CN113446780B - Food grade cold chain conveyer with double helix frozen machine - Google Patents
Food grade cold chain conveyer with double helix frozen machine Download PDFInfo
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- CN113446780B CN113446780B CN202111018307.0A CN202111018307A CN113446780B CN 113446780 B CN113446780 B CN 113446780B CN 202111018307 A CN202111018307 A CN 202111018307A CN 113446780 B CN113446780 B CN 113446780B
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- 235000013305 food Nutrition 0.000 title claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 72
- 238000005057 refrigeration Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 95
- 238000005056 compaction Methods 0.000 claims description 28
- 230000008676 import Effects 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 65
- 238000007710 freezing Methods 0.000 description 26
- 230000008014 freezing Effects 0.000 description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 238000003860 storage Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 16
- 238000004378 air conditioning Methods 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 238000001816 cooling Methods 0.000 description 8
- 238000005457 optimization Methods 0.000 description 8
- 238000005192 partition Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 235000013611 frozen food Nutrition 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material 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
- F25D13/00—Stationary devices, e.g. cold-rooms
- F25D13/06—Stationary devices, e.g. cold-rooms with conveyors carrying articles to be cooled through the cooling space
- F25D13/062—Stationary devices, e.g. cold-rooms with conveyors carrying articles to be cooled through the cooling space with refrigerated conveyors
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
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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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
- F25D23/006—General constructional features for mounting refrigerating machinery components
-
- 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
Abstract
The invention discloses a food grade cold chain transportation device with a double-helix instant freezer, which comprises a fixing device, a refrigerating device and a heat exchange device, power device and flow distribution device, fixing device and refrigerating plant fastening connection, heat transfer device and fixing device connect, heat transfer device and refrigerating plant connect, power device and fixing device fastening connection, flow distribution device and fixing device fastening connection, power device and flow distribution device intercommunication, flow distribution device and heat transfer device intercommunication, fixing device includes the box, chamber door and fixing base, be equipped with on the box and carry the thing chamber, it sets up to carry thing chamber one side opening, chamber door and box opening part rotate to be connected, fixing base one side and carry thing intracavity wall fastening connection, be equipped with the refrigeration chamber on the fixing base, be equipped with refrigerating plant in the refrigeration intracavity, heat transfer device includes heat transfer room and heat exchanger fin, heat transfer room one side and fixing base fastening connection.
Description
Technical Field
The invention relates to the technical field of cold chain transportation, in particular to a food-grade cold chain transportation device with a double-helix instant freezer.
Background
Along with the continuous development of frozen food industry, matched quick freezing and transportation equipment is gradually improved, but the equipment still faces challenges in many aspects, especially in the cold chain transportation process, a proper storage environment is provided for frozen products for the guarantee, refrigeration is carried out by additionally arranging a refrigerating device on a transportation vehicle, however, along with the complication of freezing transportation types, the storage temperatures of different frozen foods are different, the existing refrigerating equipment can only provide a constant temperature for refrigeration, high and low temperature differentiation cannot be carried out, and products meeting temperature diversification cannot be refrigerated.
In addition, in order to reduce cold chain cost of transportation, often can carry the product of refrigerated transport when transporting frozen food, in order to guarantee cold-stored environment, often directly keep apart cold district and freezing district through the heat insulating board, and draw some air conditioning from freezing district to cold district, can occupy limited transportation space in the conveyer through physical isolation, also inconvenient dismantlement when loading and unloading, reduce cold chain conveying efficiency, the cold air that draws out from freezing district directly lets in the cold district of rear side, can't carry out temperature real-time regulation and control, in case the temperature is low excessively, the product that can lead to cold district is frozen, cause the freeze loss, influence normal use, cause the waste.
Disclosure of Invention
The invention aims to provide a food-grade cold chain conveying device with a double-helix instant freezer, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
a food grade cold chain transportation device with a double-screw quick freezer comprises a fixing device, a refrigerating device, a heat exchange device, a power device and a flow distribution device, wherein the fixing device is fixedly connected with the refrigerating device, the heat exchange device is connected with the fixing device, the heat exchange device is connected with the refrigerating device, the power device is fixedly connected with the fixing device, the flow distribution device is fixedly connected with the fixing device, the power device is communicated with the flow distribution device, the flow distribution device is communicated with the heat exchange device, the fixing device comprises a box body, a box door and a fixing seat, a carrying cavity is arranged on the box body, an opening at one side of the carrying cavity is arranged, the box door is rotatably connected with the opening of the box body, one side of the fixing seat is fixedly connected with the inner wall of the carrying cavity, the refrigerating cavity is arranged on the fixing seat, the refrigerating device is arranged in the refrigerating cavity, the heat exchange device comprises a heat exchange chamber and a heat exchange sheet, one side of the heat exchange chamber is fixedly connected with the fixing seat, and a heat exchange chamber is arranged on the heat exchange chamber, the connection part of the heat exchange chamber and the fixed seat is respectively provided with a through hole, one end of the heat exchange sheet penetrates through the through hole, and the two ends of the heat exchange sheet are respectively communicated with the refrigerating device and the heat exchange cavity.
The fixing device is a main installation foundation, the refrigerating device is fixed through fastening connection, the heat exchange device is positioned on one side of the fixing seat and is fixed through the fixing seat and the heat exchange device, the connection performance is improved through the fastening connection, the flow distribution device distributes internal circulating air conditioning to prevent the cold air temperature from being too low to influence the cold storage part of the loading cavity, the loading cavity is divided into a freezing area and a cold storage area through the cold air distribution to improve the cold chain transportation efficiency of different types of goods, a box door is arranged at the outlet of the loading cavity, after the loading of the cold chain goods is finished, the loading cavity is blocked through the box door to carry out internal air circulation to prevent external impurities from entering and influencing the internal food transportation safety performance, the fixing seat is fixedly installed through the box body, the fixing seat is used for installing the refrigerating device through the internal refrigerating cavity, and the refrigerating device is a main cold air input source, the heat exchange cavity on the heat exchange chamber is a main heat exchange place, heat exchange is carried out through the heat exchange fins, the heat exchange fins are fixed through the through holes, and the internal freezing effect is guaranteed through heat exchange.
Further, the refrigerating device is tightly connected with the inner wall of the refrigerating cavity, the refrigerating device comprises a compressor, a condenser, an evaporator, a storage and an expansion valve, the storage, the expansion valve, the evaporator, the compressor and the condenser are sequentially connected in series through a pipeline, the outlet end of the condenser is communicated with the storage through a pipeline, one end of a heat exchange sheet is inserted into the evaporator evaporation chamber of the evaporator, the heat exchange device also comprises a partition plate, the partition plate is tightly connected with a heat exchange cavity, the heat exchange cavity is divided into two cavities by the partition plate, two fixing grooves are arranged on the heat exchange cavity, a gas collection assembly is arranged in the fixing grooves, the gas collection assembly comprises a mounting seat, a rotating shaft and a jacking block, a rotating shaft groove is arranged on the mounting seat, the rotating shaft is rotatably connected with the rotating shaft groove, a rotating cavity is arranged on the upper side of the rotating shaft groove, the upper end of the rotating shaft is inserted into the rotating cavity, a plurality of rotating paddles are arranged on the rotating shaft, the rotating cavity is obliquely connected with the rotating surface in a sliding way, and a plurality of air inlets are arranged on the upper side of the rotating cavity, air inlet and gyration chamber intercommunication are equipped with a plurality of jacking grooves on the mount pad, jacking piece and jacking groove sliding connection, and the jacking inslot is equipped with reset spring, reset spring upper end and jacking piece fastening connection, and the jacking piece upside is equipped with the driving surface, and the driving surface slope is arranged, is equipped with the air guide groove on the jacking piece, air guide groove upper end and gyration chamber intercommunication, and jacking groove lateral wall hypomere is equipped with the gas outlet, and air guide groove and jacking groove gas outlet intermittent type switch on.
The storage device, the expansion valve, the evaporator, the compressor and the condenser are respectively fixed through the refrigeration cavity, the storage device is connected in series through the pipeline, the storage device is used for storing a nitrogen source, liquid nitrogen is controlled by the expansion valve, the liquid nitrogen is evaporated and absorbed in the evaporation chamber of the evaporator and is changed into a gaseous state, heat exchange is carried out through the heat exchange plate, the temperature of the heat exchange plate is reduced, the evaporated gaseous nitrogen is compressed through the compressor, the compressed nitrogen source is cooled through the condenser, the cooled liquid nitrogen source is input into the storage device again through the pipeline for cyclic utilization, the heat exchange cavity is separated through the partition plate and is changed into two cavities, a spiral pipe is arranged in each cavity, air is refrigerated through the two spiral pipes, the mounting seat is supported through the fixing groove by the heat exchange chamber, the rotating shaft rotates around the axis in the rotating shaft groove, the rotating paddle is driven to rotate through rotation of the rotating shaft, arrange through changeing the oar slope, make the oar inclined plane of changeing, gyration chamber bottom side and transmission face form a cavity, rotate along with changeing the oar, compress gas, it moves down to drive the jacking piece through the transmission face, thereby make compressed gas flow out through leading the gas inslot, when the gas outlet intercommunication that leads gas groove and jacking groove was moved down to the jacking piece, compressed gas flows out, the jacking piece moves down and compresses reset spring, when moving down to the lower extreme, change the oar and rotate jacking piece upper end, the jacking piece shifts up under reset spring effect afterwards, carry out next gas compression.
Further, the gas collection subassembly still includes drive gear, drive gear is established to the cover in the pivot, be equipped with two motor grooves on the heat transfer room, power device includes servo motor, servo motor arranges the motor inslot in, the servo motor output is equipped with input gear, motor groove and pivot groove intercommunication, input gear and drive gear flank of tooth meshing, pivot downwardly extending is equipped with the spiral pipe, spiral pipe pitch crescent from the top down, the spiral pipe upper end is equipped with a plurality of air current imports along circumference, air current import and jacking groove hypomere gas outlet intercommunication.
Fixing a servo motor through a motor groove, wherein the servo motor is driven through an input gear so as to drive a transmission gear to rotate, the transmission gear drives a rotating shaft to rotate, the transmission gear is used for carrying out auxiliary support on the rotation of the rotating shaft, the support performance is improved, compressed gas enters a spiral pipe through a gas outlet at the lower section of a jacking groove, the spiral pipe and a high-temperature end of a heat exchange plate are positioned in a heat exchange cavity, the heat exchange refrigeration is carried out on gas flow in the spiral pipe through the heat exchange plate, the refrigerated gas is discharged through an outlet at the lower end of the spiral pipe, the outlet gas is obliquely discharged downwards through the gradual pitch arrangement, the spiral pipe rotates along with the spiral pipe, the spiral pipe generates a cold gas flow layer with a downward cone angle, the flow of the cooled and compressed gas in unit time is gradually increased along with the increase of the rotating speed of the servo motor, the servo motor is independently driven through two servo motors, and the rotating speed difference is adjusted, form two different cold gas layers to form two freezing regions that the temperature is different, thereby adjust the temperature of different freezing demands, carry out high low temperature and distinguish, reduce the dispersion degree through the air conditioning local circulation, make and carry the thing chamber and divide into cold-stored district and freezing district, improve cold chain transportation quality.
Furthermore, the power device also comprises an induced draft fan and an induced draft pipe, the outer frame of the induced draft fan is fastened and connected with the inner wall of the carrying cavity, the lower end of the induced draft pipe is positioned on the lower wall surface of the carrying cavity, the lower end of the induced draft pipe faces the bottom surface of the carrying cavity on the lower side of the spiral pipe, the flow distribution device comprises a distribution seat, a distribution paddle, a transmission air bag and a compaction sliding block, one side of the distribution seat is fastened and connected with the wall surface of the carrying cavity, a first branch air passage and a second branch air passage are arranged on the distribution seat, an intersection inlet is arranged at the intersection of the bottom ends of the first branch air passage and the second branch air passage, the upper end of the induced draft pipe is communicated with the intersection inlet, the upper end of the first branch air passage is communicated with the air inlet end of the induced draft fan, an induced draft passage is arranged on the distribution seat, paddle grooves are respectively communicated with the induced draft passage and the second branch air passage, distribution paddles are arranged in the paddle grooves, the upper ends of the two distribution paddles are respectively inserted into the induced draft passage and the second branch air passage, be equipped with the transmission groove between two oar grooves, be equipped with the transmission shaft in the transmission groove, the transmission shaft both ends are connected with distribution oar transmission respectively, transmission groove one side is equipped with the mounting groove, mounting groove and transmission groove intercommunication, be equipped with the compaction slider in the mounting groove, compaction slider and mounting groove sliding connection, the compaction slider is kept away from transmission groove one side and is equipped with the transmission gasbag, the transmission gasbag is kept away from compaction slider one side and is connected with the mounting groove wall, the outer disc friction connection of transmission gasbag one end and transmission shaft is kept away from to the compaction slider.
When goods are filled in the loading cavity, the spiral pipe rotates to form a downward cold air film, the cold air film is dispersed downwards under the action of gravity and spiral force, so that the freezing effect is ensured, cold air at the lower end of the spiral pipe is collected through the induced draft pipe, the problem that the cooling temperature at the bottom is too low is avoided, the uneven cooling temperature is caused, the cooling effect is improved through internal circulation, cold air is shunted through the flow distribution device, the problem that the cold air temperature is too low and flows into a cold storage area to cause freezing loss is avoided, the distribution seat is fixed on the wall surface of the loading cavity, cold air flow enters the induced draft fan from the intersection inlet through air exhaust of the induced draft fan, a part of cold air enters the induced draft fan from the first branch air passage and is accelerated and sprayed out through the induced draft fan to form jet flow, and part of sprayed air flow flows along the upper wall surface of the loading cavity to the box door, and flows along with the increase of air supply speed when the air flow flows along the wall surface, and the radiation area of the jet flow is prolonged, the refrigeration uniformity is improved, the refrigeration effect of a refrigeration area is improved, partial cold air is divided through the air guide channel, freezing injury caused by excessive cold air delivery of the refrigeration area is avoided, the transmission shaft is supported through the transmission groove, the transmission shaft is transmitted with the distribution paddles on two sides, the fast-spraying air flow in the air guide channel impacts to drive the distribution paddles to rotate, the distribution paddles on one side of the air guide channel rotate to drive the distribution paddles on one side of the second air guide channel to rotate, the distribution paddles on the side of the second air guide channel rotate to drive the second air guide channel to exhaust air and output through the outlet, the pressing force of the compaction sliding block and the transmission shaft is ensured through the transmission air bag, when the temperature of the transmission air is too low, the interior of the transmission air bag is subjected to cold compression, the compaction sliding block and the transmission shaft reduce the pressing force, so that the friction force is reduced, the rotation speed of the distribution paddles on the side of the second air guide channel is accelerated, the exhaust efficiency is improved, and the cold air distribution ratio is changed, the cold air flow passing through the first branch air duct is reduced, so that the cold storage area is prevented from being too low in temperature.
As optimization, the air outlet of the induced draft fan is communicated with the air guide channel through the air pipe, the end, far away from the induced draft fan, of the air guide channel and the upper end of the second branch air channel are provided with the air guide pipes, and the tail ends of the air guide pipes are communicated with the air flow inlet on the rotary cavity. Partial cold air discharged by the draught fan is communicated with the air guide channel through the air pipe and converged with gas discharged from the tail end of the second branch air channel, and the partial cold air is discharged to the rotary cavity through the air guide pipe, so that the circulation effect of the internal cold air is improved, and the loss is reduced.
As optimization, the air outlet of the draught fan is provided with a refrigeration pipe, the refrigeration pipe and the upper wall surface of the carrying cavity are arranged in parallel, the box body is provided with a backflow channel, the outlet of the backflow channel is connected with the air inlet end of the draught fan, the backflow channel is provided with a plurality of inlets, and the backflow channel is communicated with the carrying cavity through the inlets. Some air conditioning of draught fan passes through the tuber pipe discharge, and another part air conditioning passes through the refrigerated storage bank of tubes discharge, and the backward flow way is carrying thing chamber upside, through import and carrying thing chamber intercommunication, makes the inside negative pressure that produces of backward flow way through the draught fan to make draught fan spun gas receive ascending heeling power, thereby improve efflux air conditioning's coverage.
As optimization, the contact end of the compaction sliding block and the transmission shaft is in an arc shape. The contact area is increased through the arc-shaped arrangement, so that the friction effect is improved.
As optimization, the inclination angle of the transmission surface and the vertical plane is smaller than that of the rotary paddle and the vertical plane, so that the upper end of the rotary paddle is firstly contacted with the upper end of the transmission surface, and the transmission effect is improved.
As optimization, the pipe diameter of the spiral pipe is gradually increased from top to bottom, the temperature of the upper end of the spiral pipe is high, the temperature of the lower end of the spiral pipe is low, and the influence of freezing on the gas transmission efficiency of the lower end is avoided.
Compared with the prior art, the invention has the following beneficial effects: compressed gas is introduced into the spiral pipe through a gas outlet at the lower section of the jacking groove, a cold gas flow layer with a downward cone angle is generated along with the rotation of the spiral pipe, the flow of the cooled and compressed gas in unit time is gradually increased along with the increase of the rotating speed of the servo motors, the two servo motors are independently driven, and two different cold gas layers are formed by adjusting the rotating speed difference, so that two freezing areas with different temperatures are formed, the temperatures of different freezing requirements are adjusted, and high and low temperature differentiation is performed; the dispersion degree is reduced through the local circulation of cold air, so that the loading cavity is divided into a cold storage area and a freezing area, and is isolated through an airflow layer, thereby avoiding physical isolation and improving the cold chain transportation quality; cold air flow enters from the intersection inlet by air exhaust of the draught fan, is accelerated to be ejected by the draught fan to form jet flow, and when part of ejected air flow flows along the upper wall surface of the loading cavity, the flow field flows close to the wall surface along with increase of air supply speed, so that the jet flow radiation area is prolonged, the refrigeration uniformity is improved, and the refrigeration effect of a refrigeration area is improved; partial cold air is shunted through the air guide passage, the pressing force of the compaction sliding block and the transmission shaft is ensured through the transmission air bag, when the temperature of the transmission gas is too low, the interior of the transmission air bag is cooled and compressed, the pressing force of the compaction sliding block and the transmission shaft is reduced, so that the friction is reduced, the rotating speed of the distribution paddle at the side of the second branch air passage is accelerated, the exhaust efficiency is improved, the distribution ratio of the cold air is changed, the flow of the cold air passing through the first branch air passage is reduced, and the temperature of a refrigerated area is prevented from being too low; through the gradual increase of spiral pipe diameter from the top down, the spiral pipe upper end temperature is high, and the lower extreme temperature is low, avoids the lower extreme to be frozen and influences the gas transmission efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic view of the refrigeration unit of the present invention;
FIG. 3 is a schematic diagram of the dual spiral wrap cooling of the present invention;
FIG. 4 is a schematic view of the air flow cooling structure of the present invention;
FIG. 5 is a schematic view of a rotary power transmission configuration of the present invention;
FIG. 6 is a schematic view of the distributor base airflow direction of the present invention;
FIG. 7 is a sectional view taken along line A-A of the view of FIG. 6;
FIG. 8 is an enlarged view of portion B of the view of FIG. 1;
in the figure: 1-fixing device, 11-box body, 111-carrying cavity, 112-return channel, 12-box door, 13-fixing seat, 131-refrigerating cavity, 2-refrigerating device, 21-compressor, 22-condenser, 23-evaporator, 24-container, 25-expansion valve, 3-heat-exchanging device, 31-spiral tube, 32-heat-exchanging chamber, 321-heat-exchanging cavity, 322-fixing groove, 323-motor groove, 33-gas-collecting component, 331-mounting seat, 3311-rotary cavity, 3312-rotary shaft groove, 3313-lifting groove, 332-rotary shaft, 333-rotary paddle, 334-lifting block, 3341-gas-guiding groove, 335-reset spring, 336-driving gear, 35-heat-exchanging plate, 4-power device, 41-servo motor, 42-input gear, 43-induced draft fan, 44-induced draft tube, 5-flow distribution device, 51-distribution base, 511-induced draft tube, 512-first branch air channel, 513-second branch air channel, 514-paddle groove, 515-transmission groove, 516-installation groove, 52-air duct, 53-distribution paddle, 54-transmission shaft, 55-transmission air bag and 56-compaction sliding block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the technical scheme that:
as shown in figures 1-8, a food grade cold chain transportation device with a double-helix instant freezer comprises a fixing device 1, a refrigerating device 2, a heat exchange device 3, a power device 4 and a flow distribution device 5, wherein the fixing device 1 is fixedly connected with the refrigerating device 2, the heat exchange device 3 is connected with the fixing device 1, the heat exchange device 3 is connected with the refrigerating device 2, the power device 4 is fixedly connected with the fixing device 1, the flow distribution device 5 is fixedly connected with the fixing device 1, the power device 4 is communicated with the flow distribution device 5, the flow distribution device 5 is communicated with the heat exchange device 3, the fixing device 1 comprises a box body 11, a box door 12 and a fixing seat 13, a carrying cavity 111 is arranged on the box body 11, an opening of the carrying cavity 111 is arranged, the box door 12 is rotatably connected with the opening of the box body 11, one side of the fixing seat 13 is fixedly connected with the inner wall of the carrying cavity 111, a refrigerating cavity 131 is arranged on the fixing seat 13, and the refrigerating device 2 is arranged in the refrigerating cavity 131, the heat exchange device 3 comprises a heat exchange chamber 32 and a heat exchange plate 35, one side of the heat exchange chamber 32 is fixedly connected with the fixing seat 13, a heat exchange cavity 321 is arranged on the heat exchange chamber 32, through holes are respectively arranged at the joint of the heat exchange chamber 32 and the fixing seat 13, one end of the heat exchange plate 35 penetrates through the through holes, and two ends of the heat exchange plate 35 are respectively communicated with the refrigerating device 2 and the heat exchange cavity 321.
The fixing device 1 is a main installation foundation, the refrigerating device 2 is fixed through the fastening connection 1, the heat exchange device 3 is positioned on one side of the fixing seat 13 and is fixed through the fixing seat 13 and the heat exchange device 3, the connection performance is improved through the fastening connection, the flow distribution device 5 distributes internal circulation air conditioning to prevent the cold air temperature from being too low to influence the cold storage part of the loading cavity 111, the loading cavity 111 is divided into a freezing area and a cold storage area through the air conditioning distribution to improve the cold chain transportation efficiency of different kinds of goods, the box door 12 is arranged at the outlet of the loading cavity 111, after the loading of the cold chain goods is completed, the loading cavity 111 is blocked through the box door 12, the internal air circulation is carried out to prevent external impurities from entering and influence the internal food transportation safety performance, the fixing seat 13 is installed and fixed through the box body 11, the fixing seat 13 is installed on the refrigerating device 2 through the internal refrigerating cavity 131, refrigerating plant 2 is main air conditioning input source, and heat exchange cavity 321 on heat exchange chamber 32 is main heat exchange place, carries out the heat transfer through heat exchanger fin 35, fixes heat exchanger fin 35 through the through-hole, guarantees inside refrigeration effect through the heat transfer.
As shown in fig. 1 to 4, the refrigeration device 2 is tightly connected to the inner wall of the refrigeration cavity 131, the refrigeration device 2 includes a compressor 21, a condenser 22, an evaporator 23, a reservoir 24 and an expansion valve 25, the reservoir 24, the expansion valve 25, the evaporator 23, the compressor 21 and the condenser 22 are sequentially connected in series through a pipeline, the outlet end of the condenser 22 is communicated with the reservoir 24 through a pipeline, one end of a heat exchange plate 35 is inserted into the evaporation chamber of the evaporator 23, the heat exchange device 3 further includes a partition plate tightly connected to the heat exchange cavity 321, the heat exchange cavity 321 is divided into two chambers by the partition plate, two fixing grooves 322 are provided on the heat exchange chamber 32, a gas collecting assembly 33 is provided in the fixing grooves 322, the gas collecting assembly 33 includes a mounting seat 331, a rotating shaft 332 and a jacking block 334, a rotating shaft groove 3312 is provided on the mounting seat 331, the rotating shaft 332 is rotatably connected to the rotating shaft 3312, a rotating cavity 3311 is provided on the upper side of the rotating shaft 3311, the rotating shaft 332 is inserted into the rotating cavity 3311, be equipped with a plurality of commentaries on classics oar 333 on the pivot 332, the slope of commentaries on classics oar 333 is arranged, commentaries on classics oar 333 and gyration chamber 3311 wall sliding connection, gyration chamber 3311 upside is equipped with a plurality of air inlets, air inlet and gyration chamber 3311 intercommunication, be equipped with a plurality of jacking grooves 3313 on the mount pad 331, jacking piece 334 and jacking groove 3313 sliding connection, be equipped with reset spring 335 in jacking groove 3313, reset spring 335 upper end and jacking piece 334 fastening connection, jacking piece 334 upside is equipped with the driving surface, the driving surface slope is arranged, be equipped with air guide groove 3341 on the jacking piece 334, air guide groove 3341 upper end and gyration chamber 3311 intercommunication, jacking groove 3313 lateral wall hypomere is equipped with the gas outlet, air guide groove 3341 and jacking groove 3313 gas outlet intermittent type switch-on.
The reservoir 24, the expansion valve 25, the evaporator 23, the compressor 21 and the condenser 22 are respectively fixed through the refrigeration cavity 131 and are connected in series through pipelines, nitrogen source storage is carried out through the reservoir 24, liquid nitrogen is controlled through the expansion valve 25, the liquid nitrogen is evaporated and absorbed in the evaporation chamber of the evaporator 23 and becomes gaseous state, heat exchange is carried out through the heat exchange plate 35, the temperature of the heat exchange plate 35 is reduced, the evaporated gaseous nitrogen is compressed through the compressor 21, the compressed nitrogen source is cooled through the condenser 22, the cooled liquid nitrogen source is input into the reservoir 24 again through the pipelines for cyclic utilization, the heat exchange cavity 321 is separated through a partition plate, the heat exchange cavity 321 is changed into two cavities, a spiral pipe 31 is arranged in each cavity, air is refrigerated through the two spiral pipes 31, the heat exchange cavity 32 supports the mounting seat 331 through a fixing groove 322, the rotating shaft 332 rotates around the axis in the rotating shaft groove 3312, the rotating paddle 333 is driven to rotate by the rotation of the rotating shaft 332, the inclined surface of the rotating paddle 333, the bottom side of the rotating cavity 3311 and the transmission surface form a chamber by the inclined arrangement of the rotating paddle 333, the gas is compressed as the rotating paddle 333 rotates, the jacking block 334 is driven to move downwards by the transmission surface, so that the compressed gas flows out through the gas guide groove 3341, when the jacking block 334 moves downwards to the gas guide groove 3341 to be communicated with the gas outlet of the jacking groove 3313, the compressed gas flows out, the jacking block 334 moves downwards to compress the return spring, when the jacking block 334 moves downwards to the lowest end, the rotating paddle 333 passes through the upper end of the jacking block 334, and then the jacking block 334 moves upwards under the action of the return spring 335 to perform the next gas compression.
As shown in fig. 5, the gas collecting assembly 33 further includes a transmission gear 336, the transmission gear 336 is sleeved on the rotating shaft 332, two motor slots 323 are arranged on the heat exchange chamber 32, the power device 4 includes a servo motor 41, the servo motor 41 is arranged in the motor slots 323, an output end of the servo motor 41 is provided with an input gear 42, the motor slots 323 are communicated with the rotating shaft slot 3312, the input gear 42 is meshed with a tooth surface of the transmission gear 336, the rotating shaft 332 extends downwards to be provided with a spiral pipe 31, a pitch of the spiral pipe 31 is gradually increased from top to bottom, the upper end of the spiral pipe 31 is provided with a plurality of gas inlets along the circumferential direction, and the gas inlets are communicated with a gas outlet at the lower section of the jacking slot 3313.
The servo motor 41 is fixed through the motor groove 323, the servo motor 41 transmits through the input gear 42 to drive the transmission gear 336 to rotate, the rotating shaft 332 is driven to rotate through the transmission gear 336, the rotating shaft 332 is supported to rotate through the transmission gear 336, the supporting performance is improved, the compressed gas enters the spiral pipe 31 through the gas outlet at the lower section of the jacking groove 3313, the high-temperature ends of the spiral pipe 31 and the heat exchange plate 35 are positioned in the heat exchange cavity 321, the gas flow in the spiral pipe 31 is subjected to heat exchange and refrigeration through the heat exchange plate 35, the refrigerated gas is discharged through the outlet at the lower end of the spiral pipe 31, the gas outlet is discharged obliquely and downwards through the gradual pitch arrangement, the spiral pipe 31 generates a cold gas flow layer with a downward cone angle along with the rotation of the spiral pipe 31, the flow of the cooled and compressed gas in unit time is gradually increased along with the increase of the rotating speed of the servo motor 41 and is driven through the two servo motors 41 alone, through adjusting the difference in rotational speed, form two different cold gas layers to form two freezing regions that the temperature is different, thereby adjust the temperature of different freezing demands, carry out high low temperature and distinguish, reduce the dispersion degree through air conditioning local circulation, make and carry thing chamber 111 and divide into cold-stored district and freezing district, improve cold chain transportation quality.
As shown in fig. 1, 6 and 7, the power device 4 further includes an induced draft fan 43 and an induced draft tube 44, an outer frame of the induced draft fan 43 is fastened and connected with an inner wall of the loading chamber 111, a lower end of the induced draft tube 44 is located on a lower wall surface of the loading chamber 111, a lower end of the induced draft tube 44 faces a bottom surface of the loading chamber 111 on a lower side of the spiral tube 31, the flow distribution device 5 includes a distribution base 51, a distribution paddle 53, a transmission airbag 55 and a compaction slider 56, one side of the distribution base 51 is fastened and connected with the wall surface of the loading chamber 111, the distribution base 51 is provided with a first branch air passage 512 and a second branch air passage 513, a junction inlet is arranged at a junction of bottom ends of the first branch air passage 512 and the second branch air passage 513, an upper end of the induced draft tube 44 is communicated with the junction inlet, an upper end of the first branch air passage 512 is communicated with an air inlet end of the induced draft fan 43, the distribution base 51 is provided with an induced air passage 511, one side of the induced air passage 511 and one side of the second branch air passage 513 are respectively provided with paddle grooves 514, the two paddle grooves 514 are respectively communicated with the induced air passage 511 and the second branch air passage 513, the distribution paddle 53 is arranged in the paddle groove 514, the upper ends of the two distribution paddles 53 are respectively inserted into the air guide channel 511 and the second branch air channel 513, a transmission groove 515 is arranged between the two paddle grooves 514, the transmission shaft 54 is arranged in the transmission groove 515, the two ends of the transmission shaft 54 are respectively in transmission connection with the distribution paddle 53, one side of the transmission groove 515 is provided with a mounting groove 516, the mounting groove 516 is communicated with the transmission groove 515, the compaction sliding block 56 is arranged in the mounting groove 516, the compaction sliding block 56 is in sliding connection with the mounting groove 516, the transmission air bag 55 is arranged on one side of the compaction sliding block 56, which is far away from the transmission groove 515, the side of the transmission air bag 55, which is far away from the compaction sliding block 56, is connected with the wall surface of the mounting groove 516, and one end of the compaction sliding block 56, which is far away from the transmission air bag 55, is in friction connection with the outer circular surface of the transmission shaft 54.
When goods are filled in the loading cavity 111, the spiral pipe 31 rotates to form a downward cold air film which is dispersed downwards under the action of gravity and spiral force, so that the freezing effect is ensured, cold air at the lower end of the spiral pipe 31 is collected through the induced draft pipe 44, the phenomenon that the cooling temperature at the bottom is too low is avoided, the uneven cooling temperature is caused, the cooling effect is improved through internal circulation, cold air is divided through the flow distribution device 5, the phenomenon that the cold air is too low in temperature and flows into a cold storage area to cause freezing loss is avoided, the distribution base 51 is fixed through the wall surface of the loading cavity 111, cold air flow enters from the intersection inlet through air suction of the induced draft fan 43, a part of cold air enters the induced draft fan 43 from the first branch air passage 512, accelerated ejection is realized through the induced draft fan 43 to form jet flow, part of ejected air flow flows to the box door 12 along the upper wall surface, and the air flow flows along with the increase of the air supply speed when flowing along the wall surface, the flow field flows close to the wall surface, the jet flow radiation area is prolonged, the refrigeration uniformity is improved, the refrigeration effect of a refrigeration area is improved, part of cold air is divided through the air guide channel 511, the cold air in the refrigeration area is prevented from being conveyed too much to cause frostbite, the transmission channel 515 supports the transmission shaft 54, the transmission shaft 54 is in transmission with the distribution paddles 53 on two sides, the air flow sprayed out fast in the air guide channel 511 impacts to drive the distribution paddles 53 to rotate, the distribution paddles 53 on one side of the air guide channel 511 rotate to drive the distribution paddles 53 on one side of the second branch air channel 513, the distribution paddles 53 on the side of the second branch air channel 513 rotate to drive the second branch air channel 513 to exhaust air and output through an outlet, the pressing force of the compaction sliding block 56 and the transmission shaft 54 is ensured through the transmission air bag 55, when the temperature of the transmission air is too low, the interior of the transmission air bag 55 is subjected to cold compression, the compaction sliding block 56 and the transmission shaft 54 reduce the pressing force, thereby making frictional force reduce, making the distribution oar 53 rotational speed of second branch air flue 513 side accelerate to improve exhaust efficiency, change the cold air distribution ratio, make the cold air flow through first branch air flue 512 reduce, thereby avoid cold-stored regional temperature to hang down excessively.
Preferably, the air outlet of the induced draft fan 43 is communicated with the air guide passage 511 through an air duct, the end of the air guide passage 511 far away from the induced draft fan 43 and the upper end of the second branch air passage 513 are provided with air ducts 52, and the tail ends of the air ducts 52 are communicated with the air flow inlet on the upper side of the rotary cavity 3311. Partial cold air discharged by the induced draft fan 43 is communicated with the air guide channel 511 through an air pipe and converged with gas discharged from the tail end of the second branch air channel 513, and is discharged to the rotary cavity 3311 through the air guide pipe 52, so that the circulation effect of the internal cold air is improved, and the loss is reduced.
As optimization, the air outlet of the induced draft fan 43 is provided with a refrigeration pipe, the refrigeration pipe and the upper wall surface of the carrying cavity 111 are arranged in parallel, the box body 11 is provided with a return channel 112, the outlet of the return channel 112 is connected with the air inlet end of the induced draft fan 43, the return channel 112 is provided with a plurality of inlets, and the return channel 112 is communicated with the carrying cavity 111 through the inlets. Some air conditioning of draught fan 43 passes through the tuber pipe discharge, and another part air conditioning passes through the cold-stored bank of tubes discharge, and return duct 112 is carrying thing chamber 111 upside, through import and carrying thing chamber 111 intercommunication, makes the inside negative pressure that produces of return duct 112 through draught fan 43 to make draught fan 43 spun gas receive ascending heeling power, thereby improve efflux air conditioning's coverage.
Preferably, the contact end of the compacting slider 56 and the transmission shaft 54 is arc-shaped. The contact area is increased through the arc-shaped arrangement, so that the friction effect is improved.
As an optimization, the upper end of the rotating paddle 333 is firstly contacted with the upper end of the driving surface by the driving surface and the vertical plane inclination angle being smaller than the rotating paddle 333 and the vertical plane inclination angle, thereby improving the driving effect.
As optimization, the pipe diameter of the spiral pipe 31 is gradually increased from top to bottom, the temperature of the upper end of the spiral pipe 31 is high, the temperature of the lower end of the spiral pipe 31 is low, and the influence of freezing on the gas transmission efficiency of the lower end is avoided.
The working principle of the invention is as follows: compressed gas is introduced into the spiral pipe 31 through a gas outlet at the lower section of the jacking groove 3313, refrigerated gas is discharged through an outlet at the lower end of the spiral pipe 31, so that the gas at the outlet is discharged obliquely downwards, the spiral pipe 31 generates a cold gas flow layer with a downward cone angle along with the rotation of the spiral pipe 31, the flow of the cooled and compressed gas in unit time is gradually increased along with the increase of the rotating speed of the servo motor 41, the two servo motors 41 are independently driven, and two different cold gas layers are formed by adjusting the rotating speed difference, so that two freezing areas with different temperatures are formed, and high and low temperature differentiation is performed; the dispersion degree is reduced through the local circulation of cold air, so that the loading cavity 111 is divided into a cold storage area and a freezing area, and is isolated through an airflow layer to avoid physical isolation; cold air flow enters from the intersection inlet by air suction of the draught fan 43 and is accelerated to be sprayed out by the draught fan 43 to form jet flow, and when part of sprayed air flow flows along the upper wall surface of the loading cavity 111, the flow field flows close to the wall surface along with increase of air supply speed, so that the jet flow radiation area is prolonged; part of cold air is divided through the air guide channel 511, when the temperature of the transmitted air is too low, the interior of the transmission air bag 55 is cooled and compressed, the compaction sliding block 56 and the transmission shaft 54 reduce the pressing force, so that the friction force is reduced, the rotating speed of the distribution paddle 53 at the side of the second branch air channel 513 is increased, the exhaust efficiency is improved, the cold air distribution ratio is changed, and the flow of the cold air passing through the first branch air channel 512 is reduced; through spiral pipe 31 pipe diameter from the top down crescent, spiral pipe 31 upper end temperature is high, and the lower extreme temperature is low, avoids the lower extreme to be frozen and influences gas transmission efficiency.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a food level cold chain conveyer with double helix frozen machine which characterized in that: the food-grade cold chain conveying device comprises a fixing device (1), a refrigerating device (2), a heat exchange device (3), a power device (4) and a flow distribution device (5), wherein the fixing device (1) is fixedly connected with the refrigerating device (2), the heat exchange device (3) is connected with the fixing device (1), the heat exchange device (3) is connected with the refrigerating device (2), the power device (4) is fixedly connected with the fixing device (1), the flow distribution device (5) is fixedly connected with the fixing device (1), the power device (4) is communicated with the flow distribution device (5), the flow distribution device (5) is communicated with the heat exchange device (3), the fixing device (1) comprises a box body (11), a box door (12) and a fixing seat (13), a carrying cavity (111) is arranged on the box body (11), and an opening is formed in one side of the carrying cavity (111), the refrigerator door (12) is rotatably connected with an opening of the refrigerator body (11), one side of the fixed seat (13) is fixedly connected with the inner wall of the loading cavity (111), the fixed seat (13) is provided with a refrigerating cavity (131), the refrigerating device (2) is arranged in the refrigerating cavity (131), the heat exchange device (3) comprises a heat exchange chamber (32) and a heat exchange plate (35), one side of the heat exchange chamber (32) is fixedly connected with the fixed seat (13), the heat exchange chamber (321) is arranged on the heat exchange chamber (32), through holes are respectively formed in the connection position of the heat exchange chamber (32) and the fixed seat (13), one end of the heat exchange plate (35) penetrates through the through holes, and two ends of the heat exchange plate (35) are respectively communicated with the refrigerating device (2) and the heat exchange chamber (321);
refrigerating plant (2) and refrigeration chamber (131) inner wall fastening connection, refrigerating plant (2) include compressor (21), condenser (22), evaporimeter (23), reservoir (24) and expansion valve (25), reservoir (24), expansion valve (25), evaporimeter (23), compressor (21) and condenser (22) are established ties in proper order through the pipeline, condenser (22) exit end passes through pipeline and reservoir (24) intercommunication, it is indoor that evaporimeter (23) evaporation is inserted to heat exchanger fin (35) one end, heat transfer device (3) still include the baffle, baffle and heat transfer chamber (321) fastening connection, heat transfer chamber (321) are separated into two cavities by the baffle, be equipped with two fixed slots (322) on heat transfer chamber (32), be equipped with gas collection subassembly (33) in fixed slot (322), gas collection subassembly (33) include mount pad (331), Pivot (332) and jacking piece (334), be equipped with pivot groove (3312) on mount pad (331), pivot (332) and pivot groove (3312) rotate to be connected, pivot groove (3312) upside is equipped with gyration chamber (3311), in pivot (332) upper end inserts gyration chamber (3311), be equipped with a plurality of commentaries on classics oar (333) on pivot (332), commentaries on classics oar (333) slope is arranged, commentaries on classics oar (333) and gyration chamber (3311) wall sliding connection, gyration chamber (3311) upside is equipped with a plurality of air inlets, air inlet and gyration chamber (3311) intercommunication, be equipped with a plurality of jacking grooves (3313) on mount pad (331), jacking piece (334) and jacking groove (3313) sliding connection, be equipped with jacking reset spring (335) in transmission groove (3313), reset spring (335) upper end and jacking piece (334) fastening connection, jacking piece (334) upside is equipped with the face, the transmission surface is obliquely arranged, an air guide groove (3341) is formed in the jacking block (334), the upper end of the air guide groove (3341) is communicated with the rotation cavity (3311), an air outlet is formed in the lower section of the side wall of the jacking groove (3313), and the air outlet of the air guide groove (3341) is intermittently communicated with the air outlet of the jacking groove (3313);
the gas collection assembly (33) further comprises a transmission gear (336), the transmission gear (336) is sleeved on the rotating shaft (332), two motor grooves (323) are arranged on the heat exchange chamber (32), the power device (4) comprises a servo motor (41), the servo motor (41) is arranged in the motor groove (323), an input gear (42) is arranged at the output end of the servo motor (41), the motor groove (323) is communicated with the rotating shaft groove (3312), the input gear (42) is meshed with the tooth surface of the transmission gear (336), the rotating shaft (332) extends downwards to form a spiral pipe (31), the pitch of the spiral pipe (31) is gradually increased from top to bottom, a plurality of airflow inlets are arranged at the upper end of the spiral pipe (31) along the circumferential direction, a plurality of through holes are arranged on the transmission gear (336), the air flow inlet is communicated with an air outlet at the lower section of the jacking groove (3313) through a through hole of the transmission gear (336);
the power device (4) further comprises an induced draft fan (43) and an induced draft pipe (44), the outer frame of the induced draft fan (43) is fixedly connected with the inner wall of the carrying cavity (111), the lower end of the induced draft pipe (44) is positioned on the lower wall surface of the carrying cavity (111), the lower end of the induced draft pipe (44) faces the bottom surface of the carrying cavity (111) on the lower side of the spiral pipe (31), the flow distribution device (5) comprises a distribution seat (51), a distribution paddle (53), a transmission air bag (55) and a compaction sliding block (56), one side of the distribution seat (51) is fixedly connected with the wall surface of the carrying cavity (111), a first branch air passage (512) and a second branch air passage (513) are arranged on the distribution seat (51), an intersection inlet is arranged at the bottom end of the first branch air passage (512) and the bottom end of the second branch air passage (513), the upper end of the induced draft pipe (44) is communicated with the intersection inlet, the upper end of the first branch air passage (512) is communicated with the air inlet end of the induced draft fan (43), the distribution base (51) is provided with an air guide channel (511), one side of the air guide channel (511) and one side of a second branch air channel (513) are respectively provided with a paddle groove (514), the two paddle grooves (514) are respectively communicated with the air guide channel (511) and the second branch air channel (513), a distribution paddle (53) is arranged in the paddle groove (514), the upper end of the distribution paddle (53) is respectively inserted into the air guide channel (511) and the second branch air channel (513), a transmission groove (515) is arranged between the two paddle grooves (514), a transmission shaft (54) is arranged in the transmission groove (515), two ends of the transmission shaft (54) are respectively in transmission connection with the distribution paddle (53), one side of the transmission groove (515) is provided with a mounting groove (516), the mounting groove (516) is communicated with the transmission groove (515), a compaction sliding block (56) is arranged in the mounting groove (516), and the compaction sliding block (56) is in sliding connection with the mounting groove (516), a transmission air bag (55) is arranged on one side, away from the transmission groove (515), of the compaction sliding block (56), one side, away from the compaction sliding block (56), of the transmission air bag (55) is connected with the wall surface of the installation groove (516), and one end, away from the transmission air bag (55), of the compaction sliding block (56) is in friction connection with the outer circular surface of the transmission shaft (54);
the air outlet of the induced draft fan (43) is communicated with the air guide channel (511) through an air pipe, one end, far away from the induced draft fan (43), of the air guide channel (511) and the upper end of the second branch air channel (513) are provided with an air guide pipe (52), and the tail end of the air guide pipe (52) is communicated with an air flow inlet on the upper side of the rotary cavity (3311);
draught fan (43) air outlet still is equipped with the refrigeration pipe, wall parallel arrangement is gone up with year thing chamber (111) to the refrigeration pipe, be equipped with return flow channel (112) on box (11), return flow channel (112) export and draught fan (43) inlet end are connected, are equipped with a plurality of imports on return flow channel (112), and return flow channel (112) are through import and carry thing chamber (111) intercommunication.
2. A food grade cold chain conveyor with twin screw frozen machine according to claim 1, characterized in that: the contact end of the compaction sliding block (56) and the transmission shaft (54) is arc-shaped.
3. A food grade cold chain conveyor with twin screw frozen machine according to claim 1, characterized in that: the inclination angles of the transmission surface and the vertical plane are smaller than the inclination angles of the rotary paddle (333) and the vertical plane.
4. A food grade cold chain conveyor with twin screw frozen machine according to claim 1, characterized in that: the pipe diameter of the spiral pipe (31) is gradually increased from top to bottom.
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| CN208567253U (en) * | 2018-07-24 | 2019-03-01 | 华东交通大学 | A kind of freezing-cooling storeroom air-cooler device based on the multidirectional piping of refrigerant |
| CN208832824U (en) * | 2018-08-17 | 2019-05-07 | 杰欧（江苏）冷链装备有限公司 | A kind of screw fast refreezer pressure balance cabin |
| CN208832820U (en) * | 2018-08-17 | 2019-05-07 | 杰欧（江苏）冷链装备有限公司 | A kind of high-efficiency helical instant freezer |
| CN208832825U (en) * | 2018-08-17 | 2019-05-07 | 杰欧（江苏）冷链装备有限公司 | A kind of efficient supply air system of screw fast refreezer |
| CN110668027A (en) * | 2019-10-17 | 2020-01-10 | 浙江雪波蓝科技有限公司 | Unit refrigeration delivery box |
| CN210941997U (en) * | 2019-10-21 | 2020-07-07 | 安徽智锐汽车有限公司 | Freezing car carriage of subregion |
| CN211765170U (en) * | 2019-12-18 | 2020-10-27 | 山东汉诺汽车有限公司 | Cold chain transport vehicle |
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|---|---|
| CN113446780A (en) | 2021-09-28 |
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