SU1607671A1 - Inductive heater of fluid medium - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to intensify convective heat exchange and increase reliability. The induction heater of a fluid with a ferromagnetic case in the form of an alternating-current coaxial coaxial type 1 CRT is provided with radial baffles in the meddue gap with shchindry. Their specific placement and length, not reaching the ends of the cylinders, ensure the zigzag movement of the medium, the turbulent nature of its movement, increasing the convective heat exchange. 1 Cp. - f-ly. 2 igg.

Description

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The invention relates to equipment for heating liquids and can be used, for example, in the oil and chemical industry.

The aim of the invention is to intensify convective heat exchange and increase reliability.

Figure 1 shows a General view of the device, a section along the axis; figure 2 is the same cross section.

The induction heater includes a coaxially mounted cylinder 1, swept through the insulating layer 2 by a winding 3, on which a alternating voltage is applied, a hollow cylinder .4 placed inside it, and nozzles 5 of the inlet and 6 outlet of the medium from the annular gap between them, the annular gap is divided partitions 7 into sectors B, which provide

sequential flow of fluid, as well as a magnetoprode 9.

Induction heater works in the following ways.

The heated medium is pumped into the heater through pipe 5 of sector 8, bounded by the walls of cylinders 1, 4 and longitudinal partitions 7 and moves in the direction of the opposite end, then enters the adjacent ring sector and moves E in the opposite direction and further from the end to the end, exit from the last sector through the pipe 6.

Due to the partitions, a high flow rate of the medium is achieved, its intermixing with a change in the direction of motion creates a turbulent regime and increases the surface

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heat exchange due to the area of partitions. .

The ratio of the lengths of the corgus partitions was chosen experimentally.

The CMM is taken into account in order to avoid a significant increase in hydraulic and mechanical resistance in mVtah flow from one ring sector to another,

The winding 3, separated from the case by thermal and electrical insulation 2, is alternately more stressed. As a result of electromagnetic induction and in the presence of an internal magnetic resonance tube, the cylinders, as well as partitions and walls of the pipes, accumulate heat and heat the medium passing through it. sectors,.

The placement of the magnetic circuit inside the apparatus corresponds to a more equal heating of the inner and outer walls: the body

The internal arrangement of the inlet pipes to the liquid outlet contributes to the most satisfactory heating conditions by maximizing the use of the outer wall area under the winding and also 5, when applying alternating voltage to the winding wall of the pile pack, with their similar & position are tagshocking.

The proposed design provides a high heat transfer rate, as well as adequate work and a long time;

high velocity of the medium can be obtained with a sufficient width of the annular gap and the influence of deposits | the walls will not show up as much as r with a small gap width.

Claims (1)

1. An induction fluid heater, containing a coil of ferromagnetic material made of two coaxial cylinders, covered by an alternating current winding, made of two coaxial cylinders, an annular sight between which is connected to the inlet and outlet nozzles of the medium being heated, and the magnetic core, characterized in that in order to intensify the convective heat transfer and the reliability of the heater. This gap is divided into sectors by longitudinal radial partitions: one of which is located between the inlet and outlet nozzles and adjoins the sides of the housing, while the others alternately adjoin one of the ends, forming an opening for a zigzag surface flow of the medium, and soy-- tavl 0.5 - 0.9 body length. 2, Heater n, 1j, which means that the magnet conduit and the inlet and outlet connections cp &p; iA 33 are located inside the corus,. Fig 1 FIG Z