CN204681614U - Glass tube heater and electric water heater - Google Patents

Abstract

The utility model relates to the technical field of water heaters, in particular to a glass tube heater and an electric water heater. The glass tube heater includes a shell, and an electric heating element arranged in the shell, wherein the shell is a glass tube shell, the glass tube shell is a tubular structure with one end sealed and the other end open, and the electric heating element is set in on the inside or side walls of the glass tube enclosure, and transfer heat through the glass tube enclosure. At the same time, the application also provides an electric water heater using the glass tube heater. The heater shell of the present application is a glass shell, and the shell made of glass material has high corrosion resistance, and the surface of the glass shell is relatively smooth, and it is not easy to adhere to scale, thereby improving the reliability of the heater, and It will not be affected by scale and has high heat transfer efficiency.

Description

A glass tube heater and electric water heater

technical field

The utility model relates to the technical field of water heaters, in particular to a glass tube heater and an electric water heater.

Background technique

A water heater refers to a device that raises the temperature of cold water into hot water within a certain period of time through various physical principles. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic energy water heaters, and air energy water heaters.

Because the electric water heater has the advantages of convenient use, high safety performance, and cleanliness, it is favored by more and more users and has a high utilization rate. However, common electric water heaters use metal tubular electric heating elements as heating elements, and metal pipes are prone to corrosion and scale formation during contact with water, resulting in poor reliability.

When the metal pipe of the electric water heater corrodes and scales, it will have a serious impact on the heating performance and service life of the water heater. In response to this problem, scientific and technological workers have made some improvements to the structure of existing water heaters. For example, in order to prevent the heater from rusting, an anode rod is usually installed in the water heater, and a sacrificial anode is used to protect the heater. Although this structure can prevent the heater from rusting to a certain extent, it needs to add an additional structure, which increases the manufacturing cost of the water heater. Simultaneously, this kind of mode can only prevent the water heater from rusting, and cannot fundamentally structure the problem of easily generating scale on the heater.

In view of the above problems, we need a glass tube heater and an electric water heater with high corrosion resistance and rust resistance and low manufacturing cost.

Utility model content

The purpose of the utility model is to propose a glass tube heater, which has high corrosion resistance, anti-corrosion performance and low manufacturing cost.

Another object of the present utility model is to propose an electric water heater, the heater of which has high corrosion resistance, rust resistance and low manufacturing cost, and the water heater has higher safety, stability and reliability .

For this purpose, the utility model adopts the following technical solutions:

A glass tube heater, comprising a shell, and an electric heating element arranged in the shell, wherein the shell is a glass tube shell, the glass tube shell is a tubular structure with one end sealed and the other end open, the electric heater The elements are arranged inside or on the side walls of the glass tube housing and transfer heat through said glass tube housing.

As a preferred solution of the above-mentioned glass tube heater, the electric heating element is a conductive film arranged inside the glass tube shell.

As a preferred solution of the above-mentioned glass tube heater, a conductive sheet is provided at both ends of the conductive film, each conductive sheet is connected with a wire, and the conductive film is powered by the wire.

As a preferred solution of the above-mentioned glass tube heater, the electric heating element is an electric heating wire arranged inside the glass tube shell, and the glass tube shell is filled with an insulating and heat-conducting medium.

As a preferred solution of the above-mentioned glass tube heater, the insulating and heat-conducting medium is heat-conducting silica gel.

As a preferred solution of the above-mentioned glass tube heater, the outer shell of the glass tube is made of quartz glass.

An electric water heater includes the above-mentioned glass tube heater.

As a preferred solution of the above-mentioned electric water heater, the open end of the glass tube heater is fixed with a flange, and the flange is sealed and connected with the glass tube heater, and makes the inside of the glass tube heater form an airtight structure; The glass tube heater is fixed inside the barrel of the electric water heater through a flange.

As a preferred solution of the above-mentioned electric water heater, it also includes a water leakage detection device and an electronic valve arranged at the water inlet of the water heater. Both the water leakage detection device and the electronic valve are connected with the main control board of the electric water heater. When the electric water heater leaks, the main control board controls the electronic valve to close the water inlet.

The beneficial effects of the utility model are: the shell of the heater is a glass shell, and the shell made of glass material has high corrosion resistance, and the surface of the glass shell is relatively smooth, and it is not easy to attach scale, thereby improving the heating efficiency. The reliability of the device, and it will not be affected by scale, and has high heat transfer efficiency.

Description of drawings

Fig. 1 is a schematic structural view of a water heater using a glass tube heater provided in Embodiment 1 of the present utility model;

Fig. 2 is a partial enlarged view of "I" in Fig. 1;

Fig. 3 is a schematic structural diagram of a glass tube heater provided in Embodiment 2 of the present invention.

1: glass tube heater; 2: flange; 3: barrel;

11: glass tube shell; 12: conductive film; 13: conductive sheet; 14: wire;

21: glass tube shell; 22: electric heating wire; 23: insulating and heat-conducting medium.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Implementation Mode 1

As shown in FIG. 1 and FIG. 2 , this embodiment provides a glass tube heater, which includes a casing and an electric heating element arranged in the casing. Specifically, the shell is a glass tube shell 11, which is a tubular structure with one end sealed and the other end open. The electric heating element is arranged inside or on the side wall of the glass tube shell 11 and transmitted heat.

The heater shell of the present application is a glass shell, and the shell made of glass material has high corrosion resistance, and the surface of the glass shell is relatively smooth, and it is not easy to adhere to scale, thereby improving the reliability of the heater, and It will not be affected by scale and has high heat transfer efficiency.

Specifically, the electric heating element provided in this embodiment is a conductive film 12 arranged inside the glass tube shell 11 . The conductive film 12 is provided on the inside of the glass tube shell 11 by means of coating and plating.

In this embodiment, the method of supplying power to the conductive film 12 is as follows: a conductive sheet 13 is respectively provided at both ends of the conductive film 12 , each conductive sheet 13 is connected with a wire 14 , and the conductive film 12 is powered through the wire 14 .

Preferably, the glass tube shell 11 is made of quartz glass.

Referring to Fig. 1, in this embodiment, the present application also provides an electric water heater adopting the above-mentioned glass tube heater, the open end of the glass tube heater 1 is fixed with a flange 2, and the flange 2 is heated with the glass tube The device 1 is sealed and connected, and the flange 2 seals the inner cavity of the glass tube heater 1 to form a closed structure. The glass tube heater 1 is fixed inside the barrel body 3 of the electric water heater through the flange plate 2 .

More preferably, in order to prevent the potential safety hazard of water leakage caused by broken glass, the electric water heater also includes a water leakage detection device, and an electronic valve arranged at the water inlet of the water heater (the electronic valve is in the state of power failure and detects water leakage. It is in the closed state, and it is in the open state only when the water heater is working normally.), the water leakage detection device and the electronic valve are connected with the main control board of the electric water heater, when the water leakage detection device detects that the electric water heater leaks, the main control board controls the electronic valve Close the water inlet.

Implementation mode two

As shown in Figure 3, in this embodiment, the present application also provides another structural form of the glass tube heater, specifically, the electric heating element of the heater is an electric heating element arranged inside the glass tube shell 21 wire 22, and the glass tube shell 21 is filled with an insulating and heat-conducting medium 23. Preferably, the insulating and heat-conducting medium 23 is heat-conducting silica gel.

An electric heating wire 22 is arranged in the glass tube shell 21, and heat is transferred through the insulating heat-conducting medium 23 and the glass shell 21. On the premise of ensuring the heating efficiency, the purpose of anti-corrosion and anti-fouling can also be achieved.

It should be noted that, in this embodiment, except that the structure of the electric heating element of the glass tube heater is different from Embodiment 1, other structures are the same as Embodiment 1.

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (9)

1. a Glass tube heater, comprise shell, and the electrical heating elements arranged in the enclosure, it is characterized in that, described shell is glass envelope, and this glass envelope is one end sealing, and the other end is the tubular structure of opening, on the inside that described electrical heating elements is arranged on glass envelope or sidewall, and by described glass envelope transferring heat.

2. Glass tube heater according to claim 1, is characterized in that, described electrical heating elements is the conducting film (12) be arranged on inside glass envelope.

3. Glass tube heater according to claim 2, it is characterized in that, the two ends of described conducting film (12) are respectively arranged with a conducting strip (13), each conducting strip (13) is all connected with a wire (14), is conducting film (12) power supply by wire (14).

4. Glass tube heater according to claim 1, is characterized in that, described electrical heating elements is the electrical heating wire (22) being arranged on glass envelope inside, and is filled with insulated heat-conducting medium (23) in described glass envelope.

5. Glass tube heater according to claim 4, is characterized in that, described insulated heat-conducting medium (23) is heat conductive silica gel.

6. Glass tube heater according to claim 1, is characterized in that, described glass envelope is made up of quartz glass.

7. an electric heater, is characterized in that, comprises the Glass tube heater (1) as described in claim 1-6 any one.

8. electric heater according to claim 7, it is characterized in that, the openend of described Glass tube heater (1) is fixed with ring flange (2), this ring flange (2) and Glass tube heater (1) are tightly connected, and make the inside of Glass tube heater (1) form airtight structure; It is inner that described Glass tube heater (1) is fixed on electric heater staving (3) by ring flange (2).

9. electric heater according to claim 7, it is characterized in that, also comprise leakage inspector, and be arranged on the electronic valve at water feeding of heater mouth place, described leakage inspector and electronic valve are all connected with the master control borad of electric heater, when leakage inspector detects that electric heater occurs to leak, master control borad controls electronic valve and closes water inlet.