Electric heating heat conduction furnace

Abstract

The utility model discloses an electric heating heat conduction furnace which comprises a heat conduction medium, a furnace body, an electric heating device and a control panel, a base is arranged at the bottom of the furnace body, a panel is arranged at the top of the furnace body, a sealing plate and a heat insulation plate are arranged in the furnace body, and the furnace body is divided into an oil storage chamber, a heat dissipation chamber and a heat insulation chamber through the sealing plate and the heat insulation plate. The oil storage chamber is filled with the heat-conducting medium, and the electric heating device is arranged in the oil storage chamber and electrically connected with the control panel arranged on the side face of the base. A heat dissipation device is further arranged in the oil storage chamber; a sealing lantern ring is arranged on the outer side of the furnace body in the circumferential direction of the furnace body, and a gas storage chamber is formed between the sealing lantern ring and the heat insulation chamber. And a connecting pipe communicated with the oil storage chamber and the gas storage chamber is arranged on the side surface of the furnace body. According to the heat conduction furnace, a double-circulation heating mode is adopted, the energy utilization rate and the heat transfer efficiency are improved, and the heat conduction furnace is simple in structure, convenient to operate and use and suitable for application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to the heating equipment technical field, and specifically is an electric heating heat conduction stove. BACKGROUND

[0002] The commonly used heating stove in the market at present has coal stove for burning coal, wood and coal burning stove for burning wood and coal together, and biomass burning stove using biomass as raw material. The above-mentioned stoves are used as heating equipment, and the main disadvantage is that they need to be equipped with burning raw materials. With the development of the times, the stoves using traditional fuel combustion as heat source are limited by environmental protection due to the emission of pollutants. At the same time, for users living in high floors, in order not to need to be equipped with burning raw materials, gas stoves or electric heating stoves are generally used. For gas stoves, not only gas pipelines need to be connected, but also there are certain safety hazards. In order to be safe and convenient to use, most users will choose electric heating stoves. The electric heating stoves used in the market at present generally use electric heating pipes for heating. Although the temperature around the stove body is very high, the temperature of the place far away from the stove body is relatively low, which cannot achieve the purpose of heating.

[0003] The electric heating heat conduction oil stove is a new type of stove with safety and high energy saving. It uses electricity as energy, converts electric energy into heat energy through electric heating elements, and uses heat conduction oil as heat carrier to transfer heat to the outside of the stove body. The existing electric heating heat conduction oil stove needs to be equipped with a high temperature oil pump in the actual application process. The high temperature oil pump is used to forcibly circulate the heat conduction oil in the stove body, so that it is heated repeatedly. If the high temperature oil pump is not equipped, the heating effect is not good, which not only cannot meet the heating requirement, but also increases the cost during use.

[0004] Through retrieval, the patent document with application publication number CN110030733A discloses an electric heating heat conduction oil stove, the patent document with authorization announcement number CN218955191U discloses an energy-saving electric heating heat conduction oil stove, and the patent document with authorization announcement number CN216744934U discloses an energy-saving electric heating heat conduction oil stove. From the contents disclosed in the three patent documents retrieved, a heat conduction oil stove meeting the use requirement is provided from different angles. For the heat conduction stove for heating, in order to improve the heat effect, make the generated heat be fully utilized, at the same time, in order to reduce the use cost and increase the practical performance, a heat conduction stove with simple structure and convenient to use is provided to meet the use requirement of more users. UTILITY MODEL CONTENTS

[0005] The utility model wants to solve the technical problem in the prior art, provide a simple structure, convenient operation's heat conduction stove, utilize this heat conduction stove, not only can improve the heat effect, can also make full use of the heat energy produced, make the ambient temperature of the four around stove body rise, thereby reach the purpose of heating, so as to satisfy more user's use demand, specifically speaking, it is an electric heating heat conduction stove.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme: an electric heating heat conduction stove, including heat conducting medium, stove body, electric heating device and control panel, the bottom of stove body is provided with base, and the top of stove body is provided with panel, the inside of stove body is sequentially provided with sealing plate and heat insulation plate from bottom to top, stove body is divided into three chambers through sealing plate and heat insulation plate, three chambers are oil storage chamber, heat dissipation chamber and heat insulation chamber from bottom to top, heat conducting medium is filled in oil storage chamber, electric heating device is arranged in oil storage chamber and is electrically connected with control panel arranged on the side of base, heat dissipation device is further arranged in oil storage chamber, the bottom of heat dissipation device is communicated with base, and the top is communicated with heat dissipation chamber, a plurality of heat dissipation holes in ring shape are arranged on the side of stove body, and the heat dissipation hole is communicated with heat dissipation chamber, sealing sleeve ring is arranged on the outside of stove body along the circumference, and the air storage chamber is formed between the inside of sealing sleeve ring and the outside of heat insulation chamber, and the connecting pipe that communicates with oil storage chamber and air storage chamber is arranged on the side of stove body.

[0007] Further, the electric heating heat conduction stove has the positioning cylinder coaxially arranged with the stove body in the oil storage chamber, the top of the positioning cylinder is communicated with the oil storage chamber, and the electric heating device is arranged in the positioning cylinder; the heat conducting medium filled in the oil storage chamber is any one of mineral heat conducting oil, water or molten salt, the height of the heat conducting medium is greater than the height of the positioning cylinder and is not greater than two-thirds of the height of the oil storage chamber.

[0008] Further, the electric heating heat conduction stove has the flow guide baffle in the oil storage chamber, the flow guide baffle is located in the oil storage chamber close to the base, the positioning cylinder is arranged on the flow guide baffle, the flow guide baffle has the oil guide hole corresponding to the positioning cylinder, the electric heating device passes through the oil guide hole, extends upward into the positioning cylinder, and the flow guide baffle has the mounting hole corresponding to the heat dissipation device, the heat dissipation device passes through the mounting hole and extends downward to be communicated with the base, and the heat dissipation device and the flow guide baffle are fixed as an integral structure by welding; the outer diameter of the flow guide baffle is less than the inner diameter of the stove body, and the oil guide gap is formed between the flow guide baffle and the inner wall of the oil storage chamber.

[0009] Further, the electric heating conductive furnace has the advantages that the electric heating device comprises an electric heating pipe and a protective cover, the electric heating pipe is arranged in the protective cover, the protective cover passes through the oil guide hole, extends upwards into the positioning cylinder, and a heating chamber is formed between the protective cover and the positioning cylinder; the bottom of the electric heating pipe is fixed in the base, and the electric heating pipe is electrically connected with the control panel arranged on the side surface of the base.

[0010] Further, the electric heating conductive furnace has the advantages that the electric heating pipe at least has two groups, and the multiple groups of electric heating pipes are arranged in the protective cover in a parallel mode.

[0011] Further, the electric heating conductive furnace has the advantages that the heat dissipation device is composed of multiple heat dissipation pipes, the multiple heat dissipation pipes are arranged in the oil storage chamber outside the positioning cylinder in a ring shape, multiple air inlet holes corresponding to the heat dissipation pipes are arranged in the base, the bottom of the heat dissipation pipe is welded with the base to form an integrated sealing structure, and the heat dissipation pipe is communicated with the base through the air inlet hole, the top of the heat dissipation pipe sequentially passes through the mounting holes in the flow guide partition plate and the sealing plate, and then extends upwards into the heat dissipation chamber and is communicated with the heat dissipation chamber.

[0012] Further, the electric heating conductive furnace has the advantages that the base comprises a pedal and a supporting ring, the pedal has the same outer shape structure as the outer shape structure of the furnace body, and the outer diameter of the pedal is greater than the outer diameter of the furnace body, the furnace body is welded on the pedal, the supporting ring is welded on the bottom of the pedal, multiple ventilation holes communicated with the inner cavity of the supporting ring are arranged on the side surface of the supporting ring in the circumferential direction, the air inlet holes are arranged in the pedal, the multiple air inlet holes are arranged in the pedal in a ring shape, the heat dissipation pipes are inserted into the air inlet holes one by one and are fixed with the pedal in an integrated sealing structure by welding.

[0013] Further, the electric heating conductive furnace has the advantages that the base comprises a pedal and a supporting ring, the pedal has the same outer shape structure as the outer shape structure of the furnace body, and the outer diameter of the pedal is greater than the outer diameter of the furnace body, the furnace body is welded on the pedal, the supporting ring is welded on the bottom of the pedal, multiple ventilation holes communicated with the inner cavity of the supporting ring are arranged on the side surface of the supporting ring in the circumferential direction, the air inlet holes are arranged in the pedal, the multiple air inlet holes are arranged in the pedal in a ring shape, the heat dissipation pipes are inserted into the air inlet holes one by one and are fixed with the pedal in an integrated sealing structure by welding.

[0014] Further, the electric heating conductive furnace has the advantages that the base comprises a pedal and a supporting ring, the pedal has the same outer shape structure as the outer shape structure of the furnace body, and the outer diameter of the pedal is greater than the outer diameter of the furnace body, the furnace body is welded on the pedal, the supporting ring is welded on the bottom of the pedal, multiple ventilation holes communicated with the inner cavity of the supporting ring are arranged on the side surface of the supporting ring in the circumferential direction, the air inlet holes are arranged in the pedal, the multiple air inlet holes are arranged in the pedal in a ring shape, the heat dissipation pipes are inserted into the air inlet holes one by one and are fixed with the pedal in an integrated sealing structure by welding.

[0015] Further, the electric heating heat conduction furnace has the exhaust valve communicated with the gas storage chamber on the sealing sleeve ring outside the furnace body; the temperature sensor for detecting the temperature of the heat conduction medium in the oil storage chamber and the liquid level sensor for detecting the liquid level of the heat conduction medium 1 in the oil storage chamber are arranged on the side of the furnace body, the temperature sensor is arranged in the upper part of the furnace body, the liquid level sensor is arranged in the lower part of the furnace body, and the temperature sensor and the liquid level sensor are electrically connected with the control panel; the control panel is the PLC intelligent control panel with the power connector and the display screen, and the control button is arranged in the control panel.

[0016] The electric heating heat conduction furnace has the sealing plate and the heat insulation plate arranged in the furnace body, the furnace body is divided into the oil storage chamber, the heat dissipation chamber and the heat insulation chamber through the sealing plate and the heat insulation plate, the heat conduction medium is filled in the oil storage chamber, the electric heating device is arranged in the oil storage chamber, the heat conduction medium filled in the oil storage chamber is heated by the electric heating device, the heated heat conduction medium transmits heat to the side wall of the oil storage chamber, so that the furnace body is heated, and the heating purpose is achieved; meanwhile, the heat dissipation device is further arranged in the oil storage chamber, the bottom of the heat dissipation device is communicated with the base, and the top of the heat dissipation device extends into the heat dissipation chamber, cold air enters from the bottom of the heat dissipation device, is heated by the heat conduction medium in the oil storage chamber, and is finally discharged outward from the heat dissipation hole communicated with the heat dissipation chamber, so that the air around the furnace body is cyclically heated, and the energy utilization rate is greatly improved; in addition, the flow guide partition plate is further arranged in the oil storage chamber, the flow guide partition plate divides the oil storage chamber into two cavities communicated with each other, under the action of the electric heating device, the heat conduction medium around the electric heating device is first heated, the heated heat conduction medium flows upward, and the heat conduction medium at the bottom of the furnace body that is not heated flows upward, under the action of the flow guide partition plate, so that the heat conduction medium in the oil storage chamber forms a circulation system and is cyclically heated, and the heating efficiency is greatly improved, and meanwhile, the phenomenon that the heat conduction medium in the oil storage chamber is unevenly heated and the oil temperature is too high is avoided.

[0017] Therefore, the heat conduction furnace has the heat conduction medium as the heat exchange medium, adopts electric energy as the heating heat source of the heat conduction medium, and is provided with the heat dissipation device and the flow guide partition plate in the oil storage chamber, so that the air around the furnace body can be cyclically heated, the heat conduction medium in the furnace body can be cyclically heated, the double-circulation heating mode is adopted, the generated heat energy is fully utilized, the energy utilization rate is improved, the heat transfer efficiency of heat is increased, the structure is simple, the operation and use are convenient, the safety is practical, the purpose of energy saving and emission reduction is achieved, the use demand of more users can be met, and the heat conduction furnace is suitable for popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in detail in combination with the drawings.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model Figure 2 ;

[0021] Figure 3 This is a schematic cross-sectional view of Example 1 of the present utility model;

[0022] Figure 4 This is a schematic diagram of the partial three-dimensional structure of Example 1 of the utility model after the panel is removed;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of Example 2 of the present utility model;

[0024] Figure 6 This is a schematic diagram of the partial cross-sectional structure of Example 3 of the present utility model.

[0025] As shown in the figure: 1-heat conducting medium, 2-furnace body, 21-heat dissipation hole, 22-positioning cylinder, 23-guide baffle, 3-electric heating device, 31-electric heating pipe, 32-protective cover, 4-control panel, 5-base, 51-pedal, 52-support ring, 53-ventilation hole, 6-panel, 7-sealing plate, 8-insulation plate, 9-heat dissipation device, 91-heat dissipation pipe, 92-air inlet, 10-sealing collar, 11-connecting pipe, 12-electric heating furnace, 13-storage ring, 14-exhaust valve. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology. They are not used to limit the conditions for the implementation of this utility model and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose of the utility model. At the same time, the terms such as "upper", "lower", "left", "right", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of this utility model without substantially changing the technical content.

[0028] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "connect", "have" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium.

[0029] It should be noted that the term "includes" or any other variant means to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Embodiment 1

[0030] As Figures 1 to 4 The utility model provides a kind of electric heating heat conduction stove, including heat conducting medium 1, furnace body 2, electric heating device 3 and control panel 4, bottom seat 5 is provided in the bottom of furnace body 2, and panel 6 is provided in the top of furnace body 2, sealing plate 7 and heat insulation plate 8 are sequentially provided in furnace body 2 from below to above, furnace body 2 is divided into three chambers by sealing plate 7 and heat insulation plate 8, three chambers are oil storage chamber, heat dissipation chamber and heat insulation chamber from below to above respectively, heat conducting medium 1 is filled in oil storage chamber, electric heating device 3 is arranged in oil storage chamber, and control panel 4 is electrically connected with the side of bottom seat 5;Heat dissipation device 9 is further provided in the oil storage chamber, the bottom of heat dissipation device 9 is communicated with bottom seat 5, and its top is communicated with heat dissipation chamber, a plurality of heat dissipation holes 21 are arranged in the side of furnace body 2 in ring shape, and the heat dissipation hole 21 is communicated with heat dissipation chamber;Sealing sleeve ring 10 is provided on the outside of furnace body 2 along its circumference, and gas storage chamber is formed between the inside of sealing sleeve ring 10 and the outside of heat insulation chamber;Connecting pipe 11 is provided in the side of furnace body 2 and communicated with oil storage chamber and gas storage chamber.

[0031] Further, the heat conduction furnace has a positioning cylinder 22 coaxially arranged with the furnace body 2 in the oil storage chamber, the top of the positioning cylinder 22 communicates with the oil storage chamber, and the electric heating device 3 is arranged in the positioning cylinder 22; the heat conduction medium 1 filled in the oil storage chamber is mineral heat conduction oil, the height of the heat conduction medium 1 is greater than the height of the positioning cylinder 22 and is not greater than two-thirds of the height of the oil storage chamber; at the same time, a flow guide baffle 23 is arranged in the oil storage chamber, the flow guide baffle 23 is arranged in the oil storage chamber close to the base 5, the positioning cylinder 22 is arranged on the flow guide baffle 23, the flow guide baffle 23 is provided with an oil guide hole corresponding to the positioning cylinder 22, the electric heating device 3 passes through the oil guide hole and extends upward into the positioning cylinder 22, the flow guide baffle 23 is also provided with a mounting hole corresponding to the heat dissipation device 9, the heat dissipation device 9 passes through the mounting hole and extends downward to communicate with the base 5, and the heat dissipation device 9 and the flow guide baffle 23 are fixed as an integral structure by welding; the outer diameter of the flow guide baffle 23 is smaller than the inner diameter of the furnace body 2, and an oil guide gap is formed between the flow guide baffle 23 and the inner wall of the oil storage chamber. By using the oil guide gap, the heat conduction medium 1 above the flow guide baffle 23 can return to below the flow guide baffle 23 through the oil guide gap, thereby forming a circulation system, so that the heat conduction medium 1 can be heated more uniformly, thereby effectively utilizing the generated heat.

[0032] Further, the heat conduction furnace has an electric heating device 3 including an electric heating pipe 31 and a protective cover 32, the electric heating pipe 31 is arranged in the protective cover 32, the protective cover 32 passes through the oil guide hole and extends upward into the positioning cylinder 22, and a heating chamber is formed between the protective cover 32 and the positioning cylinder 22; the bottom of the electric heating pipe 31 is fixed in the base 5, and the electric heating pipe 31 is electrically connected with the control panel 4 arranged on the side of the base 5. The electric heating pipe 31 is provided with at least two groups, and a plurality of electric heating pipes 31 are arranged in the protective cover 32 in parallel. In actual production process, three groups of electric heating pipes 31 are generally arranged, so that three groups of electric heating pipes 31 can be started at the same time when starting to use, and then two groups or one group of electric heating pipes 31 can be used for heating when the temperature of the furnace body 2 rises, thereby reducing the operation cost.

[0033] Further, the heat conduction furnace described in the embodiment is provided with the heat dissipation device 9 which is composed of a plurality of heat dissipation pipes 91 arranged in the oil storage chamber outside the positioning cylinder 22 in a ring shape. A plurality of air inlet holes 92 corresponding to the heat dissipation pipes 91 are arranged in the base 5. The bottom of the heat dissipation pipe 91 is welded to the base 5 in an integrated sealing structure and is communicated with the base 5 through the air inlet hole 92. The top of the heat dissipation pipe 91 passes through the mounting hole in the flow guide baffle 23 and the sealing plate 7 in sequence and extends upward into the heat dissipation chamber and is communicated with the heat dissipation chamber. The cold air outside the furnace body 2 enters the heat dissipation pipe 91 through the base 5, and the heated air is finally discharged from the heat dissipation chamber, thereby forming an air circulation heating channel, so that the air around the furnace body 2 is also heated. In addition, the plurality of heat dissipation pipes 91 arranged in the oil storage chamber can also support the positioning cylinder 22 and the flow guide baffle 23.

[0034] Further, the heat conduction furnace described in the embodiment is provided with the base 5 which includes a step plate 51 and a supporting ring 52. The shape of the step plate 51 is the same as that of the furnace body 2, and the outer diameter of the step plate 51 is greater than that of the furnace body 2. The furnace body 2 is welded to the step plate 51, and the supporting ring 52 is welded to the bottom of the step plate 51. A plurality of ventilation holes 53 are arranged on the side of the supporting ring 52 and are communicated with the inner cavity of the supporting ring 52. The air inlet hole 92 is arranged in the step plate 51, and a plurality of air inlet holes 92 are arranged in the step plate 51 in a ring shape. The heat dissipation pipe 91 is inserted into the air inlet hole 92 in a one-to-one correspondence and is fixed to the step plate 51 in an integrated sealing structure by welding.

[0035] Further, the heat conduction furnace described in the embodiment is provided with two connecting pipes 11 arranged outside the furnace body 2 in a symmetrical state. One end of the connecting pipe 11 is connected to the furnace body 2 near the heat dissipation chamber, and the other end is connected to the bottom of the sealing sleeve ring 10. By arranging two connecting pipes 11 communicated with the sealing sleeve ring 10, a small amount of gas generated after the heat conduction medium 1 is heated can be collected in the gas storage chamber. When not heated, a small amount of oil gas in the gas is converted into oil liquid after cooling and returns to the oil storage chamber, realizing recycling.

[0036] In the actual preparation process of the heat conduction furnace described in the embodiment, the structure of the furnace base 5 and the panel 3 can be set to a square or circular structure according to different user requirements. The furnace body 2 can be set to a cylindrical structure or a square structure, or the structure of the furnace base 5, the furnace body 2 and the panel 6 can be set to other shapes according to user requirements, as long as the strength requirement is met. Embodiment 2

[0037] As Figure 5As shown, this embodiment is based on the embodiment 1. In order to increase the practical performance of the heat conduction furnace of the utility model, in addition to achieving the purpose of heating, it can also be used as a heating device for cooking, achieving the purpose of multiple uses. The heat conduction furnace described in this embodiment also includes an electric heating furnace 12. A support plate is also provided in the heat insulation chamber of the furnace body 2, which is not shown in the figure. The electric heating furnace 12 is set in the support plate in the heat insulation chamber, and a panel hole corresponding to the electric heating furnace 12 is opened in the panel 6. The electric heating furnace 12 extends upward to the surface of the panel 6 through the panel hole; the electric heating furnace 12 is electrically connected to the control panel 4 provided on the side of the base 5. Through the configuration of the electric heating furnace 12, in addition to achieving the conventional heating purpose, especially in winter, it can also be used as a heating device for cooking, which is suitable for families to eat hot pot at the dining table, and is also suitable for the self-service operation of one table and one furnace in a restaurant, so it has extremely high practicality and social benefits.

[0038] At the same time, in order to facilitate the placement of objects to be dried around the furnace body 2, a ring 13 is provided at the bottom of the panel 6 along its circumference. The ring 13 allows objects to be dried to be hung in the ring 13, thereby further improving its practical performance. Example 3

[0039] like Figure 6 As shown, this embodiment is based on Example 2. In order to improve the intelligent performance of the heat-conducting furnace of the present invention and facilitate monitoring and operation, the heat-conducting furnace of this embodiment is used. An exhaust valve 14 communicating with the air storage chamber is provided on the sealing ring 10 on the outside of the furnace body 2; a temperature sensor for detecting the temperature of the heat-conducting medium 1 in the oil storage chamber and a liquid level sensor for detecting the liquid level of the heat-conducting medium 1 in the oil storage chamber are provided on the side of the furnace body 2. The temperature sensor is arranged in the upper middle part of the furnace body 2, and the liquid level sensor is arranged in the lower middle part of the furnace body 2. The temperature sensor and the liquid level sensor are electrically connected to the control panel 4 respectively; the control panel 4 adopts a PLC intelligent control panel with a power connector and a display screen, and control buttons are provided in the control panel 4.

[0040] Since both the temperature sensor and the liquid level sensor are commonly used monitoring devices in the prior art, their application to the heat-conducting furnace described in this embodiment is intended to facilitate monitoring of the temperature and liquid level of the heated heat-conducting medium 1 in the furnace body 2. No modification is required to the structure of the temperature sensor and the liquid level sensor. Therefore, their specific models and structures are not described in detail. As long as they match the control panel 4, they can be purchased directly on the market and installed to meet the requirements of use.

[0041] At the same time, in the specific application process, a voice module and a network module can be configured in the control panel 4 according to user needs to realize voice control and remote control, and the specific implementation method can refer to the control method commonly used in the prior art. In addition, the exhaust valve 14 can be set as a manual control valve or as an automatic electromagnetic control valve. If an automatic electromagnetic control valve is used, it can be electrically connected to the control panel 4. Through the configuration of the exhaust valve 14, the gas generated by the heating of the heat-conducting medium 1 can be first collected in the gas storage chamber, and then the exhaust valve 14 can be used to discharge the collected gas to avoid the problem of explosion caused by excessive gas pressure, thereby improving its safety performance. At the same time, the configuration of the exhaust valve 14 can also facilitate subsequent maintenance. When the amount of heat-conducting medium 1 filled in the oil storage chamber is small, the heat-conducting medium 1 can be first injected into the gas storage chamber through the exhaust valve 14, and then the injected heat-conducting medium 1 can be injected into the oil storage chamber through the connecting pipe 11, which is convenient for subsequent oil filling and maintenance.

[0042] The specific working principle of the heat conduction furnace of the present invention is as follows: first, an external power supply is connected to the electric heating tube 31, and then the electric heating tube 31 is started through the control panel 4. The electric heating tube 31 set in the protective cover 32 first heats the heat conduction medium 1 located in the heating chamber of the positioning cylinder 22. After being heated, the heat conduction medium 1 flows upward and enters the oil storage chamber from the top of the positioning cylinder 22, while the cold heat conduction medium 1 enters the heating chamber of the positioning cylinder 22 from the bottom of the positioning cylinder 22 and continues to be heated. Since there is a flow baffle 23 in the oil storage chamber, the heat conduction medium 1 flows upward and enters the oil storage chamber from the top of the positioning cylinder 22. The outer diameter of the guide baffle 23 is smaller than the inner diameter of the furnace body 2, and an oil conducting gap is formed between the guide baffle 23 and the inner wall of the oil storage chamber. In this way, the oil conducting gap can be utilized to allow the heated heat-conducting medium 1 located above the guide baffle 23 to return to the bottom of the guide baffle 23 through the oil conducting gap, thereby forming a circulation system, avoiding the problem of the heat-conducting medium 1 located on the inner wall of the oil storage chamber and near its bottom not being heated. In this way, the heat-conducting medium 1 can be heated more evenly, so that the heat generated by it can be effectively utilized. In addition, since a plurality of heat dissipation pipes 91 are provided in the oil storage chamber, the bottom of the heat dissipation pipe 91 is communicated with the base 5, and the top thereof extends into the heat dissipation chamber. Firstly, by utilizing the plurality of heat dissipation pipes 91 provided in the oil storage chamber, the cold air outside the furnace body 2 can enter the base 5 through the ventilation holes 53 in the base 5, and then enter the heat dissipation pipe 91. The heated air is finally discharged from the inside and outside of the heat dissipation chamber, thereby forming an air circulation heating channel, so that the air around the furnace body 2 can also be heated; secondly, by utilizing the plurality of heat dissipation pipes 91 provided in the oil storage chamber, the oil storage space of the oil storage chamber can be reduced by increasing the heat dissipation pipes 91, thereby reducing the amount of heat transfer medium 1 used, which can reduce the cost of use.

[0043] The heat conduction furnace described in the present invention, wherein the electric heating tube 31, control panel 4, and electric heating furnace 12 are all common equipment in the prior art, can be directly purchased on the existing market without any structural modification. Their application in the present invention is intended to facilitate control, and therefore there are no specific requirements for their specific models or specifications; as long as they match the requirements, they can be used. In addition, since the heat conduction medium 1 mainly includes four categories: water (steam), oil, molten salt, and liquid metal. For temperatures in the range of 0-100°C, water is an ideal heat carrier, while for temperatures in the range of 400-550°C, molten salt is usually used as a heat carrier. The most commonly used one is a ternary eutectic mixture: 53% potassium nitrate, 40% sodium nitrite, and 7% sodium nitrate. For temperatures in the range of 500-800°C, alkali metal sodium and potassium or an alloy of these two metals are used as heat carriers; and in the range of 0-400°C, organic heat carriers are ideal heat carriers, among which mineral organic heat carriers and synthetic organic heat carriers belong to organic heat carriers, and water and water vapor, liquid metal, molten salt, etc. belong to inorganic heat carriers. As a heating furnace body, for temperatures in the range of 0-400°C, organic heat carriers are ideal heat carriers. Therefore, for the convenience of use, the cost of use, and the convenience of later maintenance, the heat transfer medium 1 can be mineral heat transfer oil. The maximum temperature of mineral heat transfer oil can reach about 300°C. It is fully capable of being used in heating equipment.

[0044] It can be seen that, with the heat-conducting furnace described in the present invention, since a sealing plate 7 and a heat-insulating plate 8 are provided in the furnace body 2, the furnace body 2 is divided into an oil storage chamber, a heat dissipation chamber and a heat-insulating chamber by the sealing plate 7 and the heat-insulating plate 8. The heat-conducting medium 1 is filled in the oil storage chamber, and the electric heating device 3 is provided in the oil storage chamber. First, the electric heating device 3 is used to heat the heat-conducting medium 1 filled in the oil storage chamber, and the heated heat-conducting medium 1 transfers heat to the side wall surface of the oil storage chamber, thereby heating the furnace body 2 to achieve the purpose of heating; second, a heat dissipation device 9 is further provided in the oil storage chamber, and the bottom of the heat dissipation device 9 is communicated with the base 5, and the top thereof extends into the heat dissipation chamber. After the cold air enters from the bottom of the heat dissipation device 9, it is heated by the heat-conducting medium 1 in the oil storage chamber, and finally passes through the heat dissipation chamber. The heat is discharged outwardly through the heat dissipation holes 21, so that the air around the furnace body 2 is circulated and heated, which can greatly improve the energy utilization rate; thirdly, since a guide baffle 23 is also provided in the oil storage chamber, the guide baffle 23 divides the oil storage chamber into two upper and lower communicating cavities. Under the action of the electric heating device 3, the heat-conducting medium 1 located around the electric heating device 3 can be heated first, and the heated heat-conducting medium 1 will flow upward, while the heat-conducting medium 1 located at the bottom of the furnace body 2 that has not been heated will flow upward. Under the action of the guide baffle 23, the heat-conducting medium 1 in the oil storage chamber forms a circulation system and is circulated and heated, which can greatly improve the heating efficiency. At the same time, it also avoids the phenomenon of excessive oil temperature caused by uneven heating of the heat-conducting medium 1 in the oil storage chamber. Fourth, since it is also equipped with an electric heating furnace 12, the electric heating furnace 12 can not only achieve the conventional heating purpose, but also be used as a heating device for cooking, especially in winter. It is suitable for families to eat hot pot at the dining table, and is also suitable for the self-service operation of one table and one furnace in a restaurant, so it has extremely high practicality and social benefits.

[0045] In summary, the heat-conducting furnace described in the present invention uses the heat-conducting medium 1 as the heat exchange medium, and uses electric energy as the heating heat source of the heat-conducting medium 1. Through the heat dissipation device 9 and the guide baffle 23 arranged in the oil storage chamber, not only the air around the furnace body 2 can be circulated and heated, but also the heat-conducting medium 1 in the furnace body 2 can be circulated and heated. A double-circulation heating method is adopted to fully utilize the generated heat energy, which not only improves the energy utilization rate, but also increases the heat transfer efficiency. It has a simple structure, is easy to operate and use, is safe and practical, not only achieves the purpose of energy saving and emission reduction, but also can meet the use needs of more users, and is suitable for promotion and application.

[0046] Other aspects of the present invention that are not described in detail are all conventional technologies known to those skilled in the art.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electrically heated heat-conducting furnace, comprising a heat-conducting medium (1), a furnace body (2), an electric heating device (3) and a control panel (4), characterized in that: A base (5) is provided at the bottom of the furnace body (2), and a panel (6) is provided at the top of the furnace body (2). A sealing plate (7) and a heat insulation plate (8) are provided in sequence from bottom to top in the furnace body (2). The furnace body (2) is divided into three chambers by the sealing plate (7) and the heat insulation plate (8). The three chambers are respectively an oil storage chamber, a heat dissipation chamber and a heat insulation chamber from bottom to top. The heat conducting medium (1) is filled in the oil storage chamber. The electric heating device (3) is provided in the oil storage chamber and is electrically connected to a control panel (4) provided on the side of the base (5). A heat dissipation device (9) is also provided in the oil storage chamber, the bottom of the heat dissipation device (9) is communicated with the base (5), and the top thereof is communicated with the heat dissipation chamber, a plurality of heat dissipation holes (21) arranged in an annular shape are provided on the side of the furnace body (2), and the heat dissipation holes (21) are communicated with the heat dissipation chamber; a sealing ring (10) is provided on the outside of the furnace body (2) along its circumference, and an air storage chamber is formed between the inner side of the sealing ring (10) and the outer side of the heat insulation chamber; a connecting pipe (11) is provided on the side of the furnace body (2) and is communicated with the oil storage chamber and the air storage chamber.

2. The electrically heated heat conduction furnace according to claim 1, characterized in that: A positioning cylinder (22) coaxially arranged with the furnace body (2) is provided in the oil storage chamber, the top of the positioning cylinder (22) is communicated with the oil storage chamber, and the electric heating device (3) is provided in the positioning cylinder (22); and the heat transfer medium (1) filled in the oil storage chamber is any one of mineral heat transfer oil, water or molten salt, and the height of the heat transfer medium (1) is greater than the height of the positioning cylinder (22) and not greater than two-thirds of the height of the oil storage chamber.

3. The electrically heated heat conduction furnace according to claim 2, characterized in that: The oil storage chamber is further provided with a flow guide baffle (23), the flow guide baffle (23) is located in the oil storage chamber on the side close to the base (5), the positioning cylinder (22) is arranged on the flow guide baffle (23), an oil guide hole corresponding to the positioning cylinder (22) is provided in the flow guide baffle (23), the electric heating device (3) passes through the oil guide hole and extends upward into the positioning cylinder (22), and a mounting hole corresponding to the heat dissipation device (9) is also provided in the flow guide baffle (23), the heat dissipation device (9) passes through the mounting hole and extends downward to communicate with the base (5), and the heat dissipation device (9) and the flow guide baffle (23) are fixed to form an integral structure by welding; the outer diameter of the flow guide baffle (23) is smaller than the inner diameter of the furnace body (2), and an oil guide gap is formed between the flow guide baffle (23) and the inner wall surface of the oil storage chamber.

4. The electrically heated heat conduction furnace according to claim 3, characterized in that: The electric heating device (3) comprises an electric heating tube (31) and a protective cover (32), wherein the electric heating tube (31) is arranged in the protective cover (32), and the protective cover (32) passes through the oil guide hole and extends upward into the positioning cylinder (22), and a heating chamber is formed between the protective cover (32) and the positioning cylinder (22); the bottom of the electric heating tube (31) is fixed in the base (5), and the electric heating tube (31) is electrically connected to a control panel (4) arranged on the side of the base (5).

5. The electrically heated heat-conducting furnace according to claim 4, characterized in that: At least two groups of the electric heating tubes (31) are provided, and the multiple groups of electric heating tubes (31) are arranged in parallel inside the protective cover (32).

6. The electrically heated heat conduction furnace according to claim 3, characterized in that: The heat dissipation device (9) is composed of a plurality of heat dissipation tubes (91), which are evenly arranged in an annular shape in the oil storage chamber outside the positioning cylinder (22). A plurality of air inlet holes (92) corresponding to the heat dissipation tubes (91) are provided in the base (5). The bottom of the heat dissipation tube (91) is welded to the base (5) to form an integrated sealing structure, and is communicated with the base (5) through the air inlet holes (92). The top of the heat dissipation tube (91) passes through the mounting hole in the guide baffle (23) and the sealing plate (7) in sequence, and then extends upward into the heat dissipation chamber and communicates with the heat dissipation chamber.

7. The electrically heated heat conduction furnace according to claim 6, characterized in that: The base (5) includes a pedal (51) and a support ring (52). The outer structure of the pedal (51) is the same as that of the furnace body (2), and its outer diameter is larger than the outer diameter of the furnace body (2). The furnace body (2) is welded to the pedal (51), and the support ring (52) is welded to the bottom of the pedal (51). A plurality of ventilation holes (53) communicating with the inner cavity of the support ring (52) are provided on the side surface of the support ring (52) along its circumference; the air inlet hole (92) is provided in the pedal (51), and the plurality of air inlet holes (92) are arranged in a ring shape in the pedal (51). The heat dissipation pipes (91) are inserted into the air inlet holes (92) one by one and fixed to the pedal (51) by welding to form an integrated sealed structure.

8. The electrically heated heat conduction furnace according to claim 1, characterized in that: Two connecting pipes (11) are provided, and the two connecting pipes (11) are symmetrically arranged outside the furnace body (2). One end of the connecting pipe (11) is connected to the furnace body (2) near the heat dissipation chamber, and the other end is connected to the bottom of the sealing ring (10).

9. The electrically heated heat conduction furnace according to any one of claims 1 to 8, characterized in that: The electric heating furnace (12) is also included. A support plate is provided in the heat-insulating chamber in the furnace body (2). The electric heating furnace (12) is arranged in the support plate in the heat-insulating chamber. A panel hole corresponding to the electric heating furnace (12) is opened in the panel (6). The electric heating furnace (12) extends upward to the surface of the panel (6) through the panel hole. The electric heating furnace (12) is electrically connected to a control panel (4) provided on the side of the base (5). A storage ring (13) arranged in an annular manner is also provided at the bottom of the panel (6) along its circumference.

10. The electrically heated heat conduction furnace according to claim 9, characterized in that: An exhaust valve (14) communicating with the gas storage chamber is provided on the sealing collar (10) on the outside of the furnace body (2); and a temperature sensor for detecting the temperature of the heat-conducting medium (1) in the oil storage chamber and a liquid level sensor for detecting the liquid level of the heat-conducting medium (1) in the oil storage chamber are provided on the side of the furnace body (2). The temperature sensor is provided in the upper middle part of the furnace body (2), while the liquid level sensor is provided in the lower middle part of the furnace body (2). The temperature sensor and the liquid level sensor are electrically connected to a control panel (4) respectively. The control panel (4) adopts a PLC intelligent control panel with a power supply connector and a display screen, and control buttons are provided in the control panel (4).

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