Full sensible heat energy-saving machine room/rack Special precision air conditioner
This technology relates to a kind of air conditioner, specifically, it is that the air in the internally installed racks having electrical equipment such as shielding rack, server cabinet, UPS rack, comprehensive wiring rack, computer digital animation room or machine room (cooled space) is carried out precision, thermoregulator full sensible heat energy-saving machine room/rack Special precision air conditioner energy-conservation, efficient.
Computer digital animation rack is typically placed in a special room.The electrical equipment operationally temperature such as server in computer digital animation rack, CPU, hard disk, power supply are higher.In order to air in rack, electrical equipment dispels the heat, conventional method is installation computer digital animation machine room Special precision air-conditioning in special room, the heat of self is dissipated in room by i.e. computer digital animation rack, by the machine room Special precision air-conditioning in room, heat is taken away again, by reducing the temperature of whole room space to reduce the temperature of each computer digital animation rack, but the cold of the bigger needs of room space is bigger, the actual cold that possible room needs for the computer digital animation rack of some high heat densities is more great many times than computer digital animation rack demand cold, the instream factor of air-conditioning thus can be made to be substantially reduced, the most very consume energy, and the general volume ratio of machine room Special precision air-conditioning is bigger, greatly occupy the effective usable floor area in machine room.
Renewal along with technology; occur in that again (row level) precision air conditioner between row; it is usually placed in often arranges in the middle of rack side or rack; install against rack; although increasing in the utilization rate of energy; use before and after computer digital animation rack, form cold and hot passage; the utilization rate making air conditioner energy reaches 80%; because its cold and hot passage takies bigger space at computer digital animation outside cabinet and is formed; the most cold and hot passage itself externally just has greatly the loss of more energy due to space, bad the most also has outer surface dew condensation phenomenon if processing.
Also rack special air conditioner is had at present in industry, it uses direct-evaporation-type refrigeration modes, although capacity usage ratio is higher, but sensible heat ratio can not reach 100%, general maximum can only achieve about 80-90%, machine in-cabinet temperature so may be made to be less than machine dewpoint temperature, thus produce dew condensation phenomenon, and it is electronic component in rack, if there being condensation will cause the problems such as the damage of electrical equipment, electric leakage；The most this kind of rack special air conditioner is typically mounted on rack side door position, and in rack, air current composition is easily created cold and hot passage short circuit phenomenon in use, causes machine in-cabinet temperature the most uneven, it is impossible to meet high heat density cabinet temperature needs
If additionally using the cabinet air conditioner of wind pipe type, be exactly the hot blast of rack is drawn onto by airduct after air-conditioning outside rack processes, cold air is delivered to rack again in lower the temperature, this series products is need to be mounted so that airduct will make equipment in machine room install more complicated, what the cold of cabinet air conditioner own just compared simultaneously is little, airduct is used to connect the problem that will there is energy loss again, air-conditioning type selecting will great load capacity, additionally airduct itself there is also air leakage phenomena, and the cleanliness factor in rack can not be completely secured.
During particularly with shielding rack application, owing to rack itself needs have shielded particular requirement, all shielding processing necessary with external connection in rack, in above-mentioned industry, the air-conditioning type of application all cannot meet temperature control requirement and the requirement of shielding in rack simultaneously, only uses the full sensible heat energy-saving machine room/rack Special precision air conditioner described in this technology could meet requirement.
Summary of the invention
The purpose of this technology is just to provide a kind of 100% cold and is completely used for reducing the temperature of air in rack, it is entirely sensible heat to lower the temperature to avoid interior of equipment cabinet air to condense simultaneously, runs sensible heat energy-saving machine room/rack Special precision air conditioner more energy-conservation, accurate, the most complete.
Full sensible heat energy-saving machine room/rack Special precision air conditioner, including compressor, vaporizer, expansion valve and the refrigeration system of condensation cooling system composition and coolant fluid reservoir, coolant fluid circulation pump and the cooling system of fan coil cooler composition, vaporizer has two-way tubing, flow in one tunnel tubing cold-producing medium, and flow in another road tubing coolant fluid；The pipe-line system of flowing cold-producing medium and compressor, expansion valve and condensation cooling system composition refrigeration system；The pipe-line system of flowing coolant fluid and coolant fluid reservoir, coolant fluid circulation pump and fan coil cooler composition cooling system；The coolant fluid reservoir of refrigeration system and cooling system, coolant fluid circulation pump are arranged on outside cooled space, and fan coil cooler is then arranged in cooled space；When system is run, the temperature of coolant fluid is not less than air dew point temperature in cooled space all the time.
The beneficial effect of this technology: during refrigeration system work, cold-producing medium absorbs the heat of coolant fluid under the effect of compressor and is evaporated when flowing through vaporizer, coolant fluid is lowered the temperature, coolant fluid after cooling flows through the fan coil cooler being positioned in the circulation air path of cooled space under the effect of pump, and the air in cooled space is lowered the temperature by fan coil cooler.Coolant fluid circulates in a cooling system, and the temperature of coolant fluid is not less than air dew point temperature in cooled space all the time, and full sensible heat is lowered the temperature, and in the space that is simultaneously cooled, air will not condense.Fan coil cooler is positioned at cooled space, only lowers the temperature the cooled interior volume that space is less, and does not lowers the temperature the relatively big room of cooled outside, the most energy-conservation, and ensure that the cooling-down effect to cooled space.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, makes the forced circulation flowing in cooled space after fan coil cooler is lowered the temperature of the air of high temperature arranging circulating fan in cooled space.Under the effect of circulating fan, fan coil cooler return air and air-supply form cold and hot passage in cooled space, air in cooled space all can be forced to flow through fan coil cooler and carry out cooling process so that in cooled space, the cooling-down effect of air is more preferably.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, when multiple stage is cooled spatial organization layout, being respectively provided with a fan coil cooler in each cooled space, be connected after parallel connection between each fan coil cooler composition a set of cooling system again with coolant fluid circulation pump, coolant fluid reservoir.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, it also includes controller, for detection and the Temperature Humidity Sensor of aerial temperature and humidity in controlling cooled space, for detecting and control the coolant fluid temperature sensor of coolant fluid temperature (F.T.), for detecting and control the coolant flow sensor of coolant fluid flow, being all connected with controller for detection and the liquid level sensor of coolant fluid level, the coolant fluid leakage sensors that whether has coolant fluid to leak for detecting cooling system；Controller the most respectively with coolant fluid circulation pump and the compressor of refrigeration system, condensation cooling system electrical connection, to control coolant fluid circulation pump and compressor, the work of condensation cooling system.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, makes high temperature air orderly forced circulation flowing in cooled space after fan coil cooler outer wall is lowered the temperature arranging circulating fan in cooled space；Circulating fan with carry power supply in cooled space and be connected, to ensure the work of circulating fan.Controller controls coolant fluid temperature (F.T.) and is consistently higher than in cooled space air dew point temperature stable in the standard value range set, and lowers the temperature guaranteeing sensible heat complete to air 100%.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, it also with include that controller carries out the data-interface of telecommunication.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, described coolant fluid is water.It is of course also possible to be other similar heat-conducting mediums such as freon.Freon can be HCFC class (being called for short HCFC) or hydrogen fluorohydrocarbon class (being called for short HFC) freon.
Above-mentioned full sensible heat energy-saving machine room/rack Special precision air conditioner, its condensation cooling system can require to use split type or monoblock type according to in-site installation again when using wind-cooling heat dissipating mode to use wind-cooling heat dissipating mode or water cooling method.
Accompanying drawing explanation
Fig. 1 is full sensible heat energy-saving machine room/rack Special precision air conditioner operation principle schematic diagram.
Fig. 2 is rack (cooled space) the internal structure explanation schematic diagram in Fig. 1.
Detailed description of the invention
Seeing Fig. 1,2 above-mentioned, this full sensible heat energy-saving machine room/rack Special precision air conditioner entirety is divided from outward appearance and is made up of three parts.External condensation heat sink part, mainly utilizes refrigeration principle to be cooled down by the transmission heat in rack (cooled space), mainly includes the condensation radiator 1 in refrigeration system.Host machine part, mainly utilizes refrigeration principle by the cooling of coolant fluid and to transmit cold to the rack 100 being positioned at room 200；Mainly include the coolant fluid reservoir 6 in the compressor 2 in refrigeration system, vaporizer 3, expansion valve 4, device for drying and filtering 5 and cooling system, coolant fluid circulation pump 7.One road pipeline flowing cold-producing medium of vaporizer 3, another road pipeline of vaporizer unites two into one with coolant fluid reservoir in the present embodiment.This road pipeline of flowing cold-producing medium is located in coolant fluid reservoir.Rack inner blower coiled pipe cooler part, mainly utilizes the coolant fluid cold transmitted to lower the temperature to rack server 101 grade, mainly includes fan coil cooler 8.
The compression process of refrigerastion by direct evaporation and coolant fluid is divided to cool process from workflow.By the compression refrigeration cool-down of direct-evaporation-type, the coolant fluid in coolant fluid reservoir is cooled down, and heat is transferred to outside, simultaneously cooled in coolant fluid reservoir coolant fluid is again in cold quantity transmission to rack, the heat of rack is taken back in coolant fluid reservoir simultaneously and cool down, so circulate work.
External condensation radiator is such owing to being different from traditional type air conditioner in machine room, need not lower the temperature integral room, and the temperature that 100% cryogenic energy utilization is in cooling rack, so being much smaller than traditional outdoor condensation radiator, the costs such as so first cost of investment, installation cost, operating cost are intended to significantly reduce, coolant fluid is also to use the media such as conventional water or freon, possesses effect of energy-conserving and environment-protective.
Function has been divided into three partial function units to realize owing to breaking the whole up into parts by the unit, so having, volume is little, it is little to take up room, mounting means advantage flexibly.Multiple condensation radiating mode can be selected according to in-site installation situation simultaneously, general use that air-cooled split type (condensation radiator uses air-cooled, and it is divided into installation with main frame), can also select to use air-cooled monoblock type (condensation radiator uses air-cooled, and makes monoblock type installation with main frame) or water-cooled (condensation radiator uses water-cooled).As in figure 2 it is shown, when multiple cabinet combination are arranged, have multiple circulation air path with riser 105 isolation between each rack；Exquisite cabinet air conditioner part only takes up a part of position that each circulation air path inner bottom part is of little use can produce cold and hot passage in rack, keeps good down cycles.When multiple cabinet combination are arranged, it is arranged between the fan coil cooler in each rack circulation air path after can passing through coolant fluid circuit parallel connection, then communicates with coolant fluid reservoir.When coolant fluid circulation pump 7 works, coolant fluid cooled in coolant fluid circulation pump is after each fan coil cooler, then is back to coolant fluid reservoir.Circulation air path includes being positioned at the cold air duct 102 that rack is anterior, it is positioned at rack rear portion and there is hot-air channel 103, rack server carries fan 106 and under the effect of the circulating fan 104 of bottom in rack, and the air in rack flows through fan coil cooler and is cooled.Server carries fan 106 and is mainly used in carrying out book server forcing cooling, and the heat of each server internal is discharged.
Controller electrically connects with compressor, pump, blower fan respectively, to control the work of compressor, pump, blower fan.For detecting and control the rack Temperature Humidity Sensor of aerial temperature and humidity in rack, being all connected with controller for detecting and control the coolant fluid temperature sensor etc. of coolant fluid temperature (F.T.)；
Owing to this full sensible heat energy-saving machine room/rack Special precision air conditioner uses the cooling method of indirect type, so it is not bigger by the fluctuation of direct-evaporation-type cryogenic temperature, the impact of the undesirable elements such as system evaporating temperature is too low and uncontrollable, controller can effectively control coolant fluid temperature (F.T.) and can effectively conduct heat to take away heat always above the air dew point temperature of rack and with rack, so that air-conditioning works air never condenses when ensureing in the way of 100% full sensible heat is lowered the temperature in rack.
Coolant fluid reservoir and fluid line in cooling system all use isothermal holding, apart from short, No leakage, heat-insulating property are much larger than connecting airduct, the loss rate of cold is substantially zeroed, add and refrigeration system condenses the refrigerator pipes of radiator be high temperature cooling part and there is not cold draining phenomenon, so the cold basic 100% in this indirect cooling procedure is for cooling machine cabinet, efficiency is greatly enhanced.Owing to compressor, coolant reservoir and pump are all integrated in indoor host computer, so installing the easiest.In-site installation at most has only to connect two refrigeration system pipelines and two coolant fluid lines, it is not necessary to install complicated airduct or other connection lines etc..
Controller can carry out temperature control according to the coolant fluid standard temperature set and (control coolant fluid and be maintained at certain temperature, and it is consistently higher than the air dew point temperature of rack, to ensure 100% full sensible heat amount transmission), unit also possesses the warning functions such as alarm for high voltage, low pressure alarming, water leakage alarm, low-water alarm, possess the functions such as RS485 remote communicating function, large-size screen monitors LED display water tank temperature, fault message, running status.