초록 ▼

A chemical heat pump utilizing a hydrating agent as the working fluid is disclosed. The clathrate formation reaction of a hydrating agent such as flon 31 or 22 is used as one of the two equilibrium reactions of the working fluid so that heat can be pumped up across a temperature difference greater t

A chemical heat pump utilizing a hydrating agent as the working fluid is disclosed. The clathrate formation reaction of a hydrating agent such as flon 31 or 22 is used as one of the two equilibrium reactions of the working fluid so that heat can be pumped up across a temperature difference greater than that between the two heat sources. The heat pump comprises four container means in which reactions take place so that the regeneration process can be effected simultaneously with the heating or refrigerating process in which the temperature of the thermal medium to be utilized, e.g., water, is raised or lowered. The working fluid flows either in continuous one-directional circulation through the four container means, or in alternate directions therebetween. In addition to the two heat sources at two different temperatures, such as waste heat and open air, the heat pump further comprises gas pipes which allow the free movement of the working fluid between the connected container means.

대표청구항 ▼

A chemical heat pump for raising a temperature of a thermal medium, comprising: a first heat source; a second heat source at a temperature lower than a temperature of said first heat source; a hydrating agent forming a gas hydrate by clathrate formation reaction with water; first container means for

A chemical heat pump for raising a temperature of a thermal medium, comprising: a first heat source; a second heat source at a temperature lower than a temperature of said first heat source; a hydrating agent forming a gas hydrate by clathrate formation reaction with water; first container means for containing and placing the gas hydrate of the hydrating agent in thermal contact with the first heat source, thereby decomposing the gas hydrate into water and gas phase hydrating agent, the hydrating agent absorbing a portion of heat of reaction of gas hydrate decomposition; first gas conveying means for conveying the gas phase hydrating agent substantially at the pressure at which the gas hydrate is decomposed in said first container means; second container means connected to said first gas conveying means, for containing and placing said gas phase hydrating agent conveyed by said first gas conveying means in thermal contact with the thermal medium under an equilibrium reaction substantially at a pressure at which the hydrating agent is conveyed by the first gas conveying means, and at a temperature higher than the temperature of the first heat source, the hydrating agent releasing a heat of reaction of said equilibrium reaction, thereby heating the thermal medium to a temperature higher than the temperature of the first heat source, the heat of reaction of said equilibrium reaction being less than a heat of reaction of clathrate formation reaction of the hydrating agent; third container means for containing and placing material formed in said equilibrium reaction in said second container means in thermal contact with said first heat source at a pressure lower than the pressure of the equilibrium reaction, thereby evolving the gas phase hydrating agent; second gas conveying means for conveying the hydrating agent evolved in said third container means substantially at a pressure at which the hydrating agent is evolved; and fourth container means connected to said second gas conveying means, for containing and placing the hydrating agent in thermal contact with the second heat source substantially at a pressure at which the hydrating agent is conveyed by said second gas conveying means, the hydrating agent being in contact with water and forming the gas hydrate by the clathrate formation reaction.