Large refrigeration house refrigeration device and system

Abstract

The invention discloses a large refrigeration house refrigerating device, which relates to the technical field of refrigeration house refrigeration, and comprises a refrigerating unit, a support frame is fixed at the bottom of the refrigerating unit, a lifting bottom plate is fixed at the lower end of the support frame, first screw rods are fixed at four end corners of the upper end of the lifting bottom plate, and a horizontal cross beam is fixed at the center of the inner side of the lifting bottom plate; access doors are arranged on the two sides of the horizontal cross beam, bearing side frames are arranged on the two sides of the refrigerating unit, two anti-skid bottom plates are fixed to the bottom end between the two bearing side frames, and a lifting assembly is arranged at the position, located at the upper ends of the two bearing side frames, of the upper end of the lifting bottom plate; lifting assisting assemblies are arranged at the upper ends of the two anti-skid bottom plates and located at the lower end of the lifting bottom plate. According to the large-scale refrigeration house refrigerating device, the whole refrigerating unit can be stably lifted to a safe height position through the lifting assembly and the lifting assisting assembly, so that an open operation space is created below the refrigerating unit, and barrier-free maintenance operation can be carried out below the refrigerating unit.

Description

Technical Field

[0001] This invention relates to the field of cold storage refrigeration, and in particular to a large-scale cold storage refrigeration device and system. Background Technology

[0002] Large cold storage facilities serve as core infrastructure in fields such as food cold chain, biopharmaceutical, and chemical warehousing, and the stable and efficient operation of their refrigeration systems is crucial. Refrigeration units, which include core components such as compressors, oil separators, and condensers, are the heart of the entire refrigeration system. Their routine maintenance, troubleshooting, and component replacement are essential for ensuring the long-term safe operation of cold storage facilities.

[0003] In existing large-scale cold storage engineering practices, refrigeration units are generally installed on fixed bases. That is, the heavy refrigeration unit is fixedly installed on a concrete foundation or steel platform, with only extremely limited space between the bottom of the unit and the foundation, or even completely flush. This installation method results in a severe lack of maintenance space, making maintenance work extremely inconvenient, and making routine inspections and preventive maintenance difficult to implement, as well as installation and commissioning challenging. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a large-scale cold storage refrigeration device, comprising a refrigeration unit, a heat exhaust port on one side of the refrigeration unit, a circulating heat pipe installed at the upper end of the refrigeration unit, a heat conduction pipe connected to the inner side of the heat exhaust port, a three-way valve connected between the end of the heat conduction pipe away from the heat exhaust port and the circulating heat pipe, condensate seats fixed at both ends of the refrigeration unit, a support frame fixed at the bottom of the refrigeration unit, a lifting base plate fixed at the lower end of the support frame, first screws fixed at the four corners of the upper end of the lifting base plate, a horizontal beam fixed at the center of the inner side of the lifting base plate, inspection doors provided on both sides of the horizontal beam, the inspection doors being rotatably connected to the lifting base plate, load-bearing side frames provided on both sides of the refrigeration unit, two anti-slip base plates fixed at the bottom between the two load-bearing side frames, a lifting assembly provided at the upper end of the lifting base plate and above the two load-bearing side frames, and a lifting aid assembly provided at the upper end of the two anti-slip base plates and below the lifting base plate.

[0005] Preferably, the lifting assembly includes internally threaded cylinders, with two internally threaded cylinders rotatably connected to the upper ends of the two bearing side frames. The four first screws are located inside the four internally threaded cylinders and are threadedly connected to them. A first bevel gear is fixed to the outer side of each internally threaded cylinder and located at the upper end of the bearing side frame. A first dual-axis motor is installed at the center of the upper ends of the two bearing side frames. A second bevel gear is fixed to each of the two output ends of the first dual-axis motor. The four second bevel gears are respectively meshed with the four first bevel gears.

[0006] Preferably, each of the inner ends of the bearing side frame is fixed with a guide column, and the lifting base plate is slidably connected to the four guide columns.

[0007] Preferably, a first bearing is fixed at each of the four corners of the bottom of the lifting base plate.

[0008] Preferably, each of the lifting components includes a protective seat, and a protective seat is fixed at the center of the upper end of each of the anti-slip base plates. A guide rod is fixed inside the protective seat, and a pusher slide is symmetrically slidably connected to the outer side of the guide rod. A second shaft seat is fixed at the upper end of each of the four pusher slides. Four connecting rods are rotatably connected between the four second shaft seats and the four first shaft seats. A second dual-axis motor is installed inside each of the protective seats. A second screw is fixed at each of the two output ends of the second dual-axis motor. The four pusher slides are respectively located outside the four second screws and are threadedly connected to the second screws.

[0009] Preferably, both of the protective seats are rotatably connected to protective doors on their outer sides.

[0010] Preferably, each of the access doors has a handle fixed at the center of the side near the horizontal beam, and a limit assembly is provided between the two handles and at the lower end of the horizontal beam.

[0011] Preferably, the limiting component includes a hollow mounting base. A hollow mounting base is fixed at the center of the lower end of the horizontal beam. Guide rails are symmetrically fixed on the inner side of the hollow mounting base. Limiting plates are slidably connected to the outer sides of the two guide rails. The limiting plates are slidably connected to the hollow mounting base. The two limiting plates are slidably connected to two handles respectively. A rack is fixed at one end of the two limiting plates that is close to each other and located inside the hollow mounting base. A rotating shaft is rotatably connected to the center inside the hollow mounting base. A spur gear is fixed at the upper end of the rotating shaft. The outer side of the spur gear meshes with the two racks.

[0012] Preferably, two positioning holes are provided at the bottom end of the hollow mounting base and on the outside of the rotating shaft. An eccentric plate is fixed at the lower end of the rotating shaft and at the lower end of the hollow mounting base. A pull rod is slidably connected inside the eccentric plate and on the outside of the rotating shaft. The upper end of the pull rod is slidably connected to the positioning holes, and a spring is fixed between the lower end of the pull rod and the eccentric plate.

[0013] In summary, the present invention provides a large-scale cold storage refrigeration device with the following beneficial effects: 1. This large-scale cold storage refrigeration unit, through the coordinated design of lifting and auxiliary lifting components, can smoothly elevate the entire refrigeration unit to a safe height, facilitating the rapid and even distribution of cold air throughout the cold storage. Simultaneously, it creates a spacious working area beneath the refrigeration unit, allowing for unobstructed maintenance work after opening the two access doors. Maintenance personnel can easily conduct direct visual inspections, rapid repairs, or component replacements of all critical components at the lower part of the refrigeration unit without needing to crouch or lie down. This completely solves the problems of blind spots and operational dead angles inherent in traditional fixed installations, making daily inspections, preventative maintenance, and general troubleshooting unprecedentedly convenient and efficient, while significantly reducing labor intensity and operational risks.

[0014] 2. This large-scale cold storage refrigeration unit, through the structural design of the limiting components, can limit and fix the two maintenance doors when they are closed, thereby preventing unauthorized personnel from accidentally opening the maintenance doors and interfering with the normal operation of the refrigeration unit. At the same time, the heat generated during the operation of the refrigeration unit is discharged into the heat conduction pipe through the heat exhaust port, and then input into the circulating heat pipe through the three-way valve. The through-type design of the circulating heat pipe allows the heat to re-contact with the outer surface of the refrigeration unit, thereby effectively suppressing the frost problem of the refrigeration unit itself. It achieves waste heat recovery without the need for electric defrosting, effectively reducing energy consumption. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer structure of the refrigeration unit of the present invention; Figure 3 This is a schematic diagram of the upper structure of the lifting base plate of the present invention; Figure 4 This is a schematic diagram of the lifting component structure of the present invention; Figure 5 This is a schematic diagram of the upper structure of the anti-slip base plate of the present invention; Figure 6 This is a schematic diagram of the lifting component structure of the present invention; Figure 7 This is a schematic diagram of the lower end structure of the lifting base plate of the present invention; Figure 8 This is a schematic diagram of the limiting component structure of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Refrigeration unit; 2. Support frame; 3. Heat exhaust port; 4. Heat pipe; 5. Circulating heat pipe; 6. Three-way valve; 7. Lifting base plate; 8. First screw; 9. Horizontal beam; 10. Inspection door; 11. Bearing side frame; 12. Guide column; 13. Internal threaded cylinder; 14. First bevel gear; 15. First dual-shaft motor; 16. Second bevel gear; 17. Anti-slip base plate; 18. First bearing seat; 19. Protective equipment. 20. Seat; 21. Guide rod; 22. Push slide; 23. Second shaft seat; 24. Connecting rod; 25. Second dual-axis motor; 26. Second screw; 27. Protective door; 28. Handle; 29. ​​Hollow mounting seat; 30. Guide rail; 31. Limiting plate; 32. Rack; 33. Rotating shaft; 34. Flat gear; 35. Eccentric plate; 36. Pull rod; 37. Spring; 38. Positioning hole; 39. Condensate seat. Detailed Implementation

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Please see Figure 1-8 A large-scale cold storage refrigeration device includes a refrigeration unit 1. A heat exhaust port 3 is provided on one side of the refrigeration unit 1. A circulating heat pipe 5 is installed at the upper end of the refrigeration unit 1. A heat conduction pipe 4 is connected to the inner side of the heat exhaust port 3. A three-way valve 6 is connected between the end of the heat conduction pipe 4 away from the heat exhaust port 3 and the circulating heat pipe 5. The heat conduction pipe 4, the circulating heat pipe 5 and the three-way valve 6 form a waste heat transport circuit, so that hot air can circulate and contact the outer surface of the refrigeration unit 1. This design uses the waste heat generated by the operation of the refrigeration unit 1 to achieve active heat preservation of the outer shell of the refrigeration unit 1, effectively raising its surface temperature to above the freezing point, thereby inhibiting the formation of frost from the source. At the same time, it recovers the waste heat that was originally discharged into the environment, avoiding the extra energy consumption brought by traditional electric defrosting. Condensate water seats 38 are fixed at both ends of the refrigeration unit 1. The two condensate water seats 38 are used to collect the condensate dripping during the defrosting period. A support frame 2 is fixed at the bottom of the refrigeration unit 1 to enhance the overall structure. In order to support the refrigeration unit 1 and the support frame 2, a lifting base plate 7 is fixed at the lower end of the support frame 2. In order to facilitate the lifting and lowering movement of the lifting base plate 7, a first screw 8 is fixed at each of the four corners of the upper end of the lifting base plate 7. Both sides of the refrigeration unit 1 are provided with load-bearing side frames 11. Two anti-slip base plates 17 are fixed at the bottom between the two load-bearing side frames 11. A lifting component is provided at the upper end of the lifting base plate 7 and at the upper end of the two load-bearing side frames 11. A lifting aid component is provided at the upper end of the two anti-slip base plates 17 and at the lower end of the lifting base plate 7. Specifically, the lifting assembly includes an internally threaded cylinder 13. Two internally threaded cylinders 13 are rotatably connected to the upper ends of the two bearing side frames 11. Four first screws 8 are located inside the four internally threaded cylinders 13 and are threadedly connected to the internally threaded cylinders 13. A first bevel gear 14 is fixed on the outer side of each internally threaded cylinder 13 and located at the upper end of the bearing side frame 11. A first dual-axis motor 15 is installed at the center of the upper end of the two bearing side frames 11. Two second bevel gears 16 are fixed at the two output ends of each first dual-axis motor 15. The four second bevel gears 16 are respectively meshed with the four first bevel gears 14. Each of the supporting side frames 11 has guide columns 12 fixed at both ends on its inner side. The lifting base plate 7 is slidably connected to the four guide columns 12. In order to further enhance the upward force of the lifting base plate 7 by assisting the lifting components, a first bearing seat 18 is fixed at each of the four corners of the bottom of the lifting base plate 7. Each lifting component includes a protective seat 19. A protective seat 19 is fixed at the center of the upper end of each anti-slip base plate 17. A guide rod 20 is fixed inside the protective seat 19. Pushing slides 21 are symmetrically slidably connected to the outside of the guide rod 20. The four pushing slides 21 Each of the four protective seats 19 has a second bearing seat 22 fixed at its upper end. Four connecting rods 23 are rotatably connected between the four second bearing seats 22 and the four first bearing seats 18. A second dual-axis motor 24 is installed on the inner side of each protective seat 19. A second screw 25 is fixed at each of the two output ends of the second dual-axis motor 24. Four push slides 21 are located on the outer side of the four second screws 25 and are threadedly connected to the second screws 25. In order to seal the protective seat 19 and protect the second dual-axis motor 24, a protective door 26 is rotatably connected to the outer side of each of the two protective seats 19. A horizontal beam 9 is fixed at the center of the inner side of the lifting base plate 7. Inspection doors 10 are provided on both sides of the horizontal beam 9. The inspection doors 10 are rotatably connected to the lifting base plate 7. In order to facilitate the grabbing of the inspection doors 10, a handle 27 is fixed at the center of the side of each inspection door 10 near the horizontal beam 9. When the two inspection doors 10 are open, it is convenient to carry out maintenance work on the refrigeration unit 1 below the refrigeration unit 1. When the two inspection doors 10 are closed, in order to limit and fix the inspection doors 10, a limit component is provided between the two handles 27 and at the lower end of the horizontal beam 9. Specifically, the limiting component includes a hollow mounting base 28. The hollow mounting base 28 is fixed at the center of the lower end of the horizontal beam 9. Guide rails 29 are symmetrically fixed on the inner side of the hollow mounting base 28. Limiting plates 30 are slidably connected to the outer sides of the two guide rails 29. The limiting plates 30 are slidably connected to the hollow mounting base 28. The two limiting plates 30 are slidably connected to the two handles 27 respectively. Racks 31 are fixed at the ends of the two limiting plates 30 that are close to each other and located inside the hollow mounting base 28. A rotating shaft 32 is rotatably connected to the center inside the hollow mounting base 28. A spur gear 33 is fixed at the upper end of the rotating shaft 32. The outer side of the spur gear 33 is meshed with the two racks 31. To prevent the spur gear 33 from rotating under non-human conditions, thereby affecting the limiting effect of the inspection door 10, two positioning holes 37 are provided at the bottom of the hollow mounting base 28 and outside the rotating shaft 32. An eccentric plate 34 is fixed at the lower end of the rotating shaft 32 and at the lower end of the hollow mounting base 28. A pull rod 35 is slidably connected inside the eccentric plate 34 and outside the rotating shaft 32. The upper end of the pull rod 35 is slidably connected to the positioning hole 37, and a spring 36 is fixed between the lower end of the pull rod 35 and the eccentric plate 34. In use, the first dual-axis motor 15 is started to drive the second bevel gear 16 to rotate. The meshing of the second bevel gear 16 with the first bevel gear 14 drives the internal threaded cylinder 13 to rotate. The threaded connection between the internal threaded cylinder 13 and the first screw 8 drives the lifting base plate 7 to move upward through the guide post 12. At the same time, the second dual-axis motor 24 is started to drive the second screw 25 to rotate. The threaded connection between the second screw 25 and the push slide 21, combined with the guidance of the guide rod 20, drives the push slide 21 to move away from the second dual-axis motor 24. Then, the connecting rod 23 lifts the lifting base plate 7, making the lifting force of the lifting base plate 7 more stable. After the refrigeration unit 1 is raised, when it is necessary to inspect and maintain the refrigeration unit 1, pull the lever 35 so that it slides out of the positioning hole 37, and then rotate the shaft 32. Then, the meshing of the spur gear 33 and the rack 31 drives the two limit plates 30 to move closer to each other and slide into the inner side of the hollow mounting base 28, so that the limit plates 30 slide out from the inside of the handle 27, making it easy to grab the handle 27 to open the maintenance door 10, and directly inspect and maintain the refrigeration unit 1 from below.

[0019] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of this invention. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system, etc., is not fully described. However, those skilled in the art who understand the principle of the above invention can clearly understand its power mechanism, power supply system and control system. The control method in the specific application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, the mechanical transmission components provided in this invention are all closed designs that can be opened for maintenance. According to the mechanical manual, as long as they are properly maintained, these mechanical transmission components can normally realize the transmission movement claimed above. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-scale cold storage refrigeration device, characterized in that: The system includes a refrigeration unit (1), with a heat outlet (3) on one side of the refrigeration unit (1). A circulating heat pipe (5) is installed at the upper end of the refrigeration unit (1). A heat conduction pipe (4) is connected to the inner side of the heat outlet (3). A three-way valve (6) is connected between the end of the heat conduction pipe (4) away from the heat outlet (3) and the circulating heat pipe (5). Condensate bases (38) are fixed at both ends of the refrigeration unit (1). A support frame (2) is fixed at the bottom of the refrigeration unit (1). A lifting base plate (7) is fixed at the lower end of the support frame (2). A first screw is fixed at each of the four corners of the upper end of the lifting base plate (7). A horizontal beam (9) is fixed at the center of the inner side of the lifting base plate (7) and a maintenance door (10) is provided on both sides of the horizontal beam (9). The maintenance door (10) is rotatably connected to the lifting base plate (7). A load-bearing side frame (11) is provided on both sides of the refrigeration unit (1). Two anti-slip base plates (17) are fixed at the bottom between the two load-bearing side frames (11). A lifting component is provided at the upper end of the lifting base plate (7) and at the upper end of the two load-bearing side frames (11). A lifting aid component is provided at the upper end of the two anti-slip base plates (17) and at the lower end of the lifting base plate (7).

2. The large-scale cold storage refrigeration device according to claim 1, characterized in that: The lifting assembly includes an internal threaded cylinder (13). Two internal threaded cylinders (13) are rotatably connected to the upper ends of the two bearing side frames (11). Four first screws (8) are located inside the four internal threaded cylinders (13) and are threadedly connected to the internal threaded cylinders (13). A first bevel gear (14) is fixed on the outer side of each internal threaded cylinder (13) and at the upper end of the bearing side frame (11). A first dual-axis motor (15) is installed at the center of the upper end of each of the two bearing side frames (11). A second bevel gear (16) is fixed at each of the two output ends of each first dual-axis motor (15). The four second bevel gears (16) are meshed with the four first bevel gears (14) respectively.

3. A large-scale cold storage refrigeration device according to claim 1, characterized in that: Each of the inner ends of the bearing side frame (11) is fixed with a guide column (12), and the lifting base plate (7) is slidably connected to the four guide columns (12).

4. A large-scale cold storage refrigeration device according to claim 1, characterized in that: The lifting base plate (7) has four corners at the bottom of each of the four corners fixed with a first bearing (18).

5. A large-scale cold storage refrigeration device according to claim 4, characterized in that: Each of the lifting components includes a protective seat (19). A protective seat (19) is fixed at the center of the upper end of each of the anti-slip base plates (17). A guide rod (20) is fixed inside the protective seat (19). A pusher slide (21) is symmetrically slidably connected to the outside of the guide rod (20). A second shaft seat (22) is fixed at the upper end of each of the four pusher slides (21). Four connecting rods (23) are rotatably connected between the four second shaft seats (22) and the four first shaft seats (18). A second dual-axis motor (24) is installed on the inner side of each of the protective seats (19). A second screw (25) is fixed at each of the two output ends of the second dual-axis motor (24). The four pusher slides (21) are located on the outside of the four second screws (25) and are threadedly connected to the second screws (25).

6. A large-scale cold storage refrigeration device according to claim 5, characterized in that: Both of the protective seats (19) are rotatably connected to protective doors (26) on their outer sides.

7. A large-scale cold storage refrigeration device according to claim 1, characterized in that: Each of the inspection doors (10) has a handle (27) fixed at the center of the side near the horizontal beam (9), and a limit assembly is provided between the two handles (27) and at the lower end of the horizontal beam (9).

8. A large-scale cold storage refrigeration device according to claim 7, characterized in that: The limiting component includes a hollow mounting base (28). The hollow mounting base (28) is fixed at the center of the lower end of the horizontal beam (9). Guide rails (29) are symmetrically fixed on the inner side of the hollow mounting base (28). Limiting plates (30) are slidably connected to the outer sides of the two guide rails (29). The limiting plates (30) are slidably connected to the hollow mounting base (28). The two limiting plates (30) are slidably connected to the two handles (27) respectively. A rack (31) is fixed at the end of the two limiting plates (30) that are close to each other and located inside the hollow mounting base (28). A rotating shaft (32) is rotatably connected at the center inside the hollow mounting base (28). A spur gear (33) is fixed at the upper end of the rotating shaft (32). The outer side of the spur gear (33) is meshed with the two racks (31).

9. A large-scale cold storage refrigeration device according to claim 8, characterized in that: Two positioning holes (37) are provided at the bottom end of the hollow mounting base (28) and outside the rotating shaft (32). An eccentric plate (34) is fixed at the lower end of the rotating shaft (32) and at the lower end of the hollow mounting base (28). A pull rod (35) is slidably connected inside the eccentric plate (34) and outside the rotating shaft (32). The upper end of the pull rod (35) is slidably connected to the positioning hole (37). A spring (36) is fixed between the lower end of the pull rod (35) and the eccentric plate (34).

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