CN217636302U

CN217636302U - Single-cavity multi-system hot fluorine defrosting and refrigerating device

Info

Publication number: CN217636302U
Application number: CN202221216833.8U
Authority: CN
Inventors: 周华东; 鲍宏宇; 杨永; 许仁续; 邹秀珉; 李慧颖; 孙科; 常灵; 刘邦建; 刘盛兵; 张芳; 王安; 孙坤
Original assignee: Panasonic Appliances Cold Chain Dalian Co Ltd
Current assignee: Bingshan Songyang Cold Chain Dalian Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-21
Anticipated expiration: 2032-05-18

Abstract

The utility model provides a single-cavity multi-system hot fluorine defrosting and refrigerating device, which comprises a refrigerating device body, wherein the refrigerating device body is provided with a refrigerating cavity and a plurality of independent refrigerating systems; each refrigerating system comprises a compressor, a condenser, a throttling device, an evaporator and an electromagnetic valve; the refrigerant is divided into a first branch and a second branch after being discharged from an exhaust port of the compressor, the first branch sequentially passes through the condenser and the throttling device and then is converged with the second branch to enter the evaporator, the refrigerant discharged from the evaporator returns to an air return port of the compressor, the second branch is provided with the electromagnetic valve, and when the electromagnetic valve is opened, the refrigerant in the second branch defrosts the evaporator. The utility model discloses a set up the total amount that a plurality of independent refrigerating system had both guaranteed the refrigerant, can adopt the second branch road to the evaporimeter defrosting again.

Description

Single-cavity multi-system hot fluorine defrosting and refrigerating device

Technical Field

The utility model relates to a technical field such as freezer, freezer particularly a refrigerating plant of many refrigerating system with hot fluorine defrosting especially relates to a single-chamber many system hot fluorine defrosting refrigerating plant.

Background

At present, refrigerating equipment such as a refrigerator and the like gradually uses hydrocarbon refrigerants, such as R290 and the like, but the requirement of the maximum filling amount is required in some standards for the filling amount of the hydrocarbon refrigerants in a refrigerating system, and the requirement of the maximum filling amount of some refrigerating components for the filling amount of the refrigerants is also required for the refrigerating components of Freon refrigerants, so that the requirement of some large-volume refrigerating devices for reaching the required use temperature is difficult to meet.

The existing refrigerating device mostly adopts a mode that an evaporator is externally provided with an electric heating pipe for defrosting, and the electric heating pipe defrosting increases the heat radiation of the heat inside the refrigerating device during defrosting, so that the internal temperature is greatly influenced. In addition, if a hydrocarbon refrigerant is used, if leakage exists in the refrigerating device and the density of the burning and explosion point of the hydrocarbon refrigerant is reached, the electric heating pipe is damaged to generate electric sparks, and the danger hidden danger of burning and explosion in the cavity of the refrigerating device is caused.

SUMMERY OF THE UTILITY MODEL

According to the technical problem, the single-cavity multi-system hot fluorine defrosting and refrigerating device is provided.

The utility model discloses a technical means as follows:

a single-cavity multi-system hot fluorine defrosting and refrigerating device comprises a refrigerating device body, wherein the refrigerating device body is provided with a refrigerating cavity and a plurality of independent refrigerating systems;

the refrigerating device body is provided with a heat insulation layer material, and can play a certain heat insulation role.

Each refrigerating system comprises a compressor, a condenser, a throttling device, an evaporator and an electromagnetic valve; the refrigerant is divided into a first branch and a second branch after being discharged from an exhaust port of the compressor, the first branch is converged with the second branch after sequentially passing through the condenser and the throttling device and then enters the evaporator, the refrigerant discharged from the evaporator returns to an air return port of the compressor, the second branch is provided with an electromagnetic valve, and when the electromagnetic valve is opened, the refrigerant in the second branch defrosts the evaporator.

Preferably, the plurality of condensers are integrally formed, but the pipes are not communicated with each other. And the compressor, the solenoid valve and the condenser are installed at the unit installation site of the refrigeration device body.

Preferably, the plurality of evaporators are made in one body, but the pipes are not communicated with each other. And the evaporator is arranged in the refrigeration cavity, and the arrangement position of an evaporation fan of the evaporator is determined according to the actual wind direction.

Preferably, the refrigerant is R290 or other refrigerants, and the refrigerant control is below the national standard and the industry standard maximum sealing amount requirement or below the refrigerant maximum sealing amount required by the parts such as the compressor.

Preferably, the refrigeration chamber has a door, which is a solid door or a glass door with thermal insulation material or a glass door or an air curtain with an electric heating film.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a set up the total amount that a plurality of independent refrigerating system had guaranteed the refrigerant, can satisfy some big volumetric refrigerating plant and reach required service temperature.

2. The utility model discloses a second branch road of solenoid valve control switching defrosts the evaporimeter, no longer adopts electric heating pipe's mode, can not influence inside temperature, and safe and reliable.

3. The utility model discloses can select to open a refrigerating system or a plurality of refrigerating system and open simultaneously according to refrigerating plant's concrete in service behavior, select freely.

4. The utility model discloses can install two sets of or more than two sets of refrigerating system according to refrigerating plant's concrete in service behavior.

5. The condenser is made into an integral type, and the evaporator is made into an integral type, so that the installation space is further saved.

Based on the above reason the utility model discloses can extensively promote in fields such as freezer or freezer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a refrigeration system connection according to an embodiment of the present invention.

Fig. 2 is a schematic view of the condenser assembly according to the embodiment of the present invention.

Fig. 3 is a schematic view of an evaporator assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a single-cavity multi-system hot-fluorine defrosting and refrigerating apparatus according to an embodiment of the present invention.

In the figure: 1. a compressor; 2. a condenser; 3. a throttling device; 4. an evaporator; 5. an electromagnetic valve; 6. a condensing fan; 7. an evaporation fan; 8. a condenser assembly; 9. combining an evaporator; 10. a refrigeration device body; 11. and (5) combining the units.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus that are known by one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 4, a single-cavity multi-system hot-fluorine defrosting and refrigerating device comprises a refrigerating device body, wherein the refrigerating device body 10 is provided with a refrigerating cavity and a plurality of independent refrigerating systems a, two independent refrigerating systems a are adopted in the embodiment, and the refrigerating device body 10 is provided with a heat insulation layer material and can play a certain heat insulation role.

Each refrigerating system A comprises a compressor 1, a condenser 2, a throttling device 3, an evaporator 4 and an electromagnetic valve 5;

as shown in fig. 2, the plurality of condensers 3 are integrally formed to form a condenser assembly 8, the condenser assembly 8 of the present embodiment shares one condensing fan 6, or a plurality of condensing fans 6 may be used, and the pipelines of the condenser assembly 8 are not communicated with each other, as shown in fig. 4, the condenser assembly 8, the condensing fan 6, the compressor 1 and the evaporator 4 form a unit assembly 11, and the unit assembly 11 is installed at a unit installation position of the refrigeration apparatus body 10, which is located at the bottom of the refrigeration apparatus body 10 in the present embodiment.

As shown in fig. 3, the plurality of evaporators 4 are integrally formed to form an evaporator assembly 9, but the pipelines are not communicated with each other, the throttling device 3, the evaporator assembly 9 and the evaporation fans 7 are installed in the refrigeration cavity (as shown in fig. 4), the number of the evaporation fans 7 is selected as required, and the placement position of the evaporation fans 7 is determined according to the actual wind direction, in this embodiment, one evaporation fan 7 is adopted (as shown in fig. 1). The refrigeration cavity is provided with a door which is a solid door or a glass door with a heat insulation material or a glass door or an air curtain with an electric heating film.

The connection relationship of the refrigeration system a is shown in fig. 1:

the refrigerant is discharged from an exhaust port of the compressor 1 and then is connected with one end of a pipeline a, and the tail end of the pipeline a is divided into a first branch and a second branch; the refrigerant is R290 or other refrigerants, and the refrigerant control is below the requirement of the national standard and the industry standard maximum sealing amount or below the requirement of the parts such as a compressor and the like.

The first branch comprises a pipeline b connected with the tail end of the pipeline a, the tail end of the pipeline b is connected with one end of a condenser 2, the other end of the condenser is connected with a pipeline c, the tail end of the pipeline c is connected with one end of a throttling device 3, and the other end of the throttling device 3 is connected with the tail end of a pipeline d;

the second branch comprises a pipeline g connected with the tail end of the pipeline a, the tail end of the pipeline g is connected with a pipeline h through an electromagnetic valve 5, and the other end of the pipeline h is converged with the tail end of the pipeline d;

and the end of the pipeline d is connected with the pipeline e, the end of the pipeline e is connected with one end of the evaporator 4, and the other end of the evaporator 4 is connected with the air return port of the compressor through the pipeline f.

In the refrigeration process, the compressor 1 is operated, the electromagnetic valve 5 is closed, the refrigerant is discharged from the compressor 1, enters the condenser 2 from the pipelines a to b for cooling, flows into the throttling device 3 through the pipeline c for throttling, enters the evaporator 4 through the pipelines d to e for refrigeration, then returns to the compressor 1 through the pipeline f for reciprocating refrigeration circulation, and at the moment, the refrigerant in the pipelines g and h does not flow because the electromagnetic valve 5 is closed. In the refrigeration process, the two refrigeration systems can work simultaneously, and one refrigeration system can also be selected to work according to the requirement, so that the working mode is flexible.

In the hot fluorine defrosting process, the compressor 1 is operated, the electromagnetic valve 5 is opened, the refrigerant is discharged by the compressor 1 and then flows from the pipelines a to b and g, but because the refrigerating system is provided with the throttling device 3 and the flow is limited, the refrigerant mainly flows through the pipeline g to enter the electromagnetic valve 5 and flows through the pipelines h to e to enter the evaporator 4, because the refrigerant discharged by the compressor is not cooled by the condenser 2 and throttled by the throttling device 3, the refrigerant with heat can carry out hot fluorine defrosting on the evaporator 4, and then returns to the compressor 1 through the pipeline f to carry out the hot fluorine defrosting cycle. In the hot fluorine defrosting process, two systems can work simultaneously or one system can work according to the defrosting requirement.

The embodiment ensures the total amount of the refrigerant by arranging the two independent refrigerating systems A, and can meet the requirement that a large-volume refrigerating device reaches the required use temperature.

In the embodiment, the electromagnetic valve 5 controls the opened and closed second branch to defrost the evaporator 4, so that an electric heating tube is not used, the internal temperature is not affected, and the defrosting device is safe and reliable.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The single-cavity multi-system hot fluorine defrosting and refrigerating device is characterized by comprising a refrigerating device body, wherein the refrigerating device body is provided with a refrigerating cavity and a plurality of independent refrigerating systems;

each refrigerating system comprises a compressor, a condenser, a throttling device, an evaporator and an electromagnetic valve; the refrigerant is divided into a first branch and a second branch after being discharged from an exhaust port of the compressor, the first branch sequentially passes through the condenser and the throttling device and then is converged with the second branch to enter the evaporator, the refrigerant discharged from the evaporator returns to an air return port of the compressor, the second branch is provided with the electromagnetic valve, and when the electromagnetic valve is opened, the refrigerant in the second branch defrosts the evaporator.

2. The single-cavity multi-system hot-fluorine defrosting and refrigerating device as claimed in claim 1, wherein the throttling device and the evaporator are arranged in the refrigerating cavity, and the compressor and the condenser are arranged outside the refrigerating cavity and are positioned at a unit installation position of the refrigerating device body.

3. The single-cavity multi-system hot-fluorine defrosting and refrigerating device as claimed in claim 2, wherein a plurality of condensers are integrally formed, and the compressor, the solenoid valve and the condensers are installed at a unit installation position of the refrigerating device body.

4. The single-cavity multi-system hot-fluorine defrosting and refrigerating device as claimed in claim 2, wherein a plurality of evaporators are integrally installed in the refrigerating cavity, and the arrangement positions of evaporation fans of the evaporators are determined according to actual wind directions.

5. The single-cavity multi-system hot-fluorine defrosting and refrigerating device as claimed in claim 1, wherein the refrigerant is R290.

6. The apparatus as claimed in claim 1, wherein the refrigerating chamber has a door, and the door is a solid door or a glass door with thermal insulation material or a glass door with electric heating film or an air curtain.