CN106183956A - Vehicle-mounted liquid nitrogen spraying refrigerating system - Google Patents

Vehicle-mounted liquid nitrogen spraying refrigerating system Download PDF

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Publication number
CN106183956A
CN106183956A CN201610739609.XA CN201610739609A CN106183956A CN 106183956 A CN106183956 A CN 106183956A CN 201610739609 A CN201610739609 A CN 201610739609A CN 106183956 A CN106183956 A CN 106183956A
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CN
China
Prior art keywords
liquid nitrogen
compartment
vehicle
refrigerating system
shower
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610739609.XA
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Chinese (zh)
Inventor
白江坤
范晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Olympic New Energy Polytron Technologies Inc
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Shandong Olympic New Energy Polytron Technologies Inc
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Priority to CN201610739609.XA priority Critical patent/CN106183956A/en
Publication of CN106183956A publication Critical patent/CN106183956A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/20Refrigerated goods vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/105Movable containers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention discloses a kind of vehicle-mounted liquid nitrogen spraying refrigerating system, including compartment and liquid nitrogen storage tank, described interior is provided with liquid nitrogen atomizing spray mechanism, described liquid nitrogen atomizing spray mechanism by pipeline connect described in liquid nitrogen storage tank, described interior is additionally provided with human body sensing mechanism, and described human body sensing mechanism is connected to single-chip microcomputer.It is an advantage of the current invention that car top is provided with the liquid nitrogen atomizing spray pipeline being connected with liquid nitrogen storage tank, it is ensured that liquid nitrogen is fully atomized heat absorption becomes nitrogen, it is to avoid liquid nitrogen drips, on product, causes product cold injury;It is provided with personnel identification device in compartment, it is ensured that in the case of unmanned, carry out atomizing spray, effectively stops the personnel casualty accidents caused because of maloperation.

Description

Vehicle-mounted liquid nitrogen spraying refrigerating system
Technical field
The present invention relates to refrigerated van type car field, especially relate to a kind of vehicle-mounted liquid nitrogen spraying refrigerating system.
Background technology
Refrigerator car according to refrigeration modes be broadly divided into mechanical refrigeration, dry ice refrigeration, water-ice salt ice refrigeration, hold-over plate refrigeration, 5 kinds of modes of liquid nitrogen refrigerating.For now, mechanically refrigerated refrigerator car is in occupation of main refrigerator car market, and they are applied Numerous occasions, have homogeneous temperature, a simple operation and other advantages, but it there is also that structure is complicated, easily break down, maintenance cost High and rate of cooling slowly, not energy-conserving and environment-protective, the problem such as the most subzero 30 DEG C of cryogenic temperature.
Select different refrigeration systems, refrigerator car transport is of great practical significance.Both ensure that low temperature The normal need of transport, turn avoid " low load with strong power ", the phenomenon of energy dissipation, meets " energy-saving and emission-reduction, sustainable development " Requirements of the times.For low-temperature transport distance length, the practical situation of quantity of goods kind, quantity and temp, Purpose is had to have the refrigerator car selecting appropriate refrigeration ability of planning, it is possible to alleviate the low-temperature transport pressure that current energy consumption is high, benefit is low Power.
Liquid nitrogen is a kind of colourless, tasteless, non-corrosiveness, low viscous transparency liquid, stable chemical nature.Its gasification latent heat For 5.56kJ/mol, heat can be absorbed in a large number when it gasifies, be a kind of preferably cold-producing medium.With liquid nitrogen for cold preservation medium Refrigerator car has simple in construction, reliable, cooling rate is fast, the advantage such as uniformity of temperature profile, environmental protection in compartment, deep by masses Like.Its liquid nitrogen spraying technology and liquid nitrogen freezing performance are mainly launched research by Chinese scholar at present, extensively apply for it and establish Fixed basis.
Application No. 201510438194.8, publication date 2015.10.21, title: " a kind of jacket type liquid nitrogen spraying cold preservation Railway carriage or compartment " the open a kind of liquid nitrogen spraying refrigerating carriage of Chinese invention patent application, have employed liquid nitrogen is refrigerant, but still exists There is leak in certain problem, particularly personnel safety and automatic monitoring aspect.
Summary of the invention
The present invention is to solve above-mentioned technical problem, it is provided that a kind of, it is possible to solve.
To achieve these goals, the present invention adopts the following technical scheme that a kind of vehicle-mounted liquid nitrogen spraying refrigerating system, including Compartment and liquid nitrogen storage tank, described interior is provided with liquid nitrogen atomizing spray mechanism, and described liquid nitrogen atomizing spray mechanism leads to Crossing the liquid nitrogen storage tank described in pipeline connection, described interior is additionally provided with human body sensing mechanism, described human body sensing machine Structure is connected to single-chip microcomputer.The situation having people in compartment can not be freezed, and improves personal security coefficient.
Preferably, described human body sensing mechanism is image capture instrument.
Preferably, described compartment is provided with railway carriage or compartment door inductive switch.Ensure to spray in the case of car door is closed Refrigeration.
Preferably, described liquid nitrogen storage tank is arranged on the either side of the bottom in described compartment.Save vehicle body space, make Obtain car load the compactest attractive in appearance.
Preferably, also including control valve group and the Internet+control system, described the Internet+control system can be to spray In number of times, vehicle driving trace and position, railway carriage or compartment, in temperature variation curve, storage tank, the information such as liquid nitrogen storage is monitored and remotely passes Defeated.
Preferably, in described compartment, it is provided with pressure transducer, temperature sensor and oxygen concentration sensor, described Pressure transducer, temperature sensor and oxygen concentration sensor are connected to described single-chip microcomputer.Ensure pressure in railway carriage or compartment, temperature and Oxygen concentration is in claimed range.
Preferably, described control valve group includes relief valve, the emergency manual stop valve being arranged on liquid nitrogen main line, institute The liquid nitrogen main line stated connects the first branch road and the second branch road, and the first described branch road and the second branch road are respectively arranged with first Electromagnetic valve and the second electromagnetic valve.
Preferably, described liquid nitrogen atomizing spray mechanism includes being arranged on the first shower and second spray on top in compartment Pipe, the first described shower and the second shower are provided with several atomizers.
Further, the first described shower and the second shower are parallel, two pushed up in being separately positioned on described compartment Side, several described atomizers are uniformly distributed along the length direction of the first described shower and the second shower, described The spray direction of atomizer be all obliquely installed, towards the central space in compartment.
Preferably, described pipeline cladding water pipe insulation material, at the connection gap in described pipeline and described compartment Foaming agent is all used to fill.
It is an advantage of the current invention that car top is provided with the liquid nitrogen atomizing spray pipeline being connected with liquid nitrogen storage tank, it is ensured that liquid Nitrogen is fully atomized heat absorption becomes nitrogen, it is to avoid liquid nitrogen drips, on product, causes product cold injury;Personnel it are provided with in compartment Identify device, it is ensured that in the case of unmanned, carry out atomizing spray.Stop the personnel casualty accidents caused because of maloperation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the left back lateral plan of Fig. 1;
Fig. 3 is control valve group structural representation;
Fig. 4 is human bioequivalence systematic schematic diagram;
Fig. 5 is the Internet+Control system architecture schematic diagram;
Fig. 6 is the left view of Fig. 5;
Wherein, 1-compartment;11-railway carriage or compartment door;21-liquid nitrogen storage tank;22-pipeline;23-the first shower;24-the second shower; 25-atomizer;3-control valve group;31-main line;32-relief valve;33-emergency manual stop valve;34-threeway;35-first Branch road;36-the second branch road;37-the first electromagnetic valve;38-the second electromagnetic valve;4-the Internet+control system;41-power inverter; 42-controls switch;43-relay;44-single-chip microcomputer;45-signal projector;46-wire press box;47-touch screen;48-touch screen supplies Electric line;49-system power supply circuit;51-pressure transducer;52-railway carriage or compartment door inductive switch;53-breather valve;54-temperature sensor; 55-oxygen concentration sensor;61-figure Acquisition Instrument;62-human face;63-human hands;64-human foot.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
A kind of vehicle-mounted liquid nitrogen spraying refrigerating system, including compartment 1 and liquid nitrogen storage tank 21, described car Railway carriage or compartment 1 is internally provided with liquid nitrogen atomizing spray mechanism, and described liquid nitrogen atomizing spray mechanism connects described liquid nitrogen by pipeline 22 Storage tank 21, liquid nitrogen atomizing spray mechanism includes being arranged on first shower 23 and second shower 24 on top in compartment 1, described It is provided with several atomizers 25 on first shower 23 and the second shower 24.
The first described shower 23 is parallel with the second shower 24, the both sides pushed up in being separately positioned on described compartment 1, institute Several atomizers 25 stated are uniformly distributed along the length direction of the first described shower 23 and the second shower 24, described The spray direction of atomizer 25 all tilt the central space towards compartment 1.Atomizer 25 selects Radix Rumicis atomizer to imitate Fruit is optimal, and described compartment is provided with railway carriage or compartment door inductive switch 52 and is connected to single-chip microcomputer 44, it is ensured that in the case of railway carriage or compartment door 11 is closed Carry out spray refrigeration.Described compartment 1 is internal is additionally provided with human body sensing mechanism, and described human body sensing mechanism is connected to monolithic Machine 44.The situation having people in compartment 1 can not be freezed, and improves personal security coefficient.Described liquid nitrogen storage tank 21 is arranged on institute The either side of the bottom in the compartment 1 stated.Save vehicle body space so that car load is the compactest attractive in appearance.Fig. 1 is the most intuitively Understanding, draw after being overturn by liquid nitrogen storage tank 21, the practical situation in reality is that liquid nitrogen storage tank 21 hangs the end being arranged on compartment 1 Portion.Pressure transducer 51, temperature sensor 54 and oxygen concentration sensor 55, described pressure it is provided with in described compartment 1 Sensor 51, temperature sensor 54 and oxygen concentration sensor 55 are connected to described single-chip microcomputer 44 (shown in Fig. 5).Ensure railway carriage or compartment Interior pressure, temperature and oxygen concentration are in claimed range.
As shown in Figure 4, described human body sensing mechanism is image capture instrument 61, and image capture instrument 61 can monitor compartment 1 Whole spaces, its operation principle is, image capture instrument 61 railway carriage or compartment door 11 close after start image acquisition work and image split Location, carries out human body analysis through single-chip microcomputer 44 by the image collected, and identifies including human face 62, human hands 63 identifies Identify with human foot 64.After single-chip microcomputer 44 is analyzed, if there is not characteristics of human body in compartment 1, refrigeration work assigned by single-chip microcomputer Instruct, otherwise do not freeze.
As in figure 2 it is shown, also include control valve group 3 and the Internet+control system 4, described the Internet+control system 4 can The information such as liquid nitrogen storage in temperature variation curve, storage tank in spray number of times, vehicle driving trace and position, railway carriage or compartment are monitored and Remote transmission.
As it is shown on figure 3, described control valve group 3 includes relief valve 32, the emergency manual being arranged on liquid nitrogen main line 31 Stop valve 33, described liquid nitrogen main line 31 connects the first branch road 35 and the second branch road 36, described first by threeway 34 The first electromagnetic valve 37 and the second electromagnetic valve 38 it is respectively arranged with on road 35 and the second branch road 36.
As shown in Figure 5 and Figure 6, the Internet+control system 4 includes following critical piece: power inverter 41, control switch 42, relay 43, single-chip microcomputer 44 and signal projector 45 are integrated by wire press box 46, and touch screen 47 is arranged on individually Side, is powered by touch screen supply line 48, and whole the Internet+control system 4 is by system power supply circuit 49 and vehicle mounted electric Source connects power supply.Electromagnetic valve connects relay, and after setting the parameter such as temperature and oxygen content in touch screen 47, single-chip microcomputer is by root It is controlled electromagnetic valve switch according to the data of sensor transmissions, and synchronous recording railway carriage or compartment intrinsic parameter changes and draws variations in temperature song Line, record stroke change, and synchronized transmissions signal.Driver can check the Parameters variation such as temperature and oxygen content in railway carriage or compartment intuitively. Goods reciever can be downloaded after the Parameters variation in mobile phone A PP synchronous detecting goods transportation or goods arrive by connecting number Railway carriage or compartment intrinsic parameter change is checked according to line.
Described pipeline cladding water pipe insulation material, all uses at the connection gap in described pipeline and described compartment and sends out Infusion is filled.
Atomization parameter: liquid nitrogen storage tank injection economic pressures are 0.8Mpa, and gas cylinder supercharging sets pressure and adds prolongation as 1Mpa And absorbing the liquid nitrogen conveyance conduit of heat always, it is ensured that the liquid nitrogen granule that becomes more meticulous for gas-liquid mixture phase of ejection;Radix Rumicis Formula finer atomization joint, angle design is 45-65 °, installs by product mounting means.Can ensure liquid injection time, liquid Nitrogen granule is to separate with atomization joint, does not results in particle aggregation and forms drop.Atomization joint flow is 0.08L/min. Atomizing particle is little, and flow is little, it is ensured that eject rear Quick-gasifying.
The Internet+control system principle: system is mounted with wireless communication module, by the Mobile phone card inserted or In-vehicle networking With external transmission information;Single-chip microcomputer collects the temperature in calculating compartment, vehicle operation data, liquid nitrogen spraying data, liquid nitrogen storage tank The reserves data of interior liquid nitrogen, and related data result is stored in data memory module, synchronize externally to send, the hands that user is long-range Machine APP client can real-time reception related data.
Use process brief introduction: having loaded and unloaded after goods the situation without personnel in ensureing closing of the door and railway carriage or compartment, driver is carried out Parameter arranges and includes temperature, pressure etc., opens supercharging and goes out liquid stop valve, and open the cut-off in control valve group after being provided with Valve;After vehicle launch, the Internet+control system will receive work order, according to driver to parameters such as temperature after program starts Facilities will open the first and second electromagnetic valves, to carrying out atomizing spray liquid nitrogen in railway carriage or compartment, along with in railway carriage or compartment the reduction of temperature and The rising of pressure, stops spray after reaching setting value, and period raises such as the pressure in pipeline, and relief valve will carry out safety relief Pressure in pipeline.After temperature in railway carriage or compartment occurs rising the upper limit reaching to set, it is again turned on circulation.Extinguish after arriving at the destination After vehicle, control system closedown electromagnetic valve stop liquid is passed through, and then operator close the stop valve obstructed liquid of guarantee.Wait to set Oxygen concentration meet setting value after just can open railway carriage or compartment door carry out load and unload goods.
Single-chip computer control system technology is technology contents well known to those of ordinary skill in the art, and here is omitted.
The low temperature liquid nitrogen atomizing spray refrigerating system of the present invention, by liquid nitrogen atomizing spray to refrigerating carriage body, it is achieved envelope Interior temperature reduces rapidly and can ensure lowering temperature uniform.Be suitable for room temperature to the fruit and vegerable of-60 DEG C of deepfreezes, herding meat, birds, Fish cold preservation.
The Internet+set-up of control system in above-described embodiment is on front side of the outside in compartment, naturally it is also possible to arrange embedding In control station or other positions of vehicle body of cabin interior, can be determined on a case-by-case basis, all can reach similar technology Effect.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model The restriction enclosed, for the technology contents that some are well known to those of ordinary skill in the art, here is omitted, art technology Personnel should be understood that on the basis of technical scheme, and those skilled in the art need not pay creative work i.e. The various amendments that can make or deformation are still within protection scope of the present invention.

Claims (10)

  1. The most vehicle-mounted liquid nitrogen spraying refrigerating system, including compartment and liquid nitrogen storage tank, described interior is provided with liquid nitrogen atomization spray Drench mechanism, described liquid nitrogen atomizing spray mechanism by pipeline connect described in liquid nitrogen storage tank, it is characterised in that described compartment Inside is additionally provided with human body sensing mechanism, and described human body sensing mechanism is connected to single-chip microcomputer.
  2. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 1, it is characterised in that described human body sensing mechanism is Image capture instrument.
  3. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 1, it is characterised in that described compartment is provided with railway carriage or compartment door Inductive switch.
  4. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 1, it is characterised in that described liquid nitrogen storage tank is arranged on The either side of the bottom in described compartment.
  5. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 1, it is characterised in that also include control valve group and interconnection Net+control system, described the Internet+control system can be to variations in temperature in spray number of times, vehicle driving trace and position, railway carriage or compartment In curve, storage tank, the information such as liquid nitrogen storage is monitored and remote transmission.
  6. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 1, it is characterised in that be provided with pressure in described compartment Force transducer, temperature sensor and oxygen concentration sensor, described pressure transducer, temperature sensor and oxygen concentration sensing Device is connected to described single-chip microcomputer.
  7. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 5, it is characterised in that described control valve group includes setting Putting the relief valve on liquid nitrogen main line, emergency manual stop valve, described liquid nitrogen main line connects the first branch road and second Road, the first described branch road and the second branch road are respectively arranged with the first electromagnetic valve and the second electromagnetic valve.
  8. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 1, it is characterised in that described liquid nitrogen atomizing spray machine Structure includes being arranged on the first shower and second shower on top in compartment, on the first described shower and the second shower all It is provided with several atomizers.
  9. Vehicle-mounted liquid nitrogen spraying refrigerating system the most according to claim 8, it is characterised in that the first described shower and Two showers are parallel, the both sides pushed up in being separately positioned on described compartment, and several described atomizers are along the first described spray The length direction of shower pipe and the second shower is uniformly distributed, and the spray direction of described atomizer is all obliquely installed, towards car The central space in railway carriage or compartment.
  10. 10. according to the vehicle-mounted liquid nitrogen spraying refrigerating system described in any one of claim 1-9, it is characterised in that described pipeline Cladding water pipe insulation material, described pipeline all uses foaming agent to fill at the connection gap in described compartment.
CN201610739609.XA 2016-08-27 2016-08-27 Vehicle-mounted liquid nitrogen spraying refrigerating system Pending CN106183956A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106855331A (en) * 2017-02-15 2017-06-16 广州鲜之源生态冷链技术有限公司 A kind of vehicular ultralow temperature refrigerant generator
CN107116994A (en) * 2017-04-28 2017-09-01 重庆长安汽车股份有限公司 A kind of interior space fast cooling system and method
CN107696946A (en) * 2017-09-12 2018-02-16 谢斌 A kind of solar energy transport vehicle
CN108162845A (en) * 2018-01-08 2018-06-15 广州聚联物流有限公司 A kind of pure electric vehicle new energy liquid nitrogen storage vehicle
CN108177585A (en) * 2018-01-08 2018-06-19 广州聚联物流有限公司 A kind of liquid nitrogen storage carriage body construction
CN108590460A (en) * 2018-04-23 2018-09-28 航天新长征电动汽车技术有限公司 A kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicle
CN108826740A (en) * 2018-05-14 2018-11-16 航天新长征电动汽车技术有限公司 A kind of spray head, fountain liquid nitrogen refrigerating system and refrigerator car
CN109383358A (en) * 2018-10-15 2019-02-26 吉林工程技术师范学院 A kind of environmental monitoring installation in Cold Chain Logistics transportation service network
CN109405389A (en) * 2017-08-18 2019-03-01 江苏斯诺物联科技有限公司 A kind of Cold Chain Logistics haulage truck temperature control system
CN110901505A (en) * 2019-12-02 2020-03-24 华晨专用车装备科技(大连)有限公司 End type compressed liquid gas refrigerant refrigerating system device
CN110926048A (en) * 2019-12-02 2020-03-27 华晨专用车装备科技(大连)有限公司 Cage type compressed liquid gas refrigerant refrigerating system device
CN111532196A (en) * 2020-05-20 2020-08-14 北京安达维尔航空设备有限公司 Vehicle-mounted gas cylinder frame with auxiliary gas cylinder loading and unloading function
CN112629099A (en) * 2020-12-18 2021-04-09 南京瑞贻电子科技有限公司 Emergency cooling device and method for large cooling system
CN113294953A (en) * 2021-06-11 2021-08-24 四川大学华西医院 Laboratory low temperature cabinet of drawing materials

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CN204956247U (en) * 2015-09-23 2016-01-13 周欢 A cold chain car for transporting ecosystem food
CN205905851U (en) * 2016-08-27 2017-01-25 山东奥扬新能源科技股份有限公司 On -vehicle liquid nitrogen sprays refrigerating system

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US6345509B1 (en) * 2000-01-21 2002-02-12 Ukram Industries Refrigeration of a food transport vehicle utilizing liquid nitrogen
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106855331A (en) * 2017-02-15 2017-06-16 广州鲜之源生态冷链技术有限公司 A kind of vehicular ultralow temperature refrigerant generator
CN107116994A (en) * 2017-04-28 2017-09-01 重庆长安汽车股份有限公司 A kind of interior space fast cooling system and method
CN109405389A (en) * 2017-08-18 2019-03-01 江苏斯诺物联科技有限公司 A kind of Cold Chain Logistics haulage truck temperature control system
CN107696946A (en) * 2017-09-12 2018-02-16 谢斌 A kind of solar energy transport vehicle
CN108177585A (en) * 2018-01-08 2018-06-19 广州聚联物流有限公司 A kind of liquid nitrogen storage carriage body construction
CN108162845A (en) * 2018-01-08 2018-06-15 广州聚联物流有限公司 A kind of pure electric vehicle new energy liquid nitrogen storage vehicle
CN108590460A (en) * 2018-04-23 2018-09-28 航天新长征电动汽车技术有限公司 A kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicle
CN108590460B (en) * 2018-04-23 2019-11-22 航天新长征电动汽车技术有限公司 A kind of safe-guard system, method and liquid nitrogen refrigerated van type vehicle
CN108826740A (en) * 2018-05-14 2018-11-16 航天新长征电动汽车技术有限公司 A kind of spray head, fountain liquid nitrogen refrigerating system and refrigerator car
CN109383358A (en) * 2018-10-15 2019-02-26 吉林工程技术师范学院 A kind of environmental monitoring installation in Cold Chain Logistics transportation service network
CN110901505A (en) * 2019-12-02 2020-03-24 华晨专用车装备科技(大连)有限公司 End type compressed liquid gas refrigerant refrigerating system device
CN110926048A (en) * 2019-12-02 2020-03-27 华晨专用车装备科技(大连)有限公司 Cage type compressed liquid gas refrigerant refrigerating system device
CN111532196A (en) * 2020-05-20 2020-08-14 北京安达维尔航空设备有限公司 Vehicle-mounted gas cylinder frame with auxiliary gas cylinder loading and unloading function
CN111532196B (en) * 2020-05-20 2021-10-15 北京安达维尔航空设备有限公司 Vehicle-mounted gas cylinder frame with auxiliary gas cylinder loading and unloading function
CN112629099A (en) * 2020-12-18 2021-04-09 南京瑞贻电子科技有限公司 Emergency cooling device and method for large cooling system
CN112629099B (en) * 2020-12-18 2022-04-15 南京瑞贻电子科技有限公司 Emergency cooling device and method for large cooling system
CN113294953A (en) * 2021-06-11 2021-08-24 四川大学华西医院 Laboratory low temperature cabinet of drawing materials

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Application publication date: 20161207