CN116294343A - Tunnel type liquid nitrogen instant freezer - Google Patents
Tunnel type liquid nitrogen instant freezer Download PDFInfo
- Publication number
- CN116294343A CN116294343A CN202310548811.4A CN202310548811A CN116294343A CN 116294343 A CN116294343 A CN 116294343A CN 202310548811 A CN202310548811 A CN 202310548811A CN 116294343 A CN116294343 A CN 116294343A
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- Prior art keywords
- conveying belt
- liquid nitrogen
- circulating
- pipe
- bottom plate
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 55
- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000007710 freezing Methods 0.000 abstract description 11
- 230000008014 freezing Effects 0.000 abstract description 11
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 241000238557 Decapoda Species 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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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 tunnel type liquid nitrogen instant freezer, which relates to the technical field of refrigeration equipment and comprises a bottom plate, wherein two symmetrically arranged conveying belt wheel supports are fixedly arranged on the bottom plate, two conveying belt wheels are rotatably arranged between the two conveying belt wheel supports, the two conveying belt wheels are in transmission connection through a conveying belt, a return port is further formed in the conveying belt wheel support, and a cooling chamber supporting plate is fixedly arranged on each of the two conveying belt wheel supports. The refrigeration assembly provided by the invention realizes the repeated cyclic utilization of the liquid nitrogen, reduces the consumption of the liquid nitrogen, thereby reducing the quick freezing cost, and utilizes the accelerating electric fan to blow the liquid nitrogen and the cold air to the refrigerated articles, thereby accelerating the refrigeration speed of the articles, further shortening the length of the conveyor belt and further reducing the whole occupied area of the device; the refrigerated goods can be shaken by the cooperation of the electromagnet, the sliding magnetic attraction plate and the plate spring, so that the cold air can be fully contacted with the surface of the goods.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a tunnel type liquid nitrogen instant freezer.
Background
The tunnel type instant freezer of liquid nitrogen is suitable for the production line of large-scale, continuous, small-personalized and large-area industrial production mode foods with higher added value, such as the quick freezing of large-scale foods such as processed fish and shrimp, shelled shrimp, seafood, fresh river, fresh meat products, high-grade fruits, seasoning bags, out-of-season fruits, medicinal materials and the like, and can be combined with other food lines to form an automatic line.
However, the consumption of the liquid nitrogen by the conventional liquid nitrogen tunnel type instant freezer is very large, so that the Chinese patent application with the prior art publication number of CN104501490B discloses a tunnel type liquid nitrogen instant freezer which comprises a tunnel type freezing chamber and a surrounding type conveying mesh belt in the freezing chamber, wherein a liquid nitrogen plugging device is respectively arranged at a feeding end and a discharging end of the freezing chamber; the liquid nitrogen plugging device comprises an air box arranged at the top of the conveying net belt, an air inlet channel is arranged at the top of the air box, an air blowing port is arranged at the bottom of the air box, the air box is fixed with a top plate of the freezing chamber and two side walls in a sealing manner, an air inlet communicated with the air inlet channel of the air box is arranged on the top plate of the freezing chamber, and a fan is arranged on the air inlet; the width of the air blowing opening is consistent with that of the freezing chamber, and a material conveying opening is formed between the air blowing opening and the conveying mesh belt. However, the technical solution adopted by the prior art makes the liquid nitrogen not fully contacted with the refrigerated articles, and the air refrigerated by the liquid nitrogen is directly discharged out of the device, so that the liquid nitrogen is not fully utilized, or the liquid nitrogen is wasted.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the following technical scheme: the tunnel type liquid nitrogen instant freezer comprises a bottom plate, wherein two symmetrically arranged conveying belt wheel brackets are fixedly arranged on the bottom plate, two conveying belt wheels are rotatably arranged between the two conveying belt wheel brackets, the two conveying belt wheels are in transmission connection through a conveying belt, a return port is further formed in the conveying belt wheel brackets, and a cooling chamber supporting plate is fixedly arranged on each of the two conveying belt wheel brackets; the bottom plate is also fixedly provided with a refrigeration assembly, the refrigeration assembly comprises two symmetrically arranged converging cavities, each converging cavity is fixedly provided with a bottom circulating pipe, the middle part of each bottom circulating pipe is fixedly provided with a circulating pressurizing chamber, each circulating pressurizing chamber is fixedly provided with a top circulating pipe, the two top circulating pipes are fixedly connected through a spray nozzle, a cooling chamber is fixedly arranged between two cooling chamber supporting plates, the lower surface of the cooling chamber is provided with air holes, the cooling chamber is fixedly provided with a drainage pipe, the drainage pipe is fixedly provided with a mixing cone, and the mixing cone is fixedly connected with the spray nozzle; the automatic transmission device is characterized in that a driving assembly for driving the conveying belt wheel to rotate is fixedly arranged on the bottom plate, the driving assembly comprises a spline shaft fixedly connected with the conveying belt wheel, two symmetrical movable friction wheels are arranged on the spline shaft through spline sliding, a spring is fixedly arranged between the two movable friction wheels, the spring surrounds the spline shaft, two symmetrical extrusion cone wheels are arranged on the surface friction transmission of the movable friction wheels, the two extrusion cone wheels are fixedly connected, the two extrusion cone wheels are rotatably arranged on an extrusion cone wheel support, and the extrusion cone wheel support is fixedly arranged on a telescopic rod of an electric cylinder.
Preferably, an electromagnet is fixedly arranged between the two conveying belt wheel brackets, a sliding magnetic attraction plate is elastically arranged on the electromagnet through a plate spring which is obliquely arranged, the sliding magnetic attraction plate is in sliding fit with the conveying belt, ventilation holes are formed in the conveying belt and the sliding magnetic attraction plate, and a gap is reserved between the electromagnet and the conveying belt wheel brackets.
Preferably, the converging cavity is fixedly connected with the conveying belt wheel support, the converging cavity is communicated with the inside of the bottom circulating pipe, the bottom circulating pipe is communicated with the inside of the circulating plenum chamber, the circulating plenum chamber is communicated with the inside of the top circulating pipe, and the top circulating pipe is communicated with the inside of the spray nozzle.
Preferably, the lower surface of the cooling chamber is also provided with an accelerating electric fan, the interior of the cooling chamber is communicated with a drainage pipe, and the drainage pipe is communicated with the interior of the mixing cone.
Preferably, a circulating booster motor is fixedly arranged in the circulating booster chamber, a circulating booster fan is fixedly arranged on an output shaft of the circulating booster motor, and the two top circulating pipes are fixedly arranged on the bottom plate through circulating pipe brackets.
Preferably, the cooling chamber support plate is fixedly provided with a feeding plate through a feeding plate support, the bottom plate is provided with a through hole, an exhaust pump is fixedly arranged at the through hole, an air inlet of the exhaust pump is communicated with the through hole, and an exhaust pipe is fixedly arranged at an exhaust port of the exhaust pump.
Preferably, the spline shaft is rotatably arranged on the movable friction wheel support, the movable friction wheel support is fixedly arranged on the bottom plate, a driving motor for driving the extrusion cone wheel to rotate is fixedly arranged on the extrusion cone wheel support, the extrusion cone wheel support is in sliding connection with the bottom plate, and the electric cylinder is fixedly connected with the bottom plate.
Preferably, the bottom plate is further fixedly provided with a shell, the outer side of the shell is provided with a liquid nitrogen storage tank, an opening of the liquid nitrogen storage tank is fixedly connected with a flow delivery pipe through a feed pump, one end of the flow delivery pipe, far away from the liquid nitrogen storage tank, extends to the middle of the injection nozzle, a feeding pipe is further arranged in the liquid nitrogen storage tank and connected with an inlet of the feed pump, and openings are formed in positions, located at two ends of the conveying belt, of the shell.
Compared with the prior art, the invention has the following beneficial effects: (1) The refrigeration component provided by the invention realizes the repeated cyclic utilization of liquid nitrogen, and reduces the consumption of liquid nitrogen, thereby reducing the quick freezing cost; (2) According to the invention, the accelerating electric fan is used for blowing liquid nitrogen and cold air to the refrigerated articles, so that the refrigerating speed of the articles is accelerated, the length of the conveyor belt can be further shortened, and the overall floor area of the device is further reduced; (3) The invention can shake the refrigerated goods through the matching of the electromagnet, the sliding magnetic attraction plate and the plate spring, so that the cold air can fully contact with the surface of the goods.
Drawings
Fig. 1 is a schematic view of the structure of the housing of the present invention.
Fig. 2 is a cross-sectional view of the overall structure of the present invention.
FIG. 3 is a schematic diagram of the structure of FIG. 2A according to the present invention.
Fig. 4 is a schematic diagram of the structure of fig. 2B according to the present invention.
Fig. 5 is a schematic diagram of the overall structure of the present invention.
Fig. 6 is a view of the installation position of the electric cylinder of the invention.
FIG. 7 is a schematic view of the structure of FIG. 6 at C according to the present invention.
FIG. 8 is a schematic view of the structure of the cooling chamber of the present invention.
Fig. 9 is a schematic view of the structure of the conveyor belt of the present invention.
Fig. 10 is a schematic view showing the structure of the leaf spring of the present invention.
In the figure: 101-a bottom plate; 102-a conveyor belt pulley bracket; 1021-return port; 103-a cooling chamber support plate; 104-an electromagnet; 105-conveyor belt; 106-a conveyor belt wheel; 107-sliding magnetic attraction plates; 108-leaf springs; 109-a feed plate holder; 110-a feed plate; 111-an exhaust pump; 112-exhaust pipe; 201-top circulation tube; 202-a bottom circulation pipe; 203-a liquid nitrogen storage tank; 204-a flow tube; 205-feed pump; 206-feeding pipe; 207-a circulation plenum; 208-a circulating booster motor; 209-a circulating booster fan; 210-spray nozzle; 211-mixing cone; 212-drainage pipe; 213-a circulation tube holder; 214-a temperature reducing chamber; 215-accelerating an electric fan; 216-confluence chamber; 301-electric cylinder; 302-extruding a cone pulley bracket; 303-extruding cone pulleys; 304-a drive motor; 305-a movable friction wheel bracket; 306-a movable friction wheel; 307-springs; 308-spline shaft; 4-a housing.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-10, the invention provides a tunnel type liquid nitrogen instant freezer, which comprises a bottom plate 101, wherein two symmetrically arranged conveying belt wheel brackets 102 are fixedly arranged on the bottom plate 101, two conveying belt wheels 106 are rotatably arranged between the two conveying belt wheel brackets 102, the two conveying belt wheels 106 are in transmission connection through a conveying belt 105, a return port 1021 is further formed in the conveying belt wheel brackets 102, and a cooling chamber supporting plate 103 is fixedly arranged on each of the two conveying belt wheel brackets 102. An electromagnet 104 is fixedly arranged between the two conveying belt wheel brackets 102, a sliding magnetic attraction plate 107 is elastically arranged on the electromagnet 104 through a plate spring 108 which is obliquely arranged, the sliding magnetic attraction plate 107 is in sliding fit with the conveying belt 105, ventilation holes are formed in the conveying belt 105 and the sliding magnetic attraction plate 107, a gap is reserved between the electromagnet 104 and the conveying belt wheel brackets 102, a feeding plate 110 is fixedly arranged on a cooling chamber supporting plate 103 through a feeding plate bracket 109, a through hole is formed in the bottom plate 101, an exhaust pump 111 is fixedly arranged at the through hole, an air inlet of the exhaust pump 111 is communicated with the through hole, and an exhaust pipe 112 is fixedly arranged at an exhaust outlet of the exhaust pump 111.
The bottom plate 101 is further fixedly provided with a refrigerating assembly, the refrigerating assembly comprises two symmetrically arranged converging cavities 216, each converging cavity 216 is fixedly provided with a bottom circulating pipe 202, the middle part of each bottom circulating pipe 202 is fixedly provided with a circulating pressurizing chamber 207, each circulating pressurizing chamber 207 is fixedly provided with a top circulating pipe 201, the two top circulating pipes 201 are fixedly connected through an injection nozzle 210, a cooling chamber 214 is fixedly arranged between two cooling chamber supporting plates 103, the lower surface of the cooling chamber 214 is provided with ventilation holes, the cooling chamber 214 is fixedly provided with a drainage pipe 212, the drainage pipe 212 is fixedly provided with a mixing cone 211, and the mixing cone 211 is fixedly connected with the injection nozzle 210. The converging cavity 216 is fixedly connected with the conveying belt wheel support 102, the converging cavity 216 is communicated with the inside of the bottom circulating pipe 202, the bottom circulating pipe 202 is communicated with the inside of the circulating pressurizing chamber 207, the circulating pressurizing chamber 207 is communicated with the inside of the top circulating pipe 201, the top circulating pipe 201 is communicated with the inside of the spraying nozzle 210, an accelerating electric fan 215 is further arranged on the lower surface of the cooling chamber 214, the inside of the cooling chamber 214 is communicated with the discharging pipe 212, the discharging pipe 212 is communicated with the inside of the mixing cone 211, the circulating pressurizing chamber 207 is fixedly provided with a circulating pressurizing motor 208, an output shaft of the circulating pressurizing motor 208 is fixedly provided with a circulating pressurizing fan 209, the two top circulating pipes 201 are fixedly arranged on the bottom plate 101 through the circulating pipe support 213, the bottom plate 101 is fixedly provided with a shell 4, the outside of the shell 4 is provided with a liquid nitrogen storage tank 203, an opening of the liquid nitrogen storage tank 203 is fixedly connected with a flow conveying pipe 204 through a feeding pump 205, one end of the flow conveying pipe 204 far from the middle of the spraying nozzle 210 is extended to the middle of the spraying nozzle 210, the inside of the liquid nitrogen storage tank 203 is further provided with a feeding pipe 206, the feeding pipe 206 is connected with an inlet of the feeding pump 205, and the shell 4 is provided with openings at positions of two ends of the conveying belt 105.
The bottom plate 101 is fixedly provided with a driving assembly for driving the conveying belt wheel 106 to rotate, the driving assembly comprises a spline shaft 308 fixedly connected with the conveying belt wheel 106, two symmetrically arranged movable friction wheels 306 are slidably arranged on the spline shaft 308 through splines, a spring 307 is fixedly arranged between the two movable friction wheels 306, the spring 307 surrounds the spline shaft 308, two symmetrically arranged extrusion cone wheels 303 are in friction transmission on the surfaces of the two movable friction wheels 306, the two extrusion cone wheels 303 are fixedly connected, the two extrusion cone wheels 303 are rotatably arranged on extrusion cone wheel supports 302, the extrusion cone wheel supports 302 are fixedly arranged on telescopic rods of the electric cylinders 301, the spline shaft 308 is rotatably arranged on the movable friction wheel supports 305, the movable friction wheel supports 305 are fixedly arranged on the bottom plate 101, a driving motor 304 for driving the extrusion cone wheels 303 to rotate is fixedly arranged on the extrusion cone wheel supports 302, the extrusion cone wheel supports 302 are slidably connected with the bottom plate 101, and the electric cylinders 301 are fixedly connected with the bottom plate 101.
The invention discloses a tunnel type liquid nitrogen quick freezer, which has the following working principle: an article to be quick-frozen is placed on the feeding plate 110 (the feeding plate 110 is provided with a vibration element, the article is convenient to slide off), then the article slides off on the conveyor belt 105, meanwhile, the driving motor 304 is started, the output shaft of the driving motor 304 drives the extrusion cone 303 to rotate, the extrusion cone 303 rotates to drive the movable friction wheel 306 to rotate, the movable friction wheel 306 rotates to drive the spline shaft 308 to rotate (when the transmission ratio of the extrusion cone 303 to the spline shaft 308 is required to be adjusted, the telescopic rod of the electric cylinder 301 drives the extrusion cone bracket 302 to move, the extrusion cone bracket 302 moves to drive the extrusion cone 303 to approach the movable friction wheel 306, because the distance between the two extrusion cones 303 is fixed, the two movable friction wheels 306 are mutually close under the restriction of the extrusion cone 303, and the spring 307 is in a compressed state, realize speed reduction and torque increase, which is suitable for conveying articles with larger mass, whereas when the extrusion cone pulley 303 is far away from the movable friction wheels 306, the two movable friction wheels 306 are far away from each other to realize the purpose of speed increase), the spline shaft 308 rotates to drive the conveying belt pulley 106 to rotate, the conveying belt pulley 106 rotates to drive the conveying belt 105 to slide on the sliding magnetic attraction plate 107, at the moment, the articles to be quick-frozen on the conveying belt 105 can move along the conveying belt 105, in the moving process, the electromagnet 104 is required to be continuously started, the sliding magnetic attraction plate 107 can be attracted to move downwards when the electromagnet 104 is started, the sliding magnetic attraction plate 107 can spring up (along the direction far away from the feeding plate 110) under the action of the leaf spring 108, so that the articles on the conveying belt 105 can vibrate, cold air can conveniently enter between the contact surfaces of the conveying belt 105 and the articles, accelerating the freezing speed. At the same time, the feed pump 205 is required to be started, the feed pump 205 pumps the liquid nitrogen in the liquid nitrogen storage tank 203 into the flow pipe 204 through the feeding pipe 206 (a small amount of liquid nitrogen is pumped and cannot be sprayed like a faucet), meanwhile, the start of the circulation pressurizing motor 208 is controlled, the output shaft of the circulation pressurizing motor 208 drives the circulation pressurizing fan 209 to rotate, the circulation pressurizing fan 209 rotates to pump the air in the bottom circulation pipe 202 into the top circulation pipe 201, then the air flow is sprayed downwards along the edge of the inner wall of the mixing cone 211 through the spraying nozzle 210, the pressure at the edge of the inner wall of the mixing cone 211 is reduced, the pressure in the middle of the mixing cone 211 is relatively high, so that the air on the upper side of the spraying nozzle 210 and the mixing cone 211 is brought into the mixing cone 211 and flows along, and the liquid nitrogen from the inside of the flow pipe 204 also flows into the mixing cone 211 (because the opening of the flow pipe 204 is formed in the mixing cone 211), air is mixed with liquid nitrogen into the exhaust pipe 212, then the exhaust pipe 212 sends the liquid nitrogen and the air into the cooling chamber 214, flows downwards (naturally downwards because the temperature of the air is low) through the air holes formed in the cooling chamber 214, meanwhile, the accelerating fan 215 rotates, the accelerating fan 215 blows the cold air and the liquid nitrogen flowing downwards to the surface of objects on the conveyor belt 105, thereby realizing the quick freezing effect (because the temperature of the liquid nitrogen is low), the superfluous frozen air can continue to flow downwards, passes through gaps between the conveyor belt 105 and two sides of the conveyor belt pulley bracket 102, enters the confluence chamber 216 through the backflow port 1021, is sucked into the bottom circulation pipe 202 to realize circulation (the temperature of the air is higher than that above the conveyor belt 105 at the moment, therefore, when the circulating air reaches-120 deg.c, the circulating booster motor 208 and the feed pump 205 are stopped and the exhaust pump 111 is turned on to discharge the nitrogen and cold air generated inside through the exhaust pipe 112, because the circulating air absorbs a part of the temperature of the liquid nitrogen when the circulating air comes into contact with the new liquid nitrogen.
Claims (8)
1. The utility model provides a tunnel type liquid nitrogen frozen machine, includes bottom plate (101), and fixed mounting has conveyer belt wheel support (102) that two symmetries set up on bottom plate (101), its characterized in that: two conveying belt wheels (106) are rotatably arranged between the two conveying belt wheel brackets (102), the two conveying belt wheels (106) are in transmission connection through a conveying belt (105), a reflow opening (1021) is further formed in the conveying belt wheel brackets (102), and a cooling chamber supporting plate (103) is fixedly arranged on each of the two conveying belt wheel brackets (102);
the cooling device is characterized in that a cooling assembly is fixedly installed on the bottom plate (101) and comprises two symmetrically-arranged converging cavities (216), a bottom circulating pipe (202) is fixedly installed on each converging cavity (216), a circulating pressurizing chamber (207) is fixedly installed in the middle of each bottom circulating pipe (202), a top circulating pipe (201) is fixedly installed on each circulating pressurizing chamber (207), two top circulating pipes (201) are fixedly connected through an injection nozzle (210), a cooling chamber (214) is fixedly installed between two cooling chamber supporting plates (103), ventilation holes are formed in the lower surface of each cooling chamber (214), a drainage pipe (212) is fixedly installed on each cooling chamber (214), a mixing cone (211) is fixedly installed on each drainage pipe (212), and each mixing cone (211) is fixedly connected with the injection nozzle (210);
the automatic transmission device is characterized in that a driving assembly for driving the conveying belt wheel (106) to rotate is fixedly mounted on the bottom plate (101), the driving assembly comprises a spline shaft (308) fixedly connected with the conveying belt wheel (106), two symmetrically-arranged movable friction wheels (306) are mounted on the spline shaft (308) in a sliding mode through splines, springs (307) are fixedly mounted between the two movable friction wheels (306), the springs (307) encircle the spline shaft (308), two symmetrically-arranged extrusion cone wheels (303) are in friction transmission on the surfaces of the movable friction wheels (306), the two extrusion cone wheels (303) are fixedly connected, the two extrusion cone wheels (303) are rotatably mounted on an extrusion cone wheel support (302), and the extrusion cone wheel support (302) is fixedly mounted on a telescopic rod of the electric cylinder (301).
2. The tunnel-type liquid nitrogen instant freezer of claim 1, wherein: an electromagnet (104) is fixedly arranged between the two conveying belt wheel brackets (102), a sliding magnetic attraction plate (107) is elastically arranged on the electromagnet (104) through a plate spring (108) which is obliquely arranged, the sliding magnetic attraction plate (107) is in sliding fit with the conveying belt (105), ventilation holes are formed in the conveying belt (105) and the sliding magnetic attraction plate (107), and a gap is reserved between the electromagnet (104) and the conveying belt wheel brackets (102).
3. The tunnel-type liquid nitrogen instant freezer of claim 2, wherein: the converging cavity (216) is fixedly connected with the conveying belt wheel support (102), the converging cavity (216) is communicated with the inside of the bottom circulating pipe (202), the bottom circulating pipe (202) is communicated with the inside of the circulating pressurizing chamber (207), the circulating pressurizing chamber (207) is communicated with the inside of the top circulating pipe (201), and the top circulating pipe (201) is communicated with the inside of the jet nozzle (210).
4. A tunnel-type liquid nitrogen instant freezer according to claim 3, wherein: the lower surface of the cooling chamber (214) is also provided with an accelerating electric fan (215), the inside of the cooling chamber (214) is communicated with a drainage pipe (212), and the drainage pipe (212) is communicated with the inside of the mixing cone (211).
5. The tunnel-type liquid nitrogen instant freezer of claim 4, wherein: the circulating booster is characterized in that a circulating booster motor (208) is fixedly arranged in the circulating booster chamber (207), a circulating booster fan (209) is fixedly arranged on an output shaft of the circulating booster motor (208), and the two top circulating pipes (201) are fixedly arranged on the bottom plate (101) through circulating pipe supports (213).
6. The tunnel-type liquid nitrogen instant freezer of claim 5, wherein: the cooling chamber support plate (103) is fixedly provided with a feeding plate (110) through a feeding plate support (109), the bottom plate (101) is provided with a through hole, an exhaust pump (111) is fixedly arranged at the through hole, an air inlet of the exhaust pump (111) is communicated with the through hole, and an exhaust pipe (112) is fixedly arranged at an exhaust port of the exhaust pump (111).
7. The tunnel-type liquid nitrogen instant freezer of claim 6, wherein: the spline shaft (308) is rotatably mounted on the movable friction wheel support (305), the movable friction wheel support (305) is fixedly mounted on the bottom plate (101), a driving motor (304) for driving the extrusion cone wheel (303) to rotate is fixedly mounted on the extrusion cone wheel support (302), the extrusion cone wheel support (302) is slidably connected with the bottom plate (101), and the electric cylinder (301) is fixedly connected with the bottom plate (101).
8. The tunnel-type liquid nitrogen instant freezer of claim 7, wherein: the utility model discloses a liquid nitrogen storage device, including bottom plate (101), shell (4) has still been fixedly disposed on bottom plate (101), the outside of shell (4) is provided with liquid nitrogen holding vessel (203), and the opening part of liquid nitrogen holding vessel (203) is through feed pump (205) fixedly connected with delivery pipe (204), and the one end that delivery pipe (204) kept away from liquid nitrogen holding vessel (203) extends to the middle part of injection nozzle (210), the inside of liquid nitrogen holding vessel (203) still is provided with material loading pipe (206), and material loading pipe (206) are connected with the entry of feed pump (205), the position that shell (4) are located conveyer belt (105) both ends is equipped with the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310548811.4A CN116294343B (en) | 2023-05-16 | 2023-05-16 | Tunnel type liquid nitrogen instant freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310548811.4A CN116294343B (en) | 2023-05-16 | 2023-05-16 | Tunnel type liquid nitrogen instant freezer |
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| Publication Number | Publication Date |
|---|---|
| CN116294343A true CN116294343A (en) | 2023-06-23 |
| CN116294343B CN116294343B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310548811.4A Active CN116294343B (en) | 2023-05-16 | 2023-05-16 | Tunnel type liquid nitrogen instant freezer |
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| CN210070349U (en) * | 2019-05-14 | 2020-02-14 | 广州鲜之源生态冷链技术有限公司 | Tunnel type fresh-keeping instant freezer |
| CN211233512U (en) * | 2019-10-13 | 2020-08-11 | 南通冰源冷冻设备有限公司 | High-efficient liquid nitrogen instant freezer |
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2023
- 2023-05-16 CN CN202310548811.4A patent/CN116294343B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203258947U (en) * | 2013-05-10 | 2013-10-30 | 科威嘉尼（北京）科技有限公司 | Tunnel quick-freezing device capable of recovering nitrogen |
| CN104596175A (en) * | 2015-01-07 | 2015-05-06 | 王琰 | Improved tunnel type liquid nitrogen instant freezer |
| CN208154894U (en) * | 2018-04-24 | 2018-11-27 | 安徽百润食品有限公司 | A kind of tunnel type boiled dumpling instant freezer |
| CN109990543A (en) * | 2019-05-14 | 2019-07-09 | 广州鲜之源生态冷链技术有限公司 | A kind of quick-freezing fresh-keeping method and tunnel type fresh keeping refrigerator |
| CN210070349U (en) * | 2019-05-14 | 2020-02-14 | 广州鲜之源生态冷链技术有限公司 | Tunnel type fresh-keeping instant freezer |
| CN211233512U (en) * | 2019-10-13 | 2020-08-11 | 南通冰源冷冻设备有限公司 | High-efficient liquid nitrogen instant freezer |
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| CN116294343B (en) | 2023-08-04 |
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