JPS61125550A - Cold and heat accumulating system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a cold heat storage system, and particularly to a cold heat storage system that uses gas clathrate produced by combining a host agent and a guest agent as a cold heat storage agent.

(Prior Art) An example of a conventional cold storage heat storage system using water as a cold storage heat agent is shown in FIG. 2, and includes a refrigerant compressor (3), a condenser (5),
A cold storage cycle is constructed by connecting a throttling device (6) such as an expansion valve and an input heat exchange coil (8) disposed within the cold storage heat tank (input) with refrigerant piping so that the refrigerant circulates in this order. The antifreeze circulation pump (2), the user side heat exchanger (10), the JL expansion tank (11), and the output heat exchange coil C9) installed in the cold storage heat tank (7) are pumped in this order. A cooling cycle is constructed by connecting them with antifreeze piping so that the water circulates. The outside of the pipe of the input and output heat exchange coil (81 (9) in the cold storage heat tank (inside) is filled with water as a cold storage heat agent. (1)
is a fan for blowing air to the user-side heat exchanger (10), (
4) is a condenser (77 inches for blowing 51K air).

During cold storage heat operation, the fan (1) and circulation pump (2) are stopped, the cooling cycle operation is stopped, and the refrigerant compressor (3) is stopped.
) and fan (4) to operate the cold storage cycle. Then, the refrigerant gas compressed by the compressor (3) is condensed in the condenser (5). Next, the expansion valve (6
)K enters and expands adiabatically and then reaches the input heat exchange coil (8) where it evaporates and absorbs the heat of the surrounding cold storage heat agent (g). In this way, ice is generated in the cold storage tank (7) and cold heat is stored. During cooling heat dissipation operation, the operation of the cold storage cycle is stopped, and the antifreeze cooled by the surrounding ice by the fan (1) and circulation bong exchange coil (9) is transferred to the circulation pump (
2), it is sent to the user-side heat exchanger (1G), where it radiates heat and is then cooled again by melting the ice surrounding the expansion tank (11).

(Problems to be Solved by the Invention) In the above-mentioned conventional system, ice forms hard crystals in the cold storage heat tank (forced) and adheres to the surface of the input heat exchange coil (8), reducing the heat transfer coefficient. Input heat exchange coil (8)
Ice was formed only in the vicinity of the cold storage tank (7), and it was difficult to form ice all over the inside of the cold storage heat tank (7).

(Means for Solving the Problems) The present invention was invented to solve the above problems, and the gist of the first invention is that In a cold storage heat system using gas clathrate as a cold storage heat agent, a cold storage cycle is configured by a cold storage heat tank, a compressor, a condenser, and a throttle device, and a guest agent in the cold storage heat tank is circulated through the cold storage cycle, The cold storage heat system is characterized in that gas clathrate is generated by direct evaporation in a host agent in the cold storage heat tank. Further, the gist of the second invention is to provide a cold storage heat tank, a compressor, a condenser, and a throttling device in a cold storage heat system using gas clathrate produced by the combination of a host agent and a guest agent as a cold storage heat agent. A cold storage cycle is configured, and the guest agent in the cold storage heat tank is circulated through the cold storage cycle, and is directly evaporated in the host agent in the cold storage heat tank to generate gas clathrate. A cold storage device comprising a pump, a heat exchanger on the user side, and a throttling device to form a cooling cycle, in which the guest agent or a slurry of the guest agent and gas clathrate is directly circulated and cooled. In the heat system.

(Example) This constitutes a cold storage cycle.

(17) is a circulation pump, (19) is a user-side heat exchanger, (
20) is a throttle device such as an expansion valve, (21) is a cold storage heat tank (1
3) a spray nozzle disposed in the gas region in the tank, (18) a filter immersed in the liquid in the cold storage tank (13);
These (17), (19), (20), (21)
, (13), and (18) are connected in this order with four prompters to form a cooling cycle. Cold storage heat tank (1
3) Inside is water as a host agent.

70. as a guest agent. is stored.

The circulation pump (17) must be stopped during cold storage heat operation.
Therefore, by stopping the operation of the cold release cycle and starting the compressor (12), the cold storage cycle is operated. Then, fluorocarbon gas is taken out from the gas region of the cold storage heat tank (13) via the rectifier (14) and compressed by the compressor (12). The compressed fluorocarbon gas enters the condenser α9, where it condenses to become a fluorocarbon liquid, enters the throttling device (16), expands adiabatically, and enters the cold storage heat tank αJ. Then, it combines with water as a host agent in the cold storage heat tank (13) to generate gas clathrate, and the latent heat of the guest agent, that is, fluorocarbon, which is used to generate the gas clathrate, is stored in the cold storage heat tank (13). It will be done.

During cooling heat radiation operation, the compressor (15) is stopped to stop the operation of the cold storage cycle, and the circulation pump (17) is started to operate the cooling cycle. Cold storage heat 4' by circulation pump (17)! The cooled fluorocarbon liquid in (13) is taken out through the filter (18) and sent to the user-side heat exchanger α9, where it is allowed to cool. After being left to cool, the Freon liquid passes through a squeezing device (20) and is transferred from a spray nozzle (21) to a cold storage heat tank (1).
3) Make it squirt inside. Then, this fluorocarbon liquid exchanges heat with the gas clathrate in the cold storage heat tank (13) and evaporates, and the gas clathrate absorbs heat and decomposes, thereby cooling the circulating fluorocarbon liquid.

Note that instead of circulating the fluorocarbon solution, a slurry of the fluorocarbon solution and gas clathrate may be circulated.

(Operations and Effects of the Invention) In the present invention, in a cold storage heat system that uses gas clathrate produced by the combination of a host agent and a guest agent as a cold storage heat agent, a cold storage heat storage tank, a compressor, a condenser, and a throttling device are used to store cold heat. The guest agent in the cold storage heat tank is circulated through the cold storage cycle, and the guest agent in the cold storage heat tank is directly evaporated in the host agent to generate gas clathrate. The input heat exchange coil can be omitted. Therefore, gas clathrate can be generated throughout the cold storage heat tank, and the conventional drawback that ice or gas clathrate is generated only around the input heat exchange coil can be overcome.

Further, in the present invention, in a cold storage heat system using a gas clathrate produced by the combination of a host agent and a guest agent as a cold heat storage agent, a cold storage cycle is configured by a cold storage heat tank, a compressor, a condenser, and a throttle device, The guest agent in the cold storage heat tank is circulated through the cold storage cycle, and is directly evaporated in the host agent in the cold storage heat tank to generate gas clathrate, and the cold storage heat tank and circulation YD pump utilization side heat exchanger. A cooling cycle is constructed using a cooling device and a throttling device, and the guest agent or a slurry of the guest agent and gas clathrate is directly circulated through the cooling cycle and cooled. Since the coil can be omitted and the guest agent or a slurry of the guest agent and the gas clathrate is directly circulated during the cooling operation, the heat exchanger on the user side can be downsized.

[Brief explanation of drawings]

FIG. 1 is a system diagram showing an embodiment of the present invention, and FIG. 2 is a system diagram showing an example of a conventional cold storage heat system. Cold storage heat tank...(13), Compressor...(12), Condenser...(15), Throttle device...(16), Circulation pump...(17), User side heat exchange Container...(19), Squeezing device...(20) Sub-agents: 3 patent attorneys and non-Kaimoto important documents

Claims (1)

[Scope of Claims] 1. In a cold storage heat system that uses gas clathrate produced by the combination of a host agent and a guest agent as a cold storage heat agent, a cold storage cycle is configured by a cold storage heat tank, a compressor, a condenser, and a throttle device. A cold storage heat system, characterized in that the guest agent in the cold storage heat tank is circulated through the cold storage cycle and directly evaporated in the host agent in the cold storage heat tank to generate gas clathrate. 2. In a cold storage system that uses gas clathrate produced by the combination of a host agent and a guest agent as a cold storage agent, a cold storage cycle is configured by a cold storage tank, a compressor, a condenser, and a expansion device, and The guest agent is circulated through the cold storage cycle and directly evaporated in the host agent in the cold storage heat tank to generate gas clathrate, which is also radiated by the cold storage heat tank, circulation pump, user-side heat exchanger, and throttling device. 1. A cold storage heat system comprising a cold cycle, in which the guest agent or a slurry of the guest agent and gas clathrate is directly circulated and cooled.