Arrangement, particularly refrigerating machine or heat pump

Abstract

An arrangement may comprise a first and second heat tank, a thermochemical reactor that is thermally and fluidically connected to the heat tank, a heat transfer fluid circuit containing a heat transfer fluid for transporting heat between the two heat tanks and the thermochemical reactor, a temporary heat store arranged in the heat transfer fluid circuit for the temporary storage of the heat transfer fluid. The temporary heat store may be designed to receive the heat transfer fluid at two different temperature levels. The temporary heat store may include a first partial store with variable storage space and a second partial store with variable storage space.

1 . A system for an arrangement of a refrigerating machine or a heat pump, comprising:
 a first heat reservoir acting as a heat source and with a second heat reservoir acting as a heat sink,   at least one thermochemical reactor configured to be thermally and fluidically connected to the heat reservoirs,   a heat transfer fluid circuit, in which a heat transfer fluid is arranged to transport heat between the two heat reservoirs and the at least one thermochemical reactor,   a temporary heat store arranged in the heat transfer fluid circuit for temporarily storing the heat transfer fluid,   wherein the temporary heat store is designed to hold the heat transfer fluid with two different stratified temperature distributions between the temperatures of the heat reservoirs (T 1 , T 2 ), and, for this purpose, the temporary heat store has a first partial store with a variable storage volume and has a second partial store with a variable storage volume that is thermally and fluidically separated from this,   at least one, preferably two conveying device(s) available in the heat transfer fluid circuit to propel the heat transfer fluid (F) in the heat transfer fluid circuit,   a valve system available in the heat transfer fluid circuit, which comprises at least one adjustable valve device, by which the heat transport between the two heat reservoirs, the thermochemical reactor and the temporary heat store can be controlled by the heat transfer fluid,   a regulating/control system for controlling the valve system.   
     
     
         2 . The system according to  claim 1 , at least two thermochemical reactors are available, which each comprise a separate housing, a fluid inlet, and a fluid outlet, wherein the at least two thermochemical reactors are fluidically connected to each other in parallel. 
     
     
         3 . The system according to  claims 1 , wherein the valve system comprises a first adjustable valve device for each available thermochemical reactor, by which the fluid inlet of the respective thermochemical reactor can be optionally connected to the first or the second heat reservoir, and
 the valve system comprises a second adjustable valve device for each available thermochemical reactor, by which the fluid outlet of the respective thermochemical reactor can be optionally connected to the first or the second heat reservoir.   
     
     
         4 . The system according to one of the  claim 1 , wherein the regulation/control device is set up or programmed for the time-delayed adjustment of the individual first valve devices and for the time-delayed adjustment of the individual second valve devices. 
     
     
         5 . The system according to  claim 1 , further comprising an equalizing reservoir arranged in the heat transfer fluid circuit to hold the heat transfer fluid. 
     
     
         6 . The system according to  claim 1 , wherein the first valve devices and the second valve device are each designed as a 3/2-way switching valve. 
     
     
         7 . The system according to  claim 6 , wherein at least a 3/2-way valve is designed as an automatically switching valve. 
     
     
         8 . The system according to  claim 1 , wherein the temporary heat store is fluidically connected in parallel with the second valve directions so that the fluid inlet of the first heat reservoir fluidically communicates with the first partial store and the fluid inlet of the second heat reservoir fluidically communicates with the second partial store. 
     
     
         9 . The system according to  claim 1 , wherein the temporary heat store is designed to simultaneously hold and output a first and a second fluid mass of the heat transfer fluid, and
 wherein both fluid masses have different temperature levels or temperature stratifications.   
     
     
         10 . The system according to  claim 1 , wherein the first partial store of the temporary heat store is fluidically connected to the first heat reservoir and the second partial store of the temporary heat store is fluidically connected to the second heat reservoir. 
     
     
         11 . The system according to  claim 1 , wherein the volume-variable first partial store is designed to be complementary to the volume-variable second partial store so that the overall volume formed by the two partial stores is constant. 
     
     
         12 . The system according to  claim 1 , wherein the temporary heat store is designed as a reservoir, wherein the reservoir comprises:
 a housing, in the interior space of which a separation element is movably arranged, which divides the interior space into a volume-variable first partial store and a second partial store, which is also volume-variable and their medically insulated from the first partial store,   a first through-opening available in the housing for introducing and discharging a heat transfer fluid with a first temperature level or a temperature stratification subsequent to it into or out of a first partial store, and   a second through-opening available in the housing for introducing and discharging a heat transfer fluid with a second temperature level or a temperature stratification subsequent to it into or out of a second partial store,   wherein the volume-variable first partial store is designed to be complementary to the volume-variable second partial store so that the overall volume formed by the two partial stores is constant.   
     
     
         13 . The system according to  claim 12 , wherein a first sensor element is provided on the first through-opening, by which, it can be determined whether the separation element is located in a first end position, in which the separation element has a minimum distance away from the first through-opening and/or that a second sensor element is provided on the second through-opening, by which, it can be determined whether the separation element is located in a second end position, in which the separation element has a minimum distance away from the second through-opening. 
     
     
         14 . The system according to  claim 13 , wherein an operating state can be set by the regulation/control device in the at least one adjustable valve device of the valve system, in which the heat transfer fluid circuit forms a first partial circuit and in which the heat transfer fluid transports heat between the thermochemical reactor and the second heat reservoir so that heat is transferred from the thermochemical reactor into the second heat reservoir. 
     
     
         15 . The system according to  claim 14 , wherein, in the operating state, the first partial store has a maximum volume and the second partial store has a minimum volume. 
     
     
         16 . The system according to  claim 1 , wherein an operating state can be set by the regulation/control device in the at least one adjustable valve device of the valve system where, in which the heat transfer fluid circuit forms a second partial circuit, in which the heat transfer fluid transports heat between the thermochemical reactor and the first heat reservoir so that heat is transferred from the first heat reservoir into the thermochemical reactor. 
     
     
         17 . The system according to  claim 16 , wherein, in the operating state, the second partial store has a maximum volume and the first partial store has a minimum volume. 
     
     
         18 . The system according to  claim 1 , wherein an operating state can be set by the regulation/control device in the at least one adjustable valve device of the valve system wherein:
 heat transfer fluid is transported from the first partial store into the first heat reservoir,   heat transfer fluid is transported from the first heat reservoir into the thermochemical reactor, and   heat transfer fluid is transported from the thermochemical reactor into the second partial store.   
     
     
         19 . The system according to  claim 1 , wherein an operating state can be set by the regulation/control device in the at least one adjustable valve device of the valve system, wherein:
 heat transfer fluid is transported from the second partial store into the second heat reservoir,   heat transfer fluid is transported from the second heat reservoir into the thermochemical reactor, and   heat transfer fluid is transported from the thermochemical reactor into the first partial store.   
     
     
         20 . A method to operate an arrangement of a heat transfer fluid circuit comprising:
 providing at least one thermochemical reactor, two heat reservoirs with different temperature levels (T 1 , T 2 ) and a temporary heat store, wherein the temporary heat store comprises two thermally and fluidically separated partial stores, in which a heat transfer fluid available in the heat transfer fluid circuit can be taken on being thermally a fluidically separated from one another;   supplying heat from the first heat reservoir into the thermochemical reactor by taking heat transfer fluid temporarily stored in the first partial store of the temporary heat store and supplying heat transfer fluid to the first heat reservoir and, at the same time, dissipating heat transfer fluid from the thermochemical reactor and introducing the heat transfer fluid into the second partial store of the temporary heat store; and   dissipating heat from the at least one thermochemical reactor into the second heat reservoir, by taking heat transfer fluid temporarily stored in the second partial store of the heat transfer fluid and supplying heat transfer fluid to the second heat reservoir and, at the same time, dissipating heat transfer fluid from the thermochemical reactor and introducing heat transfer fluid into the first partial store of the temporary heat store.   
     
     
         21 . The method according to  claim 20 , wherein at least two thermochemical reactors are available, which each comprise a separate housing, a fluid inlet, and a fluid outlet, wherein the at least two thermochemical reactors are fluidically connected to each other in parallel,
 the valve system comprises a first adjustable valve device for each available thermochemical reactor, by which the fluid inlet of the respective thermochemical reactor can be optionally connected to the first or the second heat reservoir,   the valve system comprises a second adjustable valve device for each available thermochemical reactor, by which the fluid outlet of the respective thermochemical reactor can be optionally connected to the first or the second heat reservoir,   wherein, in accordance with switching the first existing valve devices to connect the thermochemical reactors to the first or the second heat reservoir takes place in a time-delayed manner, and   wherein, in accordance with switching the first existing valve devices to connect the thermochemical reactors to the first or the second heat reservoir takes place in a time-delayed manner.   
     
     
         22 . The method according to  claim 21 , wherein the time-delayed switching of the first and the second valve devices takes place in such a way that at least one of the thermochemical reactors and a maximum of two of the available thermochemical reactors simultaneously have the temperature level of the first heat reservoir.