the annular plate (120), and the ribs (3) connect the upper cover (110) and the annular plate (120) together.

5. The anti-clogging burner head fire cover according to claim 4, characterized in that: The ribs (3), the upper cover (110) and the annular plate (120) are an integral body.

6. The anti-clogging burner head fire cap according to claim 1, characterized in that: When the number of the fire outlet holes (210) is two or more, the fire outlet holes (210) are arc - shaped, and there is a spacing between adjacent fire outlet holes (210), and the spacing is the isolation structure.

7. The anti-clogging burner cap according to claim 1, characterized in that: It further includes a flame - stabilizing groove (5), and the flame - stabilizing groove (5) is arranged on the top surface, the outer side or the inner side of the fire cover body (1).

8. A burner, characterized in that: It includes a clog - proof burner head fire cover according to any one of claims 1 - 7.

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