CN107631529A

CN107631529A - A kind of portable example quick freezing and cold preserving case

Info

Publication number: CN107631529A
Application number: CN201710916199.6A
Authority: CN
Inventors: 吴胜泽; 张燕; 朱小钿; 刘辉; 潘振朝; 熊波; 梁祖培; 刘贵州; 廖文彬; 陈志波; 罗永潮; 朱建恩; 苏焕斌
Original assignee: Guangdong Testing Institute of Product Quality Supervision
Current assignee: Guangdong Testing Institute of Product Quality Supervision
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2018-01-26

Abstract

The present invention provides a kind of portable example quick freezing and cold preserving case, including casing, freeze proof flexible pipe, tells that casing includes outer case and internal box, the internal box is inside the outer case, characterized in that, the outer case is additionally provided with liquid nitrogen plan, the liquid nitrogen plan is located at the side of the internal box；The tank wall of the internal box is provided with heat-insulation layer, waterproof layer, the waterproof layer is symmetrically set in the heat-insulation layer both sides, the interior case lid is sequentially provided with metal level, heat-insulation layer, waterproof layer, the first hollow sandwich, the tank floor is additionally provided with the second hollow sandwich, and the liquid nitrogen plan is connected with first hollow sandwich, the second hollow sandwich respectively by freeze proof flexible pipe；First hollow sandwich is connected with air jet system.Shock-absorbing capacity of the present invention is good, safety and stability, is convenient for carrying, and is stored suitable for outdoor sampling process for the snap frozen of sample, ensures the freshness of sample.

Description

A kind of portable example quick freezing and cold preserving case

Technical field

The present invention relates to food inspection to sample storage device auxiliary equipment, and in particular to a kind of portable example quick freezing and cold preserving Case.

Background technology

" bread is the staff of life ", diet are the main ways that human body draws the nutrition depended on for existence and energy from external environment Footpath, it is basis and the performance of vital movement；" eat with An Weixian ", the safety of food is not only related to the existence of people and body is good for Health, and it is related to the quality and the ups and downs of nationality, a national reputation is also directly influenced in international trade contacts.China There are 23 provinces, wherein 14 coastal, east and southern mainland coastline are up to the waters of km more than 1.8 ten thousand, inland sea and Bian Hai Area ten thousand sq-km about more than 470, proportion of the aquatic products in food is even more constantly growth in recent years, and the safety of aquatic food is also It is taken seriously.

Be contaminated in the growth waters of aquatic products or breeding process in the illegal additive prohibited using country or Using the additive of excess, the risk that can all directly contribute aquatic food steeply rises.It then becomes necessary to strengthen aquatic food Sampling supervision, irregularly carries out the work of aquatic products food security sampling Detection, progressively expands aquatic products food sampling inspection covering Face, the selective examination batch to excessive risk aquatic products food is increased, constantly lift the disposal energy of problem aquatic products food after sampling Detection Power.The accountability of serious aquatic products food safety Regulation is called to account mechanism, constantly strengthens supervise and examine dynamics, unimpeded aquatic products food security is lifted Report channel, it is ensured that aquatic products food security zero defects.

Out of doors in sampling process, some specific index parameters need can under conditions of aquatic products freshness is kept Obtain accurate data, and from the time interval sampled into test in laboratory because the geographical position of sampling position is different and nothing Method ensures.Therefore, in general refrigeration means can not reach fresh-keeping requirement.Therefore, typically can by the way of liquid nitrogen flash freezer, The refrigerating chamber in sampling location will be put into by quick-frozen sample, then detection base laboratory is transported back by refrigerating box, it is ensured that is treated The freshness of test sample product.Liquid nitrogen container is divided into nitrogen storage tank, liquid nitrogen transfer cask in the prior art, hold-up tank is mainly used in indoor liquid The standing storage of nitrogen, should not make long distance transportation use in the operating condition；Liquid nitrogen transfer cask is made to meet the condition of transport Special aseismatic design, but volume is big and heavy, it is inconvenient to carry.To using freezing of the liquid nitrogen as sampling refrigerating box Source, then higher requirement is proposed to the antidetonation buffering stability of refrigerating box.

Therefore, it is badly in need of providing a kind of portable example quick freezing and cold preserving case, using liquid nitrogen as refrigerated source, is carried for detected sample For quick-freezing fresh-keeping.

The content of the invention

In view of this, a kind of portable example quick freezing and cold preserving case provided by the invention, using the structure of multi-buffer, buffering Functional, used liquid nitrogen plan outer tank body can have certain slip with respect to inner tank body, coordinate the flexible sealing of the present invention The a certain degree of stretching of part, so as to change the volume of tank body, to reduce the tank body caused by rocking during transport or use Pressure caused by internal pressure rise, the security of the present invention is improved, extends product useful life.The present invention can be to the sample of collection Product rapidly and uniformly freeze, and extend the freshness pot-life of sample, safety and stability, are convenient for carrying, are easy to use, are adapted to out of doors Cold storage container in sampling process as collection sample.

The technical scheme is that：A kind of portable example quick freezing and cold preserving case, including casing, freeze proof flexible pipe, tell case Body includes outer case and internal box, and the internal box is inside the outer case, it is characterised in that the outer case is additionally provided with Liquid nitrogen plan, the liquid nitrogen plan are located at the side of the internal box；

The outer case is provided with outer case lid, and symmetrically staggeredly elastomer and magnetic block are provided with the inside of the outer case lid；

The internal box is provided with interior case lid, and the elastomer on the outside of the interior case lid with offseting, the magnetic block and the interior case Outer side of lid connects；

The tank wall of the internal box is provided with heat-insulation layer, waterproof layer, and the waterproof layer is symmetrically set in the heat-insulation layer both sides, described interior Case lid is sequentially provided with metal level, heat-insulation layer, waterproof layer, the first hollow sandwich, and the tank floor is additionally provided with the second hollow sandwich, The liquid nitrogen plan is connected with first hollow sandwich, the second hollow sandwich respectively by freeze proof flexible pipe；Interior case in the present invention The structure of body can provide an effective thermal environment for collection sample, while have preferable water resistance.The insulation Layer can realize that the waterproof layer is in the prior art can be by of the prior art resistance to low by insulation material of the prior art Warm waterproof material is realized.

In the present invention, it can be realized using elastomer and magnetic block by any prior art, pass through elastomer and magnetic block Outer case and internal box are fitted close in upper end, after outer case lid is closed, the elastomer offsets with the interior case lid surface, There can be certain cushioning effect to the stress of tank surface；The magnetic block can be adsorbed with the metal level of internal box, in restriction The position of casing, avoid internal box shift influence outer case inside resistance to overturning.

First hollow sandwich is connected with air jet system, and the air jet system includes the first jet structure, the second jet Structure, the second jet symmetrical configuration are located at the first jet structure both sides；

Second hollow sandwich is arranged with spray orifice.

Particularly, freeze proof flexible pipe of the invention can be realized by this area any prior art, and can pass through existing skill The freeze proof flexible pipe is provided in the heat-insulation layer of side tank wall of the internal box by art, then respectively with the described first hollow folder Layer, the connection of the second hollow sandwich.Preferably, the connection of the freeze proof flexible pipe and first hollow sandwich, the second hollow sandwich Place is respectively equipped with plenum member, and the plenum member can be realized by any prior art.

In the present invention, after opening liquid nitrogen plan, liquid nitrogen fluid respectively enters the first hollow sandwich, second by freeze proof flexible pipe Hollow sandwich, then sprayed by air jet system from top, spray orifice from bottom, it is ensured that the freezing uniformity of sample is gathered, is effectively carried The high pot-life of testing sample.

The first jet structure includes the first connecting tube and the first shower nozzle, first connecting tube and the first shower nozzle one Connection, first shower nozzle is spheroid, and first nozzle surface is arranged with through hole.In this manner, it can further improve The diffusion profile of frozen liquid.

The second jet structure includes the second connecting tube and the second shower nozzle, and second connecting tube connects with the second shower nozzle Connect, second shower nozzle is spheroid, and second nozzle surface is arranged with through hole；Atomization is provided with inside second shower nozzle Ball.Particularly, the atomization ball is the talcum that the surface processed by prior art is uniformly provided with through hole, and the talc lump can The air pressure of the air-flow sprayed from the second shower nozzle is reduced, while plays the role of atomization diffusion so that frozen gas are on internal box The distribution in portion is more uniform.The atomization ball is that talcum is atomized ball, and talcum is that long-term physics occurs in underground, changes for other mineral Learn what change formed, belong to a kind of " metamorphic mineral ", generally formed by the rock of magnesium through rotten.The talcum be it is a kind of chemically The highly stable stone material of matter, will not be as other stones and acid-base reaction.Secondly, talcum is a kind of non-Porous materials, will not be inhaled Attached gas, also odorless, tasteless itself.In addition, the thermal capacity of talcum is very high, therefore it can rapidly cool and maintain temperature.This hair Bright atomization ball can keep the temperature at chilling temperature, avoid the loss of cold, cause the waste of resource.

The horizontal cross-section of the spray orifice is isosceles trapezoid.The shape of the spray orifice can effectively improve the air pressure of bottom flow, So that freezing is more uniform.

Particularly, the outer case lid realizes that folding connects by hinge arrangement of the prior art, the outer case lid with it is outer Casing junction is provided with the sealing strip of prior art, strengthens sealing property；The interior case lid passes through hinge knot of the prior art Structure realizes that folding connects, and the interior case lid is provided with the sealing strip of prior art with internal box junction, strengthens sealing property.

The box house of the internal box is highly set to h, and the length of first connecting tube is 0.25-0.35h, and described The length of two connecting tubes is 0.15-0.22h.By this setting, the main refrigerated source using the first jet structure as top, the second spray Auxiliary refrigerated source of the depressed structure as top, coordinate with the spray orifice of bottom so that the frozen liquid of whole internal box inner space It is uniformly distributed, the freezing uniformity of collection sample can be effectively improved.

The outer case bottom includes damp-proof layer, thermal insulation layer, elastomer layer, foot pad, and the thermal insulation layer is symmetrically set in described Elastomer layer both sides, the damp-proof layer on the outside of the thermal insulation layer, located at the outer case bottom with described prevent by the foot pad Damp layer connection.In the present invention, the elastomer layer is ethylene octane copolymer layer of the prior art, the TPO elasticity Body（Polyolefin Elastomer, abbreviation POE）With excellent elastic performance, compared with the rubber of traditional chemical crosslinking, The required cost of POE acquisition elasticity is lower, quality is lighter, energy consumption is lower, to more environment-friendly, is widely used to automobile at present Parts, electric wire, machine tool, household articles, toy, amusement and sporting goods, sole, seal, PUR etc. are led Domain.The thermal insulation layer is SiO₂Aerogel heat-proof layer, the SiO₂Aerogel heat-proof layer can be realized by any prior art. The damp-proof layer can be realized by barrier material of the prior art.By the setting of the thermal insulation layer, elastomer layer of outer case, together The positioning of Shi Peihe foots pad is fixed, and can have preferable buffering and damping effect；Also there is excellent heat-holding dampproof performance.

Particularly, the outer case is provided with heat insulating coat provided with heat-insulated outside, and the heat insulating coat is SiO₂Aeroge every Hot coating, the SiO₂Aerogel heat-proof coating can be realized by any prior art.The heat of outside can effectively be completely cut off, kept away Exempt from that heat transfer occurs with box house, effectively extend the insulation time limit.

The liquid nitrogen plan includes tank body, and the tank body is provided with exhaust outlet, and the freeze proof flexible pipe is connected with exhaust outlet, institute State exhaust outlet and be provided with valve member, the valve member includes the components such as atmospheric valve, pressure charging valve, can be any existing by this area Technology is realized.The tank body lower end is provided with base, and the tank body includes outer tank body, inner tank body, and the inner tank body is located at outer tank body It is internal, it is characterised in that the outer tank body lower ending opening, the inner tank body upper end open, the tank body is interior to be provided with flexible sealing Part, one end of the flexible seals and the upper end of inner tank body connect, the other end and the outer tank body inner side of the flexible seals Upper end connection；

The outer tank body lower end is provided with first connecting portion, and the base upper end is provided with second connecting portion, and the first connecting portion is Permanent magnet connecting portion, the second connecting portion are permanent magnet connecting portion, and the first connecting portion and second connecting portion magnetic are attracting, The first connecting portion is connected with second connecting portion；

The internal face of the outer tank body is arranged with neck, and the neck is provided with magnetic absorption layer, the outer wall of the inner tank body Face is arranged with metal fixture block, and the neck is connected with metal fixture block；

Particularly, the flexible seals are coaxially disposed with the tank body.

Further, the flexible seals are the hollow tube-shape seal of side indent.

In the present invention, reaching certain pressure condition, outer tank body there can be certain slip with respect to inner tank body, coordinate this hair The a certain degree of stretching of bright flexible seals, so as to change the volume of tank body, to reduce because of the rolling during transport or use Pressure caused by tank body internal pressure rise caused by dynamic, extends product useful life.In extreme circumstances, when tank body internal pressure is too high When, under pressure, outer tank body and inner tank body can strut automatically, avoid internal pressure too high and produce potential safety hazard.Flexible sealing Part can connect the inwall of inner tank body upper end and inner tank body, realize the air-tightness of the two seam crossing.Flexible seals can be selected any A kind of flexible encapsulant is made, such as plastics, rubber.Metal projection outside inner tank body can be embedded in outer tank body inwall In neck, then coordinate magnetic absorption layer inside neck to strengthen fixing, avoid outer tank body and inner tank body from bouncing back, mitigate outer tank body and Restoring force between inner tank body is to the compressing in tank.Metal projection and neck can by existing metal working process with it is interior Tank body, outer tank body by integral forming, the magnetic absorption layer can be arranged on inside neck by any prior art.The outer tank body Lower end is provided with first connecting portion, and the base upper end is provided with second connecting portion, by between first connecting portion and second connecting portion Magnetic connection, further can effectively limit inner tank body, the glide direction of outer tank body, avoid it from deflecting and damage flexibility Seal, tank body sealing is caused to decline.Particularly, under normal operation, the magnetic of first connecting portion and second connecting portion is passed through Property absorption affinity, the gravity of outer tank body, the absorption affinity of metal projection and neck and its inwall so that can between outer tank body and inner tank body Reach the state of a stable equilibrium, will not shift.Particularly, company of the present invention in first connecting portion and second connecting portion Meet place and be provided with alarm device, when first connecting portion separates with second connecting portion, alarm device can warn, to remind operating personnel Pay attention to.

Further, the wall of the outer tank body is sequentially provided with metal outer wall, macromolecule hydrogel layer, rubber from outside to inside Layer, capillary fringe, aluminium foil layer, metal inner surface, the macromolecule hydrogel layer are high including the first macromolecule hydrogel layer and second Molecule hydrogel layer, the first macromolecule hydrogel layer, the second macromolecule hydrogel layer are symmetrically set in the rubber layer both sides, The capillary fringe penetrates the rubber layer and connects the first macromolecule hydrogel layer and the second macromolecule hydrogel layer, institute State rubber layer and be arranged with through hole, the metal inner surface is arranged with neck.Particularly, heretofore described capillary fringe, Rubber layer can realize that preferably metal capillary, the preferably larger rubber of coefficient of elasticity are made by this area any prior art For the rubber layer of the present invention；The macromolecule hydrogel layer is externally provided with macromolecule membrane parcel, and is sticked together by adhesive in height Molecule hydrogel layer surface, the macromolecule membrane can prevent the Water deep leaching of macromolecule hydrogel, evaporation.

Preferably, the rubber layer is thermoplastic elastomer, and the thermoplastic elastomer (TPE) is a kind of high-elastic with rubber Property, high intensity, high resilience, again have can injection molding feature material.With environment-protecting and non-poisonous safety, hardness range is wide, There are excellent coloring, soft-touch, weatherability, fatigue resistance and temperature tolerance, processing characteristics is superior, without vulcanization, can follow Ring use reduces cost, both can be with secondary injection molding, can also with the matrix material coating and bonding such as PP, PE, PC, PS, ABS It is separately formed, there is excellent elastic buffer performance.

The outer tank body of the present invention, by the metal outer wall that sets gradually, macromolecule hydrogel layer, rubber layer, capillary fringe, Aluminium foil layer, metal inner surface, the effect of damping, buffering can be reached, avoid the effect of external stress, change the internal pressure of the present invention, shadow Ring its stability.Macromolecule hydrogel layer of the invention by uniformly arranging, in outer tank body by the external stress from side When, the moisture in the first macromolecule hydrogel layer enters the second macromolecule hydrogel layer by capillary fringe, then leads to again Excess pressure difference, the moisture in the second macromolecule hydrogel layer returns to the first macromolecule hydrogel layer by capillary fringe, realizes Buffering.Synergistic compound rubber layer synergistic effect simultaneously, reaches optimal buffering effect.

Further, the metal inner surface is in 9%Ni steel inwall, Ni36 invar alloy inwall, 5083 aluminium alloy inwalls It is any.Particularly, inner tank body of the invention is prepared with metal inner surface using identical material.Pass through inner tank body of the present invention and gold Belong to the setting of inwall, stable austenitic state can be kept, resist the tank body chi as caused by high and low temperature environment and difference variation Very little change and bond open are dangerous, improve use and the Transport Safety of the present invention.

In the present invention, the 9%Ni steel inwalls of use, wherein 9%Ni steel are a kind of low-carbon quenched and tempered steel containing higher Ni contents, In -196 DEG C of minimum temperature in use, it remains to keep good obdurability and high intensity.Heat treatment mode mainly has following 3 Kind:Normalizing-normalizing-tempering (NNT), finally give tempered martensite and bainite structure, quenching-tempering (QT) and quenching-Asia Warm quenching-tempering (IHT) can obtain low-carbon tempered martensite.Chemical composition and mechanical property of the country variant to 9%Ni steel It can require to be slightly different, its cryogenic mechanics performance depends primarily on its chemical composition, the degree of purity of steel and institutional framework etc. Aspect, the temperature difference it is larger, especially there is excellent stability under low-temperature condition, improve the safety in utilization of the present invention.

The Ni36 invar alloy inwalls of use, wherein Ni36 invar alloy is the face-centred cubic structure containing 36%Ni, is one Kind iron-based Langaloy, its function admirable, there is relatively low hot expansibility, temperature changes, and its size is basically unchanged, compared Relatively stable, average coefficient of expansion is 1.6 × 10 under normal temperature^-6/ DEG C, Ni contents be 36% Ni-Fe invar alloy temperature as little as- Stable austenitic state is maintained at 273 DEG C.The performance of invar alloy makes it when being applied under transporting low temperature environment The security of transport is substantially increased, the tank body of invar alloy material can be resisted to be caused by high and low temperature environment and difference variation Tank body size change and bond open is dangerous, improve the safety in utilization of the present invention.

5083 aluminium alloy inwall in the present invention, wherein the aluminium used has face-centred cubic structure, with other metal phase ratios, temperature Degree declines, and its mechanical property does not decline, strengthened to a certain extent on the contrary, no black brittleness, therefore aluminum alloy materials are each Industry is used widely.The aluminium alloy of used at ultra-low temperature 5083 is to be applied to one of low-temperature storage tank material, and the alloy has good Plasticity, higher intensity, corrosion resistance and the advantages that processability, the security for improving the transport of the present invention and using.

Further, the base include body, the symmetrically arranged second connecting portion in body upper end, the body include according to Arlt's strata, cushion, antibiotic layer, waterproof layer, the bottom plate of secondary setting.

The base of the present invention, used arlt's strata are to be interweaved by the string of prior art with organic fiber The tridimensional network of formation, there is high malleable.The antibiotic layer is Fe of the prior art₃O₄- graphene composite antibacterial Layer, the waterproof layer is polyurethane water-proof layer of the prior art, and the bottom plate is high rigidity timber of the prior art or wood Foundation board.

The base of the present invention, by the effect of arlt's strata and cushion, there is excellent antidetonation to buffer, while this hair The bottom plate of bright use is netted due to high rigidity timber of the present invention or wood-fibred base plate interior compared with the metallic plate of prior art Fibre structure and there is certain cushioning effect；, being capable of anti-corrosion protection against the tide by the effect of antibiotic layer and waterproof layer；In view of this hair Bright portable performance, base of the present invention have the advantages of in light weight, will not cause extra burden.

Further, the cushion includes EPE plates, the first projection, the second projection, and first projection is located at described On EPE plates, on the EPE plates, first projection is staggeredly symmetrically set second projection in opposite directions with second projection Put.Particularly, the end of first projection is provided with spacing, the end of second projection with the EPE plates where the second projection Offseted with the EPE plates described in first projection.In the present invention, EPE plates of the prior art, EPE are used （ExpandablePolyethylene）, it is expandability polyethylene, also known as pearl cotton, is non-crosslinked hole-closing structure, it is with low Density polyethylene（LDPE）For the high foamed polyethylene product of main material extruding generation.It is by low density polyethylene (LDPE) fat through physics Foaming produces countless separated foams and formed.The shortcomings that overcoming frangible common foamed glue, deformation, recovery difference.With water proof Moistureproof, shockproof, sound insulation, insulation, plasticity is good, toughness is strong, reconstituted circularly, environmental protection, strong crashworthiness power many advantages, such as, also have Good chemical resistance.

Further, the horizontal cross-section of first projection is circular arc, and the horizontal cross-section of second projection is circular arc, institute The radian for stating the first projection is 1.5-2.2 times of the second projection radian.

In the present invention, first projection, the second projection, EPE plates are prepared using the material of phase same material, the buffering of use Layer, can be in the feelings by external stress by the effect of the first projection and the second projection of the different volumes that are staggered in opposite directions Elastic deformation occurs under condition, the longitudinal stress being subject to is moved to laterally expansion, and realizes resilience, so as to reach the effect of damping, buffering Fruit.

Further, described its raw material of Macromolecule glue-line includes 2-6 part acryloyls proline methyl ester, 4-12 by weight Part polyvinyl alcohol, 0.01-0.19 parts non-ionic celluloses ether, 0.5-2 parts maleic anhydride, 0.3-1.5 parts potassium peroxydisulfate, 0.01-0.07 parts trihydroxy glutaric acid, 0.02-0.05 parts cerium hydroxide and the pure water of 90-100 parts.In the present invention, described third The raw materials such as alkene acyl proline methyl ester, polyvinyl alcohol can be selected prior art and realize.Non-ionic celluloses ether can be hydroxypropyl Any one in methyl cellulose ether, hydroxypropylcelluloether ether or mixing.Maleic anhydride also known as maleic anhydride or dehydration Apple acid anhydrides, normal abbreviation cis-butenedioic anhydride.Potassium peroxydisulfate, inorganic compound, white crystals.Maleic anhydride and potassium peroxydisulfate can promote Enter acryloyl proline methyl ester and non-ionic celluloses ether polymerization, crosslinking, be allowed to pure water with reference to and form hydrogel.Three Hydroxyl glutaric acid（3-Hydroxy glutaric acid）It is generally used for organic synthesis and medicine intermediate, commercially available production can be selected Product are realized.Cerium hydroxide is usually used in doing the principle of cerous nitrate synthesis.In the present invention, trihydroxy glutaric acid and hydroxide are especially added with Cerium, in the presence of the two, stability when can improve moisture low temperature in macromolecule hydrogel system, and it is a large amount of at 50 DEG C or so Water outlet is discharged, to realize fast cooling, and there is certain buffering effect.

Further, its raw material of the flexible seals includes 70-90 parts polyvinyl chloride by weight, 0.1-0.3 parts are received Rice aluminum oxide, 2-6 parts three (dimethylamino) silane, 1-10 part coupling agents.

Polyvinyl chloride, English abbreviation PVC（Polyvinyl chloride), it is VCM（vinyl chloride Monomer, abbreviation VCM）In initiators such as peroxide, azo-compounds；It is or anti-by radical polymerization under light, heat effect Answer the polymer that mechanism is polymerized.The preferred γ crystal formations of nano aluminium oxide, the preferred 10-50nm of particle diameter.Three (dimethylamino) Silane（CAS is numbered：15112-89-7）Commercially available prod can be selected to realize.The coupling agent can be selected prior art and realize, act as With the combined strength bination for being enhancing nano aluminium oxide and polyvinyl chloride.It is of the invention especially to select polyvinyl chloride as the flexible sealing Part, flexible seals easily ftracture after bending state is chronically at because of abrasion, influence air-tightness.Present invention addition is appropriate Nano aluminium oxide and three (dimethylamino) silane be packed into polyvinyl chloride, the anti-wear performance of flexible seals can be obviously improved, Its flexibility is not significantly reduced, so as to improve the reliability of the present invention.

Knot with cushioning effect of the invention by being set between liquid nitrogen plan, outer case, internal box and outer case Structure, can provide for transport, carrying and use of the present invention and stably ensure, avoiding liquid nitrogen plan, internal pressure is not caused by vibrations are rocked The potential safety hazard such as stable.The freezing mode of the refrigerating box of the present invention can make temperature field in internal box more uniform, using use Liquid nitrogen is as refrigerated source so that internal box contains the nitrogen of higher concentration, can play preferable controlled atmosphere effect.

The present invention provides portable example quick freezing and cold preserving case, safety and stability, is convenient for carrying, is easy to use, is adapted to out of doors Cold storage container in sampling process as collection sample.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the local structure schematic diagram of the present invention；

Fig. 3 is the local structure schematic diagram of the present invention；

Fig. 4 is the local structure schematic diagram of the present invention；

Fig. 5 is the local structure schematic diagram of the present invention；

Fig. 6 is the local structure schematic diagram of the present invention；

Fig. 7 is the local structure schematic diagram of the present invention；

Fig. 8 is the local structure schematic diagram of the present invention；

Fig. 9 is the local structure schematic diagram of the present invention；

Figure 10 is the local structure schematic diagram of the present invention.

Embodiment

For the ease of it will be appreciated by those skilled in the art that making below in conjunction with accompanying drawing and embodiment to the present invention further detailed Thin description：

Embodiment 1

A kind of portable example quick freezing and cold preserving case, including casing, freeze proof flexible pipe 4, tell that casing includes outer case 1 and internal box 2, The internal box 2 is inside the outer case 1, it is characterised in that the outer case 1 is additionally provided with liquid nitrogen plan 3, the liquid nitrogen Device 3 is located at the side of the internal box 2；

The outer case 1 is provided with outer case lid 11, and the outer inner side of case lid 11 is symmetrical to be staggeredly provided with elastomer 12 and magnetic block 13；

The internal box 2 is provided with interior case lid 20, and the elastomer 12 offsets with the interior outside of case lid 20, the magnetic block 13 with The outside of interior case lid 20 connects；

The tank wall of the internal box 2 is provided with heat-insulation layer 21, waterproof layer 22, and the waterproof layer 22 is symmetrically set in 21 liang of the heat-insulation layer Side, the interior case lid 20 are sequentially provided with metal level 25, heat-insulation layer 21, waterproof layer 22, the first hollow sandwich 23, the tank floor Be additionally provided with the second hollow sandwich 24, the liquid nitrogen plan 3 by freeze proof flexible pipe 4 respectively with first hollow sandwich 23, second Hollow sandwich 24 connects；The structure of internal box 2 can provide an effective thermal environment for collection sample in the present invention, simultaneously With preferable water resistance.

It in the present invention, can be realized using elastomer 12 and magnetic block 13 by any prior art, pass through the He of elastomer 12 Outer case 1 and internal box 2 are fitted close by magnetic block 13 in upper end, after outer case lid 11 are closed, the elastomer 12 with it is described The interior surface of case lid 20 offsets, and can have certain cushioning effect to the stress of tank surface；The magnetic block 13 can be with internal box 2 Metal level 25 adsorb, limit internal box 2 position, avoid internal box 2 shift influence outer case 1 inside monolithic stability Property.

First hollow sandwich 23 is connected with air jet system 5, and the air jet system 5 includes the first jet structure 51, the Two jet structures 52, the second jet structure 52 are symmetrically set in the both sides of the first jet structure 51；

Second hollow sandwich 24 is arranged with spray orifice 241.

Particularly, freeze proof flexible pipe 4 of the invention can be realized by this area any prior art, and can pass through existing skill In the heat-insulation layer 21 for the side tank wall that the freeze proof flexible pipe 4 is provided at the internal box 2 by art, then it is hollow with described first respectively Interlayer 23, the second hollow sandwich 24 connect.Preferably, the freeze proof flexible pipe 4 and first hollow sandwich 23, the second hollow folder The connectivity part of layer 24 is respectively equipped with plenum member 41, and the plenum member can be realized by any prior art.

In the present invention, open liquid nitrogen plan 3 after, liquid nitrogen fluid by freeze proof flexible pipe 4 respectively enter the first hollow sandwich 23, Second hollow sandwich 24, then sprayed by air jet system 5 from top, spray orifice 241 from bottom, it is ensured that the freezing for gathering sample is uniform Property, effectively increase the pot-life of testing sample.

The first jet structure 51 includes the first connecting tube 511 and the first shower nozzle 512, first connecting tube 511 with The integrally connected of first shower nozzle 512, first shower nozzle 512 are spheroid, and the surface of the first shower nozzle 512 is arranged with through hole 53. In this manner, it can further improve the diffusion profile of frozen liquid.

The second jet structure 52 includes the second connecting tube 521 and the second shower nozzle 522, second connecting tube 521 with Second shower nozzle 522 connects, and second shower nozzle 522 is spheroid, and the surface of the second shower nozzle 522 is arranged with through hole 53；It is described The inside of second shower nozzle 522 is provided with atomization ball 523.Particularly, the atomization ball 523 is that the surface processed by prior art is uniform Talcum provided with through hole 53, the talc lump can reduce the air pressure of the air-flow sprayed from the second shower nozzle 522, while have atomization The effect of diffusion so that distribution of the frozen gas on the top of internal box 2 is more uniform.The atomization ball 523 is that talcum is atomized ball 523, talcum is that in underground long-term physics occurs for other mineral, chemical change forms, and belongs to a kind of " metamorphic mineral ", generally Formed by the rock of magnesium through rotten.The talcum is a kind of highly stable stone material of chemical property, will not be as other stones And acid-base reaction.Secondly, talcum is a kind of non-Porous materials, will not adsorbed gas, also odorless, tasteless itself.In addition, the heat of talcum Capacity is very high, therefore can rapidly cool and maintain temperature.The atomization ball 523 of the present invention can keep the temperature at cooling temperature Degree, avoids the loss of cold, causes the waste of resource.

The horizontal cross-section of the spray orifice 241 is isosceles trapezoid.The shape of the spray orifice 241 can effectively improve bottom flow Air pressure so that freezing is more uniform.

Particularly, the outer case lid 11 realizes that folding connects by hinge arrangement of the prior art, the outer case lid 11 The sealing strip of prior art is provided with the junction of outer case 1, strengthens sealing property；The interior case lid 20 is by of the prior art Hinge arrangement realizes that folding connects, and the interior case lid 20 is provided with the sealing strip of prior art, enhancing sealing with the junction of internal box 2 Performance.

The box house of the internal box 2 is highly set to h, and the length of first connecting tube 511 is 0.28h, and described The length of two connecting tubes 521 is 0.18h.By this setting, the main refrigerated source using the first jet structure 51 as top, the second spray Auxiliary refrigerated source of the depressed structure 52 as top, coordinates with the spray orifice 241 of bottom so that entirely the inner space of internal box 2 is cold Freeze fluid to be uniformly distributed, the freezing uniformity of collection sample can be effectively improved.

The bottom 14 of outer case 1 includes damp-proof layer 141, thermal insulation layer 142, elastomer layer 143, foot pad 144, described heat-insulated Layer 142 is symmetrically set in the both sides of elastomer layer 143, and the damp-proof layer 141 is located at the outside of thermal insulation layer 142, the foot pad 144 are connected located at the bottom 14 of outer case 1 with the damp-proof layer 141.In the present invention, the elastomer layer 143 is existing skill Ethylene octane copolymer layer in art, the ethylene octane copolymer（Polyolefin Elastomer, abbreviation POE）With excellent Different elastic performance, compared with the rubber of traditional chemical crosslinking, the required cost of POE acquisition elasticity is lower, quality is lighter, energy consumption It is lower, to more environment-friendly, be widely used at present auto parts and components, electric wire, machine tool, household articles, toy, The field such as amusement and sporting goods, sole, seal, PUR.The thermal insulation layer 142 is SiO₂Aerogel heat-proof layer 142, The SiO₂Aerogel heat-proof layer 142 can be realized by any prior art.The damp-proof layer 141 can be by of the prior art Barrier material is realized.By the setting of the thermal insulation layer 142, elastomer layer 143 of outer case 1, while the positioning of foot pad 144 is coordinated to consolidate It is fixed, there can be preferable buffering and damping effect；Also there is excellent heat-holding dampproof performance.

Particularly, the outer case 1 is provided with heat insulating coat provided with heat-insulated outside, and the heat insulating coat is SiO₂Aeroge every Hot coating, the SiO₂Aerogel heat-proof coating can be realized by any prior art.The heat of outside can effectively be completely cut off, kept away Exempt from that heat transfer occurs with box house, effectively extend the insulation time limit.

The liquid nitrogen plan 3 includes tank body, and the tank body is provided with exhaust outlet, and the freeze proof flexible pipe 4 is connected with exhaust outlet, The exhaust outlet is provided with valve member, and the valve member includes the components such as atmospheric valve, pressure charging valve, can be any existing by this area There is technology realization.The tank body lower end is provided with base, and the tank body includes outer tank body, inner tank body, and the inner tank body is located at outer tank Internal portion, it is characterised in that the outer tank body lower ending opening, the inner tank body upper end open, the tank body are interior provided with flexible close Sealing, one end of the flexible seals and the upper end of inner tank body connect, in the other end and outer tank body of the flexible seals The upper end connection of side；

Particularly, the flexible seals are coaxially disposed with the tank body.

Further, the flexible seals are the hollow tube-shape seal of side indent.

Further, the wall of the outer tank body is sequentially provided with metal outer wall, macromolecule hydrogel layer, rubber from outside to inside Layer, capillary fringe, aluminium foil layer, metal inner surface, the macromolecule hydrogel layer are high including the first macromolecule hydrogel layer and second Molecule hydrogel layer, the first macromolecule hydrogel layer, the second macromolecule hydrogel layer are symmetrically set in the rubber layer both sides, The capillary fringe penetrates the rubber layer and connects the first macromolecule hydrogel layer and the second macromolecule hydrogel layer, institute State rubber layer and be arranged with through hole 53, the metal inner surface is arranged with neck.Particularly, heretofore described capillary Layer, rubber layer can be realized by this area any prior art, preferably metal capillary, the preferably larger rubber of coefficient of elasticity Rubber layer as the present invention；The macromolecule hydrogel layer is externally provided with macromolecule membrane parcel, and is sticked together by adhesive Macromolecule hydrogel layer surface, the macromolecule membrane can prevent the Water deep leaching of macromolecule hydrogel, evaporation.

Preferably, the rubber layer is thermoplastic elastomer 143, and the thermoplastic elastomer (TPE) 12 is a kind of with rubber High resiliency, high intensity, high resilience, again have can injection molding feature material.With environment-protecting and non-poisonous safety, hardness range Extensively, there are excellent coloring, soft-touch, weatherability, fatigue resistance and temperature tolerance, processing characteristics is superior, can be with without vulcanization Recycling reduces cost, both with the matrix material coating and bonding such as PP, PE, PC, PS, ABS, can also may be used with secondary injection molding With separately formed, there is excellent elastic buffer performance.

Further, the metal inner surface is 9%Ni steel inwalls.Particularly, inner tank body of the invention uses with metal inner surface It is prepared by identical material.By the setting of inner tank body of the present invention and metal inner surface, stable austenitic state, resistance can be kept The tank body size as caused by high and low temperature environment and difference variation changes and bond open is dangerous, improves using and transporting for the present invention Defeated security.

Further, the base include body, the symmetrically arranged second connecting portion in body upper end, the body include according to Arlt's strata, cushion, antibiotic layer, waterproof layer 22, the bottom plate of secondary setting.

The base of the present invention, used arlt's strata are to be interweaved by the string of prior art with organic fiber The tridimensional network of formation, there is high malleable.The antibiotic layer is Fe of the prior art₃O₄- graphene composite antibacterial Layer, the waterproof layer 22 is polyurethane water-proof layer 22 of the prior art, and the bottom plate is high rigidity timber of the prior art Or wood-fibred bottom plate.

The base of the present invention, by the effect of arlt's strata and cushion, there is excellent antidetonation to buffer, while this hair The bottom plate of bright use is netted due to high rigidity timber of the present invention or wood-fibred base plate interior compared with the metallic plate of prior art Fibre structure and there is certain cushioning effect；, being capable of anti-corrosion protection against the tide by the effect of antibiotic layer and waterproof layer 22；In view of this The portable performance of invention, base of the present invention have the advantages of in light weight, will not cause extra burden.

Further, the horizontal cross-section of first projection is circular arc, and the horizontal cross-section of second projection is circular arc, institute The radian for stating the first projection is 1.9 times of the second projection radian.

The present invention has cushioning effect by what is set between liquid nitrogen plan 3, outer case 1, internal box 2 and outer case 1 Structure, can for the present invention transport, carrying and use provide stably ensure, avoid liquid nitrogen plan 3 caused by vibrations are rocked The potential safety hazards such as internal pressure is unstable.The freezing mode of the refrigerating box of the present invention can make in internal box 2 that temperature field is more uniform, adopt By the use of using liquid nitrogen as refrigerated source so that nitrogen of the internal box 2 containing higher concentration, preferable controlled atmosphere effect can be played.

Embodiment 2

The tank wall of the internal box 2 is provided with heat-insulation layer 21, waterproof layer 22, and the waterproof layer 22 is symmetrically set in 21 liang of the heat-insulation layer Side, the interior case lid 20 are sequentially provided with metal level 25, heat-insulation layer 21, waterproof layer 22, the first hollow sandwich 23, the tank floor Be additionally provided with the second hollow sandwich 24, the liquid nitrogen plan 3 by freeze proof flexible pipe 4 respectively with first hollow sandwich 23, second Hollow sandwich 24 connects；

First hollow sandwich 23 is connected with air jet system 5, and the air jet system 5 sprays including the first jet structure 51, second Depressed structure 52, the second jet structure 52 are symmetrically set in the both sides of the first jet structure 51；

Second hollow sandwich 24 is arranged with spray orifice 241.

Particularly, freeze proof flexible pipe 4 of the invention can be realized by this area any prior art, and can pass through existing skill In the heat-insulation layer 21 for the side tank wall that the freeze proof flexible pipe 4 is provided at the internal box 2 by art, then it is hollow with described first respectively Interlayer 23, the second hollow sandwich 24 connect.

The first jet structure 51 includes the first connecting tube 511 and the first shower nozzle 512, first connecting tube 511 with The integrally connected of first shower nozzle 512, first shower nozzle 512 are spheroid, and the surface of the first shower nozzle 512 is arranged with through hole 53.

The second jet structure 52 includes the second connecting tube 521 and the second shower nozzle 522, second connecting tube 521 with Second shower nozzle 522 connects, and second shower nozzle 522 is spheroid, and the surface of the second shower nozzle 522 is arranged with through hole 53；It is described The inside of second shower nozzle 522 is provided with atomization ball 523.Particularly, the atomization ball 523 is that the surface processed by prior art is uniform Talc lump provided with through hole 53, the talc lump can reduce the air pressure of the air-flow sprayed from the second shower nozzle 522, while have mist Change the effect of diffusion so that distribution of the frozen gas on the top of internal box 2 is more uniform.

The horizontal cross-section of the spray orifice 241 is isosceles trapezoid.

The box house of the internal box 2 is highly set to h, and the length of first connecting tube 511 is 0.25h, and described The length of two connecting tubes 521 is 0.15h.

The bottom 14 of outer case 1 includes damp-proof layer 141, thermal insulation layer 142, elastomer layer 143, foot pad 144, described heat-insulated Layer 142 is symmetrically set in the both sides of elastomer layer 143, and the damp-proof layer 141 is located at the outside of thermal insulation layer 142, the foot pad 144 are connected located at the bottom 14 of outer case 1 with the damp-proof layer 141.

The liquid nitrogen plan includes tank body, and the tank body is provided with exhaust outlet 33, and the exhaust outlet connects with freeze proof flexible pipe 4 Connect, the exhaust outlet 33 is provided with valve member 331, and the tank body lower end is provided with base 34, and the tank body includes outer tank body 31, interior Tank body 32, the inner tank body 32 is inside outer tank body 31, it is characterised in that the lower ending opening of outer tank body 31, the inner canister The upper end open of body 32, is provided with flexible seals 35 in the tank body, and one end of the flexible seals 35 is upper with inner tank body 32 End connection, the other end of the flexible seals 35 are connected with the upper end of the inner side of outer tank body 31；

The lower end of outer tank body 31 is provided with first connecting portion 317, and the upper end of base 34 is provided with second connecting portion 346, and described One connecting portion 317 is permanent magnet connecting portion, and the second connecting portion 346 is permanent magnet connecting portion, the first connecting portion 317 with The magnetic of second connecting portion 346 is attracting, and the first connecting portion 317 is connected with second connecting portion 346；

The internal face of the outer tank body 31 is arranged with neck 3161, and the neck 3161 is provided with magnetic absorption layer 1611, institute The outside wall surface for stating inner tank body 32 is arranged with metal fixture block 321, and the neck 3161 is connected with metal fixture block 321；

Particularly, the flexible seals 35 are coaxially disposed with the tank body.

The flexible seals 35 are the hollow tube-shape seal of side indent.

Further, the wall of the outer tank body 31 is sequentially provided with metal outer wall 311, macromolecule hydrogel layer from outside to inside 312nd, rubber layer 313, capillary fringe 314, aluminium foil layer 315, metal inner surface 316, the macromolecule hydrogel layer 312 include first The macromolecule hydrogel layer 3122 of macromolecule hydrogel layer 3121 and second, the first macromolecule hydrogel layer 3121, second are high Molecule hydrogel layer 3122 is symmetrically set in the both sides of rubber layer 313, and the capillary fringe 314 penetrates the rubber layer 313 will The first macromolecule hydrogel layer 3121 is connected with the second macromolecule hydrogel layer 3122, and the rubber layer 313 is arranged with Through hole, the metal inner surface 316 are arranged with neck 31631.Particularly, heretofore described capillary fringe 314, rubber layer 313 can be realized by this area any prior art, preferably metal capillary, and the preferably larger rubber of coefficient of elasticity is used as this The rubber layer 313 of invention；The macromolecule hydrogel layer 312 is externally provided with macromolecule membrane parcel, and the macromolecule membrane can be with Prevent Water deep leaching, the evaporation of macromolecule hydrogel.

Further, the metal inner surface 316 is Ni36 invar alloy inwalls.The Ni36 invar alloy inwalls of use, its Middle Ni36 invar alloy is the face-centred cubic structure containing 36%Ni, is a kind of iron-based Langaloy, its function admirable, have compared with Low hot expansibility, temperature change, and its size is basically unchanged, relatively stable, under normal temperature average coefficient of expansion be 1.6 × 10^-6/ DEG C, the Ni-Fe invar alloy that Ni contents are 36% is maintained to stable austenite shape in as little as -273 DEG C of temperature State.The performance of invar alloy makes it substantially increase the security of transport, invar alloy material when being applied under transporting low temperature environment The tank body of material system can resist the tank body size change as caused by high and low temperature environment and difference variation and bond open danger, improve The safety in utilization of the present invention.

Further, the base 34 includes body, the symmetrically arranged second connecting portion 346 in body upper end, the body Including arlt's strata 341, cushion 342, antibiotic layer 343, waterproof layer 344, the bottom plate 345 set gradually.

Further, the cushion 342 includes EPE plates 3421, the first projection 3422, the second projection 3423, and described the One projection 3422 is on the EPE plates 3421, and for second projection 3423 on the EPE plates 3421, described first is prominent Block 3422 is staggeredly symmetrical arranged in opposite directions with second projection 3423.Particularly, the end and second of first projection 3422 EPE plates 3421 where projection 3423 are provided with spacing, described in the end of second projection 3423 and first projection 3422 EPE plates 3421 offset.

Further, the horizontal cross-section of first projection 3422 is circular arc, the horizontal cross-section of second projection 3423 For circular arc, the radian of first projection 3422 is 1.5 times of the radian of the second projection 3423.

Embodiment 3

Second hollow sandwich 24 is arranged with spray orifice 241.

The horizontal cross-section of the spray orifice 241 is isosceles trapezoid.

The box house of the internal box 2 is highly set to h, and the length of first connecting tube 511 is 0.35h, and described The length of two connecting tubes 521 is 0.22h.

Particularly, the flexible seals 35 are coaxially disposed with the tank body.

The flexible seals 35 are the hollow tube-shape seal of side indent.

Further, the metal inner surface 316 is 5083 aluminium alloy inwalls.

Further, the horizontal cross-section of first projection 3422 is circular arc, the horizontal cross-section of second projection 3423 For circular arc, the radian of first projection 3422 is 2.2 times of the radian of the second projection 3423.

Embodiment 4

The present embodiment provides a kind of portable example quick freezing and cold preserving case, and the present embodiment structure is consistent with embodiment 1, different It is：Described its raw material of Macromolecule glue-line by weight include 5 parts of acryloyl proline methyl esters, 9 parts of polyvinyl alcohol, 0.11 part it is non- Ionic cellulose ethers, 1.2 parts of maleic anhydrides, 0.88 part of potassium peroxydisulfate, 0.04 part of trihydroxy glutaric acid, 0.03 part of hydrogen-oxygen Change cerium and 92 parts of pure water.In the present invention, existing skill can be selected in the raw material such as the acryloyl proline methyl ester, polyvinyl alcohol Art is realized.Non-ionic celluloses ether can be in HPMC ether, hydroxypropylcelluloether ether any one or it is mixed Close.Maleic anhydride also known as maleic anhydride or apple anhydride dehydration, normal abbreviation cis-butenedioic anhydride.Potassium peroxydisulfate, inorganic compound, white Crystallization.Maleic anhydride and potassium peroxydisulfate can promote acryloyl proline methyl ester and non-ionic celluloses ether polymerization, Crosslinking, be allowed to pure water with reference to and form hydrogel.Trihydroxy glutaric acid（3-Hydroxy glutaric acid）It is generally used for Organic synthesis and medicine intermediate, commercially available prod can be selected and realize.Cerium hydroxide is usually used in doing the principle of cerous nitrate synthesis.This hair In bright, trihydroxy glutaric acid and cerium hydroxide are especially added with, in the presence of the two, in macromolecule water-setting when can improve moisture low temperature Stability in colloid system, and water outlets are largely discharged at 50 DEG C or so, to realize fast cooling, and imitated with certain buffering Fruit.

Further, its raw material of the flexible seals by weight include 82 parts of polyvinyl chloride, 0.22 part it is nano oxidized Aluminium, 5 part of three (dimethylamino) silane, 3.7 parts of coupling agents.

Embodiment 5

The present embodiment provides a kind of portable example quick freezing and cold preserving case, and the present embodiment structure is consistent with embodiment 2, unlike： Described its raw material of macromolecule hydrogel layer by weight include 3 parts of acryloyl proline methyl esters, 8 parts of polyvinyl alcohol, 0.07 part it is non- Ionic cellulose ethers, 1 part of maleic anhydride, 0.9 part of potassium peroxydisulfate, 0.04 part of trihydroxy glutaric acid, 0.03 part of hydroxide Cerium and 96 parts of pure water.

Preferably, its raw material of polyvinyl chloride seal described in the present embodiment by weight include 85 parts of polyvinyl chloride, 0.21 part of nano aluminium oxide, 3 part of three (dimethylamino) silane, 5 parts of coupling agents.In the present embodiment, coupling agent selects excellent Aluminate even Join agent.In the present embodiment, after flexible seals can mix each raw materials melt, injection is formed.

Embodiment 6

The present embodiment provides a kind of macromolecule hydrogel layer for the structure of embodiment 2.Its raw material of hydrogel layer wraps by weight Include 3 parts of acryloyl proline methyl esters, 5 parts of polyvinyl alcohol, 0.18 part of non-ionic celluloses ether, 0.6 part of maleic anhydride, 0.4 part of potassium peroxydisulfate, 0.06 part of trihydroxy glutaric acid, 0.04 part of cerium hydroxide and 99 parts of pure water.

Embodiment 7

The present embodiment provides a kind of macromolecule hydrogel layer for the structure of embodiment 3.Its raw material of hydrogel layer wraps by weight Include 5 parts of acryloyl proline methyl esters, 11 parts of polyvinyl alcohol, 0.02 part of non-ionic celluloses ether, 2 parts of maleic anhydrides, 1.4 Part potassium peroxydisulfate, 0.06 part of trihydroxy glutaric acid, 0.02 part of cerium hydroxide and 90 parts of pure water.

Embodiment 8

The present embodiment provides a kind of macromolecule hydrogel layer for the structure of embodiment 3.Its raw material of hydrogel layer wraps by weight Include 6 parts of acryloyl proline methyl esters, 12 parts of polyvinyl alcohol, 0.01 part of non-ionic celluloses ether, 0.5-2 part maleic acids Acid anhydride, 0.3 part of potassium peroxydisulfate, 0.07 part of tartronic acid, 0.05 part of cerium hydroxide and 100 parts of pure water.

Embodiment 9

The present embodiment provides a kind of macromolecule hydrogel layer for the structure of embodiment 1.Its raw material of hydrogel layer wraps by weight Include 2 parts of acryloyl proline methyl esters, 4 parts of polyvinyl alcohol, 0.19 part of non-ionic celluloses ether, 0.5 part of maleic anhydride, 1.5 parts of potassium peroxydisulfates, 0.01 part of trihydroxy glutaric acid, 0.05 part of potassium hydroxide and 100 parts of pure water.

Embodiment 10

The present embodiment provides a kind of polyvinyl chloride seal for the structure of embodiment 2, and its raw material includes 90 parts and gathered by weight Vinyl chloride, 0.3 part of nano aluminium oxide, 2 part of three (dimethylamino) silane, 10 parts of coupling agents.In the present embodiment, coupling agent is silane Coupling agent.

Embodiment 11

The present embodiment provides a kind of polyvinyl chloride seal for the structure of embodiment 2, and its raw material includes 80 parts and gathered by weight Vinyl chloride, 0.1 part of nano aluminium oxide, 6 part of three (dimethylamino) silane, 1 part of coupling agent.

Embodiment 12

The present embodiment provides a kind of polyvinyl chloride seal for the structure of embodiment 2, and its raw material includes 90 parts and gathered by weight Vinyl chloride, 0.3 part of nano aluminium oxide, 10 parts of coupling agents.

Embodiment 13

The present embodiment provides a kind of polyvinyl chloride seal for the structure of embodiment 2, and its raw material is commercially available polyvinyl chloride.

Flexible seals wearability test.

Table 1.

Experimental group	Coefficient of friction（Steel）	Elongation at break（%）
			Embodiment 4	0.15	402
Embodiment 5	0.16	407
			Embodiment 10	0.12	436
Embodiment 11	0.17	405
			Embodiment 12	0.30	417
Embodiment 13	0.28	431

Macromolecule hydrogel moisture holding capacity is tested

The macromolecule hydrogel of embodiment 4- embodiments 9 is chosen, is prepared into the cm of 20 cm × 10 shape（Water content is 100g）.Macromolecule hydrogel is heated with 40 DEG C, 45 DEG C, 50 DEG C of temperature respectively, records the mass change in its 12 minutes.Its As a result as shown in Table 2-4.

The macromolecule hydrogel mass change value of table 2.（40℃）

Experimental group/mass change（g）	3min	6 min	9 min	12 min
					Embodiment 4	-0.7	-1.3	-1.5	-1.5
Embodiment 5	-1.4	-1.7	-2.0	-2.1
					Embodiment 6	-0.3	-0.8	-1.3	-2.2
Embodiment 7	-1.7	-2.9	-5.9	-12.1
					Embodiment 8	-2.0	-3.3	-7.2	-10.6
Embodiment 9	-1.7	-3.0	-6.1	-11.3

The macromolecule hydrogel mass change value of table 3.（45℃）

Experimental group/mass change（g）	3min	6 min	9 min	12 min
					Embodiment 4	-0.7	-1.3	-1.4	-1.6
Embodiment 5	-1.3	-1.8	-2.0	-2.6
					Embodiment 6	-1.1	-1.8	-2.2	-3.0
Embodiment 7	-1.8	-3.0	-6.4	-12.2
					Embodiment 8	-1.9	-3.5	-9.8	-14.5
Embodiment 9	-1.7	-3.3	-7.9	-13.1

The macromolecule hydrogel mass change value of table 4.（50℃）

Experimental group/mass change（g）	3min	6 min	9 min	12 min
					Embodiment 4	-11.7	-14.4	-21.2	-27.8
Embodiment 5	-9.9	-15.6	-20.6	-27.3
					Embodiment 6	-11.3	-17.3	-25.1	-28.5
Embodiment 7	-2.5	-5.3	-10.0	-13.8
					Embodiment 8	-4.1	-7.6	-11.3	-16.7
Embodiment 9	-3.1	-5.7	-10.3	-15.1

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back In the case of spirit or essential attributes from the present invention, the present invention can be realized in other specific forms.Therefore, no matter from which From the point of view of a bit, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention will by appended right Ask rather than described above limits, it is intended that all changes in the implication and scope of the equivalency of claim will be fallen Include in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.It is noted that the technical characteristic not being described in detail in the present invention, can be by appointing One prior art is realized.

Claims

1. a kind of portable example quick freezing and cold preserving case, including casing, freeze proof flexible pipe, tell that casing includes outer case and internal box, The internal box is inside the outer case, it is characterised in that the outer case is additionally provided with liquid nitrogen plan, the liquid nitrogen plan Located at the side of the internal box；

The tank wall of the internal box is provided with heat-insulation layer, waterproof layer, and the waterproof layer is symmetrically set in the heat-insulation layer both sides, described interior Case lid is sequentially provided with metal level, heat-insulation layer, waterproof layer, the first hollow sandwich, and the tank floor is additionally provided with the second hollow sandwich, The liquid nitrogen plan is connected with first hollow sandwich, the second hollow sandwich respectively by freeze proof flexible pipe；

First hollow sandwich is connected with air jet system, and the air jet system includes the first jet structure, the second jet structure, The second jet symmetrical configuration is located at the first jet structure both sides；

Second hollow sandwich is arranged with spray orifice.

2. portable example quick freezing and cold preserving case according to claim 1, it is characterised in that the first jet structure includes First connecting tube and the first shower nozzle, first connecting tube and the first shower nozzle integrally connected, first shower nozzle is spheroid, described First nozzle surface is arranged with through hole.

3. portable example quick freezing and cold preserving case according to claim 2, it is characterised in that the second jet structure includes Second connecting tube and the second shower nozzle, second connecting tube are connected with the second shower nozzle, and second shower nozzle is spheroid, and described second Nozzle surface is arranged with through hole；Atomization ball is provided with inside second shower nozzle.

4. portable example quick freezing and cold preserving case according to claim 1, it is characterised in that the horizontal cross-section of the spray orifice is Isosceles trapezoid.

5. portable example quick freezing and cold preserving case according to claim 3, it is characterised in that the box house of the internal box H is highly set to, the length of first connecting tube is 0.25-0.35h, and the length of second connecting tube is 0.15-0.22h.

6. portable example quick freezing and cold preserving case according to claim 1, it is characterised in that the outer case bottom includes anti- Damp layer, thermal insulation layer, elastomer layer, foot pad, the thermal insulation layer are symmetrically set in the elastomer layer both sides, and the damp-proof layer is located at institute State on the outside of thermal insulation layer, the foot pad is connected located at the outer case bottom with the damp-proof layer.

7. portable example quick freezing and cold preserving case according to claim 1, it is characterised in that the liquid nitrogen plan includes tank Body, the tank body are provided with exhaust outlet, and the exhaust outlet is provided with valve member, and the tank body lower end is provided with base, the tank body Including outer tank body, inner tank body, the inner tank body is inside outer tank body, it is characterised in that the outer tank body lower ending opening, it is described Inner tank body upper end open, the tank body is interior to be provided with flexible seals, and one end of the flexible seals and the upper end of inner tank body connect Connect, the upper end connection on the inside of the other end and outer tank body of the flexible seals；

The internal face of the outer tank body is arranged with neck, and the neck is provided with magnetic absorption layer, the outer wall of the inner tank body Face is arranged with metal fixture block, and the neck is connected with metal fixture block.

8. portable example quick freezing and cold preserving case according to claim 7, it is characterised in that the flexible seals are side The hollow tube-shape seal of indent.

9. portable example quick freezing and cold preserving case according to claim 7, it is characterised in that the wall of the outer tank body is by outer Metal outer wall, macromolecule hydrogel layer, rubber layer, capillary fringe, aluminium foil layer, metal inner surface, the high score are sequentially provided with to interior Sub- hydrogel layer includes the first macromolecule hydrogel layer and the second macromolecule hydrogel layer, the first macromolecule hydrogel layer, Second macromolecule hydrogel layer is symmetrically set in the rubber layer both sides, and the capillary fringe penetrates the rubber layer by described first Macromolecule hydrogel layer and the connection of the second macromolecule hydrogel layer, the rubber layer are arranged with through hole, the metal inner surface pair Title is provided with neck.

10. portable example quick freezing and cold preserving case according to claim 9, it is characterised in that the metal inner surface is 9%Ni Any of steel inwall, Ni36 invar alloy inwall, 5083 aluminium alloy inwalls.