CN207395270U - Liquid nitrogen frozen case - Google Patents
Liquid nitrogen frozen case Download PDFInfo
- Publication number
- CN207395270U CN207395270U CN201721328561.XU CN201721328561U CN207395270U CN 207395270 U CN207395270 U CN 207395270U CN 201721328561 U CN201721328561 U CN 201721328561U CN 207395270 U CN207395270 U CN 207395270U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- case
- babinet
- box
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 40
- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 239000006260 foam Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 239000011229 interlayer Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Abstract
Liquid nitrogen frozen case utilizes liquid nitrogen cryogenics characteristic principle, using liquid nitrogen refrigerating, liquid nitrogen in metal box, the temperature of metal box outer surface is reduced by way of conduction, the outer surface of metal box low temperature is contacted with air in case, air themperature in case is reduced, is conducive to the remote express transportation of frozen product cargo.Using liquid nitrogen refrigerating, to obtain optimal refrigerating effect.
Description
Technical field：Freezing
Existing technical background：Foam insulation box
Purpose：Liquid nitrogen frozen, cooling time is long, solves that the freezing of remote express transportation is bad to cause what kinds of goods went bad to ask
Topic.
Content：Household freezer utilizes liquid nitrogen cryogenics characteristic, and the metal vessel surface that liquid nitrogen contacts is made to reduce temperature, passes through conduction
The temperature inside the box is reduced with convection type.
Conventional foam incubator is when shipment freezes commodity, because hot weather road, remote, haulage time length in way etc. on the way
Reason, the temperature in incubator are raised with the rise of environment temperature, and heat insulation effect is decreased obviously, the commodity in incubator because
The rise of temperature and melt or even some kinds of goods go bad rotten, bring irremediable economic loss, some also generations to businessman
Civil law dispute.
For this purpose, it is thought that a method, exactly toward ice cube is added in foam insulation box, in the hope of reaching better cooling
Effect, still, in practice it has proved that, this method cannot still solve the problems, such as long distance transportation, and still remain that kinds of goods go bad shows
As.This is the problem of businessman's long distance transportation freezes goods most headache and the current mad express delivery industry most thorny issue to emerge.Pin
To this problem, what is to be done for weIt is defeated which type of effective measures we should take thoroughly solve remote jelly shipping
Problem
Liquid nitrogen, the nitrogen of liquid.It is inert, colourless, odorless, nothingCorrosivity, non-combustible, temperature is extremely low.Nitrogen constitutes
The major part (volume ratio 78.03%, weight ratio 75.5%) of air.Nitrogen is inactive, does not support to burn.It is largely inhaled during vaporization
Thermo-contact causes frostbite.
Under normal pressure, liquid nitrogen temperature is -196 DEG C；1 cubic metre of liquid nitrogen can be expanded to 696 cubic metres 21 DEG C of pure gas
State nitrogen.Liquid nitrogen is colourless, tasteless, liquids and gases of low temperature under high pressure.Liquid nitrogen (is often written as LN2), be nitrogen at low temperature
The liquid form of formation.The boiling point of nitrogen is -196 DEG C, if temperature will form liquid nitrogen below this at normal atmospheric pressure；Such as
Fruit is pressurizeed, and can obtain liquid nitrogen at higher temperatures.
According to this low-temperature characteristics of liquid nitrogen, this special nature of liquid nitrogen is applied on household freezer.In household freezer
Four liquid nitrogen boxes are placed in side, and the temperature of metal box outer surface, the appearance of metal box low temperature are reduced by way of conduction
Face is contacted with air in case, reduces air themperature in case.As shown in the figure, black bar block is exactly liquid nitrogen box, cross hatch is
Hard-foam polyurethane thermal insulation material, the surfaces externally and internally of babinet is plastic material.Babinet internal diameter size is (long for 60cm × 40cm × 35cm
× wide × high), other sizes can also be designed to according to actual needs.The position that case lid is contacted with babinet is equipped with sealing strip, rises
To better sealing process, cool air leakage in case is prevented.
In conclusion more preferable using the jelly goods haybox cooking effect of liquid nitrogen refrigerating, it is defeated to be more suitable for freezing at a distance shipping,
Freezing express delivery, shipping is defeated more flexibly, and fast, facility more fully meets the allegro life requirement of current people.
Advantage and good effect：Liquid nitrogen refrigerating is long with cooling time, and cryogenic effect is notable, and liquid nitrogen frozen case freezes to be long-range
Shipping is defeated to provide guarantee.
Description of the drawings：Fig. 1 is the plan view of liquid nitrogen frozen case.
Embodiment and optimum implementation：The liquid nitrogen box that the inside of liquid nitrogen frozen case is equipped with can be according to cargo requirement
Temperature freely adjust the quantity of liquid nitrogen box, the quantity of liquid nitrogen box can be increased when necessary in the case, with better
Meet the needs of frozen product long-distance transport.
Claims (1)
1. liquid nitrogen frozen case：Babinet is cuboid, and internal diameter size is bottom side length：60cm, base are wide：40cm, internal diameter height are
35cm；The wall thickness of babinet is 1cm；Tank material is three-layer structure：Ectonexine is plastics；Interlayer is hard-foam polyurethane thermal insulating material
Material；One liquid nitrogen box is installed per side wall, altogether liquid nitrogen box there are four installation on the side wall of babinet, filled with liquid nitrogen in box；Liquid
Nitrogen box is mounted on the medium position of side wall；The position that case lid is contacted with babinet is equipped with sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328561.XU CN207395270U (en) | 2017-09-27 | 2017-09-27 | Liquid nitrogen frozen case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328561.XU CN207395270U (en) | 2017-09-27 | 2017-09-27 | Liquid nitrogen frozen case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395270U true CN207395270U (en) | 2018-05-22 |
Family
ID=62332007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721328561.XU Active CN207395270U (en) | 2017-09-27 | 2017-09-27 | Liquid nitrogen frozen case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207395270U (en) |
-
2017
- 2017-09-27 CN CN201721328561.XU patent/CN207395270U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |