CN110864290A

CN110864290A - Stove burner

Info

Publication number: CN110864290A
Application number: CN201910954463.4A
Authority: CN
Inventors: 邵海忠; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-03-06
Anticipated expiration: 2039-10-09
Also published as: CN110864290B

Abstract

The invention relates to a stove burner, which comprises a base body, a gas mixing part and an injection part, wherein the gas mixing part and the injection part are connected and horizontally arranged; the gas mixing part is annular and internally provided with a gas mixing chamber, and fire holes communicated with the gas mixing chamber are formed in the inner annular surface and the outer annular surface of the gas mixing part along the circumferential direction; the injection part extends outwards from the gas mixing part, an injection cavity communicated with the gas mixing chamber is arranged in the injection part in a penetrating manner, and an injection inlet is formed at the outer end of the injection part by the injection cavity; the nozzle is arranged at an injection inlet of the injection part; and the ignition needle is fixed on the base body, and the discharge end of the ignition needle is close to the fire hole. This cooking utensils combustor structure can simplify by a wide margin to can avoid the gas mixture moving direction to change and the collision resistance who receives on guaranteeing longer penetrating distance's basis, and then improve and draw the ability of penetrating, can also realize simultaneously that secondary air's abundant supply just can not receive the nozzle and draw and penetrate the influence.

Description

Stove burner

Technical Field

The invention relates to the technical field of cooking utensils, in particular to a gas burner.

Background

The existing stove burner mainly adopts two types of upper air inlet and lower air inlet.

For example, the burner disclosed in the patent of "an upper air intake energy-saving burner" of the chinese utility model with the publication number of CN2771661Y (application number of 200520056580.2) is an upper air intake type stove burner. Go up the cooking utensils combustor of air inlet because mounted position and space are effective, lead to drawing and penetrate a tub length limited, have influenced its greatly and penetrated the mixing homogeneity of ability and gas mixture, the nozzle in this type of combustor is located the fire lid of panel top in addition, causes the jam of nozzle easily, and secondly the nozzle is heated the influence and also can be more serious. Of course, this type of burner has the advantage that the opening and closing of the cabinet door is not easily extinguished in the case of a small fire.

A chinese utility model patent with publication number CN204127962U (application number 201420516750.X) 'a burner fire cover for a gas cooker and a burner using the fire cover', wherein the burner disclosed therein is a cooker burner with a lower air intake type. The injection pipe and the nozzle of the stove burner with lower air inlet are arranged below the panel, horizontal injection is basically adopted, and the injected mixed gas finally moves upwards through the injection pipe and reaches the fire cover after passing through the gas mixing chamber. Therefore, the stove burner is high in injection capacity, but the stove burner is multiple in parts, complex in mounting structure and complex in mounting. And because the current stove combustor of lower air inlet adopts horizontal injection basically, the gas mixture passes through the vertical upward movement of injection pipe and covers this kind of air current flow direction of fire, and the gas mixture has a process that changes the direction of motion in the middle of promptly, at the in-process that the gas mixture turned to, can have collision resistance to the gas mixture, has caused certain influence to the injection ability of combustor.

In addition, the stove burner with the two types of the upper air inlet and the lower air inlet has a common fault that secondary air is poor in supply to the inner ring, the upper air inlet type stove burner can basically arrange the nozzle of the outer ring in the outer area of the liquid containing disc in order to make up for the length of the outer ring injection pipe, the secondary air is basically injected and consumed by the nozzle of the outer ring, and only a part of the secondary air enters the inner ring from the outer area of the liquid containing disc. The lower air inlet type stove burner is characterized in that the air mixing chamber is a channel for the mixed air to move upwards to the fire cover and a channel for supplying external secondary air to the inner ring, so that the area of the secondary air entering the kidney-shaped hole is always limited.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a stove burner aiming at the prior art, the structure is greatly simplified, the collision resistance caused by the change of the moving direction of the mixed gas can be avoided on the basis of ensuring a longer injection distance, the injection capacity is further improved, meanwhile, the sufficient supply of secondary air can be realized, and the secondary air cannot be influenced by the injection of a nozzle.

The second technical problem to be solved by the present invention is to provide a stove burner capable of fully utilizing combustion heat and improving thermal efficiency of the burner, aiming at the above prior art.

The third technical problem to be solved by the present invention is to provide a stove burner that can effectively guide the overflow liquid and prevent the overflow liquid from blocking the fire hole, aiming at the above prior art.

The fourth technical problem to be solved by the present invention is to provide a stove burner capable of avoiding the contamination of the ignition needle in view of the above prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a cooking utensils combustor which characterized in that: comprises that

The base body is provided with a gas mixing part and an injection part which are connected and horizontally arranged;

the gas mixing part is annular and is internally provided with a gas mixing chamber, and fire holes communicated with the gas mixing chamber are formed in the inner annular surface and the outer annular surface of the gas mixing part along the circumferential direction;

the injection part extends outwards from the gas mixing part, an injection cavity communicated with the gas mixing chamber is arranged in the injection part in a penetrating manner, and an injection inlet is formed at the outer end of the injection part by the injection cavity;

the nozzle is arranged at an injection inlet of the injection part;

and the ignition needle is fixed on the base body, and the discharge end of the ignition needle is close to the fire hole.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the pot support is characterized by further comprising an annular pot support which is supported on the gas mixing portion, a gas flow channel is arranged in the pot support, gas inlet holes communicated with the gas flow channel are formed in the inner annular wall of the pot support along the circumferential direction, and gas outlet holes communicated with the gas flow channel are further formed in the outer annular side of the pot support.

In order to ensure that enough space is reserved between the pot support and the gas mixing part and further ensure secondary air supply to the fire hole of the inner ring, the pot support extends downwards to be provided with support legs for supporting on the upper surface of the gas mixing part, cavities communicated with the airflow channel are formed in the support legs, and the air outlet holes are formed in the outer side walls of the support legs and are communicated with the cavities.

In order to ensure the stability of the pot support above the gas mixing part, the upper surface of the gas mixing part is provided with a limit boss corresponding to each support leg, and the cavity in each support leg is opened downwards and can be buckled on the limit boss in a matching way.

In order to avoid the overflow liquid entering the air inlet hole to block the air inlet hole, the air inlet hole is gradually inclined upwards from inside to outside along the radial direction.

The technical scheme adopted by the invention for solving the third technical problem is as follows: a diversion trench is arranged on the upper surface of the gas mixing part, a diversion gap capable of downwards diverting overflowing liquid is arranged at the joint of the gas mixing part and the injection part, and the diversion gap is communicated with the diversion trench;

the inner ring edge and the outer ring edge of the pot support are both positioned above the diversion trench.

In order to further protect the air inlet and avoid overflowing liquid from entering the air inlet to block the air inlet, an edge capable of covering the air inlet is arranged on the pot support along the circumferential direction, the edge of the inner ring of the upper surface of the pot support extends in a radial inward and downward bending mode, and the inner edge of the edge is located above the flow guide groove.

In order to avoid the overflow liquid flowing into the diversion trench from accumulating to pollute and block the fire transfer trench, a connecting boss which can extend to the fire hole positions on the inner ring surface and the outer ring surface of the gas mixing part is arranged in the diversion trench, and the boss is provided with the fire transfer trench.

In order to improve the protection of the ignition needle, the ignition needle is fixedly arranged on the injection part and is covered by the injection part from the upper part, and the discharge end of the ignition needle extends to the position of a fire hole close to the inner ring of the gas mixing part from the connecting position of the gas mixing part and the injection part.

In order to reduce the gas velocity of the mixed gas injected by the nozzle, the mixed gas is favorable for stable combustion without flame separation and ignition and fire protection, a baffle plate is arranged between an inlet of the mixed gas chamber and a fire hole close to a discharge end of an ignition needle in the mixed gas chamber, and a small hole is formed in the baffle plate.

Optionally, the gas mixing part and the injection part of the base body are integrally connected or separately connected.

For the convenience of structural installation, the base body comprises an upper shell and a lower shell which can be buckled with each other.

In order to provide more sufficient secondary air supply for the fire hole of the inner ring, the lower surface of the air mixing part is connected with at least three pillars which are arranged at intervals, and the base body is supported and arranged on the mounting panel through the pillars.

Compared with the prior art, the invention has the advantages that: according to the stove burner, the gas mixing part and the injection part are horizontally connected, so that the structure is very simple, the number of structural parts is greatly reduced, the complexity of installation is greatly reduced, and the stove burner is more convenient to install. And the ejection path of the mixed gas with the structure does not change the direction, the mixed gas is directly ejected into the gas mixing chamber through a straight path, the gas flow resistance is small, and the ejection capacity is strong. And the portion of drawing in this structure draws the portion and draws the setting of the cooking utensils combustor of air inlet type under the reference, draws the path length to the nozzle is kept away from the fire hole, places the jam of nozzle, and the radiating effect is good simultaneously. In addition, the secondary air supplementary channel does not need to occupy the space of the gas mixing chamber, the secondary air of the fire hole of the inner ring can be supplemented from the upper part and the lower part of the gas mixing part in an all-round way, the secondary air supplement is sufficient, and the combustion efficiency is improved.

Drawings

Fig. 1 is a perspective view of a cooker burner in an embodiment of the invention.

Fig. 2 is a perspective view of another angle of the cooker burner in the embodiment of the invention.

Fig. 3 is an exploded perspective view of a cooker burner in an embodiment of the invention.

Fig. 4 is a sectional view of a cooktop burner in an embodiment of the invention.

Fig. 5 is a cross-sectional view of another cross-section of a cooktop burner in an embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 5, the stove burner in the present embodiment includes a base 1, a nozzle 2, an ignition needle 3, and a pot holder 4.

Wherein base member 1 has the gas portion 11 and the portion 12 of penetrating that thoughtlessly link and the level setting, according to the structure needs, the gas portion 11 that thoughtlessly links of base member 1 and the portion 12 body coupling or the components of a whole that can function independently of penetrating, when base member 1 mix gas portion 11 and penetrate portion 12 body coupling, simple structure, simple to operate, and behind the leakproofness of structure. And the gas mixing part 11 and the injection part 12 which are connected in a split way are used, so that the packaging volume can be reduced during packaging, and the transportation is convenient.

The base body 1 in this embodiment adopts the gas mixing portion 11 and the injection portion 12 which are integrally provided. In order to provide more sufficient secondary air supply for the fire holes 112 on the inner annular surface of the air mixing part 11, at least three struts 7 are connected to the lower surface of the air mixing part 11, the base 1 is supported and arranged on the mounting panel 8 through the struts 7, and the struts 7 enable the air mixing part 11 and the mounting panel 8 to have enough space for supplying secondary air to the fire holes 112 on the inner annular surface of the air mixing part 11, so that the combustion efficiency is improved.

As shown in fig. 3, for the convenience of assembly, the base 1 includes an upper casing 101 and a lower casing 102 that can be engaged with each other, and a space for gas to flow, that is, a gas mixing chamber 111 and an injection chamber 121, described below, is provided between the upper casing 101 and the lower casing 102.

As shown in fig. 4 and 5, the air mixing portion 11 is annular and has an air mixing chamber 111 inside, and the air mixing chamber 111 matches the shape of the air mixing portion 11, that is, the air mixing chamber 111 is annular. The fire holes 112 communicated with the gas mixing chamber 111 are formed in the inner ring surface and the outer ring surface of the gas mixing portion 11 along the circumferential direction, and the fire holes 112 can be arranged close to the inner ring surface and the upper portion of the outer ring surface of the gas mixing portion 11 in the embodiment, so that combustion flame can be better applied to a pot.

The injection part 12 extends outwards from the gas mixing part 11, an injection cavity 121 communicated with the gas mixing chamber 111 is arranged in the injection part 12 in a penetrating mode, and an injection inlet is formed in the outer end of the injection part 12 of the injection cavity 121. The nozzle 2 is provided at an injection inlet of the injection portion 12.

In this embodiment, this draw portion 12 and extend radially outwards from the outer annular surface of gas portion 11 that mixes, the condition that the mixed gas that the portion 12 that avoids drawing of this increase draws the portion of drawing draws the injection entering takes place the change of flow direction, has improved the ejection ability of this cooking utensils combustor. Meanwhile, the structure enables the nozzle 2 to be far away from the fire hole 112 on the gas mixing part 11, so that the blockage of overflowing liquid generated in the cooking process is avoided, the heat dissipation of the nozzle 2 is accelerated, and the heat dissipation effect of the nozzle 2 is better. In addition, since the nozzle 2 is far from the fire hole 112, the secondary air supply is not affected. Of course, the extending direction of the injection part 12 may be specifically set as required.

The pan support 4 is ring-shaped and supported on the upper surface of the gas mixing part 11 by the support legs 5. The supporting legs 5 are provided with at least three and are connected to the lower surface of the pot support 4 along the circumferential direction of the pot support 4 at intervals and extend downwards, so that enough space is provided between the pot support 4 and the air mixing part 11 to realize the supply of secondary air to the fire holes 112 on the inner ring. In order to ensure the stability of the pot support 4 installed above the gas mixing part 11, a limit boss 6 is arranged on the upper surface of the gas mixing part 11 corresponding to each support leg 5, a cavity 51 is arranged in each support leg 5 and is opened downwards, and the support legs 5 can be matched and buckled on the limit bosses 6 through the openings.

The upper surface of the gas mixing part 11 is provided with a flow guide groove 113, the joint of the gas mixing part 11 and the injection part 12 is provided with a flow guide notch 122 capable of guiding overflow liquid downwards, the flow guide notch 122 is communicated with the flow guide groove 113, and the flow guide notch 122 in the embodiment is arranged on two sides of the connecting part of the injection part 12 and the gas mixing part 11. The inner ring edge and the outer ring edge of the pot support 4 are both positioned above the diversion trench 113, the corresponding limit boss 6 is arranged in the diversion trench 113, and the radial width of the limit boss 6 is smaller than that of the diversion trench 113, so that the diversion trench 113 can be communicated for diversion. When the stove burner works, if the condition of overflowing occurs, the overflowing liquid flows on the pot support 4 and flows down along the inner ring wall and the outer ring wall of the pot support 4 respectively, and then drops in the diversion groove 113, flows out through the diversion notch 122 under the diversion effect of the diversion groove 113, and avoids the blockage of the upper fire hole 112 of the gas mixing part 11.

In order to avoid the overflow liquid flowing into the guiding groove 113 from accumulating to pollute and block the fire transfer groove 115, a connecting boss 114 which can extend to the fire holes 112 on the inner ring surface and the outer ring surface of the gas mixing part 11 is arranged in the guiding groove 113, namely, the guiding groove 113 becomes an arc-shaped groove with the radian less than 360 degrees by the boss, and the fire transfer groove 115 is arranged on the boss to realize the fire transfer between the fire holes 112 on the inner ring surface and the outer ring surface.

The pot support 4 is internally provided with an air flow channel 41, and the pot support 4 is annular, so the air flow channel 41 in the pot support 4 is also in a penetrating annular shape. The air flow channel 41 communicates with the cavity 51 in the foot 5. An air inlet hole 42 communicated with the air flow channel 41 is arranged on the inner annular wall of the pot support 4 along the circumferential direction. A pot is placed on the pot support 4, and when the burner works, smoke generated by combustion can enter the airflow channel 41 in the pot support 4 through the air inlet 42, the smoke can fully heat the whole pot support 4 when entering the airflow channel 41, the preheating utilization rate is improved, and the heat efficiency of the burner of the stove is further improved.

The air inlet holes 42 are gradually inclined upward from inside to outside in the radial direction, so that the overflow entering the air inlet holes 42 and blocking the air inlet holes 42 can be avoided. In order to further protect the air inlet hole 42 and prevent overflowing liquid from entering the air inlet hole 42 to block the air inlet hole 42, a blocking brim 44 capable of covering the air inlet hole 42 is arranged on the pan support 4 along the circumferential direction, the blocking brim 44 extends from the inner ring edge of the upper surface of the pan support 4 in a radial inward and downward bending manner, and the inner edge of the blocking brim 44 is positioned above the flow guide groove 113. Thus, a hollow groove-shaped structure with a downward opening is formed between the blocking brim 44 and the inner annular wall of the pot support 4 provided with the air inlet hole 42. The overflowing liquid left by the inner ring wall of the pan support 4 can flow into the flow guide groove 113 through the guiding function of the blocking edge 44 and then be guided out, and the overflowing liquid is difficult to flow into the air inlet hole 42 because of the empty groove-shaped structure between the blocking edge 44 and the inner ring wall of the pan support 4. In order to avoid the influence of the blocking eaves 44 on the air intake of the air intake holes 42, holes or gaps are correspondingly formed on the blocking eaves 44 along the air intake holes 42 so as to facilitate the smooth air intake of the air intake holes 42.

The outer ring side of the pan support 4 is further provided with an air outlet hole 43 communicated with the air flow channel 41, the air outlet hole 43 in this embodiment is positioned on the support leg 5, and the air inlet hole 42 and the air outlet hole 43 are communicated with the cavity 51 in the support leg 5 through the air flow channel 41 communicated with each other. The flue gas entering the air flow channel 41 is discharged from the air outlet 43 after heat exchange. The air outlet hole 43 in this embodiment is opened on the outer side wall of the leg 5 and communicates with the cavity.

The ignition needle 3 is fixed to the base body 1, and the discharge end of the ignition needle 3 is close to the fire hole 112. In order to improve the protection of the ignition needle 3, the ignition needle 3 is fixedly installed on the injection part 12 and is covered by the injection part 12 from the upper part, and the discharge end of the ignition needle 3 extends from the connection position of the gas mixing part 11 and the injection part 12 to the position of a fire hole 112 close to the inner ring of the gas mixing part 11. Therefore, the ignition needle 3 can be basically covered by the base body 1, the pollution of overflowing liquid to the ignition needle 3 is avoided, and the working reliability of the ignition needle 3 is ensured.

In addition, a baffle 116 is provided in the gas mixing chamber 111 between the inlet of the gas mixing chamber 111 and the fire hole 112 near the discharge end of the ignition needle 3, and the baffle 116 has a small hole 117. The resistance action of the baffle 116 on the mixed gas injected into the gas mixing chamber 111 reduces the gas velocity of the mixed gas injected by the nozzle 2, is favorable for combustion stability and flame resistance, and is favorable for ignition and fire protection.

The stove burner disclosed by the invention combines the advantages of the upper air inlet type stove burner and the lower air inlet type stove burner, and simultaneously avoids the defects of the upper air inlet type stove burner and the lower air inlet type stove burner, so that the structure is simpler, and the injection capability and the combustion efficiency are improved.

Claims

1. A cooking utensils combustor which characterized in that: comprises that

The base body (1) is provided with a gas mixing part (11) and an injection part (12) which are connected and horizontally arranged;

the gas mixing part (11) is annular, a gas mixing chamber (111) is arranged in the gas mixing part, and fire holes (112) communicated with the gas mixing chamber (111) are formed in the inner annular surface and the outer annular surface of the gas mixing part (11) along the circumferential direction;

the injection part (12) extends outwards from the gas mixing part (11), an injection cavity (121) communicated with the gas mixing chamber (111) is arranged in the injection part (12) in a penetrating manner, and an injection inlet is formed at the outer end of the injection part (12) by the injection cavity (121);

the nozzle (2) is arranged at an injection inlet of the injection part (12);

the ignition needle (3) is fixed on the base body (1), and the discharge end of the ignition needle (3) is close to the fire hole (112).

2. The cooktop burner of claim 1, wherein: the boiler is characterized by further comprising an annular boiler support (4) arranged on the gas mixing portion (11) in a supporting mode, a gas flow channel (41) is arranged in the boiler support (4), a gas inlet hole (42) communicated with the gas flow channel (41) is formed in the inner annular wall of the boiler support (4) along the circumferential direction, and a gas outlet hole (43) communicated with the gas flow channel (41) is further formed in the outer annular side of the boiler support (4).

3. The cooktop burner of claim 2, wherein: the pot support (4) extends downwards to be provided with a support leg (5) used for supporting the upper surface of the gas mixing part (11), a cavity (51) communicated with the gas flow channel (41) is formed in the support leg (5), and the gas outlet hole (43) is formed in the outer side wall of the support leg (5) and communicated with the cavity (51).

4. The cooktop burner of claim 3, wherein: the upper surface of the gas mixing part (11) is provided with a limiting boss (6) corresponding to each support leg (5), and a cavity in each support leg (5) is opened downwards and can be buckled on the limiting boss (6) in a matching manner.

5. The cooktop burner of claim 2, wherein: the air inlet holes (42) are gradually inclined upwards from inside to outside along the radial direction.

6. The cooktop burner of any of claims 2 to 5, wherein: a flow guide groove (113) is formed in the upper surface of the gas mixing part (11), a flow guide notch (122) capable of guiding overflow liquid downwards is formed in the joint of the gas mixing part (11) and the injection part (12), and the flow guide notch (122) is communicated with the flow guide groove (113);

the inner ring edge and the outer ring edge of the pot support (4) are both positioned above the diversion trench (113).

7. The cooktop burner of claim 6, wherein: the pot support (4) is circumferentially provided with a blocking eave (44) capable of covering the air inlet hole (42), the blocking eave (44) radially extends inwards and bends downwards from the edge of an inner ring of the upper surface of the pot support (4), and the inner edge of the blocking eave (44) is positioned above the flow guide groove (113).

8. The cooktop burner of claim 6, wherein: and the guide groove (113) is internally provided with a connecting boss (114) which can extend to the fire holes (112) on the inner ring surface and the outer ring surface of the gas mixing part (11), and the boss is provided with a fire transmission groove (115).

9. The cooktop burner of any of claims 1 to 5, wherein: the ignition needle (3) is fixedly installed on the injection part (12) and covered by the injection part (12) from the upper part, and the discharge end of the ignition needle (3) extends to the position close to a fire hole (112) of an inner ring of the gas mixing part (11) from the connecting position of the gas mixing part (11) and the injection part (12).

10. The cooktop burner of claim 9, wherein: a baffle plate (116) is arranged between an inlet of the gas mixing chamber (111) and a fire hole (112) close to a discharge end of the ignition needle (3) in the gas mixing chamber (111), and small holes (117) are formed in the baffle plate (116).

11. The cooktop burner of any of claims 1 to 5, wherein: the gas mixing part (11) and the injection part (12) of the base body (1) are integrally connected or separately connected.

12. The cooktop burner of any of claims 1 to 5, wherein: the base body (1) comprises an upper shell (101) and a lower shell (102) which can be buckled with each other.

13. The cooktop burner of any of claims 1 to 5, wherein: the lower surface of the gas mixing part (11) is connected with at least three pillars (7) arranged at intervals, and the base body (1) is supported and arranged on the installation panel (8) through the pillars (7).