JPH03217795A - Heat pipe type heat exchanger - Google Patents

Abstract

PURPOSE:To obtain a heat pipe type heat exchanger without generating dewing even when the same is attached to a sealed box body or a sealed chamber by providing a heat insulating layer near a partitioning plate to intercept a heat absorbing part from a heat dissipating part. CONSTITUTION:A plurality of sheets of plate fins 6 are fitted to a plurality of heat pipes 5 through a partitioning plate 7 and push plates 8 are attached to the upper and lower part of the plate fins while a part near the intermediate part of the heat pipe is filled with heat insulating material 19 to provide a heat insulating layer 10. Solid type heat insulating material, such as a silica board, a glass wool board and the like capable of being applied with machining works, is used conveniently by cutting it into a predetermined configuration. When a using temperature is high, the heat insulating material, such as rock wool, fiber ceramics and the like capable of being used at a high temperature, is employed. The heat pipe type heat exchanger, equipped with the heat insulating layer, can be prevented from generating dewing on the partitioning plate even when the same is attached to a sealed box body or a sealed chamber and a difference between an indoor temperature and an atmospheric temperature is large.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention radiates heat in a sealed casing or a sealed room in which precision equipment, electronic equipment, control panels, power distribution boards, measurement panels, etc. are installed to the outside, and This relates to a heat pipe type heat exchanger used to maintain a constant temperature inside a body or a closed room.

[Conventional technology and its issues] Precision equipment, electrical equipment, control panels, power distribution boards, measurement panels, etc. are housed in sealed cases or sealed rooms to avoid dust, oil mist, moisture, etc. Heat dissipation means are provided to maintain the temperature, one of which is a heat vibrator heat exchanger.

For example, as shown in FIG. 2, this heat pipe type heat exchanger transfers heat generated from a heating element (2) such as a power distribution board housed in a sealed case (1) to the heat pipe type heat exchanger (3).
) is used as a device that transfers heat and cools it with outside air to maintain a constant temperature inside the sealed enclosure.

The above-mentioned heat pipe type heat exchanger is conventionally known as shown in FIG. That is, a large number of plate fins (6) are inserted into a plurality of heat pipes (5) via partition plates (7), and presser plates (8) are attached above and below the plate fins. Then, the lower part of the partition plate is installed inside the case, and the upper part of the partition plate is attached to the outside air side, and as mentioned above, the high temperature side inside the case becomes a heat absorption part, and the low temperature side on the outside air side becomes a heat radiation part, so that the heat inside the case is is cooled by radiating heat to the outside air.

By the way, the sealed casing or sealed room in which the heat pipe type heat exchanger as mentioned above is installed is intended to avoid dust and heat from the outside air, so it is naturally designed to be isolated from the outside air, so for example, it has a heat insulating effect. There are many structures that look like holding cases or sealed chambers with concrete walls.

If the heat pipe type heat exchanger described above is installed in such a sealed case or sealed room, if the temperature difference between the inside and outside becomes large during use, condensation will form on the partition plate of the heat exchanger, adversely affecting the internal equipment. It turns out that there is a risk.

[Problem H to be solved by the invention] The present invention was made as a result of studies on the above-mentioned problems, and has developed a heat pipe type heat exchanger that does not generate dew condensation even when installed in a closed enclosure or a closed room. It is.

[Means and effects for solving the problem] The present invention includes a plurality of plate fins inserted into a plurality of heat pipes via a partition plate, one of the partition plates serving as a heat absorbing portion, and the other serving as a heat radiating portion. This heat pipe type heat exchanger is characterized in that a heat-insulating layer is provided near the partition plate to isolate the heat-absorbing part and the heat-radiating part.

That is, as shown in FIG. 1, for example, the present invention involves inserting a plurality of plate fins (6) into a plurality of heat pipes (5) via a partition plate (7), and attaching presser plates above and below the plate fins. (8) is attached, and a heat insulating material (9) is filled near the middle part of the heat pipe to provide a heat insulating layer (10).

As the above-mentioned heat insulating material, solid materials such as silica board and glass wool board (trade name) that can be machined are convenient and can be cut into a predetermined shape for use. In addition, if the heat pipe type heat exchanger is used at a high temperature, use one that can be used at high temperatures, such as a cooling wool or fine ceramic. Materials that may be dispersed in the gas, such as glass wool, should be covered with aluminum foil, etc.

When the heat pipe heat exchanger equipped with the above-mentioned heat insulating layer is installed in a closed case or a closed room, even when there is a large temperature difference between the indoor and outdoor air, the heat pipe type heat exchanger equipped with the above-mentioned heat insulating layer is provided with a heat insulating layer near the partition plate. This prevents condensation from forming on the partition plate.

Note that the heat pipe type heat exchanger of the present invention can also be applied to one in which a part of the outside is covered with a housing.

[Example] An embodiment of the present invention will be described below.

The heat pipe has an outer diameter of 15.88anφ and a length of 490an.
By using 64 pieces of heat pipe, plate fins were press-fitted into them, and a heat insulating layer made of glass wool board with a thickness of 65 mm was installed between the high temperature side 315 + am and the low temperature side 110 + m++, as shown in Fig. 1. An exchanger was created.

When this heat exchanger was installed and used in a closed case as shown in FIG. 2, no dew condensation occurred near the partition plate.

〔effect〕

As explained above, according to the present invention, it is possible to prevent the occurrence of dew condensation even when the device is installed in a closed casing or a closed room, and has a significant industrial effect.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a heat pipe type heat exchanger according to an embodiment of the present invention, Fig. 2 is a schematic diagram showing an example of use of the heat pipe type heat exchanger, and Fig. 3 is a conventional heat pipe type heat exchanger. It is a perspective view of an exchanger. 1... Sealed casing, 2... Heating element, 3... Heat vibrator heat exchanger, 4... Fan, 5...
・Heat pipe, 6...Plate fin, 7
...Partition plate, lO...insulation layer.

Claims (1)

[Claims] In a heat pipe type heat exchanger in which multiple plate fins are inserted into multiple heat pipes via partition plates, one of the partition plates serves as a heat absorption section and the other serves as a heat dissipation section, a heat insulating layer is provided near the partition plate. A heat pipe type heat exchanger characterized in that a heat absorption part and a heat radiation part are isolated by providing a.