JPS60174487A - Heat transfer system - Google Patents

Abstract

PURPOSE:To eliminate the necessity for a circulation pump and a compressor by connecting a condensor and a fluid medium storage section with a conduit, disposing a pressure generator between a vaporizer and the fluid medium storage section and connecting the pressure generator and fluid medium storage section with a pressurizing conduit having a valve. CONSTITUTION:A condenser 3 is arranged below the height of a vaporizer 1, and a fluid medium storage section 2 is arranged below the height of the condenser 3. The condenser 3 and fluid medium storage section 2 are connected through a conduit. A pressure generator 9 is arranged between the vaporizer 1 and fluid medium storage section 2. The vaporizer 1 and pressure generator 9 are connected by a fluid medium supply passage 10, and further the pressure generator 9 and fluid medium storage section 2 are connected by a pressurizing passage 11 which has a valve 17. Because of such an arrangement, the heat transfer can be conducted merely by heating the fluid medium inside the pressure generator 9, thus eliminating the necessity for a power source such as a circulation pump or a compressor.

Description

[Detailed Description of the Invention] This invention, for example, in a solar hot water supply system, heats the water by transmitting heat absorbed from sunlight via a heating medium to water in a heat storage tank located at a remote location. It relates to a heat transport system used as a system.

Conventional solar water heating systems require power sources such as circulation pumps and compressors to circulate the heat medium, but these power sources tend to break down easily and are troublesome to repair and maintain. was there.

This invention was made in view of the above circumstances, and an object thereof is to provide a heat transport system that does not require a circulation pump or a compressor.

In the heat transport system according to the present invention, an evaporator, a condenser placed at a height below the evaporator, and a working liquid reservoir placed at a height below the condenser are connected via a conduit. A closed working fluid circulation circuit is constructed in which working fluid is sealed inside, and a pressure generator is placed between the evaporator and the working fluid reservoir, and the evaporator and pressure generator are connected to the working fluid supply path. The pressure generator and the working fluid reservoir are communicated through a pressurizing path, and the pressurizing path is provided with a valve.

In the above, the working fluid used is one that easily changes between the gas phase and the liquid phase, such as Freon 11, Freon 113, and water. Furthermore, after the system is evacuated, the working fluid is sealed in the evaporator and pressure generator with non-condensable gas removed.

In the above, the pressure generator heats and vaporizes the working fluid inside the pressure generator, and sends this gaseous working fluid to the working fluid reservoir to raise the pressure saw inside the working fluid reservoir. As a heating source, solar heat, a gas heater, an electric heater, etc. are used.

The internal vapor pressure when the working fluid in the pressure generator is heated and vaporized is preferably greater than the internal vapor pressure when the working fluid in the evaporator is heated and vaporized.

As the working fluid reservoir, a tank, a U-shaped pipe, a meandering pipe, or the like is used. The internal volume of the working fluid reservoir is preferably larger than the internal volume of a portion of the working fluid circulation circuit that communicates the working fluid reservoir with the evaporator. With this arrangement, when the gaseous working fluid is sent from the pressure generator into the working fluid reservoir, the working fluid in the working fluid reservoir easily flows to the evaporator.

The valve installed in the pressurizing path is closed until the pressure inside the pressure generator reaches a predetermined pressure, when it reaches the predetermined pressure, it is opened, and when the pressure drops again, it is opened. For example, a solenoid valve, a pressure regulating valve, etc. are used.

In this heat transport system, when the working fluid in the pressure generator is heated by solar heat or the like, the working fluid in the pressure generator evaporates, and the vapor pressure in the pressure generator increases. When this vapor pressure increases and reaches a predetermined pressure, the valve in the pressurizing path is opened, and this gaseous working fluid flows into the condenser through the pressurizing path, increasing the vapor pressure in the condenser. Become. As a result, the working fluid flows through a portion of the working fluid circulation circuit that communicates the working fluid reservoir with the evaporator, and flows into the evaporator. The working fluid in the evaporator is heated and vaporized by solar heat or the like. Further, the working fluid sent from the condenser passes through the working fluid supply path and enters the pressure nozzle generator. On the other hand, the gaseous working fluid that has flowed into the condenser from the pressure generator remains in the condenser. When the vapor pressure in the pressure generator drops below a predetermined pressure as a result of the gaseous working fluid flowing into the condenser, the valve provided in the pressurizing path is closed.

Then, the gaseous working fluid obtained in the evaporator reaches the condenser, where it radiates heat and condenses. The heat released during condensation is transferred to the water in the heat storage tank to obtain hot water. The liquefied working fluid is sent to the working fluid reservoir through a fluid path that communicates the condenser and the working fluid reservoir in the hydraulic fluid circulation circuit.

Further, the gaseous working fluid that has flowed into the working fluid reservoir from the pressure generator radiates heat to the working fluid in the working fluid reservoir and is liquefied. By repeating such an operation, the heat obtained in the evaporator is transferred to water etc. via the latent heat of phase change of the working fluid, and this is heated.

As mentioned above, according to the heat transport system of the present invention, it is possible to transport heat by heating the working fluid in the pressure generator, so that it is possible to transport heat by heating the working fluid in the pressure generator. is not required, and reliability is also increased. Furthermore, even if the heat dissipation section is located below the heat receiving section, smooth heat transport can be achieved.

This invention will be described below with reference to embodiments shown in the drawings.

The drawings show the case where the heat transport system according to the invention is used as a solar water heating system.

A solar hot water supply system consists of an evaporator (1) consisting of a solar heat collector placed at a high outdoor location such as on the roof, and a working fluid reservoir (1) consisting of a tank placed below the evaporator (1).
2), a condenser (3) located at an intermediate height between the evaporator (1) and the working fluid reservoir (2), and a working fluid reservoir (2).
) and the evaporator (1), a gaseous working liquid supply path (5) that communicates the evaporator (1) and the condenser (3), and a condenser (3). A closed working fluid circulation circuit (7) is formed in which the working fluid is sealed at a drop-off path (6) that communicates between the evaporator (1) and the working fluid reservoir (2). A pressure generator (9) is arranged at approximately the same height as the evaporator (1) between the evaporator (1) and the pressure generator (9). The pressure generator (9) and the working fluid reservoir (2) are connected to each other through the pressurizing path (
11).

The condenser (3) is equipped with a coiled vibrator (12) inside thereof, and the gaseous working fluid sent from the evaporator (1) through the gaseous working fluid supply path (5) is It is cooled and condensed by the water flowing inside the coiled pipe (12). The heat released during condensation is transferred to the cold water, which is then heated to produce hot water.

One end of the liquid pumping path (4) enters the working liquid reservoir (2) and opens at its bottom, and the other end is connected in communication with the upper end of the evaporator (1). One end of the gaseous working fluid supply path (5) is connected to the upper end of the evaporator (1) in a continuous manner, and the other end is connected to the top wall of the condenser (3>) and opens into the top wall.

Moreover, between the part of the gaseous working fluid supply path (5) near the condenser (3) and the working fluid reservoir (2), the internal pressure of the condenser (3) and the internal pressure of the working fluid reservoir (2) are connected. pressure equalization path (13
) is provided. The pressure equalization path (13) has one end connected in a continuous manner to the lower end of the gaseous working fluid supply path (5), and the other end connected in a continuous manner to the top wall of the working fluid reservoir (2). There is.

Further, a float valve (14) is provided in the pressure equalization path (13).

The upper end of the liquid descent path (6) is connected in a continuous manner to the lower end of the condenser (3), and the lower end is connected in a continuous manner to the top wall of the working liquid reservoir (2). Further, a check valve (15) is provided in a portion of the liquid descent path (6) above the working liquid reservoir (2) and below the flow 1-valve (14).

The check valve (15) allows the hydraulic fluid to flow only from the top to the bottom, that is, from the condenser (3) to the hydraulic fluid reservoir (2).

The pressure generator (9) is arranged on the roof of the solar collector. The working fluid supply path (10) has one end connected to the lower end of the evaporator (1) in a communicating manner, and the other end connected to the lower end of the pressure generator (9) in a communicating manner. Also, made!
F! A check valve (16) is provided in the IJ liquid supply path (10). A check valve (1G) is provided to ensure that the working fluid flows only from the evaporator (1) to the pressure generator (9). In addition, a hydraulic fluid supply path (10) and a gaseous hydraulic fluid supply path (
5), a pressure equalizing passage (18) is provided to equalize the pressure between the upper end and the lower end of the evaporator (1). One end of the pressurizing path (11) is connected in a communicating manner to the upper end of the pressure generator (9), and the other end is connected in a communicating manner to the lower end of the peripheral wall of the working fluid reservoir (2). The pressurizing path (11) is closed until the steam pressure in the pressure generator (9) reaches a predetermined pressure, opens only when the predetermined pressure is reached, and closes when the steam pressure drops again. A solenoid valve (17) is provided.

In this embodiment, the above-mentioned predetermined pressure refers to the evaporator (1)
The pressure required to lift the working fluid from the working fluid reservoir (2) to the upper end of the liquid pumping path (4) is added to the vapor pressure in the booster.

After the system is evacuated, the working fluid is transferred to the evaporator (1).
and put into the round horn generator (9). The amount of working fluid is such that the evaporator (1) and the pressure generator (9) are never empty during operation of the heat transport system.

In such a solar hot water supply system, first, the working fluid in the evaporator (1) is heated and vaporized by solar heat, and the gaseous working fluid passes through the gaseous working fluid supply path (5) to the condenser (3). ) is sent within. Then, it is cooled and liquefied by the cold water flowing inside the coiled vibrator (12), and the liquefied working fluid passes through the downflow path (6) and enters the working fluid reservoir (2).
The liquid level is above the lower end L1 of the liquid pumping path (4). When the working fluid in the pressure generator (9) is heated and vaporized by solar heat, the vapor pressure in the pressure generator (9) increases by F.

When this vapor pressure reaches a predetermined pressure, the ¥X electromagnetic valve 11) is closed, and the high-pressure gaseous working fluid is forcefully sent into the working fluid reservoir (2) through the pressurizing path (11).

Then, the float is pushed up and the float valve (14) is closed, and the check valve (15) is closed and the condenser (3) is closed.
) to the hydraulic fluid reservoir (2) is stopped.

As a result, the hydraulic fluid accumulated in the hydraulic fluid reservoir (2) is sent into the evaporator (1) through the liquid pumping path (4), and also passes through the hydraulic fluid supply path (10) to the pressure generator. (9). The gaseous hydraulic fluid sent into the hydraulic fluid reservoir (2) remains within the hydraulic fluid reservoir (2). Condenser(
3) When the liquid level in the pressure generator (9) falls below the lower end of the liquid pumping path (4), the steam pressure in the pressure generator (9) falls below a predetermined pressure and the solenoid valve (11) closes. On the other hand, the pressure generator (9
) is being sent to the condenser (3), the working fluid in the evaporator (1) is being heated and vaporized by solar heat, and this gaseous working fluid is being fed into the condenser (3). The liquid flows into the condenser (3) through the liquid supply path (5), radiates heat to the water flowing in the coiled vibrator (12), and is condensed. 7. released when the gaseous working fluid condenses. - The heat heats the water in the coiled vibrator (12). In this way, hot water is obtained, and this hot water is used for hot water supply, space heating, etc. The solenoid valve (17) closes, the supply of gaseous hydraulic fluid from the pressure horn generator (9) to the hydraulic fluid reservoir (2) is stopped, and the liquid level in the hydraulic fluid reservoir (2) rises. When the liquid reaches below the lower end of the liquid path (4), the pressure in the working liquid reservoir (2) decreases and the float valve (14) opens. As a result, the pressure in the working fluid reservoir (2) and the pressure in the condenser (3) are controlled by the pressure equalization path (13).
When the pressure is equalized and the check valve (15) is activated, the condenser (3)
The liquefied hydraulic fluid is sent to the hydraulic fluid reservoir (2). The gaseous working fluid sent from the pressure generator (9) to the working fluid reservoir (2) radiates heat to the working fluid flowing into the working fluid reservoir (2) from the condenser (3) and condenses. Then, the liquid level of the hydraulic fluid in the hydraulic fluid reservoir (2) reaches the lower end r11 of the liquid pumping path (4).
When the pressure inside the pressure generator (9) reaches a predetermined pressure, the same operation as described above is performed. Such operations are repeated, and solar heat is transferred to the water via the latent heat of the phase change of the working fluid.

In the above embodiments, a solar heat collector is used as the pressure generator, but the pressure generator is not limited to this, and a pressure generator heated by an electric heater, gas heater, etc. may also be used. Further, in the above embodiments, the case where the heat transport system of the present invention is applied to a solar hot water supply system is shown, but the present invention is not limited to this, and can also be applied to an exhaust heat recovery system. In this case, the working fluid in the evaporator (1) is heated by exhaust heat.

Furthermore, the heat transport system of the present invention is applicable to other systems.

In addition, in the above embodiment, the condenser is placed below the evaporator, and the working fluid reservoir is placed below the condenser, but the invention is not limited to this. and the hydraulic fluid reservoir, or the three may be arranged at the same height.

[Brief explanation of drawings]

The drawing is a circuit diagram of a solar hot water supply system showing an embodiment of the present invention. (1)...Evaporator, (2)...Working fluid reservoir, (3)
... Condenser, (7) ... Closed hydraulic fluid circulation circuit in which the working fluid is sealed, (9) ... Pressure generator, (10>.
... Hydraulic fluid supply path, (11) ... Pressure path, (11)
··solenoid valve. Procedural amendment written by the above four persons, May 3Q, 19801, Indication of the case: Special Patent Application No. 29295 No. 29295, Title of the invention: Heat transport system 3, Relationship with the amended person's case: Special 1. '1 Address of applicant Nyowa 6-224, Kaiyama-cho, Sakai City Name Showa Aluminum Co., Ltd. 4 Agents 4 non-human agents 5 Date of amendment order Showa Month 116 Details of the number of inventions to be increased by the amendment (Amendment) 1. Title of the invention Heat transport system 2. Claims An evaporator (1), a condenser (3) disposed at a height below the evaporator (1), and a condenser (3) ) is connected to the hydraulic fluid reservoir (2) located at the following height position via a conductor, and the hydraulic fluid is sealed inside to form an IC sealed hydraulic fluid circulation circuit 7.
), a pressure horn generator (9) is arranged between the evaporator (1) and the working fluid reservoir (2), and the evaporator (1) and the pressure horn generator (9) The pressure generator (9) and the working fluid reservoir (2) communicate with each other through the supply path (10).
11), and a heat transport system in which a pressure passage (11) is provided with a valve (17). 3. Detailed Description of the Invention The present invention is a system that heats water by transmitting heat absorbed from sunlight via a heating medium to water in a heat storage tank located at a remote location, in a solar water heating system, for example. related to heat transport systems used as Conventional solar water heating systems require power sources such as circulation pumps and compressors to circulate the heat medium, but these power sources are prone to failure and are troublesome to repair and maintain. was there. This invention has been made in view of the above circumstances, and an object thereof is to provide a heat transport system that does not require a circulation pump, compression Ia, or the like. In the heat transport system according to the present invention, an evaporator, a condenser disposed at a height below the evaporator, and a working fluid reservoir disposed at a height below the condenser are connected via a conduit. A closed working fluid circulation circuit is constructed in which working fluid is sealed inside, and a pressure generator is disposed between the evaporator and the working fluid reservoir, and the evaporator and pressure generator are connected to each other in the working fluid supply path. The pressure saw generator and the hydraulic fluid reservoir are communicated through a pressurizing path, and a valve is provided in the pressurizing path. In the above, the hydraulic fluid includes Freon 11 and Freon. 113, a substance that easily changes between the gas phase and the liquid phase, such as water, is used.Also, after the system is evacuated, the working fluid is transferred to the evaporator and pressure with non-condensable gas removed. In the above, the pressure generator heats and vaporizes the working fluid inside it, and sends this gaseous working fluid to the working reservoir to increase the pressure inside the working fluid reservoir. The heating source used is solar heat, a gas heater, an electric heater, etc. When the working fluid in the pressure generator is heated to avoid vaporization, the internal vapor pressure is the same as that of the working fluid in the evaporator. It is best to keep the pressure higher than the internal vapor pressure when the liquid is heated and vaporized.The hydraulic fluid reservoir may consist of a tank, a U-shaped pipe, a meandering pipe, etc. The internal volume of the reservoir is preferably larger than the internal volume of the part of the hydraulic fluid circulation circuit that communicates the hydraulic fluid reservoir with the evaporator. When the gaseous working fluid is fed into the reservoir, the working fluid in the reservoir easily flows to the evaporator. A solenoid valve, a pressure regulating valve, etc. are used for this type of heat transport system. The working fluid is heated by solar heat and evaporates, increasing the vapor pressure inside the pressure generator.When this vapor pressure increases and reaches a predetermined pressure, if the valve in the pressurizing path is opened, this gaseous The hydraulic fluid flows into the hydraulic fluid reservoir through the pressurizing path, increasing the vapor pressure within the hydraulic fluid reservoir.As a result, the hydraulic fluid communicates between the hydraulic fluid reservoir and the evaporator in the hydraulic fluid circulation circuit. Flowing through the part where
It flows into the evaporator. The working fluid in the evaporator is heated and vaporized by solar heat or the like. Further, the hydraulic fluid sent from the hydraulic fluid reservoir passes through the hydraulic fluid supply path and enters the pressure generator. On the other hand, the gaseous working fluid that has flowed into the working fluid reservoir from the pressure generator remains in the working fluid reservoir. When the vapor pressure in the pressure generator drops below a predetermined pressure as a result of the gaseous working fluid flowing into the working fluid reservoir, the valve provided in the pressurizing path is closed. Then, the gaseous working fluid obtained in the evaporator reaches the condenser, where it radiates heat and condenses. The heat released during condensation is transferred to the water in the heat storage tank, resulting in a water shortage. The liquefied working fluid is sent to the working fluid reservoir through a portion that communicates the condenser d3L in the working fluid circulation circuit with the working fluid reservoir. Furthermore, the gaseous working fluid that has flowed into the working fluid reservoir from the force generator radiates heat to the working fluid in the working fluid reservoir and liquefies. By repeating such an operation, the heat obtained in the evaporator is transferred to water etc. via the latent heat of phase change of the working fluid, and this is heated. As mentioned above, according to the heat transport system of the present invention, it is possible to transport heat by heating the working fluid in the pressure generator. is not required, and reliability is also increased. Moreover, even if the heat radiating part is located at one side of the heat receiving part Ij, smooth heat transport can be performed. This invention will be described below with reference to embodiments shown in the drawings. The drawings show a case where the heat transport system according to the present invention is used as a solar heating system. A solar hot water supply system consists of an evaporator (1) consisting of a solar heat collector placed at a high outdoor location such as on the roof, and a working fluid reservoir (1) consisting of a tank placed below the evaporator (1).
2), and an Etliii vessel (3) placed at an intermediate height between the evaporator (1) and the working fluid reservoir (2), the working fluid reservoir (2), and the evaporator (1). Pumping liquid path (4) that communicates with
, a gaseous working fluid supply path (5) that connects the evaporator (1) and the condenser (3), and a working fluid reservoir (2) that connects the condenser (3) with the working fluid reservoir (2).
) and a liquid downfall path (6) that communicates with the evaporator (1) to form a closed hydraulic fluid circulation circuit (7) in which the working fluid is sealed.
A pressure generator (9) is disposed at approximately the same height as the evaporator (1) between the evaporator (1) and the working fluid reservoir (2), and the evaporator (1) and pressure generator (9) are operated. The pressure generator (9) and the working fluid reservoir (2) are communicated through a pressurizing path (11). The condenser (3) is equipped with a coiled pipe (12) inside thereof, and the gaseous working fluid sent from the evaporator (1) through the gaseous working fluid supply path (5) is passed through the coil. It is cooled and condensed by the water flowing inside the shaped vibrator (12). The heat released during condensation is transferred to the cold water, which heats up the temperature of the hot water by 1η. One end of the liquid pumping path (4) enters the working liquid reservoir (2) and opens at the bottom thereof, and the other end is connected in communication with the upper end of the evaporator (1). One end of the gaseous working fluid supply path (5) is connected in a continuous manner to the upper end of the evaporator (1), and the other end is connected in a continuous manner to the top wall of the condenser (3). Also,
The internal pressure of the condenser (3) and the internal pressure of the working fluid reservoir (2) are connected between the part of the gaseous working fluid supply path (5) near the condenser (3) and the working fluid reservoir (2). A pressure equalizing passage (13) is provided to equalize the pressure. One end of the pressure equalization passage (13>) is connected in a continuous manner to the lower end of the gaseous working fluid supply path (5), and the other end is connected in a continuous manner to the top wall of the working fluid reservoir (2). In addition, the pressure equalization path (13) is provided with a float valve (14).The upper end of the liquid drop path (6) is connected to the lower end of the condenser (3) in a communicating manner, and the lower end is connected to the working fluid reservoir. It is connected to the top wall of the section (2) in a communicating manner.It is also connected to the top wall of the liquid downflow path (6) above the working liquid reservoir section (2) and above the float valve (14). A check valve (15) is installed in the lower position. The pressure generator (9) is made of a solar heat collector and is placed on the roof or the like.The working fluid supply path (10) has one end connected to the evaporator ( 1), and the other end is connected to the lower end of the pressure generator (9) in a communicating manner.The IC1 hydraulic fluid supply path (10) is also provided with a check valve (16). The check valve (16) allows the hydraulic fluid to flow only from the evaporator (1) to the pressure generator (9). Gaseous hydraulic fluid supply path (
5) A pressure equalizing passage (18) is provided which equalizes the pressure between the upper end and the lower end of the evaporator (1). One end of the pressurizing passage (11) is The upper end of the pressure generator (9) is connected in a communicating manner, and the other end is connected in a communicating manner to the lower end of the peripheral wall of the working fluid reservoir (2). A solenoid valve (17) is installed that remains closed until the steam pressure in the vessel (9) reaches a predetermined pressure, opens only when the predetermined pressure is reached, and closes when the steam pressure drops again. In this embodiment, the above-mentioned predetermined pressure means that the working fluid is pumped into the working fluid reservoir (2) to maintain the vapor pressure in the upper part of the evaporator (1).
This applies the pressure necessary to fry the liquid from the top to the top of the liquid lifting path (4). After the system is evacuated, the working fluid is transferred to the evaporator (1).
and into a pressure generator (9). The m of the hydraulic fluid is
The quantities are such that during operation of the heat transport system, the evaporator (1) and the pressure generator (9) are never empty. In such a solar heating system, first the working fluid in the evaporator (1) is heated by solar heat and vaporized, and the gas prototype/premier is passed through the gaseous working fluid supply path (5) to the condenser ( 3) Sent within. The cold water flowing through the coiled pipe (12) liquefies the liquid, and the liquefied working fluid flows into the working fluid reservoir (2) through the downflow path (6). The surface is located above the lower end frontage of the liquid pumping path (4). When the working fluid in the pressure generator (9) is heated and vaporized by solar heat, the vapor pressure in the pressure generator (9) increases. When this vapor pressure reaches a predetermined pressure, the high-pressure gaseous hydraulic fluid is sent through the solenoid valve (17) through the pressurizing path (11) into the hydraulic fluid reservoir (2). . Then, the float is pushed up and the float valve (14) is closed, and the check valve (15) is closed and the condenser (3) is closed.
) to the hydraulic fluid reservoir (2) is stopped. As a result, the hydraulic fluid accumulated in the hydraulic fluid reservoir (2) is sent into the evaporator (1) through the liquid pumping path (4), and also passes through the hydraulic fluid supply path (10) to the pressure generator. (9). The gaseous hydraulic fluid sent into the hydraulic fluid reservoir (2) remains within the hydraulic fluid reservoir (2). When the liquid level in the working liquid reservoir (2) falls and reaches below the lower end of the liquid pumping path (4>), the steam pressure in the pressure generator (9) falls below a predetermined pressure, and the solenoid valve (17) ) closes.Meanwhile, the gaseous hydraulic fluid generated within the pressure horn generator (9) closes.
), the working fluid in the evaporator (1) is heated by solar heat and vaporized, and this gaseous working fluid passes through the gaseous working fluid supply path (5) to the condenser. (3
), the water radiates heat to the water flowing in the coiled pipe (12) and condenses. The water in the coiled pipe (12) is heated by the heat released when the gaseous working fluid condenses. In this way, drought water is obtained, and this drought water is used for hot water supply, space heating, etc. The solenoid valve (17) closes and the pressure generator (9)
When the supply of gaseous hydraulic fluid into the hydraulic fluid reservoir (2) is stopped and the liquid level in the hydraulic fluid reservoir (2) becomes lower than the lower end of the liquid pumping path (4), the hydraulic fluid stops flowing into the hydraulic fluid reservoir (2). The pressure in the reservoir (2) decreases and the float valve (14) opens.As a result, the pressure equalization path (
13) to reduce the pressure in the working fluid reservoir (2) and the condenser (3).
) is equalized, the check valve (15) operates, and the hydraulic fluid liquefied in the condenser (3) is sent to the hydraulic fluid reservoir (2). The gaseous working fluid sent from the pressure horn generator (9) to the working fluid reservoir (2) radiates heat to the working fluid flowing into the working fluid reservoir (2) from the condenser (3) and condenses. . Then, the liquid level of the hydraulic fluid in the hydraulic fluid reservoir (2) reaches the liquid pumping path 4)
above the lower end opening of the pressure generator (9)
When the internal pressure reaches a predetermined pressure, the same operation as above is performed. This kind of action is repeated, and the solar heat is
It is transferred to the water via the latent heat of the phase change of the working fluid. In the above embodiments, a solar heat collector is used as the pressure generator, but the pressure generator is not limited to this, and a pressure generator heated by an electric heater, gas heater, etc. may also be used. Further, in the above embodiments, the case where the heat transport system of the present invention is applied to a solar heat supply system is shown, but the present invention is not limited to this, and the heat transport system can also be applied to an exhaust heat recovery system. In this case, the working fluid in the evaporator (1) is heated by exhaust heat. Furthermore, the heat transport system of the present invention is applicable to other systems. Further, in the above embodiment, the condenser is disposed below the evaporator, and the working fluid reservoir is disposed below the condenser; however, the present invention is not limited to this. , the condenser and the working fluid reservoir, or the three may be arranged at the same height. 4. Brief description of the drawings The drawings are circuit diagrams of a solar hot water supply system showing an embodiment of the present invention. (1)...Evaporator, (2)...Working fluid reservoir, (3)
... Condenser, (7) ... Closed hydraulic fluid circulation circuit in which the working fluid is sealed, (9) ... Pressure generator, (10) ...
... Hydraulic fluid supply path, (11) ... Pressure path, (17)
··solenoid valve. 4 people other than the above

Claims (1)

[Claims] An evaporator (1), a condenser (3) located at a height below the evaporator (1), and a working fluid reservoir (2) located at a height below the condenser (3). A closed hydraulic fluid circulation circuit (7) connected via a conduit and with hydraulic fluid sealed inside.
A pressure generator (9) is arranged between the evaporator (1) and the working fluid reservoir (2), and the evaporator (1) and the pressure nozzle generator (9) supply working fluid. connected by the road (10),
The pressure generator (9) and the working fluid reservoir (2) are connected to the pressurizing path (11).
), and the pressurizing path (11) is provided with a valve <17>.