Ejecting pipe structure of stove burner and infrared and atmospheric combined stove

Abstract

An injection pipe structure of a stove burner comprises a furnace end body and an injection pipe set, the furnace end body comprises an outer shell and an inner shell, the inner shell is arranged in an inner cavity of the outer shell, an annular first gas mixing cavity is formed between the inner shell and the outer shell, and the injection pipe set comprises first injection pipes. The first injection pipe transversely extends into the first gas mixing cavity and is bent in the extending direction of the outer side of the inner shell so that the first injection pipe can bypass the side wall of the inner shell. The utility model provides an injection pipe structure of a stove burner and an infrared and atmospheric combined stove, which can enable mixed gas to be uniformly distributed in a furnace end body and ensure normal cooking use of a gas stove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gas -cooker belongs to the technical field, concretely relates to a kind of injection pipe structure of stove burner and infrared and atmospheric combined cooker. BACKGROUND

[0002] With the increasingly development of society, people's living standards are also improving, gas stove gradually becomes one of the kitchen appliances of every family, gas stove can be divided into atmospheric gas stove, infrared gas stove according to its characteristics, etc., which is combined by burner, burner, injection pipe group and gas valve, gas is injected into injection pipe by gas valve, air is sucked into injection pipe by negative pressure, gas and air are mixed in injection pipe group and then input and evenly spread into the mixed gas cavity of burner, and then the mixed gas is ignited by ignition needle;Conventional gas stove, burner includes outer mixed gas cavity and inner mixed gas cavity, injection pipe group includes outer injection pipe and inner injection pipe, mixed gas enters outer mixed gas cavity through outer injection pipe, and enters inner mixed gas cavity through inner injection pipe;The problem is that the above structure of gas stove, the outer injection pipe is installed on the mounting hole of the outer side wall of burner, the tail section of outer injection pipe does not extend into outer mixed gas cavity, or the outer injection pipe is straight, and the tail section extends to the inner side wall close to outer mixed gas cavity;When gas stove is used, the mixed gas injected into outer mixed gas cavity by outer injection pipe will be directly shot on the inner wall of outer mixed gas cavity in front of outer injection pipe, part of mixed gas directly hits on the inner wall of outer mixed gas cavity and spreads to all directions, forming turbulent flow phenomenon, so that mixed gas is not evenly distributed in outer mixed gas cavity, resulting in that the gas output of each position of burner is not consistent, the flame generated by burner is not the same, so that the heating of cooking utensils is not uniform, and the normal cooking use of gas stove is affected.

[0003] Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at at least overcoming one of the deficiencies of prior art, and provides a kind of injection pipe structure of stove burner and infrared and atmospheric combined cooker, which can make mixed gas evenly distributed in burner body, ensure the normal cooking use of gas stove.

[0005] To achieve the above object, the technical scheme provided by the utility model embodiment is:

[0006] The application discloses a structure of an ejector pipe of a cooking stove burner, which comprises a burner head body and an ejector pipe group.

[0007] The first ejector pipe comprises a pressure increasing section, a mixing section and a diffusion section arranged in sequence along the airflow direction, the pressure increasing section is arranged outside the first mixing cavity, the diffusion section is arranged inside the first mixing cavity, the mixing section extends into the first mixing cavity in a transverse direction and the initial part of the mixing section extending into the first mixing cavity is opposite to the side of the inner shell, and the mixing section and the diffusion section are arranged in a curved manner and extend around the outside of the inner shell and in the first mixing cavity.

[0008] The first ejector pipe further comprises a first air inlet and a first air outlet, the first air inlet is arranged on the pressure increasing section and communicates with an external air source, and the first air outlet is arranged on the diffusion section and the air outlet direction thereof is towards the inside of the outer shell.

[0009] The first ejector pipe is in a horn shape, and the radial dimension of the first ejector pipe gradually increases from the mixing section to the diffusion section.

[0010] The inner shell is in a hollow shape and forms a hollow cavity, the ejector pipe group further comprises a second ejector pipe, the second ejector pipe extends into the hollow cavity in a transverse direction through the first mixing cavity and the tail section of the second ejector pipe is bent upwards and extends to the top opening of the hollow cavity, the second ejector pipe comprises a second air inlet and a second air outlet, the second air inlet is arranged at the leading end of the second ejector pipe and located outside the burner head body and communicates with an external air source, and the second air outlet is arranged at the tail end of the second ejector pipe and the air outlet direction thereof is towards the upper part of the hollow cavity.

[0011] The application further discloses an infrared and atmospheric combined cooking stove, which comprises the structure of the ejector pipe of the cooking stove burner.

[0012] The infrared burner is arranged on the burner head body and communicates with the first mixing cavity, the middle part of the infrared burner is in a hollow shape, and the open fire burner is arranged on the burner head body and located at the middle part of the infrared burner and communicates with the second ejector pipe.

[0013] The infrared burner comprises an infrared radiation type ceramic plate, and the infrared radiation type ceramic plate covers the top opening of the first mixing cavity.

[0014] The open fire burner comprises a divided fire cap, and the divided fire cap is arranged on the second ejector pipe and located at the second air outlet.

[0015] The infrared and atmospheric combined stove further comprises an ignition component and an extinguishing protection component, and the stove head body is provided with a fixed support, the fixed support is arranged on the second injection pipe and close to the open fire burner, and the ignition component and the extinguishing protection component are arranged on the fixed support.

[0016] The stove has the following beneficial effects:

[0017] By adopting the injection pipe structure of the stove burner, when the first injection pipe extends into the first mixed gas cavity, the straight section of the first injection pipe can extend around the outside of the inner shell through bending, and the mixed gas entering the first mixed gas cavity through the first injection pipe will not be directly shot to the outside of the inner shell, avoiding the mixed gas directly hitting the side wall of the first mixed gas cavity, ensuring the uniform distribution of the mixed gas in the first mixed gas cavity, avoiding the diffusion of the mixed gas to the surrounding and the formation of turbulence, making the gas output of each position on the burner uniform and the same flame generated, and making the cooking utensils placed on the gas stove evenly heated, and ensuring the normal cooking use of the gas stove.

[0018] In addition, by adopting the injection pipe structure of the stove burner, the first injection pipe can avoid the inner shell through bending, and the first injection pipe can also adapt to the stove head body when the outer shell, the inner shell and the first mixed gas cavity are designed to be small, and the application range of the first injection pipe is wider. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the infrared and atmospheric combined stove of an embodiment of the utility model.

[0020] Figure 2 It is an exploded view of the infrared and atmospheric combined stove of an embodiment of the utility model.

[0021] Figure 3 It is an exploded view of the infrared and atmospheric combined stove of an embodiment of the utility model.

[0022] Figure 4 It is a top view of the injection pipe group installed on the stove head body of an embodiment of the utility model.

[0023] Figure 5 It is a sectional view of the first injection pipe group of an embodiment of the utility model.

[0024] Figure 6 It is a sectional view of the injection pipe group installed on the stove head body of an embodiment of the utility model.

[0025] Figure 7 It is a flow schematic view of the gas in the first injection pipe and the first mixed gas cavity of an embodiment of the utility model.

[0026] Figure 8The flow schematic diagram of gas in the second injection pipe is shown in an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0028] Referring to Figures 1-8The injection pipe structure of the stove burner includes a burner head body 1 and an injection pipe group. In the embodiment, the burner head body 1 includes an outer shell 11 and an inner shell 12. The vertical projections of the outer shell 11 and the inner shell 12 are both circular, and the radial dimension of the outer shell 11 is greater than the radial dimension of the inner shell 12. The inner shell 12 is fixed in the middle part of the inner cavity of the outer shell 11 by welding or other methods, so that the first mixed gas cavity 110 in the shape of a ring is formed between the two. The first mixed gas cavity 110 constitutes the outer mixed gas cavity of the stove burner. The injection pipe group includes a first injection pipe 21, which constitutes the outer injection pipe of the stove burner. The first injection pipe 21 extends horizontally into the first mixed gas cavity 110. The initial part of the first injection pipe 21 extending into the first mixed gas cavity 110 is opposite to the side part of the inner shell 12 in front and back. If the first injection pipe 21 continues to extend linearly into the burner head body 1 from the initial part, it will interfere with the inner shell 12. The first injection pipe 21 is bent to be arranged outside the inner shell 12 and extend in the first mixed gas cavity 110. Specifically, the first injection pipe 21 includes a booster section 210, a mixing section 211, and a diffusion section 212 arranged in sequence along the airflow direction. The booster section 210 is arranged outside the first mixed gas cavity 110. It communicates with the gas outlet of the gas valve and the external environment, and injects pressurized gas and air into the burner head body 1. The diffusion section 212 is arranged in the first mixed gas cavity 110. It guides the mixed gas into the first mixed gas cavity 110. The initial part of the mixing section 211 extending horizontally into the first mixed gas cavity 110 is the initial part of the first injection pipe 21 extending into the first mixed gas cavity 110, and it is opposite to the side part of the inner shell 12 in front and back. The mixing section 211 and the diffusion section 212 are bent and arranged outside the inner shell 12 and extend in the first mixed gas cavity 110. That is, the mixing section 211 and the diffusion section 212 of the first injection pipe 21 enter the first mixed gas cavity 110, turn right, and then turn left to correspond to the extension direction outside the inner shell 12, so that the first injection pipe 21 avoids the outer side of the inner shell 12. When the mixed gas enters the first mixed gas cavity 110 through the first injection pipe 21, it will not directly hit the side wall of the first mixed gas cavity 110, avoiding the mixed gas directly hitting the inner wall of the first mixed gas cavity 110, ensuring that the mixed gas is evenly distributed in the first mixed gas cavity 110, avoiding its diffusion to all directions and forming a turbulent flow phenomenon, making the gas outlet quantity of each position on the burner uniform and producing the same flame, allowing the cooking utensils placed on the gas stove to be heated uniformly, and ensuring the normal cooking use of the gas stove.

[0029] In addition, the injection pipe structure of the stove burner using the above technical solution, the first injection pipe 21 avoids the inner shell 12 by bending, and the first injection pipe 21 can also adapt to the burner head body 1 when the outer shell 11, the inner shell 12, and the first mixed gas cavity 110 are designed to be small in size. The application range of the first injection pipe 21 is wider.

[0030] Further, the first ejector pipe 21 further comprises a first air inlet 213 and a first air outlet 214, specifically, in the embodiment, the first air inlet 213 is arranged on the booster section 210 and communicates with the external gas source, i.e., the gas outlet end of the gas valve and the external environment, to provide the first ejector pipe 21 with gas and air, the first air outlet 214 is arranged on the diffusion section 212 and its air outlet direction is towards the inside of the outer shell 11, the diffusion section 212 does not extend to the axis of the first air inlet 213, and there is a certain angle between the first air outlet 214 and the side wall of the first mixing chamber 110, so that the mixed gas is directly sprayed onto the side wall of the first mixing chamber 110 when it comes out of the first ejector pipe 21 and bounces to the other side of the first mixing chamber 110, further ensuring the uniform distribution of the mixed gas in the first mixing chamber 110, which can be understood by those skilled in the art.

[0031] Further, the first ejector pipe 21 is trumpet-shaped, and the radial dimension of the first ejector pipe 21 gradually increases from the mixing section 211 to the diffusion section 212, specifically, the trumpet mouth has the effect of accelerating and guiding the air flow to be discharged, and through the trumpet mouth, the mixed gas in the first ejector pipe 21 can be guided into a specific channel, and a low-pressure area is formed at the first air outlet 214, so that the mixed gas forms a rotating air flow in this area, thereby accelerating the discharge speed of the mixed gas, and at the same time, due to the special nature of the rotating air flow, the flow direction of the mixed gas can also be effectively guided, which can be understood by those skilled in the art.

[0032] Further, in the embodiment, the inner shell 12 is hollow, and the ejector pipe group further comprises a second ejector pipe 22, the second ejector pipe 22 comprises a second air inlet 220 and a second air outlet 221, specifically, the middle part of the inner shell 12 forms a hollow cavity 120, the inner cavity of the second ejector pipe 22 constitutes an inner ejector cavity of the stove burner, the second ejector pipe 22 passes through the first mixing chamber 110 transversely and extends into the hollow cavity 120, the tail section of the second ejector pipe 22 is bent upwards and extends to the top opening of the hollow cavity 120, so that the mixed gas is supplied to the middle part of the stove body 1 through the second ejector pipe 22, the second air inlet 220 is arranged at the front end of the second ejector pipe 22 and located outside the stove body 1 and communicates with the external gas source, i.e., the gas outlet end of the gas valve and the external environment, to provide the second ejector pipe 22 with gas and air, the second air outlet 221 is arranged at the tail end of the second ejector pipe 22 and its air outlet direction is towards the upper part of the hollow cavity 120, so that the mixed gas is directly sprayed to the upper opening of the hollow cavity 120, ensuring that the mixed gas in the second ejector pipe 22 is smoothly injected into the middle part of the stove body 1, further ensuring the normal work of the stove burner, which can be understood by those skilled in the art.

[0033] An infrared and atmospheric combined stove comprises the ejector pipe structure of the stove burner of the above technical solution.

[0034] Further, the infrared and atmospheric combined stove further comprises an infrared burner and an open fire burner. Specifically, in the embodiment, the infrared burner is hollow in the middle and comprises an infrared radiation ceramic plate 3. The top of the first mixed gas cavity 110 is open. The infrared radiation ceramic plate 3 covers the top opening of the first mixed gas cavity 110 and communicates with the first mixed gas cavity 110. The mixed gas in the first mixed gas cavity 110 is combusted in the first mixed gas cavity 110 and heats the infrared radiation ceramic plate 3. The open fire burner comprises a divided fire cap 4 which is installed on the second gas outlet 221, communicates with the second ejector pipe 22 and is located in the middle of the infrared burner. The mixed gas in the second ejector pipe 22 is sprayed outwards through the divided fire cap 4 and combusted. Through the above technical scheme, the infrared and atmospheric combined stove can simultaneously perform infrared heating and direct heating. The infrared heating has the advantages of high thermal efficiency and low pollution. The direct heating has the advantages of easy ignition and concentrated fire. The various use requirements of users can be met and those skilled in the art can understand this.

[0035] Further, the infrared and atmospheric combined stove further comprises an ignition component 5 and an extinguishing protection component 6. Specifically, in the embodiment, the furnace head body 1 is provided with a fixed support 14 which is fixedly installed on the second ejector pipe 22 and close to the open fire burner. The ignition component 5 is preferably a ceramic ignition needle and is installed on the fixed support 14 and close to the divided fire cap 4 so as to ignite the mixed gas released by the open fire burner. The extinguishing protection component 6 is preferably a flame sensor and is installed on the fixed support 14 and close to the divided fire cap 4 so as to sense the flame and control the opening and closing of the gas valve. When the extinguishing protection component 6 is arranged on the infrared burner, the high temperature of the infrared radiation ceramic plate 3 sharply reduces the service life of the extinguishing protection component 6. Therefore, when the extinguishing protection component 6 is arranged on the open fire burner, the service life of the extinguishing protection component 6 can be increased to a certain extent and those skilled in the art can understand this.

[0036] The above is the preferred scheme of the present application, which shows and describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the description in the specification are only to illustrate the principle of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the present application which is defined by the appended claims and their equivalents.

Claims

1. A structure of a draft tube of a cooking burner, comprising a burner head body (1) and a draft tube group, characterized in that, The furnace head body (1) comprises an outer shell (11) and an inner shell (12), the inner shell (12) is arranged in the inner cavity of the outer shell (11) and together with the outer shell (11) forms a first mixed gas cavity (110) in the shape of a ring, the ejector pipe group comprises a first ejector pipe (21), the first ejector pipe (21) extends transversely into the first mixed gas cavity (110), the initial part of the first ejector pipe (21) extending into the first mixed gas cavity (110) is opposite to the front and back of the side of the inner shell (12), the first ejector pipe (21) is bent to extend around the outside of the inner shell (12) and extend in the first mixed gas cavity (110).

2. The structure of the draft tube of the gas burner of the cooking range according to claim 1, characterized in that, The first ejector pipe (21) comprises a booster section (210), a mixing section (211) and a diffusion section (212) arranged in sequence along the direction of the gas flow, the booster section (210) is arranged outside the first mixed gas cavity (110), the diffusion section (212) is arranged inside the first mixed gas cavity (110), the mixing section (211) extends transversely into the first mixed gas cavity (110) and the initial part of the mixing section (211) extending into the first mixed gas cavity (110) is opposite to the front and back of the side of the inner shell (12), the mixing section (211) and the diffusion section (212) are bent to extend around the outside of the inner shell (12) and extend in the first mixed gas cavity (110).

3. The structure of the draft tube of the gas burner of the cooking range according to claim 2, characterized in that, The first ejector pipe (21) further comprises a first gas inlet (213) and a first gas outlet (214), the first gas inlet (213) is arranged on the booster section (210) and communicates with an external gas source, the first gas outlet (214) is arranged on the diffusion section (212) and the gas outlet direction thereof is towards the inside of the outer shell (11).

4. The structure of the draft tube of the gas burner of the cooking range according to claim 2, characterized in that, The first ejector pipe (21) is in the shape of a horn, the radial dimension of the first ejector pipe (21) gradually increases from the mixing section (211) to the diffusion section (212).

5. The structure of the draft tube of the gas burner of the cooking range according to claim 1, characterized in that, The inner shell (12) is in the shape of a hollow and forms a hollow cavity (120), the ejector pipe group further comprises a second ejector pipe (22), the second ejector pipe (22) extends transversely through the first mixed gas cavity (110) and extends into the hollow cavity (120), the tail section of the second ejector pipe (22) is bent upwards and extends to the top opening of the hollow cavity (120), the second ejector pipe (22) comprises a second gas inlet (220) and a second gas outlet (221), the second gas inlet (220) is arranged at the leading end of the second ejector pipe (22) and is located outside the furnace head body (1) and communicates with an external gas source, the second gas outlet (221) is arranged at the tail end of the second ejector pipe (22) and the gas outlet direction thereof is towards the upper part of the hollow cavity (120).

6. An infrared and atmospheric combination range, characterized by, The ejector pipe structure comprising the cooktop burner as claimed in any one of claims 1-5.

7. The infrared and atmospheric combination range according to claim 6, characterized in that, The infrared and atmospheric combined cooktop comprises an infrared burner and an open flame burner, the infrared burner is arranged on the furnace head body (1) and communicates with the first mixed gas cavity (110), the middle part of the infrared burner is in the shape of a hollow, the open flame burner is arranged on the furnace head body (1) and is located in the middle part of the infrared burner and communicates with the second ejector pipe (22).

8. The infrared and atmospheric combination range as set forth in claim 7, wherein, The infrared burner comprises an infrared radiation ceramic plate (3) covering the top opening of the first mixed gas cavity (110).

9. The infrared and atmospheric combination range as set forth in claim 7, wherein, The open fire burner comprises a divided fire cover (4) arranged on the second ejector pipe (22) and located at the second gas outlet (221).

10. The infrared and atmospheric combination range as set forth in claim 6, wherein, The infrared and atmospheric combined stove further comprises an ignition component (5) and an extinguishing protection component (6), and the stove head body (1) is provided with a fixed support (14) arranged on the second ejector pipe (22) and close to the open fire burner, and the ignition component (5) and the extinguishing protection component (6) are arranged on the fixed support (14).

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