CN116293671A - Burner for gas stove - Google Patents

Abstract

The invention relates to a burner for a gas stove, which comprises a burner body, wherein a first diversion channel for diversion of overflows is formed between a first gas pipe and the pipe wall of a first gas guide pipe, and a second diversion channel for diversion of overflows is formed between a second gas pipe and the pipe wall of a second gas guide pipe: the burner body is provided with the independently arranged gas chamber and the flame stabilizing chamber below the gas chamber, so that the flame stabilizing structure can be automatically adjusted according to the combustion working condition of the gas chamber without being influenced by the gas chamber.

Description

Burner for gas stove

Technical Field

The invention relates to the field of household gas stoves, in particular to a burner suitable for a combustion stove.

Background

Flame stabilization is always the research and development focus of a gas burner, the existing burner controls the intensity of a fire hole by relying on a fire cover fire hole, tempering is avoided by arranging the flame stabilization hole, but the general hole diameter of the fire hole is larger, the gas outlet speed is still too fast, and the flame is stabilized only by the mode of the flame stabilization hole, so that a good flame stabilizing effect is still not achieved; or under the condition of blocking the flame stabilizing holes, the flame stabilizing effect is poor.

The burner for gas range comprises a base, an inner ring fire cover and an outer ring fire cover, wherein the inner ring fire cover and the outer ring fire cover are connected to the base, a central gas mixing chamber is formed by the inner wall of the top surface of the inner ring fire cover and the annular peripheral wall, a plurality of inner ring fire holes communicated with the external central gas mixing chamber are formed in the annular peripheral wall of the inner ring fire cover, an outer ring gas mixing chamber is formed by the inner wall of the top surface of the outer ring fire cover and the annular peripheral wall, a plurality of main fire holes are formed in the annular peripheral wall of the outer ring fire cover, a central gas channel communicated with the central gas mixing chamber and an outer ring gas channel communicated with the outer ring gas mixing chamber are formed in the base, the burner is characterized in that a vertical annular partition plate is further arranged on the base, the partition plate divides the outer ring gas mixing chamber into a gas mixing chamber located on the inner side and a buffer chamber located on the outer side, gaps communicated with the gas mixing chamber and the buffer chamber are formed between the upper end edge of the partition plate and the inner surface of the outer ring fire cover, the gas channel is communicated with the gas mixing chamber, the gas channel is not designed to control the central gas mixing chamber, and the flame is further improved in a flame stabilizing mode, and the flame stabilizing intensity of the burner is improved by the flame stabilizing mode.

Disclosure of Invention

The invention aims to solve the technical problem of providing a burner for a gas stove, which can realize better flame stabilization and can prevent overflow.

The technical scheme adopted for solving the technical problems is as follows: this a combustor for gas-cooker, including the combustor body, its characterized in that: the burner body is provided with a gas chamber and a flame stabilizing chamber positioned below the gas chamber, the gas chamber and the flame stabilizing chamber are respectively connected with a first gas pipe and a second gas pipe, the cross sections of the first gas pipe and the second gas pipe are gradually narrowed from top to bottom, a first gas guide pipe is detachably inserted into the gas inlet end of the first gas pipe, a second gas guide pipe is detachably inserted into the gas inlet end of the second gas pipe, a first flow guide channel for guiding overflows is formed between the pipe walls of the first gas pipe and the first gas guide pipe in a state that the burner body drives the first gas guide pipe and the second gas guide pipe to move downwards relative to an external power source, a second flow guide channel for guiding overflows is formed between the pipe walls of the second gas pipe and the second gas guide pipe, correspondingly, a second flow guide port for guiding overflows to the second flow guide channel is arranged in the flame stabilizing chamber, and a switch piece capable of closing the second flow guide port and an elastic piece capable of always blocking the switch piece; the gas chamber is also internally provided with a buffer part which can buffer the gas flowing out of the first gas pipe, and a first diversion port which is used for diversion of the overflow liquid to a first diversion channel is arranged side by side with the buffer part.

In a state that the burner body moves upwards relative to the first air duct and the second air duct (namely, the burner body is in cooking), the first air duct, the first gas duct and the second gas duct are in a sealing state, preferably, a first embedded ring is arranged on the peripheral wall of a pipe orifice of the first air duct, a first sealing ring is embedded in the first embedded ring, and in a state that the burner body moves upwards, the first sealing ring seals the first diversion channel; correspondingly, a second embedded ring is arranged on the peripheral wall of the pipe orifice of the second air duct, a second sealing ring is embedded in the second embedded ring, and the second sealing ring seals the second flow guide channel when the burner body is in an upward moving state. After the cooking is finished, the burner body moves downwards relative to the first air guide pipe and the second air guide pipe, and the cross sections of the first gas pipe and the second gas pipe are gradually narrowed from top to bottom, at this time, a first flow guide channel formed between the pipe walls of the first gas pipe and the first air guide pipe is opened, and a second flow guide channel formed between the pipe walls of the second gas pipe and the second air guide pipe is opened, so that overflows flowing into the gas chamber and the flame stabilizing chamber in the flow guide cooking process through the first flow guide port and the second flow guide port.

In order to facilitate the formation of the flame stabilizing chamber, the gas chamber, and the connection between the flame stabilizing chamber and the gas chamber and the base, the preferred mode is that the flame stabilizing chamber is formed by the butt joint of the base and the gas seat covered on the opening of the base, the opening of the gas seat is also opened and covered with a cover plate and is butt joint together to form the gas chamber, wherein the base is provided with a first communication port corresponding to the first gas pipe and a second communication port corresponding to the second gas pipe, and the base is inserted and matched between the first gas pipe and the second gas pipe by means of a spacing part between the first communication port and the second communication port. The flame stabilizing chamber is formed by the butt joint of the base and the gas seat, so that the processing is simpler, and meanwhile, the first gas pipe and the second gas pipe are inserted and connected by utilizing the spacing part of the base, so that the connection is more convenient.

In order to realize that the gas chamber and the flame stabilizing chamber of the burner body are arranged up and down, from the viewpoint of realizing the structure, preferably, the base is provided with a convex ring which surrounds the first communication port and the spacing part, the bottom of the gas chamber is provided with a first diversion port communicated with the area surrounded by the convex ring, and the gas chamber is placed on the convex ring of the base through the port wall of the first diversion port.

In order to achieve a slow flow of the fuel gas in the fuel gas chamber and thereby promote a degree of mixing of the fuel gas and the primary air, preferably, the buffer portion is provided on a wall of the flow port, the buffer portion is plate-shaped and can at least partially shield the first communication port, and an opening, which is not shielded by the first conduction port, is in fluid communication with the first communication port. After the gas and the primary air flow out from the first gas pipe and are blocked by the buffer part, the gas and the primary air can only flow out from the opening which is not covered by the circulating port, so that the length of the gas path can be prolonged, the air flow speed can be reduced, and the flame separation can be avoided on the premise of improving the mixing degree of the gas and the primary air.

In order to prevent the overflow liquid generated during the cooking process from flowing into the gas chamber and flowing into the first gas pipe to block the nozzle arranged at the gas inlet of the first gas pipe, the partition part is preferably provided with a baffle wall protruding from the upper surface of the base to block the overflow liquid from flowing into the first gas pipe.

In order to enable the switch member to block the diversion opening and to enable the connection of the elastic member, preferably, the switch member includes an upper end portion having a larger upper end blocking surface, a lower end portion having a smaller lower end blocking surface, and a rod portion connecting between the upper end portion and the lower end portion, the lower end portion is capable of blocking the diversion opening, one end of the elastic member is connected to the upper end portion, and the other end of the elastic member is connected to the base. Under the normal and natural state, the lower end part of the switch piece seals the guide opening, and the elastic piece is in a natural extension state to prop against the upper end part of the switch piece; when more overflows exist in the flame stabilizing chamber, the elastic piece is forced to be compressed, the lower end part of the switch piece moves downwards so that the diversion opening is exposed, and thus the overflows can be diverted to the inner wall of the second gas pipe through the diversion opening, and the phenomenon that the flame stabilizing structure in the flame stabilizing chamber is blocked can be reduced when the overflows move downwards along the inner wall of the second gas pipe; in addition, when more overflows exist in the gas chamber, the overflows can be blocked by the blocking wall protruding out of the upper surface of the base in the partition part, and the overflows blocked by the blocking wall and the position lower than the gas chamber are caused by the arrangement of the convex ring in the base and cannot enter the flame stabilizing chamber, so that the small overflows can be evaporated by using combustion heat generated in the combustion process; and the big overflow liquid can also descend along the inner wall of the first gas pipe to reduce the fire outlet structure in the blocked gas chamber.

In order to realize better ignition function and fire protection function of the burner, preferably, the section of the gas seat is in a C shape, the end parts of the two ends of the C shape of the gas seat are provided with notch parts, and the notch parts are provided with ignition holes corresponding to the ignition needles and/or fire protection holes corresponding to the thermocouples.

In view of simple processing, the fire outlet structure in the gas chamber is preferably provided with at least two fire outlet holes along the circumferential direction of the gas seat.

In order to achieve the flame stabilizing effect and the anti-overflow effect, it is preferable that the gas seat is provided with flame stabilizing slits under each fire outlet, which are only communicated with the flame stabilizing chamber.

Compared with the prior art, the invention has the advantages that: the burner body is provided with the independently arranged gas chamber and the flame stabilizing chamber below the gas chamber, so that the flame stabilizing structure can be automatically adjusted according to the combustion working condition of the gas chamber without being influenced by the gas chamber.

Drawings

FIG. 1 is a schematic view of a burner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of a gas seat according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of a base structure according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the burner body of FIG. 1 in a state in which the burner body is driven to move downward by an external power source relative to the first air duct and the second air duct;

fig. 7 is a cross-sectional view of the burner body of fig. 1 in a state in which the burner body is driven to move upward relative to the first air duct and the second air duct by an external power source.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 7, is a preferred embodiment of the present invention. The burner body 1 of the embodiment is provided with a gas chamber 11 and a flame stabilizing chamber 12 positioned below the gas chamber 11, the gas chamber 11 and the flame stabilizing chamber 12 are respectively connected with a first gas pipe 3 and a second gas pipe 4 with the cross sections gradually narrowed from top to bottom, the gas inlet end of the first gas pipe 3 is detachably inserted with a first gas guide pipe 50, the gas inlet end of the second gas pipe 4 is detachably inserted with a second gas guide pipe 60, a first flow guide channel 70 for guiding the overflows is formed between the pipe walls of the first gas pipe 3 and the first gas guide pipe 50 in a state that the burner body 1 drives the burner body to move downwards relative to the first gas guide pipe 50 and the second gas guide pipe 60 by an external power source, a second flow guide channel 80 for guiding the overflows is formed between the pipe walls of the second gas pipe 3 and the second gas guide pipe 60, correspondingly, a second flow guide opening 6 for guiding the overflows to the second flow guide channel 80 is arranged in the flame stabilizing chamber 12 and adjacent to the second gas pipe 4, and a switch piece 7 capable of closing the second flow guide opening 7 and a switch piece 7 capable of sealing the flow guide piece 8 all the time is arranged on the second flow guide opening 6; the gas chamber 11 is further provided with a buffer part 5 for buffering the gas flowing out of the first gas pipe 3, and a first diversion port 110 for diversion of the overflow to the first diversion channel is arranged side by side with the buffer part 5.

The peripheral wall of the orifice of the first air duct 50 is provided with a first embedded ring 501, a first sealing ring 502 is embedded in the first embedded ring 501, and the first sealing ring 502 seals the first flow guide channel 70 when the burner body 1 is in an upward moving state; correspondingly, a second embedded ring 601 is arranged on the peripheral wall of the pipe orifice of the second air duct 60, and a second sealing ring 602 is embedded in the second embedded ring 601, and the second sealing ring 602 seals the second air guide channel 80 when the burner body 1 is in an upward moving state. In a state that the burner body 1 moves upwards relative to the first air duct 50 and the second air duct 60 (namely, the burner body is in cooking), the first air duct 50, the first gas duct 3 and the second gas duct 60 and the second gas duct 4 are in a sealing state, a first embedded ring 501 is arranged on the peripheral wall of the pipe orifice of the first air duct 50, a first sealing ring 502 is embedded in the first embedded ring 501, and the first sealing ring 502 seals the first diversion channel 70 in the state that the burner body 1 moves upwards; correspondingly, a second embedded ring 601 is arranged on the peripheral wall of the pipe orifice of the second air duct 60, and a second sealing ring 602 is embedded in the second embedded ring 601, and the second sealing ring 602 seals the second air guide channel 70 when the burner body 1 is in an upward moving state. After the cooking is finished, the burner body 1 moves downwards relative to the first gas guide pipe 50 and the second gas guide pipe 60, and the cross sections of the first gas pipe 3 and the second gas guide pipe 4 are gradually narrowed from top to bottom, at this time, the first diversion channel 70 formed between the pipe walls of the first gas pipe 3 and the first gas guide pipe 50 is opened, and the second diversion channel 80 formed between the pipe walls of the second gas guide pipe 4 and the second gas guide pipe 60 is opened, so that the overflows flowing into the gas chamber and the flame stabilizing chamber in the cooking process are diversion through the first diversion port 110 and the second diversion port 6.

The burner body 1 is provided with a gas chamber 11 and a flame stabilizing chamber 12 which are independently arranged below the gas chamber 11, so that the flame stabilizing structure can be automatically adjusted according to the combustion working condition of the gas chamber 11 without being influenced by the gas chamber 11, in addition, a second flow guide port 6 which can guide overflow is arranged in the flame stabilizing chamber 12, the overflow is prevented from blocking the flame stabilizing chamber 12, and at least two flame outlet holes 124 are formed in the gas seat 122 along the circumferential direction from the viewpoint of simple processing of the flame outlet structure in the gas chamber 11. In order to achieve the flame stabilizing effect and the anti-overflow effect, the flame stabilizing structure is that the gas seat 122 is provided with flame stabilizing slits 125 under each flame outlet 124, which are only communicated with the flame stabilizing chamber 12.

Specifically, in order to facilitate the formation of the flame stabilizing chamber 12, the gas chamber 11, and the connection of the flame stabilizing chamber 12 and the gas chamber 11 to the base 121, it is preferable that the flame stabilizing chamber 12 is formed by the base 121 and the gas seat 122 covering the opening of the base 121, and the opening of the gas seat 122 is also opened and covered with the cover plate 9 and jointly joined to form the gas chamber 11, wherein the base 121 is provided with the first communication port 20 corresponding to the first gas pipe 3 and the second communication port 30 corresponding to the second gas pipe 4, and the base 121 is inserted between the first gas pipe 3 and the second gas pipe 4 via the partition portion 40 between the first communication port 20 and the second communication port 30. The flame stabilizing chamber 12 is formed by the base 121 and the gas seat 122 in a butt joint way, so that the processing is simpler, and meanwhile, the partition part 40 of the base 121 is used for plugging the first gas pipe 3 and the second gas pipe 4, so that the connection is more convenient. The base 121 is further provided with a collar 120 surrounding the first communication port 20 and the partition portion 40, a first flow guide port 110 communicating with a region surrounded by the collar 120 is provided at the bottom of the gas chamber 11, and the gas chamber 11 is placed on the collar 120 of the base 121 through a port wall of the first flow guide port 110, so that the gas chamber 11 and the flame stabilizing chamber 12 of the burner body 1 are vertically arranged.

In order to achieve the slow flow of the fuel gas in the fuel gas chamber 11 and further promote the mixing degree of the fuel gas and the primary air, the buffer portion 5 of the present embodiment is disposed on the opening wall of the first conduction port 110, the buffer portion 5 is plate-shaped and can at least partially shield the first communication port 20, and the opening of the first conduction port 110 that is not shielded is in fluid communication with the first communication port 20. After the gas and the primary air flow out of the first gas pipe 3 and are blocked by the buffer part 5, the gas and the primary air can only flow out of the opening which is not covered by the first guide opening 110, so that the gas path length can be prolonged, the gas flow speed can be reduced, and the flame separation can be avoided on the premise of improving the mixing degree of the gas and the primary air. In order to prevent the overflow generated during cooking from flowing into the gas chamber 11 and flowing toward the first gas pipe 3 to block the nozzle provided at the gas inlet of the first gas pipe 3, the partition 40 is provided with a blocking wall 401 protruding from the upper surface of the base 121 to block the overflow from flowing toward the first gas pipe 3.

In addition, in order to enable the switch member 7 to block the second conduction port 6 and to enable the elastic member 8 to be connected, the switch member 7 includes an upper end portion 71 having a larger upper end blocking surface, a lower end portion 72 having a smaller lower end blocking surface, and a rod portion 73 connecting between the upper end portion 71 and the lower end portion 72, the lower end portion 72 is capable of blocking the second conduction port 6, one end of the elastic member 8 is connected to the upper end portion 71, and the other end of the elastic member 8 is connected to the base 121. In a normal natural state, the lower end 72 of the switch element 7 seals the second conduction port 6, and the elastic element 8 is in a natural extension state to be abutted against the upper end 71 of the switch element 7; when more liquid overflows in the flame stabilizing chamber 12, the elastic piece 8 is forced to be compressed, the lower end part 72 of the switch piece 7 moves downwards so that the flow guiding opening 6 is exposed, and thus the overflows can be guided to the inner wall of the second gas pipe 4 through the second flow guiding opening 6, and the flame stabilizing structure in the flame stabilizing chamber 12 is reduced to be blocked when the overflows move downwards along the inner wall of the second gas pipe 4; in addition, when more liquid overflows in the gas chamber 11, the liquid overflows can be blocked by the blocking wall 401 protruding out of the upper surface of the base 121 in the partition part 40, and the liquid overflows blocked by the blocking wall 401 and is lower than the gas chamber 11 due to the arrangement of the convex ring 120 in the base 121 and cannot enter the flame stabilizing chamber 12, so that the small liquid overflows can be evaporated by using combustion heat generated in the combustion process; and the large overflow liquid can also descend along the inner wall of the first gas pipe 3, so that the fire discharging structure in the blocking gas chamber 11 can be reduced. Finally, in order to achieve better ignition and fire protection functions of the burner, preferably, the section of the gas seat 122 is in a "C" shape, the ends of the two ends of the "C" shape of the gas seat 122 are formed with notch portions 123, and the notch portions 123 are provided with ignition holes corresponding to the ignition pins and fire protection holes corresponding to the thermocouples.

In summary, the paths of the primary air, the fuel gas and the mixed primary air and fuel gas in the gas chamber 11 and the flame stabilizing chamber 12 of the burner are as follows: after the mixed primary air and fuel gas enter the gas chamber 11, the primary air and fuel gas collide with the buffer part 5 after passing through the first communication port 20, so that the gas outlet speed of the mixed gas entering the gas chamber 11 can be further reduced, and after entering the flame stabilizing gap 125 of the flame stabilizing chamber 12, the mixed primary air and fuel gas are ignited together with external secondary air to form flame stabilizing fire, the flame stabilizing fire chamber 11 is not easy to separate from flame when being discharged, and the flame stabilizing strength can be independently adjusted according to the combustion working condition; after the cooking is finished, the burner body 1 moves downwards relative to the first gas guide pipe 50 and the second gas guide pipe 60, and the cross sections of the first gas pipe 3 and the second gas guide pipe 4 are gradually narrowed from top to bottom, at this time, the first diversion channel 70 formed between the pipe walls of the first gas pipe 3 and the first gas guide pipe 50 is opened, and the second diversion channel 80 formed between the pipe walls of the second gas guide pipe 4 and the second gas guide pipe 60 is opened, so that the overflows flowing into the gas chamber 11 and the flame stabilizing chamber 12 in the cooking process are diversion through the first diversion port 110 and the second diversion port 6.

Claims (10)

1. Burner for a gas range, comprising a burner body (1), characterized in that: the burner body (1) is provided with a gas chamber (11) and a flame stabilizing chamber (12) positioned below the gas chamber (11), the gas chamber (11) and the flame stabilizing chamber (12) are respectively connected with a first gas pipe (3) and a second gas pipe (4) with the cross sections gradually narrowed from top to bottom, a first gas guide pipe (50) is detachably inserted at the gas inlet end of the first gas pipe (3), a second gas guide pipe (60) is detachably inserted at the gas inlet end of the second gas pipe (4), the burner body (1) is driven to move downwards relative to the first gas guide pipe (50) and the second gas guide pipe (60), a first guide channel (70) for guiding an overflow liquid is formed between the pipe walls of the first gas pipe (3) and the first gas guide pipe (50), a second guide channel (80) for guiding the overflow liquid is formed between the pipe walls of the second gas guide pipe (3) and the second gas guide pipe (60), correspondingly, the second gas guide channel (80) is arranged in the burner body (1) and adjacent to the second gas guide channel (6), a switch piece (7) capable of closing the second diversion port (6) and an elastic piece (8) capable of enabling the switch piece (7) to be always provided with the diversion port (6) are arranged on the second diversion port (6); the gas chamber (11) is also internally provided with a buffer part (5) which can buffer the gas flowing out of the first gas pipe (3), and a first diversion port (110) which is used for diversion of the overflow liquid to the first diversion channel (70) is arranged side by side with the buffer part (5).

2. The burner for a gas range according to claim 1, wherein: a first embedded ring (501) is arranged on the peripheral wall of the pipe orifice of the first air duct (50), a first sealing ring (502) is embedded in the first embedded ring (501), and the first sealing ring (502) seals the first diversion channel (70) when the burner body (1) is in an upward moving state; correspondingly, a second embedded ring (601) is arranged on the peripheral wall of the pipe orifice of the second air duct (60), a second sealing ring (602) is embedded in the second embedded ring (601), and the second sealing ring (602) seals the second diversion channel (80) when the burner body (1) is in an upward moving state.

3. The burner for a gas range according to claim 2, wherein: the flame stabilizing chamber (12) is formed by combining a base (121) and a gas seat (122) covering an opening part of the base (121), the opening part of the gas seat (122) is also open and covered with a cover plate (9) and is combined together to form a gas chamber (11), wherein the base (121) is provided with a first communication opening (20) corresponding to the first gas pipe (3) and a second communication opening (30) corresponding to the second gas pipe (4), and the base (121) is inserted and matched between the first gas pipe (3) and the second gas pipe (4) by means of a spacing part (40) between the first communication opening (20) and the second communication opening (30).

4. A burner for a gas range according to claim 3, wherein: the base (121) is provided with a convex ring (120) surrounding the first communication port (20) and the spacing part (40), the bottom of the gas chamber (11) is provided with a first diversion port (110) communicated with the area surrounded by the convex ring (120), and the gas chamber (11) is placed on the convex ring (120) of the base (121) through the port wall of the first diversion port (110).

5. The burner for a gas range according to claim 4, wherein: the gas chamber (11) is internally provided with a buffer part (5) capable of buffering the gas flowing out of the first gas pipe (3), the buffer part (5) is arranged on the mouth wall of the first guide mouth (110), the buffer part (5) is plate-shaped and can at least partially shield the first communication mouth (20), and an opening which is not shielded by the first guide mouth (110) is in fluid communication with the first communication mouth (20).

6. The burner for a gas range according to claim 5, wherein: the partition (40) is provided with a baffle wall (401) protruding from the upper surface of the base (121) to block the overflow flow to the first gas pipe (3).

7. The burner for a gas range according to any one of claims 2 to 6, wherein: the switch piece (7) comprises an upper end (71) with a larger upper end plugging surface, a lower end (72) with a smaller lower end plugging surface and a rod (73) connected between the upper end (71) and the lower end (72), the lower end (72) can plug the diversion opening (6), one end of the elastic piece (8) is connected to the upper end (71), and the other end of the elastic piece (8) is connected to the base (121).

8. The burner for a gas range according to claim 7, wherein: the section of the gas seat (122) is in a C shape, the end parts of the two ends of the C shape of the gas seat (122) are provided with notch parts (123), and the notch parts (123) are provided with ignition holes corresponding to ignition needles and/or ignition holes corresponding to thermocouples.

9. The burner for a gas range according to claim 8, wherein: at least two fire outlets (124) are formed in the circumferential direction of the gas seat (122).

10. The burner for a gas range according to claim 9, wherein: the gas seat (122) is provided with flame stabilizing slits (125) which are only communicated with the flame stabilizing chamber (12) below each flame outlet hole (124).

Images