CN106482248A - Control system of machine room air conditioner based on multi-connected air conditioner and method - Google Patents
Control system of machine room air conditioner based on multi-connected air conditioner and method Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
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Abstract
The present invention relates to a kind of control system of machine room air conditioner based on multi-connected air conditioner and method, mainly solve the machine room electronic equipment operational reliability of high humidity low temp area, stability and long-life, each air conditioner in machine room end is according to ambient heat, humidity load adjusts electronic expansion valve opening or start-stop to maintain stablizing of computer room temperature, each end electromagnetic valve independent temperature system and multi-joint machine host synergic adjustment frequency-changeable compressor frequency are to ensure the refrigerant flow needed for system worked well, the electric expansion valve of independent humidity control cooling module runs with certain aperture to ensure the constant of the continuous operation of multi-joint machine host and machine room humidity always, each end system and engine control system collaborative work above, to ensure the reliability of machine room electronic equipment, long-life, super low energy consumption runs, the present invention has good using value and wide application prospect.
Description
Technical field
The present invention relates to air conditioning control method, specifically, it is to be related to a kind of control system based on multiple air conditioner in machine room of humiture guarantee solving high humidity low temp area machine room electronic equipment reliability service and method.
Background technology
In industrial machine room especially communications equipment room, substantial amounts of electronic equipment is installed, its normal operation needs a stable machine room humiture environment, precise machine room air conditioner be according to each class of electronic devices in machine room to the requirement of ambient temperature and humidity custom-designed air conditioning system, the comfort air conditioning system that its basic functional principle is used to family and office space is similar, but because the hardware configuration of its high reliability is so as to the high accuracy control to building environment humiture can be completed.If the ambient parameter in machine room does not reach the requirement of communication equipment operation, it will the normal operation to equipment impacts, such as：Data storage error, the speed of service are partially slow etc., or even the machine or cause device hardware to damage of directly delaying.
General precise machine room air conditioner is during the regulation of humiture, will start immediately once environment temperature is detected and exceeding reasonable set scope, and refrigeration host computer then can be closed immediately when environment temperature is less than design temperature certain limit, and typically air-conditioner host startup-shutdown needs the time recovering for 3 minutes about to wait, this intermittent startup-shutdown easily causes the big ups and downs of humiture in machine room, particularly with high humidity low temp area both domestic and external, during precise machine room air conditioner gap is shut down, to easily cause machine room electronic equipment humidity excessive for the high humility of environment, so that surface sweating, in turn result in fault and the infringement of electronic equipment, this brings very big hidden danger to the reliability service of equipment.If these regional ring temperature ratios are relatively low; the long-term damp warm area in such as South America; the main frame of air conditioner in machine room is difficult to startup optimization; because the startup of main frame is to rely on the temperature setting to start and shut down; little with the relative humidity relation of environment, the infringement to calculator room equipment for the ambient humidity in this case will be more serious.And the present invention individually increased independent humidity control cooling module on the basis of general precise machine room air conditioner and used multi-online air-conditioning system simultaneously; when ambient temperature reaches design temperature, the electric expansion valve of many tail end air conditioner equipment can be closed and then so that many tail end air conditioner equipment quits work; and multi-joint machine host then will not be shut down, run to maintain the dehumidifying end of independent Smaller load to work independently by the low frequency of main frame frequency-changeable compressor.The electric expansion valve of independent humidity control cooling module end at this time is always maintained at certain aperture work; to ensure that multi-joint machine host do not shut down; maintain machine room humidity in zone of reasonableness, it is to avoid the infringement to machine room electronic equipment for the moisture fluctuation in the machine room causing because of main frame startup-shutdown simultaneously.
Content of the invention
The technical problem to be solved in the present invention is：In existing method for controlling machine room air conditioner, the startup of main frame and shutdown are to be operated according to the temperature setting, and for high humidity low temp area both domestic and external, main frame is often difficult to start.In addition; the intermittent startup-shutdown of main frame easily causes the larger fluctuation of indoor temperature and humidity; during the shutdown of main frame gap, the high humility of environment easily causes fault and the infringement of machine room electronic equipment; and the intermittent startup-shutdown of main frame needs to consume more electric energy (starting current is up more than 3 times of electric current), easily causes energy waste.The present invention is based on problem above; a kind of control system of machine room air conditioner based on multi-connected air conditioner and method are proposed; by increasing independent humidity control cooling module and multi-connected air conditioning system collaborative work; successfully solve the problems, such as to be difficult to start in high humidity low temp area main frame to produce loss with the humiture fluctuation caused by intermittent startup-shutdown and high humility to calculator room equipment, compensate for defect present in existing method for controlling machine room air conditioner well.
The technical solution adopted for the present invention to solve the technical problems is：A kind of control system of machine room air conditioner based on multi-connected air conditioner and method are provided, each air conditioner in machine room end adjusts electronic expansion valve opening or start-stop to maintain stablizing of computer room temperature according to ambient heat, humidity load,, to ensure the refrigerant flow needed for system worked well, the electric expansion valve of independent humidity control cooling module runs with certain aperture to ensure the constant of the continuous operation of multi-joint machine host and machine room humidity always for each end electromagnetic valve independent temperature system and multi-joint machine host synergic adjustment frequency-changeable compressor frequency.
The method specifically includes following steps, that is, the mode of operation of the method is：
Step1：To air conditioner in machine room, many ends carry out humiture setting, start multi-joint machine host；
Step2：Start independent humidity control cooling module, start multimode air conditioner in machine room end simultaneously；
Step3：Many ends machine room module air conditioner system works independently according to the humiture of respective setting；
Step4：Each end electromagnetic valve independent temperature system controls the start-stop of electromagnetic valve and the start-stop of electric expansion valve；
Step5：Each oxidising Fe expansion valve opening and frequency-changeable compressor frequency synergic adjustment；
Step6：After calculator room equipment is shut down, first carry out the shutdown of independent humidity control cooling module, more multi-joint machine host is shut down.
In the control system of machine room air conditioner based on multi-connected air conditioner for the present invention and method, described step step1 includes：The startup of air conditioner in machine room main frame and shutdown operate according to building environment temperature; in some high humidity low temp areas; air conditioner in machine room end is carried out after humiture setting; if ring temperature is less than setting temperature, and then main frame will not start; so opening multi-joint machine host first is to pre-actuate the operation of multi-joint machine host according to the temperature setting requirement of independent humidity control cooling module; then carry out the unlatching of each terminus module again, run and be automatically stopped end running, adjust automatically main frame running frequency；
The temperature setting of described independent humidity control cooling module is less than the many terminal temperatures of corresponding air conditioner in machine room; in real work; the temperature sensor external induced environment temperature of independent humidity control cooling module; the shutdown temperature of independent humidity control cooling module is lower than corresponding ambient temperature 5 DEG C～10 DEG C; but higher than corresponding refrigeration system evaporating temperature 5 DEG C～10 DEG C, generally below -5 DEG C of the corresponding evaporating temperature of multi-connected air conditioning system.
In the control system of machine room air conditioner based on multi-connected air conditioner for the present invention and method, described step step2 specifically includes：After multi-connected machine host-initiated, start independent humidity control cooling module to adjust machine room humidity, to maintain stablizing of machine room humidity, the electric expansion valve of this independent humidity control cooling module runs to ensure the operation of multi-joint machine host the aperture of electric expansion valve controlling this independent humidity control cooling module according to machine room humidity real-time regulation always with certain aperture.Starting the regulation that each air conditioner in machine room terminus module carries out computer room temperature simultaneously, increasing (or reduction) frequency-changeable compressor frequency according to computer room temperature practical situation thus increasing (or reduction) refrigerant flow to adjust each regional temperature.
In the control system of machine room air conditioner based on multi-connected air conditioner for the present invention and method, described step step3 also includes：Each air conditioner in machine room terminus module is distributed in the zones of different of machine room, the uneven phenomenon of the region thermic load that causes because the distributed heat such as each regional Electronic components and parts, luminaire, building enclosure is different can lead to the wind pushing temperature difference required for each end, and this allows for controlling the electric expansion valve of each air conditioner in machine room terminus module need to adjust respective aperture according to the humiture situation in respective region.When computer room temperature is less than corresponding end electromagnetic valve independent temperature system temperature setting value, the electromagnetic valve of each air conditioner in machine room terminus module cuts out in advance, and then close corresponding electric expansion valve, at this moment corresponding main frame frequency can automatically adjust its operating frequency according to the aperture of electric expansion valve and start-stop quantity, end quantity is fewer, the operating frequency of main frame is lower, the energy that system is consumed is fewer, and now the electric expansion valve of independent humidity control cooling module works on still according to corresponding aperture, multiple main frame would not be shut down, ensure that machine room humidity environment meets the service requirement of electronic equipment；When each end corresponding electronic equipment dissipating heat amount increases, respective ends temperature is made to exceed set temperature, at this moment the electric expansion valve described in control system and electromagnetic valve run with regard to automatic, the temperature fluctuation of each end-equipment can be reduced further, temperature control precision can be easily reached ± 0.5 DEG C of scope, ensure the reliable and stable operation of machine room further, also ensure that the round-the-clock annual continual operation of reliability of communication apparatus.
In the control system of machine room air conditioner based on multi-connected air conditioner for the present invention and method, described step step4 specifically includes：Each end electromagnetic valve independent temperature system adjusts electronic expansion valve opening (or start-stop) according to respective region actual heating load and maintains the constant of one's respective area humiture to ensure suitable refrigerant flow.Independent humidity control cooling module aperture regulation to carry out its electric expansion valve according to the situation of humidity in machine room, it is not affected by other air conditioner in machine room terminus modules, only changes with the change of machine room humidity.
In the control system of machine room air conditioner based on multi-connected air conditioner for the present invention and method, described step step5 specifically includes：Lead to control the aperture of each air conditioner in machine room terminus module electric expansion valve different because of the difference of each region thermic load, refrigerant flow needed for each terminus module is also just corresponding to be increased or reduce, and running frequency increases, and refrigerant flow is also just corresponding to be increased, and vice versa；For the frequency-changeable compressor in multi-joint machine host, its running frequency need to be adjusted according to each end actual refrigerant flow sum, therefore after respective electronic expansion valve opening is fed back to compressor host by each end electromagnetic valve independent temperature system, main frame carries out processing the regulation carrying out frequency-changeable compressor frequency again, to ensure stablizing of system circulation.
The described control system of machine room air conditioner based on multi-connected air conditioner and method, including four big parts, the first big part is multi-connected machine host computer system；Second largest part is multi-connected machine multimode end system；The third-largest part is independent humidity control cooling module；The fourth-largest part is control system, is formed by connecting by corresponding pipeline, multistage feed liquor fork-shaped and combed branch pipe, electric expansion valve, electromagnetic valve and other auxiliary device etc. between first three big part.
Described control system includes multi-connected machine host computer control module, electronic expansion valve controls module, each air conditioner in machine room end electromagnetic valve independent temperature system, independent humidity control cooling module temperature control system, and its composition such as sensor, temperature controller.
Described air conditioner in machine room end electromagnetic valve independent temperature system operating mode is electric expansion valve and electromagnetic valve collaborative work, the temperature control system of electric expansion valve controls the aperture size of electric expansion valve, electromagnetic valve and its design temperature of corresponding temperature control system control machine room electronic equipment end, when electronic equipment actual temperature exceedes 0.5 DEG C～2 DEG C of design temperature, expansion valve is opened, and corresponding electric expansion valve is also opened；When electronic equipment actual temperature is less than 0.5 DEG C～2 DEG C of design temperature, power of electromagnetic valve is closed, corresponding electric expansion valve is also switched off, at this moment the overall load of main frame reduces, main frame running frequency accordingly reduces, reduce host work energy consumption, 0.5 DEG C～2 DEG C of temperature range therein can be set according to the required precision of institute's control object by user and change.
Described independent humidity control cooling module temperature control system can only comprise electric expansion valve temperature control system，Do not need to configure electromagnetic valve temperature control system，Can also be electric expansion valve and electromagnetic valve temperature control system collaborative configuration，Its corresponding electric expansion valve temperature sensor does not sense the machine room electronic equipment temperature of itself yet，It is in outer configuration state，Thus can ensure that corresponding electric expansion valve is constantly in unlatching working condition，Corresponding multi-joint machine host is also just constantly in start running status，The running frequency of main frame is directly related with overall load，Jointly accept the control of engine control system，When only independent humidity control cooling module work，At this moment main frame running frequency is very low，When so also just having ensured that machine room many tail end air conditioner system does not work，In the environment of low temperature and high relative humidity，Independent humidity control cooling module plays independent humidity control and the target of certain calculator room equipment cooling，Calculator room equipment will not because ambient temperature be less than set temperature when，Relative humidity is excessive，Make machine room electronic equipment surface moisture excessive，Serious conditions lower surface condenses，Reduce operational reliability and the working life of calculator room equipment.
Described multi-connected machine host computer control module and electronic expansion valve controls module are basically identical with conventional multi-connected air conditioner control system.
The quantity of described machine room multi-connected machine multimode end system is related to the overall load size of main frame, the cooling load size of each end system is determined according to the hot humidity load size of machine room end-equipment, several constitutes whole multi-connected machine end and its host computer system to dozens of end system.
The temperature control system mode of operation of described air conditioner in machine room electronic expansion valve controls module is consistent with general multi-connected air conditioning system many ends temperature control system mode of operation, namely by electric expansion valve out temperature sensor and equipment terminal temperature sensor, the i.e. temperature sensor collective effect of 3 temperature sensors, and feed back to engine control system in the presence of electric expansion valve air-conditioning system, and then host work frequency is adjusted according to the change of end load.
Implement the control system of machine room air conditioner based on multi-connected air conditioner and the method for the present invention, have the advantages that：
1st, ensure that air-conditioner host normal boot-strap runs：In high humidity low temp area, when ring temperature is less than design temperature, air-conditioner host is difficult to start, and the continuous operation that the present invention passes through independent humidity control cooling module ensures that multi-joint machine host is uninterruptedly started shooting operation, effectively prevent the problem that air-conditioner host is difficult to start because of temperature；
2nd, effectively reduce computer room temperature fluctuation：The present invention is adjusted to computer room temperature with multi-connected air conditioning system, and multi-joint machine host 24h runs without interruption, and effectively prevent because of the computer room temperature fluctuation problem caused by air-conditioner host startup-shutdown；
3rd, effectively dehumidify：The present invention arranges independent humidity control cooling module, is responsible for the regulation of machine room humidity specially, can automatically adjust electronic expansion valve opening according to the change of machine room humidity and continuously work to maintain stablizing of machine room humidity；
4th, energy saving：The intermittent startup-shutdown of air-conditioner host can consume more electric energy, and the present invention adopts multi-connected air conditioning system, and multi-joint machine host can successively work, and can save the electric energy being consumed because of air-conditioner host intermittence startup-shutdown.
Brief description
Fig. 1 is the control system of machine room air conditioner based on multi-connected air conditioner and the method flow diagram of the present invention.
Fig. 2 is the control system of machine room air conditioner based on multi-connected air conditioner and the method system figure of the present invention.
In figure：1st, multi-joint machine host；2nd, three-level return-air branch pipe；3rd, three-level feed liquor combed branch pipe；4th, electromagnetic valve；5th, electric expansion valve；6th, independent humidity control cooling module；7th, air conditioner in machine room terminus module one；8th, air conditioner in machine room terminus module two；9th, electromagnetic valve independent temperature system temperature sensor；10th, electromagnetic valve independent temperature system controller；11st, two grades of return-air branch pipes；12nd, three-level return-air branch pipe；13rd, air conditioner in machine room terminus module three；14th, air conditioner in machine room terminus module four；15th, cold-producing medium evacuates replenishing valve；16th, cold-producing medium night pipe；17th, two grades of feed liquor branch pipes；18th, one-level feed liquor branch pipe；19th, one-level return-air branch pipe；20th, feed tube；21st, muffler.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated so that the present invention becomes more apparent.
Step1：To air conditioner in machine room, many ends carry out humiture setting, start multi-joint machine host.As shown in Figure 2, it is and humiture setting is carried out to independent humidity control cooling module (6), air conditioner in machine room terminus module one (7), air conditioner in machine room terminus module two (8), air conditioner in machine room terminus module three (13), air conditioner in machine room terminus module four (14) and about dry air conditioner in machine room terminus module, air conditioner in machine room terminus module refrigerating capacity size, quantity are directly related with host capacity and overall calculator room equipment load, then restart multi-joint machine host (1).
Step2：Start independent humidity control cooling module, start multimode air conditioner in machine room end simultaneously.As shown in Figure 2, start independent humidity control cooling module (6), the aperture of situation independent regulation electric expansion valve (5) according to machine room humidity maintains stablizing of machine room humidity, start multiple air conditioner in machine room terminus modules such as machine room air conditioning terminal module one, two, three, four (7,8,13,14) simultaneously, the aperture of each electric expansion valve is automatically adjusted to ensure the constant of computer room temperature according to the change of respective region thermic load.
Step3：Many ends work independently according to the humiture of respective setting.As shown in Figure 2, refrigerant liquid goes out multi-joint machine host (1) and splits into A1 by one-level feed liquor branch pipe (18) after feed tube (20), two branch roads of A2, the refrigerant liquid of A1 branch road splits into A11 after two grades of feed liquor branch pipes (17) again, two branch roads of A12, it passes through this two branch roads respectively and enters three-level feed liquor combed branch pipe (3), carry out adiabatic throttling through electric expansion valve again after each shunting and enter air conditioner in machine room terminus module three and air conditioner in machine room terminus module four, refrigerant liquid level pressure heat absorption in air conditioner in machine room terminus module is evaporated to refrigerant vapour thus realizing refrigeration.Refrigerant vapour is passed through two three-levels return-air branch pipe (12) after electromagnetic valve and collaborates for two return-air branch roads of B11, B12, then to be collaborated for B1 return-air branch road by one two grades return-air branch pipes (11) more afterwards.The refrigerant liquid of A2 branch road splits into A21 after two grades of feed liquor branch pipes, two branch roads of A22, the refrigerant liquid of A21 branch road is further divided into two branch roads after three-level feed liquor combed branch pipe (3), it enters air conditioner in machine room terminus module one and air conditioner in machine room terminus module two after carrying out adiabatic throttling by electric expansion valve respectively, after in terminus module, isobaric evaporation is changed into refrigerant vapour realization refrigeration, the refrigerant vapour of a wherein branch road is returned directly to B21 return-air branch road after electromagnetic valve (4), the refrigerant vapour of another branch road is entering three-level return-air branch pipe (2) after electromagnetic valve.The refrigerant liquid of A22 branch road is entering independent humidity control cooling module (6) after electric expansion valve (5), and in this module, absorption amount of heat is evaporated to after refrigerant vapour realizes cool-down dehumidification effect and enters three-level return-air branch pipe (2) through electromagnetic valve (4).Two refrigerant vapour branch roads collaborate for a B22 return-air branch road in three-level return-air branch pipe (2), B21 and B22 return-air branch road collaborates for B2 return-air branch road through two grades of return-air branch pipes, B2 and B1 return-air branch road collaborates for same road refrigerant vapour through one-level return-air branch pipe (19) again and returns to multi-joint machine host, completes a kind of refrigeration cycle.In the normal running of unit, according to respective region heat load adjustment, each refrigerant flow maintains the constant of machine room humiture for each end.
Step4：Each end electromagnetic valve independent temperature system controls the start-stop of electromagnetic valve and the start-stop of electric expansion valve.As shown in Fig. 2 electromagnetic valve independent temperature system includes electromagnetic valve independent temperature system temperature sensor (9) and electromagnetic valve independent temperature system controller (10).In the case that in machine room, humiture changes, humiture situation can be delivered in electromagnetic valve independent temperature system in real time for each tip sensor, control system passes through to adjust the aperture of electric expansion valve or the start-stop of each air conditioner in machine room terminus module (7,8,13,14), and the aperture of the electric expansion valve of independent humidity control cooling module (6), can real-time adjustment indoor temperature and humidity situation, it is to avoid larger fluctuation occurs.
Step5：Each oxidising Fe expansion valve opening and frequency-changeable compressor frequency synergic adjustment.As shown in Fig. 2 in Step4 in the case that in machine room, humiture changes, electromagnetic valve independent temperature system can keep the constant of indoor temperature and humidity environment by the aperture and start-stop that adjust electric expansion valve.In addition, the aperture situation of each electric expansion valve can be fed back in multi-connected machine console controller by electromagnetic valve independent temperature system, after master controller carries out confluence analysiss, again the frequency of frequency-changeable compressor is adjusted, the constant of machine room interior temperature humidity environment is jointly maintained by the coordinated of the aperture of electric expansion valve and the running frequency of frequency-changeable compressor.
Step6：As shown in Fig. 2 after calculator room equipment shutdown is detected, system is shut down to independent humidity control cooling module (6) automatically, then more multi-joint machine host (1) is shut down.
The present invention is not limited to each embodiment described above, also can carry out various modifications in the range of without departing from spirit of the invention.
Claims (10)
1. the control system of machine room air conditioner based on multi-connected air conditioner and method it is characterised in that：The described control system of machine room air conditioner based on multi-connected air conditioner and method, including four big parts, the first big part is multi-connected machine host computer system；Second largest part is machine room multi-connected machine multimode end system；The third-largest part is independent humidity control cooling module；The fourth-largest part is control system, is formed by connecting by corresponding pipeline, multistage feed liquor fork-shaped and combed branch pipe, electric expansion valve, electromagnetic valve and other auxiliary device etc. between first three big part；The quantity of described machine room multi-connected machine multimode end system is related to the overall load size of main frame, the cooling load size of each end system is determined according to the hot humidity load size of machine room end-equipment, several constitutes whole multi-connected machine end and its host computer system to dozens of end system；Described control system includes multi-connected machine host computer control module, electronic expansion valve controls module, each air conditioner in machine room end electromagnetic valve independent temperature system, independent humidity control cooling module temperature control system, and its composition such as sensor, temperature controller.
2. the control system of machine room air conditioner based on multi-connected air conditioner according to claim 1 and method it is characterised in that：The mode of operation of described system and method is：
Step1：To air conditioner in machine room, many ends carry out humiture setting, start multi-joint machine host；
Step2：Start independent humidity control cooling module, start multimode air conditioner in machine room end simultaneously；
Step3：Many ends machine room module air conditioner system works independently according to the humiture of respective setting；
Step4：Each end electromagnetic valve independent temperature system controls the start-stop of electromagnetic valve and the start-stop of electric expansion valve；
Step5：Each oxidising Fe expansion valve opening and frequency-changeable compressor frequency synergic adjustment；
Step6：After calculator room equipment is shut down, first carry out the shutdown of independent humidity control cooling module, more multi-joint machine host is shut down.
3. the control system of machine room air conditioner based on multi-connected air conditioner according to claim 2 and method mode of operation step1 it is characterised in that：The startup of air conditioner in machine room main frame and shutdown operate according to building environment temperature; in some high humidity low temp areas; air conditioner in machine room end is carried out after humiture setting; if ring temperature is less than setting temperature, and then main frame will not start; so opening multi-joint machine host first is to pre-actuate the operation of multi-joint machine host according to the temperature setting requirement of independent humidity control cooling module; then carry out the unlatching of each terminus module again, run and be automatically stopped end running, adjust automatically main frame running frequency.
4. the control system of machine room air conditioner based on multi-connected air conditioner according to claim 2 and method mode of operation step2 it is characterised in that：After multi-connected machine host-initiated, start independent humidity control cooling module to adjust machine room humidity, the aperture of electric expansion valve controlling this independent humidity control cooling module according to machine room humidity real-time regulation is to maintain stablizing of machine room humidity, the electric expansion valve of this independent humidity control cooling module runs to ensure the operation of multi-joint machine host with certain aperture always, start the regulation that each air conditioner in machine room terminus module carries out computer room temperature simultaneously, increase (or reduction) frequency-changeable compressor frequency according to computer room temperature practical situation thus increasing (or reduction) refrigerant flow to adjust each regional temperature.
5. the control system of machine room air conditioner based on multi-connected air conditioner according to claim 2 and method mode of operation step3 it is characterised in that：Each air conditioner in machine room terminus module is distributed in the zones of different of machine room, the uneven phenomenon of the region thermic load that causes because the distributed heat such as each regional Electronic components and parts, luminaire, building enclosure is different can lead to the wind pushing temperature difference required for each end, and this allows for controlling the electric expansion valve of each air conditioner in machine room terminus module need to adjust respective aperture according to the humiture situation in respective region；When computer room temperature is less than corresponding end electromagnetic valve independent temperature system temperature setting value, the electromagnetic valve of each air conditioner in machine room terminus module cuts out in advance, and then close corresponding electric expansion valve, at this moment corresponding main frame frequency can automatically adjust its operating frequency according to the aperture of electric expansion valve and start-stop quantity, end quantity is fewer, the operating frequency of main frame is lower, the energy that system is consumed is fewer, and now the electric expansion valve of independent humidity control cooling module works on still according to corresponding aperture, multiple main frame would not be shut down, ensure that machine room humidity environment meets the service requirement of electronic equipment；When each end corresponding electronic equipment dissipating heat amount increases, respective ends temperature is made to exceed set temperature, at this moment the electric expansion valve described in control system and electromagnetic valve run with regard to automatic, the temperature fluctuation of each end-equipment can be reduced further, temperature control precision can be easily reached ± 0.5 DEG C of scope, ensure the reliable and stable operation of machine room further, also ensure that the round-the-clock annual continual operation of reliability of communication apparatus.
6. the control system of machine room air conditioner based on multi-connected air conditioner according to claim 2 and method mode of operation step4 it is characterised in that：Each end electromagnetic valve independent temperature system adjusts electronic expansion valve opening (or start-stop) according to respective region actual heating load and maintains the constant of one's respective area humiture to ensure suitable refrigerant flow；Independent humidity control cooling module aperture regulation to carry out its electric expansion valve according to the situation of humidity in machine room, it is not affected by other air conditioner in machine room terminus modules, only changes with the change of machine room humidity.
7. the control system of machine room air conditioner based on multi-connected air conditioner according to claim 2 and method mode of operation step5 it is characterised in that：Difference according to each region thermic load and lead to control each air conditioner in machine room terminus module electric expansion valve aperture different, refrigerant flow needed for each terminus module is also just corresponding to be increased or reduces, and running frequency increases, and refrigerant flow is also just corresponding to be increased, and vice versa；For the frequency-changeable compressor in multi-joint machine host, its running frequency need to be adjusted according to each end actual refrigerant flow sum, therefore after respective electronic expansion valve opening is fed back to compressor host by each end electromagnetic valve independent temperature system, main frame carries out processing the regulation carrying out frequency-changeable compressor frequency again, to ensure stablizing of system circulation；The aperture situation of each electric expansion valve can be fed back in multi-connected machine console controller by electromagnetic valve independent temperature system, after master controller carries out confluence analysiss, again the frequency of frequency-changeable compressor is adjusted, the constant of machine room interior temperature humidity environment is jointly maintained by the coordinated of the aperture of electric expansion valve and the running frequency of frequency-changeable compressor.
8. air conditioner in machine room end according to claim 1 electromagnetic valve independent temperature system it is characterised in that：Described air conditioner in machine room end electromagnetic valve independent temperature system operating mode is electric expansion valve and electromagnetic valve collaborative work, the temperature control system of electric expansion valve controls the aperture size of electric expansion valve, electromagnetic valve and its design temperature of corresponding temperature control system control machine room electronic equipment end, when electronic equipment actual temperature exceedes 0.5 DEG C～2 DEG C of design temperature, expansion valve is opened, and corresponding electric expansion valve is also opened；When electronic equipment actual temperature is less than 0.5 DEG C～2 DEG C of design temperature, power of electromagnetic valve is closed, corresponding electric expansion valve is also switched off, at this moment the overall load of main frame reduces, main frame running frequency accordingly reduces, reduce host work energy consumption, 0.5 DEG C～2 DEG C of temperature range therein can be set according to the required precision of institute's control object by user and change.
9. independent humidity control cooling module temperature control system according to claim 1 it is characterised in that：Described independent humidity control cooling module temperature control system only comprises electric expansion valve temperature control system，Do not need to configure electromagnetic valve temperature control system，Its corresponding electric expansion valve temperature sensor does not sense the machine room electronic equipment temperature of itself yet，It is in outer configuration state，Thus can ensure that corresponding electric expansion valve is constantly in unlatching working condition，Corresponding multi-joint machine host is also just constantly in start running status，The running frequency of main frame is directly related with overall load，Jointly accept the control of engine control system，When only independent humidity control cooling module work，At this moment main frame running frequency is very low，When so also just having ensured that machine room tail end air conditioner system does not work，In the environment of low temperature and high relative humidity，Independent humidity control cooling module plays independent humidity control and the target of certain calculator room equipment cooling，Calculator room equipment will not because ambient temperature be less than set temperature when，Relative humidity is excessive，Make machine room electronic equipment surface moisture excessive，Serious conditions lower surface condenses，Reduce operational reliability and the working life of calculator room equipment.
10. independent humidity control cooling module according to claim 1 it is characterised in that：The temperature setting of described independent humidity control cooling module is less than the many terminal temperatures of corresponding air conditioner in machine room; in real work; the temperature sensor external induced environment temperature of independent humidity control cooling module; the shutdown temperature of independent humidity control cooling module is lower than corresponding ambient temperature 5 DEG C～10 DEG C, but higher than corresponding refrigeration system evaporating temperature 5 DEG C～10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510526314.XA CN106482248B (en) | 2015-08-25 | 2015-08-25 | Control system of machine room air conditioner based on multi-connected air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107166647A (en) * | 2017-05-19 | 2017-09-15 | 青岛海尔空调电子有限公司 | A kind of multi-connected machine control method and system |
| CN108168039A (en) * | 2018-01-22 | 2018-06-15 | 广东美的制冷设备有限公司 | Progress control method, device, air conditioner and computer readable storage medium |
| CN111144543A (en) * | 2019-12-30 | 2020-05-12 | 中国移动通信集团内蒙古有限公司 | Data center air conditioner tail end temperature control method, device and medium |
| CN113864983A (en) * | 2021-10-19 | 2021-12-31 | 珠海格力电器股份有限公司 | Adjusting method and device of air conditioner operation strategy, electronic equipment and storage medium |
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| JP2006029598A (en) * | 2004-07-12 | 2006-02-02 | Mitsubishi Electric Corp | Air conditioner, and its control method |
| CN102252381A (en) * | 2011-05-27 | 2011-11-23 | 黄真银 | Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine |
| CN202303712U (en) * | 2011-09-07 | 2012-07-04 | 浙江浙大网新能源技术有限公司 | Novel air conditioning system for data center |
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| JP2006029598A (en) * | 2004-07-12 | 2006-02-02 | Mitsubishi Electric Corp | Air conditioner, and its control method |
| CN102252381A (en) * | 2011-05-27 | 2011-11-23 | 黄真银 | Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine |
| CN202303712U (en) * | 2011-09-07 | 2012-07-04 | 浙江浙大网新能源技术有限公司 | Novel air conditioning system for data center |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166647A (en) * | 2017-05-19 | 2017-09-15 | 青岛海尔空调电子有限公司 | A kind of multi-connected machine control method and system |
| CN108168039A (en) * | 2018-01-22 | 2018-06-15 | 广东美的制冷设备有限公司 | Progress control method, device, air conditioner and computer readable storage medium |
| CN111144543A (en) * | 2019-12-30 | 2020-05-12 | 中国移动通信集团内蒙古有限公司 | Data center air conditioner tail end temperature control method, device and medium |
| CN113864983A (en) * | 2021-10-19 | 2021-12-31 | 珠海格力电器股份有限公司 | Adjusting method and device of air conditioner operation strategy, electronic equipment and storage medium |
| CN113864983B (en) * | 2021-10-19 | 2022-08-12 | 珠海格力电器股份有限公司 | Adjusting method and device of air conditioner operation strategy, electronic equipment and storage medium |
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| CN106482248B (en) | 2019-07-19 |
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