Combustor and gas stove

Abstract

The utility model discloses a burner which comprises an inner fire fuel gas shell, an outer fire fuel gas shell, an outer fire fuel gas shell and an inner fire fuel gas shell. The mounting channel is vertically arranged in the inner fire fuel gas shell, the outer wall of the mounting channel is in contact with fuel gas, the mounting channel forms an upper hole in the center of the top of the inner fire fuel gas shell, and a lower hole is formed in the center of the bottom of the inner fire fuel gas shell; and the temperature sensing probe is arranged in the mounting channel, partially extends out of the upper orifice and is used for detecting the temperature of the bottom of the pan, and the bottom end of the temperature sensing probe is connected with a signal transmission line and extends out of the lower orifice. The utility model further discloses a gas stove with the burner. The combustor has the advantages that interference caused by the fact that heat is conducted to the temperature sensing probe during combustion of the combustor can be effectively avoided, and the accuracy of the detection result of the temperature sensing probe is guaranteed.

Description

Technical Field

[0001] This utility model relates to a burner and a gas stove, belonging to the technical field of kitchen appliances. Background Technology

[0002] To prevent burners from dry-burning during use, detecting the temperature of the pot bottom with a temperature sensor is an effective method. Dry-burning refers to heating cookware without sufficient moisture, which can lead to dangerous situations such as burning food, fire, or damage to the cookware. Equipping the burner with a temperature sensor allows for real-time monitoring of the burner and its related components, triggering alarms or automatic shutdown when abnormally high temperatures are detected, thus preventing equipment damage or fire.

[0003] Currently, in existing technologies, the temperature sensor is mounted on top of the burner. Since the burner casing is at a high temperature during combustion, heat is conducted to the temperature sensor through thermal conduction, which interferes with the temperature sensor and reduces the accuracy of the detection results. Utility Model Content

[0004] The purpose of this invention is to provide a burner and a gas stove that can effectively avoid interference caused by heat conduction from the burner to the temperature sensor during combustion, thus ensuring the accuracy of the temperature sensor's detection results.

[0005] This utility model is achieved through the following technical solution.

[0006] A burner, comprising:

[0007] The internal combustion gas casing has an internal combustion hole at the top, and the gas flow direction inside is vertically upward.

[0008] The installation channel is vertically arranged inside the internal combustion gas casing and its outer wall is in contact with the gas. The installation channel forms an upper opening at the top center and a lower opening at the bottom center of the internal combustion gas casing.

[0009] A temperature sensing probe is installed in the mounting channel and partially extends out of the upper opening. It is used to detect the temperature of the bottom of the pot. A signal transmission line is connected to its bottom end and extends out of the lower opening.

[0010] As a further improvement of this utility model, the mounting channel has a plurality of heat dissipation fins on its outer wall, at least in the portion near the upper opening.

[0011] As a further improvement of this utility model, the heat dissipation fins extend vertically and are arranged circumferentially at intervals on the outer wall of the mounting channel.

[0012] As a further improvement of this utility model, a constriction tube structure is formed on the upper part of the internal combustion gas shell and corresponding to the heat dissipation fins. The cross-sectional area of ​​the constriction tube structure gradually decreases and then gradually increases from bottom to top, which is used to improve the gas flow velocity at the constriction tube structure.

[0013] As a further improvement of this utility model, the top of the inner flame gas casing is formed with a raised portion that surrounds the temperature sensing probe and gradually increases from the outside to the inside. The inner flame hole is arranged on the raised portion, so that the combustion direction of the flame at the inner flame hole is away from the temperature sensing probe.

[0014] As a further improvement of this utility model, the lower part of the installation channel has a limiting structure formed by the protrusion of the inner wall. The limiting structure allows the signal transmission line to pass through and can abut against the bottom end of the temperature sensing probe to prevent the temperature sensing probe from falling off from the lower opening.

[0015] As a further improvement of this utility model, an elastic reset member is provided inside the installation channel, which is sleeved outside the signal transmission line. The top end of the elastic reset member supports the bottom end of the temperature sensing probe, and the bottom end supports the limiting structure.

[0016] As a further improvement of this utility model, it also includes an outer flame gas casing, which is arranged around the inner flame gas casing and has an outer flame hole at its top.

[0017] As a further improvement of this utility model, it also includes an inner fire gas ejector tube and an outer fire gas ejector tube, wherein the outer fire gas ejector tube is connected to the lower part of the outer fire gas housing, and the inner fire gas ejector tube passes through the outer fire gas housing and is connected to the lower part of the inner fire gas housing.

[0018] A gas stove includes the burner and a gas valve, the gas valve being used to control the gas supplied to the burner.

[0019] The beneficial effects of this utility model are:

[0020] Because the installation channel is located inside the internal combustion gas casing, and its outer wall is in contact with the gas inside the internal combustion gas casing, the gas inside the gas casing can make full contact with the outer wall of the installation channel when it flows at high speed. Through heat conduction, some of the heat on the outer wall of the installation channel is carried away, which reduces the temperature of the installation channel. This avoids interference with the temperature detected by the temperature sensor due to the excessive temperature of the installation channel, and improves the accuracy of the temperature sensor detection results. Attached Figure Description

[0021] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0022] Figure 1 This is a schematic diagram of the burner's structure;

[0023] Figure 2 This is a cross-sectional schematic diagram of the burner;

[0024] Figure 3 for Figure 2 Cross-sectional view of AA. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0027] Implementation Case 1:

[0028] A burner, reference Figures 1-3 The system includes an inner fire gas casing 11, an installation channel 2, and a temperature probe 3. The inner fire gas casing 11 is structurally a hollow column with an inner fire hole 1a at its top. The gas flow direction inside is vertically upward, ensuring that the gas flows from bottom to top within the inner fire gas casing 11 and burns at the inner fire hole 1a at its top. The installation channel 2 is vertically positioned inside the inner fire gas casing 11, with its outer wall in contact with the gas inside. The installation channel 2 has an upper opening 21 at the top center and a lower opening 22 at the bottom center. The temperature probe 3 is positioned within the installation channel 2 and partially extends from the upper opening 21. The tip of the temperature probe 3 contacts the bottom of the pot to detect its temperature. Because the upper opening 21 is located at the top center of the inner fire gas casing 11, the tip of the temperature probe 3 contacts the exact center of the bottom of the pot, ensuring accurate detection. The bottom of the temperature probe 3 is connected to a signal transmission line 31, which extends from the lower opening 22 and connects to the corresponding device.

[0029] When the burner is burning, the flame at the inner fire hole 1a will make the temperature of the inner fire gas shell 11 high. The heat will be conducted to the installation channel 2, and the heat on the installation channel 2 will be conducted to the temperature sensor 3, thus interfering with the temperature detection of the temperature sensor 3.

[0030] In this embodiment, since the installation channel 2 is located inside the internal combustion gas casing 11 and its outer wall is in contact with the gas inside the internal combustion gas casing 11, the gas inside the gas casing can make full contact with the outer wall of the installation channel 2 when it flows at high speed. Through heat conduction, some of the heat on the outer wall of the installation channel 2 is carried away, which reduces the temperature of the installation channel 2. This avoids interference with the temperature detection of the temperature sensing probe 3 due to the excessive temperature of the installation channel 2, and improves the accuracy of the detection results of the temperature sensing probe 3.

[0031] In this embodiment, the installation channel 2 and the internal combustion gas casing 11 can be an integrated structure, or they can be fixed inside the internal combustion gas casing 11 by welding or threaded connection.

[0032] In this embodiment, the mounting channel 2 has multiple heat dissipation fins 24 on its outer wall, at least in the portion near the upper opening 21. That is, the mounting channel 2 has heat dissipation fins 24 at least in the part with the highest temperature. The arrangement of the heat dissipation fins 24 can increase the contact surface area with the gas, allowing the heat on the mounting channel 2 to be conducted to the gas more quickly, thereby improving the heat transfer efficiency and further enhancing the cooling effect of the gas in a high-speed flow state on the mounting channel 2.

[0033] In this embodiment, the heat dissipation fins 24 extend vertically, which reduces the coverage area of ​​the heat dissipation fins 24 on the cross-section of the inner fire gas casing 11 compared to extending horizontally. This avoids the heat dissipation fins 24 interfering with the flow state of the gas inside the inner fire gas casing 11. Furthermore, multiple heat dissipation fins 24 are arranged circumferentially at intervals on the outer wall of the mounting channel 2, so that the heat dissipation fins 24 are evenly distributed on the outer wall of the mounting channel 2, and the heat dissipation and cooling effect on the mounting channel 2 is uniform.

[0034] In this embodiment, a constricted tube structure 111 is formed on the upper part of the internal combustion gas casing 11, corresponding to the heat dissipation fins 24. The cross-sectional area of ​​the constricted tube structure 111 gradually decreases and then gradually increases from bottom to top, thereby increasing the gas flow velocity at the constricted tube structure 111. On the one hand, the constricted tube structure 111 is located close to the internal combustion hole 1a at the top of the internal combustion gas casing 11, and increasing the gas flow velocity obviously improves the combustion efficiency at the internal combustion hole 1a. On the other hand, since the gas flow velocity at the constricted tube structure 111 is increased, the heat exchange efficiency between the gas and the outer wall of the installation channel 2 can be improved, thereby further enhancing the cooling and heat dissipation effect on the installation channel 2.

[0035] In addition to the high temperature of the inner fire gas casing 11 interfering with the detection accuracy of the temperature sensor 3, the flame at the fire hole of the inner fire gas casing 11 also interferes with the detection accuracy of the temperature sensor 3.

[0036] In this embodiment, based on this, a raised portion 112 is formed on the top of the inner flame gas casing 11, which surrounds the temperature sensing probe 3 and gradually increases from the outside to the inside. The inner flame hole 1a is arranged on the raised portion 112, so that the flame ring formed at the inner flame hole 1a presents an outwardly radiating combustion state, thereby making the combustion direction of the flame at the inner flame hole 1a away from the temperature sensing probe 3, so as to avoid the flame interfering with the detection accuracy of the temperature sensing probe 3.

[0037] In this embodiment, the lower part of the mounting channel 2 has a limiting structure 23 formed by a protrusion from the inner wall. The limiting structure 23 allows the signal transmission line 31 to pass through and abuts against the bottom end of the temperature probe 3, thus limiting the lowest position of the temperature probe 3 within the mounting channel 2 to prevent the temperature probe 3 from falling out of the lower opening 22. The limiting structure 23 can be set as an annular flange, or it can be composed of multiple protrusions on the inner wall of the mounting channel 2. Alternatively, a large-diameter section and a small-diameter section can be set within the mounting channel 2, with the step formed at the junction of the two serving as the limiting structure 23. It only needs to satisfy the requirement of allowing the transmission line to pass through while preventing the temperature probe 3 from passing through.

[0038] In this embodiment, an elastic reset component 32 is provided in the installation channel 2. The elastic reset component 32 is specifically configured as a compression spring, which is sleeved outside the signal transmission line. The top of the elastic reset component 32 supports the bottom of the temperature sensor 3, and its bottom is supported on the limiting structure 23, so that the temperature sensor 3 can be adapted to different sizes and types of pots. When the pot is placed on the pot rack, the bottom of the pot abuts against the top of the temperature sensor 3 and presses down on the temperature sensor 3, so that the temperature sensor 3 slides downward in the installation channel 2. The elastic force provided by the elastic reset component 32 keeps the top of the temperature sensor 3 against the bottom of the pot, so that the temperature sensor 3 can accurately detect the temperature. After the pot is removed, under the action of the elastic force of the elastic reset component 32, the temperature sensor 3 slides upward and resets to the initial height.

[0039] The burner in this embodiment also includes an outer flame gas casing 12, which surrounds the inner flame gas casing 11 and has an outer flame hole 1b at its top. The inner flame hole 1a provides an inner flame ring formed during gas combustion, and the outer flame hole 1b provides an outer flame ring formed during gas combustion.

[0040] The burner in this embodiment also includes an inner fire gas ejector tube 13 and an outer fire gas ejector tube 14. The outer fire gas ejector tube 14 is connected to the lower part of the outer fire gas housing 12, and the inner fire gas ejector tube 13 passes through the outer fire gas housing 12 and is connected to the lower part of the inner fire gas housing 11.

[0041] Implementation Case 2:

[0042] A gas stove includes a burner and a gas valve, wherein the burner is as shown in Embodiment 1, and the gas valve is used to control the gas supplied to the burner.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A burner, characterized in that, include: The internal combustion gas casing (11) has an internal combustion hole (1a) at its top, and the gas flow direction inside it is vertically upward. The installation channel (2) is vertically arranged inside the inner fire gas housing (11) and its outer wall is in contact with the gas. The installation channel (2) forms an upper opening (21) at the top center and a lower opening (22) at the bottom center of the inner fire gas housing (11). A temperature sensor (3) is set inside the mounting channel (2) and extends partly from the upper opening (21) to detect the temperature of the bottom of the pot. Its bottom end is connected to a signal transmission line (31) and extends from the lower opening (22).

2. The burner according to claim 1, characterized in that, The mounting channel (2) has a plurality of heat dissipation fins (24) on its outer wall, at least in the portion near the upper opening (21).

3. The burner according to claim 2, characterized in that, The heat dissipation fins (24) extend vertically and are arranged circumferentially on the outer wall of the mounting channel (2).

4. The burner according to claim 2, characterized in that, A tube-shaped structure (111) is formed on the upper part of the internal combustion gas casing (11) and corresponding to the heat dissipation fins (24). The cross-sectional area of ​​the tube-shaped structure (111) gradually decreases from bottom to top and then gradually increases, which is used to increase the gas flow velocity at the tube-shaped structure (111).

5. The burner according to claim 1, characterized in that, The top of the internal combustion gas casing (11) is formed with a raised portion (112) that surrounds the temperature sensing probe (3) and gradually increases from the outside to the inside. The internal combustion hole (1a) is arranged on the raised portion (112) such that the combustion direction of the flame at the internal combustion hole (1a) is away from the temperature sensing probe (3).

6. The burner according to claim 1, characterized in that, The lower part of the installation channel (2) has a limiting structure (23) formed by the protrusion of the inner wall. The limiting structure (23) allows the signal transmission line (31) to pass through and can abut against the bottom end of the temperature probe (3) to prevent the temperature probe (3) from falling off from the lower opening (22).

7. The burner according to claim 6, characterized in that, An elastic reset member (32) is provided inside the installation channel (2) and is fitted outside the signal transmission line (31). The top of the elastic reset member (32) supports the bottom of the temperature sensing probe (3), and the bottom is supported on the limiting structure (23).

8. The burner according to any one of claims 1-7, characterized in that, It also includes an outer fire gas casing (12) which surrounds the inner fire gas casing (11) and has an outer fire hole (1b) at its top.

9. The burner according to claim 8, characterized in that, It also includes an inner fire gas ejector tube (13) and an outer fire gas ejector tube (14), the outer fire gas ejector tube (14) being connected to the lower part of the outer fire gas housing (12), and the inner fire gas ejector tube (13) passing through the outer fire gas housing (12) and being connected to the lower part of the inner fire gas housing (11).

10. A gas stove, characterized in that, The invention includes the burner according to any one of claims 1-9 and a gas valve, the gas valve being used to control the gas supplied to the burner.

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