Combustor

Abstract

The utility model provides a burner, and relates to the technical field of cooking utensils. The burner comprises a base plate, a nozzle, an injection pipe and a heat-insulation energy-gathering part, the nozzle and the injection pipe are arranged in the base plate, the nozzle extends into the injection pipe, an air door opening is formed between the nozzle and the injection pipe, an air inlet is formed in the base plate, the air inlet is formed below the air door opening, the heat-insulation energy-gathering part is arranged on the peripheral side of the air inlet, and the heat-insulation energy-gathering part is provided with an injection cavity. The injection cavity communicates with the air inlet and the air door opening. Compared with an original injection space in the whole base plate, the injection space is smaller due to the arrangement of the injection cavity, air in the injection cavity can be quickly consumed after injection, the air injection speed is increased through the pressure difference between the interior and the exterior of the injection cavity, and the injection capacity and the energy efficiency of the combustor are improved advantageously. In addition, through the arrangement of the injection cavity, the flowability of injected air is higher, the air flows to continuously wash the nozzle, the nozzle is effectively cooled, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to a burner. Background Technology

[0002] The burner using the direct-insertion valve in the prior art includes a chassis, a direct-insertion valve and an ejector tube. The direct-insertion valve and the ejector tube are located inside the chassis. The direct-insertion valve is connected to the ejector tube. The periphery of the direct-insertion valve and the ejector tube is open. The internal space of the chassis is large, and the ejection effect of the ejector tube is not good enough.

[0003] The ejector tube is equipped with a limiting structure. The nozzle of the direct-insertion valve is inserted into the limiting structure and is limited by the limiting structure. Since the limiting structure and the ejector tube are usually an integral structure, the thickness of the limiting structure is usually large, resulting in poor heat dissipation. The nozzle is located in a narrow high-temperature zone, which leads to a high temperature, and also makes the valve body temperature high, affecting the service life of the direct-insertion valve. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology, such as the open periphery of the ejector tube and the direct-insertion valve, the large internal space of the chassis, and the insufficient ejection effect, and to provide a burner.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a burner, which includes a chassis, a nozzle, an ejector tube, and a heat-insulating energy-concentrating component. The nozzle and the ejector tube are disposed in the chassis, with the nozzle extending into the ejector tube. An air inlet is provided between the nozzle and the ejector tube, and an air inlet is provided on the chassis, located below the air inlet.

[0007] The heat insulation and energy-concentrating component is disposed on the outer periphery of the air inlet, and the heat insulation and energy-concentrating component has an ejector cavity, which connects the air inlet and the air door.

[0008] In this design, the nozzle and ejector tube are located within the chassis. The nozzle extends into the ejector tube, and an air inlet is positioned between them. An air inlet is located on the chassis, below the air inlet. During operation, the nozzle injects combustion gas into the ejector tube and ejects air. The ejected air enters the chassis through the air inlet, then passes through the air inlet and into the ejector tube to complete the ejection process. A heat-insulating energy-concentrating component with an ejection chamber is installed on the outer periphery of the air inlet. This ejection chamber is smaller than the original ejection space within the entire chassis, allowing for rapid consumption of the air after ejection. The pressure difference between the inside and outside of the ejection chamber accelerates the ejected air velocity, improving the burner's ejection capacity and energy efficiency. Furthermore, the ejection chamber enhances the airflow, continuously scouring the nozzle and effectively cooling it, thus extending its service life.

[0009] Preferably, one end of the ejector tube has an opening, the heat insulation and energy-concentrating component includes a limiting plate, the limiting plate covers the opening, the limiting plate has a nozzle hole, the nozzle is inserted into the nozzle hole, and the limiting plate has an air door.

[0010] In this solution, by setting an opening at one end of the ejector tube and covering the opening with a limiting plate, the limiting plate can be made thinner and dissipates heat more easily compared to a one-piece molded limiting structure. The nozzle orifice can also be more easily inserted into the inner side of the limiting plate in the thickness direction, so that the periphery of the nozzle orifice is not blocked. The nozzle orifice is in a semi-open space, which makes it easier to dissipate heat. When the ejected air enters the ejector tube, it repeatedly cools the nozzle, thereby reducing the temperature of the nozzle and extending the life of the direct insertion valve.

[0011] Preferably, the limiting plate has a sidewall portion on its left and / or right sides, the sidewall portion extending from the limiting plate toward the nozzle, and the sidewall portion and the limiting plate enclosing each other to form the ejection cavity.

[0012] In this design, the left or right sidewall of the limiting plate is provided, or the left and right sides of the limiting plate are provided. The sidewall extends from the limiting plate toward the nozzle, so that the sidewall and the limiting plate can surround the nozzle to form an ejection cavity. The sidewall can enhance the enclosure effect on both sides of the air inlet, further improving the ejection effect and heat dissipation effect.

[0013] Preferably, the upper side of the limiting plate is further provided with a top wall portion, which is located directly above the air inlet, and the top wall portion and the limiting plate together form the ejection cavity.

[0014] In this solution, by setting a top wall portion directly above the air inlet, the top wall portion and the limiting plate enclose the ejector cavity, which can enhance the enclosure effect above the air inlet. The combination of the top wall portion and the limiting plate makes the ejector cavity more effective and also improves the heat dissipation effect.

[0015] Preferably, the heat-insulating energy-concentrating component includes two sidewalls and a top wall. The two sidewalls are respectively located on the left and right sides of the air inlet, and the top wall is located directly above the air inlet. The two sidewalls and the top wall together form the ejector cavity.

[0016] In this solution, the heat insulation and energy-concentrating component can also include two side walls and a top wall. The two side walls are respectively located on the left and right sides of the air inlet, and the top wall is located directly above the air inlet, thereby forming a three-sided enclosure, which makes the enclosure effect of the ejector cavity better and further improves the ejection effect and heat dissipation effect.

[0017] Preferably, the heat-insulating energy-concentrating component includes two sidewall portions and a front wall portion, the front wall portion being located on the side of the air inlet away from the ejector tube, and the two sidewall portions and the front wall portion enclosing each other to form the ejector cavity.

[0018] In this design, the ejector cavity can also be formed by two side walls and a front wall. The front wall is located on the side of the air inlet away from the ejector tube, which can enhance the enclosure effect on the side of the air inlet away from the ejector tube and further improve the ejection effect and heat dissipation effect.

[0019] Preferably, the heat-insulating energy-concentrating component further includes a rear wall portion, which is disposed on the side of the air inlet near the ejector tube. The front wall portion and the rear wall portion are disposed opposite to each other, and the rear wall portion, the front wall portion, and the two side wall portions enclose and form the ejector cavity.

[0020] In this design, a rear wall can be provided on the side of the air inlet near the ejector tube. The rear wall and the front wall are positioned opposite each other, and the rear wall, the two side walls, and the front wall together form an ejector cavity. The four-sided enclosure can further enhance the enclosure effect, thereby further improving the ejection effect and heat dissipation effect.

[0021] Preferably, the front wall portion is provided with a limiting portion that matches the shape of the nozzle, and the nozzle is accommodated in the limiting portion.

[0022] In this design, a limiting part matching the shape of the nozzle is provided on the front wall. The nozzle is accommodated in the limiting part, which adapts to the shape of the valve body. This limiting part can limit the nozzle, prevent it from moving, and also increase heat transfer and enhance the heat dissipation effect of the nozzle.

[0023] Preferably, the bottom end of the heat-insulating and energy-concentrating component is attached to the chassis and detachably connected to the chassis.

[0024] In this solution, by attaching the lower end of the heat insulation and energy-concentrating component to the chassis, the heat transfer effect of the heat insulation and energy-concentrating component to the chassis can be improved, thereby further enhancing the heat dissipation effect. By detachably connecting the heat insulation and energy-concentrating component to the chassis, the fixing effect of the heat insulation and energy-concentrating component is improved, preventing the heat insulation and energy-concentrating component from shaking during use.

[0025] Preferably, the lower end of the heat-insulating and energy-concentrating component is provided with a flange, and the flange is threadedly connected to the chassis.

[0026] In this design, a flange is provided at the lower end of the heat insulation and energy-concentrating component, and the flange is threaded to the chassis, which makes it easier to install and disassemble the heat insulation and energy-concentrating component and the chassis.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] By installing a heat-insulating energy-concentrating component on the outer periphery of the air inlet, which includes an ejector cavity, the ejector space is smaller than the original ejector space within the entire chassis. After ejection, the air within the ejector cavity is rapidly consumed, and the pressure difference inside and outside the cavity accelerates the ejected air velocity, thus improving the burner's ejection capacity and energy efficiency. Furthermore, the ejector cavity enhances the airflow, continuously washing the nozzle and effectively cooling it, extending its service life. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the burner according to Embodiment 1 of the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram of the heat insulation and energy-concentrating component according to Embodiment 1 of this utility model.

[0031] Figure 3 This is a three-dimensional structural diagram of the heat insulation and energy-concentrating component according to Embodiment 2 of this utility model.

[0032] Figure 4 This is a three-dimensional structural diagram of the heat insulation and energy-concentrating component according to Embodiment 3 of this utility model.

[0033] Figure 5 This is a cross-sectional view of the heat-insulating and energy-concentrating component according to Embodiment 3 of the present invention.

[0034] Figure 6 This is a three-dimensional structural diagram of the heat insulation and energy-concentrating component according to Embodiment 4 of this utility model.

[0035] Figure 7 This is a three-dimensional structural diagram of the heat insulation and energy-concentrating component according to Embodiment 5 of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] Burner 100

[0038] Chassis 200

[0039] Air inlet 210

[0040] Nozzle 300

[0041] ejector tube 400

[0042] 500 heat insulation and energy-concentrating components

[0043] Limiting plate 510

[0044] 511 Wind Gate

[0045] Side wall portion 520

[0046] Top wall part 530

[0047] Anterior wall portion 540

[0048] Limiting part 541

[0049] Rear wall portion 550

[0050] 560° Flip

[0051] 570 flow guide

[0052] 600 ejector chamber Detailed Implementation

[0053] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the following embodiments.

[0054] Example 1

[0055] like Figure 1 and Figure 2 As shown, this utility model provides a burner 100, which includes a chassis 200, a nozzle 300, an ejector tube 400, and a heat-insulating energy-concentrating component 500. The nozzle 300 and the ejector tube 400 are disposed within the chassis 200, with the nozzle 300 extending into the ejector tube 400. An air inlet 511 is provided between the nozzle 300 and the ejector tube 400. An air inlet 210 is provided on the chassis 200, located below the air inlet 511. The heat-insulating energy-concentrating component 500 is disposed on the outer periphery of the air inlet 210 and has an ejector cavity 600 that connects the air inlet 210 and the air inlet 511.

[0056] In operation, the nozzle 300 injects gas into the ejector tube 400 and ejects air. The ejected air enters the chassis 200 from the air inlet 210, and then enters the ejector tube 400 from the chassis 200 through the air inlet 511 to complete the ejection. A heat-insulating energy-concentrating component 500 with an ejection cavity 600 is installed on the outer periphery of the air inlet 210. Compared to the original ejection space inside the entire chassis 200, the ejection space is smaller, allowing for faster consumption of the air within the ejection cavity 600 after ejection. The pressure difference inside and outside the ejection cavity 600 accelerates the ejected air velocity, which helps improve the ejection capacity and energy efficiency of the burner 100. Furthermore, the ejection cavity 600 enhances the airflow, continuously scouring the nozzle 300 and effectively cooling it, thus extending its service life.

[0057] One end of the ejector tube 400 has an opening. The heat-insulating energy-concentrating component 500 includes a limiting plate 510, which covers the opening. The limiting plate 510 has a nozzle 300 hole, and the nozzle 300 is inserted into the nozzle 300 hole. An air inlet 511 is provided on the limiting plate 510. By providing an opening at one end of the ejector tube 400 and covering the opening with the limiting plate 510, the limiting plate 510 can be made thinner and easier to dissipate heat compared to a one-piece molded limiting structure. The nozzle 300 hole can also be more easily inserted into the inner side of the limiting plate 510 in the thickness direction, so that the periphery of the nozzle 300 hole is not blocked. The nozzle 300 hole is in a semi-open space, which facilitates heat dissipation. When the ejected air enters the ejector tube 400, it repeatedly cools the nozzle 300, thereby reducing the temperature of the nozzle 300 and extending the life of the direct-insertion valve.

[0058] like Figure 2 As shown, the left and right sides of the limiting plate 510 are provided with sidewall portions 520. The sidewall portions 520 extend from the limiting plate 510 toward the nozzle 300. The sidewall portions 520 and the limiting plate 510 enclose the ejection cavity 600. The sidewall portions 520 can enhance the enclosure effect on both sides of the air inlet 210, further improving the ejection effect and heat dissipation effect.

[0059] Example 2

[0060] The structure of this embodiment is basically the same as that of embodiment 1, and the same structure will not be described in detail. The difference is that:

[0061] like Figure 3 As shown, in this embodiment, the right side of the limiting piece 510 is provided with a sidewall portion 520. In other embodiments, the sidewall portion 520 may only be provided on the left side of the limiting piece 510.

[0062] Example 3

[0063] The structure of this embodiment is basically the same as that of embodiment 1, and the same structure will not be described in detail. The difference is that:

[0064] like Figure 4 and Figure 5 As shown, in this embodiment, a top wall portion 530 is also provided on the upper side of the limiting plate 510. The top wall portion 530 is located directly above the air inlet 210, and the top wall portion 530 and the limiting plate 510 enclose and form an ejector cavity 600. By providing the top wall portion 530 located directly above the air inlet 210, and the top wall portion 530 and the limiting plate 510 enclosing and forming the ejector cavity 600, the enclosure effect at the upper part of the air inlet 210 can be enhanced. The cooperation between the top wall portion 530 and the limiting plate 510 makes the ejection effect of the ejector cavity 600 better, and also improves the heat dissipation effect.

[0065] The heat-insulating and energy-concentrating component 500 includes two side wall portions 520 and a top wall portion 530. The two side wall portions 520 are respectively located on the left and right sides of the air inlet 210, and the top wall portion 530 is located directly above the air inlet 210. The two side wall portions 520 and the top wall portion 530 enclose and form an ejector cavity 600, thereby forming a three-sided enclosure, which makes the enclosure effect of the ejector cavity 600 better and further improves the ejection effect and heat dissipation effect.

[0066] In this embodiment, the left sidewall portion 520 is not connected to the limiting piece 510; only the right sidewall portion 520 is connected to the limiting piece 510. The upper ends of both sidewall portions 520 are connected to the top wall portion 530. In other embodiments, the left sidewall portion 520 can be connected to the limiting piece 510, or the top wall portion 530 can be connected to the limiting piece 510. Those skilled in the art can choose a suitable connection method according to actual needs.

[0067] The bottom end of the heat insulation and energy-concentrating component 500 is attached to and detachably connected to the chassis 200. By attaching the bottom end of the heat insulation and energy-concentrating component 500 to the chassis 200, the heat transfer effect from the heat insulation and energy-concentrating component 500 to the chassis 200 can be improved, further enhancing the heat dissipation effect. By detachably connecting the heat insulation and energy-concentrating component 500 to the chassis 200, the fixation effect of the heat insulation and energy-concentrating component 500 is improved, preventing the heat insulation and energy-concentrating component 500 from shaking during use.

[0068] In other embodiments, the lower end of the heat insulation and energy-concentrating component 500 may not be attached to the chassis 200. The bottom end of the heat insulation and energy-concentrating component 500 may be slightly higher than the air inlet 210, thereby facilitating the push-pull adjustment of the heat insulation and energy-concentrating component 500 during installation.

[0069] The lower end of the heat insulation and energy-concentrating component 500 is provided with a flange 560, which is threadedly connected to the chassis 200, thereby making it easier to install and disassemble the heat insulation and energy-concentrating component 500 and the chassis 200.

[0070] In other embodiments, snap-fit ​​connections may also be used, or other detachable structures of the heat-insulating energy-concentrating component 500 and chassis 200 may be used, as deemed suitable by those skilled in the art.

[0071] The heat-insulating energy-concentrating component 500 also includes a flow guide 570, which extends obliquely toward the ejector tube 400 to guide airflow, enhance air flow, and reduce valve body temperature.

[0072] Example 4

[0073] The structure of this embodiment is basically the same as that of embodiment 1, and the same structure will not be described in detail. The difference is that:

[0074] like Figure 6 As shown, in this embodiment, the heat-insulating energy-concentrating component 500 includes two sidewall portions 520 and a front wall portion 540. The front wall portion 540 is located on the side of the air inlet 210 away from the ejector tube 400. The two sidewall portions 520 and the front wall portion 540 together form an ejector cavity 600. The front wall portion 540 being located on the side of the air inlet 210 away from the ejector tube 400 enhances the enclosure effect of the side of the air inlet 210 away from the ejector tube 400, further improving the ejection effect and heat dissipation effect.

[0075] In this embodiment, the heat insulation and energy-concentrating component 500 is not provided with a limiting piece 510, and the heat insulation and energy-concentrating component 500 is not connected to the ejector tube 400.

[0076] The front wall portion 540 is provided with a limiting portion 541 that matches the shape of the nozzle 300. The nozzle 300 is accommodated in the limiting portion 541. The limiting portion 541 adapts to the shape of the valve body, which can limit the nozzle 300, prevent the nozzle 300 from moving, and also increase heat transfer and enhance the heat dissipation effect of the nozzle 300.

[0077] In this embodiment, the limiting part 541 is a notch provided at the upper end of the front wall part 540. In other embodiments, the limiting part 541 may not be provided on the front wall part 540. Those skilled in the art can select the specific structure and setting position of the limiting part 541 according to actual needs.

[0078] Example 5

[0079] The structure of this embodiment is basically the same as that of embodiment 4, and the same structure will not be described again. The difference is that:

[0080] The heat insulation and energy-concentrating component 500 also includes a rear wall portion 550, which is located on the side of the air inlet 210 near the ejector tube 400. The front wall portion 540 and the rear wall portion 550 are arranged opposite each other. The rear wall portion 550, the front wall portion 540 and the two side wall portions 520 enclose and form an ejector cavity 600. The four-sided enclosure can further improve the enclosure effect, and further improve the ejection effect and heat dissipation effect.

[0081] The edge of the air inlet 210 is provided with an upward protrusion. The protrusion is located inside the heat insulation and energy-concentrating component 500. The height of the protrusion is higher than the bottom of the heat insulation and energy-concentrating component 500, which can limit the displacement of the heat insulation and energy-concentrating component 500 and play a limiting role in the heat insulation and energy-concentrating component 500.

[0082] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0083] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A burner, characterized by The burner includes a chassis, a nozzle, an ejector tube, and a heat-insulating energy-concentrating component. The nozzle and the ejector tube are located inside the chassis, with the nozzle extending into the ejector tube. An air inlet is provided between the nozzle and the ejector tube. An air inlet is provided on the chassis and is located below the air inlet. The heat insulation and energy-concentrating component is disposed on the outer periphery of the air inlet, and the heat insulation and energy-concentrating component has an ejector cavity, which connects the air inlet and the air door.

2. The burner of claim 1, wherein One end of the ejector tube has an opening, the heat insulation and energy-concentrating component includes a limiting plate, the limiting plate covers the opening, the limiting plate has a nozzle hole, the nozzle is inserted into the nozzle hole, and the limiting plate has an air door.

3. The burner as described in claim 2, characterized in that, The limiting plate has a sidewall portion on its left and / or right sides, the sidewall portion extending from the limiting plate toward the nozzle, and the sidewall portion and the limiting plate enclosing each other to form the ejection cavity.

4. The burner of claim 2, wherein The upper side of the limiting plate is also provided with a top wall portion, which is located directly above the air inlet. The top wall portion and the limiting plate together form the ejection cavity.

5. The burner of claim 1, wherein The heat-insulating energy-concentrating component includes two side walls and a top wall. The two side walls are respectively located on the left and right sides of the air inlet, and the top wall is located directly above the air inlet. The two side walls and the top wall together form the ejector cavity.

6. The burner of claim 1, wherein The heat-insulating energy-concentrating component includes two sidewalls and a front wall. The front wall is located on the side of the air inlet away from the ejector tube, and the two sidewalls and the front wall together form the ejector cavity.

7. The burner of claim 6, wherein The heat-insulating energy-concentrating component also includes a rear wall portion, which is located on the side of the air inlet near the ejector tube. The front wall portion and the rear wall portion are arranged opposite to each other, and the rear wall portion, the front wall portion, and the two side wall portions enclose and form the ejector cavity.

8. The burner of claim 6, wherein The front wall portion is provided with a limiting portion that matches the shape of the nozzle, and the nozzle is accommodated in the limiting portion.

9. The burner of claim 1, wherein The bottom end of the heat-insulating and energy-concentrating component is attached to the chassis and detachably connected to the chassis.

10. The burner of claim 9, wherein The lower end of the heat insulation and energy-concentrating component is provided with a flange, which is threadedly connected to the chassis.

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