Circulating heating body

Abstract

The utility model relates to the field of heating equipment, in particular to a circulating heating body which comprises a hollow shell, and one end of the shell is open; a three-way valve is mounted on the opening; the heat exchange pipe is inserted into the shell from the water outlet of the three-way valve, a water inlet channel is formed between the heat exchange pipe and the inner wall of the shell, and the water inlet channel is communicated with the water inlet end of the three-way valve; a plurality of electric heating tubes are installed on the shell in the length direction. The threads are arranged on the outer walls of the heat exchange pipes of the circulating heating body, the threads can increase the length of a water path, the heat efficiency of the heating body is higher, the water inlet and the water outlet are formed in the same side through cooperation of the three-way valve and the heat exchange pipes, the length of the whole heating body is shortened, and later maintenance and replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of heating equipment, in particular to a circulating heating body. Background Art

[0002] Generally, the heat of the motor is generally heated by isolating the heating body from the heat exchange liquid. The electric heating body heats the heat exchange liquid through a copper or aluminum alloy shell.

[0003] However, the length of the heating body is limited, and the heat exchange effect will be affected.

[0004] In order to set the water inlet and outlet on the same side, it is necessary to increase the number of elbows and the number of heating bodies. As shown in CN220170022U, multiple elbows and multiple groups of heating bodies are used to achieve single-side water inlet and outlet. Content of the Utility Model

[0005] In order to solve some problems existing in the heating body in the prior art, the utility model provides a circulating heating body.

[0006] To achieve the above object, the technical solution adopted by the utility model is: a circulating heating body, including a hollow shell with one end open; a three-way valve is installed on the opening.

[0007] A heat exchange tube is inserted into the shell from the water outlet of the three-way valve. An inlet water channel is formed between the heat exchange tube and the inner wall of the shell, and the inlet water channel is communicated with the water inlet end of the three-way valve.

[0008] A plurality of electric heating tubes are installed along the length direction of the shell.

[0009] Further, the three-way valve is a T-shaped valve.

[0010] Further, a joint is provided at the water outlet end of the three-way valve for fixing the heat exchange tube.

[0011] Further, a gap is left between the bottom of the heat exchange tube and the shell to communicate the inlet water channel with the inside of the heat exchange tube.

[0012] Further, the outer wall of the heat exchange tube is provided with threads.

[0013] Further, brackets are provided at both ends of the shell.

[0014] Further, the cross-section of the shell is a regular hexagon or a circle.

[0015] Further, a plurality of installation grooves are arranged along the length direction on the outer periphery of the shell; the electric heating tubes are installed in the installation grooves.

[0016] Further, the number of the installation grooves is 12.

[0017] Further, it further includes an outer box, which is installed on the outer side of the housing, and a heat insulation layer is installed between the outer box and the housing.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The outer wall of the heat exchange tube of the circulating heating body of the present application is provided with threads, which can increase the water path length and make the heating efficiency of the heating body higher. Through the cooperation of the three-way valve and the heat exchange tube, the water inlet and outlet are arranged on the same side, shortening the length of the entire heating body and facilitating future maintenance and replacement. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the circulating heating body provided by the present utility model;

[0020] Figure 2 It is a side view of the circulating heating body provided by the present utility model;

[0021] Figure 3 It is a side view of the circulating heating body provided by the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the heat exchange tube provided by the present utility model;

[0023] Figure 5 It is a schematic structural diagram of the three-way valve provided by the present utility model;

[0024] Figure 6 It is a cross-sectional view of the housing and the outer box provided by the present utility model;

[0025] Wherein: housing 1, three-way valve 2, heat exchange tube 3, electric heating tube 4, joint 5, thread 6, bracket 7, installation groove 8, outer box 9, heat insulation layer 10. Specific Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] As Figures 1 - 6 shown, this embodiment provides a circulating heating body, which includes a hollow housing 1 with a cylindrical inner cavity. One end of the housing 1 is open, and a three-way valve 2 is installed on the opening 1;

[0028] The heat exchange tube 3 is inserted into the housing 1 from the water outlet of the three-way valve 2, that is, from Figure 1The left side of the [description is missing, assuming it's something specific] is inserted into the housing 1, and the left end of the heat exchange tube 3 is stuck on the shoulder of the water outlet. A water inlet channel is formed between the heat exchange tube 3 and the inner wall of the housing 1, isolating the cold water in the water inlet channel from the hot water in the heat exchange tube 3. The water inlet channel is connected to the water inlet end of the three-way valve;

[0029] A plurality of electric heating tubes 4 are installed along the length direction of the housing 1. Cold water enters the water inlet channel through the water inlet of the three-way valve 2, and the cold water in the water inlet channel is heated by the electric heating tubes 4 and then flows out from the water outlet of the three-way valve 2 along the heat exchange tube 3.

[0030] The cold and hot water are isolated, with water inlet and outlet at the same end, reducing the size of the heating body and making installation more convenient.

[0031] In another embodiment of the present application, the three-way valve is a T-shaped valve and is automatically opened by the water pressure.

[0032] In another embodiment of the present application, a joint 5 is provided at the water outlet of the three-way valve 2. The end of the joint 5 away from the three-way valve 2 is hexagonal, and the joint 5 and the three-way valve 2 are connected by threads. Tightening the joint 5 fixes the heat exchange tube 3 in the housing 1 and seals the heat exchange tube 3 to prevent the cold water and hot water from mixing at the three-way valve 2.

[0033] In another embodiment of the present application, a gap is left between the bottom of the heat exchange tube 3 and the housing 1, connecting the water inlet channel to the inside of the heat exchange tube 3.

[0034] In another embodiment of the present application, a fixing ring is provided at one end of the heat exchange tube 3, and a thread 6 is provided on the outer wall of the heat exchange tube 3. The thread 6 can increase the water path length and make the heating efficiency of the heating body higher.

[0035] In another embodiment of the present application, brackets 7 are provided at both ends of the housing 1. Installation feet are provided at the lower ends of the brackets 7, and two waist-shaped holes are opened on the installation feet for installing and adjusting the position of the circulating heating body; the cross-section of the housing 1 is a regular hexagon or a circle, and the cross-section of the outer box 9 is also a regular hexagon or a circle, but the cross-sections of the housing 1 and the outer box 9 should be kept as consistent as possible to make the thickness of the heat insulation layer 10 uniform and ensure the heat insulation effect.

[0036] In another embodiment of the present application, a plurality of installation grooves are provided on the outer periphery of the housing along the length direction; the electric heating tubes are installed in the installation grooves, and the number of installation grooves is 12. It also includes an outer box installed on the outside of the housing, and a heat insulation layer is installed between the outer box and the housing.

[0037] The working process of the circulating heating element is as follows: Place the electric heating tube 4 in the installation groove of the housing 1, press the exposed part of the electric heating tube 4 with the heat insulation layer 10, install the outer box 9, install brackets 7 at both ends, and tighten them with 6 M4 screws. The open end of the housing 1 is machined with an external thread for installing the three-way valve 2. After the three-way valve 2 is tightened, insert the heat exchange tube 3 into the housing from the water outlet of the three-way valve 2, and make the fixing ring closely adhere to the stop of the water outlet. Tighten the joint 5 to fix and seal the heat exchange tube 3. When the heating element works, the valve is automatically opened by water pressure. Cold water enters from the valve, flows along the outer wall of the heat exchange tube 3 to the bottom of the housing 1, enters the heat exchange tube 3, and finally flows out from the water outlet of the three-way valve 2; when the heating element loses power or water supply, the water pump stops and the valve automatically closes, thus playing a role in preventing dry burning and preventing the heating element from being burned out due to heating without water.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating heating body, characterized in that: It comprises a hollow shell (1), one end of which is open; a three-way valve (2) is installed on the opening; The heat exchange tube (3) is inserted into the shell (1) from the water outlet of the three-way valve (2), and a water inlet channel is formed between the heat exchange tube (3) and the inner wall of the shell (1), and the water inlet channel is connected to the water inlet end of the three-way valve (2); The housing (1) is provided with a plurality of electric heating tubes (4) along the length direction.

2. The circulating heating body according to claim 1, characterized in that: The three-way valve (2) is a T-type valve.

3. The circulating heating body according to claim 1, characterized in that: The water outlet end of the three-way valve (2) is provided with a joint (5) for fixing the heat exchange tube (3).

4. The circulating heating body according to claim 1, characterized in that: A gap is left between the bottom of the heat exchange tube (3) and the shell (1), so that the water inlet channel is connected to the inside of the heat exchange tube (3).

5. The circulating heating body according to claim 1, characterized in that: The outer wall of the heat exchange tube (3) is provided with threads (6).

6. The circulating heating body according to claim 1, characterized in that: Brackets (7) are provided at both ends of the shell (1).

7. The circulating heating body according to claim 1, characterized in that: The cross section of the shell (1) is a regular hexagon or a circle.

8. The circulating heating body according to claim 1, characterized in that: The outer periphery of the shell (1) is provided with a plurality of installation grooves arranged along the length direction; the electric heating tubes (4) are installed in the installation grooves.

9. The circulating heating body according to claim 8, characterized in that: The number of the installation slots is 12.

10. The circulating heating body according to claim 1, characterized in that: It also comprises an outer box (9) which is installed on the outside of the shell (1), and a heat insulation layer (10) is installed between the outer box (9) and the shell (1).

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