CN213334918U

CN213334918U - Liquid heater

Info

Publication number: CN213334918U
Application number: CN202022457256.9U
Authority: CN
Inventors: 佘群; 卢德纯
Original assignee: Guangdong Shunde Dingchen Technology Co ltd; Guangdong Jibao Electrical Appliance Technology Co ltd
Current assignee: Guangdong Shunde Dingchen Technology Co ltd; Guangdong Jibao Electrical Appliance Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-01
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to a liquid heater, including the heating main part, its inside heating channel that is used for the liquid circulation that forms, the heating main part outside is equipped with the guard shield, forms the intermediate layer chamber between heating main part and the guard shield, and the intermediate layer intracavity is around being equipped with the heating wire, and the space part packing in intermediate layer chamber has heat conduction insulating layer. The utility model is directly provided with the heating wire and the heat conducting insulating layer outside the heating main body with the heating channel, when the heating wire works, the heat generated by the heating wire heats the liquid circulating in the heating channel through the heat conducting insulating layer and the heating main body; the medium that the heating wire passed when heating to liquid is littleer to the medium all can adopt metal to make, coefficient of heat conductivity is higher, makes its thermal efficiency higher, and the liquid that heats can be used for directly drinking in addition, is applicable to various electric heat formula hot water equipment, drinking water equipment.

Description

Liquid heater

Technical Field

The utility model relates to a liquid heating field specifically is a liquid heater.

Background

The heating pipe is formed by filling an electric heating wire into a seamless metal pipe (a carbon steel pipe, a titanium pipe, a stainless steel pipe and a copper pipe), filling magnesium oxide powder with good heat conductivity and insulativity into a gap part, then shrinking the pipe, and processing the pipe into various shapes required by users. It has simple structure, high heat efficiency, high mechanical strength and excellent adaptability to harsh environment.

The heating pipe can be directly immersed into liquid to heat the liquid (such as an electric water heater), and the mode is direct heating; the heating pipe can also be made into a metal heating plate to heat a liquid container (such as an electric kettle) in a mode of indirectly heating through a medium; when the heating pipe directly generates heat, the thermal efficiency is higher, but the heated liquid can not be used for direct drinking, and when the heating pipe indirectly generates heat through a medium, the thermal efficiency is lower, but the heated liquid can be used for direct drinking.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a liquid heater, which has high thermal efficiency and can be used for directly drinking heated liquid.

The purpose of the utility model is realized like this:

the utility model provides a liquid heater, includes the heating main part, its inside heating channel that is used for the liquid circulation that forms, the heating main part outside is equipped with the guard shield, forms the intermediate layer chamber between heating main part and the guard shield, and the intermediate layer intracavity is around being equipped with the heating wire, and the space part in intermediate layer chamber is filled there is the heat conduction insulating layer.

The heating main body is in a long tubular shape, the protective cover is in a long tubular shape, the tube body of the heating main body is a heat conducting surface used for conducting heat to the heating channel, the radial size of the protective cover is larger than that of the heating main body, and the protective cover is sleeved on the periphery of the heating main body.

The heating body is plate-shaped, at least one surface of the heating body is provided with a heat conducting surface used for conducting heat to the heating channel, and the shield is covered on the heat conducting surface.

The end part of the electric heating wire penetrates out of the interlayer cavity and forms an electric connection joint.

The electric heating wire, the outer wall of the heating main body and the inner wall of the protective cover form a gap part of the interlayer cavity.

The heat conduction insulating layer is made of magnesium oxide.

And liquid connecting interfaces are formed at two ends of the heating main body.

And a heat shield is arranged outside the protective cover.

The utility model has the advantages as follows:

the heating channel is arranged on the heating body, the heating body is provided with a heating channel, and the heating channel is arranged on the heating body; the medium that the heating wire passed when heating to liquid is littleer to the medium all can adopt metal to make, coefficient of heat conductivity is higher, makes its thermal efficiency higher, and the liquid that heats can be used for directly drinking in addition, is applicable to various electric heat formula hot water equipment, drinking water equipment.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

First embodiment

Referring to fig. 1, the liquid heater includes a heating body 1, a heating channel 10 for liquid circulation is formed in the heating body 1, a shield 2 is disposed outside the heating body 1, an interlayer cavity is formed between the heating body 1 and the shield 2, an electric heating wire 3 is wound in the interlayer cavity, and a heat conducting insulating layer 4 is filled in a gap portion of the interlayer cavity. The heating body 1 with the heating channel 10 is directly provided with the heating wire 3 and the heat conducting insulation layer 4, when the heating wire 3 works, the heat generated by the heating wire heats the liquid circulating in the heating channel 10 through the heat conducting insulation layer 4 and the heating body 1; the medium (the medium is only the heat conducting insulating layer 4 and the heating main body 1) which is penetrated by the electric heating wire 3 when heating the liquid is smaller, the medium can be made of metal, the heat conductivity coefficient is higher, the heat efficiency of the liquid heater is higher, and the heated liquid can be directly drunk and is suitable for various electric heating type hot water equipment and drinking water equipment. It has the advantages of simple structure, mature process, low manufacturing cost and the like.

Further, heating main part 1 is long tube form, guard shield 2 is long tube form, and both all adopt the metal to make, and heating main part 1 especially can adopt the stainless steel to make (reach food level, can the direct heating supply the liquid of drinking), and the pipe shaft of heating main part 1 is for being used for the heat conducting surface to heating channel 10 heat transfer, and the radial dimension of guard shield 2 is greater than the radial dimension of heating main part 1, and the guard shield 2 cover is established in the periphery of heating main part 1 to form the intermediate layer chamber of enough intermediate layer thickness.

Further, the end of the heating wire 3 penetrates the interlayer cavity and forms an electrical connection joint 31. The electrical connection terminals 31 may be disposed on the same side or opposite sides of the heating body 1, and the position is not limited thereto, and the ends of the shield 2 may be closed by a sealant 30 or the like, as will be understood by those skilled in the art.

Further, the heating wire 3 forms a gap portion of the interlayer cavity with the outer wall of the heating body 1 and the inner wall of the shield 2, and the gap portion is filled with the heat conducting and insulating layer 4, which has a heat conducting and insulating effect.

Further, the heat conducting insulation layer 4 is made of magnesium oxide.

Further, liquid connection interfaces are formed at two ends of the heating body 1 and are used for connecting hot water equipment or drinking water equipment and the like.

Furthermore, the outside of the protective cover 2 is provided with a heat insulation cover (not shown in the figure), so that the heat insulation effect is achieved, the scalding of hands is avoided, and the heat efficiency can be further improved.

Second embodiment

The main difference between the present liquid heater and the first embodiment is that the heating body 1 has a plate shape, at least one side of which is provided with a heat conduction surface (made of metal, preferably stainless steel) for transferring heat to the heating channel 10, and the shield 2 covers the heat conduction surface, thereby forming a sandwich cavity with a sufficient sandwich thickness.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a liquid heater, includes heating main part (1), its inside heating channel (10) that is used for the liquid circulation that forms, its characterized in that, heating main part (1) outside is equipped with guard shield (2), forms the intermediate layer chamber between heating main part (1) and guard shield (2), winds in the intermediate layer chamber and is equipped with heating wire (3), and the space part in intermediate layer chamber is filled with heat conduction insulating layer (4).

2. The liquid heater of claim 1, wherein: the heating body (1) is long-tube-shaped, the protective cover (2) is long-tube-shaped, the tube body of the heating body (1) is a heat conducting surface used for conducting heat to the heating channel (10), the radial size of the protective cover (2) is larger than that of the heating body (1), and the protective cover (2) is sleeved on the periphery of the heating body (1).

3. The liquid heater of claim 1, wherein: the heating body (1) is plate-shaped, at least one surface of the heating body is provided with a heat conducting surface used for conducting heat to the heating channel (10), and the shield (2) is covered on the heat conducting surface.

4. The liquid heater of claim 1, wherein: the end part of the electric heating wire (3) penetrates out of the interlayer cavity to form an electric connection joint (31).

5. The liquid heater of claim 1, wherein: the electric heating wire (3), the outer wall of the heating main body (1) and the inner wall of the shield (2) form a gap part of the interlayer cavity.

6. The liquid heater of claim 1, wherein: the heat conduction insulating layer (4) is made of magnesium oxide.

7. The liquid heater of claim 1, wherein: two ends of the heating main body (1) form a liquid connecting interface.

8. The liquid heater of any one of claims 1-7, wherein: and a heat shield is arranged outside the shield (2).