Electric heat generating device
By setting a spirally wound solenoid coil and insulation layer on the outer circumference of the ferromagnetic barrel, combined with an auxiliary heating rod, the problem of uneven heat receiving of the medium caused by concentrated heating of the traditional resistance heating rod is solved, and a more uniform and efficient heating effect is achieved.
Patent Information
- Application Number
- CN202421369461.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The concentrated heating of traditional resistive heating rods causes uneven heating of the medium, reducing the heating effect.
A spiral wound electromagnetic coil is arranged on the outer peripheral side of the ferromagnetic barrel, combining the insulation layer and auxiliary heating rod to ensure uniform heat distribution.
The heating area of the medium is improved, the uneven heat is avoided, the heating effect is enhanced, and the heat loss is effectively prevented through the insulation layer.
Smart Images
Figure CN222776341U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating devices, in particular to an electric heat generating device. Background Art
[0002] In industrial processing, it is often necessary to heat the air to keep the workshop dry, effectively increase the air temperature, and thus reduce the humidity in the exhaust gas. In the fields of food, pharmaceuticals, chemicals, etc., it is necessary to heat liquids, such as milk, juice, liquid medicine, emulsion, heat transfer oil, etc., to meet the needs of industrial production and daily life.
[0003] Conventionally, heating of gas or liquid is usually performed by installing a heating device inside or at the bottom of the barrel, such as a resistance heating rod or a resistance heating coil, and generating heat by energizing the heating rod or the heating coil to achieve the purpose of heating the medium.
[0004] However, the conventional resistance heating rod usually heats the medium at one place in the barrel, which fails to increase the heating area of the medium and easily causes uneven heating of the medium, thereby reducing the heating effect of the medium. Utility Model Content
[0005] The utility model aims to provide an electric heat generating device which can increase the heating area of the medium and prevent the medium from being heated unevenly, thereby improving the heating effect of the medium, in view of the defects and shortcomings of the prior art.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an electric heat generating device, including a ferromagnetic barrel, an inlet provided at the lower end of the ferromagnetic barrel for connecting with an external input pipe for medium to enter the ferromagnetic barrel, a heat preservation layer provided at the outer peripheral side of the ferromagnetic barrel for preventing heat loss on the ferromagnetic barrel, an electromagnetic coil spirally wound on the heat preservation layer for passing through the heat preservation layer to heat the ferromagnetic barrel so as to heat the medium in the ferromagnetic barrel, an outlet provided at the upper end of the ferromagnetic barrel for connecting with an external output pipe and for the medium to be discharged outward after being heated by the heating device, and a fixing device provided between the electromagnetic coil and the heat preservation layer for fixing the electromagnetic coil on the heat preservation layer. The upper and lower ends of the heat preservation layer can be fixed to the outer surface of the ferromagnetic barrel by wrapping with adhesive tape.
[0007] A further improvement is that the thermal insulation layer is an aerogel felt layer or a rock wool board layer or a phenolic board layer.
[0008] A further improvement is that a plurality of auxiliary heating rods are equidistantly arranged in the ferromagnetic barrel, the plurality of auxiliary heating rods are equidistantly arranged along the longitudinal direction of the ferromagnetic barrel, and the auxiliary heating rods are radially arranged in the ferromagnetic barrel.
[0009] A further improvement is that the fixing device comprises at least two electromagnetic fixing wires longitudinally arranged between the electromagnetic coil and the thermal insulation layer, and an adhesive layer arranged between the electromagnetic fixing wires and the thermal insulation layer.
[0010] A further improvement is that a temperature sensor for detecting the medium in the ferromagnetic barrel is arranged in the ferromagnetic barrel.
[0011] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: when it is necessary to heat the medium, the circulating pump inputs the medium to the inlet through the input pipe, so that the medium enters the ferromagnetic barrel, and the electromagnetic coil passes through the thermal insulation layer to heat the ferromagnetic barrel, thereby heating the medium in the ferromagnetic barrel, which can increase the heating area of the medium, and is less likely to cause uneven heating of the medium. The thermal insulation layer prevents heat loss on the ferromagnetic barrel, thereby improving the heating effect of the medium.
[0012] Further effect: Setting the electromagnetic coil on the outside of the insulation layer can make the insulation layer and the ferromagnetic barrel fit better, reduce the gap between the insulation layer and the ferromagnetic barrel, and improve the insulation effect of the insulation layer on the ferromagnetic barrel. Compared with directly setting the insulation layer on the outer side of the electromagnetic coil, it can prevent the formation of a gap between the insulation layer and the ferromagnetic barrel and reduce the insulation effect on the ferromagnetic barrel.
[0013] Further effect: When the electromagnetic coil heats the medium in the ferromagnetic barrel, due to the high temperature of the hot air, the volume of the air gradually expands due to the heat. Although its mass remains unchanged, the density of the air becomes smaller and the weight becomes lighter, so that the hot air rises, and the cold air has a low temperature and a large air density, so the cold air goes downward, which can more effectively make the heat medium flow out from the outlet hole at the upper end of the ferromagnetic barrel.
[0014] Further effect: The temperature sensor can facilitate the staff to measure the temperature of the medium in the ferromagnetic barrel, so as to adjust the heating temperature of the ferromagnetic barrel by the electromagnetic coil through the control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a cutaway view of the ferromagnetic barrel in the utility model;
[0018] Figure 3 It is a top view cutaway view of the ferromagnetic barrel in the utility model.
[0019] Explanation of the reference numerals: ferromagnetic barrel 1, inlet 2, insulation layer 3, electromagnetic coil 4, outlet hole 5, auxiliary heating rod 6, electromagnetic fixing wire 7, temperature sensor 8. DETAILED DESCRIPTION
[0020] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.
[0021] See also Figures 1 to 3 As shown, the technical solution adopted in this specific embodiment is: an electric heat generating device, including a ferromagnetic barrel 1, an inlet 2 arranged at the lower end of the ferromagnetic barrel 1 for connecting with an external input pipe for medium to enter the ferromagnetic barrel 1, a thermal insulation layer 3 arranged on the outer peripheral side of the ferromagnetic barrel 1 for preventing heat loss on the ferromagnetic barrel 1, an electromagnetic coil 4 spirally wound on the thermal insulation layer 3 for passing through the thermal insulation layer 3 to heat the ferromagnetic barrel 1 so as to heat the medium in the ferromagnetic barrel 1, an outlet hole 5 arranged at the upper end of the ferromagnetic barrel 1 for connecting with an external output pipe and for discharging the medium outward after the medium is heated by the heating device, and a fixing device arranged between the electromagnetic coil 4 and the thermal insulation layer 3 for fixing the electromagnetic coil 4 on the thermal insulation layer 3. The upper and lower ends of the thermal insulation layer 3 can be fixed to the outer surface of the ferromagnetic barrel 1 by wrapping with adhesive tape. The electromagnetic wire is wound around the outer circumference of the ferromagnetic barrel 1, the negative pole of the electromagnetic wire is located at the lower end of the ferromagnetic barrel 1, and the positive pole of the electromagnetic wire is located above the ferromagnetic barrel 1. The negative pole and the positive pole of the electromagnetic wire are connected to the power supply respectively. Adhesive tape can be wound between the upper and lower ends of the ferromagnetic barrel 1 and the insulation layer 3.
[0022] The medium in the ferromagnetic barrel 1 can be heat transfer oil, which is collected and stored in a liquid storage tank. The liquid storage tank transports the heat transfer oil through an oil pipe. The heat transfer oil enters the ferromagnetic barrel 1 from the inlet 2 of the ferromagnetic barrel 1 in the oil pipe through a circulation pump. The heat transfer oil heated by the ferromagnetic barrel 1 flows out from the outlet hole 5 at the upper end of the ferromagnetic barrel 1 and flows into the liquid storage tank through the guide pipe. An object or equipment to be heated is arranged on the oil pipe, and the object or equipment is heated by the heated heat transfer oil. The heat transfer oil circulates continuously in the oil pipe, the liquid storage tank, the circulation pump, and the ferromagnetic barrel 1, thereby continuously heating the heat transfer oil. Figure 1 As shown, a plurality of ferromagnetic barrels 1 can be provided, and the plurality of ferromagnetic barrels 1 are connected to the inlet 2 and the outlet hole 5 of the ferromagnetic barrel 1 through an oil pipe, so that the heat transfer oil in the liquid storage tank is transported to the ferromagnetic barrel 1 through a circulation pump, and the heated heat transfer oil flows out from the outlet hole 5, and the heat transfer oil is heated by the plurality of ferromagnetic barrels 1 at the same time, thereby improving the heating effect of the heat transfer oil.
[0023] The medium in the ferromagnetic barrel 1 can also be air or other liquids. The air or other liquids are input into the ferromagnetic barrel 1 from the inlet 2 through a circulating pump, a water pump or an air pump, and the air or other liquids are heated by the electromagnetic coil 4. The heated air or other liquids flow out from the outlet hole 5. The outlet hole 5 can be directly connected to an external blowpipe or container to achieve heating of the air or other liquids. It can also be the same as the setting of heat transfer oil, by setting a storage tank and a circulating pump for circulating heating.
[0024] The insulation layer 3 is an aerogel felt layer or a rock wool board layer or a phenolic board layer. Aerogel felt has the characteristics of being soft, easy to cut, low density, inorganic fireproof, overall hydrophobic, and green and environmentally friendly. It can replace traditional flexible insulation materials such as glass fiber products, asbestos insulation felt, and silicate fiber products that are not environmentally friendly and have poor insulation performance. Rock wool board is a new type of insulation, flame retardant, and sound absorbing material. Phenolic board is a new generation of insulation, fireproof and soundproof material. It has the properties of being light, fireproof, non-burning when exposed to open flames, smokeless, non-toxic, and drip-free, and has a wide temperature range of use.
[0025] like Figure 2 As shown, a plurality of auxiliary heating rods 6 are equidistantly arranged in the ferromagnetic barrel 1, and the plurality of auxiliary heating rods 6 are equidistantly arranged along the longitudinal direction of the ferromagnetic barrel 1, and the auxiliary heating rods 6 are radially arranged in the ferromagnetic barrel 1. The power cord of the auxiliary heating rod 6 passes through the insulation layer 3 and is connected to the ferromagnetic barrel 1 and an external power supply. A metal mesh or aluminum foil is wrapped around the outside of the power cord, which can effectively shield the influence of the external magnetic field. The gap between the power cord and the insulation layer 3 can be sealed by adhesive.
[0026] The fixing device includes at least two electromagnetic fixing wires 7 longitudinally arranged between the electromagnetic coil 4 and the thermal insulation layer 3, and an adhesive layer (not shown in the figure) arranged between the electromagnetic fixing wires 7 and the thermal insulation layer 3. The adhesive layer (not shown in the figure) can be an organic silicone adhesive layer, a heat-resistant epoxy adhesive layer, or an inorganic adhesive layer.
[0027] The ferromagnetic barrel 1 is provided with a temperature sensor 8 for detecting the medium in the ferromagnetic barrel 1. The detection probe of the temperature sensor 8 is located in the ferromagnetic barrel 1, and its power line passes through the ferromagnetic barrel 1 and the insulation layer 3 to be connected to the external power supply. The outside of the power line is wrapped with a metal mesh or aluminum foil, which can effectively shield the influence of the external magnetic field. The gap between the power line and the insulation layer 3 can be sealed by adhesive.
[0028] The working principle of the utility model is as follows: when it is necessary to heat the medium, the circulating pump inputs the medium to the inlet 2 through the input pipe, so that the medium enters the ferromagnetic barrel 1, and the electromagnetic coil 4 passes through the thermal insulation layer 3 to heat the ferromagnetic barrel 1, thereby heating the medium in the ferromagnetic barrel 1, which can increase the heating area of the medium, and it is not easy to cause uneven heating of the medium, and the thermal insulation layer 3 prevents the heat loss on the ferromagnetic barrel 1, thereby improving the heating effect of the medium; the auxiliary heating rod 6 can be used to auxiliary heat the medium in the ferromagnetic barrel 1, thereby improving the heating effect of the medium; the temperature sensor 8 can facilitate the staff to measure the temperature of the medium in the ferromagnetic barrel 1, so as to adjust the heating temperature of the ferromagnetic barrel 1 by the electromagnetic coil 4 through the control cabinet.
[0029] The utility model is to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. As long as the components on the market can achieve the above functions of the utility model, they can be selected and applied as the electric heat generating device. Therefore, the model and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.
[0030] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.
Claims
1. An electric heat generating device, characterized in that: It includes a ferromagnetic barrel, an inlet arranged at the lower end of the ferromagnetic barrel and used to connect with an external input pipe so that a medium can enter the ferromagnetic barrel, a thermal insulation layer arranged on the outer peripheral side of the ferromagnetic barrel and used to prevent heat loss on the ferromagnetic barrel, an electromagnetic coil spirally wound on the thermal insulation layer and used to pass through the thermal insulation layer to heat the ferromagnetic barrel so as to heat the medium in the ferromagnetic barrel, an outlet hole arranged at the upper end of the ferromagnetic barrel and used to connect with an external output pipe and allow the medium to be discharged outward after being heated by a heating device, and a fixing device arranged between the electromagnetic coil and the thermal insulation layer and used to fix the electromagnetic coil on the thermal insulation layer.
2. The electric heat generating device according to claim 1, characterized in that: The thermal insulation layer is an aerogel felt layer, a rock wool board layer or a phenolic board layer.
3. The electric heat generating device according to claim 1, characterized in that: A plurality of auxiliary heating rods are equidistantly arranged in the ferromagnetic barrel, the plurality of auxiliary heating rods are equidistantly arranged along the longitudinal direction of the ferromagnetic barrel, and the auxiliary heating rods are radially arranged in the ferromagnetic barrel.
4. The electric heat generating device according to claim 1, characterized in that: The fixing device comprises at least two electromagnetic fixing wires longitudinally arranged between the electromagnetic coil and the thermal insulation layer, and an adhesive layer arranged between the electromagnetic fixing wires and the thermal insulation layer.
5. The electric heat generating device according to claim 1, characterized in that: The ferromagnetic barrel is provided with a temperature sensor for detecting the temperature of the medium in the ferromagnetic barrel.