CN2742325Y - Air conditioning unit for communication machine room - Google Patents

Air conditioning unit for communication machine room Download PDF

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Publication number
CN2742325Y
CN2742325Y CN 200420092820 CN200420092820U CN2742325Y CN 2742325 Y CN2742325 Y CN 2742325Y CN 200420092820 CN200420092820 CN 200420092820 CN 200420092820 U CN200420092820 U CN 200420092820U CN 2742325 Y CN2742325 Y CN 2742325Y
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CN
China
Prior art keywords
air
condenser
chamber
evaporimeter
communication machine
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.)
Expired - Lifetime
Application number
CN 200420092820
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Chinese (zh)
Inventor
梁国贤
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.)
Yuyao Jiefeng Air Conditioning Equipment Co ltd
Original Assignee
Yuyao Jiefeng Air Conditioning Equipment 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 Yuyao Jiefeng Air Conditioning Equipment Co ltd filed Critical Yuyao Jiefeng Air Conditioning Equipment Co ltd
Priority to CN 200420092820 priority Critical patent/CN2742325Y/en
Application granted granted Critical
Publication of CN2742325Y publication Critical patent/CN2742325Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a special air conditioning unit for communication machine rooms, which comprises a casing (20). The utility model is characterized in that the casing (20) is provided with a single blowing chamber (21) and a single air returning chamber (22), wherein the blowing chamber (21) is provided with a blowing opening (21A) communicated with communication machine rooms, and the air returning chamber (22) is provided with a new air opening (22A) communicated with the atmosphere, an air returning opening (22B) communicated with the communication machine rooms, and a condensing air discharge opening (22C) communicated with the atmosphere. A communication opening (24) is communicated between the blowing chamber (21) and the air returning chamber (22). The casing is also provided with a valve plate (23) which can rotate between two operating positions. A refrigeration device (10) and a heating device (30) are arranged in the casing (20). An outlet of a compressor (13) is connected with an inlet of an evaporator (11) by a condenser (15), and an outlet of the evaporator (11) is connected with an inlet of the compressor by a gas and liquid segregator (16). The utility model does not need special air conditioner rooms, can be operated automatically or manually and has the advantages of multiple functions, low energy consumption, simple mechanism, light weight, small volume, convenient disassembly and assembly and less investment.

Description

Communication machine room special air conditioner unit
Technical field
The utility model relates to air-conditioning equipment, particularly a kind of communication machine room special air conditioner unit.
Background technology
In mechanics of communication, many communication websites are connected with monitoring network by electronic equipment and control.Environment temperature to electronic equipment requires strict, particularly when annual 24 hours every days continual operations, owing to give out a large amount of heats during various electronic device works, the electronic equipment temperature is raise, in order to guarantee the normal operation of electronic equipment, just must be equipped with air-conditioning equipment, be lowered the temperature; When winter temperature hangs down, must be with the environment heat temperature raising; In spring, time in autumn, then need only aeration-coolingly get final product.According to the difference of temperature in four seasons, the uniform temperature in the holding chamber is to satisfy the temperature requirement of electronic equipment.But existing air-conditioning equipment is generally cold and hot type, promptly can heat when winter, freezes when summer, and when spring and autumn, used season, owing to lack ventilation function, no matter use refrigeration or heat-production functions, all wastes.If the increase ventilation unit, then ventilation equipment take up an area of increases, and unit volume is excessive, needs to build air conditioning equipment room, has also increased investment.In addition, some communication website is uninhabited, requires its air-conditioning equipment in the weather in the four seasons, to press the temperature requirement of electronic equipment under unattended, and the operation that heats up automatically, lowers the temperature, ventilates is to save manpower.
The utility model content
The purpose of this utility model provides a kind of communication machine room special air conditioner unit, and it has refrigeration, heats, ventilation function; Its function is complete, and volume is little, and mechanism is simple, need not build the special-purpose machine room of special air conditioner ventilation equipment, and mounting or dismounting are convenient, by robot control system(RCS) is set, then need not special messenger's nurse, saves operating cost.
The purpose of this utility model is to realize by following technical scheme.
The utility model communication machine room special air conditioner unit comprises casing, it is characterized in that:
Described casing has 2 independent plenum chambers, return air chamber, and described plenum chamber has air outlet and communication machine room interlinks; Described return air chamber has fresh wind port and atmosphere interlinks, return air inlet and communication machine room interlinks, condensation exhaust mouth and atmosphere interlink; Having port between described plenum chamber, return air chamber interlinks; On casing, also have the valve plate that can turn round between 2 stations, be used to change gas circuit:
When being positioned at station 1. the time, port and return air inlet are interlinked and making fresh wind port and the condensation exhaust mouth interlinks;
When being positioned at station 2. the time, port and fresh wind port are interlinked and making return air inlet and the condensation exhaust mouth interlinks;
In described casing, refrigerating plant, heating combined equipment are housed;
Refrigerating plant comprises evaporimeter, pressure fan, compressor, condenser fan, condenser, liquid/gas separator, the outlet of compressor links to each other with the inlet of evaporimeter through condenser, the outlet of evaporimeter links to each other with the inlet of compressor through gas-liquid separator, condenser fan is positioned at condenser one side, and pressure fan is positioned at evaporimeter one side;
Evaporimeter, pressure fan all are arranged in plenum chamber; Condenser fan, condenser all are arranged in return air chamber;
Refrigerating plant comprises heater, is positioned at plenum chamber;
Described evaporimeter is positioned at the air outlet place of plenum chamber, the air inlet of described pressure fan communicates with port, the air outlet of described pressure fan communicates with air outlet through evaporimeter, condenser fan, condenser all are arranged in the condensation exhaust mouth place of return air chamber, and heater is positioned at evaporimeter one side of plenum chamber;
Screen pack is housed on port; On air outlet, fresh wind port, return air inlet, screen pack is housed.
Valve plate is positioned on the valve shaft, and YE is housed on valve shaft.
At fresh wind port, return air inlet place sensor is housed.
The utility model adopts refrigeration to add auxiliary electrically heated cooling and warming mode of operation and aeration-cooling mode of operation.At communication machine room indoor (hereinafter to be referred as indoor) when air themperature is higher than the room design temperature, unit starting refrigeration work pattern; When indoor air temperature is lower than the room design temperature, the heating of unit starting auxiliary electrical.Be higher than the room design temperature and outdoor temperature when suitable at indoor air temperature, adopt aeration-cooling mode of operation.The valve plate that this unit comprises refrigeration, heats, ventilating system and change wind path are used, regulate wind path according to the variation of outside air temperature:
Refrigeration, valve plate at station 1., when indoor air temperature was higher than the room design temperature, unit was pressed the cooling condition running, at this moment, pressure fan, compressor, condenser fan action, the auxiliary electrical heating is closed, and the flow of refrigerant direction is: compressor is discharged high pressure, high-temperature gas, flows into condenser coil, become the liquid of HTHP therein by the external environment air setting, flow to heating power expansion valve; System is condensate in the heating power expansion valve after the throttling step-down, and the refrigerant liquid that becomes low-temp low-pressure flows into evaporation coil; Cold-producing medium is drawn the heat that room air passes in evaporation coil and the gas that becomes low-temp low-pressure flows into vapour liquid separator, in this step, indoor return air is sent into indoor to reduce indoor air temperature after evaporimeter (evaporation coil) cooling by pressure fan, reach the refrigeration purpose; Cold-producing medium enters compressor isolate unevaporated refrigerant liquid in vapour liquid separator after; Cold-producing medium is discharged from blast pipe be compressed into the gas of HTHP in compressor after, enters condenser (condenser coil).Circulation is freezed so again and again.
During refrigeration, air is only in indoor circulation, and route is that air sucks from return air inlet, delivers to indoor through pressure fan, evaporimeter (cooling); Outdoor air sucks from fresh wind port, discharges outdoorly through condenser, condensation fan, and compressor is cooled off.
Heat, valve plate at station 1., when indoor air temperature was lower than the room design temperature, 1. position of valve plate station press in unit starting auxiliary electrical heating, air is only in indoor circulation, unit is pressed the power save mode heating condition and is turned round.When the electric heater of unit moves, compressor, condenser fan are closed, pressure fan, auxiliary electrical heating action. and indoor return air is sent into indoor and the room air mixed heat transfer by pressure fan after the electrical heating heating, improve indoor air temperature, thereby reach the purpose that heats.
Ventilate, valve plate station 2., when outdoor temperature suitable (design temperature in the proximate chamber), utilize outdoor cool air, aeration-cooling, air is through outdoor, indoor circulation, at this moment, unit only moves pressure fan, condensation exhaust machine, and electric heater, compressor disconnect, air is in fresh wind port, pressure fan, air outlet inlet chamber, with room air is discharged to outdoor from return air inlet, exhaust outlet, carry out the purpose that heat exchange reaches cooling by new wind of direct introduction and room air, with energy efficient.By temperature, the control valve Board position of the inside and outside air of measuring cell, unit can be multi-functional operation reduce energy consumption, reduce operating cost and reach energy-conservation order.
Valve plate is positioned on the valve shaft, and actuator is housed on valve shaft, according to each mode of operation needs, is finished the station of this valve plate by the actuator operation.
Settle temperature sensor and set up automatic control circuit at each ventilating opening to control the action of various patterns, to reach automatic control.
This unit can be with semi-automatic operation (adopting common button control method to start, stop the action of each parts) or automatically operation (adopting the temperature sensor control method to start, stop the action of each parts automatically).
In sum, the compact conformation of this unit, pressure fan, condenser fan, evaporation coil, condenser coil, compressor etc. all are installed in the same casing, mechanism is simple, and is in light weight, and volume is little, mounting or dismounting are convenient, and unit can directly be installed on the exterior wall of air-conditioned room, need not special Air Conditioning Facilities; But automatic or manual operation; Unit adopts air cooling system, and with direct air-supply, directly the form of return air need not be installed airduct, need not cooling tower and water system, greatly reduces equipment investment.The utlity model has multi-functional, low energy consumption, mechanism is simple, and is in light weight, volume is little, mounting or dismounting are convenient, the advantage of small investment.The utility model unit also can be applicable to rooms such as other instrument, control device, as control temperature, the usefulness of ventilating.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 be A among Fig. 1 to view,
Fig. 3 is the B-B cutaway view among Fig. 1,
Fig. 4 is the refrigeration among the present invention, the system schematic that heats,
Fig. 5 is the structural representation of valve plate 23,
Fig. 6 is that D among Fig. 5 is to view.
Code name explanation among the figure
10 refrigerating plants
11 evaporimeters (evaporation coil), 12 pressure fans, 13 compressors, 14 condenser fan
15 condensers (condenser coil), 16 gas-liquid separators, 17 filters, 18 expansion valves
19 temperature-sensitive bag 19A pressure switch 19B outer balance pipe 19C survey the pressure at expulsion device
19D surveys pressure of inspiration(Pi) device 19E tube connector
20 casings
21 plenum chamber 21A air outlet 21B dividing plates, 22 return air chamber 22A fresh wind port 22B return air inlets
22C exhaust outlet 22D cooling vent 23 valve plates 24 ports 25 filter screens 26 valve shafts
27 actuators
28,28A sensor
30 heating combined equipments (electric heater)
Embodiment
Be the structural representation of communication machine room special air conditioner unit of the present invention as Fig. 1,2,3, comprise casing 20, described casing 20 has 2 independent plenum chambers 21, return air chamber 22, and described plenum chamber 21 has air-supply 21A and communication machine room interlinks; Described return air chamber 22 has fresh wind port 22A and atmosphere interlinks, return air inlet 22B and communication machine room interlinks, condensation exhaust mouth 22C and atmosphere interlink; Having port 24 between described plenum chamber 21, return air chamber 22 interlinks; On casing 20, also have the valve plate 23 that can turn round between 2 stations, be used to change gas circuit:
When being positioned at station 1. the time, port 24 and return air 22B being interlinked and new wind 22A and condensation exhaust mouth 22C are interlinked;
When being positioned at station 2. the time, port 24 and fresh wind port 22A being interlinked and return air inlet 22B and condensation exhaust mouth 22C are interlinked;
In described casing 20, refrigerating plant 10, heating combined equipment 30 are housed;
As Fig. 4, refrigerating plant comprises evaporimeter 11, pressure fan 12, compressor 13, condenser fan 14, condenser 15, gas-liquid separator 16, the outlet of compressor 13 links to each other through the inlet of condenser 15 with evaporimeter 11, the outlet of evaporimeter 11 links to each other through the inlet of separator 16 with compressor 13 through gas-liquid, condenser fan 14 is positioned at condenser 15 1 sides, pressure fan 12 is positioned at evaporimeter 11 1 sides, and the outlet of pressure fan 12 is through dividing plate 21D and evaporimeter 11 interlink (as Fig. 1);
Evaporimeter 11, pressure fan 12 all are arranged in plenum chamber 21, and evaporimeter 11 is positioned at the air outlet 21A place of plenum chamber 21, and the air inlet of pressure fan 12 communicates with port 24, and the air outlet of pressure fan 12 communicates with air outlet 21A through evaporimeter 11,
Condenser fan 14, condenser 15 all are arranged in the condensation exhaust mouth 22C place of return air chamber 22,
Refrigerating plant 30 comprises heater, is positioned at evaporimeter 11 1 sides of plenum chamber 21.
Screen pack 25 is housed on port 24; On air outlet 21A, fresh wind port 22A, return air inlet 22B, screen pack is housed.
Valve plate 23 is positioned on the valve shaft 26, and YE 27 is housed on valve shaft 26.
At fresh wind port 22A place sensor 28A is housed, sensor 28 is housed at return air inlet 22B place.
The utility model adopts refrigeration to add auxiliary electrically heated refrigeration, heat mode of operation and aeration-cooling mode of operation, to satisfy the needs of annual four seasons operation.When indoor air temperature is higher than the room design temperature, unit starting refrigeration work pattern; When indoor air temperature is lower than the room design temperature, the heating of unit starting auxiliary electrical.Be higher than the room design temperature and outdoor temperature when suitable at indoor air temperature, adopt aeration-cooling mode of operation.The valve plate 23 that this unit comprises refrigeration, heats, ventilating system and change wind path are used, regulate wind path according to the variation of outside air temperature:
The refrigeration, valve plate at station 1., when indoor air temperature is higher than the room design temperature, the indoor need lowered the temperature, and unit is pressed the cooling condition running, at this moment, pressure fan 12, compressor 13, condenser fan 14 actions, auxiliary electrical heating 30 is closed, and the flow of refrigerant direction is (shown in Fig. 4 upward arrow.) be: discharge high pressure, high-temperature gas from compressor 13, flow into condenser 15 (adopting condenser coil in the present embodiment), in condenser 15, be condensed fan 14 with the external environment blows air over, condensing agent is condensed into the liquid of HTHP, drying filter 17, expansion valve 18, cold-producing medium after the throttling step-down, becomes the refrigerant liquid inflow evaporator 11 (adopting evaporation coil in the present embodiment) of low-temp low-pressure in expansion valve 18; Cold-producing medium is drawn the heat that room air passes in evaporimeter 11 and the gas that becomes low-temp low-pressure flows into vapour liquid separator, in this step, indoor return air is through return air inlet 22B is blown over evaporimeter 11 quilt coolings by pressure fan 12 after, send into indoor from 21A, to reduce indoor air temperature, reach the refrigeration purpose; Cold-producing medium enters compressor 13 isolate unevaporated refrigerant liquid in vapour liquid separator 16 after; Cold-producing medium is discharged be compressed into the gas of HTHP in compressor 13 after, enters condenser 15.Circulation so again and again, freezing, (among Fig. 4, the effect of pressure switch 19A is to protect compressor 13 by the highest pressure at expulsion and the minimum pressure of inspiration(Pi) of setting compressor 13, guarantees system safety operation; Temperature-sensitive bag 19 is used to survey the temperature of evaporimeter 11 outlet cold-producing mediums; Outer balance pipe 19B mainly is the transmission diaphragm bottom of the pressure of evaporimeter 11 ports of export being introduced expansion valve 18).At this moment, air is only in indoor circulation, and route is that air sucks from return air inlet 22B, through port 24, pressure fan 12,, after evaporimeter 11 coolings, deliver to indoor from air outlet 21A; Outdoor air sucks 22 from fresh wind port 22A, discharge outdoor through exhaust outlet 22C condenser 15 coolings, the blower fan 14 that is condensed, survey on the housing of face at 2 of condenser, can have shutter, to enter a large amount of air from here to return air chamber 22, discharge by condenser fan 14 through condenser 15, to cool off this condenser 15.Aperture 22D among Fig. 3 is a cooling vent, is used for discharging the air in cooling compressor 13 and electric control element chamber (Fig. 2 compressor 13 left sides).
Heat, valve plate at station 1., when indoor air temperature is lower than the room design temperature, unit starting auxiliary electrical heating, 1. the mode air is only in indoor circulation press valve plate 23 stations, unit is pressed the power save mode heating condition and is turned round.When unit auxiliary electrical heating operation, compressor 13, condenser fan 14 stop; 30 actions of pressure fan 12, electric heater. indoor return air after electric heater 30 heating, send into by pressure fan 12 indoor, the room air mixed heat transfer, improve indoor air temperature, and room air is delivered to blower fan 12 through return air inlet 22B, port 24, circulates, thereby reaches the purpose that heats.
Ventilate, valve plate station 2., when outdoor temperature suitable (approximate indoor temperature), utilize outdoor cool air, aeration-cooling, air is through outdoor, indoor circulation, at this moment, unit only moves pressure fan 12, and condensation exhaust machine 14, compressor 13 disconnects, wind is from fresh wind port 22A, in port 24, pressure fan 12, air outlet 21A inlet chamber, with from return air inlet 22B, exhaust outlet 22C room air is rejected to outdoorly, carry out the purpose that heat exchange reaches cooling by new wind of direct introduction and room air, with energy efficient.By the temperature of the inside and outside air of measuring cell, the position of adjusting valve plate 23, but the unit multifunctional working reaches purpose of energy saving with minimizing energy consumption, reduction operating cost.
This device can manually and automatically move.When need move automatically, can settle temperature sensor and set up automatic control circuit at each ventilating opening to control the automatic work of various patterns, for example sensor 28A is housed at described fresh wind port 22A place; At described return air inlet 22B place sensor 28 is housed.
Measure the air themperature that enters the air-conditioning unit by outside atmosphere with sensor 28A, after sensor 28A records air themperature, signal is passed to central controller in the automatic control circuit, by central controller to the signal comparison process after, pass to the YE 27 of valve plate 23 and control the action of air-valve plate 23 and the operational mode of air-conditioning unit; Equally, measure the air themperature that enters unit by room air with sensor 28, after sensor 28 records air themperature, signal is passed to central controller, after the signal comparison process, determine to freeze or heat, and the action of definite actuator 27, the action of valve plate 23 and the operational mode of air-conditioning unit controlled; Reach automatic control.Screen pack 25 (Fig. 1) is housed on described port 24; On described air outlet 21A, fresh wind port 22A, return air inlet 22B, screen pack is housed.
As Fig. 5,6, valve plate 23 is positioned on the valve shaft 26, and actuator 27 is equipped with in the end of valve shaft 26, and the actuator 27 of present embodiment is a YE, and its model is that Switzerland produces LM230-4Nm.By instruction, these valve shaft 26 swings of these actuator 27 operations make valve plate 23 be in 2 stations, with the change gas circuit.Unit directly is installed on the exterior wall of communication machine room, and air outlet 21A, return air inlet 22B communicate with indoor.After unit is installed,, install and need not the professional and technical personnel as long as directly connect with the mains and can use, when will mobile unit,, easy and simple to handle as long as remove power supply.

Claims (5)

1, communication machine room special air conditioner unit comprises casing (20), it is characterized in that:
Described casing (20) has 2 independent plenum chambers (21), return air chamber (22), and described plenum chamber (21) has air outlet (21A) and interlinks with communication machine room; Described return air chamber (22) has fresh wind port (22A) and atmosphere interlinks, return air inlet (22B) interlinks with communication machine room, condensation exhaust mouth (22C) interlinks with atmosphere; Having port (24) between described plenum chamber (21), return air chamber (22) interlinks; On casing (20), also have the valve plate (23) that can turn round between 2 stations,
In described casing (20), refrigerating plant (10), heating combined equipment (30) are housed;
Described refrigerating plant comprises evaporimeter (11), pressure fan (12), compressor (13), condenser fan (14), condenser (15), gas-liquid separator (16), the outlet of described compressor (13) links to each other through the inlet of condenser (15) with evaporimeter (11), the outlet of described evaporimeter (11) links to each other through the inlet of gas-liquid separator (16) with compressor (13), described condenser fan (14) is positioned at condenser (15) one sides, and described pressure fan (12) is positioned at evaporimeter (11) one sides;
Described evaporimeter (11), pressure fan (12) all are arranged in plenum chamber (21);
Described condenser fan (14), condenser (15) all are arranged in return air chamber (22);
Described refrigerating plant (30) comprises heater, and described heater (30) is positioned at plenum chamber (21).
2, communication machine room special air conditioner unit according to claim 1 is characterized in that:
Described evaporimeter (11) is positioned at the air outlet (21A) of plenum chamber (21) and locates, the air inlet of described pressure fan (12) communicates with port (24), the air outlet of described pressure fan (12) communicates with air outlet (21A) through evaporimeter (11), described condenser fan (14), condenser (15) all are arranged in the condensation exhaust mouth (22C) of return air chamber (22) to be located, and described heating combined equipment (30) is positioned at a side of the evaporimeter (11) of plenum chamber (21).
3, communication machine room special air conditioner unit according to claim 1 and 2 is characterized in that:
Screen pack (25) is housed on described port (24); On described air outlet (21A), fresh wind port (22A), return air inlet (22B), screen pack is housed.
4, communication machine room special air conditioner unit according to claim 1 and 2 is characterized in that:
Described valve plate (23) is positioned on the valve shaft (26), and actuator (27) is housed on described valve shaft (26).
5, communication machine room special air conditioner unit according to claim 1 and 2 is characterized in that:
Locate to be equipped with sensor (28A) at described fresh wind port (22A); Locate to be equipped with sensor (28) at described return air inlet (22B).
CN 200420092820 2004-09-17 2004-09-17 Air conditioning unit for communication machine room Expired - Lifetime CN2742325Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420092820 CN2742325Y (en) 2004-09-17 2004-09-17 Air conditioning unit for communication machine room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420092820 CN2742325Y (en) 2004-09-17 2004-09-17 Air conditioning unit for communication machine room

Publications (1)

Publication Number Publication Date
CN2742325Y true CN2742325Y (en) 2005-11-23

Family

ID=35477794

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420092820 Expired - Lifetime CN2742325Y (en) 2004-09-17 2004-09-17 Air conditioning unit for communication machine room

Country Status (1)

Country Link
CN (1) CN2742325Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103121391A (en) * 2012-11-15 2013-05-29 柳州易舟汽车空调有限公司 Integrated type motor-driven air conditioner
CN109595716A (en) * 2018-11-27 2019-04-09 陈玉标 A kind of water cooling air conditioner in machine room of the anti-blowback of lower blast type into dirt
CN110360621A (en) * 2018-04-09 2019-10-22 宁波方太厨具有限公司 Air in kitchen regulating system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103121391A (en) * 2012-11-15 2013-05-29 柳州易舟汽车空调有限公司 Integrated type motor-driven air conditioner
CN103121391B (en) * 2012-11-15 2015-12-02 柳州易舟汽车空调有限公司 Integral electric air conditioner
CN110360621A (en) * 2018-04-09 2019-10-22 宁波方太厨具有限公司 Air in kitchen regulating system
CN110360621B (en) * 2018-04-09 2021-02-26 宁波方太厨具有限公司 Kitchen air conditioning system
CN109595716A (en) * 2018-11-27 2019-04-09 陈玉标 A kind of water cooling air conditioner in machine room of the anti-blowback of lower blast type into dirt

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20140917

Granted publication date: 20051123