CN207262519U - Two-pass highly-efficient rate electromagnetic induction heater - Google Patents

Abstract

The utility model is a double-flow high-efficiency electromagnetic induction heater, which solves the problem of low thermal efficiency of the existing electromagnetic induction heater. The utility model comprises an insulating tube and a metal tube heating body, the top and bottom of the insulating tube are closed, and an electromagnetic induction coil is wound on the outer wall of the insulating tube; the metal tube heating body is set in the insulating tube, and the bottom nozzle of the metal tube heating body is sealed and fixed On the bottom of the insulating tube, there is a gap space between the top nozzle of the metal tube heating body and the top of the insulating tube, and between the outer wall of the metal tube heating body and the inner wall of the insulating tube; There is a water inlet and a water outlet, the water inlet communicates with the gap space, and the water outlet communicates with the inner space of the metal tube heating body. The heater of the utility model has the advantages of scientific design, simple structure, low cost and convenient use, and is provided with a double-flow heat absorption process, which greatly improves the heat transfer efficiency.

Description

Dual-process high-efficiency electromagnetic induction heater

technical field

The utility model relates to a coal-to-electricity heating device, in particular to a double-flow high-efficiency electromagnetic induction heater.

Background technique

At present, traditional heating basically uses coal-fired boilers, but with the increasingly serious coal-fired pollution and stricter environmental protection requirements, the voice of coal-to-electricity is getting louder and louder, followed by the Various coal-to-electricity devices, among them, a coal-to-electricity device with an electromagnetic induction heater has a better effect and has many varieties, but one of its biggest shortcomings is its low thermal efficiency.

Contents of the invention

The purpose of the utility model is to solve the problem of low thermal efficiency of the existing electromagnetic induction heater, and provide a dual-flow high-efficiency electromagnetic induction heater.

The utility model is achieved through the following technical solutions:

A double-flow high-efficiency electromagnetic induction heater, including an insulating tube and a metal tube heating body, the top and bottom of the insulating tube are closed, and an electromagnetic induction coil is wound on the outer wall of the insulating tube along its axial direction; the metal tube heating body is set on the insulating tube In the tube, the two are coaxially arranged; the bottom nozzle of the metal tube heating body is sealed and fixed on the bottom of the insulating tube, the top nozzle of the metal tube heating body and the top of the insulating tube and the outer wall of the metal tube heating body and the There is a gap between the inner walls of the insulating tube; the bottom of the insulating tube is provided with a water inlet and a water outlet, wherein the water inlet communicates with the gap between the metal tube heating body and the insulating tube, and the water outlet communicates with the metal tube heating The inner tube space of the body communicates.

The working process of the utility model heater is as follows: the electromagnetic induction coil heats the metal tube heating body, the low-temperature water enters from the water inlet, first enters the gap space between the outer wall of the metal tube heating body and the inner wall of the insulating tube, and is heated by the metal tube The outer wall absorbs heat, and then enters the inner space of the metal tube heating body through the gap space between the top nozzle of the metal tube heating body and the top of the insulating tube, and heats the inner wall through the metal tube for secondary absorption of heat, and finally from The water outlet flows out, thereby realizing the double-flow heat absorption process and greatly improving the thermal efficiency.

As a preferred technical solution, the electromagnetic induction coil is connected with the frequency conversion control unit. The frequency conversion control unit is also called the electromagnetic heating controller. The frequency conversion control unit changes the 50HZ frequency alternating current to 20KHZ--40KHZ, generates a high-frequency alternating magnetic field through the electromagnetic induction coil, and the metal tube heating body cuts the alternating magnetic field to generate an alternating current or eddy current. The spiral flow makes the iron molecules of the metal tube heating body move irregularly at high speed, and the molecules collide with each other to generate heat energy, and the heat generated is used to heat the circulating water to realize heating.

The heater of the utility model has the advantages of scientific design, simple structure, low cost and convenient use, and is provided with a double-flow heat absorption process, which greatly improves the heat transfer efficiency. The product of the utility model has been developed and produced, and has been well received by users since it was put on the market.

Description of drawings

The accompanying drawings here are used to provide a further description of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation of the actual product of the utility model.

In the figure: 1-insulating pipe, 2-metal pipe heating body, 3-electromagnetic induction coil, 4-water inlet, 5-water outlet.

Detailed ways

In order to enable those skilled in the art to better understand the utility model, the utility model will be further clearly and completely described below in conjunction with reference to the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

As shown in Figure 1 or Figure 2, a double-flow high-efficiency electromagnetic induction heater includes an insulating tube 1 and a metal tube heating body 2. The top and bottom of the insulating tube 1 are closed, and the outer wall of the insulating tube 1 is The electromagnetic induction coil 3 is wound; the metal tube heating body 2 is set in the insulating tube 1, and the two are coaxially arranged; the bottom nozzle of the metal tube heating body 2 is sealed and fixed on the bottom of the insulating tube 1, and the metal tube heating body 2 There is a gap space between the top nozzle of the tube and the top of the insulating tube 1 and between the outer wall of the metal tube heating body 2 and the inner wall of the insulating tube 1; the bottom of the insulating tube 1 is provided with a water inlet 4 and a water outlet 5 , wherein the water inlet 4 communicates with the gap space between the metal tube heating body 2 and the insulating tube 1 , and the water outlet 5 communicates with the inner space of the metal tube heating body 2 .

As a preferred technical solution, the electromagnetic induction coil 3 is connected to the frequency conversion control unit 6 .

The scope of protection claimed by the utility model is not limited to the above specific embodiments. For those skilled in the art, the utility model can have various deformations and changes. Equivalent replacements should all be included within the protection scope of the present utility model.

Claims (2)

1. A double-flow high-efficiency electromagnetic induction heater, including an insulating tube (1) and a metal tube heating body (2), the top and bottom of the insulating tube (1) are closed, and the outer wall of the insulating tube (1) along its axis An electromagnetic induction coil (3) is wound in the direction, and it is characterized in that: the metal tube heating body (2) is set in the insulating tube (1), and the two are coaxially arranged; the bottom nozzle of the metal tube heating body (2) is sealed and fixed on the On the bottom of the insulating tube (1), between the top nozzle of the metal tube heating body (2) and the tube top of the insulating tube (1), and between the outer wall of the metal tube heating body (2) and the inner wall of the insulating tube (1) There is a space between them; the bottom of the insulating tube (1) is provided with a water inlet (4) and a water outlet (5), wherein, the water inlet (4) is connected with the metal tube heating body (2) and the insulating tube (1) ) are communicated with the space in the gap, and the water outlet (5) is communicated with the space inside the tube of the metal tube heating body (2). 2. The double-flow high-efficiency electromagnetic induction heater according to claim 1, characterized in that: the electromagnetic induction coil (3) is connected to the frequency conversion control unit (6).