CN215002353U

CN215002353U - Ultra-low temperature refrigerating system

Info

Publication number: CN215002353U
Application number: CN202120461577.8U
Authority: CN
Inventors: 李鑫; 李兆鹏; 王玉停; 慈维华
Original assignee: Qingdao Essin Electrical Appliances Co ltd
Current assignee: Qingdao Essin Electrical Appliances Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-12-03
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses an ultra-low temperature refrigerating system, including compressor, condenser, drier-filter, heat exchanger, capillary, evaporimeter and filter screen, the export of compressor passes through the entry intercommunication of pipeline and condenser, the export of condenser passes through the entry intercommunication of pipeline and drier-filter, the one end intercommunication of pipeline and heat exchanger is passed through in drier-filter's export, the heat exchanger comprises thick copper pipe and thin copper pipe, the entry intercommunication of pipeline and capillary is passed through to thin copper pipe one end in the heat exchanger. The heat exchanger in the ultralow temperature refrigerating system is an evaporator of a high-temperature part and a condenser of a low-temperature part, and is formed by connecting a 10mm thick copper pipe and a 4.76mm thin copper pipe through tin soldering, and then winding the copper pipes into a spiral shape by using a special tool, so that the heat exchange area is increased to the maximum extent, a refrigerant is more fully condensed in the heat exchanger, a guarantee is provided for secondary refrigeration, and the ultralow temperature effect is achieved.

Description

Ultra-low temperature refrigerating system

Technical Field

The utility model relates to a refrigeration technology field specifically is ultra-low temperature refrigerating system.

Background

The common refrigerating system of the refrigerator consists of a compressor, a condenser, a drying filter and an evaporator, a refrigerant is subjected to single condensation and evaporation in the system to achieve a corresponding refrigerating effect, namely-18 ℃, a common low-temperature system is divided into a second-level system, a third-level system and a multi-level system, the number of the parts such as the compressor and the like in the system is two, three or more, and a gas-liquid separator is required to be added to achieve the low-temperature effect, but the cost is high, the system is complex, and the use and the maintenance are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultra-low temperature refrigerating system to it is with high costs to propose in solving above-mentioned background art, and the system is complicated, uses and maintains inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: ultralow temperature refrigerating system, including compressor, condenser, drier-filter, heat exchanger, capillary, evaporimeter and filter screen, the export of compressor passes through the entry intercommunication of pipeline and condenser, the export of condenser passes through the entry intercommunication of pipeline and drier-filter, the one end intercommunication of pipeline and heat exchanger is passed through in drier-filter's export, the heat exchanger comprises thick copper pipe and thin copper pipe, the entry intercommunication of pipeline and capillary is passed through to thin copper pipe one end in the heat exchanger, the entry intercommunication of pipeline and evaporimeter is passed through in the export of capillary, thick copper pipe one end intercommunication in the export of evaporimeter and the heat exchanger, the thick copper pipe other end passes through pipeline and filter screen intercommunication in the heat exchanger, the filter screen passes through the entry intercommunication of pipeline and compressor.

Preferably, the thick copper pipe and the thin copper pipe in the heat exchanger are both in a spiral shape.

Preferably, the diameters of the thick copper pipe and the thin copper pipe in the heat exchanger are respectively 10mm and 4.76 mm.

Preferably, the outlet of the drying filter is communicated with the other end of the thin copper tube in the heat exchanger through a pipeline.

Compared with the prior art, the beneficial effects of the utility model are that: the heat exchanger in the ultra-low temperature refrigeration system is not only an evaporator of a high-temperature part, but also a condenser of a low-temperature part, and a thick copper pipe with the diameter of 10mm and a thin copper pipe with the diameter of 4.76mm are connected by tin soldering, and then are wound into a spiral shape by using a special tool, so that the heat exchange area is increased to the maximum extent, a refrigerant is more fully condensed in the heat exchanger, a guarantee is provided for secondary refrigeration, and the effect of ultra-low temperature is achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a compressor; 2. a condenser; 3. drying the filter; 4. a heat exchanger; 5. a capillary tube; 6. an evaporator; 7. and (4) a filter screen.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides a technical solution: an ultralow temperature refrigerating system comprises a compressor 1, a condenser 2, a drying filter 3, a heat exchanger 4, a capillary tube 5, an evaporator 6 and a filter screen 7, wherein the outlet of the compressor 1 is communicated with the inlet of the condenser 2 through a pipeline, the outlet of the condenser 2 is communicated with the inlet of the drying filter 3 through a pipeline, the outlet of the drying filter 3 is communicated with one end of the heat exchanger 4 through a pipeline, the heat exchanger 4 consists of a thick copper tube and a thin copper tube, the thick copper tube and the thin copper tube in the heat exchanger 4 are both in a spiral shape, the diameters of the thick copper tube and the thin copper tube in the heat exchanger 4 are respectively 10mm and 4.76mm, the heat exchange area is increased to the maximum extent, refrigerant is more fully condensed in the heat exchanger, the guarantee is provided for secondary refrigeration, thereby the ultralow temperature effect is achieved, one end of the thin copper tube in the heat exchanger 4 is communicated with the inlet of the capillary tube 5 through a pipeline, the outlet of the capillary tube 5 is communicated with the inlet of the evaporator 6 through a pipeline, the export of evaporimeter 6 and the thick copper pipe one end intercommunication in the heat exchanger 4, the thick copper pipe other end passes through pipeline and filter screen 7 intercommunication in the heat exchanger 4, and filter screen 7 passes through the pipeline and communicates with the entry of compressor 1, and the export of dry filter 3 passes through the pipeline and communicates with the other end of the thin copper pipe in the heat exchanger 4.

The working principle is as follows: after the compressor 1 is started, the high-temperature refrigerant is firstly evaporated, the heat exchanger 4 is used as a part of a high-temperature refrigerant evaporator to condense the low-temperature refrigerant passing through the high-temperature refrigerant evaporator, so that the low-temperature refrigerant can be evaporated in the evaporator 6, the heat of a cooled object in the refrigerator is taken away and is transferred to the high-temperature refrigerant, and the high-temperature refrigerant takes away the heat, thereby achieving the effect of ultralow temperature.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Ultralow temperature refrigerating system, including compressor (1), condenser (2), drier-filter (3), heat exchanger (4), capillary (5), evaporimeter (6) and filter screen (7), its characterized in that: the export of compressor (1) passes through the entry intercommunication of pipeline and condenser (2), the export of condenser (2) passes through the entry intercommunication of pipeline and drier-filter (3), the export of drier-filter (3) passes through the one end intercommunication of pipeline and heat exchanger (4), heat exchanger (4) comprise thick copper pipe and thin copper pipe, the entry intercommunication of pipeline and capillary (5) is passed through to thin copper pipe one end in heat exchanger (4), the entry intercommunication of pipeline and evaporimeter (6) is passed through to the export of capillary (5), the export of evaporimeter (6) and the thick copper pipe one end intercommunication in heat exchanger (4), the thick copper pipe other end passes through pipeline and filter screen (7) intercommunication in heat exchanger (4), filter screen (7) pass through the entry intercommunication of pipeline and compressor (1).

2. The ultra-low temperature refrigeration system of claim 1, wherein: the thick copper pipe and the thin copper pipe in the heat exchanger (4) are both in spiral shapes.

3. The ultra-low temperature refrigeration system of claim 1, wherein: the diameters of the thick copper pipe and the thin copper pipe in the heat exchanger (4) are respectively 10mm and 4.76 mm.

4. The ultra-low temperature refrigeration system of claim 1, wherein: and the outlet of the drying filter (3) is communicated with the other end of the thin copper pipe in the heat exchanger (4) through a pipeline.