CN206222801U - Separating refrigerating equipment - Google Patents

Abstract

The utility model provides a split-type refrigeration equipment, which includes a refrigeration system and a fan, and also includes an outdoor cabinet and a plurality of independent indoor storage cabinets. A compressor, a condenser and a fan are arranged in the outdoor cabinet, and the fan is arranged in the There is an air duct between the machine and the condenser, between the fan and the compressor; the refrigeration system also includes a gas-liquid separator, a first regenerator and a heat exchanger; the first regenerator is provided with a first capillary tube and a second A return heat pipe, the condenser is connected to the inlet of the gas-liquid separator; the gas-liquid separator gas outlet is connected to the first heat exchange channel of the heat exchanger, the first heat exchange channel is connected to the deep-low temperature evaporator, and the gas-liquid separator The liquid outlet is connected to the shallow low temperature evaporator, the shallow low temperature evaporator is connected to the second heat exchange channel of the heat exchanger, the second heat exchange channel and the deep low temperature evaporator are connected to the first heat return pipe, and the first heat return pipe is connected to the compressor imports. Improve the convenience and versatility of use, and improve the comfort and experience of users.

Description

Split refrigeration equipment

technical field

The utility model relates to refrigeration equipment, in particular to a split type refrigeration equipment.

Background technique

At present, refrigeration equipment (refrigerators, freezers, etc.) are widely used in people's daily life. Traditional household refrigeration equipment adopts a single-box structure. The box is divided into a storage room and a machine compartment. The compressor, condenser, fan and other components are arranged in the machine compartment. items. During actual use, the operation of the compressor in the machine compartment will generate noise and heat, resulting in poor comfort and experience for users of refrigeration equipment in the prior art; at the same time, the storage compartments are all arranged in the same box Therefore, the user needs to configure multiple independent refrigeration devices in different rooms to meet the needs of refrigeration storage, resulting in low convenience and versatility of the refrigeration devices in the prior art.

Utility model content

The technical problem to be solved by the utility model is: to provide a split type refrigeration equipment, realize the improvement of the convenience and versatility of use of the split type refrigeration equipment, and improve the comfort and experience of users.

The technical solution provided by the utility model is a split type refrigeration equipment, including a refrigeration system and a fan. An independent indoor locker, the compressor, the condenser and the fan are arranged in the outdoor cabinet, the fan is arranged between the compressor and the condenser, the fan and Air ducts are arranged between the compressors; the indoor lockers are divided into shallow low-temperature lockers and deep low-temperature lockers, and the cold end evaporators are divided into shallow low-temperature evaporators and deep low-temperature evaporators. The shallow low temperature evaporator is arranged in the shallow low temperature locker, and the deep low temperature evaporator is arranged in the deep low temperature locker; the throttling device includes a first capillary tube and a second capillary tube, and the refrigeration The system also includes a gas-liquid separator, a first regenerator and a heat exchanger; the first regenerator is provided with the first capillary tube and the first regenerating tube for mutual heat exchange, and the outlet of the condenser is connected to the The inlet of the gas-liquid separator is connected; the gas outlet of the gas-liquid separator is connected to the first heat exchange channel of the heat exchanger, and the first heat exchange channel is connected to the deep The inlet of the low-temperature evaporator is connected, the liquid outlet of the gas-liquid separator is connected to the inlet of the shallow low-temperature evaporator through the first capillary, and the outlet of the shallow low-temperature evaporator is connected to the first The two heat exchange channels are connected, the second heat exchange channel and the outlet of the deep-low temperature evaporator are respectively connected to the first heat return pipe, and the first heat return pipe is connected to the inlet of the compressor.

The split-type refrigeration equipment provided by the utility model is divided into an outdoor cabinet and a plurality of independent indoor storage cabinets by adopting a split structure. The casing is set on the outdoor side, and the noise and heat generated by the compressor will not affect the indoor side, which can effectively improve the user's comfort and experience; moreover, due to the use of multiple independent indoor lockers, the user can Different indoor lockers are placed in different rooms according to needs, so as to improve the convenience and versatility of the split refrigeration equipment. In addition, setting the compressor, condenser and fan in the same air duct can make full use of the wind generated by the fan to dissipate heat from the compressor and condenser at the same time, improve the heat exchange effect of the compressor and condenser overall, and improve the efficiency of the refrigeration system. Heat exchange efficiency, improve energy utilization.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying creative labor.

Fig. 1 is a structural principle diagram of an embodiment of the split type refrigeration equipment of the present invention.

Fig. 2 is a schematic diagram of an embodiment of the split type refrigeration equipment of the present invention.

Fig. 3 is a schematic diagram of the structure of the outdoor unit in the embodiment of the split type refrigeration equipment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1-3, the split-type refrigeration equipment of this embodiment adopts a split-type structure, including an outdoor cabinet 101 and a plurality of independent indoor lockers 102, the outdoor cabinet 101 is placed on the outside of the wall 100, and the indoor The storage cabinet 102 is placed on the inner side of the wall 100, wherein components such as the compressor 1, the condenser 2, the throttling device and the fan (not shown) of the refrigeration system are arranged in the outdoor cabinet 101, and the cooling system of the refrigeration system The end evaporators are arranged in the corresponding indoor lockers 102 .

Specifically, during the actual use of the split-type refrigeration equipment in this embodiment, since the compressor 1 is installed in the external outdoor casing 101, the noise and heat generated by the operation of the compressor 1 will not affect the indoor side, which can effectively Improve the comfort of users in indoor use and improve user experience. At the same time, due to the adoption of multiple independent indoor lockers 102, the indoor lockers 102 can be placed in different rooms for use as required, so that a single compressor 1 can meet the needs of freezing or refrigerating items in different rooms. Wherein, the indoor locker 102 is also provided with a circulation fan (not shown), and the air circulation in the indoor locker 102 can be realized by using the circulation fan, so as to improve the uniformity of temperature distribution in the indoor locker 102 . In addition, according to user needs, the indoor locker 102 may be a horizontal cabinet, or a vertical cabinet, or a wall-mounted cabinet.

And for the outdoor unit 101, the compressor 1, the condenser 2 and the fan 10 constitute the outdoor unit for the split refrigeration equipment, the compressor 1, the condenser 2 and the fan 10 are arranged in the outdoor cabinet 101 Among them, the fan 10 is arranged between the compressor 1 and the condenser 2, and an air duct (not marked) is arranged between the fan 10 and the compressor 1 . Specifically, the compressor 1, the condenser 2, and the fan 10 are arranged on the same straight line, and the fan 10 sucks wind from the side of the condenser 2 and blows it to the compressor 1, which not only considers the head of the fan, but also ensures that the compressor and the condenser The heat dissipation effect of the device achieves the purpose of energy saving. The fan 10 is located between the condenser 2 and the compressor 1. When the fan 2 inhales air, it dissipates heat to the condenser 2. At the same time, the fan 10 can inhale air from the periphery of the condenser 2, so the temperature of the air blown out is relatively low and sent to the compressor. After 1, the heat dissipation effect is better. Further, a slope 1011 is formed on the upper surface of the outdoor cabinet 101, a wind cover 1012 is arranged between the fan 10 and the outdoor cabinet 101, and the wind cover 1012 and the outdoor cabinet 101 The bottom surface, the two side walls and the slope surface 1011 constitute the air channel. Preferably, the air cover 1012 is a circular arc structure, and the air channel is sequentially formed with air channels along the direction from the fan 10 to the compressor 1. A diverging section (unmarked) and an air duct converging section (unmarked); wherein, along the direction from the fan 10 to the compressor 1, the cross-sectional area of the air duct diverging section gradually increases, and the air duct The cross-sectional area of the tapered section decreases gradually, and the ratio of the length W2 of the tapered section of the air duct to the length W1 of the tapered section of the air duct is 1: (3-5). Specifically, the air duct changes the cross section of the air volume first so that the wind spreads to the entire air duct section, and then the air duct cross section shrinks. At this time, the wind speed gradually rises and when it blows to the surface of the compressor 1, the wind speed is greater than the wind speed at the outlet of the fan 10. , increasing the heat transfer coefficient of the compressor 1 surface.

Based on the above technical solution, optionally, in order to improve energy efficiency and refrigeration performance, and expand the refrigeration temperature range to improve versatility, the indoor lockers 102 are divided into shallow low-temperature lockers and deep low-temperature lockers. The end evaporator is divided into a shallow low temperature evaporator 4 and a deep low temperature evaporator 5, the shallow low temperature evaporator 4 is set in the shallow low temperature locker, and the deep low temperature evaporator 4 is set in the deep low temperature locker 5; and the refrigeration system also includes a gas-liquid separator 3, a first regenerator 7 and a heat exchanger 6; the first regenerator 7 is provided with a first capillary 71 and a first The heat recovery pipe 72, the outlet of the condenser 2 is connected to the inlet of the gas-liquid separator 3; the gas outlet of the gas-liquid separator 3 is connected to the first heat exchange channel of the heat exchanger 6, the The first heat exchange channel is connected to the inlet of the deep low-temperature evaporator 5 through the second capillary 82; the liquid outlet of the gas-liquid separator 3 is connected to the inlet of the shallow low-temperature evaporator 4 through the first capillary 71 The outlet of the shallow low-temperature evaporator 4 is connected to the second heat exchange channel of the heat exchanger 6, and the second heat exchange channel and the outlet of the deep-low temperature evaporator 5 respectively pass through the first heat return pipe 72 It is connected with the inlet of the compressor 1. Specifically, the refrigerant is compressed by the compressor 1 to form a high-temperature, high-pressure superheated refrigerant gas, and the refrigerant gas enters the condenser 2 for condensation. Using the difference in dew point temperature of the high and low boiling point refrigerants in the refrigerant, the refrigerant gas condenses to form a rich Two-phase refrigerant containing high-boiling refrigerant liquid and low-boiling refrigerant gas, the refrigerant enters the gas-liquid separator 3 for separation. The liquid-phase refrigerant rich in high-boiling point refrigerant is output from the liquid outlet of the gas-liquid separator 3, and after throttling through the first capillary 71, it enters the shallow low-temperature evaporator 4 for heat exchange and forms a two-phase refrigerant that enters the exchange The heat is further exchanged into saturated refrigerant gas in the heat exchanger 6, and then the refrigerant gas enters the first heat recovery pipe 72 in the first regenerator 7, and the first heat recovery pipe 72 exchanges heat with the first capillary tube 71; the gas phase refrigerant first Entering the heat exchanger 6 to absorb the cooling capacity of the refrigerant output by the low-temperature evaporator 4 to form a liquid-phase refrigerant, and the liquid-phase refrigerant is throttled by the second capillary tube 81 and then enters the deep-low-temperature evaporator 5 for heat exchange to form a gas refrigerant The refrigerant gas flows into the first heat recovery pipe 72 , and finally, the refrigerant gas in the first heat recovery pipe 72 is sent back to the compressor 1 . Preferably, the multi-temperature zone refrigeration cycle system in this embodiment further includes a second regenerator 8, and the second regenerator 8 is provided with the second capillary tube 81 and the second regenerator tube 82 for mutual heat exchange, so that The outlet of the deep-low temperature evaporator 5 and the second heat exchange channel are respectively connected to the first heat return pipe 72 through the second heat return pipe 82 . Specifically, the gas refrigerant formed after heat exchange in the deep-low temperature evaporator 5 and the refrigerant transported by the second heat exchange channel enter into the second heat return pipe 82 of the second regenerator 8 , and the second heat return pipe 82 is connected to the second After the capillary tube 81 performs heat exchange, the cooling temperature of the deep-low temperature evaporator 5 can be lowered even more, a lower cooling effect can be obtained, and energy consumption can be more effectively used to improve energy efficiency. Specifically, the two evaporators are equipped with corresponding regenerators. The regenerators can recycle the cooling capacity of the refrigerant in the return air to improve the energy utilization rate of the system and do not require complicated control procedures. Product performance is guaranteed.

In actual use, the shallow low-temperature evaporator 4 is used for refrigeration or conventional freezing, while the deep low-temperature evaporator 5 can not only be used for conventional freezing, but also can achieve deep freezing, and can achieve a large span with different refrigerants. Refrigeration in a temperature range, the multi-temperature zone refrigeration cycle system in this embodiment uses a mixed refrigerant, and the mixed refrigerant includes a variety of refrigerants, for example: the mixed refrigerant is a mixture of R600a and R290; or, the mixed refrigerant The refrigerant is a mixture of R600 and R290; or, the mixed refrigerant is a mixture of R600a and R600; or, the mixed refrigerant is a mixture of R600a and R170; or, the mixed refrigerant is a mixture of R290 and R170; Alternatively, the mixed refrigerant is a mixture of R600a, R290 and R170. Different storage temperature zones can be formed through different non-azeotropic mixed refrigerants. The working medium pair R600a/R290: can realize the storage temperature zone of -18~-30℃ and the storage temperature zone of -30~-40℃; the working medium pair R600 /R290: can realize the storage temperature zone of -6~-18℃ and -30~-40℃; working fluid pair R600/R600a: can realize the storage temperature zone of 0~9℃ and -6~-12℃ Working medium pair R600a/R170: can realize -18~-30℃ storage temperature zone and -40~-60℃ storage temperature zone; working medium pair R290/R170: can realize -20~-40℃ storage temperature zone and -40~-60℃ storage temperature zone, etc.

Among them, according to the setting of different numbers of temperature zones, both the shallow low-temperature evaporator 4 and the deep-low temperature evaporator 5 can be composed of multiple sub-evaporators, and the sub-evaporators can be combined in series or in parallel. In addition, the performance entity of the heat exchanger 6 can be a plate heat exchanger or a casing heat exchanger.

By sending the gaseous and liquid refrigerants in the gas-liquid separator to different evaporators, the gaseous refrigerant will be sent to the deep-low temperature evaporator through the heat exchanger for deep-low temperature refrigeration, while the liquid refrigerant will pass through the capillary section. After flowing into the shallow low-temperature evaporator for shallow low-temperature refrigeration, and in order to effectively widen the range of temperature difference, the refrigerant output from the shallow low-temperature evaporator undergoes heat exchange with the refrigerant entering the shallow low-temperature evaporator. Exchange, so that the refrigeration temperature of the shallow low-temperature evaporator is lower, and the effect of multi-temperature zone refrigeration is realized, and no complicated control program is required. The heat exchanger can effectively improve energy efficiency, reduce energy consumption, and realize the improvement of split refrigeration equipment. High energy utilization and refrigeration performance, expanding the refrigeration temperature range to improve versatility.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (10)

1. A split-type refrigeration equipment, comprising a refrigeration system and a blower fan, said refrigeration system comprising a compressor, a condenser, a throttling device and a cold-end evaporator, characterized in that it also includes an outdoor casing and a plurality of independent indoor locker, the compressor, the condenser and the fan are arranged in the outdoor cabinet, the fan is arranged between the compressor and the condenser, the fan and the compressor There are air ducts between the machines; the indoor lockers are divided into shallow low-temperature lockers and deep low-temperature lockers, the cold end evaporators are divided into shallow low-temperature evaporators and deep low-temperature evaporators, and the shallow low-temperature The shallow low-temperature evaporator is arranged in the locker, and the deep-low temperature evaporator is arranged in the deep-low temperature locker; the throttling device includes a first capillary tube and a second capillary tube, and the refrigeration system also includes A gas-liquid separator, a first regenerator and a heat exchanger; the first regenerator is provided with the first capillary and the first heat regenerator for mutual heat exchange, and the outlet of the condenser is connected to the gas The inlet of the liquid separator is connected; the gas outlet of the gas-liquid separator is connected to the first heat exchange channel of the heat exchanger, and the first heat exchange channel is connected to the deep low temperature evaporator through the second capillary tube The inlet of the gas-liquid separator is connected to the inlet of the shallow low-temperature evaporator through the first capillary tube, and the outlet of the shallow low-temperature evaporator exchanges heat with the second heat exchanger of the heat exchanger. Channel connection, the second heat exchange channel and the outlet of the cryogenic evaporator are respectively connected to the first heat return pipe, and the first heat return pipe is connected to the inlet of the compressor. 2. The split refrigeration device according to claim 1, wherein the compressor, the fan and the condenser are arranged on the same straight line. 3. The split-type refrigeration equipment according to claim 1, wherein a slope is formed on the upper surface of the outdoor casing, a wind cover is arranged between the fan and the outdoor casing, and the wind cover The cover forms the air duct with the bottom surface, the two side walls and the slope surface of the outdoor cabinet. 4. The split-type refrigeration equipment according to claim 3, wherein the air cover is in an arc-shaped structure, and the air duct is sequentially formed with an air duct gradual expansion section along the direction from the fan to the compressor and an air duct tapering section; wherein, along the direction from the fan to the compressor, the cross-sectional area of the air duct tapering section gradually increases, and the cross-sectional area of the air duct tapering section gradually decreases. 5 . The split refrigeration device according to claim 4 , wherein the length ratio of the expanding section of the air duct to the tapering section of the air duct is 1: (3-5). 6 . 6. The split refrigeration device according to claim 1, characterized in that, the indoor locker is also provided with a circulating fan; and/or, the indoor locker is a horizontal cabinet or a vertical cabinet cabinet, or wall-mounted cabinet. 7. The split refrigeration device according to claim 1, further comprising a second regenerator, the second regenerator is provided with the second capillary tube and the second regenerator tube for mutual heat exchange , the second heat exchange channel and the outlet of the cryogenic evaporator are respectively connected to the second heat return pipe, and the second heat return pipe is connected to the first heat return pipe. 8. The split refrigeration device according to claim 1, wherein the shallow low-temperature evaporator comprises a plurality of shallow low-temperature sub-evaporators arranged in parallel, or the shallow low-temperature evaporator comprises a plurality of series-connected A plurality of low-temperature sub-evaporators arranged; the deep-low temperature evaporator includes a plurality of deep-low sub-evaporators arranged in parallel, or, the deep-low temperature evaporator includes a plurality of deep-low sub-evaporators arranged in series device. 9. The split-type refrigeration device according to claim 1, wherein the split-type refrigeration device uses a mixed refrigerant, and the mixed refrigerant includes multiple refrigerants. 10. The split refrigeration equipment according to claim 9, characterized in that, the mixed refrigerant is a mixture of R600a and R290; or, the mixed refrigerant is a mixture of R600 and R290; or, the mixed refrigerant The refrigerant is a mixture of R600a and R600; or, the mixed refrigerant is a mixture of R600a and R170; or, the mixed refrigerant is a mixture of R290 and R170; or, the mixed refrigerant is a mixture of R600a, R290 and R170 mixture.