CN103499137B - The refrigeration control method of a kind of machine room, Apparatus and system - Google Patents
The refrigeration control method of a kind of machine room, Apparatus and system Download PDFInfo
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- CN103499137B CN103499137B CN201310393375.4A CN201310393375A CN103499137B CN 103499137 B CN103499137 B CN 103499137B CN 201310393375 A CN201310393375 A CN 201310393375A CN 103499137 B CN103499137 B CN 103499137B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The present invention relates to technical field of refrigeration equipment, disclose the refrigeration control method of a kind of machine room, Apparatus and system.Refrigeration control system includes: be positioned at the cooling tower of outdoor, including: it is positioned at the blower fan at cooling tower top；It is sequentially connected with and is formed the first surface cooler of closed cycle, the first water pump and the second surface cooler by the first pipeline, wherein, first surface cooler is positioned at inside cooling tower, second surface cooler is positioned at the return air inlet side of machine room, for cooling down the return air of machine room, the water in the first surface cooler is pumped in the second surface cooler by the first water pump；Pressure fan, is positioned at the air outlet side of machine room, and the machine room return air of cooling is delivered to machine room；Temperature sensor, is arranged at outdoor, temperature information outside sensing chamber；Control device, be connected with temperature sensor and the first water pump signal respectively, for when outdoor temperature is less than the first temperature threshold set, controlling the first water pump and open.The refrigeration control system of the present invention, is beneficial to improve air quality in machine room, energy efficient.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, particularly relate to the refrigeration control method of a kind of machine room, device and be
System.
Background technology
Data center, is commonly called as machine room, is the facility of a whole set of complexity.It not only includes that computer system is with other therewith
Supporting equipment (such as communicating and storage system), also comprises the data communication connection of redundancy, environmental control equipment, monitoring device
And various safety device.Existing data center, the ratio that energy cost accounts for machine room operation cost is higher, only less than half
Electric power for IT load, remaining electric power is then for infrastructure such as power supply and cooling systems.
The outdoor new wind natural cooling of utilization is a kind of energy conservation model of machine room, currently with the refrigeration system of the new wind in outdoor
System as it is shown in figure 1, outdoor new wind is sent directly into machine room 83 through pressure fan 82 after new wind filter 81 filters again, after heat absorption by
Machine room exhaust outlet 84 is discharged.Although data center introduces new wind can save air conditioning energy consumption, but brings also can to new wind filter
Greatly burden, drainage screen is easy to be dirty stifled, needs to be replaced as frequently as or clean and maintenance drainage screen, and is easily brought into by outdoor air pollution
Machine room, affects the air quality that machine room is indoor, and maintenance and power consumption cost are also greatly increased.Further, outdoor air in winter is containing wet
Measuring low, after outdoor new wind enters indoor, if do not humidified, often causing room air to be seriously dried, its relative humidity
Can not meet the requirement of the minima of machine room relative humidity, it is unfavorable to bring to the operation of information technoloy equipment, even can break down and stop
Only run.Therefore, in air dried area, when winter, information technoloy equipment used outdoor fresh air refrigerating, its energy saved and maintenance
Indoor relative humidity must humidify consumed energy, adds the energy consumed of air-supply, exhaust system, and it saves energy
With therefore and compared with consumed energy, the two is the most very nearly the same.
Prior art has a drawback in that, uses outdoor new wind directly to freeze in the winter time, in energy conservation not ten
Divide notable and it needs to humidify in a large number, the most easily affect the air quality that machine room is indoor.
Summary of the invention
The invention provides the refrigeration control method of a kind of machine room, Apparatus and system, in order to avoid the outdoor new wind system of employing
Cold, improve 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 machine room of the present invention, including:
Being positioned at the cooling tower of outdoor, described cooling tower top is provided with blower fan；
It is sequentially connected with and is formed the first surface cooler of closed cycle, the first water pump and the second surface cooler by the first pipeline,
Wherein, described first surface cooler is positioned at inside cooling tower, and described second surface cooler is positioned at the return air inlet side of machine room, is used for cooling down
Machine room return air, the water in described first surface cooler is pumped in described second surface cooler by described first water pump；
Pressure fan, is positioned at the air outlet side of machine room, and the machine room return air of cooling is delivered to machine room；
Temperature sensor, is arranged at outdoor, temperature information outside sensing chamber；
Control device, be connected with described temperature sensor and described first water pump signal respectively, be used for when outdoor temperature is little
When the first temperature threshold set, control described first water pump and open.
The refrigeration control system of machine room of the present invention, uses full return air to cool down, it is not necessary to configure new wind filter, is conducive to improving
The cleanliness factor of machine room air；And use indirect refrigeration mode to be cooled down by the air in machine room, particularly as follows: by cold in cooling tower
Water in first surface cooler is cooled down by air, by the first water pump, the cold water in the first surface cooler is pumped into the second table cold
Device, the air of machine room is cooled down by the second surface cooler being positioned at return air inlet side, can keep the humidity of air in machine room
Constant；The refrigeration control system of machine room of the present invention, the only first water pump and pressure fan acting, save the energy, improve utilization of energy
Rate.
Preferably, described refrigeration control system, also include: be positioned at the collecting-tank below described first surface cooler and be positioned at
Spray equipment above described first surface cooler, and the second water pump, wherein, described second water pump is by water pump in described collecting-tank
Enter described spray equipment；
Described control device, is connected with described second water pump signal further, for when outdoor temperature is not less than setting
First temperature threshold and less than set the second temperature threshold time, control described first water pump respectively and described second water pump opened
Open.
The refrigeration control system of machine room of the present invention, adds spray equipment in cooling tower, when outdoor temperature is not less than setting
The first fixed temperature threshold and less than set the second temperature threshold time, the heat exchange amount of independent cold air and the first surface cooler is not
Enough, the water temperature in therefore increase spray cold water makes the first surface cooler reduces further, it is thus achieved that bigger refrigerating capacity, now, only
First water pump, the second water pump and pressure fan acting, be beneficial to save the energy.
Preferably, described refrigeration control system, also include:
It is sequentially connected with and is formed the compressor of closed cycle, condenser coil, restricting element and evaporation by the second pipeline
Device, has cold-producing medium in described second pipeline, described condenser coil is positioned at the lower section of described spray equipment, and described vaporizer is used
In cooling machine room return air；
Described control device, is connected with described signal compressor further, for when outdoor temperature is not less than the set
Two temperature thresholds during less than three temperature threshold set, control described first water pump and described compressor respectively and open.
The refrigeration control system of machine room of the present invention, adds a set of compressor refrigeration system, and condenser coil is positioned at
In cooling tower, when outdoor temperature is not less than the second temperature threshold set and is less than three temperature threshold set, open and press
Contracting machine and the first water pump, compressor circulation system and surface cooler blood circulation are used to cool down the air in machine room, and compressor can
With part output, also it is beneficial to save the energy.
Preferably, described control device includes judging the comparison whether outdoor temperature is not less than the 3rd temperature threshold set
Device, and the processor being connected with described comparator signal, when outdoor temperature is not less than three temperature threshold set, described
Processor controls described second water pump respectively and described compressor is opened.
In technical solution of the present invention, control device and be further used for when outdoor temperature is higher, such as higher temperatures in summer
When spending, only compressor assembly refrigeration, spray equipment shower water is to condenser coil, and now to be equivalent to vaporation-type cold for condenser coil
Condenser, therefore, still has energy-conservation advantage compared with traditional mechanical compression refrigerating system.
Preferably, to any of the above-described kind of refrigeration control system, also include:
Humidifier, is connected with described control device signal, for humidifying machine room return air；
Described control device is further used for when the relative humidity in described machine room is less than the relative humidity threshold value set,
Control described humidifier to open.
In technical solution of the present invention, increase the humidifier that the return air to machine room humidifies, within keeping machine room
Relative humidity is in the operation of information technoloy equipment in suitable state, beneficially machine room.
The present invention is applied to the refrigeration control method of above-mentioned refrigeration control system, including:
Obtain current outdoor temperature information；
When outdoor temperature is less than the first temperature threshold set, controls described first water pump and open.
Described refrigeration control method, also includes:
When outdoor temperature is not less than the first temperature threshold set and is less than the second temperature threshold set, described in control
First water pump and described second water pump are opened.
Described refrigeration control method, also includes:
When outdoor temperature is not less than the second temperature threshold set and is less than three temperature threshold set, described in control
First water pump and described compressor are opened.
Described refrigeration control method, also includes:
When outdoor temperature is not less than three temperature threshold set, controls described second water pump and described compressor is opened
Open.
For any one above-mentioned refrigeration control method, also include:
When the relative humidity in described machine room is less than the relative humidity threshold value set, controls described humidifier and open.
In technical solution of the present invention, obtain described refrigeration control method according to above-mentioned refrigeration control system,
In the method, control the unlatching of the equipment such as the first water pump, the second water pump, compressor according to different temperature informations, at each
It is at the most energy-conservation state under pattern, therefore, reduces energy consumption, improve energy utilization rate.
The refrigeration control device of machine room of the present invention, including:
Acquisition equipment, is used for obtaining outdoor temperature information；
Control equipment, for when outdoor temperature is less than the first temperature threshold set, controls described first water pump and opens.
Described control equipment, is further used for when outdoor temperature is not less than the first temperature threshold set and less than setting
During the second temperature threshold, control described first water pump respectively and described second water pump is opened.
Described control equipment, is further used for when outdoor temperature is not less than the second temperature threshold set and less than setting
During three temperature thresholds, control described first water pump respectively and described compressor is opened.
Described control equipment, is further used for, when outdoor temperature is not less than three temperature threshold set, controlling respectively
Described second water pump and described compressor are opened.
For above-mentioned control equipment, it is further used for when the relative humidity in described machine room is less than the relative humidity set
During threshold value, control described humidifier and open.
In technical solution of the present invention, acquisition equipment, for obtaining the temperature information of outdoor, controls equipment according to this temperature
Information controls the unlatching of the equipment such as the first water pump in refrigeration control device, the second water pump, compressor, so that at different temperatures bar
Use energy-conservation scheme under part, thus reduce energy consumption, improve energy utilization rate.
Accompanying drawing explanation
Fig. 1 is the refrigeration control system structural representation of prior art machine room；
Fig. 2 is the refrigeration control system first embodiment structural representation of machine room of the present invention；
Fig. 3 is refrigeration control system the second example structure schematic diagram of machine room of the present invention；
Fig. 4 is refrigeration control system the 3rd example structure schematic diagram of machine room of the present invention；
Fig. 5 is the refrigeration control method first embodiment schematic flow sheet of machine room of the present invention；
Fig. 6 is the schematic flow sheet of the refrigeration control method specific embodiment of machine room of the present invention；
Fig. 7 is the refrigeration control device structural representation of machine room of the present invention.
Reference:
1-cooling tower 3-pressure fan 4-temperature sensor 5-controls device 7-humidifier 10-machine room
11-blower fan 12-the first surface cooler 13-collecting-tank 14-spray equipment 15-the second water pump
21-the second surface cooler 22-the first water pump 61-compressor 62-condenser coil 63-restricting element
64-vaporizer 81-new wind filter 82-pressure fan 83-machine room 84-exhaust outlet
91-obtains equipment 92-and controls equipment
Detailed description of the invention
In order to reduce the energy consumption for cooling of machine room, improve the air quality of machine room, the invention provides the refrigeration of a kind of machine room
Control method, Apparatus and system, in this technical scheme, use full return air to cool down, it is not necessary to configure new wind filter, be conducive to carrying
The cleanliness factor of high machine room air；And use indirect refrigeration mode to be cooled down by the air in machine room, particularly as follows: pass through in cooling tower
Water in first surface cooler is cooled down by cold air, by the first water pump, the cold water in the first surface cooler is pumped into the second table cold
Device, the air of machine room is cooled down by the second surface cooler being positioned at return air inlet side, can keep the humidity of air in machine room
Constant；The refrigeration control system of machine room of the present invention, the only first water pump and pressure fan acting, save the energy, improve utilization of energy
Rate.For making the object, technical solutions and advantages of the present invention clearer, below lift specific embodiment and the present invention is made the most in detail
Thin explanation.
As in figure 2 it is shown, the refrigeration control system first embodiment structural representation of machine room of the present invention, described refrigeration control
System includes:
Being positioned at the cooling tower 1 of outdoor, cooling tower top is provided with blower fan 11；
It is sequentially connected with and is formed first surface cooler the 12, first water pump 22 of closed cycle by the first pipeline and the second table is cold
Device 21, wherein, it is internal that the first surface cooler 12 is positioned at cooling tower 1, and the second surface cooler 21 is positioned at the return air inlet side of machine room 10, is used for
Cooling machine room return air, the water in the first surface cooler 12 is pumped in the second surface cooler 21 by the first water pump 22；
Pressure fan 3, is positioned at the air outlet side of machine room 10, and the machine room return air of cooling is delivered to machine room 10；
Temperature sensor 4, is arranged at outdoor, temperature information outside sensing chamber；
Control device 5, be connected with temperature sensor 4 and the first water pump 22 signal respectively, for when outdoor temperature is less than setting
During fixed first temperature threshold, control the first water pump 22 and open.
In the refrigeration control system of machine room of the present invention, use full return air to cool down, it is not necessary to configure new wind filter, be conducive to
Improve the cleanliness factor of machine room air；And use indirect refrigeration mode to be cooled down by the air in machine room, particularly as follows: in cooling tower 1
By cold air, the water in the first surface cooler 12 is cooled down, by the first water pump 22 by the water supply pump in the first surface cooler 12
Entering the second surface cooler 21, the air of machine room is cooled down by the second surface cooler 21 being positioned at return air inlet side, can keep machine
In room, the humidity of air is constant；The refrigeration control system of machine room of the present invention, it is adaptable to when outdoor temperature is relatively low, when such as less than 5 DEG C,
Only first surface cooler 12 carries out heat exchange with cold air in cooling tower 1, and its refrigerating capacity is sufficiently used for reducing the temperature in machine room 10,
Now, the only first water pump 12 and pressure fan 3 are done work, and save the energy, improve energy utilization rate.When outdoor temperature is less than 0 DEG C,
Water bottom cooling tower 1 needs to bleed off.
As it is shown on figure 3, refrigeration control system the second example structure schematic diagram of machine room of the present invention, described refrigeration control
System, also includes: is positioned at the collecting-tank 13 below the first surface cooler 12 and is positioned at the spray equipment 14 above the first surface cooler 12,
And second water pump 15, wherein, water in collecting-tank 13 is pumped into spray equipment 14 by the second water pump 15；
Control device 5, be connected with the second water pump 15 signal further, for when outdoor temperature is not less than the first temperature set
When spending threshold value and be less than the second temperature threshold set, control the first water pump 22 respectively and the second water pump 15 is opened.
In the refrigeration control system of machine room of the present invention, in cooling tower 1, add spray equipment 14, outdoor temperature liter
Height, when outdoor temperature is not less than the first temperature threshold set and is less than the second temperature threshold set, such as outdoor temperature not
During less than 5 DEG C and less than 15 DEG C, the heat exchange amount of independent cold air and the first surface cooler 12 is inadequate, therefore increases and sprays cold water and make
Water temperature in first surface cooler 12 reduces further, it is thus achieved that bigger refrigerating capacity, now, and only first water pump the 22, second water pump 15
Do work with pressure fan 3, be beneficial to save the energy.
As shown in Figure 4, refrigeration control system the 3rd example structure schematic diagram of machine room of the present invention, described refrigeration control
System, also includes:
It is sequentially connected with and is formed the compressor 61 of closed cycle, condenser coil 62, restricting element 63 by the second pipeline
With vaporizer 64, having cold-producing medium in the second pipeline, condenser coil 62 is positioned at the lower section of spray equipment 14, and vaporizer 64 is used for
Cooling machine room return air；
Control device 5, be connected with compressor 61 signal further, for when outdoor temperature is not less than the second temperature set
Threshold value and less than set three temperature thresholds time, control the first water pump 22 respectively and compressor 61 opened.
The refrigeration control system of machine room of the present invention, adds a set of compressor refrigeration system, and condenser coil 62
In cooling tower 1, outdoor temperature raises, when outdoor temperature is not less than the second temperature threshold set and less than the 3rd temperature set
During degree threshold value, when being not less than 15 DEG C such as outdoor temperature and be less than 30 DEG C, the most only by natural cooling source and the first surface cooler 12 heat exchange
Amount not, therefore, need to be opened compressor 61 and the first water pump 22, compressor circulation system and surface cooler blood circulation are used to cold
But the air in machine room, now compressor 61 can run with varying capacity, reduces compression energy consumption according to the temperature in machine room, is also beneficial to
Save the energy.
Preferably, continue referring to shown in Fig. 4, refrigeration control system the 4th embodiment of machine room of the present invention, control device 5
Including judging whether outdoor temperature is not less than the comparator of the 3rd temperature threshold set, and the place being connected with comparator signal
Reason device, when outdoor temperature is not less than three temperature threshold set, processor controls the second water pump 15 and compressor 61 respectively
Open.
In the inventive solutions, when outdoor temperature raises further, such as during higher temperature in summer, as being not less than
When 30 DEG C, now, only compressor assembly refrigeration, spray equipment 14 shower water to condenser coil 62, now condenser coil 62
Be equivalent to evaporative condenser, therefore, still there is compared with traditional mechanical compression refrigerating system energy-conservation advantage.
First temperature threshold, the second temperature threshold and the 3rd temperature threshold rule of thumb set, and need to meet the first temperature
Degree threshold value is less than the second temperature threshold, and the second temperature threshold is less than the 3rd temperature threshold, as the first temperature threshold can be set as 5
DEG C, the second temperature threshold can be set as 15 DEG C, and the 3rd temperature threshold can be set as 30 DEG C, but the present invention is not limited to this
The most concrete numerical value.
Continue referring to shown in Fig. 4, refrigeration control system the 5th embodiment of machine room of the present invention, described refrigeration control system
System, including above-mentioned first embodiment to the 4th any one refrigeration control system of embodiment, also includes:
Humidifier 7, is connected with controlling device 5 signal, for humidifying machine room return air；
Control device 5 to be further used for, when the relative humidity in machine room is less than the relative humidity threshold value set, controlling to add
Wet device 7 is opened.
In the inventive solutions, the humidifier 7 that the return air to machine room humidifies is increased, in being used for keeping machine room
Relative humidity be in the operation of information technoloy equipment in suitable state, beneficially machine room.
Continue referring to shown in Fig. 4, in the refrigeration control system of the invention described above machine room, the second surface cooler 22, evaporation
Device 64, pressure fan 2 and humidifier 7 are not limited to the form of air-treatment unit, can be according to the feature spirit of data center's building
Layout alive, such as, can be arranged in whole face wall or utilization by the second surface cooler 22, vaporizer 64, pressure fan 2 and humidifier 7
An air conditioner unit is arranged in one room, and, the first temperature sensor 11 does not limits in outdoor installation site, as long as
It is not affected by miscellaneous part can detect outdoor temperature.Additionally, inside first surface cooler 12 of cooling tower 1 and condenser
The position of coil pipe 62 can arbitrarily be arranged, as long as the water of spray equipment 14 ejection can spray the first surface cooler 12 and condenser pan
Pipe 62, cooling tower 1 can also include the water fender between blower fan 11 and spray equipment 14, and be arranged at collecting-tank
The blowoff valve of 14.First surface cooler can be carried out certainly in surface cooler circulates by the cooling tower 1 in refrigeration control system of the present invention
So cooling, can play again the effect of evaporative condenser when compressor assembly works by condenser coil.The system of the present invention
Cold control system has different energy saver modes according to different temperature ranges, for the feature of machine room refrigeration duty, and can be entirely
Year runing adjustment function, meets data center's requirement to refrigeration.In technical solution of the present invention, described control device is the most permissible
Use software to realize controlling function, it is also possible to realize controlling function by hardware, when using hardware, control device and include comparator
And processor, comparator for compare outdoor temperature respectively with the magnitude relationship of temperature threshold set, as the first temperature threshold,
Second temperature threshold or the 3rd temperature threshold, and processor is connected with comparator signal, for the difference for comparator output
Signal control the state of circulating pump and compressor.
As it is shown in figure 5, the first embodiment schematic flow sheet of the refrigeration control method of machine room of the present invention, described refrigeration control
Method includes:
Step 101, obtain current outdoor temperature information；
Step 102, judge that outdoor temperature is whether less than the first temperature threshold set；If it is, perform step 103, no
Then, step 101 is returned；
Step 103, control described first water pump open.
This embodiment method be applicable to outdoor temperature relatively low time, such as winter, if the first temperature threshold set is as 5 DEG C,
When current outdoor temperature is less than 5 DEG C, controlling the first water pump 22 and open, the return air in machine room is cold through the second surface cooler 21
But, then entering machine room by pressure fan, the second surface cooler 21 absorbs return air heat, and water temperature will not be the lowest, and the first water pump 22 is normal
Will not freeze during operation, when outdoor temperature is less than 0 DEG C, the water bottom cooling tower 1 should bleed off；Use the pattern of full return air,
The air avoiding outdoor while utilizing outdoor cold source enters machine room 10, improves the air quality in machine room, and can be relatively
The good relative humidity in holding machine room, additionally, the operation power of the first water pump 22 is the lowest, reduces the energy of machine room on the whole
Consumption, improves its energy utilization rate.
Second embodiment of the refrigeration control method of machine room of the present invention, farther includes:
When outdoor temperature is not less than the first temperature threshold set and is less than the second temperature threshold set, control respectively
Described first water pump 22 and described second water pump 15 are opened.
This embodiment method be applicable to outdoor temperature slightly higher time, such as when spring and autumn, season was colder, as set the first temperature
Threshold value is 5 DEG C, and the second temperature threshold set is as 15 DEG C, and the most current outdoor temperature not less than 5 DEG C and less than 15 DEG C, is then controlled
Make the first water pump 22 and the second water pump 15 is opened, generally, when outdoor temperature is less than less than 4 DEG C, need to prevent the first water
Pump 22 and the second water pump 15 freeze.Return air in machine room enters machine room by pressure fan 3 again through the cooling of the second surface cooler 21
10, the operation power of the first water pump 22 and the second water pump 15 is the lowest, reduces the energy consumption of machine room, improves its energy utilization rate.
3rd embodiment of the refrigeration control method of machine room of the present invention, may further comprise:
When outdoor temperature is not less than the second temperature threshold set and is less than three temperature threshold set, control respectively
Described first water pump 22 and described compressor 61 are opened.
The method of the present embodiment be applicable to outdoor environment temperature higher time, such as when spring and autumn, seasonal temperature was higher, as set
The second temperature threshold be 15 DEG C, the 3rd temperature threshold set as 30 DEG C, i.e. outdoor temperature not less than 15 DEG C and be less than 30 DEG C
Time, control the first water pump 22 respectively and compressor 61 is opened, be not now provided that the refrigerating capacity of system merely with outdoor cold source, because of
This needs to increase compressor 61 and freezes, but compressor 61 can run with varying capacity, to save the energy.
4th embodiment of the refrigeration control method of machine room of the present invention, may further comprise: when outdoor temperature is not less than setting
During fixed three temperature threshold, control the second water pump 15 respectively and compressor 61 is opened.
The present embodiment method be applicable to outdoor temperature higher time, such as summer, if the 3rd temperature threshold set is as 30 DEG C, when
When outdoor temperature is not less than 30 DEG C, utilizes indoor return air to be more beneficial for reducing energy resource consumption, need to open compressor 61, and open
Opening the second water pump 15, now condenser coil is equivalent to evaporative condenser, and the wind pushing temperature making machine room is lower, and energy consumption is relatively
Low.
Above-mentioned refrigeration control method, also includes: when the relative humidity in described machine room is less than the relative humidity threshold set
During value, control described humidifier 7 and open.
As shown in Figure 6, a specific embodiment of the refrigeration control method of machine room of the present invention, comprise the following steps:
Step 201, obtain current outdoor temperature information；
Step 202, judge that outdoor temperature is whether less than the first temperature threshold set；If it is, perform step 203, no
Then, step 204 is performed；
Step 203, control described first water pump open；
Step 204, judge that outdoor temperature is whether not less than the first temperature threshold set and less than the second temperature of setting
Threshold value；If it is, perform step 205, otherwise, perform step 206；
Step 205, control described first water pump and described second water pump open；
Step 206, judge that outdoor temperature is whether not less than the second temperature threshold set and less than the 3rd temperature of setting
Threshold value；If it is, perform step 207, otherwise, perform step 208；
Step 207, control described first water pump and described compressor and open；
Step 208, control described second water pump and described compressor and open.
As it is shown in fig. 7, based on identical inventive concept, present invention also offers the refrigeration control device of a kind of machine room, bag
Include:
Acquisition equipment 91, is used for obtaining outdoor temperature information；
Control equipment 92, for when outdoor temperature is less than the first temperature threshold set, controlling described first water pump and open
Open.
Preferably, control equipment 92, be further used for when outdoor temperature not less than the first temperature threshold set and is less than
During the second temperature threshold set, control described first water pump respectively and described second water pump is opened.
Preferably, control equipment 92, be further used for when outdoor temperature not less than the second temperature threshold set and is less than
During three temperature threshold set, control described first water pump respectively and described compressor is opened.
Preferably, control equipment 92, be further used for when outdoor temperature is not less than three temperature threshold set, respectively
Control described second water pump and described compressor is opened.
For above-mentioned control equipment 92, it is further used for when the relative humidity in described machine room is the wettest less than set
During degree threshold value, control described humidifier and open.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. the refrigeration control system of a machine room, it is characterised in that including:
Being positioned at the cooling tower (1) of outdoor, described cooling tower (1) top is provided with blower fan (11)；
It is sequentially connected with and is formed first surface cooler (12) of closed cycle, the first water pump (22) and the second table by the first pipeline cold
Device (21), wherein, it is internal that described first surface cooler (12) is positioned at described cooling tower (1), and described second surface cooler (21) is positioned at machine
The return air inlet side in room (10), is used for cooling down machine room return air, and described first water pump (22) is by described first surface cooler (12)
Water pumps in described second surface cooler (21)；
Pressure fan (3), is positioned at the air outlet side of machine room (10), and the machine room return air of cooling is delivered to machine room (10)；
Temperature sensor (4), is arranged at outdoor, temperature information outside sensing chamber；
Control device (5), be connected with described temperature sensor (4) and described first water pump (22) signal respectively, for when outdoor
When temperature is less than the first temperature threshold set, controls described first water pump (22) and open；
It is positioned at the collecting-tank (13) of described first surface cooler (12) lower section and is positioned at the spray of described first surface cooler (12) top
Device (14), and the second water pump (15), wherein, water in described collecting-tank (13) is pumped into described spray by described second water pump (15)
Shower device (14)；Described control device (5), is connected with described second water pump (15) signal further, for when outdoor temperature not
When the first temperature threshold less than setting the second temperature threshold less than setting, control described first water pump (22) and institute respectively
State the second water pump (15) to open.
2. refrigeration control system as claimed in claim 1, it is characterised in that also include:
It is sequentially connected with and is formed the compressor (61) of closed cycle, condenser coil (62), restricting element by the second pipeline
And vaporizer (64) (63), having cold-producing medium in described second pipeline, described condenser coil (62) is positioned at described spray equipment
(14) lower section, described vaporizer (64) is used for cooling down machine room return air；
Described control device (5), is connected with described compressor (61) signal further, for when outdoor temperature is not less than setting
Second temperature threshold and less than set three temperature thresholds time, control described first water pump (22) and described compressor respectively
(61) open.
3. refrigeration control system as claimed in claim 2, it is characterised in that described control device (5) includes judging outdoor temp
Whether degree is not less than the comparator of the 3rd temperature threshold set, and the processor being connected with described comparator signal, works as room
When outer temperature is not less than three temperature threshold set, described processor controls described second water pump (15) and described compression respectively
Machine (61) is opened.
4. the refrigeration control system as described in any one of claims 1 to 3, it is characterised in that also include:
Humidifier (7), is connected with described control device (5) signal, for humidifying the return air of machine room；
Described control device (5) is further used for when the relative humidity in described machine room is less than the relative humidity threshold value set,
Control described humidifier (7) to open.
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