Double-air-flue gas stove

Abstract

The utility model relates to the technical field of gas stoves, in particular to a double-gas-passage gas stove, which is provided with a kindling gas passage, so that the use amount of gas is saved, an ignition device does not need to be frequently used for re-igniting the gas, the workload of a cook is reduced, and the use difficulty of the gas stove is reduced. Comprising a base, a stove body is arranged in the base, a partition plate is arranged on the inner wall of the stove body and divides the stove body into an upper combustion chamber and a lower combustion chamber which are communicated with each other, and a main gas channel, a kindling gas channel and an igniter are arranged at the position, located in the lower combustion chamber, of the base; a gas outlet of the kindling gas channel is located in the lower combustion chamber, the end of the main gas channel penetrates through the partition plate and extends into the upper combustion chamber, a fire cover is further arranged at the end of the main gas channel, and a plurality of gas outlet holes are evenly formed in the periphery of the bottom of the fire cover at intervals.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to a double-airway gas stove. Background Art

[0002] In the fields of catering and diet, gas stoves are one of the popular kitchen utensils. The basic principle of a gas stove is to lead out gas through a pipeline, and after ignition, with the help of external air, heat the cookware to reach the cooking temperature. The basic structure of a gas stove includes a pipeline, a burner cap, and a gas mixing combustion chamber. The burner cap is connected to the gas pipe inside it, and gas enters the gas mixing combustion chamber through the burner cap for combustion. Under the action of the burner cap, the flame generated by the combustion of gas can fully contact the bottom of the cookware to complete heating.

[0003] At present, when using a gas stove, most of them ignite the gas introduced into the combustion chamber through the main airway by an ignition device. When cooking, the gas output of the main gas pipe is adjusted to achieve the effect of firepower adjustment. In actual use of the gas stove, in order to save gas, during the intervals between cooking different dishes, it is also necessary to completely close the main gas pipe. When the gas stove is lit again, it is necessary to re-ignite it through the ignition device, and the ignition device cannot be lit once, which is rather troublesome.

[0004] At the same time, those skilled in the art have found in actual applications that the combustion of gas is related to temperature, gas concentration, and gas pressure. Within a certain range, the higher the gas pressure, the higher its combustion temperature. However, due to the reason of gas pipeline setting, when the current gas is transported to the user end in the pipeline, its temperature and pressure are constant. Only by changing the burner head of the gas stove can the pressure be increased, and then the combustion temperature of the gas can be increased. The structure of this kind of gas stove is relatively complex, the cost is high, and it is not suitable for application environments that require frequent start and stop. Content of the Utility Model

[0005] I. Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a double-airway gas stove. By setting a pilot gas airway, while saving the gas consumption, it is not necessary to frequently use the ignition device to re-ignite the gas, reducing the workload of the cook and the difficulty of using the gas stove.

[0007] II. Specific Technical Solutions

[0008] A double-airway gas stove, including a base, a stove body is arranged inside the base, a partition board is arranged on the inner wall of the stove body, the partition board divides the stove body into an upper combustion chamber and a lower combustion chamber which are communicated with each other, a main airway, a pilot gas airway and an igniter are arranged at the position of the base inside the lower combustion chamber; the air outlet of the pilot gas airway is located inside the lower combustion chamber, the end of the main airway passes through the partition board and extends into the upper combustion chamber, and a burner cap is further arranged at the end of the main airway, and a plurality of air holes are evenly spaced around the bottom of the burner cap.

[0009] Implementation principle, working principle: The basic principle of this solution is that, specifically in use, first the igniter ignites the gas in the pilot gas airway, then the main airway is opened, and the gas in the main airway is distributed in the upper combustion chamber and enters the lower combustion chamber through the air holes of the burner cap, and then the flame of the pilot gas airway will ignite the gas in the main airway distributed in the upper and lower combustion chambers; in this solution, through the setting of the partition board, the upper and lower combustion chambers are separated, so that most of the gas in the main airway can burn fully in the upper combustion chamber, and the interference between the two combustion chambers is relatively small; the setting of the burner cap and the air holes on it makes the gas in the main gas pipe more uniform in the two combustion chambers, making the flame distribution in it more uniform and the heating effect better; in the working condition where the gas stove needs to be frequently started and stopped, only the gas in the main airway needs to be cut off or introduced, and the gas in the pilot gas airway will continue to burn, which is only used as a pilot and thus has a small loss, but can effectively avoid frequent starting and stopping of the igniter and reduce the use difficulty of the gas stove.

[0010] As a preference: A connecting portion extends outward in the circumferential direction of the upper edge of the stove body, and the other end of the connecting portion extends downward to form a limiting protrusion, and the stove body is arranged at the upper end of the base through the limiting protrusion; the beneficial effect of this preference is that through the limiting protrusion and the connecting portion, the stove body is lapped or fitted on the upper end of the base, which is convenient for disassembly and cleaning.

[0011] As a preference: The side wall of the lower combustion chamber is provided with a first ventilation hole; an air inlet channel is opened at the bottom of the base, one end of the air inlet channel is connected with a blower, and the other end of the air inlet channel is arranged opposite to the first ventilation hole; the beneficial effect of this preference is that through the cooperation of the first ventilation hole and the air inlet channel, enough air can be provided for the combustion of the gas, effectively assisting combustion.

[0012] As a preference: The upper gas chamber expands outward at the height position of the burner cap to form an enlarged section; the beneficial effect of this preference is that through the setting of the enlarged section, on the one hand, it is convenient for placing cookware, and on the other hand, it is also convenient to provide enough space for the spread of the gas, making the fire more uniform.

[0013] Preferably, there is a gap between the inner wall of the base and the outer wall of the stove body, and second ventilation holes are provided on the side wall of the capacitive section. The beneficial effect of this preference is that through the setting of the second ventilation holes, the air introduced by the blower can enter the upper combustion chamber through the second ventilation holes for combustion support, ensuring sufficient air required for combustion.

[0014] Preferably, an ignition inductor is further provided at the bottom of the base located in the lower combustion chamber, and a safety valve is also provided on the main air duct. The ignition inductor is electrically connected to the safety valve. When the ignition inductor detects that ignition has not occurred, the safety valve remains closed. The beneficial effect of this preference is that through the setting of the ignition inductor, it can be judged whether there is combustion in the lower combustion chamber, and then in cooperation with the safety valve, it can effectively prevent the gas in the main air duct from entering the upper combustion chamber without being ignited, causing waste or safety risks.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. In this solution, through the setting of the partition plate, the upper and lower combustion chambers are separated, so that most of the gas in the main air duct can burn sufficiently in the upper combustion chamber, and there is no mutual interference between the two combustion chambers.

[0017] 2. The setting of the burner cap and the air outlet holes thereon makes the gas in the main gas pipe more uniform in the two combustion chambers, making the flame distribution therein more uniform and the heating effect better.

[0018] 3. When operating conditions require frequent start and stop of the gas stove, it is only necessary to cut off or introduce gas into the main air duct. The gas in the ignition air duct will continue to burn, and it is only used as an ignition source, so the loss is small. It can effectively avoid frequent start and stop of the igniter, reducing the difficulty of using the gas stove.

[0019] 4. When the present solution is specifically used, the ignition gas will always burn in the lower combustion chamber, which can maintain the temperature in the lower combustion chamber. On the one hand, it can heat the main air duct, which can improve the gas pressure at the air outlet of the main air duct to a certain extent, and then increase the combustion temperature of the gas. On the other hand, heating the gas in the main air duct makes it easier to ignite the gas at the air outlet of the main air duct frequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic cross-sectional structure diagram of the double-airway gas stove of the present utility model.

[0021] Description of the reference numerals:

[0022] Base 1, main air duct 101, ignition air duct 102, burner cap 103, air outlet hole 104, intake passage 105, blower 106, ignition inductor 107, safety valve 108; stove body 2, partition plate 201, upper combustion chamber 202, lower combustion chamber 203, igniter 204, connecting portion 205, limiting projection 206, first ventilation hole 207, capacity-increasing section 208, second ventilation hole 209. Specific embodiments

[0023] The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] As Figure 1 shown: A dual-airway gas stove includes a base 1, where the base 1 is mainly used for installing the stove body 2 and fixing the entire gas stove; during implementation, both the base 1 and the stove body 2 are in a cylindrical shape, and threaded holes are provided on the outer edge of the top for installation and fixation; among them, a connecting portion 205 extends outward in a circumferential direction along the upper edge of the stove body 2, and the other end of the connecting portion 205 extends downward to form a limiting projection 206. The outer side of the limiting projection contracts and cooperates with the upper end of the base 1, which can prevent the stove body 2 from detaching from the base 1, and no other external fixing structures are required, making disassembly and assembly convenient.

[0025] During implementation, a partition plate 201 is integrally formed on the inner wall of the stove body 2. Among them, the partition plate 201 divides the stove body 2 into a connected upper combustion chamber 202 and a lower combustion chamber 203, that is, there is a gap between the end of the partition plate 201 and the main air duct 101; during implementation, a main air duct 101, an ignition air duct 102, and an igniter 204 are provided at the position of the base 1 within the lower combustion chamber 203; the air output of the ignition air duct 102 is much smaller than that of the main air duct 101 and is only used for ignition of the fire. Specifically, the air outlet of the ignition air duct 102 is located in the lower combustion chamber 203. When the ignition gas is distributed in the lower combustion chamber, the lower combustion chamber can be ignited through the igniter 204; the end of the main air duct 101 passes through the partition plate 201 and enters the upper combustion chamber 202. A burner cap 103 is also provided at the end of the main air duct 101. A plurality of air outlet holes 104 are evenly spaced around the bottom of the burner cap 103. The gas in the main air duct 101 enters the upper combustion chamber 202 and the lower combustion chamber 203 through the air outlet holes 104 of the burner cap 103. The ignition in the lower combustion chamber 203 will ignite the gas in the main air duct 101 and keep it burning. The setting of the burner cap 103 and the air outlet holes 104 thereon makes the gas in the main air duct 101 more uniform in both combustion chambers, making the flame distribution therein more uniform and the heating effect better.

[0026] During implementation, the upper gas chamber 202 is expanded outward at the height of the fire cover 103 to form an expansion section 208. The provision of the expansion section 208 facilitates the placement of pots and pans and provides sufficient space for the spread of gas, making the fire more uniform. Specifically, a gap is provided between the inner wall of the base 1 and the outer wall of the stove body 2. This gap leaves sufficient space for air to enter, facilitating combustion.

[0027] Specifically, an air intake channel 105 is provided at the bottom of the base 1, and one end of the air intake channel 105 is connected to a fan 106. The fan 106 introduces sufficient combustion-supporting air into the base 1, and a first ventilation hole 207 is provided on the side wall of the lower combustion chamber 203. The other end of the air intake channel 105 is arranged opposite to the first ventilation hole 207, so that air can directly enter the lower combustion chamber 203 from the first ventilation hole 207, and then enter the upper combustion chamber 202. A second ventilation hole 209 is provided on the side wall of the capacity expansion section 208, and the air in the base can also enter the upper combustion chamber 202 from the second ventilation hole 209, so that the gas in the upper combustion chamber 202 and the lower combustion chamber 203 can be fully burned.

[0028] During implementation, an ignition sensor 107 is provided at the bottom of the base 1 within the lower combustion chamber 203. A safety valve 108 is also provided on the main gas passage 101. The ignition sensor 107 is electrically connected to the safety valve 108. When the ignition sensor 107 detects that the gas is not ignited, the safety valve 108 remains closed. When the ignition sensor 107 detects that the gas in the lower combustion chamber 203 is burning, the safety valve 108 opens to allow the gas to flow in. This effectively prevents gas leaks, conserves gas, and improves safety.

[0029] Working principle:

[0030] During specific use, the gas in the pilot gas passage 102 is first ignited by the igniter 204, and then the main gas passage 101 is opened. The gas in the main gas passage 101 is distributed in the upper combustion chamber 202 and enters the lower combustion chamber 203 through the gas outlet of the fire cover. Then, the flame of the pilot gas passage 102 ignites the gas in the main gas passage 101 distributed in the upper and lower combustion chambers 203.

[0031] Among them, through the setting of the partition plate 201, the upper and lower combustion chambers are separated, so that most of the gas in the main air duct 101 can burn sufficiently in the upper combustion chamber 202, and the two combustion chambers do not interfere with each other; the setting of the burner cap 103 and the air holes 104 thereon makes the gas in the main gas pipe 101 relatively uniform in the two combustion chambers, making the flame distribution therein more uniform and the heating effect better; when operating conditions require frequent start and stop of the gas stove, it is only necessary to cut off or introduce the gas in the main air duct 101, while the gas in the pilot air duct 102 will continue to burn. It is only used as a pilot, so the loss is small, but it can effectively avoid frequent start and stop of the igniter, reducing the difficulty of using the gas stove.

[0032] More importantly, the pilot gas will always burn in the lower combustion chamber 203, which can maintain the temperature in the lower combustion chamber 203. On the one hand, it can heat the main air duct 101, which can improve the gas pressure at the outlet of the main air duct 101 to a certain extent, and then increase the combustion temperature of the gas in the main air duct. On the other hand, heating the gas in the main air duct 101 makes it easier to frequently ignite the gas at the outlet of the main air duct 101.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A dual-airway gas stove, comprising a base (1), wherein a stove body (2) is arranged inside the base (1), and it is characterized in that: A partition plate (201) is provided on the inner wall of the stove body (2). The partition plate (201) divides the stove body (2) into a connected upper combustion chamber (202) and a lower combustion chamber (203). A main air passage (101), a pilot air passage (102) and an igniter (204) are provided at the position of the base (1) within the lower combustion chamber (203). The outlet of the pilot air passage (102) is located in the lower combustion chamber (203). The end of the main air passage (101) passes through the partition plate (201) and extends into the upper combustion chamber (202). A burner cap (103) is further provided at the end of the main air passage (101). A plurality of air holes (104) are evenly spaced around the bottom of the burner cap (103).

2. The double-airway gas stove according to claim 1, characterized in that: A connecting portion (205) extends outward in the circumferential direction of the upper edge of the stove body (2). The other end of the connecting portion (205) extends downward to form a limiting protrusion (206). The stove body (2) is arranged on the upper end of the base (1) through the limiting protrusion (206).

3. The dual-airway gas stove according to claim 1, wherein: A first ventilation hole (207) is provided on the side wall of the lower combustion chamber (203). An air intake passage (105) is provided at the bottom of the base (1). One end of the air intake passage (105) is connected to a blower (106), and the other end of the air intake passage (105) is arranged opposite to the first ventilation hole (207).

4. The dual-airway gas stove according to claim 1, wherein: The upper combustion chamber (202) expands outward at the height position of the burner cap (103) to form an enlarged section (208).

5. The dual-airway gas stove according to claim 4, wherein: There is a gap between the inner wall of the base (1) and the outer wall of the stove body (2). A second ventilation hole (209) is provided on the side wall of the enlarged section (208).

6. The dual-airway gas stove according to claim 1, wherein: An ignition inductor (107) is further provided at the bottom of the base (1) within the lower combustion chamber (203). A safety valve (108) is also provided on the main air passage (101). The ignition inductor (107) is electrically connected to the safety valve (108). When the ignition inductor (107) detects that it is not ignited, the safety valve (108) remains closed.

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