A refrigeration unit with cold and heat recovery function

Abstract

The present invention belongs to the technical field of refrigeration units, and in particular, relates to a refrigeration unit with a cold and heat recovery function, including a cabinet, an air compressor, a condenser and an evaporator are installed in the cabinet, the air compressor and the condenser are connected through a first connecting pipe, the condenser and the evaporator are connected through a second connecting pipe, and an expansion valve is also installed on the second connecting pipe, and also includes a ventilation and heat dissipation mechanism and a heat energy recovery mechanism. The present invention can quickly discharge the heat generated during the operation of the condenser, assist the condenser to work stably, and can effectively utilize the heat energy. When the refrigerator is working, it can quickly remove the ice generated on the surface of the evaporator to ensure the use quality of the evaporator and increase the service life of the evaporator. The excess cold overflowed from the evaporator can be used as energy for precooling the compressed air between the expansion valve and the evaporator, and the lost cold can be effectively utilized.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration units, and in particular relates to a refrigeration unit with a cold and heat recovery function. Background Art

[0002] A refrigeration unit is mainly composed of four basic components: a compressor, a condenser, an expansion valve and an evaporator. The compressor compresses low-temperature and low-pressure refrigerant vapor into high-temperature and high-pressure vapor, and then sends it to the condenser. In the condenser, the refrigerant vapor releases heat to the external environment (usually air or cooling water) and condenses into a high-pressure liquid. The high-pressure liquid is throttled and reduced in pressure by the expansion valve, and becomes a low-temperature and low-pressure liquid and enters the evaporator. In the evaporator, the refrigerant liquid absorbs the heat of the cooled medium (such as air, water, etc.) and vaporizes into a low-temperature and low-pressure vapor, which is then sucked into the compressor. This cycle repeats to achieve refrigeration. For example, the patent with patent announcement number CN110762890A proposes a refrigeration unit with a heat and cold recovery function.

[0003] The condenser in the refrigeration unit will emit heat when working. In order to ensure the stable operation of the condenser, a fan is often used to dissipate heat from the condenser. The air-cooled condenser directly discharges heat into the atmosphere, which will increase the local temperature. In areas with dense buildings such as cities, if a large number of condensers are used to dissipate heat, a "heat island effect" will be formed, resulting in a large amount of heat source waste. In addition, frost or ice is prone to form on the surface of the evaporator when in use. When frost or ice forms on the surface of the evaporator, the frost and ice layers act as heat insulation, which hinders the transfer of heat from the cooled medium (such as air or liquid) to the refrigerant, making the evaporator unable to effectively absorb heat. Its performance is easily affected over a long period of time, making it inconvenient to recycle its energy, and easily causing a waste of resources. Summary of the invention

[0004] The object of the present invention is to provide a refrigeration unit with a cold and heat recovery function in order to solve the above problems.

[0005] To achieve the above object, the present invention adopts the following technical scheme: a refrigeration unit with cold and heat recovery function, comprising a cabinet, an air compressor, a condenser and an evaporator are installed in the cabinet, the air compressor and the condenser are connected through a first connecting pipe, the condenser and the evaporator are connected through a second connecting pipe, the second connecting pipe is also equipped with an expansion valve, and further comprises: A ventilation and heat dissipation mechanism is arranged on the upper side of the condenser; A heat recovery mechanism is installed in the ventilation and heat dissipation mechanism; A deicing and cleaning mechanism is fixedly installed in the cabinet, arranged corresponding to the position of the evaporator, and is connected to the ventilation and heat dissipation mechanism; a knocking auxiliary mechanism, mounted on the de-icing and cleaning mechanism; A cold energy recovery mechanism is fixedly installed in the cabinet and is arranged corresponding to the positions of the evaporator and the second connecting pipe; The PLC controller is fixedly installed in the cabinet and is electrically connected to the ventilation and heat dissipation mechanism, the heat energy recovery mechanism, the deicing and cleaning mechanism, the knocking auxiliary mechanism and the cold energy recovery mechanism respectively.

[0006] In the above-mentioned refrigeration unit with heat recovery function, the ventilation and heat dissipation mechanism includes an exhaust shell, a plurality of exhaust heads are evenly fixedly connected to the lower end of the exhaust shell, an exhaust pipe is fixedly connected to the exhaust shell, and an exhaust pump is installed on the exhaust pipe.

[0007] In the above-mentioned refrigeration unit with heat recovery function, the heat energy recovery mechanism includes a serpentine heat exchange tube fixedly installed in the exhaust shell, both ends of the serpentine heat exchange tube extend out of the exhaust shell, and are respectively fixedly connected with a water inlet pipe and a water outlet pipe, and a water pump is installed on the water inlet pipe.

[0008] In the above-mentioned refrigeration unit with heat recovery function, the de-icing and cleaning mechanism includes two side panels symmetrically fixedly connected to the inner wall of the cabinet, a reciprocating screw is rotatably connected between the two side panels, the rod wall of the reciprocating screw is threadedly sleeved with a reciprocating seat, the lower end of the reciprocating seat is fixedly connected to a reciprocating plate of an L-shaped structure, a plurality of ventilation cavities are equidistantly arranged inside the reciprocating plate, the inner wall of the reciprocating plate is fixedly connected to a plurality of nozzles connected to the ventilation cavities, the outer wall of one of the side panels is fixedly connected to a power shell, one end of the reciprocating screw extends through the power shell and is fixedly connected to a power wind wheel, the power shell is fixedly connected to the exhaust pipe, the outer wall of the reciprocating plate is fixedly connected to a multi-way pipe connected to a plurality of ventilation cavities, and one end of the exhaust pipe is fixedly connected to the multi-way pipe through an elastic telescopic tube.

[0009] In the above-mentioned refrigeration unit with heat and cold recovery function, the knocking auxiliary mechanism includes a plurality of knocking rods movably inserted into the side wall of the reciprocating plate, the knocking rod is fixedly connected with a knocking plate at one end outside the reciprocating plate, and the knocking plate and the reciprocating plate are fixedly connected with a return spring sleeved outside the knocking rod, the outer wall of the reciprocating plate is fixedly connected with a cover shell sleeved outside the plurality of knocking plates, a vertically arranged transmission shaft is rotatably connected inside the cover shell, the transmission shaft is located on the inner wall of the cover shell and is fixedly sleeved with a plurality of cams arranged corresponding to the positions of the knocking plates, the upper end of the transmission shaft passes through the upper end of the cover shell and is fixedly connected with a transmission gear, and a transmission rack meshing with the transmission gear is fixedly connected between the two side plates.

[0010] In the above-mentioned refrigeration unit with heat and cold recovery function, the cold energy recovery mechanism includes a heat exchange cylinder fixedly mounted on the second connecting pipe, the inner wall of the cabinet is fixedly connected with a storage cylinder with a sealing sleeve arranged outside the heat exchange cylinder, the storage cylinder is injected with cold storage liquid, and the cylinder wall of the storage cylinder is fixedly sleeved with a plurality of heat exchange fins. The inner wall of the cabinet is also fixedly mounted with a hair dryer located on one side of the storage cylinder, the air inlet of the hair dryer is fixedly connected with an air supply pipe, and the end of the air supply pipe away from the hair dryer is fixedly connected with a suction hood, and the suction hood is arranged on one side of the evaporator.

[0011] In the above-mentioned refrigeration unit with cold and heat recovery function, a guide slide rod is fixedly connected between the two side plates, and a guide slide hole slidably sleeved with the guide slide rod is opened on the side wall of the reciprocating seat.

[0012] In the above-mentioned refrigeration unit with cold and heat recovery function, a bearing seat is fixedly mounted on the outer wall of the reciprocating seat, and the inner wall of the bearing seat is rotatably sleeved on the outer side of the upper end shaft wall of the transmission shaft through a ball bearing.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cabinet, ventilation and heat dissipation mechanism, heat recovery mechanism and condenser, the heat generated during the operation of the condenser can be quickly discharged, and the condenser can be assisted to work stably. The heat energy can be exchanged with water to obtain hot water, and the heat energy can be effectively utilized. The problem of direct discharge of hot air to the external environment causing thermal pollution to the environment is avoided. The power of ventilation and heat dissipation and the power of heat recovery are automatically adjusted based on the working power of the entire refrigerator. The greater the working power of the refrigerator, the higher the working speed and power of the air compressor, condenser and evaporator. Automatic control improves the efficiency of ventilation and heat dissipation to ensure the stable operation of the condenser, and improves the heat exchange efficiency to help more heat energy be fully utilized.

[0014] 2. Through the de-icing and cleaning mechanism, knocking auxiliary mechanism and evaporator, the ice generated on the surface of the evaporator can be quickly removed when the refrigerator is working, ensuring the use quality of the evaporator and increasing the service life of the evaporator. The clean energy uses the air circulation pressure in the ventilation and heat dissipation mechanism as power, and does not require additional equipment for operation, saving energy and being easy to operate. When the working power of the refrigerator is increased, the cleaning efficiency can be improved simultaneously to ensure the timeliness of cleaning.

[0015] 3. By setting up the cold energy recovery mechanism, evaporator and second connecting pipe, the cold energy dissipated by the evaporator can be recovered and utilized as energy for precooling the compressed air between the expansion valve and the evaporator, and the lost cold energy can be effectively utilized. At the same time, it also avoids the problem that too much cold energy in the environment around the evaporator will affect the stability of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a front view cross-sectional structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the ventilation and heat dissipation mechanism of the present invention; Figure 4 It is a top view and cross-sectional structural schematic diagram of the heat energy recovery mechanism of the present invention; Figure 5 It is a structural schematic diagram of the deicing and cleaning mechanism of the present invention; Figure 6 yes Figure 5 Side view of the cross section; Figure 7 It is a structural schematic diagram of the cold energy recovery mechanism of the present invention.

[0017] In the figure: 1 cabinet, 2 ventilation and heat dissipation mechanism, 21 exhaust shell, 22 exhaust head, 23 exhaust pipe, 24 exhaust pump, 3 heat recovery mechanism, 31 serpentine heat exchange tube, 32 water inlet pipe, 33 water outlet pipe, 34 water pump, 4 de-icing cleaning mechanism, 41 side plate, 42 reciprocating screw, 43 reciprocating seat, 44 reciprocating plate, 45 ventilation cavity, 46 jet head, 47 power shell, 48 power wind wheel, 49 multi-channel pipe, 410 elastic telescopic pipe, 411 guide slide bar, 5 knock A striking auxiliary mechanism, 51 a striking rod, 52 a striking plate, 53 a return spring, 54 a cover, 55 a transmission shaft, 56 a cam, 57 a transmission gear, 58 a transmission rack, 6 a cold energy recovery mechanism, 61 a heat exchange cylinder, 62 a storage cylinder, 63 a cold storage liquid, 64 a heat exchange fin, 65 a blower, 66 an air supply pipe, 67 an expansion and suction hood, 7 an air compressor, 8 a condenser, 9 an evaporator, 10 a first connecting pipe, 11 a second connecting pipe, 12 an expansion valve, and 13 a PLC controller. Implementation

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1-Figure 7 As shown, a refrigeration unit with a cold and heat recovery function includes a cabinet 1, an air compressor 7, a condenser 8 and an evaporator 9 are installed in the cabinet 1, the air compressor 7 and the condenser 8 are connected through a first connecting pipe 10, and the condenser 8 and the evaporator 9 are connected through a second connecting pipe 11, and an expansion valve 12 is also installed on the second connecting pipe 11, and further includes: The ventilation and heat dissipation mechanism 2 is installed on the upper side of the condenser 8. The ventilation and heat dissipation mechanism 2 includes an exhaust shell 21. A plurality of exhaust heads 22 are evenly and fixedly connected to the lower end of the exhaust shell 21. An exhaust pipe 23 is fixedly connected to the exhaust shell 21. An exhaust pump 24 is installed on the exhaust pipe 23, which can quickly discharge the heat generated by the condenser 8 during operation and assist the condenser 8 to work stably.

[0020] The heat recovery mechanism 3 is installed in the ventilation and heat dissipation mechanism 2. The heat recovery mechanism 3 includes a serpentine heat exchange tube 31 fixedly installed in the exhaust shell 21. Both ends of the serpentine heat exchange tube 31 extend through the exhaust shell 21 and are fixedly connected with a water inlet pipe 32 and a water outlet pipe 33 respectively. A water pump 34 is installed on the water inlet pipe 32, which can exchange heat energy with water to obtain hot water, effectively utilize heat energy, and avoid the problem of thermal pollution caused by direct discharge of hot air to the external environment. The power of ventilation and heat dissipation and the power of heat energy recovery are automatically adjusted based on the working power of the entire refrigerator. The greater the working power of the refrigerator, the higher the working speed and power of the air compressor 7, condenser 8 and evaporator 9. Automatic regulation improves the efficiency of ventilation and heat dissipation to ensure the stable operation of the condenser 8, and improves the heat exchange efficiency to help more heat energy be fully utilized.

[0021] The de-icing and cleaning mechanism 4 is fixedly installed in the cabinet 1, corresponding to the position of the evaporator 9, and connected to the ventilation and heat dissipation mechanism 2. The de-icing and cleaning mechanism 4 includes two side panels 41 symmetrically fixedly connected to the inner wall of the cabinet 1, a reciprocating screw 42 is rotatably connected between the two side panels 41, a reciprocating seat 43 is threadedly sleeved on the rod wall of the reciprocating screw 42, and a reciprocating plate 44 of an L-shaped structure is fixedly connected to the lower end of the reciprocating seat 43. A plurality of ventilation cavities 45 are equidistantly arranged inside the reciprocating plate 44, and a plurality of nozzles 46 connected to the ventilation cavities 45 are fixedly connected to the inner wall of the reciprocating plate 44, and a power shell 47 is fixedly connected to the outer wall of one of the side panels 41, and one end of the reciprocating screw 42 penetrates into the power shell 47 and is fixedly connected The power impeller 48 and the power shell 47 are fixedly connected to the exhaust pipe 23. The outer wall of the reciprocating plate 44 is fixedly connected with a multi-way pipe 49 connected with multiple ventilation chambers 45. One end of the exhaust pipe 23 is fixedly connected with the multi-way pipe 49 through an elastic telescopic tube 410. A guide slide rod 411 is also fixedly connected between the two side plates 41. The side wall of the reciprocating seat 43 is provided with a guide slide hole slidably connected with the guide slide rod 411. When the refrigerator is working, the ice generated on the surface of the evaporator 9 can be quickly removed, thereby ensuring the use quality of the evaporator 9 and improving the service life of the evaporator 9. The clean energy utilizes the air circulation pressure in the ventilation and heat dissipation mechanism 2 as power, and does not require additional equipment for operation, saving energy and being easy to operate.

[0022] The knocking auxiliary mechanism 5 is installed on the de-icing cleaning mechanism 4. The knocking auxiliary mechanism 5 includes a plurality of knocking rods 51 movably inserted in the side wall of the reciprocating plate 44. The knocking rod 51 is fixedly connected to a knocking plate 52 at one end outside the reciprocating plate 44. The knocking plate 52 and the reciprocating plate 44 are fixedly connected to a return spring 53 sleeved outside the knocking rod 51 on the opposite side. The outer wall of the reciprocating plate 44 is fixedly connected to a cover 54 that covers the plurality of knocking plates 52. A vertically arranged transmission shaft 55 is rotatably connected in the cover 54. The transmission shaft 55 is located on the inner wall of the cover 54. A plurality of cams 56 are fixedly sleeved and arranged corresponding to the positions of the knocking plates 52. The upper end of the transmission shaft 55 passes through the upper end of the cover shell 54 and is fixedly connected with a transmission gear 57. A transmission rack 58 meshing with the transmission gear 57 is fixedly connected between the two side plates 41. A bearing seat is fixedly installed on the outer wall of the reciprocating seat 43, and the inner wall of the bearing seat is rotatably sleeved on the outer side of the upper end shaft wall of the transmission shaft 55 through a ball bearing. When cleaning the outside of the evaporator 9, mechanical knocking assistance can be performed to ensure that the ice is better detached from the evaporator 9 and the cleaning quality is improved.

[0023] The cold energy recovery mechanism 6 is fixedly installed in the cabinet 1 and is arranged corresponding to the position of the evaporator 9 and the second connecting pipe 11. The cold energy recovery mechanism 6 includes a heat exchange cylinder 61 fixedly installed on the second connecting pipe 11. The inner wall of the cabinet 1 is fixedly connected with a storage cylinder 62 with a sealing sleeve arranged outside the heat exchange cylinder 61. The storage cylinder 62 is injected with cold storage liquid 63. The cylinder wall of the storage cylinder 62 is fixedly sleeved with a plurality of heat exchange fins 64. The inner wall of the cabinet 1 is also fixedly installed with a hair dryer 65 located on one side of the storage cylinder 62. The air inlet of the hair dryer 65 is fixedly connected with an air supply pipe 66. The end of the air supply pipe 66 away from the hair dryer 65 is fixedly connected with an expansion and suction hood 67. The expansion and suction hood 67 is arranged on one side of the evaporator 9, which can recycle the cold energy dissipated by the evaporator 9 as energy for pre-cooling the compressed air between the expansion valve 12 and the evaporator 9, effectively utilize the lost cold energy, and also avoid the problem that too much cold energy in the environment around the evaporator 9 will affect the stability of the use of the evaporator 9.

[0024] The PLC controller 13 is fixedly installed in the cabinet 1 and is electrically connected to the ventilation and heat dissipation mechanism 2, the heat energy recovery mechanism 3, the deicing and cleaning mechanism 4, the knocking auxiliary mechanism 5 and the cold energy recovery mechanism 6 respectively.

[0025] The operating principle of the present invention is described as follows: the air compressor 7 compresses the low-temperature and low-pressure refrigerant vapor into high-temperature and high-pressure vapor, and then sends it to the condenser 8. In the condenser 8, the refrigerant vapor releases heat to the external environment and condenses into a high-pressure liquid. The high-pressure liquid is throttled and depressurized by the expansion valve 12, and becomes a low-temperature and low-pressure liquid and enters the evaporator 9. In the evaporator 9, the refrigerant liquid absorbs the heat of the cooling medium and vaporizes to become a low-temperature and low-pressure vapor; In the condenser 8, since heat release will cause the condenser 8 to emit a large amount of heat, the PLC controller 13 controls the exhaust pump 24 to work, and the exhaust pump 24 cooperates with the exhaust pipe 23, the exhaust shell 21 and the exhaust head 22 to quickly guide the heat away, so as to avoid the problem that the overheated environment around the condenser 8 will affect the stable operation of the condenser 8. In the process of guiding the heat away through the hot air flow, the PLC controller 13 controls the water pump 34 to work synchronously, and the water pump 34 cooperates with the water inlet pipe 32 and the water outlet pipe 33 to transport water in the serpentine heat exchange tube 31, and then the heat in the absorbed hot air is exchanged with the water in the serpentine heat exchange tube 31, and the heat energy is recycled and utilized. The hot water can be used where other facilities need it. It is additionally explained that when the refrigerator needs to work with a larger air volume, the PLC controller 13 controls the air compressor 7 to work at a higher power. At the same time, the PLC controller 13 will control the exhaust pump 24 and the water pump 34 to work at a higher power, so as to improve the ventilation and heat dissipation performance of the condenser 8, and make more effective use of heat energy to complete more heat exchange work; The air after heat exchange is transported to the power shell 47 through the exhaust pump 24, and then drives the power wind wheel 48 to rotate. The power wind wheel 48 drives the reciprocating screw 42 to rotate synchronously. The reciprocating seat 43 moves back and forth through the threaded sleeve effect of the reciprocating screw 42 and the reciprocating seat 43, and the limiting and guiding effect of the guide slide 411 on the reciprocating seat 43, so that the reciprocating seat 43 drives the reciprocating plate 44 to move back and forth on one side of the evaporator 9, and the exhaust pipe 23 further transports the air to the multiple ventilation cavities 45 in the reciprocating plate 44 through the multi-channel pipe 49, and sprays it on the surface of the evaporator 9 through the small-caliber nozzle 46, forming a clean wind flow, sweeping the surface of the evaporator 9, and blowing off the frost and ice condensed on the surface of the evaporator 9, ensuring the use quality of the evaporator 9, and no additional energy is required for driving, saving energy, and easy to control; When the reciprocating plate 44 moves, the fixed transmission rack 58 and the transmission gear 57 will be relatively transmitted, thereby driving the transmission shaft 55 to drive the multiple cams 56 to rotate continuously. When the protruding part of the cam 56 is pressed on the knocking plate 52, the knocking plate 52 will drive the knocking rod 51 to overcome the elastic force of the return spring 53 and move toward the surface of the evaporator 9, knocking the ice on the surface of the evaporator 9, helping the ice to fall off, and achieving better cleaning of the evaporator 9. When the protruding part of the cam 56 leaves the knocking plate 52, the reciprocating plate 44 moves. Under the action of the positioning spring 53, the knocking plate 52 drives the knocking rod 51 to move back, so that the knocking rod 51 can continuously knock on the evaporator 9, thereby assisting the cleaning of the evaporator 9. It is also noted that when the air volume of the refrigerator is increased and the power of the exhaust pump 24 is increased synchronously, the driving force of the exhaust pipe 23 on the power wind wheel 48 is greater, thereby making the self-rotation speed of the reciprocating screw 42 faster, thereby increasing the speed of cleaning the surface of the evaporator 9, so that the cleaning performance is improved synchronously, and the evaporator 9 is assisted to work better; When the refrigerator is working, the PLC controller 13 controls the blower 65 to work synchronously. The air inlet of the blower 65 cooperates with the air supply pipe 66 and the expansion and suction hood 67 to pump the cold air around the evaporator 9, and blow the cold air outside the storage cylinder 62. The multiple heat exchange fins 64 provided on the storage cylinder 62 can transfer the cold energy in the cold air to the cold storage liquid 63. The cold energy of the cold storage liquid 63 is transferred to the heat exchange cylinder 61, and the refrigerator liquid entering the evaporator 9 from the expansion valve 12 is pre-cooled, thereby improving the refrigeration efficiency. It can effectively recycle the excess cold energy overflowed when the evaporator 9 is working, assisting the refrigerator to work better, saving energy and protecting the environment. It should be noted that when the working power of the refrigerator is increased, the PLC controller 13 synchronously controls the working power of the blower 65 to increase, and recycles the cold energy more timely and effectively.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration unit with a cold and heat recovery function, comprising a cabinet (1), wherein an air compressor (7), a condenser (8) and an evaporator (9) are installed in the cabinet (1), wherein the air compressor (7) and the condenser (8) are connected via a first connecting pipe (10), and the condenser (8) and the evaporator (9) are connected via a second connecting pipe (11), wherein an expansion valve (12) is also installed on the second connecting pipe (11), characterized in that: The invention also comprises: a ventilation and heat dissipation mechanism (2) arranged on the upper side of the condenser (8); a heat recovery mechanism (3) arranged in the ventilation and heat dissipation mechanism (2); a deicing and cleaning mechanism (4) fixedly arranged in the cabinet (1), arranged corresponding to the position of the evaporator (9), and connected to the ventilation and heat dissipation mechanism (2); a knocking auxiliary mechanism (5) arranged on the deicing and cleaning mechanism (4); a cold energy recovery mechanism (6) fixedly arranged in the cabinet (1), and arranged corresponding to the positions of the evaporator (9) and the second connecting pipe (11); and a PLC controller (13) fixedly arranged in the cabinet (1), and electrically connected to the ventilation and heat dissipation mechanism (2), the heat recovery mechanism (3), the deicing and cleaning mechanism (4), the knocking auxiliary mechanism (5), and the cold energy recovery mechanism (6).

2. A refrigeration unit with cold and heat recovery function according to claim 1, characterized in that: The ventilation and heat dissipation mechanism (2) comprises an exhaust shell (21), a plurality of exhaust heads (22) are evenly and fixedly connected to the lower end of the exhaust shell (21), an exhaust pipe (23) is fixedly connected to the exhaust shell (21), and an exhaust pump (24) is installed on the exhaust pipe (23).

3. The refrigeration unit with cold and heat recovery function according to claim 2, characterized in that: The heat energy recovery mechanism (3) comprises a serpentine heat exchange tube (31) fixedly mounted in the exhaust shell (21), both ends of the serpentine heat exchange tube (31) extending out of the exhaust shell (21) and being fixedly connected to a water inlet pipe (32) and a water outlet pipe (33) respectively, and a water pump (34) being mounted on the water inlet pipe (32).

4. The refrigeration unit with cold and heat recovery function according to claim 2, characterized in that: The de-icing and cleaning mechanism (4) comprises two side panels (41) symmetrically fixedly connected to the inner wall of the cabinet (1); a reciprocating screw (42) is rotatably connected between the two side panels (41); a reciprocating seat (43) is threadedly sleeved on the rod wall of the reciprocating screw (42); a reciprocating plate (44) with an L-shaped structure is fixedly connected to the lower end of the reciprocating seat (43); a plurality of ventilation cavities (45) are equidistantly arranged inside the reciprocating plate (44); and a plurality of ventilation cavities (45) are fixedly connected to the inner wall of the reciprocating plate (44) and are arranged in communication with the ventilation cavities (45). The jet head (46) comprises a power shell (47) fixedly connected to the outer wall of one of the side plates (41), one end of the reciprocating screw (42) extends through the power shell (47) and is fixedly connected to a power impeller (48), the power shell (47) is fixedly connected to the exhaust pipe (23), the outer wall of the reciprocating plate (44) is fixedly connected to a multi-way pipe (49) connected to a plurality of ventilation chambers (45), and one end of the exhaust pipe (23) is fixedly connected to the multi-way pipe (49) via an elastic telescopic pipe (410).

5. The refrigeration unit with cold and heat recovery function according to claim 4, characterized in that: The knocking auxiliary mechanism (5) comprises a plurality of knocking rods (51) movably inserted into the side wall of the reciprocating plate (44); one end of the knocking rod (51) located outside the reciprocating plate (44) is fixedly connected to a knocking plate (52); a side of the knocking plate (52) opposite to the reciprocating plate (44) is fixedly connected to a return spring (53) sleeved outside the knocking rod (51); and an outer wall of the reciprocating plate (44) is fixedly connected to a cover shell (53) sleeved outside the plurality of knocking plates (52). 54), a vertically arranged transmission shaft (55) is rotatably connected inside the cover shell (54), the transmission shaft (55) is located on the inner wall of the cover shell (54) and is fixedly sleeved with a plurality of cams (56) arranged corresponding to the positions of the knocking plates (52), the upper end of the transmission shaft (55) passes through the upper end of the cover shell (54) and is fixedly connected to a transmission gear (57), and a transmission rack (58) meshing with the transmission gear (57) is fixedly connected between the two side plates (41).

6. The refrigeration unit with cold and heat recovery function according to claim 1, characterized in that: The cold energy recovery mechanism (6) comprises a heat exchange cylinder (61) fixedly mounted on the second connecting pipe (11); a storage cylinder (62) sealed and mounted outside the heat exchange cylinder (61) is fixedly connected to the inner wall of the cabinet (1); a cold storage liquid (63) is injected into the storage cylinder (62); a plurality of heat exchange fins (64) are fixedly inserted into the cylinder wall of the storage cylinder (62); a blower (65) located on one side of the storage cylinder (62) is also fixedly mounted on the inner wall of the cabinet (1); an air inlet of the blower (65) is fixedly connected to an air supply pipe (66); an end of the air supply pipe (66) away from the blower (65) is fixedly connected to an air expansion hood (67); and the air expansion hood (67) is arranged on one side of the evaporator (9).

7. The refrigeration unit with cold and heat recovery function according to claim 4, characterized in that: A guide slide bar (411) is fixedly connected between the two side plates (41), and a guide slide hole slidably sleeved with the guide slide bar (411) is provided on the side wall of the reciprocating seat (43).

8. The refrigeration unit with cold and heat recovery function according to claim 5, characterized in that: A bearing seat is fixedly mounted on the outer wall of the reciprocating seat (43), and the inner wall of the bearing seat is rotatably sleeved on the outer side of the upper end shaft wall of the transmission shaft (55) via a ball bearing.

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