CN113531591A - Combustion structure of gas stove - Google Patents

Abstract

The invention discloses a combustion structure of a gas stove, which comprises a burner body and a burner gas control valve, wherein the burner body consists of a primary air injection pipe, a gas mixing chamber, a gas inlet hole and a primary air hole, and the gas mixing chamber is arranged at one end of the primary air injection pipe. The thermocouple induction needle is arranged on the edge of the fire outlet hole of the fire distributor, and after the thermocouple protection device is used, once the fire is extinguished due to external reasons, an air source can be quickly cut off, and the air leakage condition is prevented, so that the set beneficial effect can be achieved; of course, the outer ring of the burner body can be made into two rings or even three rings like the existing burner body, but one ring needs to be kept in a fire state in the using process so as to be beneficial to the installation of the flameout protection device. The flame nozzle consists of a primary air inlet hole and a gas mixing cavity, the gas entering the flame nozzle is mixed with enough air to be fully combusted, and the flame of the outer ring provides a stable combustion state.

Description

Combustion structure of gas stove

Technical Field

The invention relates to the field of gas cookers, in particular to a combustion structure of a gas cooker.

Background

The atmosphere formula combustion structure that traditional cooking utensils generally used the furnace end body to add the distributor relies on its kinetic energy that jet-propelled comes out to inhale primary air from the gas that the air jet, gets into furnace end body gas mixing chamber after the misce bene and then combines the secondary air burning in the atmosphere through distributor fire outlet. The combustion mode has sufficient combustion and produces low content of carbon monoxide. Firstly, the mixed air is burnt in the air from the fire hole and is not directly burnt at the bottom of the pot, so that much heat is greatly dissipated in the air through conduction and radiation. Secondly, the structure of adding the fire distributor to the furnace end body ensures that each fire hole can be fully combusted, so that the supplement of secondary air during the combustion of each fire hole is ensured, and the size and the arrangement of the fire holes are limited. If generally, the fuel gas is uniformly distributed on the outer ring so as to ensure that enough air enters, the diameter of each fire hole is less than 2.8, the discharged mixed fuel gas can be fully combusted, and the like. This means that the diameter of the distributor needs to be made large to make the fire power large. Therefore, in many gas stoves with large fire, because the diameter of the stove head body is large, the situation that the periphery of the stove is high in temperature and the central cooking oil is not hot can occur during cooking. The burning structure of traditional furnace end body with distributor can't reach the purpose of concentrating the firepower.

Actually, the atmospheric combustion has a structure that the combustion is carried out by a straight pipe direct injection boiler bottom. The gas from the nozzle is mixed in the straight pipe by the kinetic energy of the gas from the nozzle, and is directly sprayed to the bottom of the pot to be combined with the air around for combustion. Because the fuel is directly combusted at the bottom of the pot, a lot of heat taken away by surrounding air is reduced, the heat efficiency can be greatly improved, and moreover, the large fire power is diffused outwards from the center of the pot, so that the Chinese cooking requirement is met. However, if enough air is mixed in the method, the air is separated from the pot for combustion, the fire is extinguished as soon as the pot is taken away, and a flameout protection device is difficult to arrange, so that great potential safety hazard is caused. If not enough primary air is mixed, the combustion is not sufficient, a large amount of carbon monoxide is discharged, and the method is also unsafe.

Disclosure of Invention

Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a combustion structure of a gas cooker, by arranging a flame spray nozzle, because outer ring fire exists all the time in the whole combustion process, the gas mixed with enough primary air cannot leave the air under the action of the outer ring fire when being combusted, the gas can be stably combusted, the combustion is directly carried out at the bottom of a pot and is mixed with air at the periphery, the heat efficiency is greatly improved, the heat load can be increased by increasing the central flame spray nozzle, namely, the firepower is increased, the firepower is concentrated at the center of the pot, and the heat is transferred from the center to the periphery, so that the cooking requirement is met; and the thermocouple induction needle is added on the edge of the outer ring fire outlet, and after the thermocouple protection device is used, once the fire is extinguished due to external reasons, the air source can be quickly cut off, and the air leakage condition is prevented, so that the set beneficial effect can be achieved; the furnace end can be made into two rings or even three rings, so that one ring is ensured to be kept in a fire state in the use process, the thermocouple induction needle is favorably installed, and the direct injection and stable combustion of the central flame nozzle are ensured.

Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a gas cooking utensils combustion structure, includes furnace end body and gas control valve, and the outer loop adopts the furnace end body to add the traditional atmospheric type combustion structure of distributor, and the center adopts the nozzle of spouting direct injection combustion structure, and the outer lane of furnace end body also can make two rings or even three rings like present furnace end body, nevertheless ensures to have a ring must hold the fire state in the use, the furnace end draws tub and thoughtlessly air chamber, gas inlet port, primary air hole to constitute by primary air, thoughtlessly air chamber establishes the one end at the primary air draws tub, gas inlet port and primary air hole establish the other end at the primary air draws tub, the upper portion movable mounting who thoughtlessly air chamber has the distributor, the upper end week side of distributor is circular array and has a plurality of holes of throwing a fire, the thermocouple response needle is installed in the outside of hole of throwing a fire, the thermocouple response needle has the connecting wire to connect the solenoid valve, the gas control valve is provided with first air nozzle, second air nozzle and third air nozzle respectively, the inside solenoid valve that is provided with of gas control valve, one side movable mounting of gas control valve has the knob, the tip fixedly connected with gas connecting pipe of first air nozzle or third air nozzle, another tip fixed mounting of gas connecting pipe has the bocca, the gas inlet port and the second air nozzle swing joint of furnace end body one end.

Furthermore, the diameter of the fire outlet is 1.0-3.0 mm.

Furthermore, the flame nozzle comprises a gas mixing cavity and a primary air inlet hole, the gas mixing cavity is arranged at the upper end of the flame nozzle, and the primary air inlet hole is arranged on the side wall of the lower end of the flame nozzle.

Further, the first air nozzle is arranged on one side of the gas control valve, and the second air nozzle and the third air nozzle are arranged on the side wall of the first air nozzle.

Advantageous effects

Compared with the prior art, the invention has the advantages that:

according to the scheme, the outer ring fire exists all the time in the whole combustion process, so that the gas mixed with enough primary air cannot leave the air under the action of the outer ring fire when being combusted, the combustion state is stable, the gas is directly combusted at the bottom of a pot and is combusted by mixing surrounding air, the heat efficiency is greatly improved, the heat load can be increased by increasing the central fire nozzle, namely, the fire is increased, the fire is concentrated in the center of the pot, the heat is transferred from the center to the periphery, and the cooking requirement is met; after a thermocouple induction needle is arranged on the fire outlet edge of the fire distributor, and a thermocouple protection device is used, once the fire is extinguished due to external reasons, an air source can be quickly cut off, and the air leakage condition is prevented, so that the set beneficial effect can be achieved; the furnace end body can be made into two rings or even three rings, so that one ring is ensured to be kept in a fire state in the using process, a thermocouple induction needle is favorably installed, and the direct injection and stable combustion of the central flame nozzle are ensured.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

The reference numbers in the figures illustrate:

1. a gas control valve; 2. a knob; 3. a first air nozzle; 4. a second air nozzle; 5. a third air nozzle; 6. a furnace end body; 7. a primary air ejector tube; 8. a gas mixing chamber; 9. a fire divider; 10. a fire outlet; 11. a gas inlet hole; 12. a primary air hole; 13. a gas connecting pipe; 14. primary air inlet holes; 15. a flame nozzle; 16. a gas mixing cavity; 17. an electromagnetic valve; 18. a thermocouple sensing pin; 19. and connecting the wires.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1, a combustion structure of a gas cooker comprises a burner body 6 and a gas control valve 1, wherein the burner body 6 is composed of a primary air injection pipe 7, a gas mixing chamber 8, a gas inlet 11 and a primary air hole 12, the gas mixing chamber 8 is arranged at one end of the primary air injection pipe 7, the gas inlet 11 and the primary air hole 12 are arranged at the other end of the primary air injection pipe 7, a distributor 9 is movably arranged at the upper part of the gas mixing chamber 8, a plurality of fire outlets 10 are arranged on the circumferential side of the upper end of the distributor 9 in a circular array, a thermocouple induction needle 18 is arranged outside the fire outlets 10, the lower end of the thermocouple induction needle 18 is connected with a connecting wire 19 to an electromagnetic valve 17, the gas control valve 1 is provided with a first air nozzle 3, a second air nozzle 4 and a third air nozzle 5, the electromagnetic valve 17 is arranged inside the gas control valve 1, constitute flame-out protection device with thermocouple response needle 18, one side movable mounting of gas control valve 1 has knob 2, when using the single tube furnace end structure shown in figure 1, one of first air nozzle 3 and third air nozzle 5 is with screw or other structures, material shutoff, and another tip fixed connection is to gas connecting pipe 13, another tip fixed mounting of gas connecting pipe 13 has bocca 15, bocca 15 includes gas mixing chamber 16 and one time air inlet 14, gas mixing chamber 16 establishes the upper end at bocca 15, one time air inlet 14 establishes the lower extreme lateral wall at bocca 15, the gas inlet 11 and the second air nozzle 4 swing joint of furnace end body 6 one end.

Referring to fig. 1, the diameter of the fire holes 10 is 1.0-3.0mm, and the fire holes 10 are arranged to guide air to enter, which is helpful to improve the combustion efficiency.

Example two:

referring to fig. 1, the first air nozzle 3 is arranged at one side of the gas control valve 1, the second air nozzle 4 and the third air nozzle 5 are arranged at the side wall of the first air nozzle 3, when we use the double-tube burner 6, the second air nozzle 4 and the third air nozzle 5 are connected into the two gas inlet holes 11 of the double-tube burner 6, and the first air nozzle 3 is connected to the flame nozzle 15 through the gas connecting pipe 13; this is another embodiment of the present combustion configuration.

Referring to fig. 1, when in use, the burner body 6 is composed of a primary air injection pipe 7, a gas mixing chamber 8, a gas inlet hole 11 and a primary air hole 12; the fire distributor 9, the fire outlet 10 is distributed all over the periphery of the fire distributor 9; the gas control valve 1 is provided with a first air nozzle 3, a second air nozzle 4, a third flame nozzle 5 and an electromagnetic valve 17, the second air nozzle 4 is connected to a gas inlet hole 11 of the furnace end body 6, kinetic energy sprayed by gas is involved into air from a primary air hole 12, the air enters an internal gas mixing chamber 8 of the furnace end body 6 through a primary air injection pipe 7 and is uniformly mixed, and then the gas mixed with primary air is discharged from a distributor 9 on the cover to fire outlets 10 distributed on the distributor 9 on the furnace end body 6 and is combusted by combining surrounding secondary air; the gas from the first air nozzle 3 or the third air nozzle 5 enters a flame nozzle 15 through a gas connecting pipe 13, and the flame nozzle 15 consists of a primary air inlet hole 14 and a gas mixing cavity 16 and is arranged in the middle position below the burner body 6; the gas entering the flame nozzle 15 is mixed into primary air from the primary air hole 14 through the ejected kinetic energy, and is directly ejected and combusted after being mixed in the gas mixing cavity 16; in order to ensure sufficient combustion, a sufficient primary air inlet hole 14 is designed, and the gas added with sufficient primary air can generate air-separated flame during combustion, but through the design of the combustion structure, the flame generated by the combustion of the gas from the second gas nozzle 4 on the valve body on the fire outlet holes 10 distributed all over the distributor 9 can effectively stabilize the flame generated by the combustion of the gas mixed with sufficient primary air on the flame nozzle 15, so that stable combustion is formed, and the large fire force is concentrated on the bottom of the pot; fixing a thermocouple induction needle 18 on the edge of the fire outlet hole 10, transmitting thermal potential to an electromagnetic valve 17 in a gas control valve 1 through a connecting wire 19 at the lower end of the thermocouple induction needle 18, when the stove is flamed out accidentally, cutting off gas through the electromagnetic valve 17 by the thermocouple induction needle 18 which cannot induce heat energy, thereby achieving the purpose of safety protection, in operation, pressing a knob 2 to strike fire anticlockwise, then slowly reducing the flame on a central flame nozzle 15 until the flame is extinguished, then slowly reducing the flame on the outer flame outlet hole 10, adjusting the position of the maximum flame clockwise, then slowly reducing the flame on the central flame nozzle 15 and the outer flame outlet hole 10 until the flame is completely closed, the design not only ensures that the large and small flames are adjusted simply and conveniently, but also ensures that the thermocouple induction needle 18 induces heat all the time in the normal combustion process, the opening state of the gas valve body is ensured during normal use.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (4)

1. The utility model provides a gas cooking utensils combustion structure, includes furnace end body (6) and gas control valve (1), its characterized in that: the burner body (6) is composed of a primary air injection pipe (7), a gas mixing chamber (8), a gas inlet hole (11) and a primary air hole (12), the one end of the primary air injection pipe (7) is arranged in the gas mixing chamber (8), the other end of the primary air injection pipe (7) is arranged in the gas inlet hole (11) and the primary air hole (12), a distributor (9) is movably arranged on the upper portion of the gas mixing chamber (8), a plurality of fire holes (10) are formed in the circular array of the upper end peripheral side of the distributor (9), a thermocouple induction needle (18) is installed on the outer side of the fire holes (10), a connecting wire (19) is connected to the lower end of the thermocouple induction needle (18), a first air nozzle (3), a second air nozzle (4) and a third air nozzle (5) are respectively arranged on the gas control valve (1), and the electromagnetic valve (17) is installed in the gas control valve (1), one side movable mounting of gas control valve (1) has knob (2), the tip fixedly connected with gas connecting pipe (13) of first air nozzle (3) or third air nozzle (5), another tip fixed mounting of gas connecting pipe (13) has bocca (15), gas inlet port (11) and second air nozzle (4) swing joint of furnace end body (6) one end.

2. A gas cooker combustion structure as claimed in claim 1, wherein: the diameter of the fire outlet (10) is 1.0-3.0 mm.

3. A gas cooker combustion structure as claimed in claim 1, wherein: the flame nozzle (15) comprises a gas mixing cavity (16) and a primary air inlet hole (14), the gas mixing cavity (16) is arranged at the upper end of the flame nozzle (15), and the primary air inlet hole (14) is arranged on the side wall of the lower end of the flame nozzle (15).

4. A gas cooker combustion structure as claimed in claim 1, wherein: the first air nozzle (3) is arranged on one side of the gas control valve (1), and the second air nozzle (4) and the third air nozzle (5) are arranged on the side wall of the first air nozzle (3).

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