CN107388439A - Filtration system for electronic instrument room - Google Patents

Filtration system for electronic instrument room Download PDF

Info

Publication number
CN107388439A
CN107388439A CN201710706388.0A CN201710706388A CN107388439A CN 107388439 A CN107388439 A CN 107388439A CN 201710706388 A CN201710706388 A CN 201710706388A CN 107388439 A CN107388439 A CN 107388439A
Authority
CN
China
Prior art keywords
electronic instrument
instrument room
outlet
import
filtration system
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.)
Pending
Application number
CN201710706388.0A
Other languages
Chinese (zh)
Inventor
冷成昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changxin Universal Eyre Environmental Technology Co Ltd
Original Assignee
Changxin Universal Eyre Environmental Technology Co Ltd
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 Changxin Universal Eyre Environmental Technology Co Ltd filed Critical Changxin Universal Eyre Environmental Technology Co Ltd
Priority to CN201710706388.0A priority Critical patent/CN107388439A/en
Publication of CN107388439A publication Critical patent/CN107388439A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only

Abstract

The present invention proposes a kind of filtration system for electronic instrument room, including:Air intake cover;Dedusting filter, the import of the dedusting filter are connected with the outlet of the air intake cover;Generally sealed electronic instrument room, the import of the electronic instrument room is connected with the outlet of the dedusting filter, the outlet of the electronic instrument room is located between the outlet of the air intake cover and the import of the dedusting filter, and the air pressure of the electronic instrument room is slightly larger than atmospheric pressure;Controller, the controller are connected with the dedusting filter.The present invention proposes a kind of filtration system for electronic instrument room, the dustless state in electronic instrument room can be kept, beneficial to the normal operation of electronic instrument.

Description

Filtration system for electronic instrument room
Technical field
The present invention relates to a kind of filtration system for electronic instrument room.
Background technology
At present, domestic large industrial enterprise is designed with precision electronic device room, but most of enterprise is to wherein accurate electricity It is that the protection of sub- instrument is done and not in place.The factor for influenceing precision electronic device life-span and operation stability mainly has three 1, essence It is too high or too low for temperature in close instrument room, influence the operation stability of electronic component.2nd, humidity is too high in precision instrument room, leads Electronic component oxidation, corrosion life is caused significantly to shorten.3rd, dustiness is bigger than normal in precision instrument room, in rack ventilation and heat process In, bring dust into interior of equipment cabinet, cause internal laying dust serious, so as to the phenomenon for causing fault rate to be significantly increased.This three is asked greatly Topic does not only result in that instrument operation troubles is significantly increased, device longevity is greatly decreased, while also results in each manual cleaning dust During, fault rate that human factor is brought and the aging for accelerating instrument, it also greatly increases the work of attendant The cost that amount and instrument, component are changed.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of filtration system for electronic instrument room.
A kind of filtration system for electronic instrument room according to embodiments of the present invention, including:
Air intake cover;
Dedusting filter, the import of the dedusting filter are connected with the outlet of the air intake cover;
Generally sealed electronic instrument room, the import of the electronic instrument room and the outlet phase of the dedusting filter Even, the outlet of the electronic instrument room is located between the outlet of the air intake cover and the import of the dedusting filter, described The air pressure of electronic instrument room is slightly larger than atmospheric pressure;
Controller, the controller are connected with the dedusting filter.
Advantageously, the described filtration system for electronic instrument room also includes the dehumidifying dress being connected with the controller Put, the import of the dehydrating unit is connected with the outlet of the air intake cover, the outlet of the dehydrating unit and the dust removal and filtration The import of device is connected, the outlet of the electronic instrument room be located at the outlet of the air intake cover and the dehydrating unit import it Between.
Advantageously, the described filtration system for electronic instrument room also includes humidity sensor, the humidity sensor It is located in the electronic instrument room and is connected with the controller.
Advantageously, the described filtration system for electronic instrument room also includes the Total heat exchange being connected with the controller Device, the import of the total-heat exchanger are connected with the outlet of the air intake cover, the outlet of the total-heat exchanger and the dehumidifying The import of device is connected, and the outlet of the electronic instrument room is located at the outlet and the import of the total-heat exchanger of the air intake cover Between.
Advantageously, the described filtration system for electronic instrument room also includes temperature inductor, the temperature inductor It is located in the electronic instrument room and is connected with the controller.
Advantageously, the dedusting filter is MEPF dedusting filters.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the schematic diagram of the filtration system according to an embodiment of the invention for electronic instrument room;
Fig. 2 is the schematic diagram of the filtration system according to another embodiment of the present invention for electronic instrument room;
Fig. 3 is the schematic diagram according to the filtration system for electronic instrument room of further embodiment of this invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail the filtration system for electronic instrument room according to embodiments of the present invention.
Embodiment one
As shown in figure 1, a kind of filtration system for electronic instrument room according to embodiments of the present invention, including:Air intake cover 100, dedusting filter 200, electronic instrument room 300, controller (not shown).
Specifically, the import of dedusting filter 200 is connected with the outlet of the air intake cover.Advantageously, dust removal and filtration Device 200 is MEPF dedusting filters.MEPF (Mobile Electric Power Facility) dedusting filter, fortune Row resistance is small, good dedusting effect.Under same filter effect, the resistance of MEPF dedusting filters is only the 1/10 of HEPA technologies ~1/8, one time filter effect can reach 99.642%.
Electronic instrument room 300 is generally sealed.In other words, encapsulation process is made to place of respectively being leaked out in electronic instrument room 300 first, Seal degree is set to reach more than 90%.Then the inleakage for filling up remaining 10% by introducing the method for the clean fresh air after filtering And resh air requirement is more than inleakage, make to form pressure-fired in electronic instrument room 300, the air of external contamination can not pass through place of leaking out Into in electronic instrument room 300, accomplish that indoor and outdoor air zero exchanges, to keep clean dustless in electronic instrument room 300.Letter speech Each air leakage parts in room are carried out encapsulation process, constantly introduce fresh air by dedusting filter, you can formation is micro- just by it Pressure.
The import of electronic instrument room 300 is connected with the outlet of dedusting filter 200, and the outlet of electronic instrument room 300 is set Between the outlet of air intake cover 100 and the import of dedusting filter 200, the air pressure of electronic instrument room 300 is slightly larger than atmospheric pressure To be circulated in formation, to mitigate the work load of dedusting filter 200.
The controller is connected with dedusting filter 200.
When a kind of filtration system for electronic instrument room according to embodiments of the present invention works, the controller control removes Dirt filter 200 is opened, and the wind of outdoor is introduced air intake cover 100 by the blower fan that dedusting filter 200 carries, and enters dedusting Filter 200 enters dedusting, then enters back into electronic instrument room 300.Due to forming pressure-fired in electronic instrument room 300, Air in part electronics room 300 is entered in electronic instrument room 300 by dedusting filter 200 again by interior circulation.
It should be noted that in actual applications, all parts are installed in indoor (i.e. electronic instrument room in addition to air intake cover In 300).
Above-described embodiment one is applied to the less demanding electronic instrument room of running environment, such as switch gear room, switchgear house.This The operation of quasi-instrument to temperature, humidity it is less demanding, it is influenceed maximum be dust quantity.
Embodiment two
As shown in Fig. 2 the difference of embodiment two and embodiment one is, the described filtration system for electronic instrument room Also include the dehydrating unit 400 being connected with the controller, the import of dehydrating unit 400 is connected with the outlet of air intake cover 100, removed The outlet of wet device 400 is connected with the import of dedusting filter 200, and the outlet of electronic instrument room 300 is located at air intake cover 100 Between outlet and the import of dehydrating unit 400.
Advantageously, the described filtration system for electronic instrument room also includes humidity sensor (not shown), described wet Degree inductor is located in electronic instrument room 300 and is connected with the controller.The humidity sensor detection electronic instrument room 300 Interior humidity, and the controller is controlled opening for dehydrating unit 400 compared with the humidity threshold of setting, and according to comparative result Open, so that the humidity in electronic instrument room 300 keeps constant.
Above-described embodiment two is applied to original central air conditioner system operational excellence, but humidity and dust quantity, which do not reach operation, to be wanted The precision instrument room asked.
Embodiment three
As shown in figure 3, the difference of embodiment three and embodiment two is, the described filtration system for electronic instrument room Also include the total-heat exchanger 500 being connected with the controller, the import of total-heat exchanger 500 and the outlet phase of air intake cover 100 Even, the outlet of total-heat exchanger 500 is connected with the import of dehydrating unit 400, and the outlet of electronic instrument room 300 is located at air intake cover Between 100 outlet and the import of total-heat exchanger 500.
Advantageously, the described filtration system for electronic instrument room also includes temperature inductor (not shown), the temperature Degree inductor is located in electronic instrument room 300 and is connected with the controller.The temperature inductor detection electronic instrument room 300 Interior temperature, and the controller is controlled total-heat exchanger 500 compared with the temperature threshold of setting, and according to comparative result Open, so that the temperature in electronic instrument room 300 keeps constant, temperature-controlled precision can reach ± 2 DEG C.
Above-described embodiment three is applied to temperature, humidity, dust quantity all do not reach the instrument room of instrument service requirement, in forming chamber Interior circulation, reach the effect of indoor dust-free, low humidity, constant temperature.
A kind of filtration system for electronic instrument room according to embodiments of the present invention has the following effects that:
1st, pressure-fired technology, internal circulation filtering
The technology is allowed in electronic instrument room using the method for introducing clean fresh air and forms pressure-fired, except passing through fresh inlet Outside, other room airs unidirectionally can only be exchanged outwards so that interior turns into a similar closed space.The arrangement air-out of science Return air inlet, room air can be circulated, constantly filtered, dehumidified using our core filtering techniques so that room air It is clean, dry, meet the service requirement of each instrument.
As a result of similar closed space system so that temperature control is easier, during a small amount of fresh air enters Temperature adjustment constantly is carried out to the air of inner loop with regard to having carried out dedusting, dehumidifying, while by total-heat exchanger, reached The ideal running temperature of instrument.Most at last the control of whole space dustless, low humidity, reasonable temperature ideal range in.
2nd, running resistance is small, good dedusting effect
International state-of-the-art filtering technique (HEPA) imitates with spline filter at present for core filtering technique (MEPF) contrast of utilization Under fruit, resistance is only the 1/10~1/8 of HEPA technologies, and one time filter effect can reach 99.642%.
3rd, installation is convenient, mounting means is various, and applicability is preferable
Equipment instrument is little, may be mounted at top surface and wall locations, does not interfere with the working region of staff.Installation The diversity of mode so that the technology can be used in various various forms of precision instrument rooms.
4th, it is simple in construction, it is easy to maintenance
The technical maintenance is mainly the cleaning and replacing to core filter screen, and filter screen dismounting facilitates.And change large-scale industrial and mineral The original service mode of type enterprise, the work of deashing maintenance need to be only carried out to our equipment in each maintenance, without extracting Instrument fastener carries out deashing work, and such way greatly reduces fastener fault rate, reduces maintenance cost, reduces and is safeguarding inspection Repair the manpower and materials expenditure of this respect.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more, unless separately There is clearly specific limit.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects Connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is within the scope of the invention to above-mentioned implementation Example is changed, changed, replacing and modification, each falls within protection scope of the present invention.

Claims (6)

  1. A kind of 1. filtration system for electronic instrument room, it is characterised in that including:
    Air intake cover;
    Dedusting filter, the import of the dedusting filter are connected with the outlet of the air intake cover;
    Generally sealed electronic instrument room, the import of the electronic instrument room are connected with the outlet of the dedusting filter, institute The outlet for stating electronic instrument room is located between the outlet of the air intake cover and the import of the dedusting filter, the electronics The air pressure of device room is slightly larger than atmospheric pressure;
    Controller, the controller are connected with the dedusting filter.
  2. 2. the filtration system according to claim 1 for electronic instrument room, it is characterised in that also include and the control The connected dehydrating unit of device, the import of the dehydrating unit are connected with the outlet of the air intake cover, the outlet of the dehydrating unit Import with the dedusting filter is connected, and the outlet that the outlet of the electronic instrument room is located at the air intake cover removes with described Between the import of wet device.
  3. 3. the filtration system according to claim 2 for electronic instrument room, it is characterised in that also including humidity inductive Device, the humidity sensor are located in the electronic instrument room and are connected with the controller.
  4. 4. the filtration system according to claim 2 for electronic instrument room, it is characterised in that also include and the control The connected total-heat exchanger of device, the import of the total-heat exchanger are connected with the outlet of the air intake cover, the total-heat exchanger Outlet be connected with the import of the dehydrating unit, the outlet of the electronic instrument room be located at the outlet of the air intake cover with it is described Between the import of total-heat exchanger.
  5. 5. the filtration system according to claim 4 for electronic instrument room, it is characterised in that also including temperature sense Device, the temperature inductor are located in the electronic instrument room and are connected with the controller.
  6. 6. the filtration system for electronic instrument room according to any one of claim 1-5, it is characterised in that described to remove Dirt filter is MEPF dedusting filters.
CN201710706388.0A 2017-08-17 2017-08-17 Filtration system for electronic instrument room Pending CN107388439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710706388.0A CN107388439A (en) 2017-08-17 2017-08-17 Filtration system for electronic instrument room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710706388.0A CN107388439A (en) 2017-08-17 2017-08-17 Filtration system for electronic instrument room

Publications (1)

Publication Number Publication Date
CN107388439A true CN107388439A (en) 2017-11-24

Family

ID=60353664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710706388.0A Pending CN107388439A (en) 2017-08-17 2017-08-17 Filtration system for electronic instrument room

Country Status (1)

Country Link
CN (1) CN107388439A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1169106A1 (en) * 2000-01-14 2002-01-09 The Holmes Group, Inc. Air purifier
CN101029759A (en) * 2006-02-27 2007-09-05 权力敏 Air purifier of liverstock cultivation
CN102200327A (en) * 2010-03-26 2011-09-28 上海市电力公司 Multifunctional air processing system
CN102620360A (en) * 2012-03-30 2012-08-01 浙江大学建筑设计研究院 Method and device for treating air at tail end of air-conditioning system
CN207050126U (en) * 2017-08-17 2018-02-27 长兴普艾尔环境科技有限公司 Filtration system for electronic instrument room

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1169106A1 (en) * 2000-01-14 2002-01-09 The Holmes Group, Inc. Air purifier
CN101029759A (en) * 2006-02-27 2007-09-05 权力敏 Air purifier of liverstock cultivation
CN102200327A (en) * 2010-03-26 2011-09-28 上海市电力公司 Multifunctional air processing system
CN102620360A (en) * 2012-03-30 2012-08-01 浙江大学建筑设计研究院 Method and device for treating air at tail end of air-conditioning system
CN207050126U (en) * 2017-08-17 2018-02-27 长兴普艾尔环境科技有限公司 Filtration system for electronic instrument room

Similar Documents

Publication Publication Date Title
CN201269609Y (en) Fresh air ventilation machine with humidity control function
CN101678263B (en) Air filter
CN106440118B (en) Dehumidification oxygen purification system
CN102016431A (en) Dehumidifier apparatus and method
CN201637041U (en) Heat recovery fresh air machine with humidification and dehumidification functions
AU2014363233B2 (en) Device for producing a stream of air through a volume of liquid
CN211503042U (en) Full heat exchange ceiling dehumidifier
CN108923284A (en) A kind of heat-radiating dustproof device of electric power cabinet
CN109787098B (en) Intelligent terminal box
KR102073310B1 (en) Method of manufacturing apparatus for cooling sever room and air conditioning system for data center therewith
CN207050126U (en) Filtration system for electronic instrument room
CN104879844B (en) Disc type air ecological box
CN205245410U (en) Airtight space's dehumidification controlling means
CN108445925A (en) Electric panel room dehumidification system
CN107388439A (en) Filtration system for electronic instrument room
CN206803367U (en) bidirectional flow heat recovery fresh air dehumidifier
CN209386486U (en) Air-duct apparatus and ventilation equipment with it
CN209173587U (en) A kind of deduster of the heating system with deashing device
CN208061037U (en) Electric panel room dehumidification system
CN114222475A (en) Positive pressure non-magnetic fresh air cooling and dust removing device
CN113966142B (en) Machine room refrigerating cabinet based on heat pipe exchanger and air conditioner and control method thereof
CN108891792A (en) A kind of positive pressure cooling system and method applied to low capacity container SVG
CN207559354U (en) A kind of box-type substation Temperature and Humidity Control equipment
CN211903115U (en) Fresh air dehumidifier with sewage discharge pipeline
CN208095013U (en) A kind of circulating exhaust device for PLC control cabinet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20171124

RJ01 Rejection of invention patent application after publication