Low-noise freezer adopting R290 working medium

Abstract

The low-noise freezer adopting the R290 working medium comprises a compressor, an evaporator, a condenser and a storage device, the outlet end of the storage device is connected with the inlet end of the compressor through a pipeline, the outlet end of the compressor is connected with the inlet end of the condenser through a pipeline, and the outlet end of the condenser is connected with the inlet end of the evaporator through a capillary tube. The outlet end of the evaporator is connected with the inlet end of the reservoir through a pipeline; wherein the compressor, the evaporator, the condenser and the storage device form a freezer circulating refrigerating system, and a refrigerant circularly conveyed in the freezer circulating refrigerating system is an R290 working medium. In the using process of the low-noise freezer, the cooler and the evaporator which are of a large-area structure are adopted, and the compressor with the large cooling capacity is adopted, so that the heat exchange effect of a circulating refrigerating system of the freezer can be enhanced, and food can be better stored.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerator refrigeration, and in particular to a low-noise refrigerator using R290 working fluid. Background Art

[0002] A freezer is a refrigeration device that maintains a constant low temperature. It is a common appliance used to preserve food or other items at low temperatures in life and is widely used in life and industry. With the improvement of living standards, users have higher requirements for the freezing and quick freezing effects of freezers. When using freezers, users need not only fast freezing, energy saving, but also low noise level of the whole machine.

[0003] The internal temperature of traditional freezers can only reach as low as -30℃. With the improvement of living standards, the market needs freezers with lower temperatures. The lower the temperature inside the box, the better the freezing effect, the longer the food can be stored, and the faster the freezing speed will be. Summary of the invention

[0004] The object of the present invention is to provide a low-noise refrigerator using R290 working fluid, so as to solve the defects in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A low-noise refrigerator using R290 working fluid, comprising a compressor, an evaporator, a condenser and a storage, wherein the outlet end of the storage is connected to the inlet end of the compressor through a pipeline, the outlet end of the compressor is connected to the inlet end of the condenser through a pipeline, the outlet end of the condenser is connected to the inlet end of the evaporator through a capillary tube, and the outlet end of the evaporator is connected to the inlet end of the storage through a pipeline;

[0007] The compressor, the evaporator, the condenser and the storage constitute a refrigerator circulation refrigeration system, and the refrigerant circulated and transported in the refrigerator circulation refrigeration system is R290 working fluid.

[0008] The evaporation temperature in the freezer circulation refrigeration system is 0°C to (-40°C).

[0009] When the freezer circulation refrigeration system is in operation, the noise generated by the freezer is no higher than 38dB(A).

[0010] When the freezer circulation refrigeration system is in operation, the energy consumption of the freezer meets the new national standard Level 1 energy efficiency standard.

[0011] The evaporator is arranged along the surrounding side walls of the refrigerator storage chamber.

[0012] The condenser is arranged along the inner wall of the refrigerator in the form of a U-shaped circulation pipe.

[0013] The compressor is fixedly installed in the refrigerator through foot pads.

[0014] Beneficial effects of the present invention:

[0015] (1) During the use of the low-noise freezer of the present application, the heat exchange effect of the freezer circulation refrigeration system can be enhanced by adopting a cooler and evaporator with a large area structure and a compressor with a large cooling capacity;

[0016] (2) The freezer circulating refrigeration system of the application adopts R290 refrigerant, which is a refrigerant with a working fluid of R600a or R134a, so that the freezer circulating refrigeration system of the application can effectively reduce the evaporation temperature, so that the freezer can reach a cooling capacity of -40°C, and the freezing speed is also faster, which can better preserve food;

[0017] (3) The freezer circulation refrigeration system of the present application adopts R290 as the refrigerant. Compared with the traditional R600a refrigerant, the refrigeration capacity of R290 is 3.75 times that of R600a. R290 has significant advantages in refrigeration performance at high temperatures and can quickly reduce the evaporation temperature of the system to accelerate the cooling effect.

[0018] (4) When the freezer's circulating refrigeration system is in operation, the noise generated by the freezer is no higher than 38dB(A), and the energy consumption of the freezer complies with the new national standard Level 1 energy efficiency standard, which can ensure that the energy saving and noise of the product of this application are maintained at the same level as traditional freezers;

[0019] (5) The freezer circulating refrigeration system of the present application uses R290 as the refrigerant. Compared with R600a, the compressor in the freezer circulating refrigeration system is larger and produces more noise. The design can be optimized by increasing the thickness of the compressor casing and using foot pads of new materials to reduce the noise of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a cross-sectional schematic diagram of the present invention.

[0023] In the figure: 1. compressor; 2. evaporator; 3. condenser; 4. storage; 5. foot pad. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the description of the present invention, the meaning of "multiple" and "several" is at least two, for example two, three, etc., unless otherwise clearly and specifically defined.

[0026] See also Figure 1 and Figure 2 As shown, the present invention is a low-noise refrigerator using R290 working fluid, including a compressor 1, an evaporator 2, a condenser 3 and a storage 4, the outlet end of the storage 4 is connected to the inlet end of the compressor 1 through a pipeline, the outlet end of the compressor 1 is connected to the inlet end of the condenser 3 through a pipeline, the outlet end of the condenser 3 is connected to the inlet end of the evaporator 2 through a capillary, and the outlet end of the evaporator 2 is connected to the inlet end of the storage 4 through a pipeline; wherein the compressor 1, the evaporator 2, the condenser 3 and the storage 4 constitute a refrigerator circulating refrigeration system, and the refrigerant circulated and transported in the refrigerator circulating refrigeration system is R290 working fluid.

[0027] During the use of the low-noise freezer of the present application, the gaseous R290 working fluid in the circulating refrigeration system of the freezer is extracted from the storage device 4 through the compressor 1 and transported to the condenser 3. The large-area condenser 3 accelerates heat dissipation to rapidly liquefy the refrigerant of the gaseous R290 working fluid. The liquefied R290 working fluid quickly enters the capillary tube for pressure reduction and is transported to the evaporator 2. The liquefied R290 working fluid refrigerant evaporates and absorbs heat to lower the internal temperature of the freezer. Since the R290 working fluid refrigerant has a large unit capacity of cooling capacity, combined with the large-area evaporator 2, the temperature inside the cabinet will drop rapidly, meeting the demand for freezers with lower cooling temperatures.

[0028] In this specific embodiment, the evaporation temperature in the freezer circulation refrigeration system is 0°C ~ (-40°C). The freezer circulation refrigeration system of the present application adopts R290 refrigerant, which is a refrigerant with a working fluid. Compared with the traditional R600a refrigerant or R134a refrigerant, the freezer circulation refrigeration system of the present application can effectively reduce the evaporation temperature, so that the freezer can reach a cooling capacity of -40°C, and the freezing speed is also faster, which can better preserve food.

[0029] It should be understood that the freezer circulating refrigeration system of the present application adopts R290 refrigerant. Compared with the traditional R600a refrigerant, the cooling capacity of R290 is 3.75 times that of R600a refrigerant. R290 refrigerant has significant advantages in refrigeration performance at high temperatures, and can quickly reduce the system evaporation temperature and accelerate the cooling effect.

[0030] In this specific embodiment, when the freezer circulation refrigeration system is in operation, the noise generated by the freezer is no higher than 38dB(A). When the freezer reaches a lower temperature, the noise of the product of the present application is no higher than 38dB(A), thereby ensuring that the noise of the product of the present application is maintained at the same level as that of a traditional freezer.

[0031] In this specific implementation, when the freezer circulation refrigeration system is in operation, the energy consumption of the freezer meets the new national standard Level 1 energy efficiency standard. The compressor 1 of the present application increases its COP control, thereby ensuring that the energy saving of the product of the present application is maintained at the same level as that of traditional freezers.

[0032] In this specific embodiment, the evaporator 2 is arranged along the four side walls of the freezer storage chamber, so that the evaporator 2 has a large-area structural design. Since the refrigerant R290 is used, the unit capacity of the evaporator 2 is large. The evaporator 2 combined with the large-area structural design can rapidly reduce the temperature inside the cabinet, thereby meeting the demand for refrigerators with lower refrigeration temperatures.

[0033] In this specific embodiment, the condenser 3 is arranged along the inner wall of the freezer in a U-shaped circulation tube, so that the condenser 3 has a large-area structural design. The large-area structure of the condenser 3 can accelerate heat dissipation and quickly liquefy the gaseous R290 refrigerant.

[0034] In this specific embodiment, the compressor 1 is fixedly installed in the freezer through the foot pad 5. Compared with R600a, the compressor 1 in the freezer circulation refrigeration system is larger with R290 working fluid, and the noise it brings is greater. The design can be optimized by increasing the thickness of the compressor 1 shell and using the foot pad 5 of a new material to reduce the noise of the whole machine.

[0035] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A low-noise refrigerator using R290 working fluid, characterized in that: The invention comprises a compressor (1), an evaporator (2), a condenser (3) and a storage (4), wherein the outlet end of the storage (4) is connected to the inlet end of the compressor (1) via a pipeline, the outlet end of the compressor (1) is connected to the inlet end of the condenser (3) via a pipeline, the outlet end of the condenser (3) is connected to the inlet end of the evaporator (2) via a capillary tube, and the outlet end of the evaporator (2) is connected to the inlet end of the storage (4) via a pipeline; The compressor (1), the evaporator (2), the condenser (3) and the storage container (4) form a refrigerator circulation refrigeration system, and the refrigerant circulated and transported in the refrigerator circulation refrigeration system is R290 working fluid.

2. A low-noise refrigerator using R290 working fluid according to claim 1, characterized in that: The evaporation temperature in the freezer circulation refrigeration system is 0°C to (-40°C).

3. A low-noise refrigerator using R290 working fluid according to claim 1, characterized in that: When the freezer circulation refrigeration system is in operation, the noise generated by the freezer is no higher than 38dB(A).

4. A low-noise refrigerator using R290 working fluid according to claim 1, characterized in that: When the freezer circulation refrigeration system is in operation, the energy consumption of the freezer meets the new national standard Level 1 energy efficiency standard.

5. A low-noise refrigerator using R290 working fluid according to claim 1, characterized in that: The evaporator (2) is arranged along the surrounding side walls of the refrigerator storage chamber in a winding and covering manner.

6. A low-noise refrigerator using R290 working fluid according to claim 1, characterized in that: The condenser (3) is arranged along the inner wall of the refrigerator in the form of a U-shaped circulation pipe.

7. A low-noise refrigerator using R290 working fluid according to claim 1, characterized in that: The compressor (1) is fixedly installed in the refrigerator via a foot pad (5).

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