CN202734383U - Small dual-temperature cold storage water-cooled refrigerator - Google Patents

Abstract

A small dual-temperature cold storage water cooler, including a compressor, an air-cooled condenser, a main capillary, and a main evaporation coil. Between the air-cooled condenser and the main capillary, a cold storage tank and a cold storage capillary are added, wherein the cold storage tank contains a The ice storage coil and a subcooling coil make the dual temperature cold storage water cooler form a cold storage and ice making cycle system and an ice melting and super cooling cycle system; the cold storage and ice making cycle is composed of a compressor, an air-cooled condenser, a solenoid valve 1. The cold storage capillary is connected in series with the ice storage coil, the one-way valve and the compressor in the cold storage tank to form a closed loop; The cold coil, the main capillary, the main evaporation coil, and the compressor are connected in series through pipelines to form a closed loop. The utility model makes use of ice production when the temperature is low at night and melts ice when the temperature is high during the day, which not only significantly improves the cooling effect, but also effectively saves electricity consumption during peak hours.

Description

A small dual temperature cold storage water cooler

technical field

The utility model relates to a small dual-temperature cold storage water cooler, which is a technical improvement on the existing water cooler and belongs to the technical field of household refrigeration equipment. the

Background technique

Existing water-cooled cabinets generally adopt the traditional refrigeration cycle system: compressor→condenser→capillary tube→evaporator→compressor. The disadvantage of this kind of common water cooler is that when the temperature is high in summer, the operation effect of this kind of common water cooler placed in a non-air-conditioned environment or at a high room temperature will be insufficient or insufficient with the increase of the condensation temperature at high temperatures. increase power consumption. The design of this work is to improve the energy saving of this kind of ordinary water cooler with relatively large power consumption, so as to adapt to the changes of the external environment. the

Utility model content

The utility model discloses a small dual-temperature cold storage water cooler. Between the condenser and the main capillary of the ordinary water cooler, a cold storage tank and a cold storage capillary for night work are added, wherein the cold storage tank contains an ice storage coil and an ice storage coil. A subcooling coil. The cold storage tank uses the period of time when the condensation temperature of the unit is low at night to store cold and make ice to store cold energy. When the ambient temperature rises during the day, the stored cooling capacity is gradually released to the supercooling coil, and the supercooling degree before throttling of the system is increased to increase the cooling capacity, thereby reducing power consumption, saving energy and being convenient to use, thereby improving general The performance of the water cooler overcomes the disadvantages of poor cooling effect and waste of energy in summer existing in the existing common freezer. the

The technical scheme of the utility model is achieved in that:

A small dual-temperature cold storage water cooler, including a compressor, an air-cooled condenser, a main capillary, and a main evaporation coil, characterized in that a cold storage tank and a cold storage capillary are added between the air-cooled condenser and the main capillary, and the cold storage The tank contains an ice storage coil and a subcooling coil, so that the dual temperature cold storage water cooler forms a cold storage ice making circulation system and an ice melting supercooling circulation system;

A) The cold storage and ice making cycle: the compressor, the air-cooled condenser, the solenoid valve 1, the cold storage capillary, the ice storage coil in the cold storage tank, the one-way valve, and the compressor are connected in series through pipelines to form a closed loop;

B) The ice-melting supercooling circulation system: compressor, air-cooled condenser, solenoid valve 2, subcooling coil, main capillary tube, main evaporation coil, and compressor are connected in series through pipelines to form a closed loop. the

The cold storage tank is a relatively independent water tank, the upper part of which is provided with an ice storage coil, and the lower part is provided with a subcooling coil. the

The utility model has two working modes of ice storage refrigeration cycle and ice melting supercooling cycle. During nighttime working hours in summer, the freezer enters the ice storage refrigeration cycle mode, and ice is formed on the ice storage coil in the cold storage tank, and the produced ice is used to store cold energy. During the working hours of the day, the freezer enters the ice-melting supercooling cycle, and the refrigerant from the air-cooled condenser passes through the subcooling coil, releases heat and melts ice in the cold storage tank, which increases the supercooling degree of the cold storage water cooler, and then makes the Cooling capacity is increased. the

The utility model has the advantages of simple structure, convenient use, remarkably improved refrigeration effect, and effective saving of peak-time electricity consumption. the

Description of drawings

Fig. 1 Schematic diagram of the refrigeration principle of a small dual-temperature storage water cooler. the

1. Compressor, 2. Air-cooled condenser, 3. Cold storage capillary, 4. Cold storage tank, 5. Main capillary, 6. Main evaporation coil, 7. Ice storage coil, 8. Subcooling coil, 9. Solenoid valve one, 10, solenoid valve two, 11, one-way valve. the

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawings and embodiments. the

A small dual-temperature cold storage water cooler is shown in Figure 1, including a compressor 1, an air-cooled condenser 2, a main capillary 5, and a main evaporation coil 6. Between the air-cooled condenser 2 and the main capillary 5, a cold storage The tank 4 and the cold storage capillary 3, wherein the cold storage tank 4 contains an ice storage coil 7 and a supercooling coil 8, so that the dual temperature cold storage water cooler forms a cold storage ice making circulation system and an ice melting supercooling circulation system. the

A) The cold storage and ice making cycle: compressor 1, air-cooled condenser 2, solenoid valve 9, cold storage capillary 3 and ice storage coil 7 in the cold storage tank 4, check valve 11, and compressor 1 connected in series through pipelines The connection forms a closed loop;

B) The ice-melting supercooling circulation system: compressor 1, air-cooled condenser 2, solenoid valve 2 10, subcooling coil 8, main capillary 5, main evaporation coil 6, and compressor 1 are connected in series through pipelines closed loop. the

The cold storage tank 4 is a relatively independent water tank, an ice storage coil 7 is arranged on the upper part thereof, and a supercooling coil 8 is arranged on the lower part thereof. the

The utility model freezer adopts R134a as refrigerant. the

The utility model adopts the submerged double-coil cold storage tank, the submerged ice storage coil and the cooling coil to ensure the stable operation of the system. the

1. Cold storage and ice making circulation system:

Choose a time period when the ambient temperature is low at night for cold storage and ice production, when the evaporation temperature and condensation temperature of the system are both low. the

Open the solenoid valve 19, the high temperature and high pressure refrigerant gas comes out from the compressor 1 to the air-cooled condenser 2 for cooling and cooling, and condenses into a high-pressure liquid, passes through the solenoid valve 19, and then throttles and depressurizes the cold storage capillary 3 to form a low-pressure two-phase flow , and then to the ice storage coil 7 in the cold storage tank 4 to evaporate and make ice outside the heat-absorbing pipe, and the formed low-temperature and low-pressure gas flows back to the compressor 1 to circulate through the check valve 11. the

2. Ice melting supercooling cycle

Choose a time of day when the ambient temperature is high, when the evaporating and condensing temperatures of the system rise. the

Open the solenoid valve 10, the solenoid valve 9 is closed, the high-temperature and high-pressure refrigerant gas comes out from the compressor 1 to the air-cooled condenser 2 for cooling and cooling, and condenses into a high-pressure liquid, passes through the solenoid valve 10, and then goes to the cooling storage tank 4. The cold coil tube 8 continues to cool down to form supercooling, and the heat released by it is balanced by the cooling capacity released by the ice-water mixture in the cold storage tank. The low-temperature and low-pressure gas formed by evaporation and heat absorption in the evaporation coil 6 flows back to the compressor 1 to circulate. Use the cold energy stored in the cold storage tank to carry out supercooling cycle, increase the cooling capacity and reduce power consumption. the

Claims (2)

1. A small-sized dual-temperature cold storage water cooler, comprising a compressor, an air-cooled condenser, a main capillary, and a main evaporation coil, characterized in that: between the air-cooled condenser and the main capillary, a cold storage tank and a cold storage capillary are added, The cold storage tank contains an ice storage coil and a supercooling coil, so that the dual temperature cold storage water cooler forms a cold storage ice making circulation system and an ice melting supercooling circulation system; A) The cold storage and ice making cycle: the compressor, the air-cooled condenser, the solenoid valve 1, the cold storage capillary, the ice storage coil in the cold storage tank, the one-way valve, and the compressor are connected in series through pipelines to form a closed loop; B) The ice-melting supercooling circulation system: compressor, air-cooled condenser, solenoid valve 2, subcooling coil, main capillary tube, main evaporation coil, and compressor are connected in series through pipelines to form a closed loop. 2. A small dual-temperature cold storage water cooler according to claim 1, characterized in that: the cold storage tank is a relatively independent water tank, the upper part of which is provided with an ice storage coil, and the lower part is provided with a supercooling coil. the

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