CN116878197A - High-efficient large capacity liquid nitrogen refrigerator - Google Patents
High-efficient large capacity liquid nitrogen refrigerator Download PDFInfo
- Publication number
- CN116878197A CN116878197A CN202311139480.5A CN202311139480A CN116878197A CN 116878197 A CN116878197 A CN 116878197A CN 202311139480 A CN202311139480 A CN 202311139480A CN 116878197 A CN116878197 A CN 116878197A
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- Prior art keywords
- gear
- liquid nitrogen
- rotating
- refrigerating
- fixedly arranged
- Prior art date
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 246
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 121
- 239000007788 liquid Substances 0.000 title claims abstract description 98
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 33
- 244000309464 bull Species 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 238000007710 freezing Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 230000003204 osmotic effect Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a high-efficiency high-capacity liquid nitrogen refrigerator, which belongs to the technical field of liquid nitrogen refrigeration and comprises a conveying device arranged on the ground; the conveying device is provided with a refrigerating device, the refrigerating device is used for refrigerating the goods, the conveying device is used for conveying the goods into the refrigerating device for refrigerating, the refrigerating device is provided with a nitrogen making device, and the nitrogen making device is used for making nitrogen and forming liquid nitrogen. The conveying device provided by the invention can automatically push the goods into the refrigerating device, quickly freeze the goods through the refrigerating device and finally send out of the device so as to be convenient for a delivery person to package; the nitrogen making device utilizes air and a permeable membrane to separate nitrogen in the air, forms liquid nitrogen through a compressor and stores the liquid nitrogen into a liquid nitrogen tank, and utilizes the stored liquid nitrogen for a refrigerating device, so that the liquid nitrogen tank can effectively improve the storage capacity of the liquid nitrogen.
Description
Technical Field
The invention relates to the technical field of liquid nitrogen refrigeration, in particular to a high-efficiency high-capacity liquid nitrogen refrigerator.
Background
The storage and transportation of foods and other special goods at normal temperature can cause the deterioration and decay of the goods, which not only wastes resources but also affects the allocation of the resources. The liquid nitrogen can quickly freeze food, and the original nutrition and taste of the food are reserved to the greatest extent, so that the liquid nitrogen freezing plays an important role in food storage and transportation. However, the initial liquid nitrogen machine needs to manually put in and take out liquid nitrogen, which not only affects the efficiency, but also increases the risk of frostbite of staff. The Chinese patent with publication number CN111981748B discloses a liquid nitrogen instant freezer, which is characterized in that an atomization unit ejects gasified liquid nitrogen after an article is placed into an instant freezing cavity, so that the temperature of the instant freezing cavity is reduced, and the article is cooled. However, the prior art is not improved on the process route, the process of gasifying the liquid nitrogen wastes energy, the liquid nitrogen cannot be manufactured, and quick freezing of goods cannot be performed.
Disclosure of Invention
Aiming at the technical problems, the invention adopts the following technical scheme: a high-efficiency high-capacity liquid nitrogen refrigerator comprises a conveying device arranged on the ground; the conveying device comprises a discharging frame, the discharging frame is placed on the ground, a refrigerating device is arranged on the conveying device, the refrigerating device comprises a refrigerating box, the refrigerating box is placed on the ground, the refrigerating device is used for refrigerating cargoes, the conveying device is used for conveying the cargoes to enter the refrigerating device for refrigerating, a nitrogen making device is arranged on the refrigerating device, the nitrogen making device comprises a rotating motor, the rotating motor is fixedly arranged on the refrigerating box, and the nitrogen making device is used for making nitrogen and forming liquid nitrogen.
The nitrogen is produced by the nitrogen producing device through air and liquid nitrogen is formed, the goods enter the refrigerating device under the conveying of the conveying device, and the liquid nitrogen formed by the nitrogen producing device freezes the goods through the refrigerating device.
Further, conveyor include fixed mounting motor support on the blowing frame, fixed mounting has the motor on the motor support, fixed mounting has the rolling disc on the motor shaft of motor, rotationally installs the rotation slider on the rolling disc, fixed mounting has the top to rotate the ear on the motor support, sliding mounting has long bull stick in the rotation slider, long bull stick rotates the installation with the top to rotate the ear, rotates on the long bull stick and installs the bottom balladeur train, fixed mounting has the top material piece on the bottom balladeur train, fixed mounting has bottom slide rail on the blowing frame, top material piece and bottom slide rail slidable mounting are provided with the top rack on the bottom balladeur train, placed a plurality of materials in the blowing frame, the blowing frame is other to be provided with drive mechanism.
Further, the transmission mechanism comprises a middle support and an outer support which are placed on the ground, a left transmission wheel is rotatably installed on the middle support, a right transmission wheel is rotatably installed on the outer support, a transmission shaft is rotatably installed on the outer support, a transmission gear and a middle gear are fixedly installed on the transmission shaft, a transmission belt is wound outside the transmission gear, the right transmission wheel and the left transmission wheel, and a unidirectional mechanism is arranged below the middle gear.
Further, the unidirectional mechanism comprises an external transmission frame placed on the ground, an outer gear is rotatably installed on the external transmission frame, an inner rotating wheel is fixedly installed on the outer gear, rotating teeth are arranged on the inner rotating wheel, an outer gear is rotatably installed outside the inner rotating wheel and meshed with the intermediate gear, rotating ratchets are rotatably installed on the outer gear, a torsion spring is arranged between the outer gear and the rotating ratchets, and a top rack is meshed with the outer gear.
The motor rotates to drive the rolling disc to rotate, thereby drive the rotation slider to rotate, thereby drive long bull stick and slide in rotating the slider, long bull stick rotates round top rotation ear, drive bottom balladeur train and liftoff piece and slide forward on bottom slide rail, the liftoff piece is with the material in the blowing frame being released to the drive belt, bottom balladeur train forward motion simultaneously, drive outside gear and inner gear counter-clockwise rotation through the top rack, the inner gear counter-clockwise rotation drives the change tooth and rotates the ratchet contact, can let the torsional spring twist reverse, the lug of rotating the ratchet round the outer gear rotates, at this moment, outside gear counter-clockwise rotation can not drive the external gear rotation, continue to rotate when the rolling disc continues to rotate, drive liftoff piece and bottom balladeur train back, the bottom balladeur train drives top rack back and slides, thereby drive outside gear clockwise rotation, outside gear clockwise rotation drives the inner gear clockwise rotation, drive change tooth and rotate the ratchet contact, this moment can drive clockwise rotation, the outer gear can't be rotated by the torsion, can only be rotated by the change tooth, the rotation can be rotated forward by the drive belt, the material that falls before on the drive belt, the jack-down motor is kept off in the place, and the material is continuously and the material is released to the bottom carrier through the top carrier, and the material is continuously and continuously falls down to the material in the refrigerating device, the refrigerating device is continuously, the material is cooled down and the material is sent down to the bottom of the conveying device.
Further, the refrigerating device comprises a liquid nitrogen tank fixedly installed at the top of the refrigerating box, a conveying pump is fixedly installed on the liquid nitrogen tank, a liquid conveying pipe is fixedly installed on the conveying pump, four liquid inlet heads are fixedly installed on the liquid conveying pipe, a flow pipe is fixedly installed on each liquid inlet head, an air outlet head is fixedly installed on each flow pipe, an air outlet pipe is fixedly installed on each air outlet head, an exhaust port is fixedly installed on each air outlet pipe, and curtains are arranged on two sides of the refrigerating box.
The liquid nitrogen produced by the nitrogen producing device enters a liquid nitrogen tank, a large amount of liquid nitrogen can be stored in the liquid nitrogen tank, the nitrogen producing device can work independently from the refrigerating device, the liquid nitrogen in the liquid nitrogen tank is introduced into the flow pipe through the liquid feeding pipe and the liquid inlet head by the conveying pump, the flow pipe freezes materials on the transmission belt, the liquid nitrogen in the frozen flow pipe is changed into gas, and the gas enters the gas outlet pipe through the gas outlet head and is discharged through the discharge port.
Further, nitrogen making device include fixed mounting at the epaxial carousel of rotation motor, rotate on the carousel and install the bull stick, rotate on the bull stick and install sliding push rod, fixed mounting has the pushing tank on the freezer, sliding push rod and pushing tank slidable mounting, fixed mounting has the push pedal on the sliding push rod, promotes incasement fixed mounting and has the osmotic membrane, fixed mounting has the air inlet tube on the pushing tank, fixed mounting has the air pump on the pushing tank, fixed mounting has communicating pipe on the air pump, fixed mounting has the compressor on the freezer, compressor and communicating pipe fixed mounting, compressor and liquid nitrogen container fixed mounting are provided with ventilation mechanism on the pushing tank.
Further, the ventilation mechanism comprises a connecting rack fixedly arranged on the sliding push rod, the connecting rack is slidably arranged with the pushing box, a gear frame is fixedly arranged on the pushing box, a lower gear and an upper gear are rotatably arranged on the gear frame, the lower gear is meshed with the upper gear, the lower gear is meshed with the connecting rack, a top frame is fixedly arranged on the air inlet cylinder, a toothed driving belt is wound outside the top frame and the gear frame, the upper gear is meshed with the toothed driving belt, an upper disc and a lower disc are slidably arranged in the air inlet cylinder, air holes are formed in the upper disc and the lower disc, an upper rack and a lower rack are fixedly arranged on the upper disc and the lower disc, and the upper rack and the lower rack are meshed with the toothed driving belt.
Further, four air holes are formed in the upper disc and the lower disc, and the air holes are located around the center hole in the top of the air inlet cylinder.
The rotating motor rotates to drive the turntable to rotate, thereby drive the bull stick to rotate, thereby drive the slip push rod and slide in promoting the case, the slip push rod slides and drives the push pedal and promote the air, the air passes through the osmotic membrane, the osmotic membrane utilizes the principle that nitrogen gas and other gaseous permeability in the air under high pressure are different, nitrogen gas can pass through the osmotic membrane, other gaseous can not pass through, the air pump lets in the compressor with nitrogen gas through communicating pipe, nitrogen gas forms liquid nitrogen in the compressor and lets in the liquid nitrogen jar, when the slip push rod slides in promoting the incasement, the meeting drives simultaneously and connects the rack to slide, thereby drive gear frame and lower gear rotation, thereby drive tooth drive belt rotation, thereby drive upper and lower rack and upper and lower dish slide, when the push pedal promotes gas, the upper and lower dish goes upward, external gas stops to get into the inflator from the gas pocket, when push pedal and slip push pedal backward, the upper and lower dish descends, external gas gets into the inflator through the gas pocket, and in the inflator gas mixes with external gas through the gas pocket.
Compared with the prior art, the invention has the beneficial effects that: (1) The conveying device provided by the invention can automatically push the goods into the refrigerating device, quickly freeze the goods through the refrigerating device and finally send out of the device so as to be convenient for a delivery person to package; (2) The motor provided by the invention can drive the driving belt to rotate later when the goods are pushed onto the driving belt, and the two actions are performed in turn, so that the goods can be pushed into the refrigerating device uniformly and orderly for refrigeration without interruption; (3) The nitrogen making device provided by the invention utilizes the air and the permeable membrane to separate nitrogen in the air, forms liquid nitrogen through the compressor and stores the liquid nitrogen into the liquid nitrogen tank, and utilizes the stored liquid nitrogen for the refrigerating device, so that the liquid nitrogen tank can effectively improve the storage capacity of the liquid nitrogen.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of a conveying apparatus according to the present invention.
FIG. 3 is a schematic view of the internal structure of the material rack of the conveying device.
Fig. 4 is a schematic diagram of the structure of the transmission mechanism of the present invention.
Fig. 5 is a schematic diagram of a unidirectional mechanism according to the present invention.
FIG. 6 is a schematic diagram of a unidirectional mechanism according to the present invention.
Fig. 7 is a schematic view of a refrigerating apparatus according to the present invention.
Fig. 8 is a schematic diagram of a refrigerating apparatus according to the second embodiment of the present invention.
FIG. 9 is a schematic diagram of a nitrogen generator according to the present invention.
FIG. 10 is a schematic diagram of a nitrogen generator according to the present invention.
Reference numerals: 101-a discharging frame; 102-a motor bracket; 103-material; 104-a motor; 105-top turning ear; 106-rotating a disc; 107-rotating the slider; 108-a long rotating rod; 109-roof block; 110-bottom rail; 111-bottom carriage; 112-top rack; 113-an intermediate support; 114-a left driving wheel; 115-a drive belt; 116-an outer stent; 117-right drive wheel; 118-an external transmission rack; 119-outer gear; 120-inner rotating wheel; 1201-turning teeth; 121-an external gear; 122-intermediate gear; 123-a transmission gear; 124-drive shaft; 125-rotating ratchet teeth; 126-torsion spring; 201-a freezer; 202-a liquid nitrogen tank; 203-a transfer pump; 204, a liquid conveying pipe; 205-liquid inlet head; 206-a flow tube; 207-outlet head; 208-an air outlet pipe; 209-a discharge port; 210-curtain; 301-rotating a motor; 302-a turntable; 303-rotating rod; 304-sliding push rod; 305-connecting racks; 306-pushing the box; 307-gear carrier; 308-lower gear; 309-upper gear; 310-tooth drive belt; 311-compressors; 312-roof rack; 313-upper and lower racks; 314-an air inlet cylinder; 315-an air pump; 316-communicating pipe; 317-upper and lower trays; 3171-pores; 318-push plate; 319-permeable membrane.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
Examples: referring to fig. 1-10, a high efficiency high capacity liquid nitrogen refrigerator includes a conveyor disposed on the ground; the conveying device comprises a discharging frame 101, the discharging frame 101 is placed on the ground, the conveying device is provided with a refrigerating device, the refrigerating device comprises a refrigerating box 201, the refrigerating box 201 is placed on the ground, the refrigerating device is used for refrigerating goods, the conveying device is used for conveying the goods into the refrigerating device to be refrigerated, the refrigerating device is provided with a nitrogen making device, the nitrogen making device comprises a rotating motor 301, the rotating motor 301 is fixedly arranged on the refrigerating box 201, and the nitrogen making device is used for making nitrogen and forming liquid nitrogen.
The nitrogen is produced by the nitrogen producing device through air and liquid nitrogen is formed, the goods enter the refrigerating device under the conveying of the conveying device, and the liquid nitrogen formed by the nitrogen producing device freezes the goods through the refrigerating device.
As shown in fig. 2-6, the conveying device comprises a motor bracket 102 fixedly installed on a discharging frame 101, a motor 104 is fixedly installed on the motor bracket 102, a rotating disc 106 is fixedly installed on a motor shaft of the motor 104, a rotating sliding block 107 is rotatably installed on the rotating disc 106, a top rotating lug 105 is fixedly installed on the motor bracket 102, a long rotating rod 108 is slidably installed in the rotating sliding block 107, the long rotating rod 108 and the top rotating lug 105 are rotatably installed, a bottom sliding frame 111 is rotatably installed on the long rotating rod 108, a top material block 109 is fixedly installed on the bottom sliding frame 111, a bottom sliding rail 110 is fixedly installed on the discharging frame 101, the top material block 109 and the bottom sliding rail 110 are slidably installed, a top rack 112 is arranged on the bottom sliding frame 111, a plurality of materials 103 are placed in the discharging frame 101, and a transmission mechanism is arranged beside the discharging frame 101.
As shown in fig. 2-4, the transmission mechanism comprises a middle support 113 and an outer support 116 which are placed on the ground, a left transmission wheel 114 is rotatably installed on the middle support 113, a right transmission wheel 117 is rotatably installed on the outer support 116, a transmission shaft 124 is rotatably installed on the outer support 116, a transmission gear 123 and a middle gear 122 are fixedly installed on the transmission shaft 124, a transmission belt 115 is wound outside the transmission gear 123, the right transmission wheel 117 and the left transmission wheel 114, and a unidirectional mechanism is arranged below the middle gear 122.
As shown in fig. 4 to 6, the unidirectional mechanism includes an outer transmission frame 118 placed on the ground, an outer gear 119 is rotatably mounted on the outer transmission frame 118, an inner rotating wheel 120 is fixedly mounted on the outer gear 119, rotating teeth 1201 are provided on the inner rotating wheel 120, an outer gear 121 is rotatably mounted on the outer rotating wheel 120, the outer gear 121 is meshed with an intermediate gear 122, a rotating ratchet 125 is rotatably mounted on the outer gear 121, a torsion spring 126 is provided between the outer gear 121 and the rotating ratchet 125, and the top rack 112 is meshed with the outer gear 119.
The rotation of the motor 104 drives the rotating disc 106 to rotate, thereby driving the rotating slide block 107 to rotate, and driving the long rotating rod 108 to slide in the rotating slide block 107, the long rotating rod 108 rotates around the top rotating lug 105, driving the bottom sliding frame 111 and the ejection block 109 to slide forwards on the bottom sliding rail 110, the ejection block 109 pushes the material 103 in the discharging frame 101 onto the driving belt 115, simultaneously the bottom sliding frame 111 moves forwards, the top rack 112 drives the outer side gear 119 and the inner rotating wheel 120 to rotate anticlockwise, the inner rotating wheel 120 rotates anticlockwise to drive the rotating teeth 1201 to contact with the rotating ratchet 125, the torsion spring 126 is twisted, the rotating ratchet 125 rotates around the convex column of the outer gear 121, at this time, the outer side gear 119 rotates anticlockwise to not drive the outer gear 121 to rotate, the rotating disc 106 continues to rotate, the ejection block 109 and the bottom sliding frame 111 slide backwards, the bottom sliding frame 111 drives the top rack 112 to slide backwards, thereby driving the outer gear 119 to rotate clockwise, the outer gear 119 rotates clockwise to drive the inner rotating wheel 120 to rotate clockwise to drive the rotating teeth 1201 to contact with the rotating ratchet teeth 125, the outer gear 121 rotates clockwise at the moment, the torsion spring 126 cannot be twisted, only the rotating ratchet teeth 125 are pushed by the rotating teeth 1201, the outer gear 121 rotates clockwise to drive the driving belt 115 to rotate clockwise, the material 103 falling onto the driving belt 115 is conveyed forwards, the material pushing block 109 slides backwards and leaves the open material rack 101, namely leaves the lower part of the next material 103, the next material 103 falls onto the bottom surface of the material pushing rack 101 at the moment, waiting for the next pushing out, continuously pushing the material 103 onto the driving belt 115 through the motor 104, continuously conveying the material 103 forwards by the driving belt 115, and continuously conveying the material 103 into the freezing box 201 for freezing, and eventually leaves the device.
As shown in fig. 7 and 8, the refrigerating device comprises a liquid nitrogen tank 202 fixedly installed at the top of a refrigerating box 201, a conveying pump 203 is fixedly installed on the liquid nitrogen tank 202, a liquid feeding pipe 204 is fixedly installed on the conveying pump 203, four liquid feeding heads 205 are fixedly installed on the liquid feeding pipe 204, a flow pipe 206 is fixedly installed on each liquid feeding head 205, an air outlet head 207 is fixedly installed on each flow pipe 206, an air outlet pipe 208 is fixedly installed on each air outlet head 207, an exhaust port 209 is fixedly installed on each air outlet pipe 208, and curtains 210 are arranged on two sides of the refrigerating box 201.
The liquid nitrogen manufactured by the nitrogen manufacturing device enters the liquid nitrogen tank 202, a large amount of liquid nitrogen can be stored in the liquid nitrogen tank 202, the nitrogen manufacturing device can work independently from the refrigerating device, the liquid nitrogen in the liquid nitrogen tank 202 is introduced into the flow tube 206 through the liquid feeding tube 204 and the liquid feeding head 205 by the conveying pump 203, the material 103 on the driving belt 115 is refrigerated by the flow tube 206, the liquid nitrogen in the refrigerated flow tube 206 is changed into gas, the gas enters the gas outlet tube 208 through the gas outlet head 207, and the gas is discharged through the discharge port 209.
As shown in fig. 9 and 10, the nitrogen making device comprises a turntable 302 fixedly installed on a motor shaft of a rotating motor 301, a rotating rod 303 is rotatably installed on the turntable 302, a sliding push rod 304 is rotatably installed on the rotating rod 303, a pushing box 306 is fixedly installed on a freezer 201, the sliding push rod 304 and the pushing box 306 are slidably installed, a push plate 318 is fixedly installed on the sliding push rod 304, a permeable membrane 319 is fixedly installed in the pushing box 306, an air inlet cylinder 314 is fixedly installed on the pushing box 306, an air pump 315 is fixedly installed on the pushing box 306, a communicating pipe 316 is fixedly installed on the air pump 315, a compressor 311 is fixedly installed on the freezer 201, the compressor 311 is fixedly installed with the communicating pipe 316, the compressor 311 is fixedly installed with a liquid nitrogen tank 202, and a ventilation mechanism is arranged on the pushing box 306.
As shown in fig. 9 and 10, the ventilation mechanism comprises a connecting rack 305 fixedly mounted on a sliding push rod 304, the connecting rack 305 is slidably mounted with a pushing box 306, a gear frame 307 is fixedly mounted on the pushing box 306, a lower gear 308 and an upper gear 309 are rotatably mounted on the gear frame 307, the lower gear 308 is meshed with the upper gear 309, the lower gear 308 is meshed with the connecting rack 305, a top frame 312 is fixedly mounted on an air inlet cylinder 314, a toothed belt 310 is wound outside the top frame 312 and the gear frame 307, the upper gear 309 is meshed with the toothed belt 310, an upper disc 317 and a lower disc 317 are slidably mounted in the air inlet cylinder 314, air holes 3171 are formed in the upper disc 317, an upper rack 313 and a lower rack 313 are fixedly mounted on the upper disc 317, and the lower rack 313 is meshed with the toothed belt 310.
As shown in fig. 10, four air holes 3171 are provided in the upper and lower plates 317, and the air holes 3171 are located around the top center hole of the air inlet cylinder 314.
The rotating motor 301 rotates to drive the turntable 302 to rotate, thereby driving the rotating rod 303 to rotate, thereby driving the sliding push rod 304 to slide in the pushing box 306, the sliding push rod 304 slides to drive the push plate 318 to push air, the air passes through the permeable membrane 319, the permeable membrane 319 utilizes the principle that nitrogen in the air and other gases have different permeability under high pressure, the nitrogen can pass through the permeable membrane 319, other gases can not pass through, the air pump 315 leads the nitrogen into the compressor 311 through the communicating pipe 316, the nitrogen is formed in the compressor 311 to be led into the liquid nitrogen tank 202, when the sliding push rod 304 slides in the pushing box 306, the connecting rack 305 is simultaneously driven to slide, thereby driving the gear frame 307 and the lower gear 308 to rotate, thereby driving the gear drive belt 310 to rotate, thereby driving the upper and lower racks 313 and the upper and lower plates 317 to slide up and down, when the push plate 318 pushes the gases, the upper and lower plates 317 move up, external gases stop entering the air inlet 314 from the air hole 3171, when the push plate 318 and the sliding push rod 304 back down, the external gases enter the air inlet 314 through the air hole 3171, and the air inlet 314 is mixed with the external gases through the air hole 3171.
The invention discloses a working principle of a high-efficiency high-capacity liquid nitrogen refrigerator, which comprises the following steps: the material 103 is placed in the discharging frame 101, the motor 104 rotates to drive the rotating disc 106 to rotate, thereby driving the rotating slide block 107 to rotate, thereby driving the long rotating rod 108 to slide in the rotating slide block 107, the long rotating rod 108 rotates around the top rotating lug 105, driving the bottom sliding frame 111 and the material ejecting block 109 to slide forwards on the bottom sliding rail 110, the material 103 in the discharging frame 101 is pushed onto the driving belt 115 by the material ejecting block 109, the bottom sliding frame 111 moves forwards, the outer side gear 119 and the inner rotating wheel 120 are driven to rotate anticlockwise through the top rack 112, the inner rotating wheel 120 rotates anticlockwise, the rotating teeth 1201 are driven to contact with the rotating ratchet teeth 125, the torsion spring 126 is twisted, the rotating ratchet teeth 125 rotate around the convex column of the outer gear 121, at the moment, the outer side gear 119 rotates anticlockwise without driving the outer gear 121 to rotate, the material ejecting block 109 and the bottom sliding frame 111 slide backwards when the rotating disc 106 continues to rotate, the bottom carriage 111 drives the top rack 112 to slide back, so as to drive the outer gear 119 to rotate clockwise, the outer gear 119 rotates clockwise to drive the inner rotating wheel 120 to rotate clockwise, the rotating teeth 1201 are driven to contact with the rotating ratchet teeth 125, the outer gear 121 is driven to rotate clockwise at the moment, the torsion spring 126 cannot be twisted, only the rotating ratchet teeth 125 are pushed by the rotating teeth 1201, the outer gear 121 rotates clockwise to drive the driving belt 115 to rotate clockwise, the material 103 falling onto the driving belt 115 is conveyed forward, the material ejecting block 109 slides back, leaving the open material rack 101, namely leaving the lower part of the next material 103, the next material 103 falls onto the bottom surface of the material ejecting rack 101 at the moment, waiting for the next pushing out, the material 103 is continuously pushed onto the driving belt 115 through the motor 104, the driving belt 115 continuously conveys the material 103 forward, the material 103 is conveyed into the freezer 201 for freezing, and eventually leaves the device.
The rotating motor 301 rotates to drive the turntable 302 to rotate, thereby driving the rotating rod 303 to rotate, thereby driving the sliding push rod 304 to slide in the pushing box 306, the sliding push rod 304 slides to drive the push plate 318 to push air, the air passes through the permeable membrane 319, the permeable membrane 319 utilizes the principle that nitrogen in the air and other gases have different permeability under high pressure, the nitrogen can pass through the permeable membrane 319, other gases can not pass through, the air pump 315 leads the nitrogen into the compressor 311 through the communicating pipe 316, the nitrogen is formed in the compressor 311 to be led into the liquid nitrogen tank 202, when the sliding push rod 304 slides in the pushing box 306, the connecting rack 305 is simultaneously driven to slide, thereby driving the gear frame 307 and the lower gear 308 to rotate, thereby driving the gear drive belt 310 to rotate, thereby driving the upper and lower racks 313 and the upper and lower plates 317 to slide up and down, when the push plate 318 pushes the gases, the upper and lower plates 317 move up, external gases stop entering the air inlet 314 from the air hole 3171, when the push plate 318 and the sliding push rod 304 back down, the external gases enter the air inlet 314 through the air hole 3171, and the air inlet 314 is mixed with the external gases through the air hole 3171. The liquid nitrogen manufactured by the nitrogen manufacturing device enters the liquid nitrogen tank 202, the liquid nitrogen in the liquid nitrogen tank 202 is introduced into the flow tube 206 through the liquid feeding tube 204 and the liquid feeding head 205 by the conveying pump 203, the flow tube 206 freezes the material 103 on the driving belt 115, the liquid nitrogen in the frozen flow tube 206 is changed into gas, and the gas enters the gas outlet tube 208 through the gas outlet head 207 and is discharged through the discharge port 209.
Claims (8)
1. A high-efficiency high-capacity liquid nitrogen refrigerator comprises a conveying device arranged on the ground; the method is characterized in that: the conveying device comprises a discharging frame (101), the discharging frame (101) is placed on the ground, a refrigerating device is arranged on the conveying device, the refrigerating device comprises a refrigerating box (201), the refrigerating box (201) is placed on the ground, the refrigerating device is used for refrigerating cargoes, the conveying device is used for conveying the cargoes to enter the refrigerating device to be refrigerated, a nitrogen making device is arranged on the refrigerating device, the nitrogen making device comprises a rotating motor (301), the rotating motor (301) is fixedly arranged on the refrigerating box (201), and the nitrogen making device is used for making nitrogen and forming liquid nitrogen.
2. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 1 wherein: the conveying device comprises a motor support (102) fixedly arranged on a discharging frame (101), a motor (104) is fixedly arranged on the motor support (102), a rotating disc (106) is fixedly arranged on a motor shaft of the motor (104), a rotating sliding block (107) is rotatably arranged on the rotating disc (106), a top rotating lug (105) is fixedly arranged on the motor support (102), a long rotating rod (108) is slidably arranged in the rotating sliding block (107), the long rotating rod (108) and the top rotating lug (105) are rotatably arranged, a bottom sliding frame (111) is rotatably arranged on the long rotating rod (108), a jacking block (109) is fixedly arranged on the bottom sliding frame (111), a bottom sliding rail (110) is fixedly arranged on the discharging frame (101), a plurality of materials (103) are arranged in the discharging frame (101), and a transmission mechanism is arranged beside the discharging frame (101).
3. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 2 wherein: the transmission mechanism comprises a middle support (113) and an outer support (116) which are placed on the ground, a left transmission wheel (114) is rotatably installed on the middle support (113), a right transmission wheel (117) is rotatably installed on the outer support (116), a transmission shaft (124) is rotatably installed on the outer support (116), a transmission gear (123) and a middle gear (122) are fixedly installed on the transmission shaft (124), a transmission belt (115) is externally wound on the transmission gear (123), the right transmission wheel (117) and the left transmission wheel (114), and a unidirectional mechanism is arranged below the middle gear (122).
4. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 3 wherein: the unidirectional mechanism comprises an external transmission frame (118) placed on the ground, an outer gear (119) is rotatably installed on the external transmission frame (118), an inner rotating wheel (120) is fixedly installed on the outer gear (119), rotating teeth (1201) are arranged on the inner rotating wheel (120), an outer gear (121) is rotatably installed outside the inner rotating wheel (120), the outer gear (121) is meshed with an intermediate gear (122), a rotating ratchet (125) is rotatably installed on the outer gear (121), a torsion spring (126) is arranged between the outer gear (121) and the rotating ratchet (125), and a top rack (112) is meshed with the outer gear (119).
5. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 1 wherein: the refrigerating device comprises a liquid nitrogen tank (202) fixedly mounted at the top of a refrigerating box (201), a conveying pump (203) is fixedly mounted on the liquid nitrogen tank (202), liquid conveying pipes (204) are fixedly mounted on the conveying pump (203), four liquid inlet heads (205) are fixedly mounted on the liquid conveying pipes (204), flow pipes (206) are fixedly mounted on the liquid inlet heads (205) respectively, an air outlet head (207) is fixedly mounted on the flow pipes (206), an air outlet pipe (208) is fixedly mounted on the air outlet head (207), discharge ports (209) are fixedly mounted on the air outlet pipe (208), and curtains (210) are arranged on two sides of the refrigerating box (201).
6. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 5 wherein: the nitrogen making device comprises a rotary table (302) fixedly arranged on a motor shaft of a rotary motor (301), a rotary rod (303) is rotatably arranged on the rotary table (302), a sliding push rod (304) is rotatably arranged on the rotary rod (303), a pushing box (306) is fixedly arranged on a refrigerating box (201), the sliding push rod (304) and the pushing box (306) are slidably arranged, a push plate (318) is fixedly arranged on the sliding push rod (304), a permeable membrane (319) is fixedly arranged in the pushing box (306), an air inlet cylinder (314) is fixedly arranged on the pushing box (306), an air pump (315) is fixedly arranged on the pushing box (306), a communicating pipe (316) is fixedly arranged on the air pump (315), a compressor (311) is fixedly arranged on the refrigerating box (201), the compressor (311) and the communicating pipe (316) are fixedly arranged, the compressor (311) is fixedly arranged on the liquid nitrogen tank (202), and a ventilation mechanism is arranged on the pushing box (306).
7. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 6 wherein: the ventilation mechanism comprises a connecting rack (305) fixedly arranged on a sliding push rod (304), the connecting rack (305) is slidably arranged with a pushing box (306), a gear frame (307) is fixedly arranged on the pushing box (306), a lower gear (308) and an upper gear (309) are rotatably arranged on the gear frame (307), the lower gear (308) is meshed with the upper gear (309), the lower gear (308) is meshed with the connecting rack (305), a top frame (312) is fixedly arranged on an air inlet cylinder (314), a toothed driving belt (310) is wound outside the top frame (312) and the gear frame (307), the upper gear (309) is meshed with the toothed driving belt (310), an upper disc (317) and a lower disc (317) are slidably arranged on the air inlet cylinder (314), an air hole (3171) is formed in the upper disc (317), an upper rack (313) and a lower rack (313) are fixedly arranged on the upper disc and the lower disc (317), and the upper rack (313) is meshed with the toothed driving belt (310).
8. A high efficiency high capacity liquid nitrogen refrigerator as claimed in claim 7 wherein: four air holes (3171) are formed in the upper disc (317) and the lower disc (317), and the air holes (3171) are located around the central hole in the top of the air inlet cylinder (314).
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| CN202311139480.5A CN116878197B (en) | 2023-09-06 | 2023-09-06 | High-efficient large capacity liquid nitrogen refrigerator |
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| CN116878197B CN116878197B (en) | 2023-12-26 |
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| CN209991645U (en) * | 2019-04-12 | 2020-01-24 | 四川和蓉汇食品有限公司 | Tunnel type liquid nitrogen instant freezer facilitating feeding |
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| CN115978861A (en) * | 2022-12-22 | 2023-04-18 | 浙江工业大学 | Energy-recovery energy-saving liquid nitrogen spraying cryogenic rapid freezing method and device |
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| CN104720074A (en) * | 2015-04-21 | 2015-06-24 | 温中彬 | Liquid-nitrogen self-producing mobile frozen-storage production line |
| CN108870822A (en) * | 2018-07-31 | 2018-11-23 | 湖北交投莱克现代农业科技有限公司 | A kind of aquatic products liquid nitrogen quick freezer |
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| CN116878197B (en) | 2023-12-26 |
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