JPH0827145B2 - Heat carrier - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat transfer device that is used in a cooling and heating hot water supply device, an exhaust heat recovery device, a solar heat utilization device, and the like, and uses a latent heat medium as a working liquid.

2. Description of the Related Art A conventional heat transfer device of this type is configured as shown in FIG.

A liquid reservoir tank 3 accommodating the float 2 is provided above the generator 1, and a liquid reservoir separator 4 is provided between the generator 1 and the liquid reservoir tank 3. A vapor introducing portion 5 is provided on the upper portion of the liquid storage tank 3, and is brought into contact with the upper portion of the float 2 to move up and down to connect the liquid storing tank 3 to the vapor introducing portion 5.
An on-off valve 7 for opening and closing is installed inside the steam introducing part 5.
The lower part of the liquid reservoir separator 4 and the upper part of the generator 1 are connected to each other by a gas outward pipe 8, and the lower part of the generator 2 is connected to a liquid return pipe 9. The upper part of the liquid reservoir separator 4 and the vapor introduction part 5
Are connected by a communication pipe 10, and the lower part of the liquid storage tank 3 and the liquid storage separator 4 are connected by a return pipe 12 provided with a check valve 11A on the way. The upper part of the heat exchanger 13 and the upper part of the liquid reservoir separator 4 are connected by the forward pipe 14, and the lower part of the heat exchanger 13 and the lower part of the liquid reservoir tank 4 are connected by a return pipe 15 provided with a check valve 11B in the middle. ing. The hydraulic fluid 16 in the liquid storage tank 3 causes buoyancy in the float 2, and the vertical movement of the float 2 controls the opening / closing valve 7.

The on-off valve 7 controls the pressure in the liquid storage tank 3,
The hydraulic fluid 16 is pressure-fed from the generator 1 to the heat exchanger 13 to transfer heat.

Problems to be Solved by the Invention However, in the above-mentioned configuration, the cold hydraulic fluid 16 recovered from the fluid reservoir tank 3 through the return pipe 12 in the fluid reservoir separator 4 and the hydraulic fluid 16 heated by the generator 1 are collected. Are mixed, the function as a gas-liquid separator is lowered, and further, the hot working liquid 16 flows into the generator 1, so that the heat exchange performance in the generator 1 is lowered, and the liquid reservoir separator 4 is a liquid reservoir tank. It is necessary to make it larger than the capacity of the liquid storage tank 3 and the size cannot be reduced.
Since it is provided above, there is a problem that the height of the entire device is increased.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to reduce the size of the liquid reservoir separator and the entire device, and further to improve the heat exchange performance in the generator.

Means for Solving the Problems In order to solve the above problems, the heat transfer device of the present invention is
A generator that receives the working fluid of the latent heat medium and generates its vapor, a liquid reservoir tank located above the generator, a heat exchanger that cools the working fluid, and an upper part of the liquid reservoir tank that is connected by an on-off valve. A steam introducing part, a communication pipe connecting the generator-like part and the upper part of the steam introducing part, and a first part in the middle of connecting the lower part of the liquid storage tank and the lower part of the generator.
A return pipe provided with a check valve, and an upper portion provided above the generator are connected to an upper portion of the heat exchanger by a gas outgoing pipe branched from the communication pipe, and a lower portion is provided with the first check valve and the above. A liquid reservoir separator connected by a liquid return pipe and the return gap between the generators, a forward pipe connecting the liquid reservoir separator upper part and the heat exchanger, the heat exchanger and the liquid reservoir tank on the way. And a return pipe provided with a check valve for connection.

Action The present invention has the above-described configuration, so that the cold working fluid is directly recovered from the liquid storage tank through the return pipe to the generator, so that the position of the liquid storage tank can be lowered, and the generator is provided in the liquid storage separator. The working fluid heated by the gas flows in through the gas outflow pipe to be a gas-liquid separator, the liquid is recovered in the generator through the liquid return pipe, and the gas is pumped to the heat exchanger through the outflow pipe. Therefore, the gas-liquid separation function of the liquid storage separator does not deteriorate, and the liquid storage separator can be made smaller than the capacity of the liquid storage tank.

Embodiment An embodiment of the present invention will be described below with reference to FIG. The same members having the same functions as those in FIG. 2 are designated by the same reference numerals and the description thereof is omitted.

The liquid reservoir tank 3 is provided above the generator 1, the vapor introducing portion 5 is provided above the liquid reservoir tank 3, the upper portion of the generator 1 and the vapor introducing portion 5 are connected by the communication pipe 10, and the lower portion of the generator 1 is connected to the liquid. The lower part of the storage tank 3 is connected with a return pipe provided with a first check valve 11A on the way. The liquid reservoir separator 4 is provided at substantially the same position as the liquid reservoir tank 3, and the upper part of the liquid reservoir separator 4 and the communication pipe 10
The gas upstream pipe branched from the above is connected, and the lower part of the liquid reservoir separator 4 and the return pipe 12 are connected by the liquid return pipe 9.

The hydraulic fluid 16 heated by the generator 1 evaporates by boiling, and the communication pipe
10 and the gas outflow pipe 8 to flow into the liquid reservoir separator 4,
The gas-liquid is separated, the liquid is recovered to the generator 1 through the liquid return pipe 9, and the gas enters the heat exchanger 13 through the outward pipe 14 and flows into the liquid reservoir tank 3 through the return pipe. When the open / close valve 7 is opened by the float 2, the hydraulic fluid 16 in the liquid reservoir tank 3 is recovered to the generator 1 through the return pipe 12.

As described above, in the above-described embodiment, the working fluid 16 stored in the liquid storage tank 3 is directly collected into the generator 1 without flowing into the liquid storage separator 4, so that the liquid storage separator 4
The working fluid 16 therein is not agitated and mixed, and the gas-liquid separation function does not deteriorate. Further, since the cold hydraulic fluid 16 flows into the generator 1, the heat exchange performance of the generator 1 does not deteriorate. Since the liquid storage tank 3 and the liquid storage separator 4 are provided at substantially the same position, the height of the entire apparatus can be reduced.

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

(1) The lower part of the liquid reservoir tank and the lower part of the generator are connected by a return pipe provided with a first check valve in the middle, and the upper part of the liquid reservoir separator provided above the generator is a gas outflow pipe branched from the communication pipe. Since the lower part is connected by the return pipe between the first check valve and the generator and the liquid return pipe, cold working fluid is directly collected from the liquid reservoir tank through the return pipe to the generator. The working fluid in the liquid storage separator is not agitated and mixed so that the gas-liquid separation function does not deteriorate and the liquid storage separator can be downsized, and hot working fluid does not flow into the generator and heat exchange performance does not deteriorate. ..

(2) Since the liquid storage tank can be lowered to the position of the liquid storage separator, the height of the entire device can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram of a heat transfer device according to an embodiment of the present invention, and FIG.
The figure is a block diagram of a conventional heat transfer device. 1 ... Generator, 3 ... Liquid reservoir tank, 4 ... Liquid reservoir separator, 10 ... Communication pipe, 12 ... Return pipe, 13 ... Heat exchanger,
14 …… Outgoing, 15 …… Returning.

Claims (1)

[Claims] 1. A generator for containing a working fluid of a latent heat medium to generate steam thereof, a liquid reservoir tank located above the generator, a heat exchanger for cooling the working fluid, and an upper portion of the liquid reservoir tank. A first check valve in the middle of connecting the vapor introducing part connected to the upper part of the generator and the upper part of the vapor introducing part, and the lower part of the liquid reservoir tank and the lower part of the generator. And a return pipe provided above the generator, and an upper part of the generator is connected to an upper part of the heat exchanger by a gas upstream pipe branched from the communication pipe, and a lower part is between the first check valve and the generator. A liquid reservoir separator connected to the return space and a liquid return pipe, a forward pipe connecting the upper part of the liquid reservoir separator to the heat exchanger, and a check valve in the middle of the heat exchanger and the liquid reservoir tank. A heat transfer device provided with a return pipe provided and connected.