Summary of the invention
The present invention provides a kind of IT cabinet equipped with refrigeration unit, by being set to the refrigeration unit of interior of equipment cabinet, directlyTo the server for being placed on interior of equipment cabinet, accurately freezed, improves hot localised points problem.
The embodiment of the invention provides a kind of IT cabinet equipped with refrigeration unit, comprising:
Cabinet shell and at least one refrigeration unit；Wherein, the cabinet shell is equipped at least one cavity, and the systemCold unit is set in the cavity；
The IT cabinet is additionally provided with refrigerant inlet tube and refrigerant outlet tube；Each refrigeration unit includes expansionValve, evaporator, blower, inlet air temperature sensor, leaving air temp sensor and controller, one end of the expansion valve and the systemThe connection of cryogen inlet tube, the other end of the expansion valve are connect with the refrigerant input terminal of the evaporator；The evaporatorOutput of condenser is connected to the refrigerant outlet tube；The blower is set at the air outlet of the refrigeration unit；It is describedThe air inlet of the refrigeration unit is arranged in inlet air temperature sensor, and the leaving air temp sensor setting is single in the refrigerationAt the air outlet of member；The controller is sensed with the expansion valve, the evaporator, the blower, the inlet air temperature respectivelyDevice and the leaving air temp sensor are connect with the controller.
Further, cold wind air intake passage and hot wind air-out passage are equipped in the IT cabinet；The refrigeration unit goes outAir port is connected to the cold wind air intake passage, and the cold wind air intake passage is connected to the air inlet of the cavity, the cavityAir outlet is connected to the hot wind air-out passage, and the hot wind air-out passage is connected to the air inlet of the refrigeration unit.
Further, the refrigeration unit further includes drip tray, water pump, liquid-level switch and condensate water discharging mouth；It is described to connectWater pond is set to the lower section of the evaporator, and the water pump and the liquid-level switch are connect with the controller, the condensationWater discharge outlet is connected to the drip tray.
Further, the refrigeration unit further includes moisture absorption block, and the moisture absorption block is set to the evaporator and the windBetween machine.
Further, the expansion valve is electric expansion valve.
Further, the refrigeration unit further includes the communication interface for being communicated with upper control manager.
Further, the IT cabinet further includes condensate draining pipe, the condensate draining pipe and the refrigeration unitCondensed water outlet mouth connection.
By implementing the embodiment of the present invention, have the advantages that:
The embodiment of the invention provides a kind of IT cabinet equipped with refrigeration unit, including at least one cavity, and be set toAt least one intracorporal refrigeration unit of the chamber, each refrigeration unit are equipped with independent expansion valve, the controller of refrigeration unitAccording to the temperature data that inlet air temperature sensor and leaving air temp sensor acquire, the aperture of expansion valve is controlled, to control streamIt into the flow of the refrigerant of refrigeration unit, directly radiates to the heat source for being placed on inside cavity, realizes accurate refrigeration, simultaneouslyThe number that according to the distribution situation of heat source, can suitably increase refrigeration unit in the cavity of the IT cabinet reinforces refrigeration effect,Improve hot localised points problem, furthermore when being placed with multiple refrigeration units, because the temperature of different zones in cabinet is different, setting existsThe temperature sensor temperature collection data of the refrigeration unit of different location are also different, so the aperture of the expansion valve of each refrigeration unitAlso variant, and then different refrigeration effects is generated, realize otherness refrigeration.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unit；
Fig. 2 is another structural schematic diagram of the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unit；
Fig. 3 is the structural schematic diagram of the refrigeration unit in the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unit；
Fig. 4 is another structural representation of the refrigeration unit in the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unitFigure；
Fig. 5 is the another structural representation of the refrigeration unit in the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unitFigure；
Fig. 6 is the interface structure signal of the refrigeration unit in the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unitFigure；
Fig. 7 is the scale diagrams of the refrigeration unit in the IT cabinet provided in an embodiment of the present invention equipped with refrigeration unit；
Description of symbols: cabinet shell 10, refrigeration unit 20, cold wind air inlet duct 11, hot wind exhaust passage 12, refrigerantInlet tube 13, refrigerant outlet tube 14, condensate draining pipe 15, cavity 16, expansion valve 21, evaporator 22, blower 23, air inletTemperature sensor 24, leaving air temp sensor 25, drip tray 26, water pump 27, liquid-level switch 28, refrigerant outlet 29, refrigerantImport 30, moisture absorption block 31, electric control box 32, condensate water discharging mouth 33, communication interface 34 and hose connection 40.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, a kind of IT machine equipped with refrigeration unit that one embodiment of the invention providesCabinet includes: cabinet shell 10 and at least one refrigeration unit 20；Wherein, cabinet shell 10 is equipped at least one cavity 16, and makesCold unit 20 is set to inside cavity 10；
It should be noted that installation site of the refrigeration unit 20 in IT cabinet, can set according to cabinet server etc.Standby installation site and heat source distribution carry out any adjustment；
Preferably, the quantity of refrigeration unit 20 is 3, is respectively placed at the upper, middle and lower in the IT cabinet, and anyThe cavity for installing server, power module, host controller or other function module is formed between two refrigeration units 2016。
Cabinet shell 10 is equipped with refrigerant inlet tube 13 and refrigerant outlet tube 14；Each refrigeration unit 20 includes expansion valve21, evaporator 22, blower 23, inlet air temperature sensor 24, leaving air temp sensor 25 and controller, one end of expansion valve 21 withRefrigerant inlet tube 13 is connected to, and the other end of expansion valve 21 is connect with the refrigerant input terminal of evaporator 22；The system of evaporator 22Cryogen output end is connected to refrigerant outlet tube 14；Blower 23 is set at the air outlet of refrigeration unit 20；Inlet air temperature sensingThe air inlet of refrigeration unit 20 is arranged in device 24, and leaving air temp sensor 25 is arranged at the air outlet of refrigeration unit 20；ControlDevice processed respectively with expansion valve 21, evaporator 22, blower 23, inlet air temperature sensor 24 and leaving air temp sensor 25 with controlDevice connection.
Because each refrigeration unit 20 is equipped with independent expansion valve 21, the controller of refrigeration unit is sensed according to inlet air temperatureThe temperature data that device 24 and leaving air temp sensor 25 acquire, controls the aperture of expansion valve 21 and the revolving speed of blower 23, thusControl flows into the flow of the refrigerant of refrigeration unit 20, realizes refrigeration, because the temperature of different zones in cabinet is different, is arranged notIt is also different with the temperature sensor temperature collection data of the refrigeration unit 20 of position, so the expansion valve 21 of each refrigeration unit is openedThe revolving speed of degree and blower 23 is also variant, and then according to the temperature of the location of refrigeration unit, realizes otherness refrigeration, systemIt is cold more accurate
You need to add is that being equipped with a column, refrigerant outlet tube 14 and refrigerant feed liquor at the rear portion of cabinet shell 10Pipe 13 hides setting in column, to not interfere with server wiring cable, is not take up portion of the server in cavity 16Affix one's name to space.
It is furthermore preferred to one end of expansion valve 21 is connected to the refrigerant inlet 30 of refrigeration unit 20, it is then single in refrigerationA hose connection 40 is connect at the refrigerant inlet 30 of member 20, is connected to by hose connection 40 with refrigerant inlet tube 13, similarlyThe output of condenser of evaporator 22 is connected to the refrigerant outlet 29 of refrigeration unit 20, then in the refrigeration of refrigeration unit 20A hose connection 40 is connect at agent import 30, is connected to by hose connection 40 with refrigerant outlet tube 14；It is provided by the invention to be equipped withThe IT cabinet of refrigeration unit, the refrigeration unit 20 compared with traditional refrigeration air-conditioner in the ranks, in IT cabinet provided by the inventionCan fast assembling-disassembling, can according to the distribution situation of actual loading adjust dispose, it is appropriate increase and decrease refrigeration unit number, realizeFlexible deployment, at the same it is very convenient in the maintenance in later period.
Preferably, cold wind air intake passage and hot wind air-out passage are equipped in cabinet shell 10；The air outlet of refrigeration unit 20It is connected to cold wind air intake passage, cold wind air intake passage is connected to the air inlet of cavity 16, the air outlet of cavity 16 and hot wind outlet airChannel connection, hot wind air-out passage are connected to the air inlet of refrigeration unit 20.Refrigeration unit 20 is by the warm in hot wind exhaust passage 12After wind detaches, hot wind is pumped into refrigeration unit 20 by the air inlet of refrigeration unit 20 and is freezed, by what is obtained after refrigerationCold wind flows into cold wind air inlet duct 11 through the air outlet of refrigeration unit 20, enters in cavity 16 in the air inlet by cavity 16,Cool down to the server placed in cavity 16, at this time cold wind become hot wind by the outlet of cavity 16 it is distinguished and admirable enter hot wind outlet airIt in road 12, then persistently repeats the above process, carries out circulation air-supply, realize the process of refrigeration.It is empty in the ranks in contrast to traditional utilizationThe mode freezed to the server being placed in cabinet is adjusted, embodiment provided by the invention is directly in interior of equipment cabinet to placementThe cavity of heat source is radiated more precisely, and heat dissipation effect is more preferable.
Preferably, refrigeration unit 20 further includes drip tray 26, water pump 27, liquid-level switch 28 and condensate water discharging mouth 33；It connectsWater pond 26 is set to the lower section of evaporator 22, and water pump 27 and liquid-level switch 28 are connect with controller, condensate water discharging mouth 33 withDrip tray 26 is connected to.The condensed water generated in 20 course of work of refrigeration unit, can instill in drip tray 26, when liquid-level switch 28 is examinedWhen measuring the water level in drip tray 26 more than preset water level, controller can control water pump 27 and be drained, and condensed water is passed throughThe condensate water discharging mouth 33 of refrigeration unit 20 is discharged to outside refrigeration unit 20.
Preferably, refrigeration unit 20 further includes moisture absorption block 31, and moisture absorption block 31 is set between evaporator 22 and blower 23.When increasing because of ambient air humidity fluctuation causes the cold air being discharged by evaporator 22 to carry a small amount of condensing drip secretly, moisture absorption block 31This part water droplet carried secretly in cold air can be absorbed, avoids server by the influence of the moisture in air.It is inhaled in moisture absorption blockThe moisture of receipts eventually gradually reducing with cabinet inner circulating air humidity, eventually evaporates back in circulation air again, fromAnd maintain the moisture stable of circulation air.
Preferably, expansion valve 21 is electric expansion valve 21, and refrigeration unit 20 further includes electric control box 32, controller settingIn electric control box 32.
As shown in Figure 6, it is preferred that refrigeration unit 20 further includes that the communication for being communicated with other refrigeration units 20 connectsMouth 34.By communication interface 34 between each refrigeration unit 20, can be communicated with host controller, host controller can connectThe collected temperature data of different refrigeration units 20 is received, according to the temperature data of different refrigeration units 20, it is single to control different refrigeration21 aperture of expansion valve of member 20 realizes collaboration refrigeration, furthermore can also count the single of cold wind air inlet duct 11 or hot wind exhaust passage 12In channel, the peak and minimum of the temperature data of acquisition, thus the temperature collection value that effective anomaly is higher or exception is relatively low,The information such as feedback transducer failure.
Preferably, IT cabinet further includes condensate draining pipe 15, and the condensation of condensate draining pipe 15 and refrigeration unit 20 is arrangedMouth of a river connection.Specifically, 33 one end of condensate water discharging mouth of refrigeration unit 20 is connected to drip tray 26, the other end external one is softInterface tube 40 is connected to by hose connection 40 with condensate draining pipe 15, wherein condensate draining pipe 15 is also to be arranged in cabinetIn the column of shell 10.
As shown in fig. 7, the refrigeration unit 20 of the IT cabinet provided by the invention equipped with refrigeration unit accounts for small volume occupancy,The space IT is few, only accounts for the height of 4U, 20 monomer refrigerating capacity of refrigeration unit is 6kW, and provided by the invention equipped with refrigeration unitThe cabinet shell 10 of IT cabinet can at most place 10 refrigeration units 20, and theoretical single cabinet maximum cooling capacity is up to 30KW.
The working principle of IT cabinet provided by the invention equipped with refrigeration unit is as follows:
When cabinet works, refrigeration unit 20 opens blower 23, will be located at the hot-air in hot wind exhaust passage 12 and is pumped into refrigerationIn unit 20, while the refrigerant of liquid is flowed by the refrigerant input terminal of evaporator 22 and is steamed from refrigerant inlet tube 13It sends out in device 22.The refrigerant of liquid absorbs rapidly the gasification of the heat in hot-air in the heat exchanger tube of evaporator, and heat is taken out ofCabinet, hot-air is cooling after evaporator 22 at this time, becomes cold air, and controls air-out direction by blower 23, Xiang Lengfeng intoAir duct 11 is blown, and and then cold air passes through the air inlet of cavity 16, is flowed into cavity 16, the service to being placed in cavity 16Device is cooled down, and cold air becomes in hot-air inflow hot wind exhaust passage 12 at this time.The inlet air temperature of each refrigeration unit 20 sensesDevice 24 acquires the temperature data of corresponding position and is transmitted to controller, and when temperature forward direction deviates preset value, controller control is swollenSwollen valve 21 tends to increase open degree to increase supply of the refrigerant to evaporator 22.Conversely, when temperature reversely deviates preset valueWhen, controller controls expansion valve 21 and tends to reduce open degree to reduce supply of the refrigerant to evaporator 22.It requires emphasisIt is during refrigeration unit 20 works, controller can be acquired according to leaving air temp sensor 25 and inlet air temperature sensor 24Temperature data, at any time adjust expansion valve 21 aperture, thus control flow into refrigeration unit 20 in refrigerant flow, same to time controlThe revolving speed of blower 23 processed, to realize otherness refrigeration according to the temperature of the location of refrigeration unit 20, avoid the formation of partHot spot.
The embodiment of the invention provides a kind of IT cabinet equipped with refrigeration unit, including at least one cavity, and be set toAt least one intracorporal refrigeration unit of the chamber, each refrigeration unit are equipped with independent expansion valve, the controller of refrigeration unitAccording to the temperature data that inlet air temperature sensor and leaving air temp sensor acquire, the aperture of expansion valve is controlled, to control streamIt into the flow of the refrigerant of refrigeration unit, directly radiates to the heat source for being placed on inside cavity, realizes accurate refrigeration, simultaneouslyThe number that according to the distribution situation of heat source, can suitably increase refrigeration unit in the cavity of the IT cabinet reinforces effect processed, changesFurthermore kind hot localised points problem when being placed with multiple refrigeration units, because the temperature of different zones in cabinet is different, is arranged notIt is also different with the temperature sensor temperature collection data of the refrigeration unit of position, so the aperture of the expansion valve of each refrigeration unitIt is variant, and then different refrigeration effects is generated, realize otherness refrigeration.
It is the preferred embodiment of the present invention above, it is noted that for those skilled in the art,Various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as this hairBright protection scope.