CN106358425A - Backup system for temperature control units of liquid cooling unit and control method thereof - Google Patents
Backup system for temperature control units of liquid cooling unit and control method thereof Download PDFInfo
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- CN106358425A CN106358425A CN201610929561.9A CN201610929561A CN106358425A CN 106358425 A CN106358425 A CN 106358425A CN 201610929561 A CN201610929561 A CN 201610929561A CN 106358425 A CN106358425 A CN 106358425A
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- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 title abstract description 3
- 238000004891 communication Methods 0.000 claims abstract description 61
- 230000003750 conditioning effect Effects 0.000 claims description 250
- 238000001514 detection method Methods 0.000 claims description 18
- 230000000284 resting effect Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000005856 abnormality Effects 0.000 claims description 4
- 230000009885 systemic effect Effects 0.000 claims description 4
- 238000010977 unit operation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Conditioning Control Device (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Thermal Sciences (AREA)
Abstract
The invention provides a backup system for temperature control units of a liquid cooling unit and a control method thereof. The backup system comprises N operating temperature control units and M spare temperature control units, wherein all the temperature control units are connected by a communication network; and each temperature control unit outputs (N+M-1) operating-state dry contacts and reserves (N+M-1) digital input points for detecting the operating states of all other temperature control units except the current temperature control unit. The backup system and the control method provided by the invention have the advantages that the switching of the operating and backup states of all the temperature control units according to operating time and the fault level of all the temperature control units under the condition of normal communication and switching of the operating and backup states of all the temperature control units according to the fault level of all the temperature control units under the condition of failed communication are realized, so that the operation of N temperature control units and spare use of M temperature control units all the time in the system are guaranteed.
Description
Technical field
The present invention relates to industrial control field, particularly to a kind of liquid cold group temperature conditioning unit standby system and its controlling party
Method.
Background technology
Currently in order to realize liquid cold group temperature conditioning unit run and Standby control typically have two schemes, one kind is to use one
To each liquid, cold temperature conditioning unit is managed collectively individual external controller, realizes fault rotation and time rotation.This method
Very high to the reliability requirement of external controller, typically with the two-node cluster hot backup controller with redundancy control capability, should
Scheme is relatively costly；Another kind is that liquid each temperature conditioning unit of cold group is interconnected by communication, the then control of each temperature conditioning unit
Device mutual communicating information processed, the program can make system normally run when communicating normal, but work as and communication abnormality in system
When, typically can only take the mode of each self-operating of the cold temperature conditioning unit of each liquid, this can lead to originally be in resting state in system
All temperature conditioning units also behave, this for whole liquid cooling system, equal to had more back-up system water pump put into
Run, this not only can affect water temperature parameters, also can increase the pressure of pipeline pressure-bearing and distribution aspect.
It can be seen that, prior art could be improved and improves.
Content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of liquid cold group temperature conditioning unit is standby
Part system and its control method are it is intended to realize that liquid cold group temperature conditioning unit runs and backup rotation is carried out, and reduce scheme and implement
Cost.
In order to achieve the above object, this invention takes technical scheme below:
A kind of liquid cold group temperature conditioning unit standby system is it is characterised in that the temperature conditioning unit of n operation of inclusion and m are individual standby
Temperature conditioning unit, wherein n >=1, m >=1；Each temperature conditioning unit described sets up mutually connection by communication network；Setting is wherein appointed
Temperature conditioning unit based on one temperature conditioning unit, described main temperature conditioning unit collects the running status of each temperature conditioning unit, communicates positive reason
Under condition, run time according to each temperature conditioning unit and fault level switch operation and the Status of Backups of each temperature conditioning unit；Institute
Each temperature conditioning unit output (n+m-1) the individual running status dry contact stated；Each described temperature conditioning unit reserves (n+m-1) number
Word amount input point is used for the running status of detection each temperature conditioning unit other in addition to itself, in the case of communication abnormality, according to
The fault level of each temperature conditioning unit switches operation and the Status of Backups of each temperature conditioning unit.
In described liquid cold group temperature conditioning unit standby system, each temperature conditioning unit described includes a controller respectively,
Each controller described has communication port, and each controller passes through signal line connecting communication mouth and sets up communication connection.
In described liquid cold group temperature conditioning unit standby system, described communication port is rs485 communication interface, is adopted
Communications protocol is modbus-rtu.
In described liquid cold group temperature conditioning unit standby system, each temperature conditioning unit controller described is respectively provided with one not
With address code, the voluntarily startup in system communication fault of the numerical value of described address code its setting of lower temperature conditioning unit prolongs
When shorter.
In described liquid cold group temperature conditioning unit standby system, the numerical value of the described address code of each temperature conditioning unit is 1-
(n+m) numerical value between, address code numerical value be 1 temperature conditioning unit start-up study the shortest, address code numerical value be (n+m) temperature control list
First start-up study is the longest.
A kind of control method of liquid cold group temperature conditioning unit standby system, the method comprising the steps of:
S100, each temperature conditioning unit described is detected and cold to liquid to temperature, pressure signal in respective temperature conditioning unit respectively
Each water pump of unit, water valve are controlled；
S200, when communicating normal, main temperature conditioning unit collects the running state information of each temperature conditioning unit, according to each temperature control list
The run time of unit and fault level switch over to the running status of temperature conditioning unit it is ensured that n temperature conditioning unit operation, and m warm
Control unit is standby；When there is communication failure, execution step s300；
S300, the detection of each temperature conditioning unit is in the temperature conditioning unit quantity of running status, if the temperature conditioning unit of operation is detected
Quantity does not then do any action for n, if temperature conditioning unit quantity operation is detected is less than n, execution step s400；
S400, the temperature conditioning unit being in resting state is started successively by the order of systemic presupposition, until it reaches at n temperature conditioning unit
In running status, m temperature conditioning unit is in resting state.
Each temperature conditioning unit in the described control method of liquid cold group temperature conditioning unit standby system, described in step s300
Detection be in running status temperature conditioning unit quantity particularly as follows:
Described each temperature conditioning unit output (n+m-1) individual running status dry contact；Each described temperature conditioning unit reserves (n+m-
1) individual digital quantity input point is used for the running status of detection other described temperature conditioning units in addition to itself.
The control method of described liquid cold group temperature conditioning unit standby system is it is characterised in that pre- described in step s400
If order particularly as follows:
Each liquid cold temperature conditioning unit controller is respectively arranged with a different address code, the lower temperature of the numerical value of described address code
The voluntarily start-up study in system communication fault of control its setting of unit is shorter.
In the described control method of liquid cold group temperature conditioning unit standby system, step s300 also includes:
When being originally in the temperature conditioning unit of running status and temperature conditioning unit inner part is detected the fault that need to shut down occurs, this temperature control list
Unit is out of service and disconnects the running status dry contact of this temperature conditioning unit.
Beneficial effect:
The invention provides a kind of liquid cold group temperature conditioning unit standby system and its control method, described liquid cold group temperature control list
First standby system includes temperature conditioning unit and the individual standby temperature conditioning unit of m of n operation；Each temperature conditioning unit described is set up mutually
Communication connects；Each temperature conditioning unit described exports (n+m-1) individual running status dry contact；Each described temperature conditioning unit reserves (n
+ m-1) individual digital quantity input point, for the running status of detection each temperature conditioning unit other in addition to itself.Achieve communication
Run time according to each temperature conditioning unit and fault level switch over the operation of temperature conditioning unit and standby shape under normal circumstances
State；By digital quantity input point to the detection of individual temperature conditioning unit running status it is achieved that according to each in the case of communication failure
The fault level of individual temperature conditioning unit switches each temperature conditioning unit running status and resting state, thereby ensure that system is in communication just
Often and in the case of fault, n temperature conditioning unit is had to run in system all the time, m temperature conditioning unit is standby.
Brief description
A kind of structured flowchart of liquid cold group temperature conditioning unit standby system that Fig. 1 provides for the present invention.
A kind of flow chart of the control method of liquid cold group temperature conditioning unit standby system that Fig. 2 provides for the present invention.
Specific embodiment
The present invention provides a kind of liquid cold group temperature conditioning unit standby system and its control method, for make the purpose of the present invention,
Technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.Should
Understand, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, for avoiding repeating, in Fig. 1, other unshowned temperature conditioning units and signal line etc. are represented by dashed line.This
Invention provides a kind of liquid cold group temperature conditioning unit standby system it is characterised in that including the n temperature conditioning unit running and m
Standby temperature conditioning unit, wherein n >=1, m >=1；Each temperature conditioning unit described sets up mutually connection by communication network；It is set
In temperature conditioning unit based on any one temperature conditioning unit, described main temperature conditioning unit collects the running status of each temperature conditioning unit, and communication is just
In the case of often, the run time according to each temperature conditioning unit and fault level switch the operation of each temperature conditioning unit and back up shape
State；Described each temperature conditioning unit output (n+m-1) individual running status dry contact；Each described temperature conditioning unit reserves (n+m-
1) individual digital quantity input point is used for the running status of detection each temperature conditioning unit other in addition to itself, communication abnormality situation
Under, switch operation and the Status of Backups of each temperature conditioning unit according to the fault level of each temperature conditioning unit.
In order to make it easy to understand, setting n=2, m=2 in the present embodiment, that is, (n+m) temperature conditioning unit is the 4th temperature conditioning unit；If
Temperature conditioning unit based on fixed first temperature conditioning unit.
Specifically, the first temperature conditioning unit 10, the second temperature conditioning unit 20, the 3rd temperature conditioning unit (not shown) and the 4th temperature
Control unit 40 is each connected with corresponding each water pump, water valve in liquid cold group, for realizing temperature, pressure in respective temperature conditioning unit
The detection of signal and the corresponding each water pump of control, water valve.Each described temperature conditioning unit is set up mutually communication and is connected, and described the
One temperature conditioning unit collects run time and the running status of each temperature conditioning unit.First temperature conditioning unit is respectively to the second temperature control list
Unit, the 3rd temperature conditioning unit, the 4th temperature conditioning unit constantly send pulse signal, for the second temperature conditioning unit, the 3rd temperature conditioning unit,
Whether four temperature conditioning unit detections are each normal with the communication of the first temperature conditioning unit；Second temperature conditioning unit, the 3rd temperature conditioning unit, the 4th
Temperature conditioning unit each produces pulse signal for being detected by the first temperature conditioning unit.When communicate normal when, the first temperature conditioning unit according to
The run time of each temperature conditioning unit and running status switch the operation of each temperature conditioning unit and resting state it is ensured that system begins to have
2 temperature conditioning units run and 2 temperature conditioning units are standby.
The controller of each described temperature conditioning unit exports the digital output point of 1 temperature conditioning unit running status respectively,
Again 3 same running status dry contacts are separately converted to by auxiliary reclay, above-mentioned 3 running statuses converting respectively are done
Contact is connected respectively to the controller of the cold temperature conditioning unit of other 3 liquid.Therefore, when there is communication failure, described each is controlled
Device processed is reserved 3 digital quantities and is inputted test point, for detecting the running status of the cold temperature conditioning unit of other 3 liquid.Specific as follows:
A, the controller of the temperature conditioning unit of resting state is in originally for any one, if digital quantity inputs the detection of test point
Determine and in system, have 2 temperature conditioning units running, then the controller of this resting state continues to keep resting state；If digital quantity
Input test point detects and is less than 2 temperature conditioning units in system in operation, and now the sequence starting according to systemic presupposition is standby
Temperature conditioning unit is until there are 2 temperature conditioning units to be in running status.
B, any one was in originally running status the cold temperature conditioning unit of liquid controller, when detecting in temperature conditioning unit
When part occurs the fault that need to shut down, then control the temperature conditioning unit that this controller is located out of service and cold for liquid temperature conditioning unit
Running status dry contact disconnects.
C, whether there is communication failure with the first temperature conditioning unit, the cold temperature conditioning unit of the second liquid, the 3rd temperature conditioning unit with
And the 4th temperature conditioning unit all produce pulse signal.Therefore, when communication failure eliminates, the first temperature conditioning unit is able to detect that pulse
Signal and to determine that whole system has recovered communication normal.When communication recovers normal, reactivate communication modes and realize each
Temperature conditioning unit switches over operation and resting state according to run time and fault level.
Therefore, when system occurs communication failure, remain to by digital quantity input point to each temperature conditioning unit running status
The failover of each temperature conditioning unit in system is realized in detection it is ensured that whole system still has n temperature conditioning unit to run, m temperature
Control unit is standby.
Further, in described liquid cold group temperature conditioning unit standby system, each temperature conditioning unit described includes one respectively
Individual controller, each controller described carries communication port, and the communication port of each temperature controller is connected by signal line and sets up
Communication.Set up by signal line due to each controller described and connect, implement simple, communication robust.
In the present embodiment, the communication port of described controller is rs485 communication interface, is sequentially connected respectively using rs485 bus
The communication interface of individual temperature conditioning unit, the communications protocol employed in the present embodiment is modbus-rtu, therefore improves each temperature
Communication transmission efficiency between control unit, improves the reliability of system.
Further, in described liquid cold group temperature conditioning unit standby system, each temperature conditioning unit controller described is respectively
One different address code of setting, the numerical value of described address code its setting of lower temperature conditioning unit in system communication fault
Voluntarily start-up study is shorter.In the case that system occurs communication failure, 2 temperature conditioning units are originally had to be in normal operation shape
State, breaks down if there are 1 temperature conditioning unit and leads to only 1 temperature conditioning unit to run, be then in the temperature conditioning unit of standby 2
Low (start-up study the is short) temperature conditioning unit of address code numerical value starts it is ensured that there being 2 temperature conditioning units to run in system, another 2 temperature controls
Unit is standby.
In the present embodiment, set the address code of the first temperature conditioning unit as 1, start-up study is 0 second；The ground of the second temperature conditioning unit
Location code is 2, and start-up study is 2 seconds；The address code of the 3rd temperature conditioning unit is 3, and start-up study is 4 seconds；The ground of the 4th temperature conditioning unit
Location code is 4, and start-up study is 6 seconds.
In sum, the present invention passes through each temperature conditioning unit is set up mutually communication connection, is inputted by digital quantity simultaneously
Point is detected to each temperature conditioning unit running status it is achieved that when communicating normal, according to during the operation of each temperature conditioning unit
Between and fault level the running status of each temperature conditioning unit is switched over；When there is communication failure, according to each temperature control list
The fault level of unit switches over to the running status of each temperature conditioning unit, it is achieved that n temperature conditioning unit in guarantee system
Run, m temperature conditioning unit is standby.
Refer to Fig. 2, a kind of control method of liquid cold group temperature conditioning unit standby system, methods described includes following step
Rapid:
S100, each temperature conditioning unit described is detected and cold to liquid to temperature, pressure signal in respective temperature conditioning unit respectively
Each water pump of unit, water valve are controlled；
S200, when communicating normal, main temperature conditioning unit collects the running state information of each temperature conditioning unit, according to each temperature control list
The run time of unit and fault level switch over to the running status of temperature conditioning unit it is ensured that n temperature conditioning unit operation, and m warm
Control unit is standby；When there is communication failure, execution step s300；
S300, the detection of each temperature conditioning unit is in the temperature conditioning unit quantity of running status, if the temperature conditioning unit of operation is detected
Quantity does not then do any action for n, if temperature conditioning unit quantity operation is detected is less than n, execution step s400；
S400, the temperature conditioning unit being in resting state is started successively by the order of systemic presupposition, until it reaches at n temperature conditioning unit
In running status, m temperature conditioning unit is in resting state.
Further, each temperature control in the control method of liquid cold group temperature conditioning unit standby system, described in step s300
Unit detection be in running status temperature conditioning unit quantity particularly as follows:
Described each temperature conditioning unit output (n+m-1) individual running status dry contact；Each described temperature conditioning unit reserves (n+m-
1) individual digital quantity input point is used for the running status of detection other described temperature conditioning units in addition to itself.
Further, the default order described in step s400 is particularly as follows: each liquid cold temperature conditioning unit controller sets respectively
Be equipped with a different address code, the numerical value of described address code lower its setting of temperature conditioning unit in system communication fault
Voluntarily start-up study is shorter.
The control method of described liquid cold group temperature conditioning unit standby system is it is characterised in that step s300 also includes: former
Originally be in running status temperature conditioning unit detect temperature conditioning unit inner part occur need to shut down fault when, this temperature conditioning unit stop
Run and the running status dry contact of this temperature conditioning unit is disconnected.
In sum, the control method of a kind of liquid cold group temperature conditioning unit standby system that the present invention provides, by each
Temperature conditioning unit is set up communication and is connected it is achieved that communicating the run time according to each temperature conditioning unit and fault etc. under normal circumstances
Level switches over operation and the resting state of temperature conditioning unit；By the inspection to individual temperature conditioning unit running status for the digital quantity input point
Survey it is achieved that each temperature conditioning unit running status is switched according to the fault level of each temperature conditioning unit in the case of communication failure
And resting state is it is ensured that system has n temperature conditioning unit to run in communication normally and in the case of fault all the time in system, m
Temperature conditioning unit is standby.
It is understood that for those of ordinary skills, with technology according to the present invention scheme and its can send out
Bright design in addition equivalent or change, and all these change or replace the guarantor that all should belong to appended claims of the invention
Shield scope.
Claims (9)
1. a kind of liquid cold group temperature conditioning unit standby system is it is characterised in that the temperature conditioning unit of n operation of inclusion and m are individual standby
Temperature conditioning unit, wherein n >=1, m >=1；Each temperature conditioning unit described sets up mutually connection by communication network；Setting is wherein
Temperature conditioning unit based on any one temperature conditioning unit, described main temperature conditioning unit collects the running status of each temperature conditioning unit, and communication is normal
In the case of, run time according to each temperature conditioning unit and fault level switch operation and the Status of Backups of each temperature conditioning unit；
Described each temperature conditioning unit output (n+m-1) individual running status dry contact；It is individual that each described temperature conditioning unit reserves (n+m-1)
Digital quantity input point is used for the running status of detection each temperature conditioning unit other in addition to itself, in the case of communication abnormality, root
Switch operation and the Status of Backups of each temperature conditioning unit according to the fault level of each temperature conditioning unit.
2. liquid cold group temperature conditioning unit standby system according to claim 1 is it is characterised in that each temperature conditioning unit described
Include a controller respectively, each controller described has communication port, and each controller is built by signal line connecting communication mouth
Vertical communication connects.
3. liquid cold group temperature conditioning unit standby system according to claim 2 is it is characterised in that described communication port is
Rs485 communication interface, the communications protocol being adopted is modbus-rtu.
4. liquid cold group temperature conditioning unit standby system according to claim 3 is it is characterised in that each temperature conditioning unit described
Controller is respectively provided with a different address code, the leading in system of lower its setting of temperature conditioning unit of the numerical value of described address code
Voluntarily start-up study during news fault is shorter.
5. liquid cold group temperature conditioning unit standby system according to claim 4 is it is characterised in that described each temperature control list
Unit address code numerical value be 1-(n+m) between numerical value, address code numerical value be 1 temperature conditioning unit start-up study the shortest, address
Yardage value is that the temperature conditioning unit start-up study of (n+m) is the longest.
6. the control method of the liquid cold group temperature conditioning unit standby system as described in a kind of any one as claim 1-5, its feature
It is, the method comprising the steps of:
S100, each temperature conditioning unit described is detected and cold to liquid to temperature, pressure signal in respective temperature conditioning unit respectively
Each water pump of unit, water valve are controlled；
S200, when communicating normal, main temperature conditioning unit collects the running state information of each temperature conditioning unit, according to each temperature control list
The run time of unit and fault level switch over to the running status of temperature conditioning unit it is ensured that n temperature conditioning unit operation, and m warm
Control unit is standby；When there is communication failure, execution step s300；
S300, the detection of each temperature conditioning unit is in the temperature conditioning unit quantity of running status, if the temperature conditioning unit of operation is detected
Quantity does not then do any action for n, if temperature conditioning unit quantity operation is detected is less than n, execution step s400；
S400, the temperature conditioning unit being in resting state is started successively by the order of systemic presupposition, until it reaches at n temperature conditioning unit
In running status, m temperature conditioning unit is in resting state.
7. the control method of liquid cold group temperature conditioning unit standby system according to claim 6 is it is characterised in that step
Described in s300 each temperature conditioning unit detection be in running status temperature conditioning unit quantity particularly as follows:
Described each temperature conditioning unit output (n+m-1) individual running status dry contact；Each described temperature conditioning unit reserves (n+m-
1) individual digital quantity input point is used for the running status of detection other described temperature conditioning units in addition to itself.
8. the control method of the liquid cold group temperature conditioning unit standby system according to claim 6 or 7 is it is characterised in that walk
Rapid default order described in s400 particularly as follows:
Each liquid cold temperature conditioning unit controller is respectively arranged with a different address code, the lower temperature of the numerical value of described address code
The voluntarily start-up study in system communication fault of control its setting of unit is shorter.
9. the control method of liquid cold group temperature conditioning unit standby system according to claim 7 is it is characterised in that step
S300 also includes:
When being originally in the temperature conditioning unit of running status and temperature conditioning unit inner part is detected the fault that need to shut down occurs, this temperature control list
Unit is out of service and disconnects the running status dry contact of this temperature conditioning unit.
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| CN1979363A (en) * | 2005-12-09 | 2007-06-13 | 广州番禺速能冷暖设备有限公司 | Constant-temperature constant-humidity air-conditioner host/spare machine control system |
| CN201359700Y (en) * | 2009-02-27 | 2009-12-09 | 德阳市伊诗特科技有限公司 | Sea water desalinization control system provided with redundant controller and redundant network |
| CN102455059A (en) * | 2010-10-17 | 2012-05-16 | 青岛三利中德美水设备有限公司 | Cluster controlled heat pump hot water system |
| CN105865130A (en) * | 2016-04-27 | 2016-08-17 | 青岛海尔股份有限公司 | Constant-temperature refrigerator and control method thereof |
| CN206196220U (en) * | 2016-10-31 | 2017-05-24 | 广东申菱环境系统股份有限公司 | Liquid cooling unit control by temperature change unit standby system |
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| CN112350584A (en) * | 2020-09-17 | 2021-02-09 | 珠海格力电器股份有限公司 | Heat dissipation control device and method for power device and electrical equipment |
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