CN110228401A - A kind of joint refrigeration cold chain transportation vehicle - Google Patents
A kind of joint refrigeration cold chain transportation vehicle Download PDFInfo
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- CN110228401A CN110228401A CN201910474015.4A CN201910474015A CN110228401A CN 110228401 A CN110228401 A CN 110228401A CN 201910474015 A CN201910474015 A CN 201910474015A CN 110228401 A CN110228401 A CN 110228401A
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- Prior art keywords
- liquid
- lng
- heat exchange
- inert gas
- cold chain
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 135
- 239000011261 inert gas Substances 0.000 claims abstract description 47
- 238000001816 cooling Methods 0.000 claims abstract description 46
- 238000003860 storage Methods 0.000 claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 81
- 229910052757 nitrogen Inorganic materials 0.000 claims description 41
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 15
- 239000001569 carbon dioxide Substances 0.000 claims description 14
- 238000002309 gasification Methods 0.000 claims description 8
- 239000003949 liquefied natural gas Substances 0.000 description 55
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/20—Refrigerated goods vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/04—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains
- B62D33/048—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains for refrigerated goods vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/105—Movable containers
Abstract
The invention belongs to cold chain transportation fields, it discloses a kind of joint refrigeration cold chain transportation vehicles, including using LNG as the vehicle of fuel, the cabinet being arranged on vehicle, also equipped with liquid inert gas storage tank, interior be equipped with using liquid LNG and liquid inert gas of the cabinet is that cold source carries out the heat exchange refrigeration system that heat exchange is freezed to housing interior volume.The cold chain transportation vehicle is by carrying out joint utilization to liquid inert gas and liquid LNG cooling capacity, liquid inert gas flask volume can be reduced, vehicle volume is reduced, improves logistics distance, improves energy utilization rate, avoiding single use liquid inert gas, single use LNG as the refrigeration fluctuation of cold source bring, big, logistics occurs apart from the excessive problem of short, equipment volume.
Description
Technical field
The present invention relates to cold chain transportation field, specially a kind of joint refrigeration cold chain transportation vehicle.
Background technique
Intelligent (Beijing) the science and trade Co., Ltd of applicant Hua Xinglong is in one application for a patent for invention of proposition in 2018
CN201811126598.3 discloses a kind of intelligent multifunctional gas molecule cold chain vehicle, and wall-hanging cold chain vehicle tailstock wall built-up is in wall built-up
On vehicle headstock, container incubator is mounted on the wall-hanging cold chain vehicle tailstock, is pacified between container incubator and wall built-up vehicle headstock
Fill refrigeration source；Condenser units' installation is outside container incubator, and refrigeration source passes through in pipeline connection to container incubator, gas
Molecular equilibrium component is mounted on the outer top of container incubator；Condenser unit is to provide refrigerant in container incubator；System
Environmental gas needed for cold source is the cooling of container incubator, provides storage by way of top spray；Gas molecular equilibrium group
Part balances the various gas molecules in container incubator；Environmental parameter regulatory component regulate and control container incubator in humidity and
The content of required stored gas analysis；Externally input control parameter or utilization are pre- based on the received by artificial intelligent control system
The parameter of the control parameter detection unit detection first stored, issues control instruction, so that container incubator internal environment reaches
Control parameter implements cold storing and fresh-keeping or quick-frozen to its internal material.
The core of the program is: being protected by reaching food materials to all kinds of Gas Molecular Densities of box house and temperature regulation
The processing such as fresh, deep cooling.
Applicant Guangzhou Ju Lian logistics Co., Ltd is in one utility application of proposition in 2016
CN201621221676.4 discloses a kind of refrigerator car liquid nitrogen heat exchange refrigeration system, is set on refrigerator car, including liquid nitrogen container and
Nitrogen feeding pipe, the proximal end of nitrogen feeding pipe and the exhaust outlet of liquid nitrogen container connect, and distally introduce refrigerated vehicle carriage along the top of refrigerated vehicle carriage
Interior, nitrogen feeding pipe distal end blocks, and the proximal end of nitrogen feeding pipe is equipped with control valve, several in being equipped in refrigerated vehicle carriage on the tube wall of nitrogen feeding pipe
Liquid nitrogen spray, the nitrogen feeding pipe use heat-insulated pipe, and the heat-insulated pipe includes inner and outer tubes, forms vacuum clip between inner and outer tubes
Layer, the interior radiation shield that inner and outer tubes tube wall is parallel to equipped with several layers of vacuum interlayer.It uses clean energy resource liquid nitrogen as cold
Matchmaker, it is big to have a refrigerating capacity, and refrigeration is rapidly and efficiently.So that container is the case where the power and energy for not increasing means of transport consumes
Under, realize the fresh-keeping transport of the fresh product of agriculture.
It should be understood that being carried out as cold source to container-type refrigerating box using gases such as liquid nitrogen or liquid carbon dioxides
Cooling supply has been this field common approach.
Applicant's Zhejiang Ocean university is in the one application for a patent for invention CN201810715803.3 of proposition in 2018, disclosure
A kind of LNG refrigerator car, including car body, gas engine, heater, control valve, LNG fluid reservoir, gasifier, refrigerator carriage；
Gas engine is communicated by pipeline with one end of gasifier, and heater is equipped between gas engine and gasifier；LNG liquid storage
Tank is communicated by pipeline with the other end of gasifier, and control valve is equipped between LNG fluid reservoir and gasifier；Wherein, refrigerator carriage
Front end be equipped with first partition, first partition is orifice plate, and the front end of refrigerator carriage is separated into refrigeration chamber by first partition, gasification
Device is fixed in refrigeration chamber by supporting mechanism；Supporting mechanism includes the first support component, the second support component and connecting plate,
The program can carry out segmented refrigeration, improve energy utilization rate, energy conservation and environmental protection.
Applicant Jiangsu China steps gas-fired equipment sale Co., Ltd in one application for a patent for invention of proposition in 2013
CN201310462726.2, it discloses the refrigerating methods and its refrigerator car of a kind of LNG refrigerator car, belong to cold energy use technology neck
Domain.A large amount of cold energy is released in rewarming, gasifying stage using LNG, provides refrigerator car good cold air, is not needing in addition to disappear
It solves the problems, such as refrigerator car refrigeration in the case where the consumption energy, substantially increases the comprehensive utilization ratio of the energy, reduce refrigerator car
Operation cost.Evaporator is directly mounted in refrigerator car by the program, and install additional leak sensor, alarm, frost removal,
The equipment such as gasifier, cold storage agent case, temperature sensor and temperature controller are not only simple in structure, the small, good refrigeration effect of cold energy loss,
And the security performance of refrigerator car is high, and operating cost is low, energy conservation and environmental protection.
It should be understood that carrying out cooling supply to container-type refrigerating box as cold source using liquid LNG has been that this field is normal
See means.
But the development of the technology of this field is solely focused on and is freezed using independent cooling source such as liquid nitrogen, or is individually used
LNG (liquefied natural gas, liquefied natural gas) refrigeration；
Above-mentioned technology has the disadvantage that vehicle is in the stroke of 2000-3000km if using independent cooling source
Need the liquid nitrogen container of 2 450L of carry just enough reluctantly, as shown in the attached drawing 1 of CN201811126598.3, carry 4
450L liquid nitrogen container.
If individually using LNG freeze, with the operation of vehicle, gas source is simultaneously unstable, e.g., parking rest,
Whens transfer etc., vehicle does not need LNG as fuel, therefore not can guarantee stablizing for cold source and supply.
And by table look-up it is found that liquid nitrogen cooling capacity substantially are as follows: 411kJ/kg；Liquid LNG cooling capacity substantially 830kJ/kg；On
It states cooling capacity and refers to that liquid nitrogen or liquid LNG restore from liquid to the heat of absorption needed for room temperature.
It is known that no matter liquid nitrogen or liquid LNG its cooling capacity grade are all very high, if can rationally utilize, it will
Energy consumption is effectively reduced, reduces vehicle volume, improve logistics distance.
Summary of the invention
The purpose of the present invention is to provide a kind of joint refrigeration cold chain transportation vehicle, which passes through to liquid inert
Gas and liquid LNG cooling capacity carry out joint utilization, can reduce liquid inert gas flask volume, reduce vehicle volume, improve
Logistics distance improves energy utilization rate, avoids single use liquid inert gas, single use LNG as cold source bring system
Cold fluctuation is big, logistics occurs apart from the excessive problem of short, equipment volume.
To achieve the above object, the invention provides the following technical scheme: a kind of joint refrigeration cold chain transportation vehicle, including with
LNG is the vehicle of fuel, the cabinet that is arranged on vehicle, also equipped with liquid inert gas storage tank, is equipped in the cabinet
The heat exchange refrigeration system of heat exchange refrigeration is carried out to housing interior volume using liquid LNG and liquid inert gas as cold source.
In above-mentioned joint refrigeration cold chain transportation vehicle, the liquid inert gas is liquid carbon dioxide and/or liquid
Nitrogen.
"and/or" of the present invention refers to: liquid inert gas is liquid carbon dioxide, liquid nitrogen, liquid carbon dioxide
With three kinds of optional situations of liquid nitrogen.
In above-mentioned joint refrigeration cold chain transportation vehicle, the vehicle is equipped with liquid LNG storage tank, the heat exchange system
Cooling system include for by the cooling capacity of the liquid LNG in liquid LNG storage tank imported into intracorporal first heat exchange unit of case, be used for by
The cooling capacity of liquid inert gas in liquid inert gas storage tank imported into intracorporal second heat exchange unit of case.
In above-mentioned joint refrigeration cold chain transportation vehicle, first heat exchange unit is for cold to the liquid of liquid LNG
One of amount, gasification cooling capacity, cooling capacity of LNG gas rewarming to preset temperature or a variety of cooling capacity and housing interior volume are changed
Heat；
Second heat exchange unit is used for the liquid cooling capacity to liquid inert gas, gasification cooling capacity, inert gas rewarming
One of cooling capacity to preset temperature or a variety of cooling capacity exchange heat with housing interior volume.
In above-mentioned joint refrigeration cold chain transportation vehicle, first heat exchange unit includes being arranged in case intracorporal first
Evaporator, the entrance of first evaporator are connected to liquid LNG storage tank, and the outlet of first evaporator is connected to vehicle
Carry engine；
Second heat exchange unit includes being arranged in intracorporal second evaporator of case, the entrance of second evaporator
It is connected to liquid inert gas storage tank, second evaporator is equipped with first outlet, and the first outlet is communicated with the atmosphere.
In above-mentioned joint refrigeration cold chain transportation vehicle, second evaporator be equipped with second outlet, described second
Outlet is connected to the inner space of cabinet.
In above-mentioned joint refrigeration cold chain transportation vehicle, the entrance of first evaporator is equipped with the first control valve, institute
The entrance for the second evaporator stated is equipped with the second control valve.
In above-mentioned joint refrigeration cold chain transportation vehicle, third control is respectively equipped in the first outlet and second outlet
Valve processed and the 4th control valve.
It further include using air and/or engine exhaust heat to liquid in above-mentioned joint refrigeration cold chain transportation vehicle
LNG gasifies the third heat exchange unit used for on-board engine, and the entrance of the third heat exchange unit is equipped with the 5th control
Valve processed.
In above-mentioned joint refrigeration cold chain transportation vehicle, temperature sensor is equipped in the cabinet, the cabinet is
Insulated container.
Compared with prior art, the beneficial effects of the present invention are:
The present invention carries out joint refrigeration as cold source using LNG and liquid inert gas, has the advantage that
One, LNG and liquid nitrogen or liquid carbon dioxide cooling capacity grade are high, when the two carries out joint refrigeration, can reduce vehicle
The volume and quantity of carrier fluid state inertial gas tank can be incited somebody to action by assessment in the logistics distance of 2000-3000km
The liquid nitrogen container of traditional 2-4 required 450L cancels instead 2 150L liquid nitrogen containers below, installation site
Can be with flexible choice, such as the corner location being alternatively provided between headstock and cabinet, or even be alternatively provided inside cabinet
It can be achieved on, vehicle volume can be effectively reduced, meanwhile, also improve the utilization efficiency for cooling capacity.
Two, using LNG and liquid nitrogen or liquid carbon dioxide joint refrigeration, disadvantage that both can be complementary has and adapts to
In long-distance logistics and stable advantage of freezing.When vehicle is in continual and steady transportational process, using LNG as major refrigeration, with liquid
State inert gas is that auxiliary cold source carries out refrigeration cold insulation, lazy with liquid when vehicle is out of service or driver's parking rest
Property gas be major refrigeration carry out refrigeration cold insulation.The two combination can guarantee that in this transportational process, refrigeration is stablized, and can
To guarantee that the cooling capacity in 2000-3000km logistics progress is supplied.
Three, vehicle remoulding and manufacturing cost are low, traditional due to the reduction of the volume and quantity of liquid inert gas storage tank
It is the refrigerator car of fuel without obviously being reequiped to main body of vehicle frame using LNG, it is only necessary to which heat exchanging refrigeration system is transformed i.e.
It is adaptable to existing vehicle.
Detailed description of the invention
Fig. 1 is the perspective view of the embodiment of the present invention 1；
Fig. 2 is the structural block diagram of the embodiment of the present invention 1；
Fig. 3 is the structural block diagram of the embodiment of the present invention 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
A kind of joint refrigeration cold chain transportation vehicle referring to FIG. 1-2, including being the vehicle 1 of fuel, setting in vehicle 1 using LNG
On cabinet 2 be equipped with also equipped with liquid inert gas storage tank 3 in the cabinet 2 with liquid LNG and liquid inert gas
The heat exchange refrigeration system of heat exchange refrigeration is carried out to 2 inner space of cabinet for cold source.
In the present embodiment, liquid LNG is stored in liquid LNG storage tank 4, this is existing using LNG as fuel
The container that vehicle 1 can carry.For liquid inert gas there are in liquid inert gas storage tank 3, this is also that this field is common
Container.In general, either liquid LNG storage tank 4, liquid inert gas storage tank 3 have insulating layer, such as vacuum heat-insulating layer or
Other heat insulation layers.
In actual application, heat exchange refrigeration system passes through Vehicle Controller or other any optional control modes
It is controlled, or even is not repelled point for manually controlling liquid LNG and the refrigeration primary and secondary in liquid inert gas.
Specifically, during transportation, if in normal 1 operational process of vehicle, heat exchange refrigeration system is adopted mostly
It uses liquid LNG to freeze as main cold source, freezes by auxiliary cold source of liquid inert gas；It is temporarily ceased in vehicle 1
Such as driver's rest in operational process, carry out halfway unloading replenish, visiting, under LNG aerating situation, heat exchange refrigeration system uses liquid
State inert gas is that main cold source freezes, and does not use or is used as auxiliary cold using liquid LNG on a small quantity under 1 idling mode of vehicle
Freeze in source.
Certainly, in actual application, even if vehicle 1 is in normally travel state, do not repel with liquid inert gas yet
Body is the embodiment that major refrigeration freezes.
In the present embodiment, the liquid inert gas is liquid nitrogen, compared to liquid carbon dioxide, the cooling capacity product of liquid nitrogen
Position is higher, without storage with pressure, will not become dry ice blocking pipeline during the pressure relief process, so the preferred liquid nitrogen conduct of the present embodiment
One of cold source.
But liquid carbon dioxide is also optional one more good cold source, the price of liquid carbon dioxide is 300
Yuan/ton, liquid carbon dioxide cooling capacity substantially 650kJ/kg, the price of liquid nitrogen is at 500-1000 yuan/ton, and liquid nitrogen cooling capacity is substantially
Are as follows: 411kJ/kg；It is more particularly suitable using liquid carbon dioxide for economy point, for equipment pressure resistance angle, use
Liquid nitrogen is more particularly suitable.In the present embodiment, in order to reduce equipment stress levels, using liquid nitrogen as cold source.To use liquid
Carbon dioxide then needs pipeline more pressure-resistant as cold source.
"and/or" of the present invention refers to: liquid inert gas is liquid carbon dioxide, liquid nitrogen, liquid carbon dioxide
With three kinds of optional situations of liquid nitrogen.
In the present embodiment, the vehicle 1 is equipped with liquid LNG storage tank 4, and the heat exchange refrigeration system includes being used for
By the first heat exchange unit 5 that the cooling capacity of the liquid LNG in liquid LNG storage tank 4 is imported into cabinet 2, it is used for liquid inert gas
The cooling capacity of liquid inert gas in body storage tank 3 imported into the second heat exchange unit 6 in cabinet 2.
Specifically, first heat exchange unit 5 is used for the liquid cooling capacity to liquid LNG, gasification cooling capacity, LNG gas
The cooling capacity of rewarming to preset temperature exchanges heat with 2 inner space of cabinet；
Second heat exchange unit 6 is used for the liquid cooling capacity to liquid inert gas, gasification cooling capacity, inert gas rewarming
Cooling capacity to preset temperature exchanges heat with 2 inner space of cabinet.
Above-mentioned preset temperature different from according to the function difference of cabinet 2, it is general next if cabinet 2 is for fresh-keeping
Say that the temperature in cabinet 2 needs temperature control to 2-10 DEG C, this when preset temperature to can choose be -10 DEG C to -20 DEG C etc.；
If cabinet 2, for storing to frozen product, the temperature in cabinet 2 should be controlled subzero, this when is default
Temperature should be lower, such as -20 DEG C or -30 DEG C.For synthesis, preset temperature should be lower than temperature required in cabinet 2.
For specifically, the first heat exchange unit 5 and the second heat exchange unit 6 are evaporator, and evaporator can be with any
The optional evaporator in this field is implemented, and in the present embodiment, the inner wall of cabinet 2 is arranged in the form of evaporation coil.
In the present embodiment, first heat exchange unit 5 includes the first evaporator 12 being arranged in cabinet 2, described
The entrance of the first evaporator 12 be connected to liquid LNG storage tank 4, the outlet of first evaporator 12 is connected to vehicle-mounted start
Machine 7；
First evaporator 12 is preferably the evaporator of coil arrangement, and cabinet 2 is arranged in by the inner wall of the side of near-car head.
Alternatively, it can also also be added between the first evaporator 12 and the entrance of on-board engine 7
It is single that one gaseous state LNG for the first evaporator 12 to be discharged is heated up to the 4th heat exchange that room temperature is used for on-board engine 7
Member 14, with reference to Fig. 3.
Second heat exchange unit 6 includes the second evaporator 13 being arranged in cabinet 2, second evaporator 13
Entrance be connected to liquid inert gas storage tank 3, second evaporator 13 is equipped with first outlet 8, the first outlet 8
It is communicated with the atmosphere.
It is passed through liquid nitrogen in second evaporator 13 of the second heat exchange unit 6, is exchanged heat in the second evaporator 13 to liquid nitrogen and gas
Change heat absorption, the nitrogen for then gasifying and heating up drains into atmosphere from first outlet 8.
Second evaporator 13 is preferably the evaporator of coil arrangement, and setting is in 2 left and right sides of cabinet or upper three face in left and right
Wall.
Any component that heat exchanger effectiveness can be improved such as heat exchange wing can be added on evaporator, it is not excessive to this present embodiment
Limitation.
As the preferred embodiment of the present embodiment, second evaporator 13 is equipped with second outlet 9, the second outlet
9 are connected to the inner space of cabinet 2.This preferred design be for fresh-keeping cabinet 2 it is applicable, by due course to cabinet 2
Interior supplement nitrogen keeps the atmosphere of inert gases in cabinet 2, inhibits the respiration of plant, vegetables and other items.
In order to improve the refrigeration ratio of cold source used in joint refrigeration, the present embodiment preferably controls liquid by solenoid valve
The amount of inert gas and LNG for refrigeration, specifically, the entrance of first evaporator 12 are equipped with the first control valve 10,
The entrance of second evaporator 13 is equipped with the second control valve 11.
Control means as one preferred, the first control valve 10 and the second control valve 11 and third control described hereinafter
Valve 15 and the 4th control valve 16 processed are all solenoid valve, carry out controlling its aperture by Vehicle Controller.
The aperture that the first control valve 10 and the second control valve 11 are controlled by Vehicle Controller, can control in process of refrigerastion
Major refrigeration selection.
Preferably, third control valve 15 and the 4th control valve are respectively equipped in the first outlet 8 and second outlet 9
16.Third control valve 15 and the 4th control valve 16 are mainly used for carrying out repeating benefit to the nitrogen that the second evaporator 13 is discharged
With a small amount of nitrogen is drained into cabinet 2, maintains the atmosphere of inert gases in cabinet 2.
It in the present embodiment, as a preferred option, further include utilizing air and/or engine exhaust heat with reference to Fig. 3
Gasify the third heat exchange unit 17 used for on-board engine 7 to liquid LNG, the entrance of the third heat exchange unit 17
Equipped with the 5th control valve 18.
In existing design air and/or engine exhaust heat to liquid LNG gasified mainly by heat exchanger into
Row directs water into heat exchanger after absorbing various waste heats by water and gasifies to liquid LNG.
Third heat exchange unit 17 is existing using LNG as the existing equipment on the refrigerating transport vehicle of power, is not used in pair
Cabinet 2 freezes, and is mainly used for carrying out liquid LNG gasification and is allowed to be formed 0-40 DEG C of gas entering engine.Retain third to change
The purpose of hot cell 17 is, when cabinet 2 is without refrigeration or empty wagons, it is single that liquid LNG storage tank should be switched to third heat exchange
Member 17, in favor of the normally travel of vehicle 1.
In order to be conducive to keep the first control valve 10, the control of the second control valve 11 reliable temperature regulation in cabinet 2,
It is equipped with temperature sensor 19 in the cabinet 2, the aperture of the first control valve 10 is controlled by the data of temperature sensor 19
With the aperture of the second control valve 11.If the temperature in cabinet 2 is excessively high, the aperture or the second control of the first control valve 10 should be turned up
The aperture of valve 11 processed, or in vehicle 1 without the aperture of the second control valve 11 being tuned up, conversely, then reducing first in driving process
The aperture of control valve 10 and the second control valve 11.
As the preferred scheme of the present embodiment, gas sensor 20, gas sensor 20 can also be set in cabinet 2
For oxygen equal size in detection gas, the data foundation controlled as third control valve 15 and the aperture of the 4th control valve 16.
In the present embodiment, the cabinet 2 is preferably insulated container.
Certainly, in the present embodiment, do not repel and add with mass exchange the refrigeration mode for carrying out heat conduction, such as
Cooled down described in CN201811126598.3 by way of top spray for insulated container.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of joint refrigeration cold chain transportation vehicle, including using LNG as the vehicle of fuel, the cabinet being arranged on vehicle, feature
It is, also equipped with liquid inert gas storage tank, the cabinet is interior to be equipped with using liquid LNG and liquid inert gas as cold source pair
Housing interior volume carries out the heat exchange refrigeration system of heat exchange refrigeration.
2. joint refrigeration cold chain transportation vehicle according to claim 1, which is characterized in that the liquid inert gas is liquid
State carbon dioxide and/or liquid nitrogen.
3. joint refrigeration cold chain transportation vehicle according to claim 1, which is characterized in that the vehicle is equipped with liquid
LNG storage tank, the heat exchange refrigeration system include for the cooling capacity of the liquid LNG in liquid LNG storage tank to be imported into cabinet
The first heat exchange unit, for the cooling capacity of the liquid inert gas in liquid inert gas storage tank to be imported into case intracorporal second
Heat exchange unit.
4. joint refrigeration cold chain transportation vehicle according to claim 3, which is characterized in that first heat exchange unit is used for
To one of liquid cooling capacity of liquid LNG, gasification cooling capacity, cooling capacity of LNG gas rewarming to preset temperature or a variety of cooling capacity with
Housing interior volume exchanges heat；
Second heat exchange unit is used for the liquid cooling capacity of liquid inert gas, gasification cooling capacity, inert gas rewarming to pre-
If one of cooling capacity of temperature or a variety of cooling capacity exchange heat with housing interior volume.
5. joint refrigeration cold chain transportation vehicle according to claim 3, which is characterized in that first heat exchange unit includes
It is arranged in intracorporal first evaporator of case, the entrance of first evaporator is connected to liquid LNG storage tank, and described first steams
The outlet of hair device is connected to on-board engine；
Second heat exchange unit includes setting in intracorporal second evaporator of case, and the entrance of second evaporator connects
To liquid inert gas storage tank, second evaporator is equipped with first outlet, and the first outlet is communicated with the atmosphere.
6. joint refrigeration cold chain transportation vehicle according to claim 4, which is characterized in that second evaporator is equipped with the
Two outlets, the second outlet are connected to the inner space of cabinet.
7. joint refrigeration cold chain transportation vehicle according to claim 4, which is characterized in that the entrance of first evaporator
Equipped with the first control valve, the entrance of second evaporator is equipped with the second control valve.
8. joint refrigeration cold chain transportation vehicle according to claim 5, which is characterized in that the first outlet and second goes out
Third control valve and the 4th control valve are respectively equipped on mouthful.
9. -8 any joint refrigeration cold chain transportation vehicle according to claim 1, which is characterized in that further include utilizing air
And/or engine exhaust heat gasifies the third heat exchange unit used for on-board engine to liquid LNG, the third
The entrance of heat exchange unit is equipped with the 5th control valve.
10. -8 any joint refrigeration cold chain transportation vehicle according to claim 1, which is characterized in that set in the cabinet
There is temperature sensor, the cabinet is insulated container.
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