Cylindrical fin heater
By incorporating heat-conducting fins and electric heating tubes within the cylindrical finned heater, the heat transfer path is optimized, solving the problem of heat accumulation, improving thermal efficiency and safety, and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN HUOSHUO THERMAL ENERGY TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-28
AI Technical Summary
Existing cylindrical finned heaters suffer from heat accumulation on their surface, leading to energy waste, low thermal efficiency, safety hazards, and shortened heater lifespan.
Heat-conducting fins are installed inside the cylindrical guide tube, and electric heating tubes are arranged inside the fins. By combining aluminum alloy material and heat-conducting strips, the heat transfer path is optimized, and heat is supplemented in key parts through a second electric heating tube.
It improves the efficiency of heat transfer to the target area, reduces surface temperature, reduces safety hazards, extends heater life, and reduces maintenance costs.
Smart Images

Figure CN224175333U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heater technology, specifically relating to a cylindrical finned heater. Background Technology
[0002] In many fields such as modern industrial production, scientific research experiments, and civil heating, the demand for efficient and stable heating equipment continues to grow. As a common heating device, cylindrical finned heaters are widely used in many scenarios due to their compact structure and ease of installation. This heater converts electrical energy into heat energy through an external heating method, providing heat to the target area.
[0003] The existing external heating mode of cylindrical finned heaters tends to cause a large amount of heat to accumulate on the heater surface during heating, making it difficult to effectively transfer heat to the target area or remove it in time. This not only wastes energy but also results in a low overall thermal efficiency, which cannot meet the needs of modern production with high energy consumption and high efficiency. Furthermore, the large amount of heat that cannot be dissipated in time causes the heater surface temperature to be too high. Excessive surface temperature can not only easily cause safety hazards such as burns but also accelerate the aging, deformation, and damage of the internal materials of the heater, greatly reducing the service life of the heater and increasing the maintenance and replacement costs of the equipment. Utility Model Content
[0004] The purpose of this invention is to provide a cylindrical finned heater to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cylindrical finned heater, comprising:
[0006] A cylindrical guide tube, wherein a liquid inlet sealing cap and a liquid outlet sealing cap are respectively bolted to both sides of the cylindrical guide tube;
[0007] The heat-conducting fins are provided in several groups, and all groups of heat-conducting fins are located inside a cylindrical guide tube. The liquid inlet sealing cap and the liquid outlet sealing cap are respectively provided with several water inlets and water outlets. The two ends of the heat-conducting fins are respectively connected to the water inlets and water outlets. The heat-conducting fins are provided with a first electric heating tube.
[0008] Preferably, a second electric heating tube is provided at the connection between the heat-conducting fins and the water inlet and outlet.
[0009] Preferably, the cylindrical guide tube is provided with two sets of sealing rings at the screw connection between it and the liquid inlet sealing cap and the liquid outlet sealing cap.
[0010] Preferably, both the liquid inlet sealing cap and the liquid outlet sealing cap have connectors at the center of their surfaces, and the connectors are provided with external threads.
[0011] Preferably, both the liquid inlet sealing cap and the liquid outlet sealing cap are connected to a fixing foot at the bottom.
[0012] Preferably, the heat-conducting fins are made of aluminum alloy and have several heat-conducting strips connected to them.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) By setting several sets of heat-conducting fins in the cylindrical guide tube and arranging the first electric heating tube in the heat-conducting fins, the heat-conducting fins can increase the heat transfer area, so that the heat can be transferred more effectively from the electric heating tube to the liquid medium flowing through, reducing the accumulation of heat on the surface of the heater, thereby improving the efficiency of heat transfer to the target area and reducing energy waste.
[0015] (2) Because heat can be quickly transferred to the liquid medium instead of accumulating on the surface of the heater, the surface temperature of the heater is significantly reduced. On the one hand, this reduces the risk of burns and other safety accidents caused by excessive surface temperature and improves the safety of use. On the other hand, the lower surface temperature slows down the aging, deformation and damage of the internal materials of the heater, extends the service life of the heater and reduces the maintenance and replacement costs of the equipment.
[0016] (3) By setting a second electric heating tube at the connection between the heat-conducting fins and the inlet and outlet, the heating effect on the liquid is further enhanced. The second electric heating tube supplements the heat at the key parts where the liquid enters and exits the heat-conducting fins, so that the liquid can be fully heated throughout the flow process, thereby improving the overall heating effect and heat transfer efficiency. Attached Figure Description
[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0018] Fig. 2 This is a schematic diagram of the structure of the present invention after disassembling the cylindrical guide tube;
[0019] Fig. 3 This is an exploded view of the present invention.
[0020] In the diagram: 1. Cylindrical guide tube; 2. Liquid inlet sealing cap; 3. Liquid outlet sealing cap; 4. Heat-conducting fins; 5. Water inlet; 6. Water outlet; 7. First heating element; 8. Second heating element; 9. Sealing ring; 10. Connector; 11. External thread; 12. Fixing foot; 13. Heat-conducting strip. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model provides, for example Figs. 1-3 A cylindrical finned heater shown includes:
[0023] A cylindrical guide tube 1, wherein a liquid inlet sealing cap 2 and a liquid outlet sealing cap 3 are respectively bolted to both sides of the cylindrical guide tube 1;
[0024] The heat-conducting fins 4 are provided in several groups and are all located inside the cylindrical guide tube 1. The liquid inlet sealing cap 2 and the liquid outlet sealing cap 3 are respectively provided with several water inlets 5 and water outlets 6. The two ends of the heat-conducting fins 4 are respectively connected to the water inlets 5 and water outlets 6. The heat-conducting fins 4 are provided with a first electric heating tube 7.
[0025] A second electric heating tube 8 is provided at the connection point between the heat-conducting fin 4 and the inlet 5 and outlet 6.
[0026] Two sets of sealing rings 9 are provided at the screw connections between the cylindrical guide pipe 1 and the liquid inlet sealing cap 2 and the liquid outlet sealing cap 3. The sealing rings 9 not only prevent liquid leakage, but also reduce the loss of heat to the external environment to a certain extent, ensuring that the heat can be used to heat the liquid to the maximum extent and improving the heating efficiency.
[0027] Both the liquid inlet sealing cap 2 and the liquid outlet sealing cap 3 are connected to a connector 10 at the center of their surfaces, and the connector 10 is provided with an external thread 11. The design of the connector 10 and its external thread 11 makes the connection between the heater and the external pipe simple and efficient. The operator only needs to align the pipe or fitting with the internal thread with the connector 10 and rotate it to complete the tight connection between the two.
[0028] Both the liquid inlet sealing cap 2 and the liquid outlet sealing cap 3 are connected to a fixing foot 12 at the bottom. The fixing foot 12 facilitates the installation of the heater. During the installation process, the staff can quickly determine the installation position of the heater through the fixing foot 12.
[0029] The heat-conducting fins 4 are made of aluminum alloy and are connected to several heat-conducting strips 13. The heat-conducting strips 13 further optimize the heat conduction process and increase the surface area for heat conduction. When the first heating tube 7 and the second heating tube 8 are heated, the heat can not only be conducted through the main body of the heat-conducting fins 4, but also spread rapidly along the heat-conducting strips 13.
[0030] In this cylindrical finned heater, during the entire heating process, the external pipe is connected to the liquid inlet sealing cover 2 through the connector 10. The liquid medium is driven by external power (such as the pressure of a pump) and enters the liquid inlet sealing cover 2 through the connector 10. Subsequently, the liquid flows into the heat-conducting fins 4 from the water inlets 5 evenly distributed on the liquid inlet sealing cover 2. The evenly distributed water inlets 5 ensure that the liquid can enter each heat-conducting fin 4 evenly. The core heating components of this heater are the first electric heating tube 7 and the second electric heating tube 8. After the equipment is powered on, the first electric heating tube 7 and the second electric heating tube 8 are quickly connected to the power circuit, and electrical energy is converted into heat energy. The first electric heating tube 7 is located inside the heat-conducting fins 4, and it continuously generates a large amount of heat, becoming the main heat source for heating the liquid.
[0031] The second heating element 8 is located at the junction of the heat-conducting fins 4 and the inlet 5 and outlet 6. It plays a crucial role at the critical points where liquid enters and exits the heat-conducting fins 4. When the low-temperature liquid first enters the heat-conducting fins 4, the second heating element 8 initially heats it, raising its initial temperature. When the liquid flows out of the heat-conducting fins 4, the second heating element 8 provides supplementary heating, ensuring the liquid receives sufficient heat throughout the flow process and improving the overall heating effect. Furthermore, because the heat-conducting fins 4 are made of aluminum alloy, a material with excellent thermal conductivity, they can quickly absorb the heat generated by the first heating element 7 and the second heating element 8. Simultaneously, the heat-conducting fins 4... The several heat-conducting strips 13 connected to the top further optimize heat transfer. The heat-conducting strips 13 increase the surface area and path of heat transfer, so that heat can be transferred more efficiently and evenly from the heating tube to all parts of the heat-conducting fins 4. When the liquid flows through the heat-conducting fins 4, the heat is quickly transferred from the high temperature heat-conducting fins 4 to the low temperature liquid medium by thermal conduction, realizing rapid heating of the liquid. After the liquid completes the heat exchange in the heat-conducting fins 4, it will flow out from the outlet 6 at the other end of the heat-conducting fins 4, and then be transported to the target area through the connector 10 on the liquid outlet sealing cap 3, realizing the effective output of the heated liquid and meeting the usage needs of different scenarios.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cylindrical finned heater, characterized in that, include: A cylindrical guide tube (1) is provided, and a liquid inlet sealing cap (2) and a liquid outlet sealing cap (3) are respectively screwed and fixed on both sides of the cylindrical guide tube (1) by bolts. The heat-conducting fins (4) are provided in several groups and all groups of heat-conducting fins (4) are provided in the cylindrical guide tube (1). The liquid inlet sealing cap (2) and the liquid outlet sealing cap (3) are respectively provided with several water inlets (5) and water outlets (6). The two ends of the heat-conducting fins (4) are respectively connected to the water inlets (5) and water outlets (6). The heat-conducting fins (4) are provided with a first electric heating tube (7).
2. A cylindrical finned heater according to claim 1, characterized in that: A second electric heating tube (8) is provided at the connection point between the heat-conducting fin (4) and the inlet (5) and outlet (6).
3. A cylindrical finned heater according to claim 1, characterized in that: Two sets of sealing rings (9) are provided at the screw connections between the cylindrical guide tube (1) and the liquid inlet sealing cap (2) and the liquid outlet sealing cap (3).
4. A cylindrical finned heater according to claim 1, characterized in that: Both the liquid inlet sealing cap (2) and the liquid outlet sealing cap (3) are connected to a connector (10) at the center of their surfaces, and the connector (10) is provided with an external thread (11).
5. A cylindrical finned heater according to claim 1, characterized in that: The bottom of both the liquid inlet sealing cap (2) and the liquid outlet sealing cap (3) are connected to fixing feet (12).
6. A cylindrical finned heater according to claim 1, characterized in that: The heat-conducting fins (4) are made of aluminum alloy and have several heat-conducting strips (13) connected to them.