CN217636343U - Gas-heat defrosting and refrigerating system - Google Patents

Abstract

The utility model discloses a gas-heated defrosting refrigeration system, which comprises a compressor, an evaporating pipe, a condenser, a first electromagnetic valve, a drying filter, a capillary tube, an evaporator, a second electromagnetic valve and a defrosting pipe; the compressor, the evaporation pipe, the condenser, the first electromagnetic valve, the drying filter, the capillary pipe and the evaporator are sequentially connected end to form a refrigeration cycle loop; the compressor, the second electromagnetic valve, the defrosting pipe and the evaporator are sequentially connected end to form a defrosting circulation loop; the utility model discloses simple structure is compact, and refrigeration efficiency is high, reduces power consumptively, saves the cost.

Description

Gas-heat defrosting and refrigerating system

Technical Field

The utility model relates to a freezer equipment technical field especially relates to a gas heat defrosting refrigerating system.

Background

The commercial refrigerator refers to a refrigerating or freezing freezer which is specially sold in commercial channels such as business supermarkets, cold drink shops, frozen goods shops, hotel restaurants and the like and is used for storing ice cream, beverages, dairy products, quick-frozen foods, food materials and the like. With the development and enlargement of market scale of various manufacturers for large beverages, ice creams and quick-frozen foods, the market scale of the commercial refrigerator is also rapidly enlarged.

The use of commercial freezers requires periodic defrosting to avoid excessive frost layers that increase the energy consumption of the freezer. The electric heating defrosting refrigeration system is generally adopted in the existing refrigerator, and the system generally has the following problems: firstly, the evaporator condensation water and defrosting water drops discharged from the heating tube evaporation cabinet are adopted, so that the power consumption is high; secondly, the system is single, and when the compressor is suddenly stopped, the refrigerant at the high-pressure side of the condenser in the system is easy to flow to the low-pressure side of the evaporator, so that the refrigeration effect is influenced, and the energy consumption of the refrigerator is increased.

Disclosure of Invention

An object of the utility model is to provide a gas heat defrosting refrigerating system to solve the problem that proposes in the above-mentioned background art. In order to achieve the above purpose, the utility model provides a following technical scheme:

a gas-heated defrosting and refrigerating system comprises a compressor, an evaporation pipe, a condenser, a first electromagnetic valve, a drying filter, a capillary tube, an evaporator, a second electromagnetic valve and a defrosting pipe; the compressor, the evaporation pipe, the condenser, the first electromagnetic valve, the drying filter, the capillary pipe and the evaporator are sequentially connected end to form a refrigeration cycle loop; and the compressor, the second electromagnetic valve, the defrosting pipe and the evaporator are sequentially connected end to form a defrosting circulation loop.

Further, the compressor and the evaporation pipe are connected through a high-pressure gas pipe.

Further, the evaporation pipe, the condenser, the first solenoid valve, the dry filter, the capillary tube and the evaporator are connected through liquid pipes respectively.

Further, the compressor and the defrosting pipe are connected through a high-pressure gas pipe.

Further, the defrosting pipe and the evaporator are connected through a high-pressure gas pipe.

Further, the evaporation tube is in the shape of a water tray.

Further, the defrosting pipe is a copper pipe.

The beneficial effects of the utility model reside in that: the utility model discloses simple structure is compact, and refrigeration efficiency is high, reduces power consumptively, saves the cost.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the present invention.

It is noted that the drawings are not necessarily to scale and are merely illustrative in nature and not intended to obscure the reader.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As shown in fig. 1 and 2, a gas-heated defrosting refrigeration system includes a compressor 1, an evaporation pipe 2, a condenser 3, a first solenoid valve 4, a dry filter 5, a capillary tube 6, an evaporator 7, a second solenoid valve 8 and a defrosting pipe 9; the compressor 1, the evaporation pipe 2, the condenser 3, the first electromagnetic valve 4, the drying filter 5, the capillary 6 and the evaporator 7 are sequentially connected end to form a refrigeration cycle loop; and the compressor 1, the second electromagnetic valve 8, the defrosting pipe 9 and the evaporator 7 are sequentially connected end to form a defrosting circulation loop.

The working process of the gas-heated defrosting refrigeration system of the embodiment is as follows:

a refrigeration stage:

the power of the refrigerator is started, the electric control system of the refrigerator inputs voltage to the gas-heat defrosting and refrigerating system, and the gas-heat defrosting and refrigerating system is controlled to enter a refrigerating working state: at the moment, the first electromagnetic valve 4 is opened, the second electromagnetic valve 8 is closed, the compressor 1 is started, the compressor 1 absorbs low-temperature and low-pressure refrigerant vapor from the evaporator 7, and the refrigerant vapor is changed into high-temperature and high-pressure vapor after being subjected to adiabatic compression by the compressor 1; the high-temperature and high-pressure steam is discharged by the compressor 1 and then enters the evaporation tube 2, and the evaporation tube 2 evaporates condensed water or defrosting water drops discharged from the refrigerator; the high-temperature high-pressure steam flows into the condenser 3, is condensed under the same pressure, and meanwhile, radiates heat to surrounding media through a radiating fan of the condenser 3, so that the high-temperature high-pressure steam is changed into high-pressure low-temperature refrigerant cold liquid; the cold liquid of the refrigerant flows through the first electromagnetic valve 4, enters the drying filter 5, enters the capillary tube 6 after being dried and filtered by the drying filter 5, and is converted into low-temperature and low-pressure wet refrigerant steam through isenthalpic throttling in the capillary tube 6; the wet refrigerant steam then enters the evaporator 7 and boils at the same pressure of the evaporator 7, and the wet refrigerant steam absorbs the heat of the surrounding medium during boiling to become low-temperature and low-pressure refrigerant steam; the refrigerant vapor at low temperature and low pressure finally flows from the evaporator 7 to the compressor 1 and is absorbed, and a refrigeration cycle loop is formed to realize the refrigeration cycle operation.

When the temperature in the refrigerator reaches a limited temperature, the compressor 1 is stopped, the first electromagnetic valve 4 is closed, and the refrigeration cycle loop is blocked, so that the refrigerant on the high-pressure side of the condenser 3 is prevented from flowing to the low-pressure side of the evaporator 7, the evaporator 7 is kept in a low-pressure and low-temperature state, and the heat preservation time in the refrigerator is prolonged; the refrigeration effect is prevented from being influenced by energy exchange of cold and hot fluid in the refrigeration circulation loop, so that the energy utilization rate of the gas-heat defrosting refrigeration system is increased, and the energy efficiency ratio is improved; meanwhile, the power consumption can be reduced, and the cost is saved.

When the temperature in the refrigerator rises to a specific temperature, the first electromagnetic valve 4 is opened, the gas-heat defrosting refrigeration system enters a refrigeration working state again, and the refrigeration cycle loop carries out the refrigeration cycle work.

And (II) a defrosting stage:

when the electric control system detects that the refrigerator needs defrosting, the gas-heat defrosting refrigeration system is controlled to enter a defrosting working state: at the moment, the compressor 1 keeps working, the first electromagnetic valve 4 is closed, the second electromagnetic valve 8 is opened, the compressor 1 absorbs steam from the evaporator 7 and turns into high-temperature and high-pressure steam through adiabatic compression, the high-temperature and high-pressure steam enters the defrosting pipe 9 through the second electromagnetic valve 8, so that the defrosting pipe 9 heats and defrosts a water tray of the evaporator 7, then the high-temperature and high-pressure steam enters the evaporator 7 again to heat and defrost the evaporator 7, and the steam in the evaporator 7 finally flows to the compressor 1 and is absorbed to form a defrosting circulation loop to realize defrosting circulation work.

After the defrosting operation is completed, the first electromagnetic valve 4 is opened, the second electromagnetic valve 8 is closed, the gas-heat defrosting refrigeration system enters a refrigeration working state again, and the refrigeration cycle loop performs the refrigeration cycle operation.

On one hand, the gas-heated defrosting refrigeration system of the embodiment realizes the working state switching of the refrigeration cycle loop and the defrosting cycle loop by additionally arranging the first electromagnetic valve 4 and the second electromagnetic valve 8, so that the process of the refrigeration system is simpler and more compact; and the first electromagnetic valve 4 can also prevent the energy exchange of cold and hot fluid in the refrigeration cycle loop, improve the energy efficiency ratio and refrigeration efficiency of the system, reduce power consumption and save cost. On the other hand, the evaporation tube 2 replaces a heating tube, the defrosting tube 9 replaces an electric heating wire, high-temperature and high-pressure steam generated by the compressor 1 is used for carrying out gas-heat defrosting on the refrigerator, and compared with the traditional heating tube and electric heating wire defrosting mode, the refrigerator has the advantages that the rising range of the temperature in the refrigerator is reduced, the refrigeration efficiency is prevented from being influenced, the heat efficiency is improved, the power consumption is reduced, and the cost is saved.

Further, the compressor 1 and the evaporation tube 2 are connected by a high pressure gas pipe.

Further, the evaporation pipe 2, the condenser 3, the first electromagnetic valve 4, the dry filter 5, the capillary tube 6, and the evaporator 7 are connected to each other by liquid pipes.

Further, the compressor 1 and the defrosting pipe 9 are connected by a high-pressure gas pipe.

Further, the defrosting pipe 9 and the evaporator 7 are connected by a high-pressure gas pipe.

Further, the evaporation tube 2 is in the shape of a water pan.

Further, the defrosting pipe 9 is a copper pipe.

For the embodiments of the present invention, it should be further explained that, under the condition of no conflict, the features in the embodiments and embodiments of the present invention can be combined with each other to obtain a new embodiment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and the scope of the present invention should be defined by the appended claims. Although the present invention has been described in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, and that various modifications, equivalent variations and modifications may be made by those skilled in the art without departing from the scope of the invention.

Claims (7)

1. The utility model provides a gas heat defrosting refrigerating system which characterized in that: the device comprises a compressor, an evaporation pipe, a condenser, a first electromagnetic valve, a drying filter, a capillary tube, an evaporator, a second electromagnetic valve and a defrosting pipe; the compressor, the evaporation pipe, the condenser, the first electromagnetic valve, the drying filter, the capillary pipe and the evaporator are sequentially connected end to form a refrigeration cycle loop; and the compressor, the second electromagnetic valve, the defrosting pipe and the evaporator are sequentially connected end to form a defrosting circulation loop.

2. The gas-heated defrost refrigeration system of claim 1 wherein: the compressor is connected with the evaporation pipe through a high-pressure gas pipe.

3. The gas-heated defrost refrigeration system of claim 1 wherein: the evaporation pipe, the condenser, the first electromagnetic valve, the drying filter, the capillary tube and the evaporator are connected through liquid pipes respectively.

4. The gas-heated defrost refrigeration system of claim 1 wherein: the compressor and the defrosting pipe are connected through a high-pressure gas pipe.

5. The gas-heated defrost refrigeration system as recited in claim 1 wherein: the defrosting pipe and the evaporator are connected through a high-pressure gas pipe.

6. The gas-heated defrost refrigeration system of claim 1 wherein: the evaporating pipe is in a water disk shape.

7. The gas-heated defrost refrigeration system of claim 1 wherein: the defrosting pipe is a copper pipe.

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