Utility model content
The utility model provides a kind of refrigeration control system of machine room, in order to avoid adopting outdoor fresh air refrigerating, improves the cleanliness factor of machine room air, and in order to reduce the energy consumption for cooling of machine room.
The refrigeration control system of the utility model machine room, comprising:
Be positioned at outdoor cooling tower, described cooling tower top is provided with blower fan;
The first surface cooler, the first water pump and the second surface cooler that by the first pipeline, connect successively and form closed cycle, wherein, described the first surface cooler is positioned at cooling tower inside, described the second surface cooler is positioned at return air inlet one side of machine room, for cooling machine room return air, described the first water pump pumps into the water in described the first surface cooler in described the second surface cooler;
Pressure fan, is positioned at air outlet one side of machine room, and cooling machine room return air is delivered to machine room;
Temperature sensor, be arranged at outdoor, for detection of outdoor temperature information;
Control device, is connected with described the first water pump signal with described temperature sensor respectively, when being less than the first temperature threshold of setting when outdoor temperature, controlling described the first water pump and opens.
The refrigeration control system of the utility model machine room, adopts full return air cooling, without the new wind filter of configuration, is conducive to improve the cleanliness factor of machine room air; And adopt indirect refrigeration mode that the air in machine room is cooling, be specially: in cooling tower, by cold air, the water in the first surface cooler is carried out cooling, by the first water pump, the cold water in the first surface cooler is pumped into the second surface cooler, the second surface cooler that is positioned at return air inlet one side carries out the air of machine room cooling, can keep the humidity of air in machine room constant; The refrigeration control system of the utility model machine room, only the first water pump and pressure fan acting, save the energy, improved energy utilization rate.
Preferably, described refrigeration control system, also comprises: be positioned at the collecting-tank and the spray equipment that is positioned at described the first surface cooler top of described the first surface cooler below, and the second water pump, wherein, described the second water pump pumps into described spray equipment by water in described collecting-tank;
Described control device, is further connected with described the second water pump signal, when being not less than the first temperature threshold of setting when outdoor temperature and being less than the second temperature threshold of setting, controls respectively described the first water pump and described the second water pump is opened.
The refrigeration control system of the utility model machine room, in cooling tower, increased spray equipment, when outdoor temperature is not less than the first temperature threshold of setting and is less than the second temperature threshold of setting, the heat exchange amount of cold air and the first surface cooler is inadequate separately, therefore increase spray cold water the water temperature in the first surface cooler is further reduced, obtain larger refrigerating capacity, now, only the first water pump, the second water pump and pressure fan acting, be beneficial to the saving energy.
Preferably, described refrigeration control system, also comprises:
The compressor, condenser coil, restricting element and the evaporimeter that by the second pipeline, connect successively and form closed cycle, in described the second pipeline, there is cold-producing medium, described condenser coil is positioned at the below of described spray equipment, and described evaporimeter is for cooling machine room return air;
Described control device, is further connected with described signal compressor, when being not less than the second temperature threshold of setting when outdoor temperature and being less than the 3rd temperature threshold of setting, controls respectively described the first water pump and described compressor and opens.
The refrigeration control system of the utility model machine room, increased a set of compressor refrigeration system, and condenser coil is positioned at cooling tower, when outdoor temperature is not less than the second temperature threshold of setting and is less than the 3rd temperature threshold of setting, open compressor and the first water pump, compressor circulation system and the surface cooler circulatory system are all for the air in cooling machine room, and compressor can partly be exported, and are also beneficial to the saving energy.
Preferably, described control device comprises and judges whether outdoor temperature is not less than the comparator of the 3rd temperature threshold of setting, and the processor being connected with described comparator signal, when outdoor temperature is not less than the 3rd temperature threshold of setting, described the second water pump controlled respectively by described processor and described compressor is opened.
In technical solutions of the utility model, control device is further used for when outdoor temperature is higher, for example summer is during higher temperature, only compressor assembly freezes, spray equipment shower water is to condenser coil, now condenser coil is equivalent to evaporative condenser, therefore, compares and still has energy-conservation advantage with traditional mechanical compression refrigeration system.
Preferably, to above-mentioned any refrigeration control system, also comprise:
Humidifier, is connected with described control device signal, for machine room return air is carried out to humidification;
When described control device is further used for relative humidity in described machine room and is less than the relative humidity threshold value of setting, control described humidifier and open.
In technical solutions of the utility model, increase a humidifier to the return air humidification of machine room, for keeping relative humidity in machine room in suitable state, be beneficial to the operation of information technoloy equipment in machine room.
The specific embodiment
In order to reduce the energy consumption for cooling of machine room, improve the air quality of machine room, the utility model provides a kind of refrigeration control method, Apparatus and system of machine room, in this technical scheme, adopt full return air cooling, without the new wind filter of configuration, be conducive to improve the cleanliness factor of machine room air; And adopt indirect refrigeration mode that the air in machine room is cooling, be specially: in cooling tower, by cold air, the water in the first surface cooler is carried out cooling, by the first water pump, the cold water in the first surface cooler is pumped into the second surface cooler, the second surface cooler that is positioned at return air inlet one side carries out the air of machine room cooling, can keep the humidity of air in machine room constant; The refrigeration control system of the utility model machine room, only the first water pump and pressure fan acting, save the energy, improved energy utilization rate.For making the purpose of this utility model, technical scheme and advantage clearer, below lift specific embodiment the utility model is described in further detail.
As shown in Figure 2, the refrigeration control system first example structure schematic diagram of the utility model machine room, described refrigeration control system comprises:
Be positioned at outdoor cooling tower 1, cooling tower top is provided with blower fan 11;
The first surface cooler 12, the first water pump 22 and the second surface cooler 21 that by the first pipeline, connect successively and form closed cycle, wherein, the first surface cooler 12 is positioned at cooling tower 1 inside, the second surface cooler 21 is positioned at return air inlet one side of machine room 10, for cooling machine room return air, the first water pump 22 pumps into the water in the first surface cooler 12 in the second surface cooler 21;
Pressure fan 3, is positioned at air outlet one side of machine room 10, and cooling machine room return air is delivered to machine room 10;
Temperature sensor 4, be arranged at outdoor, for detection of outdoor temperature information;
Control device 5, is connected with the first water pump 22 signals with temperature sensor 4 respectively, when being less than the first temperature threshold of setting when outdoor temperature, controlling the first water pump 22 and opens.
In the refrigeration control system of the utility model machine room, adopt full return air cooling, without the new wind filter of configuration, be conducive to improve the cleanliness factor of machine room air; And adopt indirect refrigeration mode that the air in machine room is cooling, be specially: in cooling tower 1, by cold air, the water in the first surface cooler 12 is carried out cooling, by the first water pump 22, the cold water in the first surface cooler 12 is pumped into the second surface cooler 21, the second surface cooler 21 that is positioned at return air inlet one side carries out the air of machine room cooling, can keep the humidity of air in machine room constant; The refrigeration control system of the utility model machine room, be applicable to outdoor temperature when lower, as while being less than 5 ℃, only the first surface cooler 12 carries out heat exchange with cold air in cooling tower 1, its refrigerating capacity is enough for reducing the temperature in machine room 10, and now, only the first water pump 12 and pressure fan 3 do work, save the energy, improved energy utilization rate.When outdoor temperature is during lower than 0 ℃, the water of cooling tower 1 bottom need to bleed off.
As shown in Figure 3, the refrigeration control system second example structure schematic diagram of the utility model machine room, described refrigeration control system, also comprise: the collecting-tank 13 and the spray equipment 14 that is positioned at the first surface cooler 12 tops that are positioned at the first surface cooler 12 belows, and second water pump 15, wherein, the second water pump 15 pumps into spray equipment 14 by water in collecting-tank 13;
Control device 5, is further connected with the second water pump 15 signals, when being not less than the first temperature threshold of setting when outdoor temperature and being less than the second temperature threshold of setting, controls respectively the first water pump 22 and the second water pump 15 is opened.
In the refrigeration control system of the utility model machine room, at the interior spray equipment 14 that increased of cooling tower 1, outdoor temperature raises, when outdoor temperature is not less than the first temperature threshold of setting and is less than the second temperature threshold of setting, as outdoor temperature is not less than 5 ℃ and while being less than 15 ℃, the heat exchange amount of cold air and the first surface cooler 12 is inadequate separately, therefore increasing spray cold water further reduces the water temperature in the first surface cooler 12, obtain larger refrigerating capacity, now, only the first water pump 22, the second water pump 15 and pressure fan 3 actings, be beneficial to the saving energy.
As shown in Figure 4, the refrigeration control system of the utility model machine room the 3rd example structure schematic diagram, described refrigeration control system, also comprises:
The compressor 61, condenser coil 62, restricting element 63 and the evaporimeter 64 that by the second pipeline, connect successively and form closed cycle, in the second pipeline, there is cold-producing medium, condenser coil 62 is positioned at the below of spray equipment 14, and evaporimeter 64 is for cooling machine room return air;
Control device 5, is further connected with compressor 61 signals, when being not less than the second temperature threshold of setting when outdoor temperature and being less than the 3rd temperature threshold of setting, controls respectively the first water pump 22 and compressor 61 is opened.
The refrigeration control system of the utility model machine room, increased a set of compressor refrigeration system, and condenser coil 62 is positioned at cooling tower 1, outdoor temperature raises, when outdoor temperature is not less than the second temperature threshold of setting and is less than the 3rd temperature threshold of setting, as outdoor temperature is not less than 15 ℃ and while being less than 30 ℃, now only depend on natural cooling source and the first surface cooler 12 heat exchange amounts inadequate, therefore, need to open compressor 61 and the first water pump 22, compressor circulation system and the surface cooler circulatory system are all for the air in cooling machine room, now compressor 61 can move by varying capacity, according to the temperature in machine room, reduce compression energy consumption, also be beneficial to the saving energy.
Preferably, shown in Fig. 4, the refrigeration control system of the utility model machine room the 4th embodiment, control device 5 comprises and judges whether outdoor temperature is not less than the comparator of the 3rd temperature threshold of setting, and the processor being connected with comparator signal, when outdoor temperature is not less than the 3rd temperature threshold of setting, the second water pump 15 controlled respectively by processor and compressor 61 is opened.
In the technical solution of the utility model, when outdoor temperature further raises, for example summer is during higher temperature, as while being not less than 30 ℃, now, compressor assembly refrigeration only, spray equipment 14 shower waters are to condenser coil 62, now condenser coil 62 is equivalent to evaporative condenser, therefore, compares and still has energy-conservation advantage with traditional mechanical compression refrigeration system.
The first temperature threshold, the second temperature threshold and the 3rd temperature threshold are rule of thumb set, need to meet the first temperature threshold and be less than the second temperature threshold, the second temperature threshold is less than the 3rd temperature threshold, as the first temperature threshold can be set as 5 ℃, the second temperature threshold can be set as 15 ℃, the 3rd temperature threshold can be set as 30 ℃, but the utility model is not limited to these concrete numerical value.
Shown in Fig. 4, the refrigeration control system of the utility model machine room the 5th embodiment, described refrigeration control system, comprises above-mentioned first any refrigeration control system of embodiment to the four embodiment, also comprises:
Humidifier 7, is connected with control device 5 signals, for machine room return air is carried out to humidification;
When control device 5 is further used for relative humidity in machine room and is less than the relative humidity threshold value of setting, control humidifier 7 and open.
In the technical solution of the utility model, increase a humidifier 7 to the return air humidification of machine room, for keeping relative humidity in machine room in suitable state, be beneficial to the operation of information technoloy equipment in machine room.
Shown in Fig. 4, in the refrigeration control system of above-mentioned the utility model machine room, the second surface cooler 22, evaporimeter 64, pressure fan 2 and humidifier 7 are not limited to the form of air-treatment unit, can be according to the feature flexible topology of data center's building, for example can be by the second surface cooler 22, evaporimeter 64, pressure fan 2 and humidifier 7 are arranged in whole face wall or utilize a room to arrange an air conditioner unit, and, the first temperature sensor 11 is not limit in outdoor installation site, as long as it is not affected by miscellaneous part and can detect outdoor temperature.In addition, inside first surface cooler 12 of cooling tower 1 and the position of condenser coil 62 can arrange arbitrarily, as long as the water of spray equipment 14 ejections can spray the first surface cooler 12 and condenser coil 62, cooling tower 1 can also comprise the water fender between blower fan 11 and spray equipment 14, and the blowoff valve that is arranged at collecting-tank 14.It is cooling that cooling tower 1 in the utility model refrigeration control system can carry out the first surface cooler nature in surface cooler circulation, can condenser coil be played to the effect of evaporative condenser when compressor assembly is worked again.Refrigeration control system of the present utility model has different energy saver modes according to different temperature ranges, for the feature of machine room refrigeration duty, can, in whole year operation regulatory function, meet the requirement of data center to refrigeration.In technical solutions of the utility model, described control device both can adopt software to realize and control function, also can realize and control function by hardware, while adopting hardware, control device comprises comparator and processor, comparator for outdoor temperature relatively respectively with the magnitude relationship of the temperature threshold of setting, as the first temperature threshold, the second temperature threshold or the 3rd temperature threshold, and processor is connected with comparator signal, for the different signal for comparator output, carry out the state of controlled circulation pump and compressor.
As shown in Figure 5, the first embodiment schematic flow sheet of the refrigeration control method of the utility model machine room, described refrigeration control method comprises:
Step 101, obtain current outdoor temperature information;
Step 102, judge whether outdoor temperature is less than the first temperature threshold of setting; If so, perform step 103, otherwise, step 101 returned to;
Step 103, control described the first water pump and open.
This embodiment method is applicable to outdoor temperature when lower, winter for example, if the first temperature threshold of setting is 5 ℃, when current outdoor temperature is less than 5 ℃, controlling the first water pump 22 opens, return air in machine room is cooling through the second surface cooler 21, then enters machine room by pressure fan, and the second surface cooler 21 absorbs return air heat, water temperature can be too not low, during the normal operation of the first water pump 22, can not freeze, when outdoor temperature is during lower than 0 ℃, the water of cooling tower 1 bottom should bleed off; Adopt the pattern of full return air, when utilizing outdoor cold source, avoided outdoor air to enter machine room 10, improved the air quality in machine room, and can keep preferably the relative humidity in machine room, in addition, the operate power of the first water pump 22 is very low, has reduced on the whole the energy consumption of machine room, has improved its energy utilization rate.
The second embodiment of the refrigeration control method of the utility model machine room, further comprises:
When outdoor temperature is not less than the first temperature threshold of setting and is less than the second temperature threshold of setting, control respectively described the first water pump 22 and described the second water pump 15 unlatchings.
This embodiment method is applicable to outdoor temperature when slightly high, for example, when spring and autumn, season was colder, if the first temperature threshold of setting is 5 ℃, the second temperature threshold of setting is 15 ℃, now current outdoor temperature is not less than 5 ℃ and be less than 15 ℃, controls the first water pump 22 and the second water pump 15 is opened, generally, when outdoor temperature is following lower than 4 ℃, need to prevent that the first water pump 22 and the second water pump 15 from freezing.It is very low that return air in machine room enters the operate power of machine room 10, the first water pumps 22 and the second water pump 15 by pressure fan 3 again through the second surface cooler 21 cooling, reduced the energy consumption of machine room, improved its energy utilization rate.
The 3rd embodiment of the refrigeration control method of the utility model machine room, also further comprises:
When outdoor temperature is not less than the second temperature threshold of setting and is less than the 3rd temperature threshold of setting, control respectively described the first water pump 22 and 61 unlatchings of described compressor.
The method of the present embodiment is applicable to outdoor environment temperature when higher, for example, when spring and autumn, seasonal temperature was higher, if the second temperature threshold of setting is 15 ℃, the 3rd temperature threshold of setting is 30 ℃, and outdoor temperature is not less than 15 ℃ and while being less than 30 ℃, controls respectively the first water pump 22 and compressor 61 is opened, now only utilize outdoor cold source that the refrigerating capacity of system can not be provided, therefore need to increase compressor 61 refrigeration, but compressor 61 can move by varying capacity, to save the energy.
The 4th embodiment of the refrigeration control method of the utility model machine room, also further comprises: when outdoor temperature is not less than the 3rd temperature threshold of setting, control respectively the second water pump 15 and compressor 61 unlatchings.
The present embodiment method is applicable to outdoor temperature when higher, as summer, if the 3rd temperature threshold of setting is 30 ℃, when outdoor temperature is not less than 30 ℃, utilize indoor return air to be more conducive to reduce energy resource consumption, need to open compressor 61, and open the second water pump 15, now condenser coil is equivalent to evaporative condenser, makes the wind pushing temperature of machine room lower, and energy consumption is lower.
Above-mentioned refrigeration control method, also comprises: when the relative humidity in described machine room is less than the relative humidity threshold value of setting, controls described humidifier 7 and open.
As shown in Figure 6, a specific embodiment of the refrigeration control method of the utility model machine room, comprises the following steps:
Step 201, obtain current outdoor temperature information;
Step 202, judge whether outdoor temperature is less than the first temperature threshold of setting; If so, perform step 203, otherwise, perform step 204;
Step 203, control described the first water pump and open;
Step 204, judge whether outdoor temperature is not less than the first temperature threshold of setting and is less than the second temperature threshold of setting; If so, perform step 205, otherwise, perform step 206;
Step 205, control described the first water pump and described the second water pump is opened;
Step 206, judge whether outdoor temperature is not less than the second temperature threshold of setting and is less than the 3rd temperature threshold of setting; If so, perform step 207, otherwise, perform step 208;
Step 207, control described the first water pump and described compressor and open;
Step 208, control described the second water pump and described compressor and open.
As shown in Figure 7, the utility model design based on identical, the utility model also provides a kind of refrigeration control device of machine room, comprising:
Obtain equipment 91, for obtaining outdoor temperature information;
Control appliance 92, when being less than the first temperature threshold of setting when outdoor temperature, controlling described the first water pump and opens.
Preferably, control appliance 92, is further used for when outdoor temperature is not less than the first temperature threshold of setting and is less than the second temperature threshold of setting, controls respectively described the first water pump and described the second water pump unlatching.
Preferably, control appliance 92, is further used for when outdoor temperature is not less than the second temperature threshold of setting and is less than the 3rd temperature threshold of setting, controls respectively described the first water pump and described compressor and opens.
Preferably, control appliance 92, is further used for when outdoor temperature is not less than the 3rd temperature threshold of setting, controls respectively described the second water pump and described compressor and opens.
For above-mentioned control appliance 92, when being further used for relative humidity in described machine room and being less than the relative humidity threshold value of setting, control described humidifier and open.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.