JPS61237926A - Heat transfer device - Google Patents

Abstract

PURPOSE:To improve heat transfer efficiency by cooling efficiently a heat medi um container with reflux liquid and shortening stop time of a heat source in such a manner that a by-pass pipe connecting a bottom of heating side tank and heating side block is installed and a check valve at a part of the by-pass pipe and heat medium diffusion means are also installed. CONSTITUTION:When reduction of liquid level of a heating side tank 14, stop of heating, and cooling of a heating side block 17 takes place, inner pressure is reduced by condensation of inside heat medium vapor. When reduction of inner pressure progresses and at a check valve 22, pressure of heating side block 17 is lower than the pressure of heat release side tank 20, heat medium liquid stored in the heat release side tank 20 starts reflux to the heating side tank 14. With starting of liquid reflux, low temp. heat medium cooled by a radiator 18 is diffused by diffusion means 26 and temp. of the heating side tank 14 is quickly reduced. Therefore, reflux speed is increased by pressure difference between heat release tank 20 and said tank 14 and reflux is finished in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat transfer device that transfers heat without a pump or other device, regardless of the positional relationship between a heating section and a heat radiating section.
It is something.

Conventional Technology This type of heat transfer device uses steam pressure to transfer heat intermittently downward as well, as shown in FIG. One of the communication passages 3 communicates completely with the lower part of the upper container 1 and a part of the lower container 2, and a check valve 5 is interposed in the middle of the communication passage. The communication path 4 communicates a part of the upper container 1 with the vicinity of the lower part of the lower container 2, and a radiator 6 is interposed in the middle thereof, and a heating device 7 is provided corresponding to the lower container 2. In addition to providing liquid level detection devices 8 at two points, upper and lower, in the container 2, a control mechanism 9 is provided for controlling the heating device 7 based on the signals from the liquid level detecting devices 8. The heat medium liquid stored in the container 2 is heated, and due to its vapor pressure, the heat medium liquid passes through the communication path 4 and radiates heat at the radiator 6 interposed in the middle, and is stored in the upper container 1. As the heating continues, the level of the heat medium liquid in the lower container 2 decreases and when it reaches the lower detection position of the liquid level detector 8, the operation of the heating device 7 is stopped by the control mechanism 9. When the heating stops and the vapor pressure in the lower container 2 decreases due to cooling, the heat transfer liquid stored in the upper container 1 is transferred by gravity and atmospheric pressure to the communication path 3 and the check valve inserted in the middle. The liquid level in the lower container 2 rises through the valve 5 to the lower container 2, and when it reaches the upper detection position of the liquid level detector 8, the control mechanism 9 turns on the heating device 7. As soon as the engine was started, the sensible heat of the heat transfer fluid was used to exchange heat. (For example, Japanese Utility Model Publication No. 59-14650) Problems to be Solved by the Invention However, in the above configuration, the fast-wave velocity of the heat transfer liquid is mostly regulated by the external cooling rate of the lower container on the heating side. Therefore, when the volume of the lower container is large, even if the surface is cooled, the center part is difficult to cool down, resulting in a problem that it takes a long time to complete the reflux.

The present invention solves such conventional problems, and aims to efficiently cool a heat medium liquid container on the heating side with reflux liquid, shorten the stop time of the heating source, and improve heat transfer efficiency.

Means for Solving the Problems In order to solve the above problems, the heat transfer device of the present invention includes a heating side block consisting of a heating section and a heating side tank, a heat radiation section, a heat radiation side tank, and a heating side block. A steam pipe that communicates between the upper part and one end of the heat radiating section, a liquid pipe that communicates the other end of the heat radiating section and a part of the heat radiating side tank, and a control means for controlling on/off of the heat source of the heating section, the heat radiating side. A bypass pipe is provided to connect the vicinity of the bottom of the tank and a part of the heating side block.
A check valve or an on-off valve is interposed in a part of the bypass pipe, and a means for dispersing the heat medium liquid flowing from the bypass pipe is provided in the heating side block.

Function: With the above-described configuration, the heat medium liquid is heated in the heating section to cause boiling, and steam is generated.

The generated steam passes through the steam pipe connected to the top of the heating side block and reaches the heat radiation section, where the heat medium vapor radiates all of its latent heat of condensation and condenses, and the liquefied heat medium liquid passes through the liquid pipe and radiates heat. Flows into the side tank. As the operation in the heating mode progresses, the level of the heat medium liquid in the heating side tank decreases, and when the liquid level reaches a certain level, the operation in the heating mode is stopped by the control means and the mode is switched to the fast wave mode. Become. When the heating side block is cooled, the heat medium vapor inside condenses and the internal pressure decreases, and when the pressure on the side of the check valve or on-off valve connected to the heating side block installed in the bypass pipe becomes low. The heat medium liquid stored in the heat radiation side tank passes through the bypass pipe and begins to wave to the heating side block. The low-temperature heat medium liquid that has been rapidly flowing through the heat dissipation side tank is diffused by the diffusion means in the heating side block, thereby increasing the surface area and rapidly lowering the temperature inside the heating side block. As the temperature inside the heating side block decreases, the internal pressure also decreases rapidly, and the fast wave speed of the heat medium flow is accelerated due to the pressure difference with the heat radiation side tank, and the fast wave is completed in a short time. When the reflux mode is completed, the heating mode is started by the control means, and this cycle is repeated to carry out heat transfer.

Embodiment DI 2 - Large appearance 4 Xuanyu Sho Also, Tenko M side f East 1 will be explained.

In Fig. 1, 1o is a heating section, and a heat source 1 such as a heater.
1, a heat exchanger 12, and a gas-liquid separator 1a disposed above and in communication with the heat exchanger 12. A heating side coupling 14 is disposed at a position approximately intermediate between the heat exchanger 12 and the gas-liquid separator 13, and the heating side coupling 14 and the lower part of the heat exchanger 12 are connected through a liquid supply pipe 15, and the gas A part of the liquid separator lake 13 and the upper part of the heating side tank 14 are connected through a communication pipe 16 to form a heating side block 17. The upper part of the heat radiation part 18 and the upper part of the gas-liquid separator 13 are connected to each other by a steam pipe 19. The heat radiation side tank 20 is provided at a position above the heating side tank 14, and the vicinity of its upper part is configured to communicate with the lower part of the heat radiation part 18 by a liquid pipe 21, and an appropriate amount of evaporative heat medium is sealed inside. There is. The vicinity of the lower part of the heat radiation side tank 20 and the upper part of the heating side tank are communicated through a bypass pipe 23 in which a reverse valve 22 is interposed.

Check valve 22 Heating side tank 14 Heat radiation side tank 2
This valve has a structure that stops the flow of heat medium liquid to zero and has low flow resistance in the forward direction. Even if this valve is an on-off valve configured to be driven in correlation with the liquid level of the heating side tank 14 or the heat radiation side tank 20, the effect will not change in any way. The heating type tank 14 includes a level detection means 24& for detecting the internal liquid level.

24b, and a control means 25 for controlling on/off of the heat source 110 based on this signal or the like. Lebbe?
However, even if the detection means 24a and 24b are disposed in the heat radiation side tank 20, their purpose does not change in any way.

Further, the positional relationship between the heat radiation side tank 20 and the heating side block 17 is not restricted.

Inside the heating tank 14, a heating medium liquid diffusion means 26 in the form of an umbrella-shaped perforated plate is held by a support means 27, facing the opening of the bypass pipe 3.

In the above configuration, the heat medium liquid in the heat exchanger 12 is heated by the operation of the heating unit 10, and when it starts to evaporate, it becomes bubbles and reaches the gas-liquid separator 1a, where the heat medium vapor separated into gas and liquid is It passes through the steam pipe 19 and reaches the heat radiation section 18 . The heat radiating section 18 radiates the latent heat of condensation, and the heat medium vapor condenses to become a heat medium liquid, which passes through the liquid pipe 21 and reaches the heat radiating side tank 20 . When steam is sent out in the heating section 10 and the heat medium liquid decreases, the heat medium liquid is supplied through the heating side tank 14 and the liquid supply pipe 15, and normal operation is maintained. The heat medium liquid level in the side tank 14 gradually decreases.

When the liquid level in the heating side tank 14 finally decreases and the lower level I is detected by the detection means 24b, the control means 25 starts the heat source 11 of the heating section 10.
will be stopped. When heating is stopped and the heating side block 17 is cooled, the internal heat medium vapor condenses and the internal pressure decreases.

The internal pressure of the heating side block 17 continues to decrease, and the bypass pipe 2
When the pressure on the heating side block 17 side of the check valve 22 interposed in Fast waves begin to flow to the heating side tank 14. As the fast waves continue, the liquid level in the heating side tank 14 rises, and when detected by the upper level detection means 24a, the heat source 11 of the heating section 10 is started by the control means 25, and this cycle rL/
't(t) In return, the heat of the heating section 10 is transferred to the heat radiation section 18.

Here, when the fast wave of the heat medium liquid starts, the heat medium liquid, which has been cooled down to a low temperature by the heat radiation part 18, is diffused by the diffusion means 26 in the heating side tank 14, and the surface area increases, so that heat exchange is effective. The temperature inside the heating side tank 14 is rapidly lowered. By lowering the temperature inside the heating block,
Since the internal pressure also decreases rapidly, the speed of rapid formation of the heat medium liquid is accelerated due to the pressure difference with the heat dissipating side kunk 20, and the rapid wave is completed in a short time, which has the effect of improving the overall heat transfer efficiency. .

In the present invention, the effectiveness is the same whether it is an open system or a closed system.

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

It consists of a steam pipe that communicates between the upper part of the heating side block and one end of the heat radiation section, a liquid pipe that communicates the other end of the heat radiation section and a part of the heat radiation side tank, and a control means that controls the on/off of the heat source of the heating section. A bypass pipe is provided to connect the vicinity of the lower part of the heat dissipation side tank and a part of the heating side block, and a reverse valve or an on-off valve is inserted in the bypass pipe, and a high speed wave from the bypass pipe is installed in the heating side block. Since a means for diffusing the incoming heat transfer liquid is provided, the speed at which the heat transfer liquid waves from the heat dissipation side tank to the heating side block is accelerated, the time for completion of the fast wave is shortened, and the overall heat transfer efficiency is improved. There is an effect.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a heat transfer device according to a first embodiment of the present invention, and FIG. 2 is a configuration diagram of a conventional heat transfer device. 10... Heating part, 14... Heating side tank, 17... Heating side block, 18...
・Heat radiation part, 19...Steam pipe, 20...
Heat radiation side tank, 21...Liquid pipe, 22...
・Check valve, 23... Bypass pipe, 26...
...Diffusion means.

Claims (1)

[Claims] a heating side block consisting of a heating section and a heating side tank, a heat radiation section, a heat radiation side tank, a steam pipe communicating between the upper part of the heating side block and one end of the heat radiation section, and the other end of the heat radiation section and the heat radiation side tank; A bypass pipe is provided, which comprises a liquid pipe communicating with a part of the heat radiation side tank and a control means for controlling on/off of a heating section heat source, and connecting a portion of the heating side block to a vicinity of the lower part of the heat radiation side tank. A heat transfer device, wherein a check valve or an on-off valve is interposed in the bypass pipe, and a means for diffusing heat medium liquid returned from the bypass pipe is provided in the heating side block.