JPH0246854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat transfer device which also transfers heat in top peat mode.

Conventional technology As shown in Fig. 4, a conventional technology for transferring heat intermittently through a single pipe and even in top heat mode is as shown in Fig. 4. The opening at one end of this tube 4 is positioned above the working fluid 1 in the heating side sealed chamber 2, while the opening at the other end of the tube 4 is connected to The opening is arranged near the bottom wall of the heat-dissipating sealed chamber 3 and below the interior of the working fluid 1 condensed therein, and at least a portion of the tube body 4 is arranged near the bottom wall of the heat-dissipating sealed chamber 3. There is a device in which the condensed working fluid 1 is refluxed as a liquid without causing any heat transfer based on the reversal of the temperatures in both sealed chambers. Public bulletin).

Problems to be Solved by the Invention In such conventional techniques, due to the completely sealed structure, non-condensable gas is generated due to decomposition of the hydraulic fluid or corrosion of components, or slow leakage or corrosion within the components. Not only is there a great risk that the internal content will rise due to the precipitation of non-condensable gases and the original heat transfer function will be disrupted, but there is also a risk of rupture. Another problem was that it was difficult to perform vacuum work and sealing after filling in the hydraulic fluid.

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 radiation section, a heat radiation side sealed tank, a conveyor pipe communicating with the upper part of the heating side sealed block and the upper part of the heat radiation section, the lower part of the heat radiation section and the heat radiation side. A liquid pipe that communicates with the vicinity of the bottom of the sealed tank, a solenoid valve installed at the top of the sealed tank on the heat radiation side, a means for detecting the temperature or pressure of the sealed block on the heating side, and a signal from the detecting means to detect the temperature or pressure of the solenoid valve. It is equipped with a controller that controls opening and closing.

Effect With the above configuration, after the working fluid is injected and the device assembly is completed, the working fluid is heated and evaporated in the heating side sealing block and reaches the heat radiating section through the conveying pipe, where it radiates the latent heat of condensation and is liquefied. The hydraulic fluid is sequentially pushed through the liquid pipes and flows into the sealed tank on the heat radiation side and is stored there. At this time, the air remaining in the sealed tank on the heat radiation side is discharged from the solenoid valve to improve the vacuum level. let When the first heating mode is completed, the solenoid valve is closed, and when the temperature of the heating side sealed block becomes lower than the temperature of the heat radiation side sealed tank, the working fluid in the heat radiation side sealed tank starts to flow back toward the heating part sealed tank. However, once the return is completed, normal heating and return mode operations are repeated.

The above is the state of system startup and normal operation, but after a long period of time, non-condensable gas accumulates inside due to various reasons, reducing the efficiency of heat transfer. Sometimes, during heating operation, the temperature and internal temperature of the system rises abnormally, and when it exceeds a certain value, the controller opens the solenoid valve to exhaust non-condensable gas, and when the temperature or internal temperature returns to normal values, the solenoid valve closes. It can be closed and returned to normal operating mode.

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 burner and 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 to form a heating section sealed block 12.

The heat dissipation section 13 includes a heat dissipation pipe 14 and a heat dissipation fin 15.
The upper part of the heat radiating part 13 and the upper part of the gas-liquid separator 8 are connected to each other by a conveying pipe 16. A liquid pipe 17 is connected to the lower part of the heat radiation part 13, and the other end is connected to the lower part of the heat radiation side sealed tank 18. A solenoid valve 19 is disposed at the upper part of the heat radiation side sealed tank 18. A suitable amount of hydraulic fluid 20 is sealed in this closed system.

The heating section sealed tank 9 is provided with temperature or internal detection means 21, and this detection means 21 is connected to the controller 2.
2, the controller 22 and the solenoid valve 19
are also electrically connected.

In the above configuration, in the initial stage after the hydraulic fluid 20 is injected and the device assembly is completed, the solenoid valve 19 is closed, and the hydraulic fluid 20 in the heat exchanger 7 is heated and evaporated by the operation of the heat source 6. When the steam starts, it becomes bubbles and reaches the gas-liquid separator 8, where the gas and liquid are separated, and the steam passes through the conveying pipe 16 and reaches the heat radiation section 16. The working fluid 20, which has been liquefied by the heat of condensation carried away by the heat dissipation pipe 14 and the heat dissipation fins 15, flows down inside the heat dissipation pipe 14, passes through the liquid pipe 17 from the lower part of the heat dissipation part 13, and reaches the heat dissipation side sealed tank 18. The air that was present in the system from the beginning gathers in the heat radiation side sealed tank 18,
Due to further compression, the pressure and temperature rise abnormally, and the detection means 21 and controller 22 detect the solenoid valve 19.
is opened, and when the air is discharged, the pressure and temperature decrease, and the solenoid valve 19 is closed. By repeating this process, the degree of vacuum is increased, and when the first heating mode ends, the next mode is the feedback mode, and when the temperature of the heating side sealed block 12 becomes lower than the temperature of the heat radiation side sealed tank 18, the heat radiation side sealed tank 18 The working fluid 20 inside starts to flow back toward the heating section sealed tank 9 due to the pressure difference of the saturated steam, and when the return is completed, the normal heat transfer operation is repeated from the next time.

When non-condensable gas accumulates in the closed system, the temperature and pressure during heating operation will rise compared to normal times, so the temperature and pressure are detected by the detection means 21, and the controller 2
2, when the solenoid valve 19 is opened, the non-condensable gas collected in the upper part of the heat radiation side sealed tank 18 is discharged, and when the solenoid valve 19 is closed after discharge, the normal state is restored.

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

A solenoid valve is installed at the top of the sealed tank on the heat radiation side, and the opening and closing of the solenoid valve is controlled by detecting the temperature or pressure of the sealed block on the heating side. (1) Even if non-condensable gas accumulates, It is possible to easily return to a normal heat transfer state by discharging the heat appropriately.

(2) The solenoid valve can be opened to exhaust air during initial startup of the system, making construction easier.

[Brief explanation of drawings]

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, 18
... Heat radiation side sealed tank, 19 ... Solenoid valve, 21 ...
...Detection means, 22...Controller.

Claims (1)

[Claims] 1. A heating side sealed block consisting of a heating section and a heating section sealed tank, a heat radiation section, and a heat radiation side sealed tank,
A conveying pipe that communicates between the upper part of the heating side sealed block and the upper part of the heat radiating section, a liquid pipe that communicates the lower part of the heat radiating section and the vicinity of the lower part of the heat radiating side sealed tank, and the upper part of the heat radiating side sealed tank. A heat transfer device comprising a solenoid valve disposed in the heating side, a detection means for detecting the temperature or pressure of the heating side sealing block, and a controller for controlling opening and closing of the solenoid valve based on a signal from the detection means.