Disc type integral heat pipe for heat dissipation of electromagnetic iron remover

Abstract

A disc-type integral heat pipe for heat dissipation of an electromagnetic iron remover, comprising a circular flat plate, characterized in that: on the circular flat plate, there are evenly distributed evaporation channels parallel to each other, and the evaporation channels are located on the circular flat plate Between the upper and lower surfaces and through to the circumferential surface of the circular flat plate, its axis is parallel to the upper and lower surfaces of the circular flat plate; a through hole is arranged in the center of the circular flat plate, and the axis of the through hole is perpendicular to the The upper and lower surfaces of the circular flat plate; a hollow ring is provided on the circumference of the through hole, and the evaporation channel passing through the circumference of the through hole communicates with the inner cavity of the hollow ring; on the outer circumference of the circular flat plate There is a steam distribution ring on the surface, and the steam distribution ring is a hollow tube, and the evaporation channel port on the outer peripheral surface of the circular flat plate communicates with the inner cavity of the steam distribution ring; the steam distribution ring is evenly distributed with Straight finned tubes communicating with the inner cavity of the steam distribution ring. The invention has simple and reliable structure, strong heat transfer capacity and high cost performance. Compared with the radiator composed of independent multi-heat pipes, it has stronger heat dissipation capacity, better temperature uniformity effect, higher processing and installation efficiency, and lower Generate cost, suitable for industrial application.

Description

technical field [0001] The invention discloses a disc-type integral heat pipe for heat dissipation of an electromagnetic iron remover, which belongs to the technical field of heat transfer enhancement. [0002] technical background [0003] Electromagnetic iron remover is a device that uses magnetic attraction to remove ferromagnetic impurities from material conveyor belts. The equipment will have the following functions in the production process: one is to protect the conveyor belt from being damaged by ferromagnetic impurities; the other is to ensure the safe and stable operation of subsequent important equipment, such as crushers, grinders, boilers, etc.; The quality of related products, such as ceramic products, because ferromagnetic impurities in production will seriously affect the color of the ceramic surface; the fourth is to improve the quality of port material transportation to meet customer requirements. Based on the important functions of electromagnetic iron rem...

AI Technical Summary

Problems solved by technology

The analysis found that the patent has the following deficiencies: First, many heat pipes are sandwiched between two aluminum plates in parallel at intervals. Due to the difference in the overlapping length of the heat pipe and the coil and the heat transfer performance of the heat pipe, and the radial distribution of the heat pipes between the aluminum plates is discontinuous, resulting in There is a big difference in the heat transfer capacity of the hot plate, which causes uneven temperature of the coil and local high temperature; second, there is thermal resistance of the aluminum plate and the contact thermal resistance between the heat pipe and the aluminum plate; the third is that the aluminum plate needs to process many arc grooves and screw holes , high processing and installation costs; Fourth, the nested installation of the heat dissipation finned tube and the condensation section, there is contact thermal resistance, and the installation is difficult

The analysis found that this patent has the following deficiencies: first, the processing and installation of the heat pipe with concave-convex structure is relatively complicated; second, the heat pipes are embedded, that is, the contact thermal resistance and the metal thermal resistance are added; the third is the first deficiency of the aforementioned patent 02258232.0. ; Four is more metal consumption

The heat pipe heat dissipation technology proposed in Chinese patent 200920232862.1 is characterized in that multiple heat pipes are inserted horizontally into the coil at a certain interval, the coil and the heat pipe can only be in point contact, the contact area is too small, and the thermal resistance at the interval between the heat pipes is very large, and the heat transfer capacity is relatively low. Poor, and there is also the problem of uneven coil temperature

The heat pipe heat dissipation technology proposed in Chinese patent 88105470.4 is characterized in that multiple heat pipes are vertically inserted into the coil, and the gaps around the heat pipes are filled with thermally conductive fillers. Resulting in poor overall heat transfer performance; second, there is also the first deficiency of patent 02258232.0; third, the heat pipe protrudes from the upper part of the iron remover, which is not conducive to natural heat dissipation

Its disadvantages are as follows: first, it cannot solve the sealing problem of the wires leading out of the coil, thereby destroying the vacuum degree of the heat pipe; The middle partition of steel is not easy to weld

[0009] In addition, the heat pipes of patents 02258232.0, 200710133466.9, and 200920232862.1 are of the horizontal insertion type, which is convenient for the cold end to dissipate heat by natural convection. This type has a constraint that the heat pipe can only be inserted in one coordinate direction of the coil horizontal plane of the iron remover, so that the electromagnetic iron remover must be square, and the cold ends of the heat pipe can only be arranged on both sides of the iron remover, which limits the number of cold ends for heat dissipation. Good for increasing heat dissipation

The cold ends of patents 88105470.4 and 200710134552.1 protrude from the top of the iron remover. The restrictions on the shape of the iron remover and the number of cold ends are relatively weak, but the disadvantage is that the cold end protruding from the top cannot be cooled naturally, which brings the need The question of motivation

In the actual use of existing heat pipe radiators, there are also common problems such as poor heat dissipation, uneven temperature, and excessive temperature.

From the perspective of heat transfer, there are two major problems in today's technology: one is multi-tube, and now basically use multiple heat pipes to dissipate heat. Since each heat pipe is independent, its performance and installation location are different, which can easily cause the temperature Uneven; Second, there are many additional thermal resistances, such as metal thermal resistance, contact thermal resistance, filler thermal resistance, etc.

Images