CN212205244U

CN212205244U - Refrigerating system for refrigerating and freezing device and refrigerating and freezing device

Info

Publication number: CN212205244U
Application number: CN202020377475.3U
Authority: CN
Inventors: 刘山山; 曹东强; 刘建如; 宋向鹏; 戚斐斐
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-12-22
Anticipated expiration: 2030-03-23

Abstract

The utility model provides a refrigerating system and cold-stored refrigeration device for cold-stored refrigeration device. The refrigeration system comprises a first compressor, a second compressor, a condenser, an evaporator, an intercooler, a first throttling device and a second throttling device; the outlet of the condenser is communicated with the exhaust port of the first compressor, the outlet of the first throttling device is communicated with the inlet of the evaporator, and the outlet of the evaporator is communicated with the air suction port of the second compressor; the intercooler comprises a first heat exchange part and a second heat exchange part, and the first heat exchange part is thermally connected with the second heat exchange part; the first heat exchange part is provided with a first inlet, a second inlet and a first outlet, the first inlet is communicated with the outlet of the second throttling device, the second inlet is communicated with the exhaust port of the second compressor, and the first outlet is communicated with the air suction port of the first compressor; the second heat exchange part is provided with a third inlet and a second outlet, and the second outlet is communicated with the inlet of the first throttling device; the third inlet and the inlet of the second throttling device are both communicated with the outlet of the condenser.

Description

Refrigerating system for refrigerating and freezing device and refrigerating and freezing device

Technical Field

The utility model relates to a refrigeration field especially relates to a refrigerating system and cold-stored refrigeration device for cold-stored refrigeration device.

Background

At present, the temperature range of a freezing room of a refrigerator on the market is mostly adjusted between-16 ℃ and-24 ℃, and the overall design is more conventional. Along with the gradual promotion of people's standard of living, this kind of warm area refrigerator can not satisfy everybody's demand well, need design the temperature range wider, and the function is more complete, can satisfy the high-end refrigerator of more demands of user, to the save of special precious edible material, exists the demand to the ultra-low temperature compartment in the high-end user market, -60 ℃ basically covers daily meat and melon and fruit vegetables glass state optimum save temperature, provides probably for eating the material to keep fresh for a long time and store.

SUMMERY OF THE UTILITY MODEL

In order to meet the market demand, the inventor provides a refrigerating system for a refrigerating and freezing device and the refrigerating and freezing device, and the storage compartment can reach extremely low temperature.

In one aspect, the present invention provides a refrigeration system for a refrigeration chiller, comprising a first compressor, a second compressor, a condenser, an evaporator, an intercooler, a first throttling device, and a second throttling device;

an outlet of the condenser is communicated with an exhaust port of the first compressor, an outlet of the first throttling device is communicated with an inlet of the evaporator, and an outlet of the evaporator is communicated with a suction port of the second compressor;

the intercooler includes a first heat exchanging part and a second heat exchanging part, the first heat exchanging part and the second heat exchanging part being thermally connected; and is

The first heat exchange part is provided with a first inlet, a second inlet and a first outlet, the first inlet is communicated with the outlet of the second throttling device, the second inlet is communicated with the exhaust port of the second compressor, and the first outlet is communicated with the suction port of the first compressor;

the second heat exchange part is provided with a third inlet and a second outlet, and the second outlet is communicated with the inlet of the first throttling device;

and the third inlet and the inlet of the second throttling device are communicated with the outlet of the condenser.

Optionally, the refrigeration system further comprises:

the first bypass pipeline is communicated with an inlet of the first throttling device and an outlet of the condenser; and

a valve arrangement configured to controllably open or close the third inlet and the outlet of the condenser, and to controllably open or close the first bypass line.

Optionally, the refrigeration system further includes a second bypass line, which communicates an outlet of the evaporator with a suction port of the first compressor.

Optionally, the intercooler is a double pipe heat exchanger, and the first heat exchanging portion is disposed outside the second heat exchanging portion.

Optionally, the first inlet and the second inlet are provided as the same communication port.

Optionally, the second throttling means is further for disconnecting the first inlet from the outlet of the condenser; or, the valve device is also configured to controllably open or close the first inlet and the outlet of the condenser.

Optionally, the valve arrangement comprises a first valve mounted on the line between the third inlet and the outlet of the condenser and a second valve mounted on the first bypass line.

Optionally, a cooling fin is disposed outside the first heat exchanging portion.

On the other hand, the utility model provides a cold-stored refrigeration device, the power distribution box comprises a box body, be provided with first storing room in the box, still include any kind of refrigerating system of above-mentioned, the evaporimeter configure into to first storing room provides cold volume.

Optionally, a second storage chamber is further disposed in the box body, and the first heat exchange portion is configured to provide cooling capacity to the second storage chamber.

The utility model discloses an among refrigerating system and the cold-stored refrigerating plant, because have intercooler and second compressor, can realize that the storing room can reach extremely low temperature, satisfy the demand to the ultra-low temperature room in the market.

Further, the utility model discloses an among refrigerating system and the cold-stored refrigerating plant, because have first bypass pipeline, second bypass pipeline and valving, also can set to conventional warm area when not needing the ultra-low temperature warm area, satisfy user diversified demand.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of a refrigeration system in a refrigeration and freezing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of an intercooler in the refrigeration system of FIG. 1;

fig. 3 is a schematic view of a refrigeration and freezing apparatus according to an embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic diagram of a refrigeration system in a refrigeration and freezing apparatus according to an embodiment of the present invention. As shown in fig. 1, the embodiment of the present invention provides a refrigeration system for a refrigeration and freezing apparatus, which includes a first compressor 11, a second compressor 12, a condenser 13, an evaporator 14, an intercooler 20, a first throttling device 15, and a second throttling device 16. The outlet of the condenser 13 communicates with the discharge port of the first compressor 11, the outlet of the first throttling means 15 communicates with the inlet of the evaporator 14, and the outlet of the evaporator 14 communicates with the suction port of the second compressor 12. The intercooler 20 includes a first heat exchanging part 21 and a second heat exchanging part 22, and the first heat exchanging part 21 and the second heat exchanging part 22 are thermally connected. And the first heat exchanging part 21 has a first inlet, a second inlet and a first outlet, the first inlet is communicated with the outlet of the second throttling means 16, the second inlet is communicated with the exhaust port of the second compressor 12, and the first outlet is communicated with the suction port of the first compressor 11. The second heat exchanging portion 22 has a third inlet and a second outlet, and the second outlet is communicated with the inlet of the first throttling means 15. The third inlet and the inlet of the second throttle device 16 are both in communication with the outlet of the condenser 13. The first compressor 11 may also be referred to as a high-temperature stage compressor, and the second compressor 12 may also be referred to as a low-temperature stage compressor.

The utility model discloses cold-stored refrigeration device all opens at during operation first compressor 11 and second compressor 12, refrigerant after the 16 throttles of second throttling arrangement and the first heat transfer portion 21 of second compressor 12 exhaust refrigerant entering, can cool off the refrigerant in the second heat transfer portion 22, refrigerant in the second heat transfer portion 22 gets into first throttling arrangement 15, the back is gasification in evaporimeter 14, acquire the ultra-low temperature, can realize that the storing room can reach the extreme low temperature, satisfy the demand to the ultra-low temperature room on the market. Although the second compressor 12 can raise the temperature of the refrigerant, the temperature of the refrigerant formed by mixing with the refrigerant throttled by the second throttling device 16 is sufficient to cool the refrigerant in the second heat exchanging part 22.

In some embodiments of the present invention, the refrigeration system further comprises a first bypass line 17 and a valve arrangement. A first bypass line 17 connects the inlet of the first throttle 15 with the outlet of the condenser 13. The valve arrangement is configured to controllably open or close the third inlet and the outlet of the condenser 13 and to controllably open or close the first bypass line 17. By providing the first bypass line 17, the refrigeration system can selectively allow the refrigerant entering the evaporator 14 not to pass through the second heat exchanging portion 22, so that different temperature ranges can be obtained in the corresponding storage compartments. The first compressor 11 and the second compressor 12 are synchronously started, and the overall load of the compressors can be reduced.

In some embodiments of the present invention, the refrigeration system further comprises a second bypass line 18 communicating the outlet of the evaporator 14 with the suction inlet of the first compressor 11. Because of having first bypass pipeline 17, second bypass pipeline 18 and valving, also can set to conventional warm area when not needing the ultra-low temperature warm area, satisfy user's diversified demand, set up second bypass pipeline 18 and make second compressor 12 open according to the demand, perhaps shut down according to the demand. Further, the second throttling means 16 is also used to disconnect the first inlet from the outlet of the condenser 13. Alternatively, the valve arrangement is further configured to controllably open or close the first inlet and the outlet of the condenser 13. The valve arrangement comprises a first valve 31 and a second valve 32, the first valve 31 being mounted in the line between the third inlet and the outlet of the condenser 13, and the second valve 32 being mounted on the first bypass line 17.

In some embodiments of the present invention, as shown in fig. 2, the first heat exchanging portion 21 and the second heat exchanging portion 22 may be integrally formed, for example, the intercooler 20 is a double pipe heat exchanger, and the first heat exchanging portion 21 is disposed outside the second heat exchanging portion 22. The first inlet and the second inlet are arranged to be the same communication port. The first heat exchanging portion 21 is externally provided with cooling fins 23.

Fig. 3 is a schematic view of a refrigeration and freezing apparatus according to an embodiment of the present invention. As shown in fig. 3, the present invention further provides a refrigerating and freezing device, which can be a small household refrigerating and freezing device for storing food, medicine or other articles, for example, a refrigerator or an ice chest.

The refrigeration and freezing apparatus includes a cabinet 40 and a refrigeration system as in any of the embodiments described above. A first storage compartment 41 is provided in the cabinet 40, and the evaporator 14 is configured to supply cold energy to the first storage compartment 41. The evaporator 14 may be disposed at the bottom or rear of the first storage compartment 41. In some further embodiments of the present invention, a second storage compartment 42 is further disposed in the box, and the first heat exchanging portion 21 is configured to provide cooling energy to the second storage compartment 42. The intercooler 20 may be disposed at a rear portion of the second storage compartment 42.

The refrigerating and freezing device can be an air-cooled refrigerator, an air duct and an air duct control device are further arranged in the box body 40, and the air duct control device can comprise an air door to control the cooling of the first storage chamber 41 and the second storage chamber 41 according to requirements. The first storage compartment 41 is a freezer/deep cold compartment and the second storage compartment 42 is a refrigerator compartment.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A refrigeration system for a refrigerated refrigeration unit comprising a first compressor, a second compressor, a condenser, an evaporator, an intercooler, a first throttle device and a second throttle device;

2. The refrigerant system as set forth in claim 1, further including:

3. The refrigerant system as set forth in claim 1, further including:

and the second bypass pipeline is communicated with the outlet of the evaporator and the suction port of the first compressor.

4. The refrigerant system as set forth in claim 1,

the intercooler is a double-pipe heat exchanger, and the first heat exchange portion is arranged on the outer side of the second heat exchange portion.

5. The refrigeration system of claim 1 or 4,

the first inlet and the second inlet are arranged to be the same communication port.

6. The refrigerant system as set forth in claim 2,

the second throttling device is also used for disconnecting the first inlet from the outlet of the condenser; or, the valve device is also configured to controllably open or close the first inlet and the outlet of the condenser.

7. The refrigerant system as set forth in claim 2,

the valve device comprises a first valve and a second valve, the first valve is arranged on a pipeline between the third inlet and the outlet of the condenser, and the second valve is arranged on the first bypass pipeline.

8. The refrigeration system as recited in claim 1, wherein a cooling fin is disposed outside the first heat exchanging portion.

9. A cold storage and freezing apparatus comprising a cabinet having a first storage compartment disposed therein, and further comprising a refrigeration system as claimed in any one of claims 1 to 8, the evaporator being configured to provide refrigeration to the first storage compartment.

10. A refrigerator-freezer according to claim 9, wherein a second storage compartment is provided within the box, and the first heat exchange portion is configured to provide cold to the second storage compartment.