Straight barrel heating body

Abstract

The utility model relates to the field of heating equipment, in particular to a straight barrel heating body. Comprising a shell, and a heat exchange water channel penetrating in the length direction of the shell is arranged in the shell; a plurality of mounting holes penetrating in the length direction are formed in the periphery of the shell; the electric heating tube is mounted in the mounting hole, and the outer wall of the electric heating tube clings to the inner wall of the mounting hole; the outer box is arranged on the outer side of the shell; fixing brackets are arranged at the two ends of the outer box; and joints are arranged on the shell at the two ends of the heat exchange water channel and extend out of the fixed bracket. The full-wrapping type electric heating pipe is adopted, so that the electric heating pipe is separated from the heat insulation layer, the outer wall of the electric heating pipe can be completely attached to the mounting hole, heat of the electric heating pipe can be transmitted to the shell and water in the heat exchange water channel more quickly, the heat efficiency is improved, and more energy is saved relatively; the contact area with the heat exchange agent can be increased through the cooling fins and the heat dissipation frame in the heat exchange water channel, and heat exchange is faster.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment, specifically a straight-barrel heating element. Background Technology

[0002] Electric heating equipment generally uses a method of isolating the heating element from the heat exchange fluid. The electric heating element heats the heat exchange fluid through a copper or aluminum alloy shell. However, the disadvantage of electric heaters is that some heat is lost to the surrounding environment, resulting in reduced thermal efficiency and a short service life of the heating element. Therefore, those skilled in the art need to continuously discover the causes of low thermal efficiency and improve its structure to improve thermal efficiency. Utility Model Content

[0003] In order to solve some problems existing in the heaters of the prior art, this utility model provides a straight barrel heating element.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a straight-barrel heating element, including a shell, and a hot water exchange channel running through the shell along its length.

[0005] The outer periphery of the housing is provided with multiple mounting holes that extend along the length direction;

[0006] An electric heating element is installed in a mounting hole, with the outer wall of the electric heating element in close contact with the inner wall of the mounting hole;

[0007] The outer box is installed on the outside of the casing;

[0008] The outer box is provided with fixed brackets at both ends;

[0009] The shells at both ends of the hot water exchange channel are equipped with connectors that extend from the fixed brackets.

[0010] Furthermore, the inner wall of the hot water exchange channel is provided with a plurality of heat dissipation fins arranged along the axial direction.

[0011] Furthermore, the hot water exchange channel is equipped with a fan frame with a cross-section in the shape of a cross.

[0012] Furthermore, a heat insulation layer is provided between the outer box and the shell.

[0013] Furthermore, the number of mounting holes is 12.

[0014] Furthermore, one of the fixed brackets has through holes corresponding to the electric heating element.

[0015] Furthermore, the electric heating tubes are grouped in pairs, with one end of each pair electrically connected on the same side and the other end connected to the neutral wire and the live wire respectively; a silicone sleeve is provided at the connection point.

[0016] Furthermore, the outer surface of the housing is machined into an arc-shaped protrusion corresponding to the mounting hole; the heat insulation layer is heat insulation cotton.

[0017] Furthermore, the housing and outer box are made of aluminum alloy.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This application uses a fully enclosed electric heating tube, which separates the electric heating tube from the insulation layer. The outer wall of the electric heating tube can completely fit the mounting hole, allowing the heat from the electric heating tube to be transferred to the shell and the water in the hot water exchange channel more quickly, thus improving thermal efficiency and being more energy-efficient.

[0020] The heat exchange fins and fan brackets inside the hot water exchange channel can increase the contact area with the heat exchanger, making heat exchange more rapid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the straight-barrel heating element provided by this utility model;

[0022] Figure 2 This is an axial side view of the straight-barrel heating element provided by this utility model;

[0023] Figure 3 This is an axial side view of the straight-barrel heating element provided by this utility model;

[0024] Figure 4 An axial side view of the straight-barrel heating element provided by this utility model without the outer casing installed;

[0025] Figure 5 A cross-sectional view of the components of the straight-barrel heating element provided by this utility model;

[0026] The components include: 1. Hot water exchange channel; 2. Shell; 3. Mounting hole; 4. Electric heating element; 5. Outer box; 6. Insulation layer; 7. Fixing bracket; 8. Connector; 9. Silicone sleeve; 10. Heat sink; 11. Fan bracket. Detailed Implementation

[0027] 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.

[0028] like Figures 1-5 As shown, this embodiment provides a straight-barrel heating element, including a shell 2, and a water exchange channel 1 that runs through the shell 2 along its length. The cross-section of the water exchange channel 1 is circular.

[0029] The outer periphery of the housing 2 is provided with a plurality of mounting holes 3 that extend along the length direction; the mounting holes 3 are arranged at equal intervals along the outer periphery of the housing 2.

[0030] The electric heating element 4 is installed in the mounting hole 3. Both ends of the electric heating element 4 extend out of the mounting hole 3, so that the shell 2 completely covers the electric heating element 4, so that the water in the hot water exchange channel 1 can absorb heat faster and the thermal efficiency is higher. The electric heating element 4 is an alumina ceramic heating element, which has the advantages of rapid and uniform heating, large heating surface, low power consumption, long service life and good heat preservation performance.

[0031] The outer box 5 is installed on the outside of the shell 2; the two ends of the outer box 5 are provided with fixing brackets 7, and the lower end of the fixing brackets 7 is provided with mounting feet. The mounting feet have two waist holes for installing and adjusting the position of the straight barrel heating element; the shell 2 and the box 5 are made of aluminum alloy and the surface is oxidized so that a very thin layer of aluminum oxide film is formed on the inner wall of the water exchange channel 1 and the surface of the shell 2 and the box 5, which has a certain corrosion resistance.

[0032] The housing 2 at both ends of the hot water exchange channel 1 is provided with connectors. The connectors 8 extend from the fixed bracket 7 and are connected to the inlet pipe and the outlet pipe respectively. In this embodiment, the connectors 8 are threaded connectors.

[0033] In another embodiment of this application, a heat insulation layer 6 is installed between the outer box 5 and the shell 2 to prevent heat exchange with the environment; the outer surface of the shell 2 is machined into an arc-shaped protrusion corresponding to the mounting hole 3, so that the electric heating element 4 is approximately located in the middle of the shell 2, and the thickness of the shell 2 outside the mounting hole 3 is uniform, so that the shell 2 is heated more evenly. Compared with the traditional hexagonal shell, the amount of aluminum alloy used is reduced. The heat insulation layer 6 is heat insulation cotton. The cross-section of the outer box 5 is a regular hexagon or a circle. In this embodiment, the outer box 5 is a regular hexagon. The top surface of the outer box 5 is horizontal, and a thermostat can be installed on it. The distance between opposite sides (width) of the outer box 5 is 85.3mm. The distance from the top of the outer box 5 to the bottom of the fixed bracket 7 is 107mm. The width of the connector 8 is 25mm, the diameter of the connector 8 is 32mm, and the diameter of the electric heating element 4 is 7.8-7.9mm. According to different market demands, the straight barrel heating element can have different sizes and specifications.

[0034] In another embodiment of this application, the inner wall of the hot water exchange channel 1 is provided with a plurality of radiator 10 arranged along the axial direction. The radiator 10 is arranged at equal intervals, which can increase the contact area between the inner wall of the hot water exchange channel 1 and the heat exchange agent and improve the heat exchange effect.

[0035] In another embodiment of this application, the inner wall of the hot water channel 1 is provided with a plurality of radiator 10 arranged along the axial direction. The radiator 10 is arranged at equal intervals. The hot water channel 1 is also provided with a fan frame 11 with a cross section of "+", which can increase the contact area with the heat exchanger, so that the water absorbs heat faster, the thermal efficiency is higher and energy saving is achieved, and the electric heating tube 4 is better protected.

[0036] In another embodiment of this application, the number of mounting holes is 12.

[0037] In another embodiment of this application, a through hole corresponding to the electric heating tube 4 is processed on one side of the fixed bracket 7, so that the electric heating tube 4 extends out from the fixed bracket 7. Each pair of adjacent electric heating tubes 4 is a group, and there are a total of 6 groups. One end of each group of electric heating tubes 4 on the same side is electrically connected, and the other end is connected to the neutral wire and the live wire respectively. A silicone sleeve 9 is provided at the connection.

[0038] Add a heat exchanger, such as water, to the hot water exchange channel 1. Under special conditions, a heat exchanger with better performance can be selected according to the needs. The heat exchanger is water, and a heat exchanger with better performance can be selected in extreme environments.

[0039] The assembly process for a straight-barrel heating element is as follows:

[0040] Place the electric heating element 4 into the mounting hole 3 of the housing 2, install the heat insulation layer 6 and the outer box 5 in sequence, connect the electric heating elements 4 that need to be connected together, install the fixing brackets 7 at both ends, and tighten them with 6 M4 screws. Connect the power cord and water pipe, and a complete straight barrel heating element is assembled. The process is simple.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straight-barrel heating element, characterized in that: Includes a shell, and the shell contains a hot water exchange channel that runs through it along its length; The outer periphery of the housing is provided with multiple mounting holes that extend along the length direction; An electric heating element is installed in a mounting hole, with the outer wall of the electric heating element in close contact with the inner wall of the mounting hole; The outer box is installed on the outside of the casing; The outer box is provided with fixed brackets at both ends; The housings at both ends of the hot water exchange channel are equipped with connectors that extend from the fixed brackets; A heat insulation layer is provided between the outer box and the shell.

2. The straight-barrel heating element according to claim 1, characterized in that: The inner wall of the hot water exchange channel is provided with multiple heat dissipation fins arranged along the axial direction.

3. The straight-barrel heating element according to claim 1 or 2, characterized in that: The hot water exchange channel is equipped with a fan frame with a cross-section in the shape of a cross.

4. The straight-barrel heating element according to claim 1, characterized in that: The number of mounting holes is 12.

5. The straight-barrel heating element according to claim 1, characterized in that: One of the fixed brackets has a through hole corresponding to the electric heating element.

6. The straight-barrel heating element according to claim 1, characterized in that: The electric heating elements are grouped in pairs. One end of each pair of heating elements is electrically connected on the same side, and the other end is connected to the neutral wire and the live wire respectively. A silicone sleeve is provided at the connection point.

7. The straight-barrel heating element according to claim 1, characterized in that: The outer surface of the housing is machined into arc-shaped protrusions corresponding to the mounting holes; the heat insulation layer is heat insulation cotton.

8. The straight-barrel heating element according to claim 1, characterized in that: The shell and outer box are made of aluminum alloy.

Images