CN103384460A - Condensation preventing equipment cabinet with renewable metal matrix solid desiccant - Google Patents

Condensation preventing equipment cabinet with renewable metal matrix solid desiccant Download PDF

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Publication number
CN103384460A
CN103384460A CN 201310327198 CN201310327198A CN103384460A CN 103384460 A CN103384460 A CN 103384460A CN 201310327198 CN201310327198 CN 201310327198 CN 201310327198 A CN201310327198 A CN 201310327198A CN 103384460 A CN103384460 A CN 103384460A
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CN
China
Prior art keywords
cabinet
condensation
rack
renewable
drier
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.)
Withdrawn
Application number
CN 201310327198
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Chinese (zh)
Inventor
代彦军
葛天舒
郝瑞英
赵耀
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Shanghai Jiaotong University
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Shanghai Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN 201310327198 priority Critical patent/CN103384460A/en
Publication of CN103384460A publication Critical patent/CN103384460A/en
Withdrawn legal-status Critical Current

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Abstract

The invention provides a condensation preventing equipment cabinet with renewable metal matrix solid desiccant. The condensation preventing equipment cabinet comprises a cabinet body; a renewable solid desiccant coating layer which is arranged in the cabinet body is coated on the inner wall of the cabinet body directly; or the condensation preventing equipment cabinet comprises a desiccant plate module; the desiccant plate module which is provided with a renewable solid desiccant coating layer is arranged in the cabinet body. The condensation preventing equipment cabinet with the renewable metal matrix solid desiccant has the advantages of being capable of achieving a moisture absorption and regeneration cycle mode due to a method of the solid desiccant coating layer and accordingly enabling the solid desiccant coating layer to perform moisture absorption and regeneration continuously and thoroughly solving the problem of condensation prevention of passive equipment cabinets; causing small influence on production lines of the existing outdoor equipment cabinets and being green and environmentally friendly in condensation prevention and regeneration method; being completely suitable for outdoor occasion placement due to the facts that the solid desiccant coating layer can be recycled and the performance of moisture absorption and liberation is stable.

Description

The anti-condensation rack of recycled metal base solid drier
Technical field
The present invention relates to a kind of anti-condensation outdoor cabinet, specifically a kind of rack that utilizes renewable solid drier moisture absorption to prevent the condensation generation, by solid drier being coated on outdoor passive rack metallic interior surface, prevent thereby reach to dehumidify the purpose that condensation produces.
Background technology
Outdoor cabinet refers to directly be under the natural climate impact, made by metal or nonmetallic materials, do not allow the lack of competence operator to enter the cabinet of operation, the equipment of outdoor Physics Work environment and safety system is provided for radio communication website or cable network site works station.But mounted base station equipment, power-supply device, electronic transmission devices etc. in rack, the reliability of electronic product is more and more important, outdoor cabinet produces condensation can cause metal device corrosion and electrical apparatus insulation hydraulic performance decline, gently produce electric leakage and loose contact, heavy cause short circuit and burn parts, be the major reason of potential safety hazard when causing operation.
During lower than the body surface of dew point temperature, the air of contact-making surface is cooled to dew point temperature to humid air in contact, and the relative humidity of humid air reaches 100%, continues to descend as temperature, will have condensate to separate out, i.e. so-called surface sweating.For the outdoor electricity distribution rack that is placed in high humidity environment, when rack does not power on, due to cabinet walls and night sky generation at night radiation heat transfer, cause the cabinet walls temperature drop low, during lower than the dew point temperature of interior of equipment cabinet humid air, condensation just appears in the rack inwall when the rack wall temperature.Because interior of equipment cabinet is a relatively airtight space, even ambient temperature promotes, the inner condensation evaporation that produces becomes steam, also is difficult in time discharge, thereby has caused repeatedly occurring lastingly of condensation simultaneously.In the actual use of rack, conventional method is to put a certain amount of drier at interior of equipment cabinet, can effectively absorb moisture at a period of time internal desiccant, prevents that passive rack from producing condensation.But after drying absorption reached capacity, the condensation phenomenon can occur again.If guarantee not produce condensation in rack within the long term, not only need to spend manpower periodic replacement drier, and need to consume bulk drying agent.
Find through the open source literature retrieval to prior art, main dewing-proof method is the heating and dehumidification method at present, namely utilizes firing equipment to generate heat to keep the temperature difference suitable between surface and environment, reduces near the relative humidity of easy condensation wall.For example Chinese patent application number is " a kind of New anti-dew device " patent of 201220153080.0, namely is provided with heater in its device inside, and fin is established in the device outside, can be placed in interior of equipment cabinet, prevents that condensation from occuring.Chinese patent application number is " a kind of terminal box moisture-proof heating device that is provided with condensation controller " patent of 201120509641.1, namely by mounting temperature sensor in case and condensation transducer, with the temperature and humidity situation in temperature/humidity controller feedback terminal case in real time, and control heater carries out the heat temperature raising dehumidifying to terminal box.These methods that these patents adopt are the dehumidification equipment complex structure not only, and needs to consume certain electric energy.For the rack that does not also power on, owing to not having power supply that these methods all can't be used on passive rack.
Summary of the invention
Condensation problem easily occuring when not powering on for passive outdoor cabinet, place for overcoming tradition the deficiency that drier prevents condensation generation measure in rack, the invention provides a kind of renewable formula solid drier dehumidifying condensation proof rack.
In the present invention, owing to solid drier being coated on outdoor passive rack metallic interior surface, although night, radiation heat transfer occured in cabinet walls and the night sky, cause the rack wall temperature lower than interior of equipment cabinet air dew point temperature, but due to the effective moisture in absorbed air of drier coating, the air humidity content of the enclosure interior of relative sealing is reduced, thereby make dew point temperature reduce, can effectively prevent condensation.For the drier coating after the moisture absorption at night, because making cabinet temperature, solar radiation in the daytime raises, and drier carries out moisture releasing regeneration, thereby realizes that the drier coating successively carries out moisture absorption and regeneration, thoroughly solves the anti-condensation problem of passive rack.The present invention has rack performance, Influence of production little, reusable edible, the characteristics such as cost is low.
According to the anti-condensation rack of recycled metal base solid drier provided by the invention, comprise cabinet, wherein, be provided with renewable solid drier coat in cabinet.
Preferably, renewable solid drier coat directly is coated on the inwall of cabinet.
Preferably, renewable solid drier coat directly is coated in the sidewall areas of cabinet inwall and/or roof zone.
Preferably, adopt smooth metal base solid drier coating processes that renewable solid drier coat is coated on the inwall of cabinet.
Preferably, also comprise the dehumidifying plate module, wherein, be provided with renewable solid drier coat on the dehumidifying plate module, the dehumidifying plate module is arranged in cabinet.
Preferably, be provided with heat-insulation layer between the inwall of dehumidifying plate module and cabinet.
Preferably, be provided with heat insulation layer between the inwall of dehumidifying plate module and cabinet.
Preferably, be provided with in advance between the inwall of dehumidifying plate module and cabinet and stay in the air layer.
Preferably, the dehumidifying plate module is arranged on the sidewall areas of cabinet inwall and/or roof zone.
The present invention compared with prior art has following advantage:
First, the drier coating process adopts the advantage of placing the desiccant bag method to be that the method can realize moisture absorption and regeneration cycle pattern with tradition, when being the Low Night Temperature high humidity after moisture absorption, in the daytime solar irradiation thermal regeneration, thereby the drier coating can successively be carried out moisture absorption and regeneration, thoroughly solves the anti-condensation problem of passive rack.
The second, adopt the method little on present Cabinet production line impact, and the anti-condensation and renovation process that adopts is all environmental protection.
The 3rd, the drier coating can recycle and moisture absorption and desorption property stable, the solid drier life-span of adopting is more than 5 years, the outdoor occasion that very applicable Cabinet is placed.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
The integrated outdoor cabinet dehumidifying of Fig. 1 cabinet plate structure schematic diagram;
Fig. 2 is dehumidification module coupling heat-insulation layer or heat insulation layer cabinet structure schematic diagram.
In figure:
1 is outdoor cabinet;
2 is the drier coating;
The 3rd, heat-insulation layer (or heat insulation layer);
The 4th, dehumidification module.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Condensation problem occurs when the present invention is directed to passive outdoor cabinet and not powering on, and proposes renewable formula Metal Substrate solid drier dehumidifying condensation proof rack.Specifically adopt smooth metal base solid drier coating processes, apply out of doors a certain amount of drier on the cabinet plate of the easy dewfall of machine space, form integrated outdoor machine dehumidifying cabinet plate, by solar irradiation heating cabinet wall, realize desiccant regeneration in the daytime.Also can make the independently dehumidification module of coating dry drying prescription, it is arranged on interior of equipment cabinet, can leave certain thickness air layer or increase heat-insulation layer between except wet plate and rack wall during installation.Due to the existence of drier coating, can effectively absorb airborne moisture at the interior of equipment cabinet that relatively seals, reduce air humidity content, effectively prevent condensation.Drier coating after the moisture absorption at night, the cabinet wall temperature raises under solar radiation in the daytime, realizes moisture releasing regeneration.Drier coating in the present invention can recycle and moisture absorption and desorption property is stablized, and is little on present Cabinet production and application impact, and environmental protection.
Particularly, according to the rack operating position, determine easily to occur the position (as enclosure top, cabinet sidewalls) of condensation.By analyzing the meteorologic parameter of territory of use, determine easily to occur the ambient temperature and humidity parameter of condensation, calculate maximum condensation load.For the less territory of use of condensation load, can load according to condensation, determine the coated weight of solid absorbent.Directly at the easy position (as the rack end face in Fig. 1) that condensation occurs and can receive in the daytime solar irradiation, utilize Metal Substrate solid absorbent coating processes to carry out coated.Night, the drier coating absorbed airborne moisture, and rack end face or sidewall are subject to solar radiation in the daytime, and temperature raises and realizes the regeneration of drier coating.
When the rack sealing of using relatively poor, and when the regional relative humidity that rack is installed and used is larger, because the condensation load of required processing is larger, use merely integrated outdoor dehumidifying scheme to satisfy the demands, can adopt dehumidifying plate module coupling heat-insulation layer or heat insulation layer scheme.As shown in Figure 2, can make the geomery Metal Substrate identical with rack end face or sidewall with aluminium foil.By calculating maximum condensation load, determine the coated weight of solid absorbent.During installation, can first paste certain thickness heat-insulation layer or reserve certain thickness air layer at rack end face or sidewall, then the dehumidifying plate module is installed.In the daytime rack end face or sidewall are subject to solar radiation, and heating and dehumidification plate module, temperature raise and realize the regeneration of drier coating.
More specifically, the present invention is achieved by the following technical solutions:
(1) integrated outdoor machine dehumidifying cabinet plate: for the less outdoor cabinet equipment compartment of erection unit, because the open ended air capacity in space is larger, it is the space that is easier to occur condensation, adopt smooth metal primary surface solid drier coating processes, the a certain amount of solid drier of cabinet plate upper inner surface coating in easy dewfall space replaces traditional cabinet plate with such dehumidifying cabinet plate.The cabinet plate that wherein scribbles the drier coating should be in sunny slope when rack is installed, the coated weight of drier and coated area calculate according to the meteorological condition of rack territory of use.In the daytime heat the cabinet wall by solar irradiation, make dehumidifying cabinet wooden partition temperature higher than ambient temperature, thereby realize the regeneration of drier coating.
(2) dehumidifying plate module coupling heat-insulation layer or heat insulation layer: can make the independently dehumidification module of coating dry drying prescription coating with the surperficial solid drier coating processes of smooth Metal Substrate, large or be not easy to realize the rack of integrated dehumidifying for condensation load, the dehumidifying plate module can be arranged on interior of equipment cabinet, can make during installation and leave certain thickness air layer between dehumidifying plate module and rack wall or add heat-insulation layer, play insulation effect.Can reduce like this dehumidifying plate module temperature drop at night, the condensation load is reduced, the specification of dehumidifying plate module can be determined according to local meteorological condition.In the daytime because the dehumidifying plate module directly is not subject to solar irradiation, regeneration temperature is lower, for the higher territory of use of relative humidity, be the intensifying regenerating effect, solar panel can be installed on rack, and in inside, small-sized fans be installed, when the sun is fine in the daytime, utilize the direct drive fan of solar power generation, make hot-air directly flow through dehumidifying plate module drier coating surface.In the time of the solar panel generating, the back side produces certain heat heating rack wallboard and dehumidifying plate module, makes dehumidifying plate module temperature higher than ambient temperature, realizes the regeneration of drier coating.
The present invention mainly comprises two processes:
The first process is the dehumidification process of airborne steam in drier coating absorption at night rack: the night sky that (1) passive rack and temperature are lower is carried out the radiation heat transfer temperature and is descended; (2) the metal safe wall surface cooling moisture absorption of solid desiccant material of adhering to; (3) during the air stream drying agent coating surface in rack due to the suction-operated of drier, steam is absorbed, in rack, air humidity descends;
The second process is the heating desorption process of drier coating: (1) passive rack in the daytime absorbs solar radiation, and the cabinet wall temperature raises; (2) solid desiccant material of rack surface attachment is regenerated under heat effect.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.

Claims (9)

1. the anti-condensation rack of recycled metal base solid drier, is characterized in that, comprises cabinet, wherein, is provided with renewable solid drier coat in cabinet.
2. the anti-condensation rack of recycled metal base solid drier according to claim 1, is characterized in that, renewable solid drier coat directly is coated on the inwall of cabinet.
3. the anti-condensation rack of recycled metal base solid drier according to claim 2, is characterized in that, renewable solid drier coat directly is coated in the sidewall areas of cabinet inwall and/or roof zone.
4. the anti-condensation rack of recycled metal base solid drier according to claim 2, is characterized in that, adopts smooth metal base solid drier coating processes that renewable solid drier coat is coated on the inwall of cabinet.
5. the anti-condensation rack of recycled metal base solid drier according to claim 1, is characterized in that, also comprises the dehumidifying plate module, wherein, is provided with renewable solid drier coat on the dehumidifying plate module, and the dehumidifying plate module is arranged in cabinet.
6. the anti-condensation rack of recycled metal base solid drier according to claim 5, is characterized in that, is provided with heat-insulation layer between the inwall of dehumidifying plate module and cabinet.
7. the anti-condensation rack of recycled metal base solid drier according to claim 5, is characterized in that, is provided with heat insulation layer between the inwall of dehumidifying plate module and cabinet.
8. the anti-condensation rack of recycled metal base solid drier according to claim 5, is characterized in that, is provided with in advance between the inwall of dehumidifying plate module and cabinet to stay in the air layer.
9. the anti-condensation rack of recycled metal base solid drier according to claim 5, is characterized in that, the dehumidifying plate module is arranged on the sidewall areas of cabinet inwall and/or roof zone.
CN 201310327198 2013-07-30 2013-07-30 Condensation preventing equipment cabinet with renewable metal matrix solid desiccant Withdrawn CN103384460A (en)

Priority Applications (1)

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CN 201310327198 CN103384460A (en) 2013-07-30 2013-07-30 Condensation preventing equipment cabinet with renewable metal matrix solid desiccant

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CN 201310327198 CN103384460A (en) 2013-07-30 2013-07-30 Condensation preventing equipment cabinet with renewable metal matrix solid desiccant
CN201410356333.8A CN104125730A (en) 2013-07-30 2014-07-24 Renewable metal-based solid drying agent anti-condensation machine cabinet and device

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CN201410356333.8A Pending CN104125730A (en) 2013-07-30 2014-07-24 Renewable metal-based solid drying agent anti-condensation machine cabinet and device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110912838A (en) * 2019-12-06 2020-03-24 北京东土军悦科技有限公司 Switch with heating function
CN111947759A (en) * 2020-08-21 2020-11-17 山西方向标信息科技有限公司 Intelligent metering terminal equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159694A (en) * 2016-07-28 2016-11-23 七星电气股份有限公司 A kind of ring main unit being provided with damp-proof device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699177B (en) * 2009-01-08 2012-05-02 上海交通大学 Regenerative dehumidification heat exchange device
WO2012012418A1 (en) * 2010-07-22 2012-01-26 Clarcor Air Filtration Products, Inc. Self service kiosk incorporating moisture repellant filter
CN102162980A (en) * 2010-12-21 2011-08-24 天津市亚安科技电子有限公司 Window glass dew prevention system for camera housing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110912838A (en) * 2019-12-06 2020-03-24 北京东土军悦科技有限公司 Switch with heating function
CN111947759A (en) * 2020-08-21 2020-11-17 山西方向标信息科技有限公司 Intelligent metering terminal equipment

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Application publication date: 20131106

C04 Withdrawal of patent application after publication (patent law 2001)