CN106482248B - Control system of machine room air conditioner based on multi-connected air conditioner - Google Patents
Control system of machine room air conditioner based on multi-connected air conditioner Download PDFInfo
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- CN106482248B CN106482248B CN201510526314.XA CN201510526314A CN106482248B CN 106482248 B CN106482248 B CN 106482248B CN 201510526314 A CN201510526314 A CN 201510526314A CN 106482248 B CN106482248 B CN 106482248B
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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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- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of control system of machine room air conditioner based on multi-connected air conditioner, mainly solve the computer 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 the stabilization of computer room temperature, refrigerant flow needed for each end solenoid valve independent temperature system guarantees system worked well with multi-joint machine host synergic adjustment frequency-changeable compressor frequency, the continuous operation that the electric expansion valve of independent humidity control cooling module runs always to guarantee multi-joint machine host with certain aperture is constant with computer room humidity, above each end system and engine control system cooperate, to ensure the reliable of computer room electronic equipment, long-life, super low energy consumption operation, the present invention has good application value and wide application prospect.
Description
Technical field
The present invention relates to air conditioning control methods, specifically, being to be related to a kind of solution high humidity low temp area computer room electronics to set
The control system based on multiple air conditioner in machine room of the temperature and humidity guarantee of standby reliability service.
Background technique
A large amount of electronic equipment is installed, normal operation needs a stabilization in industrial machine room especially communications equipment room
Machine room humiture environment, precise machine room air conditioner be the requirement according to each class of electronic devices in computer room to ambient temperature and humidity and
The air-conditioning system specially designed, basic functional principle is similar to the comfort air conditioning system that family and office space use, but due to
The hardware configuration of its high reliability can complete the high-precision control to building environment temperature and humidity.If the ring in computer room
The requirement of communication equipment operation is not achieved in border parameter, it will the normal operation of equipment is impacted, such as: data store out
It is wrong, the speed of service is partially slow etc., or even directly delay machine or device hardware is caused to damage.
General precise machine room air conditioner is in the adjustment process of temperature and humidity, once detect that ambient temperature is more than reasonable set model
Enclose to start immediately, and refrigeration host computer can then close immediately when ambient temperature is lower than set temperature a certain range, and general
Air-conditioner host startup-shutdown needs 3 minutes or so to restore the time waited, and this intermittent startup-shutdown easily causes in computer room
The big ups and downs of temperature and humidity, particularly with high humidity low temp area both domestic and external, the environment during precise machine room air conditioner gap is shut down
High humility easily cause computer room electronic equipment humidity excessive so that surface sweating, in turn results in the failure of electronic equipment
And damage, this brings very big hidden danger to the reliability service of equipment.If the circumstance temperature in these areas is relatively low, such as South America
Long-term damp warm area, the host of air conditioner in machine room is difficult starting operation, because the starting of host is opened by the temperature of setting
Dynamic with shutdown, little with the relative humidity relationship of environment, damage of the ambient humidity to calculator room equipment in this case will be more
Add serious.And the present invention individually increases independent humidity control cooling module while being used on the basis of general precise machine room air conditioner
Multi-online air-conditioning system, when environment temperature reaches set temperature, the electric expansion valve of more tail end air conditioner equipment can close and then make
Much tail end air conditioner equipment stops working, and multi-joint machine host will not then be shut down, and is transported by the low frequency of host frequency-changeable compressor
Row is to maintain the dehumidifying end of independent Smaller load to work independently.The electric expansion valve of independent humidity control cooling module end at this time
It is always maintained at certain aperture work, to guarantee that multi-joint machine host is not shut down, while maintaining computer room humidity in zone of reasonableness, avoids
Because of damage of the moisture fluctuation to computer room electronic equipment in computer room caused by host startup-shutdown.
Summary of the invention
The technical problem to be solved by the present invention is in existing method for controlling machine room air conditioner, the starting and shutdown of host are
It is operated according to the temperature of setting, for high humidity low temp area both domestic and external, host is often difficult to start.In addition, main
The high humility of environment is held very much during the intermittent startup-shutdown of machine be easy to cause the biggish fluctuation of indoor temperature and humidity, host gap to shut down
The failure and damage of computer room electronic equipment are easily caused, and the intermittent startup-shutdown of host needs to consume (the starting of more electric energy
Electric current is up 3 times of electric current or more), it be easy to cause energy waste.The present invention is based on problem above, propose that one kind is based on
The control system of machine room air conditioner of multi-connected air conditioner cooperates with work by increasing independent humidity control cooling module and multi-connected air conditioning system
Make, successfully solves and be difficult to start and temperature and humidity fluctuation and height caused by intermittent startup-shutdown in high humidity low temp area host
Humidity leads to the problem of loss to calculator room equipment, compensates for defect present in existing method for controlling machine room air conditioner well.
The technical solution adopted by the present invention to solve the technical problems is: it is empty to provide a kind of computer room based on multi-connected air conditioner
Control system is adjusted, each air conditioner in machine room end adjusts electronic expansion valve opening and start-stop according to ambient heat, humidity load to maintain computer room
The stabilization of temperature, each end solenoid valve independent temperature system and multi-connected machine engine control system synergic adjustment frequency-changeable compressor frequency
With refrigerant flow needed for guaranteeing system worked well, the electric expansion valve of independent humidity control cooling module is with certain aperture one
The straight continuous operation for running to guarantee multi-joint machine host is constant with computer room humidity.
The method specifically includes following steps, that is, the operating mode of the method are as follows:
Step1: temperature and humidity setting is carried out to the more ends of air conditioner in machine room, starts multi-joint machine host；
Step2: starting independent humidity control cooling module, while starting multimode air conditioner in machine room end；
Step3: more end computer room module air conditioner systems work independently according to the temperature and humidity being respectively arranged；
Step4: the start-stop of each end solenoid valve independent temperature system control solenoid valve and the start-stop of electric expansion valve；
Step5: each oxidising Fe expansion valve opening and frequency-changeable compressor frequency synergic adjustment；
Step6: when calculator room equipment shut down after, first carry out independent humidity control cooling module shutdown, then to multi-joint machine host into
Row is shut down.
In the control system of machine room air conditioner of the invention based on multi-connected air conditioner, the operating mode step1 includes: machine
The starting and shutdown of room air-conditioner host are operated according to building environment temperature, in some high humidity low temp areas, to computer room sky
After adjusting end to carry out temperature and humidity setting, if circumstance temperature is lower than setting temperature, then host not will start, so opening multi-connected machine for the first time
Host is to be required according to the temperature setting of independent humidity control cooling module to pre-actuate the operation of multi-joint machine host, is then carried out again
The unlatching of each terminus module runs and is automatically stopped end operation, adjust automatically host running frequency；
The temperature setting of the independent humidity control cooling module of the control system of machine room air conditioner based on multi-connected air conditioner is lower than
The corresponding more terminal temperatures of air conditioner in machine room, in actual operation, the external inductance loop of the temperature sensor of independent humidity control cooling module
Border temperature, the shutdown temperature of independent humidity control cooling module is 5 DEG C~10 DEG C lower than corresponding environment temperature, but than corresponding refrigeration
System evaporating temperature want it is 5 DEG C high~10 DEG C, the corresponding evaporating temperature of multi-connected air conditioning system be generally below -5 DEG C.
In the control system of machine room air conditioner of the invention based on multi-connected air conditioner, the operating mode step2 is specifically wrapped
It includes: after multi-connected machine host-initiated, starting independent humidity control cooling module to adjust computer room humidity, adjusted in real time according to computer room humidity
Section controls the aperture of the electric expansion valve of this independent humidity control cooling module to maintain the stabilization of computer room humidity, the cooling of this independent humidity control
The operation that the electric expansion valve of module is run always with certain aperture to guarantee multi-joint machine host.Start each air conditioner in machine room end simultaneously
End module carries out the adjusting of computer room temperature, increased according to computer room temperature actual conditions (or reduce) frequency-changeable compressor frequency to
Increase (or reduction) refrigerant flow to adjust each regional temperature.
In the control system of machine room air conditioner of the invention based on multi-connected air conditioner, the operating mode step3 further include:
Each air conditioner in machine room terminus module is distributed in the different zones of computer room, because of each regional Electronic component, lighting apparatus, building enclosure institute
Distribute heat it is different and caused by the non-uniform phenomenon of region thermic load to will lead to supply air temperature required for each end poor
Different, this electric expansion valve for allowing for controlling each air conditioner in machine room terminus module need to be adjusted according to the temperature and humidity situation in respective region
Respective aperture.When computer room temperature is lower than corresponding end solenoid valve independent temperature system desired temperature, each air conditioner in machine room
The solenoid valve of terminus module is closed in advance, and then closes corresponding electric expansion valve, and at this moment corresponding host frequency can be according to electricity
The aperture and start-stop quantity of sub- expansion valve automatically adjusts its working frequency, and end quantity is fewer, and the working frequency of host is got over
Low, energy consumed by system is fewer, and the electric expansion valve of independent humidity control cooling module is still according to corresponding aperture at this time
It works on, multiple host would not be shut down, and guarantee that computer room humidity environment meets the service requirement of electronic equipment；When each end
Corresponding electronic equipment dissipating heat amount increases, so that respective ends temperature is more than set temperature, at this moment each air conditioner in machine room end
The just automatic starting operation of the electric expansion valve and solenoid valve of module, can be further reduced the temperature fluctuation of each end-equipment, temperature
Degree control precision can be easily reached ± 0.5 DEG C of range, further ensured the reliable and stable operation of computer room, also ensured
The reliable round-the-clock whole year continual operation of communication apparatus.
In the control system of machine room air conditioner of the invention based on multi-connected air conditioner, the operating mode step4 is specifically wrapped
Include: each end solenoid valve independent temperature system adjusted according to respective region actual heating load electronic expansion valve opening and start-stop with
Guarantee appropriate refrigerant flow to maintain the constant of one's respective area temperature and humidity.Independent humidity control cooling module is according to the feelings of humidity in computer room
Condition carries out the aperture regulation of its electric expansion valve, is not influenced by other air conditioner in machine room terminus modules, only with computer room humidity
Variation and change.
In the control system of machine room air conditioner of the invention based on multi-connected air conditioner, the operating mode step5 is specifically wrapped
It includes: causing the aperture for controlling each air conditioner in machine room terminus module electric expansion valve different because of the difference of each region thermic load, each end
Refrigerant flow needed for end module is also just increased accordingly or is reduced, and running frequency increases, and refrigerant flow also just increases accordingly, instead
?；For the frequency-changeable compressor in multi-joint machine host, running frequency need to be according to the practical refrigerant flow in each end
The sum of be adjusted, therefore when respective electronic expansion valve opening is fed back to multi-joint owner by each end solenoid valve independent temperature system
After machine control module, multi-connected machine host computer control module is handled the adjusting for carrying out frequency-changeable compressor frequency again, to guarantee system
The stabilization of circulation；Each air conditioner in machine room end solenoid valve independent temperature system can be by the aperture of each air conditioner in machine room oxidising Fe expansion valve
It feeds back in multi-connected machine host computer control module, after multi-connected machine host computer control module carries out confluence analysis, then to frequency-changeable compressor
Frequency be adjusted, maintained jointly by the coordinated of the running frequency of the aperture and frequency-changeable compressor of electric expansion valve
Temperature and humidity environment is constant in computer room.
The control system of machine room air conditioner based on multi-connected air conditioner, including four big components, the first big component are multi-connected machine
Host system；The second largest component is multi-connected machine multimode end system；The third-largest component is independent humidity control cooling module；It is the fourth-largest
Component is control system, passes through corresponding pipeline, multistage feed liquor fork-shaped and combed branch pipe, electronic expansion between first three big component
Valve, solenoid valve and other auxiliary devices are formed by connecting.
The control system of machine room air conditioner based on multi-connected air conditioner includes multi-connected machine host computer control module, electric expansion valve
Control module, each air conditioner in machine room end solenoid valve independent temperature system, independent humidity control cooling module temperature control system, and its sensing
Device, temperature controller composition.
The control system of machine room air conditioner air conditioner in machine room end solenoid valve independent temperature system work based on multi-connected air conditioner
Operation mode is that electric expansion valve and solenoid valve cooperate, and the aperture of the temperature control system control electric expansion valve of electric expansion valve is big
It is small, the set temperature of solenoid valve and its corresponding temperature control system control computer room electronic equipment end, when electronic equipment actual temperature
When more than 0.5 DEG C~2 DEG C of set temperature, power of electromagnetic valve is opened, and corresponding electric expansion valve is also opened；When electronic equipment reality
When temperature is lower than 0.5 DEG C~2 DEG C of set temperature, power of electromagnetic valve is closed, and corresponding electric expansion valve is also switched off, at this moment host
Overall load is reduced, and host running frequency accordingly reduces, and reduces host work energy consumption, 0.5 DEG C~2 DEG C of temperature range therein can
To be set and be changed according to the required precision of institute's control object by user.
The control system of machine room air conditioner independent humidity control cooling module temperature control system based on multi-connected air conditioner can be wrapped only
Temperature control system containing electric expansion valve does not need configuration solenoid valve temperature control system, can also be electric expansion valve and solenoid valve temperature control
Systematic collaboration configuration, corresponding electric expansion valve temperature sensor do not incude the temperature of computer room electronic equipment itself yet, are in
External state can thus ensure that corresponding electric expansion valve is constantly in unlatching working condition, corresponding multi-joint machine host
Also it is just constantly in booting operating status, the running frequency of host is directly related with overall load, receives host control system jointly
The control of system, when only independent humidity control cooling module works, at this moment host running frequency is very low, has also just ensured computer room in this way
When more tail end air conditioner systems do not work, in the environment of low temperature and high relative humidity, independent humidity control cooling module plays independent humidity control and certain
Calculator room equipment cooling target, calculator room equipment will not be lower than because of environment temperature set by temperature when, relative humidity is excessive, makes
It is excessive to obtain computer room electronic equipment surface moisture, serious conditions lower surface moisture condensation reduces the operational reliability and work of calculator room equipment
Service life.
The multi-connected machine host computer control module and electronic expansion valve controls module and conventional multi-connected air conditioner control system
It is almost the same.
The quantity of the computer room multi-connected machine multimode end system of the control system of machine room air conditioner based on multi-connected air conditioner
It is related to the overall load size of host, the refrigeration of each end system is determined according to the hot humidity load size of computer room end-equipment
Payload, it is several to constitute entire multi-connected machine end and its host system to dozens of end system.
The temperature of the air conditioner in machine room electronic expansion valve controls module of the control system of machine room air conditioner based on multi-connected air conditioner
It is consistent with the more end temperature control system operating modes of general multi-connected air conditioning system that is, swollen by electronics to control system operating mode
Swollen valve out temperature sensor and equipment terminal temperature sensor, i.e., the temperature sensor collective effect of 3 temperature sensors, and
Engine control system is fed back under the action of electric expansion valve air-conditioning system, and then master is adjusted according to the variation of end load
Machine working frequency.
Implement the control system of machine room air conditioner of the invention based on multi-connected air conditioner, has the advantages that
1, guarantee the operation of air-conditioner host normal boot-strap: in high humidity low temp area, when circumstance temperature is lower than set temperature, air-conditioning master
Machine is difficult to start, and the present invention guarantees that multi-joint machine host is uninterruptedly switched on operation by the continuous operation of independent humidity control cooling module,
Air-conditioner host is effectively prevented because temperature is difficult to the problem of starting；
2, computer room temperature fluctuation is effectively reduced: the present invention is adjusted computer room temperature with multi-connected air conditioning system, more
Online host runs without interruption for 24 hours, the computer room temperature fluctuation problem caused by effectively preventing because of air-conditioner host startup-shutdown；
3, effectively dehumidifying: independent humidity control cooling module is arranged in the present invention, is responsible for the adjusting of computer room humidity specially, can be according to machine
The variation of room humidity automatically adjusts electronic expansion valve opening and continuous work to maintain the stabilization of computer room humidity；
4, energy saving: the intermittent startup-shutdown of air-conditioner host can consume more electric energy, and the present invention uses multiple air conditioner
Adjusting system, multi-joint machine host can successively work, and can save because of electric energy consumed by air-conditioner host intermittence startup-shutdown.
Detailed description of the invention
Fig. 1 is the control system of machine room air conditioner flow chart of the invention based on multi-connected air conditioner.
Fig. 2 is the control system of machine room air conditioner figure of the invention based on multi-connected air conditioner.
In figure: 1, multi-joint machine host；2, three-level return-air branch pipe；3, three-level feed liquor combed branch pipe；4, solenoid valve；5, electric
Sub- expansion valve；6, independent humidity control cooling module；7, air conditioner in machine room terminus module one；8, air conditioner in machine room terminus module two；9, electromagnetism
Valve independent temperature system temperature sensor；10, solenoid valve independent temperature system controller；11, second level return-air branch pipe；12, three
Grade return-air branch pipe；13, air conditioner in machine room terminus module three；14, air conditioner in machine room terminus module four；15, refrigerant evacuates prefill valve；
16, refrigerant night manages；17, second level feed liquor branch pipe；18, level-one feed liquor branch pipe；19, level-one return-air branch pipe；20, feed liquor
Pipe；21, muffler.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further illustrated, so that the present invention is more clearly understood.
Step1: temperature and humidity setting is carried out to the more ends of air conditioner in machine room, starts multi-joint machine host.As shown in Fig. 2, being pair
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 end
Module three (13), air conditioner in machine room terminus module four (14) and about dry a air conditioner in machine room terminus module carry out temperature and humidity setting, machine
Room air conditioning terminal modular refrigeration amount size, quantity are directly related with host capacity and overall calculator room equipment load, then open again
Move multi-joint machine host (1).
Step2: starting independent humidity control cooling module, while starting multimode air conditioner in machine room end.As shown in Fig. 2, starting
Independent humidity control cooling module (6), according to computer room humidity the case where the aperture of separately adjustable electric expansion valve (5) maintain computer room wet
The stabilization of degree, while starting multiple air conditioner in machine room ends moulds such as computer room air conditioning terminal module one, two, three, four (7,8,13,14)
Block automatically adjusts the aperture of each electric expansion valve according to the variation of respective region thermic load to guarantee the constant of computer room temperature.
Step3: more ends work independently according to the temperature and humidity being respectively arranged.As shown in Fig. 2, refrigerant liquid goes out multi-connected machine
Host (1) splits into two branches of A1, A2, the refrigerant of A1 branch by level-one feed liquor branch pipe (18) after inlet tube (20)
Liquid splits into two branches of A11, A12 again after second level feed liquor branch pipe (17), passes through this two branches respectively into three
Grade feed liquor combed branch pipe (3) carries out adiabatic throttling through electric expansion valve again after respectively shunting and enters air conditioner in machine room end mould
Block three and air conditioner in machine room terminus module four, refrigerant liquid level pressure heat absorption in air conditioner in machine room terminus module are evaporated to refrigerant steaming
Vapour is to realize refrigeration effect.Refrigerant vapour is by two three-level return-air branch pipe (12) interflow after solenoid valve later
Then two return-air branches of B11, B12 collaborate to be B1 return-air branch by a second level return-air branch pipe (11) again.A2 branch
Refrigerant liquid splits into two branches of A21, A22 after second level feed liquor branch pipe, and the refrigerant liquid of A21 branch passes through one
Be further divided into two branches after a three-level feed liquor combed branch pipe (3), respectively by electric expansion valve carry out adiabatic throttling after
Into air conditioner in machine room terminus module one and air conditioner in machine room terminus module two, isobaric evaporation becomes refrigerant vapour in terminus module
After realizing refrigeration, wherein the refrigerant vapour of a branch is returned directly to B21 return-air branch after solenoid valve (4), another
The refrigerant vapour of branch is entering three-level return-air branch pipe (2) after solenoid valve.The refrigerant liquid of A22 branch is passing through
Electric expansion valve (5) enters independent humidity control cooling module (6) afterwards, and amount of heat is absorbed in this module and is evaporated to refrigerant vapour
Enter three-level return-air branch pipe (2) by solenoid valve (4) after realization cool-down dehumidification effect.Two refrigerant vapour branches are in three-level
Interflow is a B22 return-air branch in return-air branch pipe (2), B21 and B22 return-air branch is B2 through second level return-air branch pipe interflow
Return-air branch, B2 and B1 return-air branch return to multi-joint through level-one return-air branch pipe (19) interflow for same refrigerant vapour all the way again
Machine host completes a refrigeration cycle.In the normal operational process of unit, each end is each according to respective region heat load adjustment
The constant of machine room humiture is maintained from refrigerant flow.
Step4: the start-stop of each end solenoid valve independent temperature system control solenoid valve and the start-stop of electric expansion valve.Such as figure
Shown in 2, solenoid valve independent temperature system includes solenoid valve independent temperature system temperature sensor (9) and solenoid valve independent temperature system
It unites controller (10).In the case that temperature and humidity changes in computer room, each tip sensor can pass in real time temperature and humidity situation
It is delivered in solenoid valve independent temperature system, the electronics that control system passes through each air conditioner in machine room terminus module (7,8,13,14) of adjusting
The aperture of the electric expansion valve of the aperture or start-stop and independent humidity control cooling module (6) of expansion valve, can adjust Indoor Temperature in real time
Humidity condition avoids the occurrence of biggish fluctuation.
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 temperature and humidity changes in computer room, solenoid valve independent temperature system can by adjust electric expansion valve aperture and
Start-stop keeps the constant of indoor temperature and humidity environment.In addition, solenoid valve independent temperature system can be by the aperture of each electric expansion valve
Situation is fed back into multi-connected machine host controller, after master controller carries out confluence analysis, then to the frequency of frequency-changeable compressor into
Row is adjusted, and remains warm in computer room jointly by the coordinated of the running frequency of the aperture and frequency-changeable compressor of electric expansion valve
Humidity environment it is constant.
Step6: as shown in Fig. 2, after detecting that calculator room equipment is shut down, system is automatically to independent humidity control cooling module (6)
It is shut down, then multi-joint machine host (1) is shut down again.
The present invention is not limited to each embodiments described above, can also carry out not departing within the scope of spirit of the invention
Various modifications.
Claims (9)
1. the control system of machine room air conditioner based on multi-connected air conditioner, it is characterised in that: the computer room based on multi-connected air conditioner is empty
Control system, including four big components are adjusted, the first big component is multi-connected machine host system；The second largest component is computer room multi-connected machine multimode
Block end system；The third-largest component is independent humidity control cooling module；The fourth-largest component is control system, is led between first three big component
Corresponding pipeline, multistage feed liquor fork-shaped and combed branch pipe, electric expansion valve, solenoid valve and other auxiliary devices is crossed to connect
It forms；The quantity of the computer room multi-connected machine multimode end system is related to the overall load size of host, according to computer room end
The hot humidity load size of equipment determines the cooling load size of each end system, several to constitute entirely to dozens of end system
Multi-connected machine end and its host system；The control system include multi-connected machine host computer control module, electronic expansion valve controls module,
Each air conditioner in machine room end solenoid valve independent temperature system, independent humidity control cooling module temperature control system and its sensor, temperature controller；
The control system operating mode are as follows:
Step1: temperature and humidity setting is carried out to the more ends of air conditioner in machine room, starts multi-joint machine host；
Step2: starting independent humidity control cooling module, while starting multimode air conditioner in machine room end；
Step3: more end computer room module air conditioner systems work independently according to the temperature and humidity being respectively arranged；
Step4: the start-stop of each end solenoid valve independent temperature system control solenoid 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, the shutdown of independent humidity control cooling module is first carried out, then multi-joint machine host is stopped
Machine.
2. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, operating mode step1 feature
Be: the starting and shutdown of air conditioner in machine room host are operated according to building environment temperature, right in some high humidity low temp areas
After air conditioner in machine room end carries out temperature and humidity setting, if circumstance temperature is lower than setting temperature, then host not will start, so opening for the first time
Multi-joint machine host is to be required according to the temperature setting of independent humidity control cooling module to pre-actuate the operation of multi-joint machine host, then
The unlatching of each terminus module is carried out again, runs and be automatically stopped end operation, adjust automatically host running frequency.
3. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, operating mode step2 feature
It is: after multi-connected machine host-initiated, starts independent humidity control cooling module and adjust computer room humidity, it is according to computer room humidity real-time
Adjusting controls the aperture of the electric expansion valve of this independent humidity control cooling module to maintain the stabilization of computer room humidity, this independent humidity control drop
The electric expansion valve of warm module is run with certain aperture to guarantee the operation of multi-joint machine host always, while starting each air conditioner in machine room
Terminus module carries out the adjusting of computer room temperature, increases and decreases frequency-changeable compressor frequency according to computer room temperature actual conditions to increase-decrease plan
Cryogen flow adjusts each regional temperature.
4. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, operating mode step3 feature
Be: each air conditioner in machine room terminus module is distributed in the different zones of computer room, because of each regional Electronic component, lighting apparatus, goes along with sb. to guard him
The distributed heat of structure it is different and caused by the non-uniform phenomenon of region thermic load will lead to supply air temperature required for each end
Difference, this electric expansion valve for allowing for controlling each air conditioner in machine room terminus module need to be according to the temperature and humidity situation in respective region
To adjust respective aperture；When computer room temperature is lower than corresponding end solenoid valve independent temperature system desired temperature, each machine
The solenoid valve of room air conditioning terminal module is closed in advance, and then closes corresponding electric expansion valve, at this moment corresponding host frequency meeting
Its working frequency is automatically adjusted according to the aperture of electric expansion valve and start-stop quantity, end quantity is fewer, the work frequency of host
Rate is lower, and energy consumed by system is fewer, and the electric expansion valve of independent humidity control cooling module is still according to phase at this time
Aperture is answered to work on, multiple host would not be shut down, and guarantee that computer room humidity environment meets the service requirement of electronic equipment；When
The corresponding electronic equipment dissipating heat amount in each end increases, so that respective ends temperature is more than set temperature, at this moment control system
The electric expansion valve and solenoid valve just automatic starting operation, can be further reduced the temperature fluctuation of each end-equipment, temperature
Degree control precision can be easily reached ± 0.5 DEG C of range, further ensured the reliable and stable operation of computer room, also ensured
The reliable round-the-clock whole year continual operation of communication apparatus.
5. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, operating mode step4 feature
Be: each end solenoid valve independent temperature system adjusts electronic expansion valve opening and start-stop according to respective region actual heating load
The constant of one's respective area temperature and humidity is maintained to guarantee appropriate refrigerant flow；Independent humidity control cooling module is according to humidity in computer room
Situation carries out the aperture regulation of its electric expansion valve, is not influenced by other air conditioner in machine room terminus modules, only wet with computer room
The variation of degree and change.
6. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, operating mode step5 feature
It is: is caused the aperture for controlling each air conditioner in machine room terminus module electric expansion valve different according to the difference of each region thermic load,
Also just corresponding increase and decrease, running frequency increase refrigerant flow needed for each terminus module, and refrigerant flow also just increases accordingly, on the contrary
?；For the frequency-changeable compressor in multi-joint machine host, running frequency need to according to the practical refrigerant flow in each end it
Be adjusted, therefore when respective electronic expansion valve opening is fed back to compressor host by each end solenoid valve independent temperature system
Afterwards, host is handled the adjusting for carrying out frequency-changeable compressor frequency again, to guarantee the stabilization of system circulation；Solenoid valve independent temperature
System can feed back the aperture situation of each electric expansion valve into multi-connected machine host controller, carry out confluence analysis in master controller
Afterwards, then to the frequency of frequency-changeable compressor it is adjusted, passes through the running frequency of the aperture and frequency-changeable compressor of electric expansion valve
Coordinated maintains the constant of temperature and humidity environment in computer room jointly.
7. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, each air conditioner in machine room end electricity
Magnet valve independent temperature system is characterized in that: the air conditioner in machine room end solenoid valve independent temperature system operating mode is electronic expansion
Valve and solenoid valve cooperate, the opening size of the temperature control system control electric expansion valve of electric expansion valve, solenoid valve and its right
The set temperature for the temperature control system control computer room electronic equipment end answered, when electronic equipment actual temperature is more than set temperature 0.5
DEG C~2 DEG C when, expansion valve is opened, and corresponding electric expansion valve also opens；When electronic equipment actual temperature is lower than set temperature 0.5
DEG C~2 DEG C when, power of electromagnetic valve is closed, and corresponding electric expansion valve is also switched off, and at this moment the overall load of host is reduced, host fortune
Line frequency accordingly reduces, and reduces host work energy consumption, and 0.5 DEG C~2 DEG C of temperature range therein can be by user according to being controlled
The required precision of object is set and is changed.
8. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, independent humidity control cooling module
Temperature control system is characterized in that: the independent humidity control cooling module temperature control system only includes electric expansion valve temperature control system, is not needed
Solenoid valve temperature control system is configured, corresponding electric expansion valve temperature sensor does not incude the temperature of computer room electronic equipment itself yet
Degree is in external state, can thus ensure that corresponding electric expansion valve is constantly in unlatching working condition, corresponding multi-joint
Machine host is also just constantly in booting operating status, and the running frequency of host is directly related with overall load, receives host jointly
The control of control system, when only independent humidity control cooling module works, at this moment host running frequency is very low, also just ensures in this way
When computer room tail end air conditioner system does not work, in the environment of low temperature and high relative humidity, independent humidity control cooling module play independent humidity control and
The target of certain calculator room equipment cooling, calculator room equipment will not be lower than because of environment temperature set by temperature when, relative humidity mistake
Greatly, so that computer room electronic equipment surface moisture is excessive, serious conditions lower surface moisture condensation, reduce calculator room equipment operational reliability and
Working life.
9. the control system of machine room air conditioner according to claim 1 based on multi-connected air conditioner, independent humidity control cooling module
Temperature control system is characterized in that: the temperature setting of the independent humidity control cooling module is lower than the more terminal temperatures of corresponding air conditioner in machine room,
In actual operation, the external induction environment temperature of the temperature sensor of independent humidity control cooling module, independent humidity control cooling module
Shutdown temperature is 5 DEG C~10 DEG C lower than corresponding environment temperature, but higher than corresponding refrigeration system evaporating temperature by 5 DEG C~10
℃。
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| CN107166647B (en) * | 2017-05-19 | 2020-06-16 | 青岛海尔空调电子有限公司 | Multi-split 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 | ***通信集团内蒙古有限公司 | Data center air conditioner tail end temperature control method, device and 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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| 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 |
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