CN216204498U - Refrigerating system with heat recovery mode switching function - Google Patents
Refrigerating system with heat recovery mode switching function Download PDFInfo
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- CN216204498U CN216204498U CN202122705972.9U CN202122705972U CN216204498U CN 216204498 U CN216204498 U CN 216204498U CN 202122705972 U CN202122705972 U CN 202122705972U CN 216204498 U CN216204498 U CN 216204498U
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Abstract
The utility model discloses a refrigeration system with heat recovery mode switching, which relates to the technical field of refrigeration systems and solves the problem that a common refrigeration system cannot be switched between an indoor heat recovery mode and an outdoor heat recovery mode so as to not meet the requirements of multiple working conditions of a laboratory, and the technical scheme is characterized by comprising the following steps: the system comprises a compressor, a condenser, a refrigerant container, a heat exchange device and a switch assembly; the heat exchanger is connected between the output end of the condenser and the input end of the refrigerant container; the switch component comprises a first interface, a second interface and a third interface, the first interface is connected with the other interface of the heat exchange device, the second interface is connected with the compressor, and the third interface is connected with the refrigerant container, so that the purposes of automatically distributing outdoor heat supply during indoor refrigeration and indoor heat supply during outdoor refrigeration according to the working condition requirements of an air-conditioning laboratory during use are achieved, the operation energy consumption of a refrigeration system can be greatly reduced, and the purpose of conveniently switching indoor or outdoor side heat recovery modes can be realized.
Description
Technical Field
The utility model relates to the technical field of refrigeration systems, in particular to a refrigeration system with heat recovery mode switching.
Background
The existing air-conditioning laboratory generally comprises an indoor test space and an outdoor test space, the indoor space and the outdoor space are generally respectively provided with an independent refrigerating system, and when the air-conditioning laboratory is used, the indoor refrigerating machine and the outdoor refrigerating machine are required to be started, so that the running energy consumption of the laboratory is higher.
However, when a cold supply related test is performed on one indoor side and a heat supply related test is performed on one outdoor side, heat generated after the indoor heat exchanger finishes heat exchange work is directly wasted without being utilized, and heat needs to be supplied again to the outdoor side through a refrigerating system; therefore, the existing air-conditioning laboratory refrigeration system has the unfavorable conditions that the heat exchange between the indoor and outdoor air-conditioning laboratory refrigeration system cannot be conveniently switched to heat the other side by using the heat exchanged between the indoor and outdoor air-conditioning laboratory refrigeration system, the running energy consumption of the air-conditioning laboratory is high, and the like, and the requirements of various working conditions of the laboratory cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a refrigeration system with heat recovery mode switching, which can automatically distribute outdoor heat supply during indoor refrigeration and indoor heat supply during outdoor refrigeration according to the working condition requirements of an air-conditioning laboratory during use, can greatly reduce the operation energy consumption of the refrigeration system, and can realize convenient switching of indoor or outdoor side heat recovery modes.
The technical purpose of the utility model is realized by the following technical scheme: a refrigeration system with heat recovery mode switching, comprising: the system comprises a compressor, a condenser, a refrigerant container, a heat exchange device and a switch assembly;
the compressor, the condenser and the refrigerant container are sequentially connected in a circulating manner;
one interface of the heat exchange device is connected between the output end of the condenser and the input end of the refrigerant container;
the switch assembly comprises a first interface, a second interface and a third interface, the first interface is connected with the other interface of the heat exchange device, the second interface is connected with the output end of the compressor, and the third interface is connected with the refrigerant container;
in a first state, the first interface and the second interface are connected, the third interface is closed, the refrigerant container, the compressor, the switch assembly and the heat exchanger are sequentially connected in a circulating manner to form a heat supply cycle, and the heat exchanger can supply heat;
and in a second state, the first interface and the third interface are switched on, the second interface is closed, the refrigerant container, the compressor, the condenser and the heat exchanger are sequentially connected in a circulating manner to form a cooling cycle, and the heat exchanger can supply cooling.
According to a further arrangement of the present invention, the switch assembly is a three-way valve, and the first port is a common port.
The utility model further comprises a second regulating valve which can control the pressure regulation of the condenser and is connected between the output end of the condenser and the input end of the refrigerant container.
The utility model further provides a pressure difference regulating valve which is connected between the output end of the condenser and the input end of the second regulating valve.
The utility model further comprises a third regulating valve which is connected between the output end of the refrigerant container and the input end of the compressor.
According to the further arrangement of the utility model, the number of the branches formed by the heat exchange device and the switch assembly is larger than one group, and the branches of each group can be independently switched.
The utility model further provides the following steps:
the first regulating valve is connected between the output end of the compressor and the input end of the refrigerant container;
the pressure sensor is arranged on the refrigerant container and can detect the pressure of the refrigerant container;
and a controller connected between the first regulating valve and the pressure sensor and capable of controlling the opening and closing amount of the first regulating valve.
According to a further arrangement of the utility model, the heat exchange device comprises an indoor heat exchanger and an outdoor heat exchanger, the first interface comprises an indoor heat exchange interface and an outdoor heat exchange interface, the second interface comprises a first valve and a second valve, and the third interface comprises a third valve and a fourth valve;
the first valve is connected between the output end of the compressor and the outdoor heat exchange interface;
the second valve is connected between the output end of the compressor and the indoor heat exchange interface;
the third valve is connected between the outdoor heat exchange interface and the refrigerant container;
the fourth valve is connected between the indoor heat exchange interface and the refrigerant container;
in a first state, when the first valve and the fourth valve are opened and the second valve and the third valve are closed, the refrigerant container, the compressor, the first valve and the outdoor heat exchange interface are sequentially and circularly connected to form a first heat cycle, the refrigerant container, the compressor, the condenser, the indoor heat exchange interface and the fourth valve are sequentially and circularly connected to form a first cold cycle, the outdoor heat exchanger can supply heat, and the indoor heat exchanger can supply cold;
in the second state, when the first valve and the fourth valve are closed and the second valve and the third valve are opened, the refrigerant container, the compressor, the second valve and the indoor heat exchange interface are sequentially connected in a circulating mode to form a second heat cycle, the refrigerant container, the compressor, the condenser, the outdoor heat exchange interface and the third valve are sequentially connected in a circulating mode to form a second cold cycle, the outdoor heat exchanger can supply cold, and the indoor heat exchanger can supply heat.
The utility model further provides the following steps:
the outdoor regulating valve is connected between the output end of the condenser and the outdoor heat exchanger;
and the indoor regulating valve is connected between the output end of the condenser and the indoor heat exchanger.
According to a further configuration of the utility model, the compressor is a variable-frequency compressor.
In conclusion, the utility model adopts a set of multi-mode switching refrigeration system, and can automatically distribute outdoor heat supply during indoor refrigeration and indoor heat supply during outdoor refrigeration according to the working condition requirement of an air-conditioning laboratory during use, thereby greatly reducing the operation energy consumption of the refrigeration system and realizing convenient switching of indoor or outdoor side heat recovery modes.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic view of the heat recovery mode of outdoor heating and indoor cooling according to the present invention;
FIG. 3 is a schematic view of the heat recovery mode of outdoor cooling and indoor heating according to the present invention;
FIG. 4 is a schematic view of the present invention in a cooling state both indoors and indoors;
fig. 5 is a schematic view of the present invention in a heating state both indoors and outdoors.
Reference numerals: 3. a switch assembly; 31. a first interface; 1. an outdoor heat exchange interface; 2. an indoor heat exchange interface; 32. a second interface; 33. a third interface; 41. a first valve; 42. a second valve; 43. a third valve; 44. a fourth valve; 45. a differential pressure regulating valve; 7. a heat exchanging device; 71. an outdoor heat exchanger; 72. An indoor heat exchanger; 81. an outdoor regulating valve; 82. an indoor regulating valve; 11. a compressor; 20. a condenser; 211. a first regulating valve; 212. a pressure sensor; 213. a controller; 22. a second regulating valve; 23. a third regulating valve; 25. a refrigerant container.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
A refrigeration system with heat recovery mode switching, as shown in fig. 1, comprising: the heat exchanger comprises a compressor 11, a condenser 20, a refrigerant container 25, a heat exchanger 7 and a switch assembly 3; the heat exchange device 7 comprises an indoor heat exchanger 72 and an outdoor heat exchanger 71; the indoor heat exchanger 72 is provided in an indoor portion of the laboratory, the outdoor heat exchanger 71 is provided in an outdoor portion of the laboratory, and the compressor 11 is an inverter compressor 11. The refrigerant container 25 is a fluorine tank.
One of the interfaces of the heat exchanging device 7 is connected between the output end of the condenser 20 and the input end of the refrigerant container 25. The switch assembly 3 comprises a first interface 31, a second interface 32 and a third interface 33, wherein the first interface 31 is connected with the other interface of the heat exchanger 7, the second interface 32 is connected with the output end of the compressor 11, and the third interface 33 is connected with the refrigerant container 25. In this embodiment, the switch component 3 may also be a three-way valve, and the first port 31 is a common port. The number of the branches formed by the heat exchange devices 7 and the switch assemblies 3 is larger than one group, and the branches of each group can be independently switched, namely, the two adjacent heat exchange devices 7 can respectively control cooling or heating through the corresponding switch assemblies 3.
In the first state, the first interface 31 and the second interface 32 are connected, the third interface 33 is closed, the refrigerant container 25, the compressor 11, the switch assembly 3 and the heat exchanger 7 are sequentially connected in a circulating manner to form a heat supply cycle, and the heat exchanger 7 can supply heat; in the second state, the first port 31 and the third port 33 are connected, the second port 32 is closed, the refrigerant container 25, the compressor 11, the condenser 20, and the heat exchanger 7 are sequentially connected in a circulating manner to form a cooling cycle, and the heat exchanger 7 can supply cooling.
Specifically, the first interface 31 includes an outdoor heat exchange interface 311 and an indoor heat exchange interface 312, the second interface 32 includes a first valve 41 and a second valve 42, and the third interface 33 includes a third valve 43 and a fourth valve 44.
In the present embodiment, the first valve 41, the second valve 42, the third valve 43, and the fourth valve 44 are all on-off valves.
The first valve 41 is connected between the output end of the compressor 11 and the outdoor heat exchange interface 311;
the second valve 42 is connected between the output end of the compressor 11 and the indoor heat exchange interface 312;
the third valve 43 is connected between the outdoor heat exchange interface 311 and the refrigerant container 25;
the fourth valve 44 is connected between the indoor heat exchange interface 312 and the refrigerant container 25;
the second regulating valve 22 is connected between the output end of the condenser 20 and the input end of the refrigerant container 25, and can control the pressure regulation of the condenser 20.
And a third regulating valve 23 connected between an output end of the refrigerant container 25 and an input end of the compressor 11.
The pressure difference adjusting valve 45 is connected to the output end of the condenser 20, and can be connected to the outdoor adjusting valve 81, the indoor adjusting valve 82, or the second adjusting valve 22, wherein the refrigerant flows out of the pressure difference adjusting valve 45, flows to the second adjusting valve 22, and finally flows back to the input end of the refrigerant container 25.
An outdoor regulating valve 81 connected between the output end of the condenser 20 and the outdoor heat exchanger 71;
and an indoor control valve 82 connected between the output end of the condenser 20 and the indoor heat exchanger 72.
A first regulating valve 211 connected between the output end of the compressor 11 and the input end of the refrigerant container 25; a pressure sensor 212 provided on the refrigerant container 25 and capable of detecting a pressure of the refrigerant container 25; the controller 213 is connected between the first regulator valve 211 and the pressure sensor 212, and can control the opening/closing amount of the first regulator valve 211.
This scheme adopts the refrigerating system of one set of multi-mode switching, can require outdoor heat supply when automatic allocation indoor refrigeration, indoor heat supply when outdoor refrigeration according to air conditioner laboratory operating mode when using to when realizing indoor or outdoor one side cooling, the opposite side then corresponds the heat recovery mode of carrying out the heat supply, but its greatly reduced refrigerating system's operation energy consumption.
This refrigerating system can include following categorised state at least through the switching of valves:
a first classification state: a heat recovery mode of outdoor heat supply and indoor cold supply;
the second classification state: a heat recovery mode of outdoor cooling and indoor heating;
the third classification state: indoor and outdoor are in cooling state at the same time;
the fourth classification state: indoor and outdoor are in heating state at the same time;
the method comprises the following specific steps:
the first classification state, heat recovery mode of outdoor heating and indoor cooling, as shown in fig. 2:
the opening state of each valve is as follows: in the second port 32, the first valve 41 is opened and the second valve 42 is closed; in the third port 33, the fourth valve 44 is opened and the third valve 43 is closed; it can be seen that the outdoor heat exchange port 311 in the first port 31 is communicated with the first valve 41 in the second port 32, and the indoor heat exchange port 312 in the first port 31 is communicated with the fourth valve 44 in the third port 33.
The refrigerant container 25, the third regulating valve 23, the compressor 11, the first valve 41, the outdoor heat exchanger 71 and the outdoor regulating valve 81 are sequentially connected in a circulating manner to form a first heat cycle connected in parallel with the condenser 20; the refrigerant container 25, the third regulating valve 23, the compressor 11, the condenser 20, the differential pressure regulating valve 45, the indoor regulating valve 82, the indoor heat exchanger 72 and the fourth valve 44 are sequentially connected in a circulating manner to form a first cooling cycle, wherein the outdoor heat exchanger 71 is in a heating state and the indoor heat exchanger 72 is in a cooling state.
The working process is as follows:
the refrigerant output from the gaseous region of the refrigerant container 25 flows to the input end of the compressor 11 after passing through the third regulating valve 23, and the refrigerant is divided into three parts after being compressed by the compressor 11 and flows to:
the first part, the refrigerant flows to the outdoor heat exchanger 71 after passing through the first valve 41, the refrigerant exchanges heat through the outdoor heat exchanger 71, then the condensed refrigerant flows through the outdoor regulating valve 81 for flow regulation, and then the refrigerant is merged with the liquid from the condenser 20;
the second part, the refrigerant flows back to the gaseous region of the refrigerant container 25 after passing through the first regulating valve 211;
and a third portion in which the refrigerant flows to an input side of the condenser 20, the condenser 20 outputs the condensed refrigerant, and the refrigerant is merged with the first portion refrigerant after passing through the differential pressure adjusting valve 45.
After the first part of refrigerant and the third part of refrigerant are converged, and then the first part of refrigerant and the third part of refrigerant are converged, and flow is adjusted by flowing to the indoor adjusting valve 82, then the indoor adjusting valve 82 outputs the refrigerant to the indoor heat exchanger 72, the refrigerant flows out after cooling heat exchange of the indoor heat exchanger 72, and flows back to the gas state area of the refrigerant container 25 after passing through the fourth valve 44; the other part of the remaining refrigerant passes through the second regulating valve 22 and then flows back to the gaseous region of the refrigerant container 25.
In the first classification state, the second heat exchanger 72 functions as an evaporator of the refrigeration system, which is capable of absorbing heat from the environment on the indoor side; and the first heat exchanger 71, as part of the condensing means in the refrigeration system, is able to provide heat to the environment on the outdoor side; through the combined utilization of the first heat exchanger 71 and the second heat exchanger 72, the extra investment of improving the room temperature on the outdoor side through an electric heating mode is reduced, and the heat recovery function is further realized.
The second classification state, heat recovery mode of outdoor cooling and indoor heating, as shown in fig. 3:
the opening state of each valve is as follows: in the second port 32, the first valve 41 is closed and the second valve 42 is opened; in the third port 33, the fourth valve 44 is closed and the third valve 43 is opened; it can be seen that the outdoor heat exchange interface 311 in the first interface 31 is in communication with the third valve 43 in the third interface 33, and the indoor heat exchange interface 312 in the first interface 31 is in communication with the second valve 42 in the second interface 32.
The refrigerant container 25, the third regulating valve 23, the compressor 11, the second valve 42, the indoor heat exchanger 72 and the indoor regulating valve 82 are sequentially connected in a circulating manner to form a second heat cycle connected in parallel with the condenser 20, the refrigerant container 25, the third regulating valve 23, the compressor 11, the condenser 20, the differential pressure regulating valve 45, the outdoor regulating valve 81, the outdoor heat exchanger 71 and the third valve 43 are sequentially connected in a circulating manner to form a second cold cycle, the outdoor heat exchanger 71 is in a cooling state, and the indoor heat exchanger 72 is in a heat recovery and heating state.
The working process is as follows:
the refrigerant output from the gaseous region of the refrigerant container 25 flows to the input end of the compressor 11 after passing through the third regulating valve 23, and the refrigerant is divided into three parts after being compressed by the compressor 11 and flows to:
the first part, the refrigerant flows to the indoor heat exchanger 72 through the second valve 42, exchanges heat through the indoor heat exchanger 72, then the refrigerant is output to the indoor adjusting valve 82 for flow adjustment, and then the refrigerant flows through the second adjusting valve 22 and then flows back to the gas area of the refrigerant container 25;
the second part, the refrigerant flows back to the gaseous region of the refrigerant container 25 after passing through the first regulating valve 211;
a third portion in which the refrigerant flows to an input end of the condenser 20, passes through the differential pressure adjusting valve 45 after being condensed by the condenser 20, and is merged with the first portion of the refrigerant;
after the second part of refrigerant and the third part of refrigerant are converged, and then are converged with the refrigerant from the condenser 20, and then flow to the outdoor regulating valve 81 for flow regulation, and then the refrigerant flows to the outdoor heat exchanger 71, flows out after the cooling heat exchange of the outdoor heat exchanger 71, and flows back to the gas state area of the refrigerant container 25 after passing through the third valve 43; the other part of the remaining refrigerant passes through the second regulating valve 22 and then flows back to the gaseous region of the refrigerant container 25.
In the second classification state, the first heat exchanger 71 acts as an evaporator of the refrigeration system, which is able to absorb heat from the environment on the outdoor side; and a second heat exchanger 72, which is part of a condensing unit in the refrigeration system, is capable of providing heat to the environment on the indoor side; through the combined utilization of the first heat exchanger 71 and the second heat exchanger 72, the extra investment of improving the room temperature through an electric heating mode on one indoor side is reduced, and the heat recovery function is further realized.
The third classification state, in which the indoor and outdoor are in the cooling state at the same time, is shown in fig. 4:
the opening state of each valve is as follows: in the second port 32, the first valve 41 and the second valve 42 are closed; in the third port 33, the fourth valve 44 and the third valve 43 are opened; as can be seen, the outdoor heat exchange interface 311 in the first interface 31 is in communication with the third valve 43 in the third interface 33, and the indoor heat exchange interface 312 in the first interface 31 is in communication with the fourth valve 44 in the third interface 33.
The refrigerant container 25, the third regulating valve 23, the compressor 11, the condenser 20, the differential pressure regulating valve 45, the outdoor regulating valve 81, the outdoor heat exchanger 71 and the third valve 43 are sequentially connected in a circulating manner to form a third cooling cycle; simultaneously, the refrigerant container 25, the third regulating valve 23, the compressor 11, the condenser 20, the differential pressure regulating valve 45, the indoor regulating valve 82, the indoor heat exchanger 72 and the fourth valve 44 are sequentially connected in a circulating manner to form a fourth cooling cycle; at this time, both the outdoor heat exchanger 71 and the indoor heat exchanger 72 are in a cooling state.
The working process is as follows:
the refrigerant is outputted from the gaseous region of the refrigerant container 25, passes through the third regulating valve 23, flows to the input end of the compressor 11, is outputted to the condenser 20 after the compression work of the compressor 11, the condenser 20 outputs the liquid refrigerant and passes through the differential pressure regulating valve 45, and at this time, the refrigerant flowing out of the differential pressure regulating valve 45 is divided into two parts:
in the first part, the refrigerant flows to the outdoor regulating valve 81 for flow regulation, then the outdoor regulating valve 81 outputs the refrigerant to the outdoor heat exchanger 71, the refrigerant flows out after the cooling heat exchange of the outdoor heat exchanger 71, and flows back to the gas state area of the refrigerant container 25 after passing through the third valve 43;
in the second part, the refrigerant flows to the indoor adjusting valve 82 for flow rate adjustment, then the indoor adjusting valve 82 outputs the refrigerant to the indoor heat exchanger 72, the refrigerant flows out after cooling heat exchange of the indoor heat exchanger 72, and flows back to the gas region of the refrigerant container 25 after passing through the fourth valve 44.
If the compressor capacity is larger than the total cooling capacity, the excess liquid refrigerant returns to the refrigerant container 25 through the second regulating valve 22, and the first regulating valve 211 regulates the hot airflow entering the refrigerant container 25, balances the excess cold quantity, stabilizes the pressure of the refrigerant container 25, and thus maintains the stable operation of the whole system.
The fourth classification state, indoor and outdoor at the same time, is in the heating state, as shown in fig. 5:
the opening state of each valve is as follows: in the second port 32, the first valve 41 and the second valve 42 are opened; in the third port 33, the fourth valve 44 and the third valve 43 are closed; it can be seen that the outdoor heat exchange port 311 in the first port 31 is in communication with the first valve 41 in the second port 32, and the indoor heat exchange port 312 in the first port 31 is in communication with the second valve 42 in the second port 32.
The refrigerant container 25, the third regulating valve 23, the compressor 11, the first valve 41, the outdoor heat exchanger 71 and the outdoor regulating valve 81 are sequentially connected in a circulating manner to form a third heat cycle, the refrigerant container 25, the third regulating valve 23, the compressor 11, the second valve 42, the indoor heat exchanger 72 and the indoor regulating valve 82 are sequentially connected in a circulating manner to form a fourth heat cycle, and at the moment, the indoor heat exchanger 72 and the outdoor heat exchanger 71 are in a heat supply state at the same time.
The working process is as follows:
the refrigerant output from the gaseous region of the refrigerant container 25 flows to the input end of the compressor 11 after passing through the third regulating valve 23, and the refrigerant is divided into four parts after being compressed by the compressor 11:
the first part, the refrigerant flows to the outdoor heat exchanger 71 through the first valve 41, exchanges heat through the outdoor heat exchanger 71, then is output to the outdoor regulating valve 81, and the refrigerant flows through the outdoor regulating valve 81 for flow regulation and then flows back to the gas region of the refrigerant container 25 after flowing through the second regulating valve 22;
the second part, the refrigerant flows to the indoor heat exchanger 72 through the second valve 42, exchanges heat through the indoor heat exchanger 72, then the refrigerant is output to the indoor adjusting valve 82, the refrigerant performs flow regulation through the indoor adjusting valve 82, and flows back to the gas region of the refrigerant container 25 after flowing through the second adjusting valve 22;
the third part, the refrigerant flows back to the gaseous region of the refrigerant container 25 after passing through the first regulating valve 211;
in the fourth portion, the refrigerant flows to the input end of the condenser 20, passes through the differential pressure adjusting valve 45 and the second adjusting valve 22, and then flows back to the refrigerant container 25.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A refrigeration system with heat recovery mode switching, comprising: the system comprises a compressor, a condenser, a refrigerant container, a heat exchange device and a switch assembly;
the compressor, the condenser and the refrigerant container are sequentially connected in a circulating manner;
one interface of the heat exchange device is connected between the output end of the condenser and the input end of the refrigerant container;
the switch assembly comprises a first interface, a second interface and a third interface, the first interface is connected with the other interface of the heat exchange device, the second interface is connected with the output end of the compressor, and the third interface is connected with the refrigerant container;
in a first state, the first interface and the second interface are connected, the third interface is closed, the refrigerant container, the compressor, the switch assembly and the heat exchanger are sequentially connected in a circulating manner to form a heat supply cycle, and the heat exchanger can supply heat;
and in a second state, the first interface and the third interface are switched on, the second interface is closed, the refrigerant container, the compressor, the condenser and the heat exchanger are sequentially connected in a circulating manner to form a cooling cycle, and the heat exchanger can supply cooling.
2. A refrigeration system with heat recovery mode switching as recited in claim 1 wherein said switch assembly is a three-way valve and said first port is a common port.
3. A refrigeration system with heat recovery mode switch as recited in claim 1 further comprising a second regulator valve, controllable to regulate condenser pressure, connected between the output of said condenser and the input of said refrigerant container.
4. A refrigeration system with heat recovery mode switching as recited in claim 3 further comprising a differential pressure regulating valve connected between said condenser output and said second regulating valve input.
5. A refrigeration system with heat recovery mode switching as recited in claim 1 further comprising a third regulator valve connected between an output of said refrigerant container and an input of said compressor.
6. A refrigeration system with heat recovery mode switching as recited in claim 1 wherein said heat exchange device and said switch assembly comprise more than one group of branches and each group of branches can be independently switched.
7. A refrigeration system with heat recovery mode switching as recited in claim 1 further comprising:
the first regulating valve is connected between the output end of the compressor and the input end of the refrigerant container;
the pressure sensor is arranged on the refrigerant container and can detect the pressure of the refrigerant container;
and a controller connected between the first regulating valve and the pressure sensor and capable of controlling the opening and closing amount of the first regulating valve.
8. The refrigeration system with heat recovery mode switching according to any one of claims 1 to 7, wherein the heat exchanging device comprises an indoor heat exchanger and an outdoor heat exchanger, the first interface comprises an indoor heat exchanging interface and an outdoor heat exchanging interface, the second interface comprises a first valve and a second valve, and the third interface comprises a third valve and a fourth valve;
the first valve is connected between the output end of the compressor and the outdoor heat exchange interface;
the second valve is connected between the output end of the compressor and the indoor heat exchange interface;
the third valve is connected between the outdoor heat exchange interface and the refrigerant container;
the fourth valve is connected between the indoor heat exchange interface and the refrigerant container;
in a first state, when the first valve and the fourth valve are opened and the second valve and the third valve are closed, the refrigerant container, the compressor, the first valve and the outdoor heat exchange interface are sequentially and circularly connected to form a first heat cycle, the refrigerant container, the compressor, the condenser, the indoor heat exchange interface and the fourth valve are sequentially and circularly connected to form a first cold cycle, the outdoor heat exchanger can supply heat, and the indoor heat exchanger can supply cold;
in the second state, when the first valve and the fourth valve are closed and the second valve and the third valve are opened, the refrigerant container, the compressor, the second valve and the indoor heat exchange interface are sequentially connected in a circulating mode to form a second heat cycle, the refrigerant container, the compressor, the condenser, the outdoor heat exchange interface and the third valve are sequentially connected in a circulating mode to form a second cold cycle, the outdoor heat exchanger can supply cold, and the indoor heat exchanger can supply heat.
9. A refrigeration system with heat recovery mode switching as recited in claim 8 further comprising:
the outdoor regulating valve is connected between the output end of the condenser and the outdoor heat exchanger;
and the indoor regulating valve is connected between the output end of the condenser and the indoor heat exchanger.
10. A refrigeration system with heat recovery mode switching as claimed in any one of claims 1 to 7, wherein said compressor is an inverter compressor.
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| CN202122705972.9U CN216204498U (en) | 2021-11-05 | 2021-11-05 | Refrigerating system with heat recovery mode switching function |
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| CN202122705972.9U CN216204498U (en) | 2021-11-05 | 2021-11-05 | Refrigerating system with heat recovery mode switching function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |