CN203478254U - Gas nozzle for gas stoves and gas stove with same - Google Patents

Abstract

The utility model discloses a gas nozzle for gas stoves and a gas stove with the same. The gas nozzle comprises a body, a primary mixing cavity, primary air ejection channels, a secondary mixing cavity, and secondary air ejection channels. The body is provided with an intake cavity. The secondary air ejection channels peripherally penetrating the body are communicated with the primary mixing cavity and the secondary mixing cavity respectively and formed between the primary mixing cavity and the secondary mixing cavity. According to the embodiment, the multiple air ejection channels are added to the gas nozzle, so that the gas nozzle can eject more air which can mix with gas more sufficiently; the gas is burned through the gas nozzle, the content of carbon monoxide in burning smoke can be reduced effectively, the gas nozzle can be used more safely, and yellow flames occurring during burning of the gas can be reduced or eliminated.

Description

Gas nozzle for gas cooker and gas cooker having same

technical field

The utility model relates to the technical field of preparation of kitchen appliances, in particular to a gas nozzle for a gas stove and a gas stove with the same.

Background technique

At present, one of the nozzles used in gas appliance products does not have a first-level air injection hole, which is mostly used for natural gas and artificial gas products, and a small part is used for liquefied gas products. The other nozzle has a first-level air injection. Holes are mainly used for liquefied gas products. The nozzles used in existing gas appliances for liquefied gas products have only one row or no primary air holes, and their ejection capacity is limited, and they cannot inject enough primary air, resulting in yellow flames and smoke in the process of use. The problem of high CO, or in order to solve or reduce the problem of yellow flame and high CO during combustion, other performance indicators have to be sacrificed, such as small heat load, large burner to increase the fire hole area, heighten the pot support, reduce thermal efficiency, etc. .

Utility model content

The utility model aims to solve one of the above-mentioned technical problems at least to a certain extent.

Therefore, an object of the present utility model is to provide a gas nozzle for a gas cooker with a simple structure, more air injection, and a more uniform mixture of gas and air.

Another object of the present utility model is to provide a gas cooker with the above-mentioned gas nozzle for a gas cooker.

According to the first aspect of the utility model, the gas nozzle for the gas cooker includes: a main body, and an air intake cavity is formed on the main body, and the air intake cavity is arranged at one end of the main body. The axial penetration of the main body; a primary mixing chamber, the primary mixing chamber is set in the main body and communicates with the air intake chamber; a primary air injection channel, the primary air injection channel It penetrates along the circumference of the main body and communicates with the primary mixing chamber; the secondary mixing chamber is arranged at the other end of the main body, and the secondary mixing chamber is arranged along the axis of the main body and communicate with the primary mixing chamber; and a secondary air injection channel, the secondary air injection channel penetrates along the circumferential direction of the main body, and the secondary air injection channel is respectively connected to the The primary mixing chamber and the secondary mixing chamber are connected and arranged between the primary mixing chamber and the secondary mixing chamber.

According to the gas nozzle used in the gas cooker in the embodiment of the present invention, by adding multi-stage air injection channels on the gas nozzle, the gas nozzle can inject more air, and the injected air can be more fully integrated with the gas. Mixing, the gas is burned after passing through the gas nozzle, which can effectively reduce the content of carbon monoxide in the combustion flue gas, improve the safety of the gas nozzle, and can also reduce or eliminate the generation of yellow flames during the gas combustion process.

In addition, the gas nozzle for a gas stove according to the utility model can also have the following additional technical features:

According to an embodiment of the present invention, the primary mixing chamber includes a primary air inlet port and a primary air outlet port, the primary air inlet port communicates with the air inlet chamber, and the primary air outlet port communicates with the air inlet port. The secondary mixing chamber is connected, the primary air introduction channel includes a first air inlet and a first air outlet, the first air outlet is connected to the primary air inlet, and the primary A first angle is formed between the air injection channel and the primary mixing chamber; the secondary mixing chamber includes a secondary air inlet and a secondary air outlet, and the secondary air inlet and the primary air outlet The secondary air outlet is connected to the outside world. The secondary air injection channel includes a second air inlet and a second air outlet. The second air outlet is connected to the primary air outlet and the second air outlet. The inlet end of the first stage is connected, and a second included angle is formed between the second-stage air injection channel and the first-stage mixing chamber, and the range of the first included angle and the second included angle is 20°-100°.

According to an embodiment of the present utility model, the first included angle is a right angle, and the second included angle is an acute angle.

According to an embodiment of the present invention, there are multiple primary air injection channels and secondary air injection channels, and multiple primary air injection channels and secondary air injection channels are arranged along the main body. The circumferential intervals are evenly spaced.

According to an embodiment of the present utility model, there are 2 to 8 said primary air injection channels and secondary air injection channels.

According to an embodiment of the present invention, the cross sections of the primary air injection channel and the secondary air injection channel are formed as round holes or slotted holes.

According to an embodiment of the present invention, the air inlet chamber includes an air inlet end and an air outlet end, and the diameter of the air inlet end is larger than the diameter of the air outlet end.

According to an embodiment of the present invention, the secondary mixing chamber is formed in a column shape, and the diameter of the secondary mixing chamber is greater than or equal to the diameter of the primary mixing chamber.

The gas cooker according to the second aspect of the utility model includes: an intake valve; a burner; and a gas nozzle for a gas cooker according to the above-mentioned embodiment, the gas nozzle is respectively connected to the intake valve and the connected to the burner.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a gas nozzle for a gas cooker according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another angle of a gas nozzle for a gas cooker according to an embodiment of the present invention;

Fig. 3 is a sectional view according to line C-C in Fig. 1;

Fig. 4 is a sectional view according to line D-D in Fig. 2;

Fig. 5 is a schematic structural view of a gas stove according to an embodiment of the present invention;

Reference signs:

10: subject;

20: primary mixing chamber; 21: primary air inlet; 22: primary air outlet;

30: primary air injection channel; 31: first air inlet; 32: first air outlet;

40: secondary air injection channel; 41: second air inlet; 42: second air outlet;

50: secondary mixing chamber; 51: secondary air inlet; 52: secondary air outlet;

60: air inlet cavity; 61: air inlet end; 62: air outlet end;

70: burner;

80: intake valve.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "upper", "lower", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The gas nozzle for a gas cooker according to the embodiment of the first aspect of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 4, the gas nozzle for a gas cooker according to the embodiment of the present invention includes: a main body 10, on which are formed: an air intake chamber 60, a primary mixing chamber 20, a primary air injection Channel 30 , secondary air injection channel 40 and secondary mixing chamber 50 .

Specifically, the air intake cavity 60 is disposed at one end of the main body 10 , and the air intake cavity 60 penetrates through the main body 10 in the axial direction. The primary mixing chamber 20 is disposed in the main body 10 and communicates with the intake chamber 60 . The primary air injection channel 30 runs through the main body 10 along the circumference and communicates with the primary mixing chamber 20 . The secondary mixing chamber 50 is disposed at the other end of the main body 10 , the secondary mixing chamber 50 penetrates along the axial direction of the main body 50 and communicates with the primary mixing chamber 20 . The secondary air injection channel 40 runs through the circumferential direction of the main body 10, and the secondary air injection channel 40 is respectively connected to the primary mixing chamber 20 and the secondary mixing chamber 50 and is arranged in the primary mixing chamber 20 and the secondary mixing chamber. Between 50.

Therefore, according to the gas nozzle for the gas stove according to the embodiment of the utility model, by adding multi-stage air injection channels on the gas nozzle, the gas nozzle can inject more air, and the injected air can be combined with the gas More fully mixed, the gas burns after passing through the gas nozzle, which can effectively reduce the content of carbon monoxide in the combustion flue gas, improve the safety of the gas nozzle, and also reduce or eliminate the generation of yellow flames during the gas combustion process.

It should be noted that the gas nozzle is usually used in a gas cooker and is located between the intake valve of the gas cooker and the burner, and the gas nozzle mixes the gas discharged from the intake valve with air and delivers it to the burner for combustion. Among them, the air intake chamber 60 is used to introduce gas, the primary air injection channel 30 and the secondary air injection channel 40 are used to inject air respectively, and the primary air injection channel 30 and the air intake cavity 60 are respectively mixed with the primary air injection channel. The cavity 20 is connected, and the air introduced from the primary air introduction channel 30 and the gas introduced from the intake cavity 60 can be mixed in the primary mixing cavity 20 to form a premixed gas. The premixed gas flows into the secondary mixing chamber 50 from the primary mixing chamber 20, and in the process of flowing into the secondary mixing chamber 50, it is further mixed with the air injected from the secondary air injection channel 50 and discharged from the combustion, which further improves the Combustion efficiency and safety of gas.

According to an embodiment of the present invention, the primary mixing chamber 20 includes a primary air inlet 21 and a primary air outlet 22, the primary air inlet 21 is in communication with the air inlet 60, the primary air outlet 22 is connected to the secondary The mixing chamber 50 is turned on. The primary air injection channel 30 includes a first air inlet 31 and a first air outlet 32, the first air outlet 32 is in communication with the primary air intake port 21, the primary air injection channel 30 and the primary mixing chamber 20 A first angle A is formed between them.

The secondary mixing chamber 50 includes a secondary air inlet 51 and a secondary air outlet 52 , the secondary air inlet 51 is connected to the primary air outlet 22 , and the secondary air outlet 52 is connected to the outside. The secondary air injection channel 40 includes a second air inlet 41 and a second air outlet 42, the second air outlet 42 is in communication with the primary air outlet 22 and the secondary air intake 51, and the secondary air injection channel 40 A second included angle B is formed with the primary mixing chamber 20 (as shown in FIG. 4 ).

Wherein, the range of the first included angle A and the second included angle B of the secondary air injection channel 40 is 20°˜100°. Preferably, the first included angle A is a right angle, and the second included angle B is an acute angle. Thus, the gas nozzle of this structure enables the air in the primary air injection channel 30 and the secondary air injection channel 40 to be consistent with the general flow direction of the gas in the primary mixing chamber 20 during injection, reducing the air The resistance during ejection further increases air ejection and increases the mixing of gas and air.

The specific number of primary air injection channels 30 and secondary air injection channels 40 can be reasonably adjusted according to needs. Optionally, according to an embodiment of the utility model, the primary air injection channels 30 and the secondary air injection channels There are a plurality of air injection channels 40 , and a plurality of primary air injection channels 30 and secondary air injection channels 40 are evenly arranged at intervals along the circumferential direction of the main body 10 . Specifically, there may be 2 to 8 primary air injection channels 30 and secondary air injection channels 40 . As a result, multiple primary air injection channels 30 and secondary air injection channels 40 take in air at the same time, which can further improve air injection, and each air injection channel is evenly distributed, so that the air and gas are mixed more evenly.

The shapes of the primary air injection channel 30 and the secondary air injection channel 40 are not particularly limited, as long as enough air can be injected, optionally, the primary air injection channel 30 and the secondary air injection channel The section of 40 is formed as a circular hole or a slotted hole.

In order to enable the gas ejected from the gas nozzle to have a higher velocity, according to an embodiment of the present invention, the air intake chamber 60 includes an air inlet end 61 and an air outlet end 62, and the diameter of the air inlet end 61 is larger than that of the air outlet end 62. diameter. That is to say, the inlet port 61 is connected to the outside world, the gas outlet port 62 is connected to the primary mixing chamber 20 , and the opening of the inlet chamber 60 is generally tapered. Thus, by gradually reducing the diameter of the passage of the intake chamber 60 from the outside to the inside, the speed of the gas ejected from the intake chamber 60 into the primary mixing chamber 20 can be increased, so that the combustion gas and the primary air are injected into the passage 30 The air is thoroughly mixed.

According to an embodiment of the present invention, the secondary mixing chamber 50 is formed in a column shape, and the diameter of the secondary mixing chamber 50 is greater than or equal to the diameter of the primary mixing chamber 20 . In other words, the capacity of the secondary mixing chamber 50 is greater than that of the primary mixing chamber 20. Since the diameter of the primary mixing chamber 20 is small and the gas flow rate is fast, the air injected in the primary air injection channel 30 is mixed in the primary stage. The chamber 20 can only be initially mixed with the gas, while the secondary mixing chamber 50 has a larger capacity and a slower gas flow rate. The premixed gas discharged from terminal 22 is thoroughly mixed. Thus, the mixing effect of air and gas in the gas nozzle can be further improved.

It can be understood that the gas nozzle in the embodiment of the utility model includes a primary air injection channel 30 and a secondary air injection channel 40, and if the gas nozzle structure allows, a tertiary air injection channel, Four-stage air injection channels and other multi-stage air injection channels can further improve the mixing effect of air and gas. The structure and technical effect of the multi-stage air injection channel are similar to those of the primary air injection channel 30 and the secondary air injection channel 40 in the above-mentioned embodiments of the present invention, so details are not repeated here.

As shown in FIG. 5 , the gas cooker according to the embodiment of the second aspect of the present invention includes: an intake valve 80 , a burner 70 and a gas nozzle.

Wherein, the gas nozzle is the gas nozzle used in the gas stove according to the above-mentioned embodiments, and the gas nozzle communicates with the intake valve 80 and the burner 70 respectively. In other words, the inlet port 21 of the primary mixing chamber 20 of the gas nozzle communicates with the intake valve 80 for transferring the gas in the intake valve 80 to the primary mixing chamber 20 and the secondary mixing chamber 51, and the secondary mixing chamber The chamber 51 communicates with the burner 70 to deliver the well-mixed gas and air to the burner 70 for combustion. Since the gas nozzle for a gas cooker according to the embodiment of the present utility model has the above-mentioned technical effects, the gas cooker according to the embodiment of the present utility model also has corresponding technical effects.

When the gas cooker according to the embodiment of the utility model is working, the user turns the knob of the gas cooker to let the intake valve 80 take in air, the gas enters through the primary mixing chamber 20 on the gas nozzle, and the air inside the gas cooker is transferred from the primary air The injection channel 30 and the secondary air injection channel 40 enter the gas nozzle. The gas entering the gas nozzle is initially mixed with the air entering from the primary air injection channel 30 in the primary mixing chamber 20, and the mixed gas after preliminary mixing reaches the gas outlet 22 of the primary mixing chamber 20, and After being further mixed with the air injected from the secondary air injection channel 40 in the secondary mixing chamber 51, it is transported from the secondary mixing chamber 51 to the burner for combustion.

Therefore, by adding multi-stage air injection channels on the gas nozzle, the gas nozzle can inject more air, and the injected air can be mixed with the gas more fully. After the gas passes through the gas nozzle, it can be burned and can It effectively reduces the content of carbon monoxide in the combustion flue gas, improves the safety of the gas nozzle, and can also reduce or eliminate the generation of yellow flames during the gas combustion process.

Other configurations and operations of the gas cooker according to the embodiment of the present utility model are known to those skilled in the art and will not be described in detail here.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be construed as limitations of the present invention. The above-mentioned embodiments can be changed, modified, replaced and modified within the scope of the present utility model under the principle and purpose.

Claims (10)

1. A gas nozzle for a gas cooker, characterized in that it comprises: a main body, on which the main body is formed: an air intake cavity, the air intake cavity is arranged at one end of the main body, and the air intake cavity penetrates along the axial direction of the main body; a primary mixing chamber, the primary mixing chamber is arranged in the main body and communicated with the air intake chamber; A primary air injection channel, the primary air injection channel penetrates along the circumference of the main body and communicates with the primary mixing chamber; a secondary mixing chamber, the secondary mixing chamber is arranged at the other end of the main body, the secondary mixing chamber penetrates along the axial direction of the main body and communicates with the primary mixing chamber; and Secondary air injection channel, the secondary air injection channel penetrates along the circumference of the main body, the secondary air injection channel is respectively connected to the primary mixing chamber and the secondary mixing chamber and is located at between the primary mixing chamber and the secondary mixing chamber. 2. The gas nozzle for gas cooker according to claim 1, characterized in that, the primary mixing chamber includes a primary air inlet and a primary gas outlet, and the primary air inlet is connected to the inlet The air cavity is connected, and the first-stage gas outlet is connected to the second-stage mixing chamber, The primary air injection channel includes a first air inlet and a first air outlet, the first air outlet communicates with the primary air inlet, and the primary air injection channel is connected to the air intake a first angle is formed between the cavities; The secondary mixing chamber includes a secondary air inlet and a secondary gas outlet, the secondary air inlet is connected to the primary gas outlet, and the secondary gas outlet is connected to the outside world, The secondary air injection channel includes a second air inlet and a second air outlet, the second air outlet communicates with the primary air outlet and the secondary air intake, and the secondary air injection channel A second included angle is formed with the primary mixing chamber. 3. The gas nozzle for a gas stove according to claim 2, characterized in that, the range of the first included angle and the second included angle is 20°-100°. 4. The gas nozzle for a gas cooker according to claim 2, characterized in that there are a plurality of said primary air injection channels and secondary air injection channels, and a plurality of said primary air injection channels The passages and secondary air injection passages are evenly spaced along the circumference of the main body. 5 . The gas nozzle for a gas cooker according to claim 4 , characterized in that there are 2 to 8 said primary air injection channels and secondary air injection channels. 6 . 6 . The gas nozzle for a gas stove according to claim 1 , wherein the cross-sections of the primary air injection channel and the secondary air injection channel are formed as circular holes or slotted holes. 7. The gas nozzle for a gas cooker according to any one of claims 1-6, wherein the air inlet cavity includes an air inlet end and an air outlet end, and the diameter of the air inlet end is larger than that of the air outlet end diameter. 8 . The gas nozzle for a gas cooker according to claim 7 , wherein the secondary mixing chamber is formed in a column shape, and the diameter of the secondary mixing chamber is greater than or equal to the diameter of the primary mixing chamber. 9 . The gas nozzle for a gas stove according to claim 3 , wherein the first included angle and the second included angle are acute angles. 10. A gas stove, characterized in that it comprises: Intake valve; burners; and According to the gas nozzle for a gas stove according to any one of claims 1-9, the gas nozzle communicates with the intake valve and the burner respectively.

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