CN104110927A - Frosting-proof air pressure balance structure on low-temperature equipment - Google Patents
Frosting-proof air pressure balance structure on low-temperature equipment Download PDFInfo
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- CN104110927A CN104110927A CN201410220453.5A CN201410220453A CN104110927A CN 104110927 A CN104110927 A CN 104110927A CN 201410220453 A CN201410220453 A CN 201410220453A CN 104110927 A CN104110927 A CN 104110927A
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Abstract
The invention provides a frosting-proof air pressure balance structure on low-temperature equipment. The problem that due to the fact that cryogenic temperature of an inner cavity of existing refrigeration equipment is too low to generate the large pressure difference with the outside, a door is hard to open is solved. The frosting-proof air pressure balance structure on the low-temperature equipment comprises a box door on a refrigeration box, the box door is provided with a door sheet, a foaming heat preservation layer is arranged in the door sheet, a dew prevention pipe is arranged in the foaming heat preservation layer, an air pressure balance valve is arranged beside the dew prevention pipe, the inner end of the air pressure balance valve is communicated with an inner cavity of the refrigeration box, the other end of the air pressure balance valve is communicated with the outside air, a one-way valve element is arranged in the air pressure balance valve, only the outside air is allowed by the one-way valve element to enter the inner cavity of the refrigeration box, and refrigeration gas in the inner cavity is forbidden from being leaked to the outside. The internal and external pressure difference of the box is balanced through the air pressure balance valve, and meanwhile cold leakage in the box is avoided. Meanwhile, heat of the dew prevention pipe is used for eliminating the frosting phenomenon to guarantee that the air pressure balance valve is smooth, and it is guaranteed that the box door is easy to open all the time.
Description
Technical field
The invention belongs to technical field of refrigeration equipment, relate to a kind of air-pressure balancing device, particularly a kind of air pressure balance structure for antifrost in Cryo Equipment.
Background technology
Refrigeration plant is refrigerating operation equipment used.Different refrigerating methods use different equipment, and at present most widely used is vapor compression refrigeration, and its capital equipment has compressor, condenser, evaporimeter and choke valve.Compressor is for compression and refrigerant conveying steam, wherein with piston type and centrifugal most widely used.
Along with scientific and technological progress, refrigeration no longer only rests on the aspect of-20 DEG C of domestic refrigerators, and lower temperature :-40 DEG C～-60 DEG C low temperature,-86 DEG C of ultralow temperature, the use development at home and abroad of-150 DEG C of profound hypothermias rapidly, but too low by cryogenic temperature, and produce the considerable low-temperature storage box difficult technical barrier that opens the door.The difficult technical reason that opens the door is, due to the temperature inside the box low (being generally-60～-150 DEG C), while opening the door, heat enters cold loss in case, when more at closing time the gas temperature in refrigerator reduce, gas pressure intensity reduces, according to principle of expanding with heat and contracting with cold, ambient pressure is greater than case internal gas pressure, and produce larger pressure differential, cause and be difficult to door body again to open, and then cannot obtain at short notice article in case.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, propose a kind of air pressure double-beat drop valve that utilizes and eliminated the inside and outside draught head of casing, utilized dew eliminating tube heat supply and prevent that air pressure double-beat drop valve from producing the air pressure balance structure for antifrost in Cryo Equipment of frost.
Object of the present invention can realize by following technical proposal: for the air pressure balance structure of antifrost in Cryo Equipment, comprise the chamber door being positioned on refrigeration casing, described chamber door has door-plate, and insulating foam layer is set in door-plate, in described insulating foam layer, dew eliminating tube is set, the side of described dew eliminating tube arranges air pressure double-beat drop valve, the inner of described air pressure double-beat drop valve is communicated with the inner chamber of refrigeration casing, the outer end of described air pressure double-beat drop valve communicates with ambient atmosphere, in described air pressure double-beat drop valve, nonreturn valve core is set, described nonreturn valve core only allows ambient atmosphere to enter the inner chamber of refrigeration casing, and the refrigerant gas of forbidding inner chamber leaks to the external world.
This,, for the air pressure balance structure of antifrost in Cryo Equipment, realizes the thermal insulation function to refrigeration case intracoelomic cavity by the insulating foam layer in chamber door.By the one-way flow effect of air pressure double-beat drop valve, realize the pressure balance of refrigeration case inside and outside, effectively prevent that the cold of refrigeration case intracoelomic cavity runs off simultaneously.Because the edge of chamber door there will be globule phenomenon at wet weather, so designed dew eliminating tube in chamber door edge, and dew eliminating tube is connected with condenser.In Cryo Equipment process of refrigerastion, the cold-producing medium of gases at high pressure shape can flow through from this pipeline, produces heat thus and makes condenser pipe heating, and object is not allow chamber door edge occur the globule, plays anti-dew, except dew effect.Because manufacturing supercooling temperature in refrigeration casing, and when being entered by air pressure double-beat drop valve, outside air just catches a cold, and then airborne moisture is easily freezing in the external port place frosting of air pressure double-beat drop valve, the external port that after a period of time, frost can closed air balanced valve, and then block the one-way flow of air pressure double-beat drop valve, cause equilibrium air pressure effect to be lost, chamber door is difficult to open again.Therefore the installation site of air pressure double-beat drop valve is close to dew eliminating tube, utilize heat that dew eliminating tube distributes to promote the external port temperature of air pressure double-beat drop valve, and then eliminate outside air to catch a cold while entering and phenomenon that frosting is freezed, to guarantee that air pressure double-beat drop valve is spacious logical, effectively realizes one-way flow effect.
Above-mentioned for Cryo Equipment on the air pressure balance structure of antifrost, it is stifled that the periphery of described air pressure double-beat drop valve is socketed with rubber, described rubber is stifled together to be embedded in insulating foam layer with air pressure double-beat drop valve.The stifled periphery of rubber and chamber door adopt interference fit, and interior week and air pressure double-beat drop valve adopt interference fit.Form and be closely connected between air pressure double-beat drop valve and chamber door by stifled the making of rubber is set, to improve the reliable fastness of assembling.
Above-mentioned for Cryo Equipment on the air pressure balance structure of antifrost, described dew eliminating tube and air pressure double-beat drop valve are all arranged at the top of chamber door, the external port inlay card of described air pressure double-beat drop valve is on the edge of chamber door top side.
Above-mentioned for Cryo Equipment on the air pressure balance structure of antifrost, described dew eliminating tube connects the condenser that is positioned at refrigeration case body.
Above-mentioned for Cryo Equipment on the air pressure balance structure of antifrost, on the inside edge of described chamber door, sealing strip is set.
Compared with prior art, this air pressure balance structure for antifrost in Cryo Equipment is set up air pressure double-beat drop valve on door body, and by the air pressure double-beat drop valve unilaterally connected external world and cabinets cavity, balance box inside and outside differential pressure thus prevents cold draining in case simultaneously; Synchronously air pressure double-beat drop valve is arranged near dew eliminating tube, utilizes the heat of dew eliminating tube to eliminate frost, to ensure the spacious logical of air pressure double-beat drop valve, guarantee chamber door easily unlatching all the time, further facilitate and pick and place thing operation, promote user's experience.
Brief description of the drawings
Fig. 1 is this external structure schematic diagram for the air pressure balance structure of antifrost in Cryo Equipment.
Fig. 2 is the local structure for amplifying schematic diagram of this Fig. 1 for the air pressure balance structure of antifrost in Cryo Equipment.
Fig. 3 is this inside structure for amplifying schematic diagram for the air pressure balance structure of antifrost in Cryo Equipment.
Fig. 4 is this overall structure schematic diagram for the air pressure balance structure of antifrost in Cryo Equipment.
In figure, 1, refrigeration casing; 2, chamber door; 3, dew eliminating tube; 4, air pressure double-beat drop valve; 5, rubber is stifled; 6, sealing strip.
Detailed description of the invention
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Fig. 1,2,3 and 4, this air pressure balance structure for antifrost in Cryo Equipment comprises the chamber door 2 being positioned on refrigeration casing 1, interior dew eliminating tube 3 and the air pressure double-beat drop valve 4 of arranging of chamber door 2.
Sealing strip 6 is set on the inside edge of chamber door 2, in the time that chamber door 2 and refrigeration casing 1 are closed, plays the effect of sealing crack between a door and its frame by sealing strip 6.
Chamber door 2 has door-plate, and in door-plate, insulating foam layer is set, and realizes the thermal insulation function to refrigeration casing 1 inner chamber by insulating foam layer.Dew eliminating tube 3 is set in insulating foam layer, and dew eliminating tube 3 connects the condenser that is positioned at refrigeration case body 1.The side of dew eliminating tube 3 arranges air pressure double-beat drop valve 4, and the periphery of air pressure double-beat drop valve 4 is socketed with rubber and blocks up 5, and rubber stifled 5 together embeds in insulating foam layer with air pressure double-beat drop valve 4.Stifled 5 peripheries of rubber and chamber door 2 adopt interference fit, and interior week and air pressure double-beat drop valve 4 adopt interference fit.By being set, rubber stifled 5 makes to form and be closely connected between air pressure double-beat drop valve 4 and chamber door 2, to improve the reliable fastness of assembling.
The inner of air pressure double-beat drop valve 4 is communicated with the inner chamber of refrigeration casing 1, and the outer end of air pressure double-beat drop valve 4 communicates with ambient atmosphere.The interior nonreturn valve core that arranges of air pressure double-beat drop valve 4, this nonreturn valve core only allows ambient atmosphere to enter the inner chamber of refrigeration casing 1, and forbids that the refrigerant gas of inner chamber leaks to the external world.
Dew eliminating tube 3 and air pressure double-beat drop valve 4 are all arranged at the top of chamber door 2, and the external port inlay card of air pressure double-beat drop valve 4 is on the edge of chamber door 2 top sides.
This action principle for the air pressure balance structure of antifrost in Cryo Equipment is, by the one-way flow effect of air pressure double-beat drop valve 4, realizes the inside and outside pressure balance of refrigeration casing 1, and the cold of casing 1 inner chamber that effectively prevents from freezing runs off simultaneously.Because the edge of chamber door 2 there will be globule phenomenon at wet weather, so designed dew eliminating tube 3 in chamber door 2 edges, and dew eliminating tube 3 is connected with condenser.In Cryo Equipment process of refrigerastion, the cold-producing medium of gases at high pressure shape can flow through from this pipeline, produces heat thus and makes condenser pipe heating, and object is not allow chamber door 2 edges occur the globule, plays anti-dew, except dew effect.Because of the interior manufacture supercooling temperature of refrigeration casing 1, and when being entered by air pressure double-beat drop valve 4, outside air just catches a cold, and then airborne moisture is easily freezing in the external port place frosting of air pressure double-beat drop valve 4, the external port that after a period of time, frost can closed air balanced valve 4, and then block the one-way flow of air pressure double-beat drop valve 4, cause equilibrium air pressure effect to be lost, chamber door 2 is difficult to open again.Therefore the installation site of air pressure double-beat drop valve 4 is close to dew eliminating tube 3, utilize heat that dew eliminating tube 3 distributes to promote the external port temperature of air pressure double-beat drop valve 4, and then eliminate outside air to catch a cold while entering and phenomenon that frosting is freezed, to guarantee that air pressure double-beat drop valve 4 is spacious logical, effectively realizes one-way flow effect.
The use procedure of refrigeration plant is: in the time opening the door, heat enters in case and cold runs off.Close behind the door, in case, cold increases, and air pressure reduces to be less than external atmosphere pressure, and outside air enters in case by the air pressure double-beat drop valve 4 of one-way flow, remains thus case internal pressure and ambient pressure balance.When after case internal pressure and ambient pressure balance, air pressure double-beat drop valve 4 is closed.When case internal pressure is greater than external atmosphere pressure for a certain reason, due to the unidirectional principle of air pressure double-beat drop valve 4, can not leak outside and pin cold air, ensure that cold does not run off to guarantee cryogenic temperature.Air pressure double-beat drop valve 4 is pressed close to the dew eliminating tube 3 on casing, because the temperature of dew eliminating tube 3 is high, can ensure that the gas entering in case by air pressure double-beat drop valve 4 is unlikely to condensation frosting again.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used refrigeration casing 1 herein; Chamber door 2; Dew eliminating tube 3; Air pressure double-beat drop valve 4; Rubber stifled 5; Sealing strip 6 terms such as grade, but do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (5)
1. for the air pressure balance structure of antifrost in Cryo Equipment, comprise the chamber door being positioned on refrigeration casing, described chamber door has door-plate, and insulating foam layer is set in door-plate, it is characterized in that, in described insulating foam layer, dew eliminating tube is set, the side of described dew eliminating tube arranges air pressure double-beat drop valve, the inner of described air pressure double-beat drop valve is communicated with the inner chamber of refrigeration casing, the outer end of described air pressure double-beat drop valve communicates with ambient atmosphere, in described air pressure double-beat drop valve, nonreturn valve core is set, described nonreturn valve core only allows ambient atmosphere to enter the inner chamber of refrigeration casing, and the refrigerant gas of forbidding inner chamber leaks to the external world.
2. the air pressure balance structure for antifrost in Cryo Equipment according to claim 1, is characterized in that, it is stifled that the periphery of described air pressure double-beat drop valve is socketed with rubber, and described rubber is stifled together to be embedded in insulating foam layer with air pressure double-beat drop valve.
3. the air pressure balance structure for antifrost in Cryo Equipment according to claim 1, is characterized in that, described dew eliminating tube and air pressure double-beat drop valve are all arranged at the top of chamber door, and the external port inlay card of described air pressure double-beat drop valve is on the edge of chamber door top side.
4. according to the air pressure balance structure for antifrost in Cryo Equipment described in claim 1 or 2 or 3, it is characterized in that, described dew eliminating tube connects the condenser that is positioned at refrigeration case body.
5. according to the air pressure balance structure for antifrost in Cryo Equipment described in claim 1 or 2 or 3, it is characterized in that, on the inside edge of described chamber door, sealing strip is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220453.5A CN104110927A (en) | 2014-05-23 | 2014-05-23 | Frosting-proof air pressure balance structure on low-temperature equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220453.5A CN104110927A (en) | 2014-05-23 | 2014-05-23 | Frosting-proof air pressure balance structure on low-temperature equipment |
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| CN104110927A true CN104110927A (en) | 2014-10-22 |
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| CN201410220453.5A Pending CN104110927A (en) | 2014-05-23 | 2014-05-23 | Frosting-proof air pressure balance structure on low-temperature equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157321A (en) * | 2015-08-18 | 2015-12-16 | 合肥华凌股份有限公司 | Ventilated frost reduction device, door body and freezer with door body |
| CN105783380A (en) * | 2016-04-11 | 2016-07-20 | 海信容声(广东)冷柜有限公司 | Air pressure balancing device and refrigeration device |
| CN105889582A (en) * | 2016-04-18 | 2016-08-24 | 吴楠 | Automatic air pressure balancing valve core and balancing valve |
| CN111981746A (en) * | 2020-08-26 | 2020-11-24 | 中科美菱低温科技股份有限公司 | Air pressure balance assembly and medical refrigeration equipment |
| CN112722584A (en) * | 2020-12-18 | 2021-04-30 | 唐艳琼 | Give birth to bright packing carton that transports |
| CN113669938A (en) * | 2021-07-27 | 2021-11-19 | 澳柯玛股份有限公司 | Refrigerator refrigeration and self-cleaning control method |
| CN117515237A (en) * | 2024-01-04 | 2024-02-06 | 珠海格力电器股份有限公司 | Balancing valve, refrigerating device and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397620B1 (en) * | 2000-11-06 | 2002-06-04 | Spx Corporation | Ultra-low temperature freezer cabinet utilizing vacuum insulated panels |
| CN101512264A (en) * | 2006-08-29 | 2009-08-19 | Bsh博世和西门子家用器具有限公司 | Refrigerator with a pressure-compensation valve |
| CN203980776U (en) * | 2014-05-23 | 2014-12-03 | 青岛澳柯玛超低温冷冻设备有限公司 | For the air pressure balance structure of antifrost in Cryo Equipment |
-
2014
- 2014-05-23 CN CN201410220453.5A patent/CN104110927A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397620B1 (en) * | 2000-11-06 | 2002-06-04 | Spx Corporation | Ultra-low temperature freezer cabinet utilizing vacuum insulated panels |
| CN101512264A (en) * | 2006-08-29 | 2009-08-19 | Bsh博世和西门子家用器具有限公司 | Refrigerator with a pressure-compensation valve |
| CN203980776U (en) * | 2014-05-23 | 2014-12-03 | 青岛澳柯玛超低温冷冻设备有限公司 | For the air pressure balance structure of antifrost in Cryo Equipment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157321A (en) * | 2015-08-18 | 2015-12-16 | 合肥华凌股份有限公司 | Ventilated frost reduction device, door body and freezer with door body |
| CN105783380A (en) * | 2016-04-11 | 2016-07-20 | 海信容声(广东)冷柜有限公司 | Air pressure balancing device and refrigeration device |
| CN105783380B (en) * | 2016-04-11 | 2018-03-30 | 海信容声(广东)冷柜有限公司 | A kind of air-pressure balancing device and refrigerating plant |
| CN105889582A (en) * | 2016-04-18 | 2016-08-24 | 吴楠 | Automatic air pressure balancing valve core and balancing valve |
| CN111981746A (en) * | 2020-08-26 | 2020-11-24 | 中科美菱低温科技股份有限公司 | Air pressure balance assembly and medical refrigeration equipment |
| CN112722584A (en) * | 2020-12-18 | 2021-04-30 | 唐艳琼 | Give birth to bright packing carton that transports |
| CN113669938A (en) * | 2021-07-27 | 2021-11-19 | 澳柯玛股份有限公司 | Refrigerator refrigeration and self-cleaning control method |
| CN117515237A (en) * | 2024-01-04 | 2024-02-06 | 珠海格力电器股份有限公司 | Balancing valve, refrigerating device and control method |
| CN117515237B (en) * | 2024-01-04 | 2024-04-02 | 珠海格力电器股份有限公司 | Balancing valve, refrigerating device and control method |
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Application publication date: 20141022 |
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| RJ01 | Rejection of invention patent application after publication |