JPS5934931B2 - Manufacturing method for heat-radiating and absorbing parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a heat dissipating and absorbing member suitable for heating and cooling applications.

According to the prestressed concrete method, piles, pavement,
It has high strength as sleepers, water tanks, tanks, and pressure vessels, and can be manufactured thinner than ordinary concrete, but the present invention utilizes this prestressed concrete construction method,
This is a method of manufacturing a heat dissipating and absorbing member that can be easily constructed over a wide range of areas for air conditioning and heating by arranging heat exchange pipes in concrete.

That is, in the present invention, a heat exchange pipe is arranged in a bent manner, a metal wire is inserted into a metal guide fixed to the heat exchange pipe in several rows from both sides, and a tensile pressure is applied to the metal wire. 6. A manufacturing method for heat dissipating and absorbing members that is characterized by shaping concrete while applying heat. By passing heating wires, hot water, high temperature gas, etc. through heat exchange pipes, it becomes a surface heating element.
Conversely, by passing a refrigerant through it, a heat-radiating and absorbing member that can also be used as a heat-absorbing panel is obtained.

The present invention will be described in detail based on an embodiment shown in the drawings.

This shows a method for manufacturing a rectangular heat dissipation/absorption panel.A heat exchange pipe 2 is placed in a rectangular mold 1 for pouring and solidifying concrete in a meandering manner so as to cover the entire surface. Both ends of the pipe 2 are made to protrude outside the mold 1.

The heat exchange pipe 2 serves as a heat conduction portion and is made of iron, stainless steel, copper, aluminum, or the like.

Metal guides 4 having holes through which metal wires 3 are inserted and held are fixed to the heat exchange pipe 2 by welding in several rows from both sides of the rectangular mold 1 in the longitudinal direction.

The metal wire 3 inserted through the metal guide 4 is used in the prestressed concrete construction method and has a high tensile strength, and is usually a hard PC wire.

According to JIS, the diameter is 3 to 9 mm, but these twisted wires are also used.

The metal wire 3 inserted through the metal guide 4 is pulled from both sides of the mold 1, and when concrete is poured into the mold 1 and shaped while applying a tensile pressure of 100 to 40 ky/i, the heat exchange pipe 2 is covered with the concrete 5. A rectangular heat dissipation/absorption panel is obtained.

The shape of the heat dissipating and absorbing member is not limited to a flat plate shape, and various shapes can be obtained depending on the way the heat exchange pipe is bent.

For example, if a formwork is formed in which the flat surface of the rectangular mold is formed into a corrugated shape, and a heat exchange pipe is bent and arranged in this formwork, a heat dissipation/absorption panel having a rectangular waveform surface can be obtained.

In addition, a heat exchange pipe is arranged in a spiral shape in a cylindrical formwork, and a metal wire inserted through a metal guide is pulled from both sides of the formwork.
By pouring concrete into a formwork and shaping it while applying tensile pressure, a tubular heat-radiating/absorbing member with a heat exchange pipe covered with concrete is obtained.

At this time, if a material with good thermal conductivity is mixed into the concrete, such as carbon, iron powder, iron chips, titanium-containing iron powder, or titanium-containing sea sand, etc., or the surface is coated, average heat conduction can be achieved. This is preferable because it allows

In prestressed concrete, the metal wire completes its mission by providing strength compensation through shrinkage to the shaped concrete, but in the present invention, the metal wire conducts heat from the heat exchange pipe through the metal guide and provides secondary heat transfer. This introduces the planar effect of heat conduction.

Even if the heat exchange pipe is as thin as possible, it can be made of concrete and has a rust prevention effect, and depending on the material, the organic heat medium can have a
It can be used at 0°C or up to 600-700°C with an inorganic heat medium.

In the case of electric heat generation, it is possible to supply a large amount of heat using a sheathed (MgO insulated) heat exchange pipe.

This is effective in desalination of seawater when it is in the form of a tank, and it makes a big difference in terms of corrosion compared to installing a metal heater or the like in a concrete structure.

[Brief explanation of drawings]

The drawings are explanatory diagrams showing one embodiment of the present invention, in which Fig. 1 is a plan view of a rectangular shape in which heat exchange pipes are bent and arranged, Fig. 2 is a longitudinal cross-sectional side view of the obtained rectangular heat dissipation/absorption panel, FIG. 3 is a sectional view showing the connection relationship between the heat exchange pipe, the metal guide, and the metal wire.

Claims (1)

[Claims] 1 Heat exchange pipes are arranged in a bent manner, metal wires are inserted into metal guides fixed to the heat exchange pipes in several rows from both sides in a straight line, and concrete is formed while applying tensile pressure to the metal wires. A method of manufacturing a heat dissipating and absorbing member characterized by: