CN101793455A - Copious cooling refrigerator body - Google Patents
Copious cooling refrigerator body Download PDFInfo
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- CN101793455A CN101793455A CN 201010143604 CN201010143604A CN101793455A CN 101793455 A CN101793455 A CN 101793455A CN 201010143604 CN201010143604 CN 201010143604 CN 201010143604 A CN201010143604 A CN 201010143604A CN 101793455 A CN101793455 A CN 101793455A
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- refrigerator body
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- cooling refrigerator
- deep cooling
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Abstract
The invention discloses a copious cooling refrigerator body which comprises a shell, an inner container of the refrigerator body and a top cover of the refrigerator body, wherein a double-layer heat-insulating structure is adopted between the shell and the inner container of the refrigerator body; the first layer near the inner chamber is a vacuum interlayer, and a polyurethane foaming layer, i.e. the second layer is arranged between the first layer and the shell; the inner container of the refrigerator body and the vacuum interlayer are supported by neck tubes; and a radiation protective screen component is arranged at the opening of the inner container of the refrigerator body and is used for shielding heat radiation and heat conduction. The invention effectively inhibits heat transfer in convection and heat conduction modes, and realizes high-efficiency heat insulation. The heat-insulating effect of the copious cooling refrigerator body is equivalent to the heat-insulating effect of the conventional refrigerator body which has the thickness of 150mm and only adopts polyurethane for foaming, thereby avoiding the cracking phenomenon of polyurethane foaming and simultaneously ensuring that the refrigerator body has small volume, light weight and good heat-insulating effect.
Description
Affiliated technical field:
The present invention relates to a kind of deep cooling refrigerator body.The deep cooling refrigerator is mainly used in the midium or long term preservation of the various bioactivators in the fields such as biology, medical research, medical treatment are clinical, agriculture, animal husbandry.The invention belongs to refrigeration and cryogenic engineering field.
Background technology:
The deep cooling refrigerator is the fundamental equipments in modern life science research and the engineering, and along with the rise day by day of life science and biological gene engineering, deep cooling refrigerator product demand is ascendant trend year by year in recent years, and market potential is huge.Sterlin refrigerator adopts a small amount of helium as refrigeration working medium, and whole circulation does not have phase transformation.Because characteristics such as sterlin refrigerator has high efficiency, the pollution of no cold-producing medium, the refrigeration warm area is wide, starting current is low, the easy accent of refrigerating capacity, aspect environmental protection and energy saving, has remarkable advantages, thereby as refrigerator, refrigerator, particularly the low-temperature receiver as the deep cooling refrigerator of low capacity has sizable superiority.
Temperature in the Stirling deep cooling refrigerator body is-100~-180 ℃, be to the maximum more than 200 ℃ with the temperature difference of room temperature environment, polyurethane foam adiabatic method in the conventional refrigerator can not meet the demands, under this cryogenic temperature environment, this mode is not only leaked heat loss to be increased, and be prone to crackle etc., and cause heat insulation capacity to descend, make the temperature in the case be difficult for reaching design objective.
Summary of the invention:
Conventional deep cooling refrigerator body adiabatic heat insulating effect is poor in order to solve, volume weight is big and deficiency such as foaming layer cracking, the object of the present invention is to provide a kind of deep cooling refrigerator body, characteristic such as it has, and adiabatic heat insulating effect is good, volume is little, in light weight, non-foam layer cracking.
The technical solution adopted for the present invention to solve the technical problems comprises: a kind of deep cooling refrigerator body, comprise shell, box liner and casing top cover, describedly between box liner and shell, adopt double insulation structure, ground floor at inner courage is a vacuum interlayer, is the second layer between ground floor and shell---polyurethane foam layer; Box liner and vacuum interlayer adopt neck tube to support.
Opening part at described box liner is provided with the protective shield of radiation assembly, plays shielding heat radiation and heat conducting effect.Vacuum≤the 1Pa of described vacuum interlayer, the thickness of vacuum interlayer are 20-30mm.Vacuum insulation has satisfied the heat insulation requirement of the big temperature difference, has suppressed the heat transmission of convection current and heat-conducting mode, has realized thermal insulation.
The thickness of described polyurethane foam layer is 20-30mm.The polyurethane foam layer has further suppressed the heat transmission of convection current and heat-conducting mode, has further satisfied the heat insulation requirement of the big temperature difference as replenishing of vacuum insulation, realizes thermal insulation.
Can make in tank-volumes that lowest refrigerating temperature remains on-161 in the casing during for 7L.And keep equally in the casing that lowest refrigerating temperature is at-161 ℃, if only adopt the polyurethane foam layer to carry out adiabatic heat-insulation, its thickness needs 150mm.The box weight that the present invention has caused when having avoided only adopting the polyurethane foam layer to carry out adiabatic heat-insulation increases, volume is big and the phenomenon of polyurethane foam layer cracking.
Neck tube is used for the supporting box inner bag, the sealed vacuum interlayer, and the cold head of sterlin refrigerator refrigerating part stretches into the box liner from bottom half by neck tube.Neck tube is made of the corrugated stainless steel tubing of φ 35-45mm, has intensity height, corrosion resistant characteristics.
The vacuum pumping mouth is established in described vacuum interlayer bottom, and described vacuum pumping mouth adopts corrosion resistant stainless steel, and is provided with self-sealing joint.The vacuum pumping mouth is used for vacuum interlayer is evacuated to below the 1Pa.
Described casing top cover fixes on the cabinet shell by hinges fixing, is convenient to the unlatching of casing top cover.
The present invention has adopted a kind of heat insulating construction that satisfies the heat insulation requirement of the big temperature difference, promptly adopted two-layer heat insulating construction between inner bag and shell: what adopt at the ground floor of inner courage is the mode that vacuumizes thermal insulating layer, and what the second layer between ground floor and shell adopted is the adiabatic method of polyurethane foam.Vacuum insulation can satisfy the Thermo Isolation Technique of the heat insulation requirement of the big temperature difference, is to be pumped into high vacuum between inner and outer pipes (vacuum≤1Pa), the heat transmission that vacuum interlayer has effectively suppressed convection current and heat-conducting mode has realized thermal insulation.
The invention has the beneficial effects as follows: owing to adopted the adiabatic heat-insulation technology of vacuum interlayer and polyurethane foam layer composite bed, can make the adiabatic heat insulating effect of deep cooling refrigerator body better, have characteristics such as volume is little, in light weight, the polyurethane foam layer does not ftracture simultaneously, realized that the interior cryogenic temperature of casing is low, the purpose of high insulating effect.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is a structural representation of the present invention.
Among Fig. 1,1 is box liner, and 2 is vacuum interlayer, and 3 is the polyurethane foam layer, and 4 is the protective shield of radiation assembly, and 5 is neck tube, and 6 is the sterlin refrigerator refrigerating part, and 7 is the vacuum pumping mouth, and 8 is the casing top cover, and 9 is hinge.
The specific embodiment
In Fig. 1, deep cooling refrigerator body inner bag is outward a ground floor vacuum interlayer 2, and thickness is 25mm, and vacuum≤1Pa, the thickness of vacuum interlayer are 25mm.Vacuum insulation has satisfied the heat insulation requirement of the big temperature difference, has suppressed the heat transmission of convection current and heat-conducting mode, has realized thermal insulation.Vacuum interlayer 2 is second layer polyurethane foam layers 3, and thickness is 25mm, and the polyurethane foam layer has further suppressed the heat transmission of convection current and heat-conducting mode, has further satisfied the heat insulation requirement of the big temperature difference as replenishing of vacuum insulation, realizes thermal insulation.The housing of each interlayer rolls by stainless steel materials and forms, and the junction all adopts argon arc welding to be tightly connected.The bottom half center is embedded with the corrugated stainless steel tubing of φ 40, and promptly neck tube 5, and is tightly connected with vacuum interlayer 2 inside and outside shell argon arc weldings, its objective is the supporting box inner bag.The cold head of sterlin refrigerator refrigerating part 6 stretches in the box liner to reach the purpose of refrigeration by casing neck tube 5.Box liner 1 opening part is equipped with protective shield of radiation assembly 4, with shielding heat radiation and heat conduction; Casing top cover 8 links to each other with cabinet shell by hinge 9.Cryogenic temperature is-161 ℃ in the casing.
Tank-volumes of the invention process is 7L, and when the refrigeration machine input power was 166.25W, temperature dropped to-100 ℃ of time spent 1min55s from normal temperature in the casing, and this moment, refrigerating capacity was 6.5W, and lowest refrigerating temperature can remain on-161 ℃ in the casing.
Claims (7)
1. deep cooling refrigerator body, comprise shell, box liner (1) and casing top cover (8), it is characterized in that describedly between box liner (1) and shell, adopting double insulation structure, ground floor at inner courage is vacuum interlayer (2), is the second layer between ground floor and shell---polyurethane foam layer (3); Box liner (1) and vacuum interlayer (2) adopt neck tube (5) to support.
2. deep cooling refrigerator body according to claim 1 is characterized in that being provided with protective shield of radiation assembly (4) at the opening part of described box liner.
3. deep cooling refrigerator body according to claim 1 is characterized in that the vacuum≤1Pa of described vacuum interlayer (2), and the thickness of vacuum interlayer (2) is 20-30mm.
4. deep cooling refrigerator body according to claim 1, the thickness that it is characterized in that described polyurethane foam layer (3) is 20-30mm.
5. deep cooling refrigerator body according to claim 1 is characterized in that described neck tube (5) adopts the corrugated stainless steel tubing of φ 35-45mm to make.
6. deep cooling refrigerator body according to claim 1 and 2 is characterized in that establishing vacuum pumping mouth (7) bottom the described vacuum interlayer (2), and described vacuum pumping mouth (7) adopts stainless steel, and is provided with self-sealing joint.
7. deep cooling refrigerator body according to claim 1 is characterized in that described casing top cover (8) is fixed on the cabinet shell by hinge (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201010143604 CN101793455A (en) | 2010-04-08 | 2010-04-08 | Copious cooling refrigerator body |
Applications Claiming Priority (1)
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CN 201010143604 CN101793455A (en) | 2010-04-08 | 2010-04-08 | Copious cooling refrigerator body |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102997555A (en) * | 2012-12-18 | 2013-03-27 | 苏州麦克食品机械塑胶有限公司 | Intelligent control food processing and refrigerating equipment |
CN103090615A (en) * | 2011-11-02 | 2013-05-08 | Lg电子株式会社 | Refrigerator |
CN104764278A (en) * | 2015-04-22 | 2015-07-08 | 天津商业大学 | Vacuum thermal insulation house body used for ultralow temperature refrigeration house |
US9207010B2 (en) | 2011-11-02 | 2015-12-08 | Lg Electronics Inc. | Refrigerator |
US9377227B2 (en) | 2011-11-04 | 2016-06-28 | Lg Electronics Inc. | Refrigerator with vacuum insulation housing a liquid-gas interchanger |
US9528749B2 (en) | 2011-11-02 | 2016-12-27 | Lg Electronics Inc. | Refrigerator |
CN109556337A (en) * | 2018-12-03 | 2019-04-02 | 天津市热处理研究所有限公司 | A kind of dual chamber cryogenic treatment apparatus |
CN114440523A (en) * | 2022-01-18 | 2022-05-06 | 上海少卿白鞘医疗科技有限公司 | Medicament transportation is with depositing case of transporting |
CN115183523A (en) * | 2022-06-16 | 2022-10-14 | 西安交通大学 | Refrigerator cabinet door and deep cooling refrigerator |
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Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10082328B2 (en) | 2011-11-02 | 2018-09-25 | Lg Electronics Inc. | Refrigerator |
US9528749B2 (en) | 2011-11-02 | 2016-12-27 | Lg Electronics Inc. | Refrigerator |
US11732953B2 (en) | 2011-11-02 | 2023-08-22 | Lg Electronics Inc. | Refrigerator |
US11313613B2 (en) | 2011-11-02 | 2022-04-26 | Lg Electronics Inc. | Refrigerator |
US9228775B2 (en) | 2011-11-02 | 2016-01-05 | Lg Electronics Inc. | Refrigerator |
US10514197B2 (en) | 2011-11-02 | 2019-12-24 | Lg Electronics Inc. | Refrigerator |
CN103090615B (en) * | 2011-11-02 | 2016-12-21 | Lg电子株式会社 | Refrigerator |
US9207010B2 (en) | 2011-11-02 | 2015-12-08 | Lg Electronics Inc. | Refrigerator |
US11802728B2 (en) | 2011-11-02 | 2023-10-31 | Lg Electronics Inc. | Refrigerator |
CN103090615A (en) * | 2011-11-02 | 2013-05-08 | Lg电子株式会社 | Refrigerator |
US11698211B2 (en) | 2011-11-04 | 2023-07-11 | Lg Electronics Inc. | Refrigerator with vacuum insulation housing a heat interchanger |
US9377227B2 (en) | 2011-11-04 | 2016-06-28 | Lg Electronics Inc. | Refrigerator with vacuum insulation housing a liquid-gas interchanger |
US10228169B2 (en) | 2011-11-04 | 2019-03-12 | Lg Electronics Inc. | Refrigerator with vacuum insulation housing a heat interchanger |
CN102997555A (en) * | 2012-12-18 | 2013-03-27 | 苏州麦克食品机械塑胶有限公司 | Intelligent control food processing and refrigerating equipment |
CN104764278A (en) * | 2015-04-22 | 2015-07-08 | 天津商业大学 | Vacuum thermal insulation house body used for ultralow temperature refrigeration house |
CN109556337A (en) * | 2018-12-03 | 2019-04-02 | 天津市热处理研究所有限公司 | A kind of dual chamber cryogenic treatment apparatus |
CN114440523A (en) * | 2022-01-18 | 2022-05-06 | 上海少卿白鞘医疗科技有限公司 | Medicament transportation is with depositing case of transporting |
CN115183523A (en) * | 2022-06-16 | 2022-10-14 | 西安交通大学 | Refrigerator cabinet door and deep cooling refrigerator |
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Open date: 20100804 |