Background technology
The heating of electronic information system machine rooms project is mainly derived from the heat that the information technoloy equipment such as server, the network equipment in machine room distributes in running, and the heat distributing in the electric equipment operation process such as electric substation, switchgear house, UPS battery chamber.The feature of these equipment heatings is that equipment is concentrated, and caloric value is large, operation continuously, and caloric value keeps constant substantially throughout the year.Keep in machine room and electric room in air themperature in certain scope, this just needs a large amount of cold wind that heat is taken away.Data center generally adopts special air conditioning for device room, and refrigeration system needs long-term stable operation, and air-conditioning need to compressor be all in operating condition throughout the year, and energy consumption is high.
A kind of machinery room energy-saving air conditioner disclosing as patent 200920105584.3 in addition, this kind of heat exchange mode adopts direct wall-type heat exchange, it is room air-heat exchanger-outdoor air, can supplement and be applied to the season that temperature is lower, but volume is large, take more space, installation and maintenance inconvenience cannot be freezed in the time that outdoor temperature is higher.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, and a kind of used in communication machine room energy saving integrated air-conditioning is provided.
The purpose of this utility model is achieved through the following technical solutions:
Used in communication machine room energy saving integrated air-conditioning, comprise mechanical refrigeration system and indirect heat exchange system, described mechanical refrigeration system comprises the frequency-changeable compressor of evaporimeter, condenser and UNICOM's evaporimeter and condenser, and that described indirect heat exchange system comprises is indoor, outdoor heat exchanger and UNICOM is indoor, the circulating pump of outdoor heat exchanger; Described indoor heat exchanger and evaporimeter front and back are against installation, and front face area is identical, and described outdoor heat exchanger and condenser front and back are against installation, and front face area is identical.
Preferably, offer inner side gas returning port on described air-conditioning, on the gas returning port of described inner side, be connected with pipeline, the described pipeline other end is arranged on the hot blast of indoor server and concentrates mouth.
Preferably, between described indoor, outdoor heat exchanger, do not freeze water liquid by circulation and transmit heat.
Preferably, described air-conditioning also comprises the controller for controlling mechanical refrigeration system and the operation of indirect heat exchange system.
The beneficial effects of the utility model are mainly reflected in: cooling to server air-out, and server hot blast can directly be got back to return air inlet for air-conditioner by pipeline, and return air temperature is high, has greatly improved the heat exchange efficiency of air-conditioning, improves air-conditioning Energy Efficiency Ratio.A set of indirect heat exchange system that this air-conditioning is inner also integrated, in the time that outside air temperature is lower, can move indirect heat exchange system, makes inner air and outer air carry out exchange heat, reduces the load of compressor cooling, has reduced compressor operating time, greatly reduces energy consumption.
Detailed description of the invention
The utility model has disclosed used in communication machine room energy saving integrated air-conditioning, comprises mechanical refrigeration system and indirect heat exchange system, and two cover systems can work alone separately, also can work together.As shown in Figure 1, the both sides of described air-conditioning are respectively arranged with air port, and a crosswind mouth is with respect to indoor server end setting, i.e. air port, inner side.Otherwise be air port, outside.
In described air-conditioning, be provided with for using the air of server end and the dividing plate 7 of isolating as the outside air of low-temperature receiver.
Described mechanical refrigeration system comprises the frequency-changeable compressor 1 of evaporimeter 3, condenser 5 and UNICOM's evaporimeter 3 and condenser 5, and that described indirect heat exchange system comprises is indoor, outdoor heat exchanger and UNICOM is indoor, the circulating pump of outdoor heat exchanger; Described indoor heat exchanger 4 is identical with evaporimeter 3 front face areas, and front and back are against installation, and described outdoor heat exchanger 6 is identical with condenser 5 front face areas, and front and back are against installation.Before and after the above against facies digitales dorsales manus relatively against.
In described air-conditioning, be provided with temperature sensor, described temperature sensor is connected with controller.Described controller can control mechanical refrigeration system and indirect heat exchange system is carried out separately or simultaneously operation.
Below set forth this air conditioner refrigerating principle:
The server out return air of heat passes through evaporimeter 3 and indoor heat exchanger 4, heat is passed to the non freezing solution in cold-producing medium and the indoor heat exchanger 4 in evaporimeter 3, cold-producing medium is driven through throttling arrangement and is entered into condenser 5 by frequency-changeable compressor 1, non freezing solution is driven by circulating pump 2, enter outdoor condenser 5, heat is taken away by outdoor cold source air again, between interior gas and outer gas, there is no circulation of air.
Non freezing solution circulation indirect heat exchange system is carried out heat exchange by circulation non freezing solution between interior gas, outer gas side sensible heat exchanger separately.The cold air-conditioning (refrigeration air-conditioner) of driven compressor, be by the refrigerant after the evaporator evaporation heat absorption of interior gas side with after compressor compresses, make its condensing heat release of condenser of gas side outside, thereby realize circularly cooling.Interior gas, outer gas side refer to respectively the both sides of dividing plate 7, with respect to server end be inner side, otherwise be outside.
The below lower course of work of the present utility model of summary:
Generally, this air-conditioning will preferentially use indirect heat exchange system, in the time that indirect heat exchange system can not meet the demands, will start mechanical refrigeration system.
Native system object is that server intake air is maintained to setting value, after temperature sensor detected temperatures, signal is sent to controller, meets in the situation of indirect heat exchange system service condition if controller detects judgement, starts indirect heat exchange system; Work as excess Temperature, while only depending on " indirect heat exchange system " cannot maintain setting value, enable " compressor mechanical refrigeration ".
This control is according to the relation of outdoor air inlet temperature and server outlet air temperature, is automatically implemented by controller: when outdoor temperature is during higher than server air outlet temperature, indirect heat exchange system is not moved, and just moves mechanical refrigeration system; When outdoor temperature is during lower than server air outlet temperature, indirect heat exchange system can be moved, and non freezing solution circulating pump is opened, now suitably reduction of speed of frequency-changeable compressor, and minimizing machine made cold, realizes energy-conservation; When outdoor temperature is enough low, only indirect heat exchange system just can maintain server inlet temperature in setting value, and mechanical refrigeration can be closed completely, stops compressor operating, thereby realizes maximum energy-conservation.
Air-conditioning in the utility model is from applying, on the gas returning port 8 of inner side, be designed with pipe connecting structure, after the hot blast of indoor server can being concentrated, get back to air-conditioning by pipeline, be different from the mode that existing machine room air is got back to air-conditioning, realize return air temperature high, heat exchange efficiency is good, the time length of indirect heat exchange mode operation and effect of good energy-conserving effect.Two cover systems in this air-conditioning can be accomplished to move simultaneously, and refrigerating efficiency is high.
The utility model still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, within all dropping on the claimed scope of the utility model.