CN106949549A - A kind of railway computer room dual system air-conditioning - Google Patents
A kind of railway computer room dual system air-conditioning Download PDFInfo
- Publication number
- CN106949549A CN106949549A CN201710260540.7A CN201710260540A CN106949549A CN 106949549 A CN106949549 A CN 106949549A CN 201710260540 A CN201710260540 A CN 201710260540A CN 106949549 A CN106949549 A CN 106949549A
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- Prior art keywords
- condenser
- air
- conditioning
- compressor
- evaporator
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
- F24F2013/225—Means for preventing condensation or evacuating condensate for evacuating condensate by evaporating the condensate in the cooling medium, e.g. in air flow from the condenser
Abstract
The invention discloses a kind of railway computer room dual system air-conditioning, including room conditioning unit and outdoor air conditioner unit, the room conditioning unit includes compressor, synergistic device, evaporator, evaporator fan and condensation water pond, compressor and synergistic device are two, compressor is connected with evaporator, synergistic device is connected with condensation water pond, and located at the exit of compressor, evaporator fan is arranged on the top of room conditioning unit;The outdoor air conditioner unit includes condenser, condenser fan and condenser self-cleaning device, condenser is connected with synergistic device, and is connected by pipeline with evaporator, and condenser fan is located at the top of condenser, and air draft upwards, condenser self-cleaning device is located at the inside of outdoor air conditioner unit.The achievable Double-working-condition operation of the present invention, is independently controlled the thermal environment in railway passenger station equipment room, both ensure that air-conditioning system reliability of operation and security, energy utilization rate is improved again.
Description
Technical field
Air conditioner field is used the invention belongs to railway computer room, it is empty with dual system more particularly, to a kind of railway computer room
Adjust.
Background technology
At present, the safe operation of railway air conditioner in machine room is particularly significant, if Frequent Troubles can be to the driving communication in computer room
Equipment belt carrys out potential safety hazard, and then jeopardizes traffic safety.Another railway, which is concentrated in information machine room, large number quipments room, such as information system
System computer room, network equipment computer room, communications equipment room etc., are characterized in being generally located in building inner region, the heat-insulating property of building enclosure is very
It is good, the big (400~2000W/m of radiating index of electronic equipment caloric value2), wherein more than 95% is sensible heat, even if also needing in the winter time
Cooling.The working environment stable to ensure electronic equipment, it is desirable to for computer room service air conditioner must whole year 8760h continuously transport
Turn.Therefore, Design of Machine Room will not only pay attention to the energy-conservation of air conditioner in machine room equipment, more ensure the reliability of air conditioner in machine room and system.
However, the realization of air conditioner in machine room and system reliability can not simply by increase number of devices realize, it is necessary to from operation,
Whole system is analyzed in terms of failure and maintenance, simplifies system as far as possible, makes it have operability.Special air conditioning for device room
System is generally divided into Wind-cooling type, cold water type, water-cooling type.Wherein, Wind-cooling type special air conditioning for device room is general by some autonomous system groups
Conjunction is formed, and breaking down also only influences a local autonomous system, each autonomous system for information machine room require special design,
Batch production is manufactured, and operation control integration, reliability is higher, and system redundancy measure is simple, unit mean free error time >=10
Ten thousand h, service life is 10 years, and fault rate is very low.Cold water type special air conditioning for device room need to set handpiece Water Chilling Units, water supply pump, cooling tower,
The equipment such as cooling water pump, although indoor cold water type air conditioner in machine room machine fault rate is very low, reliability is secure, but whole system is big
Part configuration belongs to comfort air conditioning system equipment, reliability by designing, construct, product quality is influenceed greatly, system redundancy measure is multiple
Miscellaneous, based on the 000h/ of run time 2, comfort air conditioning system service life of equipment is 5~8 years, and fault rate is higher.Water-cooling type air-conditioning
The equipment such as cooling tower, cooling water pump need to be set, and the reliability of whole system is between Wind-cooling type and cold water type air-conditioning.
In terms of energy-conservation, in Wind-cooling type, water-cooling type, three kinds of air conditioning unit dedicated for device room of cold water type, the COP values of air-cooled unit
It is relatively low, and in the design in large scale electronic equipment room, due to the condenser and the refrigerant pipe range of indoor set of air-cooled unit
Degree is generally limited in 30m, and the outdoor unit of air-cooled unit needs to take the area of facade or roofing.Handpiece Water Chilling Units COP is higher than water
The special air conditioning for device room of cold mould, and water-cooling type air-conditioning is only from double low-temperature receiver (cold water/water-cooled direct expansion system) unit ability
The free cold supply in winter, but the investment increase by 30% or so of this unit are realized, floor space accordingly increases.In addition, railway computer room
Universal smaller, the generally 12-50m of area2, space is more nervous.
Therefore, a kind of i.e. guarantee of design is needed badly in shortcoming and deficiency based on existing railway computer room air-conditioning system, this area
Calculator room equipment reliability, and energy-conservation, and the less special air conditioner of space-consuming area.
The content of the invention
It is empty with dual system the invention provides a kind of railway computer room for the disadvantages described above or Improvement requirement of prior art
Adjust, wherein with reference to the characteristics of railway computer room itself, respective design is applied to the dual system air-conditioning of railway computer room, and the air-conditioning can be real
Existing Double-working-condition operation, is independently controlled the thermal environment in railway passenger station equipment room, both ensure that air-conditioning system is transported
Capable reliability and security, improves energy utilization rate again, solve equipment room air conditioner floor space big, system complex,
The problems such as poor reliability, it can be widely applied to the equipment room of railway passenger station.
To achieve the above object, the present invention proposes a kind of railway computer room dual system air-conditioning, and it includes what is be connected with each other
Room conditioning unit and outdoor air conditioner unit, wherein:
The indoor air conditioner is mounted on interior, and it includes compressor, synergistic device, evaporator, evaporator fan and condensation
Water pond, the compressor and synergistic device are two, and two compressors are independently run, two compressors and the evaporator
It is connected, two synergistic devices are connected with the condensation water pond below the evaporator, and located at the corresponding compressor
Exit, facilitate the use it is described condensation water pond collect condensed water the refrigerant gas of compressor outlet is cooled,
The evaporator fan is arranged on the top of the room conditioning unit;
The outdoor air-conditioner is mounted on outdoor, and it includes condenser, condenser fan and condenser self-cleaning device, described
Condenser is connected by refrigerant tubing with the synergistic device of the room conditioning component, and passes through pipeline and the interior
The evaporator of air-conditioning assembly is connected, and the condenser fan is located at the top of the condenser, and air draft upwards, described cold
Condenser self-cleaning device is located at the inside of the outdoor air conditioner unit.
The railway computer room dual system air-conditioning of the present invention can be in a compressor operating pattern or two same lucks of compressor
Switch to realize that Double-working-condition is run between capable pattern, be specially, when outdoor environment temperature is less than or equal to 27 DEG C, to open one
Individual compressor, closes a compressor, and two compressors are opened in turn;When outdoor environment temperature is more than 27 DEG C, open
Two compressors.
As it is further preferred that being provided with evaporator self-cleaning device in the room conditioning unit;It is described for connecting
Throttling arrangement is provided with the pipeline of condenser and evaporator.
As it is further preferred that the condenser self-cleaning device and evaporator self-cleaning device are self-cleaning filter, institute
Stating self-cleaning filter includes shell and the filter assemblies being arranged in shell, wherein the shell is provided with air inlet and air-out
Mouthful, the filter assemblies include cartridge filter of the barrel provided with screen pack, the controller that is controlled by being arranged at the top of cartridge filter
Motor and the self-cleaning hairbrush being arranged in cartridge filter, wherein the cartridge filter is fixed on shell, and are sealed by cover, are set in it
Have being connected with the motor and for fixing the rotating shaft of the self-cleaning hairbrush, bristle and the screen pack of the self-cleaning hairbrush
Dust discharge blade is additionally provided with contact, the rotating shaft;The air inlet and air outlet are located at the bottom and side of the cartridge filter respectively
Portion.
As it is further preferred that the compressor uses rotator type compressor of air conditioner, reciprocating compressor, centrifugal pressure
Contracting machine, scroll compressor or screw compressor.
As it is further preferred that the evaporator is copper pipe aluminum fin heat exchanger or micro-channel parallel flow heat exchanger;Institute
Evaporator fan is stated for backswept centrifugal fan, outer rotor blower fan, centrifugal blower or axial flow blower.
As it is further preferred that the condenser is micro-channel parallel flow heat exchanger or copper pipe aluminum fin heat exchanger;Institute
Condenser fan is stated for outer rotor blower fan, centrifugal blower or axial flow blower.
As it is further preferred that the room conditioning unit is installed in the rack of indoor, air supply mode is under level
Air-supply;The Water in Condenser placing flat.
As it is further preferred that the dual system air-conditioning realizes that Double-working-condition is run, specially in a compressor operating
Switch the pattern that pattern or two compressors are run simultaneously between.
In general, possess following compared with prior art, mainly by the contemplated above technical scheme of the present invention
Technological merit:
1. the achievable double copies of the present invention, Double-working-condition operation, according to daytime different weather conditions or daytime with evening not
Same environmental condition etc., in a compressor operating pattern or double-compressor while switching between operational mode, that is, ensures that computer room is empty
The reliability and security of tune and system, can save the energy, improve energy utilization rate, extend the use of air-conditioner set again
Life-span, the problems such as solving big equipment room air conditioner floor space, system complex can be widely applied to setting for railway passenger station
Standby room.
2. the present invention sets synergistic device in compressor outlet, high to compressor outlet using the condensed water for condensing water pond collection
The refrigerant gas of warm high pressure is cooled, strengthening system condensation effect, improves system energy efficiency, and extend the use longevity of product
Life.
3. condenser of the present invention and evaporator band self-cleaning cartridge filter for installation, can solve asking for inlet and outlet blocking
Topic, can keep computer room cleanliness factor to reach B grade, can automated cleaning filter cylinder, it is ensured that the continuous and steady operation of air-conditioning system, reduce and tie up
Protect workload.
4. the Water in Condenser placing flat of the present invention, condenser fan air-out mode is upper air-out, natural wind is reduced to condensation
The influence of fan condensation effect;Indoor set uses backward centrifugal blower, and wind-force is bigger;System uses horizontal underfloor air distribution, system
It is cold better;Using metal shell, air supply rate is hardly damaged, and improves the service life of product;System is set using modular
Meter, equipment is forward type, easy access.
Brief description of the drawings
Fig. 1 is the structural representation of the special dual system air-conditioning of railway computer room;
Description of reference numerals:
1- compressors;2- synergistic devices;3- condensers;4- condenser fans;5- condenser self-cleaning devices;6- throttling arrangements;
7- evaporators;8- evaporator fans;9- condenses water pond;10- evaporator self-cleaning devices;11- condensate draining pipes;A- room conditionings
Unit;B- outdoor air conditioner units;C- walls
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
As shown in figure 1, a kind of railway computer room dual system air-conditioning provided in an embodiment of the present invention, it is dual system Double-working-condition
Air-conditioning is run, is realized and freezed using two independent compressors, dual system refers to that two compressors are arranged on same air-conditioning cabinet
In, independent operating, and mutually back up.The dual system air-conditioning includes the room conditioning unit A and outdoor air-conditioner being connected with each other
Group B, wherein, indoor air conditioner is mounted on interior, including compressor 1, synergistic device 2, evaporator 7, evaporator fan 8 and condensed water
Disk 9, compressor 1 and synergistic device 2 are two, and two compressor parallels are arranged in indoor apparatus of air conditioner, and are independently run,
The compressor 1 is connected with evaporator 7, and synergistic device 2 is connected with the condensation water pond 9 located at the lower section of evaporator 7, and the synergistic device 2
Located at the exit of compressor 1, facilitate the use exhaust of the condensed water in condensation water pond 9 to compressor 1 and cool, condense
The draining that condensate draining pipe carries out condensed water is provided with water pond 9, evaporator fan 8 is arranged on the top of room conditioning unit
Portion;Outdoor air-conditioner is mounted on outdoor, and it includes condenser 3, condenser fan 4 and condenser self-cleaning device 5, and condenser 3 leads to
Cross refrigerant tubing with the synergistic device 2 of room conditioning component to be connected, and pass through the phase of evaporator 7 of pipeline and room conditioning component
Even, refrigerant takes away the indoor heat distributed by condenser, and condenser fan 4 is located at the top of condenser 3, the condenser fan
4 upward air drafts, condenser self-cleaning device 5 is located at the inside of outdoor air conditioner unit, self-cleaning with the filtering for realizing outdoor unit.
As a preferred embodiment of the present invention, room conditioning unit is installed in indoor machine cabinet, and its air supply mode is
Blown under level, two compressors are independently run, and the horizontal positioned of condenser 3 in it, indoor set uses modular designs,
Equipment is forward type.Evaporator self-cleaning device 10 is provided with room conditioning unit, it is self-cleaning to realize filtering, it is cold for connecting
Throttling arrangement 6, specially expansion valve are provided with the pipeline of condenser 3 and evaporator 7.
Specifically, compressor 1 in indoor set can be using rotator type compressor of air conditioner, reciprocating compressor, centrifugal
Compressor, scroll compressor or screw compressor;Evaporator 7 can be copper pipe aluminum fin heat exchanger or micro-channel parallel flow
Heat exchanger;Evaporator fan 8 can be backswept centrifugal fan, outer rotor blower fan, centrifugal blower or axial flow blower;Condenser 3 can
Think micro-channel parallel flow heat exchanger or copper pipe aluminum fin heat exchanger;Condenser fan 4 can be outer rotor blower fan, centrifugal blower
Or axial flow blower.
As a preferred embodiment of the present invention, the condenser self-cleaning device 5 and evaporator self-cleaning device 10 are
Self-cleaning filter (self-cleaning cartridge filter), self-cleaning cartridge filter both sides are provided with pressure sensor, are led according to dust stratification amount
The self-cleaning cartridge filter pressure at both sides change of cause, can automated cleaning filter cylinder.Self-cleaning filter includes shell and set outside
Filter assemblies in shell, wherein, shell is full metal jacket, and shell is provided with air inlet and air outlet, and filter assemblies include cylinder
Cartridge filter of the wall provided with screen pack, the motor for being controlled by controller that is arranged at the top of cartridge filter and it is arranged in cartridge filter
Self-cleaning hairbrush, wherein cartridge filter are fixed on shell, and are sealed by cover, are provided with being connected with motor in it and are used to fix certainly
The rotating shaft of clean hairbrush, the bristle of self-cleaning hairbrush is contacted with screen pack, and dust discharge blade is additionally provided with rotating shaft;Air inlet and air outlet point
Not Wei Yu cartridge filter bottom and sidepiece.
The dual system air-conditioning of the present invention can realize that Double-working-condition is run, and can be compressed in a compressor operating pattern or two
Switch the pattern that machine is run simultaneously between.The switching of dual system air-conditioning both of which is controlled using control system, the control system
System realizes the switching of dual system air conditioning operating mode according to outdoor environment temperature condition, i.e., when outdoor environment temperature is more than 27 DEG C
When, open two compressor air-conditioning systems;When outdoor environment temperature is less than or equal to 27 DEG C again, a compressor sky is opened
Adjusting system, closes a compressor, and two system steerage streams are opened.The control system is the system of general structure, its need
Can realize the switching of above-mentioned air-conditioning both of which, the control system can remote monitoring, and equipped with giant-screen Chinese
LCDs, shows unit operation parameter.The control system can set indoor objects humiture, and initialization system is automatic, permanent
Temperature, the operational mode of constant humidity, set run time, and can provide following message:Return air temperature, return air humidity, temperature set-point,
Run time, operational mode and alarm information, fault diagnosis show and alarmed, compressor start sequential selection and control, load
Limitation, starting process (pre-lubrication etc.) control etc..
The present invention is according to different weather condition or environmental condition etc., in a compressor air-conditioning system running pattern or two
Individual compressor air-conditioning system switches between operational mode simultaneously, it is to avoid the cold of conventional air cooling technology is wasted;Using automatic
Switching control pattern, meets energy-saving run of the system throughout the year at a temperature of varying environment;The structure that equipment is forward type is set
Meter, flexibly aspect, safe and reliable.
The refrigerant of the present invention enters synergistic device from compressor outlet, and synergistic device utilizes the condensed water pair for condensing water pond collection
The refrigerant gas of compressor outlet HTHP is cooled, strengthening system condensation effect, improves system energy efficiency, and extend production
The service life of product.Air-conditioning original construction is not being destroyed again without under conditions of too big investment, while improving air conditioner refrigeration effect,
Make air-conditioning system operation more steady again, air-conditioning can realize Wind Volume, small enthalpy difference, high sensible heat ratio (>0.9).
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, any modification, equivalent and the improvement made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (8)
1. a kind of railway computer room dual system air-conditioning, it is characterised in that empty including the room conditioning unit being connected with each other and outdoor
Unit is adjusted, wherein:
The indoor air conditioner is mounted on interior, and it includes compressor (1), synergistic device (2), evaporator (7), evaporator fan
(8) and condensation water pond (9), the compressor (1) and synergistic device (2) be two, and two compressors (1) are independently run,
Two compressors (1) are connected with the evaporator (7), two synergistic devices (2) with located at the evaporator (7)
The condensation water pond (9) of lower section is connected, and located at the exit of the corresponding compressor (1), facilitates the use described cold
The refrigerant gas that the condensed water that solidifying water pond (9) is collected is exported to compressor (1) cools, evaporator fan (8) peace
Mounted in the top of the room conditioning unit;
The outdoor air-conditioner is mounted on outdoor, and it includes condenser (3), condenser fan (4) and condenser self-cleaning device
(5), the condenser (3) is connected by refrigerant tubing with the synergistic device (2) of the room conditioning component, and is passed through
Pipeline is connected with the evaporator (7) of the room conditioning component, and the condenser fan (4) is located at the condenser (3)
Top, and upwards air draft, the condenser self-cleaning device (5) be located at the outdoor air conditioner unit inside.
2. railway computer room dual system air-conditioning as claimed in claim 1, it is characterised in that set in the room conditioning unit
There is evaporator self-cleaning device (10);Throttling arrangement is provided with pipeline for connecting the condenser (3) and evaporator (7)
(6)。
3. railway computer room dual system air-conditioning as claimed in claim 1 or 2, it is characterised in that the condenser self-cleaning device
(5) and evaporator self-cleaning device (10) is self-cleaning filter, the self-cleaning filter includes shell and is arranged in shell
Filter assemblies, wherein the shell is provided with air inlet and air outlet, the filter assemblies include barrel and are provided with screen pack
Cartridge filter, the motor for being controlled by controller being arranged at the top of cartridge filter and the self-cleaning hairbrush being arranged in cartridge filter, wherein institute
State cartridge filter to be fixed on shell, and sealed by cover, be provided with being connected with the motor in it and be used to fix described self-cleaning
The rotating shaft of hairbrush, the bristle of the self-cleaning hairbrush is contacted with the screen pack, and dust discharge blade is additionally provided with the rotating shaft;It is described enter
Air port and air outlet are respectively positioned at the bottom of the cartridge filter and sidepiece.
4. railway computer room dual system air-conditioning as claimed in claim 3, it is characterised in that the compressor (1) uses rotor
Formula compressor of air conditioner, reciprocating compressor, centrifugal compressor, scroll compressor or screw compressor.
5. railway computer room dual system air-conditioning as claimed in claim 4, it is characterised in that the evaporator (7) is copper-tube aluminium
Finned heat exchanger or micro-channel parallel flow heat exchanger;The evaporator fan (8) be backswept centrifugal fan, outer rotor blower fan, from
Heart blower fan or axial flow blower.
6. railway computer room dual system air-conditioning as claimed in claim 5, it is characterised in that the condenser (3) is microchannel
Parallel-flow heat exchanger or copper pipe aluminum fin heat exchanger;The condenser fan (4) is outer rotor blower fan, centrifugal blower or axle stream wind
Machine.
7. railway computer room dual system air-conditioning according to claim 6, it is characterised in that the room conditioning unit is installed
In in the rack of indoor, air supply mode is air-supply under level;Condenser (3) horizontal positioned.
8. the railway computer room dual system air-conditioning according to claim any one of 1-7, it is characterised in that the dual system is empty
Tune realizes that Double-working-condition is run, and is specially to switch between the pattern that a compressor operating pattern or two compressors are run simultaneously.
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CN201710260540.7A CN106949549A (en) | 2017-04-20 | 2017-04-20 | A kind of railway computer room dual system air-conditioning |
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CN107339783A (en) * | 2017-08-22 | 2017-11-10 | 合肥天鹅制冷科技有限公司 | Dual system air-conditioner control system |
CN108278696A (en) * | 2017-12-24 | 2018-07-13 | 丁浩然 | A kind of self-cleaning air-conditioning filter net |
CN108386974A (en) * | 2018-01-29 | 2018-08-10 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air-conditioner set and its control method |
CN114269119A (en) * | 2021-12-22 | 2022-04-01 | 珠海格力电器股份有限公司 | Fan installation assembly and lower blower room air conditioning system |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107339783A (en) * | 2017-08-22 | 2017-11-10 | 合肥天鹅制冷科技有限公司 | Dual system air-conditioner control system |
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CN108386974A (en) * | 2018-01-29 | 2018-08-10 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air-conditioner set and its control method |
CN114269119A (en) * | 2021-12-22 | 2022-04-01 | 珠海格力电器股份有限公司 | Fan installation assembly and lower blower room air conditioning system |
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Effective date of registration: 20171227 Address after: 430063 Wuchang, Hubei, Yang Park, Heping Avenue, No. 745 Applicant after: CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd. Applicant after: CHANGSHA MAXXOM HIGH-TECH CO.,LTD. Address before: 430063 Wuchang, Hubei, Yang Park, Heping Avenue, No. 745 Applicant before: CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd. |
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Application publication date: 20170714 |