CN206222789U - Air cooling refrigeration equipment - Google Patents

Abstract

The utility model provides an air-cooled refrigeration equipment, which includes a refrigeration system and a fan. The refrigeration system includes a compressor, a hot-end heat exchanger, a throttling device and a cold-end heat exchanger, and also includes an outdoor casing and a plurality of An independent indoor locker, the compressor, the hot-end heat exchanger and the fan are arranged in the outdoor casing; the indoor locker is provided with an air supply channel, and the air supply channel An air inlet and an air outlet are provided, and a circulating fan and the cold end heat exchanger are arranged in the air supply channel. Improve the convenience and versatility of the air-cooled refrigeration equipment, and improve the comfort and experience of users.

Description

Air-cooled refrigeration equipment

technical field

The utility model relates to refrigeration equipment, in particular to an air-cooled 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, hot-end heat exchanger and fan are arranged in the machine compartment. Frozen or refrigerated items. During actual use, the operation of the compressor and fan in the machine compartment will generate noise and heat, resulting in poor comfort and experience for users of refrigeration equipment in the prior art, and the wind generated by the fan is directly blown to the hot end If the heat exchangers are scattered, the air volume of the fan will not be fully utilized, and the heat dissipation effect will be poor; at the same time, the storage rooms are all set in the same box, and the user needs to configure multiple independent refrigeration equipment in different rooms to meet Refrigerated storage requires low convenience and versatility of refrigeration equipment in the prior art.

Utility model content

The technical problem to be solved by the utility model is: to provide an air-cooled refrigeration device, to improve the convenience and versatility of the air-cooled refrigeration device, and to improve user comfort and experience.

The technical solution provided by the utility model is an air-cooled refrigeration equipment, including a refrigeration system and a fan, and the refrigeration system includes a compressor, a hot-end heat exchanger, a throttling device, and a cold-end heat exchanger, and is characterized in that , also includes an outdoor cabinet and a plurality of independent indoor storage cabinets, the compressor, the hot end heat exchanger and the fan are arranged in the outdoor cabinet; the indoor storage cabinet is provided with An air supply channel, the air supply channel is provided with an air inlet and an air outlet, and a circulating fan and the cold end heat exchanger are arranged in the air supply channel.

The air-cooled refrigeration equipment provided by the utility model adopts the outdoor casing to arrange the components such as the compressor, the hot-end heat exchanger and the fan on the outdoor side, so that the noise and heat generated by the compressor and the fan will not affect the indoor side. , which can effectively improve the comfort and experience of users; and, since the air duct is formed between the fan and the compressor, during the operation of the fan, the external wind is sucked into the fan through the heat exchanger at the hot end, and the airflow output by the fan passes through The air flow conveyed by the air duct can further dissipate heat from the compressor. The heat exchange area between the air and the compressor is increased from the front to the entire surface of the compressor, which increases the heat exchange area, thus improving the heat exchange of the entire compressor. thermal effect and improve the energy efficiency of the system. In addition, due to the adoption of multiple independent indoor lockers, users can place different indoor lockers in different rooms according to needs, so as to improve the convenience and versatility of the air-cooled refrigeration equipment.

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 air-cooled refrigeration equipment of the present invention.

Fig. 2 is a schematic diagram of an embodiment of the air-cooled refrigeration equipment of the present invention.

Fig. 3 is a schematic diagram of the structure of the outdoor unit in the embodiment of the air-cooled refrigeration equipment of the present invention.

Fig. 4 is a schematic structural diagram of an indoor locker in an embodiment of the air-cooled 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 1-4, the air-cooled refrigeration equipment in this embodiment adopts a split 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 locker 102 is placed on the inner side of the wall 100, wherein components such as the compressor 1 of the refrigeration system, the heat exchanger 2 at the hot end, the throttling device and the fan 10 are arranged in the outdoor cabinet 101, and the cold end of the refrigeration system The heat exchangers are provided in the corresponding indoor lockers 102 .

Specifically, during the actual use of the air-cooled refrigeration equipment in this embodiment, since the compressor 1 is arranged in the external outdoor casing 101, the noise and heat generated by the operation of the compressor 1 will not affect the indoor side, and it 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. According to user needs, the indoor locker 102 can be a horizontal cabinet, or a vertical cabinet, or a wall-mounted cabinet. Preferably, in order to make full use of the condensation heat of the hot end heat exchanger 2, the hot end heat exchanger 2 has a refrigerant pipeline 21 and a water exchange pipeline 22 for mutual heat exchange, wherein the refrigerant pipeline 21 is connected in the refrigeration circuit to transport Refrigerant, while the water exchange pipeline 22 is connected to the external water supply end, and external water enters the water exchange pipeline 22 for heat exchange to form hot water, so as to fully utilize the heat energy of condensation and improve energy efficiency.

Wherein, for the indoor locker 102, an air supply channel 1020 is provided, and the air supply channel 1020 has an air outlet 1021 and an air inlet 1022. The air supply channel 1020 is also provided with a circulation fan 103, and the circulation fan 103 can be used to realize indoor ventilation. The air in the locker 102 circulates to improve the uniformity of temperature distribution in the indoor locker 102 .

In addition, the outdoor unit for air-cooled refrigeration equipment is composed of the outdoor machine casing 101, the compressor 1, the hot-end heat exchanger 2 and the fan 10, and the compressor 1, the hot-end heat exchanger 2 and the fan 10 It is arranged in the outdoor machine casing 101, the fan 10 is arranged between the compressor 1 and the hot end heat exchanger 2, and an air duct is arranged between the fan 10 and the compressor 1 ( unmarked). Specifically, the compressor 1, the hot-end heat exchanger 2, and the fan 10 are arranged on the same straight line, and the fan 10 sucks air from the side of the hot-end heat exchanger 2 and blows it to the compressor 1. It can ensure the heat dissipation effect of the compressor and the hot end heat exchanger, and achieve the purpose of energy saving. The fan 10 is located between the hot-end heat exchanger 2 and the compressor 1. When the fan 2 sucks air, it dissipates heat to the hot-end heat exchanger 2. At the same time, the fan 10 can suck air from the periphery of the hot-end heat exchanger 2, and the blown air The air temperature is low, and the heat dissipation effect after being sent to the compressor 1 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 heat exchanger 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 locker is set in the deep low temperature The evaporator 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 A return heat pipe 72, the outlet of the hot end heat exchanger 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 exchanger of the heat exchanger 6 The heat channel is connected, the first heat exchange channel is connected with the inlet of the deep low temperature evaporator 5 through the second capillary tube 82, and the outlet of the deep low temperature evaporator 5 is connected with the inlet of the compressor 1; the gas-liquid The liquid outlet of the separator 3 is connected to the inlet of the shallow low-temperature evaporator 4 through the first capillary 71, and the outlet of the shallow low-temperature evaporator 4 is connected to the second heat exchange channel of the heat exchanger 6, The second heat exchange channel is connected to the inlet of the compressor 1 through the first heat return pipe 72 . Specifically, the refrigerant of the air-cooled refrigeration equipment in this embodiment is compressed by the compressor 1 to form a high-temperature, high-pressure superheated refrigerant gas, and the refrigerant gas enters the hot-end heat exchanger 2 for condensation. The dew point temperature is different, and the refrigerant gas is condensed to form a two-phase refrigerant rich in high-boiling point refrigerant liquid and low-boiling point refrigerant gas, and 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 tube 71, it enters the shallow low-temperature evaporator 4 for heat exchange to form a two-phase refrigerant that enters the heat. The heat is further exchanged into saturated refrigerant gas in the exchanger 6, and then the refrigerant gas enters the first heat return pipe 72 in the first heat regenerator 7, and the first heat return pipe 72 exchanges heat with the first capillary tube 71, and the refrigerant The gas is transported back to the compressor 1 from the first heat return pipe 7; the gas-phase refrigerant first enters the heat exchanger 6 to absorb the cooling capacity of the refrigerant output from the shallow low-temperature evaporator 4, and then forms a liquid-phase refrigerant, which passes through the second capillary tube After 81 throttling, it enters the deep-low temperature evaporator 5 for heat exchange and forms a gas refrigerant that flows back to the compressor 1 . Preferably, the air-cooled refrigeration equipment 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. The deep-low temperature evaporator 5 is connected to the inlet of the compressor 1 through the second heat recovery pipe 82 . Specifically, in the second heat recovery tube 82 of the gas refrigerant second heat recovery device 8 formed after the heat exchange of the deep-low temperature evaporator 5, after the heat exchange between the second heat recovery tube 82 and the second capillary tube 81, the The temperature that can be refrigerated by the deep-low temperature evaporator 5 can obtain a lower-temperature refrigerating effect, and use energy consumption more effectively 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 of the temperature range, the air-cooled refrigeration equipment 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 It 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; or , 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 cooling temperature of the shallow low-temperature evaporator is lower, and the effect of multi-temperature zone cooling is realized, and there is no need to adopt complicated control procedures, while the heat exchanger can effectively improve energy efficiency, reduce energy consumption, and realize the improvement of air-cooled refrigeration. The energy utilization rate of the equipment is high and the refrigeration performance is high, and the refrigeration temperature range is expanded to improve the 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 (9)

1. a kind of air cooling refrigeration equipment, including refrigeration system and blower fan, the refrigeration system include that compressor, hot junction exchange heat Device, throttling arrangement and cool end heat exchanger, it is characterised in that described also including outdoor machine shell and multiple independent indoor lockers Compressor, the hot end heat exchanger and the blower fan are arranged in the outdoor machine shell；It is provided with the indoor locker and is sent Wind passage, the air-supply passage is provided with air inlet and air outlet, and circulating fan and described cold is provided with the air-supply passage End heat exchanger.

2. air cooling refrigeration equipment according to claim 1, it is characterised in that the blower fan be arranged on the compressor and Between the hot end heat exchanger, air channel is provided between the blower fan and the compressor.

3. air cooling refrigeration equipment according to claim 2, it is characterised in that the upper surface of the outdoor machine shell is formed with It is domatic, fan housing, bottom surface of the fan housing with the outdoor machine shell, two side are provided between the blower fan and the outdoor machine shell The air channel is constituted with domatic.

4. air cooling refrigeration equipment according to claim 3, it is characterised in that the fan housing is arc-shaped structure, described Air channel is sequentially formed with air channel divergent segment and air channel converging transition along the blower fan to the compressor direction；Wherein, along the wind Machine to the compressor direction, the area of section of the air channel divergent segment gradually increases, the area of section of the air channel converging transition It is gradually reduced.

5. air cooling refrigeration equipment according to claim 4, it is characterised in that the air channel divergent segment and the air channel are gradually The length ratio of contracting section is 1：（3-5）.

6. according to any described air cooling refrigeration equipment of claim 1-5, it is characterised in that the indoor locker is divided into shallow Low temperature locker and profound hypothermia locker, the cool end heat exchanger are divided into low hypothermia evaporator and profound hypothermia evaporator, described shallow The low hypothermia evaporator is provided with low temperature locker, the profound hypothermia evaporator is provided with the profound hypothermia locker； The throttling arrangement includes the first capillary and the second capillary, and the refrigeration system also includes gas-liquid separator, the first backheat Device and heat exchanger；First capillary and the first product heat cal rod of mutual heat exchange, institute are provided with first regenerator The refrigerant exit for stating hot end heat exchanger is connected with the import of the gas-liquid separator；The gas outlet of the gas-liquid separator and described The first heat exchanger channels connection of heat exchanger, first heat exchanger channels are evaporated by second capillary and the profound hypothermia The import connection of device, the import of the outlet connection compressor of the profound hypothermia evaporator；The gas-liquid separator goes out liquid Mouthful be connected with the import of the low hypothermia evaporator by first capillary, the outlet of the low hypothermia evaporator with it is described The second heat exchanger channels connection of heat exchanger, second heat exchanger channels are entered by first product heat cal rod and the compressor Mouth connection.

7. air cooling refrigeration equipment according to claim 6, it is characterised in that also including the second regenerator, described second Second capillary and the second product heat cal rod of mutual heat exchange are provided with regenerator, the profound hypothermia evaporator is by described Second product heat cal rod is connected with the import of the compressor.

8. air cooling refrigeration equipment according to claim 6, it is characterised in that the air cooling refrigeration equipment is using mixing Refrigerant, the mix refrigerant includes various refrigerants.

9. air cooling refrigeration equipment according to claim 8, it is characterised in that the mix refrigerant be R600a and The mixture of R290；Or, the mix refrigerant is the mixture of R600 and R290；Or, the mix refrigerant is The mixture of R600a and R600；Or, the mix refrigerant is the mixture of R600a and R170；Or, the mixing system Cryogen is the mixture of R290 and R170；Or, the mix refrigerant is the mixture of R600a, R290 and R170.