CN206695132U - A kind of burner fire lid, burner and gas-cooker - Google Patents

Abstract

The utility model relates to a burner fire cover, a burner and a gas stove. A fire cover seat is installed on the burner head. A fire cover is installed on the fire cover seat. There is a through hole in the center of the cover base and the burner head, and an anti-dry sensor is installed in the through hole. An inner ring cavity and an outer ring cavity are arranged on the burner cover base. The inner ring cavity is arranged in a ring around the through hole, and the burner head The gas outlet of the gas outlet is connected with the inner ring cavity, the fire outlet groove is connected with the outer ring cavity, the inner ring cavity and the outer ring cavity are connected through a connecting channel, and the longitudinal section of the fire outlet groove is square. The utility model not only has a simple overall structure, is easy to disassemble and clean, but also is more conducive to the full mixing of gas, so that the flame is more uniform, the combustion is more complete, and the combustion effect is better.

Description

Burner fire cover, burner and gas stove

technical field

The utility model relates to a gas stove, in particular to a single-ring burner installed on the gas stove and having the function of preventing dry burning, and at the same time relates to a burner fire cover installed on the burner.

Background technique

The existing single-ring fire combustion system, as shown in Figure 1, generally uses two parts, the burner head 1 and the fire cover 2, to realize combustion. The gas and primary air pass through the cavity of the burner head 1 and are directly mixed in the cavity. Combustion through the fire outlet 3 of the fire cover 2, because the gas and air are mixed unevenly, the gas outlet pressure of each fire outlet 3 is different, resulting in poor flame shape, insufficient combustion, and uneven flames. Moreover, the fire outlet grooves 3 on the traditional burner are all circular holes. After a long time of use, carbon deposits are easy to occur, and it is very troublesome to clean up.

In addition, in order to be able to detect the temperature of the bottom of the pot in real time and realize the anti-dry function, some existing burners install a temperature-sensing probe on the burner. At present, a temperature-sensing probe is generally installed on a double-ring burner, such as Chinese patent number 200710145761.6 The patent disclosed a double-ring combustion system for preventing dry burning, including a burner, a fire cover seat is installed on the burner, the outer ring fire cover is installed on the fire cover seat, and the inner ring fire cover is directly installed on the burner. There is a through hole at the center of the inner ring fire cover and the burner, and an anti-dry temperature sensor is installed in the through hole. The structure of the annular support seat is to supply gas to the outer ring mixing chamber and the inner ring mixing chamber respectively, which makes its structure complex, the volume of the burner is large, and the shape is relatively cumbersome, and the traditional burner structure needs to be greatly modified. change.

Utility model content

The main technical problem to be solved by the utility model is to provide a burner fire cover that is easy to clean and has a good combustion effect.

Another main technical problem to be solved by the utility model is to provide a burner with simple structure, good combustion effect and anti-dry burning function, and to provide a gas stove equipped with the burner.

In order to achieve the above object, the technical solution of the utility model is:

A burner fire cover is provided with several fire outlet grooves and fire stabilization grooves on the fire cover, and the vertical section of the fire outlet grooves is square.

In order to achieve the above object, another technical solution of the utility model is:

A burner fire cover is provided with several fire outlet grooves and fire stabilization grooves on the fire cover, and the fire stabilization grooves are square chambers with inlets and outlets.

Further, the width of the entrance of the fire stabilizing groove is smaller than the width of the exit.

Further, one or more fire stabilizing grooves are arranged between two adjacent fire outlet grooves.

Another technical scheme of the utility model is:

A burner, comprising a burner head, a fire cover seat is installed on the burner head, a fire cover is installed on the fire cover seat, a fire outlet is arranged on the fire cover, and the fire cover, fire cover seat and furnace There is a through hole in the center of the head, and an anti-dry burning sensor is installed in the through hole, and an inner ring cavity and an outer ring cavity are arranged on the fire cover seat, and the inner ring cavity is annular around the through hole It is provided that the gas outlet of the burner head communicates with the inner ring cavity, the fire outlet groove communicates with the outer ring cavity, and the inner ring cavity and the outer ring cavity communicate through a connecting channel.

Further, a plurality of connecting passages are evenly arranged along the circumferential direction, and there are air flow passages between the connecting passages.

Further, an upwardly protruding positioning pin is provided above the inner ring cavity of the fire cover seat, and a concave positioning groove matching the positioning pin is provided on the fire cover.

Further, the fire outlet groove is opened on the side wall of the fire cover, and the longitudinal section of the fire outlet groove is square.

Further, a fire stabilizing groove is also provided on the side wall of the fire cover, and the fire stabilizing groove is a square chamber with an inlet and an outlet, and the outlet is located below the fire outlet groove.

Further, the fire stabilizing groove is arranged between two adjacent fire outlet grooves, the outlet of the fire stabilizing groove is opened on the bottom wall of the chamber, and there is a hole for gas to flow out between the outlet and the upper surface of the fire cover seat. void.

Furthermore, the gap between the fire stabilizing groove and the fire cover seat extends in a continuous ring along the circumferential direction of the fire cover side wall.

Another technical scheme of the utility model is:

A gas stove is equipped with the above-mentioned burner.

To sum up, compared with the prior art, the burner fire cover, burner and gas stove provided by the utility model have the following advantages:

(1) Through a reasonable structural design on the single-ring burner, an anti-dry sensor is installed to realize the anti-dry function. The overall structure is simple and easy to disassemble and clean.

(2) By setting the fire cover seat between the fire cover and the furnace head, and setting the inner ring cavity and the outer ring cavity on the fire cover seat, the fire cover seat is used to buffer the air flow, and at the same time, the gas passes through two Combustion occurs after the chamber is mixed, which makes the gas mix more uniform, and the gas pressure of each fire outlet can be the same, the flame is uniform and the shape is good, the combustion is more complete, and the combustion effect is better.

(3) The fire outlet groove on the fire cover of the utility model adopts a square design, the guide length of the air flow in the fire outlet groove is lengthened, and the cross-sectional area of the fire outlet groove is increased, which not only increases the airflow flow rate, balances the gas pressure, and makes the flame more stable. It is not easy to deposit carbon in the fire outlet, and it is especially easy to clean.

(4) By setting the fire stabilizing groove on the fire cover, and designing the fire stabilizing groove into a square structure with a small entrance and a large exit, the fire stabilizing effect is better, and the burning effect of the flame is further guaranteed.

Description of drawings

Fig. 1 is the structural representation of prior art single ring burner;

Fig. 2 is a structural exploded view of a single-ring burner of the present invention;

Fig. 3 is the structure exploded diagram 2 of the utility model single-ring burner;

Fig. 4 is a schematic structural view of the utility model single-ring burner;

Fig. 5 is the top view of the structure of the single-ring burner structure of the present invention after the fire cover is removed;

Fig. 6 is a cross-sectional view of the structure of the single-ring burner of the present invention.

As shown in Figures 1 to 6, the burner head 1, the fire cover 2, the fire outlet 3, the fire cover seat 4, the inner ring cavity 4a, the outer ring cavity 4b, the through hole 5, the anti-dry burning sensor 6, the gas outlet 7, Boss 8, protruding block 9, ignition pin 10, thermocouple 11, connecting channel 12, air flow channel 13, upper cover plate 14, mounting platform 15, gap 16, positioning pin 17, positioning groove 18, fire stabilizing groove 19, Mixing chamber 20, ring platform 21.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figure 2 to Figure 4, a burner provided by the utility model is a single-ring burner, including a burner head 1, a fire cover 2 and a fire cover seat 4, and the fire cover seat 4 is plugged and installed on the burner head 1 On, the fire cover 2 is plugged and installed on the fire cover seat 4, and a circle of fire outlet grooves 3 is set on the side wall outside the fire cover 2, and the combustion gas is burned after being ejected by several fire outlet grooves 3. There is a through hole 5 in the center of the fire cover 2 , the fire cover seat 4 and the burner 1 , and the anti-dry burning sensor 6 is fixed through the through hole 5 . The bottom of the anti-dry sensor 6 is fixedly installed on the burner 1 through a fixed structure such as a bracket, and can also be fixedly installed on the bottom shell of the gas range as required. The top of the anti-dry sensor 6 is used to detect the temperature at the bottom of the cooker to The burner is automatically turned on and off according to the temperature at the bottom of the cooker.

The top of the burner 1 is provided with a gas outlet 7, and the gas outlet 7 adopts an annular structure and is surrounded by two circles of bosses 8 protruding upward. The ignition needle 10 and the thermocouple 11 are fixed on the top of the burner 1 and located on both sides of the gas outlet 7 . At the center of the annular gas outlet 7 there is a through hole 5 for passing through the anti-dry sensor 6, and the gas outlet 7 and the through hole 5 are mutually isolated and sealed to prevent gas from entering the middle through hole 5. Gas flows out from the annular gas outlet 7 at the top of the burner head 1 and enters the fire cover seat 4 .

As shown in Figures 2 to 6, an inner annular cavity 4a and an outer annular cavity 4b are arranged on the fire cover seat 4, the inner annular cavity 4a is arranged in a ring around the through hole 5, and the gas outlet 7 of the burner 1 is connected to the inner annular cavity 4a, and the inner ring cavity 4a and the outer ring cavity 4b are connected through the connecting channel 12. A plurality of connecting passages 12 are evenly arranged along the circumferential direction. In this embodiment, three connecting passages 12 are preferably provided, and three air flow passages 13 are formed between the connecting passages 12 .

Both the inner ring cavity 4a and the connecting channel 12 have an upper cover plate 14 to form a closed space at the top, and the upper cover plate 14 is fixed on the fire cover seat 4 by screws, after the gas flow ejected from the gas outlet 7 enters the inner ring cavity 4a, Blocked by the upper cover plate 14, the upper cover plate 14 acts as a buffer for the airflow, slows down the velocity of the airflow, stabilizes the pressure, and fully mixes the gas in the inner ring cavity 4a. The gas entering the inner ring cavity 4a enters the outer ring cavity 4b of the outer ring through three connecting passages 12, and finally sprays out from the fire outlet 3 to ignite and burn, so that the gas pressure at each fire outlet 3 is the same, and the gas outlet Stable, can avoid the phenomenon of leaving the flame, the flame has a good uniform shape, and the combustion is more complete. The gas is combusted after being mixed in the two chambers, the gas is mixed more fully and the combustion effect is better.

The fire cover seat 4 is fixedly connected to the gas outlet 7 at the top of the burner 1 by plugging, and a side sealing structure is formed between the fire cover seat 4 and the gas outlet 7 . In this embodiment, there is a downwardly protruding annular mounting platform 15 on the lower surface of the fire cover seat 4, which cooperates with the upwardly protruding boss 8 on the upper surface of the burner 1, and the mounting platform 15 is inserted downward into the gas outlet. The outside of the boss 8 of 7 forms a side-sealed structure, and by rationally designing the height of the mounting platform 15, a certain gap 16 is left between the fire cover seat 4 and the upper surface of the burner 1 after installation, and the gap 16 is used for Air circulation, the gap 16 communicates with the air passage 13 on the fire cover seat 4, the air enters from the gap 16, enters the fire cover 2 through the three air passages 13 on the fire cover seat 4, and flows out from the fire cover 2 upwards .

The air flow channel 13 is evenly arranged along the circumferential direction between the outer ring cavity 4b and the inner ring cavity 4a, which is beneficial to the air circulation. some buffering.

As shown in Figure 3 and Figure 6, a burner fire cover provided by the utility model has a downwardly protruding annular platform 21 at the center of the lower surface of the fire cover 2, and the annular platform 21 encircles the central through hole 5 , After installation, the ring platform 21 is against the upper cover plate 14 of the fire cover seat 4 . There is an annular mixing chamber 20 on the periphery of the fire cover 2 , and the mixing chamber 20 communicates with the outer ring chamber 4 b on the fire cover seat 4 . The mixing chamber 20 is surrounded by a downwardly protruding annular outer side wall and an inner side wall, and the fire outlet 3 is opened on the outer side wall of the mixing chamber 20 . After installation, the outer side wall and the inner side wall of the fire cover 2 respectively abut against the inner side wall and the outer side wall of the outer ring cavity 4b of the fire cover seat 4 .

In this embodiment, several fire outlet grooves 3 are evenly arranged along the outer side wall of the fire cover 2, and the longitudinal section (referring to the cross section in the vertical direction) of the fire outlet groove 3 is square, and preferably rectangular. The outer side wall of the fire cover 2 has a certain thickness and height, so that the fire outlet 3 has a certain height and depth. For a common burner, the depth of the fire outlet is between 3-5mm. The depth of the fire outlet 3 in the present embodiment is It can reach more than 7mm, so that the guide length of the airflow in the fire outlet 3 is lengthened, and the cross-sectional area of the fire outlet 3 is increased, so that the air flow is increased, the flame will be more stable, and the firepower is also greater, which is especially suitable for Chinese food cooking. The fire outlet 3 adopts a square hole structure with a large cross-sectional area, which is not easy to deposit carbon in the fire outlet 3 and is particularly easy to clean.

As shown in Fig. 3 and Fig. 6, a fire stabilizing groove 19 is also provided on the outer side wall of the fire cover 2. In the present embodiment, the fire stabilizing groove 19 is a chamber with an inlet and an outlet. One or more external stabilizing fire grooves 19 are set between the fire outlet grooves 3 . Wherein, the width of stabilizing fire groove 19 inlets is less than the width of outlet, and stabilizing fire groove 19 preferably adopts the chamber of square, like this, after the combustion gas in the mixing chamber 20 enters into stabilizing groove 19 from smaller entrance, the square chamber It can buffer the airflow, so that the airflow can be more fully mixed in the fire stabilization groove 19, and finally flow out from the outlet with a larger diameter, so that the speed of the airflow ejected from the fire stabilization groove 19 is slowed down, and the airflow is more stable. The flame stabilization effect is better, which further ensures the burning effect of the flame.

In this embodiment, the inlet of the fire stabilizing groove 19 is arranged on the side wall of the chamber, the inlet communicates with the mixing chamber 20, and the outlet can be opened on the other side wall of the chamber, as shown in Figure 3 and Figure 6 As shown, the outlet is arranged on the bottom wall of the chamber, and preferably the bottom wall of the chamber is an open structure, and the open part is the outlet of the fire stabilizing groove 19 to ensure the fire stabilizing effect. The outlet of stabilizing fire groove 19 has the space that gas flows out after installation and the upper surface of fire cover seat 4, and the space is positioned at the below of fire outlet groove 3, and the gas that flows out from outlet is subjected to the stop of fire cover seat 4 below, and the speed Slow down further, gas flows out from the gap on one side, and the gap can be discontinuously arranged along the circumferential direction of the fire cover 2. The circumferential extension of the wall is a continuous ring, that is, a continuous ring-shaped steady fire flame is formed under the fire outlet 3. This continuous steady fire flame and the flame formed by the fire outlet 3 form a tooth-shaped flame shape together, which can be more It can better ensure the stability of the flame and improve the combustion effect of the flame. The gap between the outlet of the fire-stabilizing groove 19 and the fire cover seat 4 can utilize the lower surface of the fire-stabilizing groove 19 (i.e. the lower surface of the outer side wall of the fire cover 2) to be designed as a slope and form, by controlling the angle of inclination Control the air output of the fire-stabilizing groove 19, and then control the size of the fire-stabilizing flame.

As shown in Figures 2 and 3, in this embodiment, an upwardly protruding positioning pin 17 is provided on the fire cover seat 4, and the positioning pin 17 is arranged on the upper cover plate 14 above the inner ring cavity 4a. 2 is provided with a concave positioning groove 18 that cooperates with the positioning pin 17. The positioning groove 18 is arranged on the annular platform 21 that forms the central through hole 5 of the fire cover 2. When installing, just insert the positioning pin groove 18 on the positioning pin 17. The fixed connection between the fire cover 2 and the fire cover seat 4 can be realized. On the outer edge of the fire cover 2, a protruding block 9 is protruded outwardly, and the protruding block 9 is arranged directly above the ignition pin 10. The ignition pin 10 discharges on the protruding block 9 of the fire cover 2, by setting a hidden positioning The pin 17 and the positioning groove 18 position the ignition cover 2, which can ensure that the ignition needle 10 can be accurately aimed at the protruding block 9 to discharge, thereby improving the ignition rate.

The working process of the burner is described in detail below:

As shown in Figure 2, the gas enters the burner 1 through the injection pipe, flows out from the gas outlet 7 on the top of the burner 1 and enters the inner ring cavity 4a of the fire cover seat 4, and then passes through the three burners after fully mixing the inner ring cavity 4a. The connecting channel 12 enters the outer ring chamber 4b, and is mixed again in the outer ring chamber 4b and the mixing chamber 20, and finally burns out from the fire outlet groove 3 and the fire stabilization groove 19. Simultaneously, air flows into the burner by the gap 16 between the fire cover seat 4 and the burner 1, enters the space above the upper cover plate 14 through the air flow channel 13, and flows out through the top of the fire cover 2 again.

The utility model guides the gas of the burner head 1 to the inner ring cavity 4a in the center of the burner seat 4 by setting the inner ring cavity 4a and the outer ring cavity 4b in the fire cover seat 4, and then the gas is discharged by the inner ring cavity 4a. sent to the outer ring cavity 4b, and further sent to the mixing chamber 20 of the fire cover 2, without significantly increasing the structure of the burner 1, the volume of the burner 1 is smaller, and the overall structure of the burner is simpler and more compact , At the same time, it will not hinder the installation of the anti-dry sensor 6 in the center of the burner. The gas is mixed in the inner ring cavity 4a and the outer ring cavity 4b successively, so that the mixing is more uniform and sufficient, and the gas pressure is also stabilized during continuous buffering, so the combustion effect will be better, the flame will be uniform, and the combustion will be more complete.

At the same time, the burner 1, the fire cover seat 4 and the fire cover 2 in the utility model all adopt a plug-in structure, which can be disassembled arbitrarily, which is convenient for the user to perform daily cleaning and sanitation, and is also conducive to after-sales maintenance. Serve.

The utility model utilizes the fire cover 2, the fire cover seat 4 and the through-hole 5 in the center of the furnace head 1 to install the anti-dry burning sensor 6, which provides sufficient installation space for the installation of the sensor and makes the installation and maintenance very convenient. On the other hand, Due to the convection of hot and cold air in the through hole 5, the anti-dry sensor 6 can also be cooled by convection during combustion, which is beneficial to improve the service life of the anti-dry sensor 6.

The utility model also provides a gas cooker, which includes a casing, a panel, the above-mentioned burner, a gas valve, a control switch, a fan, etc., and a support frame for supporting the pot body is installed on the panel.

As mentioned above, a similar technical solution can be derived in combination with the content of the solution given in the accompanying drawings. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the scope of the technical solution of the utility model.

Claims (12)

1. A burner fire cover is provided with several fire outlet grooves and stable fire grooves on the fire cover, characterized in that: the longitudinal section of the fire outlet grooves is square. 2. A burner fire cover, which is provided with several fire outlet grooves and fire stabilization grooves, characterized in that: the fire stabilization grooves are square chambers with inlets and outlets. 3. The burner fire cap according to claim 2, characterized in that: the width of the entrance of the fire stabilizing groove is smaller than the width of the exit. 4. The burner fire cap according to claim 2 or 3, characterized in that one or more fire stabilizing grooves are arranged between two adjacent fire outlet grooves. 5. A burner, comprising a burner, characterized in that: a fire cover seat is installed on the burner cover, a fire cover is installed on the fire cover seat, a fire outlet is provided on the fire cover, and a fire cover is installed on the fire cover There is a through hole in the center of the fire cover seat and the burner head, and an anti-dry burning sensor is installed in the through hole, and an inner ring cavity and an outer ring cavity are arranged on the fire cover seat, and the inner ring cavity surrounds the The through hole is arranged in a ring shape, the gas outlet of the burner is connected to the inner ring cavity, the fire outlet groove is connected to the outer ring cavity, and the inner ring cavity and the outer ring cavity are connected through a connecting channel. 6 . The burner according to claim 5 , wherein a plurality of connecting passages are evenly arranged along the circumferential direction, and there are air flow passages between the connecting passages. 6 . 7. A burner according to claim 5, characterized in that: an upwardly protruding positioning pin is provided above the inner ring cavity of the fire cover seat, and a positioning pin corresponding to the positioning pin is provided on the fire cover. Matching concave positioning groove. 8. A burner according to claim 5, characterized in that: the fire outlet groove is opened on the side wall of the fire cover, and the longitudinal section of the fire outlet groove is square. 9. A burner according to claim 5, characterized in that: a fire stabilizing groove is also arranged on the side wall of the fire cover, and the fire stabilizing groove is a square chamber with an inlet and an outlet, the The outlet is located below the fire outlet. 10. A burner according to claim 9, characterized in that: the fire stabilizing groove is arranged between two adjacent fire outlet grooves, and the outlet of the fire stabilizing groove is opened on the bottom wall of the chamber , There is a space for gas to flow out between the outlet and the upper surface of the fire cover seat. 11. A burner according to claim 10, characterized in that: the gap between the fire stabilizing groove and the fire cover seat extends along the circumferential direction of the fire cover side wall in a continuous ring shape. 12. A gas stove, characterized in that the burner according to any one of claims 5-11 is installed.