Liquid heat conducting device
By using a liquid heat transfer device to heat edible oil, the problem of burnt taste caused by electric heating is solved, and uniform heating and energy-saving effects are achieved, improving the quality of edible oil and the economics of equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杨川
- Filing Date
- 2025-07-23
- Publication Date
- 2026-05-29
AI Technical Summary
In current edible oil processing, electric heating tubes and electromagnetic heating methods cause edible oil to have a burnt taste, and the maintenance costs are high, energy consumption is high, and uniform heating cannot be achieved.
A liquid heat transfer device is used to heat the heat transfer oil through an electric heating rod. The heat transfer oil then heats the cooking oil in the container and coil, avoiding direct contact between the cooking oil and the electric heating rod. Combined with the jacketed coil and insulation cotton structure, uniform heating and energy saving are achieved.
It solved the problem of burnt taste in cooking oil, improved product quality, reduced maintenance costs and energy consumption, and achieved uniform and rapid heating and high energy efficiency.
Smart Images

Figure CN224302330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edible oil processing technology, and in particular to a liquid heat conduction device. Background Technology
[0002] After edible oil is physically pressed, the extracted oil will also contain water because the oilseed crops contain water, so dehydration treatment is necessary.
[0003] A search revealed an existing technology for an edible oil refining and dehydration device (publication number: CN22286, exhaust pipe 1457U), which includes a distillation column and a base fixedly installed at the lower end of the distillation column. An annular seal is movably connected inside the base and supported on the outer wall of the bottom of the distillation column. The annular seal has a guide hole corresponding to the discharge port at the lower end of the distillation column. The annular seal includes an annular rotary piston that is slidably connected to the discharge pipe and the corresponding position of the distillation column, and a piston support frame that is used to fix the annular rotary piston and is slidably connected to an annular groove provided on the base. The guide hole is provided on the annular rotary piston and the piston support frame.
[0004] Currently, the commonly used heating methods are electric heating tubes and electromagnetic heating. Their disadvantages are: direct contact with the oil causes a layer of black oxide to adhere to the surface of the heating element or the carrier of the electromagnetic heating element, resulting in a burnt or scorched taste in the heated oil. Continuous processing also leads to high energy consumption, as the oil needs to be reheated after each batch. Furthermore, electromagnetic heating uses copper coils, resulting in high maintenance and replacement costs for most small oil pressing workshops.
[0005] Therefore, we propose a liquid heat conduction device. Utility Model Content
[0006] The present invention mainly addresses the technical problem that direct heating can easily cause a burnt taste in cooking oil by providing a liquid heat conduction device.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a liquid heat conduction device, comprising:
[0008] A frame, with a container for holding oil on top of the frame;
[0009] A heating structure, mounted on a frame, is used to heat a container. The heating structure includes a shell, a heating rod, and a coil. The shell is fixedly installed on the frame and has a cavity. The heating rod extends into the cavity of the shell. The coil is located inside the cavity. One end of the coil penetrates the container and enters the container. The other end of the coil penetrates the shell and extends to the outside of the shell for material injection.
[0010] In a preferred embodiment of this invention, the heating structure further includes an inner liner, which is fixedly installed with the outer shell, and the outer shell and the inner liner together form a heat insulation barrier outside the container.
[0011] In a preferred embodiment of this utility model, the outer shell forms a sealed cylinder, the inner liner is fixedly installed inside the outer shell, the inner liner is filled with heat-conducting oil, both the outer shell and the inner liner are provided with mounting holes, a sleeve is fixedly installed in the mounting holes, the heating rod is installed in the sleeve, and the end of the heating rod is locked and sealed to the sleeve through a flange.
[0012] In a preferred embodiment of this utility model, the coil is spiral-shaped, surrounds the outer wall of the container, the upper end of the coil extends through the container into the container cavity, and the lower end of the coil is used for material injection.
[0013] In a preferred embodiment of this utility model, a pipe for discharging material is fixedly installed at the bottom of the container, and the pipe extends downward through the outer shell and the inner liner.
[0014] As a preferred embodiment of this utility model, the upper side of the outer shell has an oil inlet for adding heat-conducting oil, and an oil inlet pipe is fixedly installed inside the oil inlet. The other side of the upper part of the outer shell has an exhaust port, and an exhaust pipe is fixedly installed inside the exhaust port. The bottom of the outer shell is provided with an oil outlet for discharging heat-conducting oil, and an oil drain pipe is fixedly installed inside the oil outlet.
[0015] As a preferred embodiment of this utility model, the outer shell surface is covered with insulating cotton for heat preservation.
[0016] This invention provides a liquid heat conduction device. It has the following beneficial effects:
[0017] 1. This liquid heat transfer device connects an electric heating rod to a power source and a control switch. A thermocouple is also installed inside the container to control the temperature of the heat transfer oil. The thermocouple is connected to a controller. The heating rod heats the heat transfer oil, which in turn heats the oil flowing through the coil. Simultaneously, the heat transfer oil also heats the bottom and outer wall of the container, raising its temperature. The edible oil flowing through the coil is initially heated and then sent into the container for further heating and dehydration. Because the edible oil does not come into contact with the heating rod throughout the process, it will not develop a burnt taste, thus improving product quality. Furthermore, the heat transfer oil is less prone to scaling when in contact with the coil and heating rod, ensuring good thermal conductivity and relatively high energy utilization.
[0018] 2. This liquid heat transfer device uses heat transfer oil with constant temperature heat transfer and heat preservation functions. The unique jacketed coil oil inlet structure increases the heat transfer area, improves thermal efficiency, and makes heating more uniform and faster. The heated cooking oil will not have a burnt or scorched taste. The jacketed box is wrapped with heat insulation cotton, which, combined with the heat transfer oil's own heat preservation properties, can achieve a good energy-saving effect during continuous use.
[0019] 3. This liquid heat conduction device uses a pad to create a gap between the bottom of the container and the bottom of the inner liner, ensuring that the heat conduction oil can flow at the bottom of the container, thereby improving the heating effect on the bottom of the container and ensuring the uniformity of heating of the container. Attached Figure Description
[0020] Figure 1 This is one of the overall perspective views of this utility model;
[0021] Figure 2 This is the second overall perspective view of the present utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the inner liner of this utility model;
[0023] Figure 4 This is a perspective view of the heating structure of this utility model;
[0024] Figure 5 This is a partial cross-sectional view of the inner liner and outer shell of this utility model.
[0025] Legend: 10. Frame; 11. Container; 12. Filling pipe; 13. Oil drain pipe; 14. Exhaust pipe; 20. Outer shell; 21. Heating rod; 22. Inner liner; 23. Coil. Detailed Implementation
[0026] A liquid heat conduction device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The above includes:
[0027] A frame 10, with a container 11 for loading oil on top of the frame 10;
[0028] A heating structure, mounted on a frame 10, is used to heat a container 11. The heating structure includes a shell 20, a heating rod 21, and a coil 23. The shell 20 is fixedly installed on the frame 10 and has a cavity. The heating rod 21 extends into the cavity of the shell 20, and the coil 23 is located within the cavity. One end of the coil 23 penetrates the container 11 and enters the container 11, while the other end of the coil 23 penetrates the shell 20 and extends to the outside of the shell 20 for material injection. The heating structure also includes an inner liner 22, which is fixedly installed on the shell 20. The inner liner 22 together forms a heat insulation barrier on the outside of the container 11. The outer shell 20 forms a sealed cylinder. The inner liner 22 is fixedly installed inside the outer shell 20. The inner liner 22 is filled with heat-conducting oil. Both the outer shell 20 and the inner liner 22 have mounting holes. A sleeve is fixedly installed in the mounting hole. The heating rod 21 is installed in the sleeve. The end of the heating rod 21 is locked and sealed to the sleeve through a flange. The coil 23 is spiral in shape and surrounds the outer wall of the container 11. The upper end of the coil 23 penetrates the container 11 and extends into the cavity of the container 11. The lower end of the coil 23 is used for filling.
[0029] This solution primarily addresses the heating and dehydration process in edible oil processing. Existing technologies mainly rely on electric heating rods directly contacting the oil to raise its temperature and evaporate moisture. However, this process easily leads to scorching and scaling on the heating rod surface, affecting heating efficiency and causing a burnt taste in the oil, thus limiting product quality. In this solution, the heating rod 21 is connected to a power source and a control switch. Additionally, a thermocouple is installed inside the inner tank 22 to control the temperature of the heat-conducting oil. The thermocouple is connected to a controller, and the heating rod 21 heats the heat-conducting oil. The heat transfer oil heats the oil flowing through the coil 23, and also heats the bottom and outer wall of the container 11, causing the container 11 to heat up. The edible oil flowing through the coil 23 is initially heated and then sent into the container 11 for further heating and dehydration. Since the edible oil does not come into contact with the heating rod 21 throughout the process, it will not produce a burnt taste, thus improving the quality of the product. On the other hand, the heat transfer oil is less likely to form scale when in contact with the coil 23 and the heating rod 21, ensuring thermal conductivity and relatively high energy utilization.
[0030] The heat transfer oil has constant temperature heat conduction and heat preservation functions. The unique jacketed coil oil inlet structure increases the heat conduction area, improves thermal efficiency, and makes heating more uniform and faster. The heated cooking oil will not have a burnt or scorched taste. The jacketed box is wrapped with heat insulation cotton, which, together with the heat transfer oil itself, can achieve a good energy-saving effect during continuous use.
[0031] like Figure 4 and Figure 5The container 11 is fixedly equipped with a pipe for discharging material at the bottom. The pipe extends downward through the outer shell 20 and the inner liner 22. An observation window is welded to the outside of the container 11. A sealing flange is provided at the observation window. A sealing ring and an observation plate are provided between the sealing flange and the observation window. A pad is provided at the bottom of the container 11. The pad is placed at the bottom of the inner liner 22. The bottom of the container 11 and the bottom of the inner liner 22 are separated by the pad to allow for the flow of oil.
[0032] The pipe is connected to a valve to control its start and stop. The observation window allows for easy observation of the heating status of the cooking oil inside container 11. The pad is made of high-temperature resistant material, such as steel. The pad creates a gap between the bottom of container 11 and the bottom of inner liner 22, ensuring that the heat transfer oil can flow at the bottom of container 11, thereby improving the heating effect on the bottom of container 11 and ensuring the uniformity of heating of container 11.
[0033] The upper side of the outer shell 20 has an oil inlet for adding heat transfer oil, and an oil inlet pipe 12 is fixedly installed inside the oil inlet. The other side of the upper part of the outer shell 20 has an exhaust port, and an exhaust pipe 14 is fixedly installed inside the exhaust port. The bottom of the outer shell 20 has an oil outlet for discharging heat transfer oil, and an oil drain pipe 13 is fixedly installed inside the oil outlet. Both the oil inlet pipe 12 and the oil drain pipe 13 are equipped with valves. The oil inlet pipe 12 is used to add heat transfer oil, and the oil drain pipe 13 is used to discharge waste heat transfer oil. A pressure relief valve is fixedly installed at the port of the exhaust pipe 14 to ensure that the pressure inside the container 11 is within a safe threshold.
[0034] The outer shell 20 is covered with insulating cotton for heat preservation. The coil 23 is fixedly installed on the outer wall of the container 11. The insulating cotton is used to increase the heat preservation performance of the outer shell and reduce the increase in energy consumption caused by heat conduction.
[0035] The working principle of this utility model is as follows: The heating rod 21 is connected to a power supply and a control switch. Of course, a thermocouple should also be installed in the inner liner 22 to control the temperature of the heat transfer oil. The thermocouple is connected to the controller. The heat transfer oil is heated by the heating rod 21. On the one hand, the heat transfer oil heats the oil flowing through the coil 23. On the other hand, the heat transfer oil also heats the bottom and outer wall of the container 11, causing the container 11 to heat up. The cooking oil flowing through the coil 23 is initially heated and then sent into the container 11 for further heating and dehydration. Since the cooking oil does not come into contact with the heating rod 21 throughout the process, it will not produce a burnt taste, and the quality of the product is guaranteed. The heat transfer oil has constant temperature heat conduction and heat preservation functions. The unique jacketed coil oil inlet structure increases the heat conduction area, improves thermal efficiency, and makes the heating more uniform and faster. The spacer blocks form a gap between the bottom of the container 11 and the bottom of the inner liner 22, ensuring that the heat transfer oil can flow at the bottom of the container 11, thereby improving the heating effect on the bottom of the container 11.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A liquid heat conduction device, characterized in that, include: A frame (10) is provided above which a container (11) for loading oil is provided. A heating structure is installed on the frame (10) for heating the container (11). The heating structure includes a shell (20), a heating rod (21), and a coil (23). The shell (20) is fixedly installed on the frame (10). The shell (20) has a cavity. The heating rod (21) extends into the cavity of the shell (20). The coil (23) is located in the cavity. One end of the coil (23) penetrates the container (11) and enters the container (11). The other end of the coil (23) penetrates the shell (20) and extends to the outside of the shell (20) for material injection.
2. The liquid heat conduction device according to claim 1, characterized in that: The heating structure also includes an inner liner (22), which is fixedly installed with the outer shell (20). The outer shell (20) and the inner liner (22) together form a heat insulation barrier outside the container (11).
3. The liquid heat conduction device according to claim 2, characterized in that: The outer shell (20) forms a sealed cylinder, and the inner liner (22) is fixedly installed inside the outer shell (20). The inner liner (22) is filled with heat-conducting oil. Both the outer shell (20) and the inner liner (22) have mounting holes. A sleeve is fixedly installed in the mounting hole. The electric heating rod (21) is installed in the sleeve. The end of the electric heating rod (21) is locked and sealed to the sleeve through a flange.
4. The liquid heat conduction device according to claim 1, characterized in that: The coil (23) is spiral-shaped and surrounds the outer wall of the container (11). The upper end of the coil (23) extends through the container (11) into the cavity of the container (11), and the lower end of the coil (23) is used for material injection.
5. The liquid heat conduction device according to claim 1, characterized in that: The bottom of the container (11) is fixedly equipped with a pipe for discharging material, which extends downward through the outer shell (20) and the inner liner (22).
6. The liquid heat conduction device according to claim 1, characterized in that: The upper side of the outer shell (20) has an oil inlet for adding heat-conducting oil, and an oil inlet pipe (12) is fixedly installed inside the oil inlet. The other side of the upper part of the outer shell (20) has an exhaust port, and an exhaust pipe (14) is fixedly installed inside the exhaust port. The bottom of the outer shell (20) is provided with an oil outlet for discharging heat-conducting oil, and an oil drain pipe (13) is fixedly installed inside the oil outlet.
7. The liquid heat conduction device according to claim 1, characterized in that: The outer shell (20) is covered with insulating cotton for heat preservation.