Heat pump and cooling power generation method

Patent metadata

Field	Value
Publication number	US-10309694-B2
Application number	US-201615057690-A
Country	US
Kind code	B2
Filing date	Mar 1, 2016
Priority date	Mar 3, 2015
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

An adsorption heat pump includes: an evaporator/condenser including a section that evaporates a first heat exchange-medium and pipe through which a second heat exchange-medium flows; first adsorption devices, each including an adsorption-section in which the first heat exchange-medium that has been evaporated reacts and retains the first heat exchange-medium, and pipe through which the second heat exchange-medium flows; and second adsorption device in which first heat exchange-medium that has been released from the first adsorption devices reacts and retains the first heat exchange-medium. The adsorption-section of the first adsorption device in a state reacting with the first heat exchange-medium is in communication with the evaporator/condenser section, and the adsorption-section of the first adsorption device is in a state having adsorbed the first heat exchange-medium is in communication with the second adsorption device adsorption-section, and the first adsorption device pipe is connected to the evaporator/condenser pipe in series, thereby generating cooling.

First claim

What is claimed is:

1. A heat pump comprising:
an evaporator/condenser including an evaporation section that evaporates a first heat exchange medium and including a flow section through which a second heat exchange medium flows, wherein the evaporator/condenser is also configured to condense the first heat exchange medium;
a plurality of first reactors, each including a reaction section in which the first heat exchange medium that has been evaporated in the evaporator/condenser reacts and that retains the first heat exchange medium, and including a flow section through which the second heat exchange medium flows;
a second reactor in which the first heat exchange medium, which has been released from the first reactors, reacts and that retains the first heat exchange medium; and
a switching section comprising a controller and a valve driver that, in a case in which the reaction section of one or more of the first reactors is placed in communication with the evaporation section of the evaporator/condenser, places the reaction section of another of the first reactors in communication with the second reactor, and connects the flow section of the other first reactor that has been placed in communication with the second reactor in series with the flow section of the evaporator/condenser.

2. The heat pump of claim 1 , wherein the plurality of first reactors are disposed in parallel between the evaporator/condenser and the second reactor.

3. The heat pump of claim 1 , wherein the first heat exchange medium is water or ammonia, and a reactant exhibiting a reaction amount with the first heat exchange medium of 70% or more of a total reaction capacity within a relative ratio range of vapor pressure from 0.1 to 0.9 is employed as a reactant of the reaction sections of the first reactors.

4. The heat pump of claim 3 , wherein a reactant that achieves an equilibrium pressure or a pressure lower than the equilibrium pressure, the equilibrium pressure being a pressure at which 70% or more of the total reaction capacity of the reactant in the first reactors can react, at a cooling power generation temperature of the first reactors of from 0° C. to 25° C., is employed as a reactant of the second reactor.

5. The heat pump of claim 1 , wherein the switching section places the second reactor, which is in a state of retaining the first heat exchange medium, in communication with the evaporation section of the evaporator/condenser through the first reactors, or through a bypass pipe bypassing the first reactors.

6. A cooling power generation method, comprising:
providing an evaporator/condenser including an evaporation section that evaporates a first heat exchange medium and including a flow section through which a second heat exchange medium flows, wherein the evaporator/condenser is also configured to condense the first heat exchange medium;
providing a plurality of first reactors, each including a reaction section in which the first heat exchange medium that has been evaporated in the evaporator/condenser reacts and that retains the first heat exchange medium, and including a flow section through which the second heat exchange medium flows;
providing a second reactor in which the first heat exchange medium, which has been released from the first reactors, reacts and that retains the first heat exchange medium; and
when the reaction section of one or more of the first reactors is placed in communication with the evaporation section of the evaporator/condenser, placing the reaction section of another of the first reactors in communication with the second reactor, and connecting the flow section of the other first reactor that has been placed in communication with the second reactor in series with the flow section of the evaporator/condenser.

7. The cooling power generation method of claim 6 , wherein the plurality of first reactors are disposed in parallel between the evaporator/condenser and the second reactor.

8. The cooling power generation method of claim 6 , wherein the first heat exchange medium is water or ammonia, and a reactant exhibiting a reaction amount with the first heat exchange medium of 70% or more of a total reaction capacity within a relative ratio range of vapor pressure from 0.1 to 0.9 is employed as a reactant of the reaction sections of the first reactors.

9. The cooling power generation method of claim 8 , wherein a reactant that achieves an equilibrium pressure or a pressure lower than the equilibrium pressure, the equilibrium pressure being a pressure at which 70% or more of the total reaction capacity of the reactant in the first reactors can react, at a cooling power generation temperature of the first reactors of from 0° C. to 25° C., is employed as a reactant of the second reactor.

10. The cooling power generation method of claim 6 , further comprising:
placing the second reactor, which is in a state of retaining the first heat exchange medium, in communication with the evaporation section of the evaporator/condenser through the first reactors, or through a bypass pipe bypassing the first reactors.

Assignees

• Toyota Chuo Kenkyusho Kk
• Toyota Motor Co Ltd

Inventors

• Hirota Yasuki
• Yamauchi Takafumi
• Iwata Ryuichi
• Shimazu Takashi
• Morita Masaki
• Orihashi Manabu

Classifications

• F25B49/046

  Operating intermittently · CPC title

• F25B17/083 Primary

  with two or more boiler-sorbers operating alternately · CPC title

• F25B41/04

  Mechanical Engineering · mapped topic

• Y02B30/64

  Cross-Sectional Technologies · mapped topic

• Y02A30/278

  Cross-Sectional Technologies · mapped topic