JPH0246855B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for transporting heat also in top heat mode.

Conventional technology The conventional technology that transfers steam heat intermittently and in top heat mode is as follows.
As shown in FIG. 2, a heating side sealed chamber 2 into which the working fluid 1 is injected and a heat radiation side sealed chamber 3 where the working fluid 1 is condensed are connected by a pipe body 4, and an opening at one end of this pipe body 4 is connected. It is located above the working fluid 1 in the heating side sealed chamber 2, while the opening at the other end of the tube body 4 is located near the bottom wall of the heat dissipation side sealed chamber 3 and below inside the working fluid 1 condensed there. and further,
At least a portion of the pipe body 4 is placed in the heat radiation side sealed chamber 3.
There is one in which the condensed working fluid 1 is refluxed as a liquid without causing any heat transfer based on the temperature reversal of both sealed chambers. −16067).

Problems to be Solved by the Invention In such conventional technology, the temperature of the heating-side sealed chamber is completely lower than the temperature of the heat-radiating side sealed chamber.
Moreover, unless a temperature difference occurs until an extra pressure difference equal to the head difference between the two sealed chambers is generated, the working fluid accumulated in the heat radiation side sealed chamber will not flow back. When the temperature becomes low, there is a problem that reflux cannot be carried out or that reflux takes a considerable amount of time.

Means for Solving the Problems In order to solve these problems, the present invention has the following features:
A heating side sealed block consisting of a heating section and a heating section sealed tank, a heat radiating section having a fan, a heat radiating side sealed tank, a conveying pipe communicating the upper part of the heating side sealed block and one end of the heat radiating section, and a heat radiating section and other parts. It consists of a liquid pipe that communicates the end with the lower part of the sealed tank on the heat radiation side, a temperature detection means provided in a part of the sealed tank on the heat radiation side, and a control means that controls the air volume of the fan based on the signal from this detection means. It is.

Effect With the above configuration, in the heating mode, the working fluid heated and evaporated in the heating-side sealed block passes through the conveying pipe to the heat radiating section, where the latent heat of condensation is radiated and the liquefied working fluid is sequentially pushed. However, it flows through the liquid pipe into the closed tank on the heat radiation side and is stored there. If the temperature inside the sealed tank on the heat dissipation side becomes abnormally low due to changes in heat dissipation load or heat input, the fan air volume is reduced by the fan air volume control means in response to a signal from the temperature detection means, and the amount of heat dissipated by the heat dissipation section is reduced. decreases, so the temperature of the working fluid flowing into the closed tank on the heat radiation side rises, and when the temperature inside the sealed tank on the heat radiation side returns to normal temperature, the air volume of the fan is controlled so as to return to the original air volume again. Therefore, the temperature of the sealed tank on the heat dissipation side is always maintained at a constant temperature, and when the heating mode ends and the return mode is entered, the sealed tank on the heat dissipation side maintains a sufficiently high pressure, so that the sealed block on the heating side is closed in a single time. When the temperature becomes lower than the temperature of the heat radiation side sealed tank, the pressure is reversed and the working fluid in the heat radiation side sealed tank can be reliably returned to the heating part sealed tank.

Embodiment An embodiment of the present invention will be described below with reference to FIG.

The heating section 5 includes a heat source 6 such as a heater, a heat exchanger 7, and a gas-liquid separator 8 disposed above and in communication with the heat exchanger 7. A heating section sealed tank 9 is disposed approximately in the middle between the heat exchanger 7 and the gas-liquid separator 8, and the lower portions of the heating section sealed tank 9 and the heat exchanger 7 are connected to each other by a liquid supply pipe 10. A part of the gas-liquid separator 8 and the upper part of the heating section sealed tank 9 are connected through a communication pipe 11, thereby forming a heating side sealed block 12. The heat dissipation section 13 is composed of a heat dissipation pipe 14 with a fillet and a heat dissipation fan 15 , and the upper part of the heat dissipation section 13 and the upper part of the gas-liquid separator 8 are connected to each other by a conveying pipe 16 .

The lower part of the heat radiation side sealed tank 17 is connected to the lower part of the heat radiation part 13 through a liquid pipe 18, so that the whole is in a sealed state, and an appropriate amount of evaporative working fluid 19 is contained inside.
is included. A temperature detecting means 20 such as a thermistor or a bimetal is disposed at the lower part of the heat radiation side sealed tank 17, and a fan air volume control means 21 which is interlocked with this temperature detecting means 20 is provided.

In the above configuration, the heating mode is such that when the working fluid 19 in the heat exchanger 7 is heated by the operation of the heat source 6 and begins to evaporate, it becomes bubbles and reaches the gas-liquid separator 8, where the gas and liquid are separated and the steam is transported. It passes through the tube 16 and reaches the heat radiation section 13 . Heat dissipation pipe 14 with fins
The working fluid 19, which has been liquefied by the heat of condensation carried away by the heat radiation fan 15, flows down the inside of the heat radiation pipe 14, passes through the liquid pipe 18 from the lower part of the heat radiation part 13, and reaches the heat radiation side sealed tank 17. The working fluid 19, which has been cooled down to a low temperature by the heat radiation section 13, flows into the heat radiation side sealed tank 17 by condensing the vapor of the working fluid 19 in the heat radiation side sealed tank 17 and lowering the pressure. Furthermore, the non-condensable gas in the heat radiation side sealed tank 17 is compressed in balance with the pressure of the heating section 5. When steam is sent out in the heating section 5 and the working fluid 19 decreases, the level of the working fluid 19 in the heating section sealed tank 9 decreases, and when it exceeds a certain level, it switches to the return mode. When the temperature of the heating side sealed block 12 becomes lower than the temperature of the heat radiation side sealed tank 17, the working fluid 19 in the heat radiation side sealed tank 17 starts to flow back toward the heating part sealed tank 9 due to the pressure difference of the saturated steam. The level of the working fluid 19 in the heating section sealed tank 9 rises, and when it exceeds a certain level, the mode is switched to the heating mode again, and such a cycle is repeated to carry out heat transfer.
Here, if the temperature inside the heat radiation side sealed tank 17 becomes abnormally low due to fluctuations in the heat radiation load or heat input, the fan air volume is controlled by the heat radiation fan 15 air volume control means 21 in response to a signal from the temperature detection means 20. Since the amount of heat radiated by the heat radiating section 13 is reduced, the amount of working fluid 19 flowing into the heat radiating side sealed tank 17 is reduced.
When the temperature in the heat radiation side sealed tank 17 returns to normal temperature, the air volume of the heat radiation fan 15 is controlled to return to the original air volume again. Therefore, the heat radiation side sealed tank 17 is always kept at a constant temperature, and when the heating mode ends and the return mode is entered, the heat radiation side sealed tank 17 maintains a sufficiently high pressure, so that the heating side Sealed block 1
2 becomes lower than the temperature of the heat radiation side sealed tank, the pressure is reversed, and the working fluid 19 in the heat radiation side sealed tank 17 can be reliably returned to the heating section sealed tank 9.

Effects of the Invention As described above, the heat transfer device of the present invention provides the following effects.

Temperature detection means is provided in a part of the sealed tank on the heat dissipation side, and control means for controlling the air volume of the heat dissipation fan based on the signal from the temperature detection means is provided. The temperature can be maintained at an optimal constant temperature, and the return of the working fluid can be performed reliably in a short time.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram of a heat transfer device showing an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of a conventional heat transfer device. 5... Heating section, 9... Heating section sealed tank, 12
... Heating side sealing block, 13 ... Heat radiation part, 15
...Fan, 17... Heat radiation side sealed tank, 20...
...Temperature detection means, 21...Control means.

Claims (1)

[Claims] 1. A heating side sealed block consisting of a heating section and a heating section sealed tank, a heat radiating section having a fan, a heat radiating side sealed tank, and a conveying pipe communicating the upper part of the heating side sealed block and one end of the heat radiating section; A liquid pipe that communicates the other end of the heat radiating section with the lower part of the heat radiating side sealed tank, a temperature detecting means disposed in a part of the heat radiating side sealed tank, and an air volume of the fan based on a signal from the detecting means. A heat transfer device consisting of a control means for controlling.