CN1493830A - Energy meter based ice water machine automatic control system - Google Patents
Energy meter based ice water machine automatic control system Download PDFInfo
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- CN1493830A CN1493830A CNA021461597A CN02146159A CN1493830A CN 1493830 A CN1493830 A CN 1493830A CN A021461597 A CNA021461597 A CN A021461597A CN 02146159 A CN02146159 A CN 02146159A CN 1493830 A CN1493830 A CN 1493830A
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- frozen water
- water machine
- energy meter
- control system
- automatic control
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Abstract
An automatic control system based on energy meter for the water refrigerating machine features that the actual refrigerating power is compared with the maximal and the minimal refrigerating powers set up by energy meter for determinng the number of refrigerators which must be working, According to the compared result, the primary controller sends the control signals to secondary controller to activate the additional refrigerators or stop the excessive refrigerators.
Description
Technical field
The invention relates to a kind of frozen water machine automatic control system, and particularly relevant for a kind of frozen water machine automatic control system based on energy meter.
Background technology
Along with advancing by leaps and bounds of science and technology, there is increasing high-tech factory need use frozen water machine system, and how makes numerous frozen water functions accomplish that running automatically and self-fault get rid of, the target that has then become now everybody to make great efforts to improve.
Fig. 1 is known a kind of frozen water machine automatic control system, and frozen water machine automatic control system 10 is divided into primary side loop 12 and secondary side loop 14, and wherein bypass pipe 18 connects primary side loop 12 and secondary side loop 14.By the frozen water of frozen water machine 102 outputs, flow to two logical control valves 112 and secondary side pumping 114 through frozen water pipe 106, send frozen water by the frozen water outlet again.And the frozen water inlet is sent to primary side pumping 104 with the secondary frozen water by frozen water pipe 106, but part secondary frozen water can flow to two logical control valves 112 through bypass pipe 18, and causes the frozen water temperature of frozen water outlet to rise.
Wherein, contain five Temperature Detectors 110 around the frozen water pipe 106 so that can measure the frozen water temperature in the frozen water pipe 106 at any time, and the activation of controlling next frozen water machine by frozen water variation of temperature and other frozen water machine load ratio with close.
Comprehensive the above, the shortcoming of known frozen water machine automatic control system is:
(1) known frozen water machine automatic control system must be installed one or more Temperature Detectors in frozen water machine automatic control system, so that can detect the frozen water temperature in the frozen water pipe of many places at any time.
(2) known frozen water machine automatic control system owing to need a plurality of Temperature Detectors of installing, causes frozen water machine automatic control system cost height.
Summary of the invention
The present invention proposes a kind of frozen water machine automatic control system based on energy meter, be to compare according to the highest frozen water ton of refrigeration that sets in the energy meter or minimum frozen water ton of refrigeration and actual frozen water ton of refrigeration by master controller, the platform number of stress living with decision frozen water machine, and behind the platform number of platform number that frozen water machine relatively stress be lived and the actual activation of frozen water machine, determine under-active frozen water board number or close the frozen water board number that has more.
The present invention proposes a kind of frozen water machine automatic control system based on energy meter in addition, when the frozen water board number that stress live shown in frozen water board number in the running and the energy meter is not inconsistent, master controller will send the control signal that activates or cut out, activate or close another frozen water machine by less important controller, so that frozen water machine automatic control system is done the running of optimum efficiency.
For reaching above-mentioned purpose with other, the present invention proposes a kind of frozen water machine automatic control system based on energy meter, and this frozen water machine automatic control system comprises: frozen water machine and master controller.Above-mentioned frozen water machine installs, can accept the activation of frozen water machine automatic control system at any time or closes.Above-mentioned master controller compares according to the highest frozen water ton of refrigeration that sets in the energy meter or minimum frozen water ton of refrigeration and actual frozen water ton of refrigeration, the platform number of stress living with decision frozen water machine, and behind the frozen water board number that the frozen water board number that relatively stress live and reality activate, determine under-active frozen water board number or close the frozen water board number that has more.
Wherein, master controller form by a plurality of control modules and these control modules acting each other.This frozen water machine automatic control system also includes less important controller, is used for receiving the control signal that master controller sends, and activates or close frozen water machine and relevant device according to control signal.
In a preferred embodiment of the present invention, energy meter includes next frozen water machine of activation the highest required frozen water ton of refrigeration, and, master controller activates certain frozen water machine when sending the control signal desire, and this frozen water machine is in predefined activation time delay, after confirming that the frozen water ton of refrigeration demand that increases is the noise of steady demand rather than control signal, promptly activate this frozen water machine, so that frozen water machine automatic control system is done the running of optimum efficiency.In addition, energy meter also comprises closes a minimum frozen water ton of refrigeration that the frozen water machine is required, and, master controller desires to close a frozen water machine when sending control signal, and this frozen water machine is in predefined turn-off delay time, after confirming that the frozen water ton of refrigeration demand that reduces is the noise of steady demand rather than control signal, promptly close this frozen water machine, so that frozen water machine automatic control system is done the running of optimum efficiency.And, the maximum ice water load amount after when also comprising frozen water board number and frozen water machine in the energy meter and activating.
In a preferred embodiment of the present invention, the relevant device of frozen water machine comprises: frozen water pumping, cooling water pumping, control valve.
In a preferred embodiment of the present invention, when no frozen water machine turns round in all frozen water machine automatic control systems, frozen water machine automatic control system will activate wherein frozen water machine, so that the frozen water temperature that provides reaches frozen water machine requirement of automatic control system.
Description of drawings
Fig. 1 is known a kind of frozen water machine automatic control system;
Fig. 2 is a kind of frozen water machine automatic control system block diagram of embodiments of the invention;
Fig. 3 is the energy meter of a kind of frozen water machine automatic control system running foundation of embodiments of the invention;
Fig. 4 is a kind of frozen water machine automatic control system run chart based on energy meter of embodiments of the invention;
Fig. 5 is input state and system's controlling party block diagram of a kind of master controller of embodiments of the invention; And
Fig. 6 is the SCHP pumping system control flow chart in a kind of frozen water machine automatic control system of embodiments of the invention.
10: frozen water machine automatic control system
12: the primary side loop
14: the secondary side loop
20,30: master controller
22: modular bus
24: less important controller
26,102: the frozen water machine
28: frozen water machine relevant device
32: input state
36: system's control
104: the primary side pumping
106: the frozen water pipe
108: bypass pipe
110: Temperature Detector
112: two logical control valves
114: the secondary side pumping
202,302: control module
282: the frozen water pumping
284: the cooling water pumping
286: control valve
320: power supply status
322: frozen water machine state
324: the frozen water temperature
326: pump state
328: the cooling tower state
330: energy and power supply metering
332: the equipment state of frozen water machine
334: outside air temperature
336：PDT
338: the control network system situation
340: sensor
360: the control water treatment system
362: activate/close 5 ℃ of frozen water machine systems
364: control cooling tower filtration system
366: cooling tower control
368: control SCHP Pu
370: frozen water water quantity management system
372: control temperature/hot-water heating system
374: activate/close 9 ℃ of frozen water machine systems
376: the pipe arrangement monitoring system
S102～S128: indicate each flow process
S202～S212: indicate each flow process
The specific embodiment
Fig. 2 is a kind of frozen water machine automatic control system block diagram of embodiments of the invention, master controller 20 shown in the figure be according to the highest frozen water ton of refrigeration in the energy meter (as shown in Figure 3) or minimum frozen water ton of refrigeration and actual frozen water ton of refrigeration relatively after, the platform number of stress living of decision frozen water machine 26, and behind 26 numbers of frozen water machine that 26 numbers of frozen water machine that relatively stress live and reality activate, produce 26 numbers of under-active frozen water machine or close the control signal of 26 numbers of frozen water machine that have more, and send control signal, wherein master controller 20 includes a plurality of control modules 202, and these control modules 202 are acting each other, a certain when having control module 202 faults of control, automatically control is switched to another control module 202 by frozen water machine automatic control system, as those skilled in the art as can be known, but control module 202 can be program logic.Control signal is in modular bus 22 is sent to less important controller 24, less important controller 24 is according to received control signal, activate or close frozen water machine 26 and relevant device 28, wherein, relevant device 28 includes frozen water pumping 282, cooling water pumping 284 and control valve 286.
Then please refer to Fig. 3, it is the energy meter of a kind of frozen water machine automatic control system running foundation of embodiments of the invention, and this energy meter comprises frozen water board number, frozen water load capacity, the highest frozen water ton of refrigeration, activates time delay, minimum frozen water ton of refrigeration and turn-off delay time.Wherein, frozen water board number is the platform number of mounted frozen water machine, moreover the maximum ice water load amount of frozen water load capacity when activating for the frozen water machine, and the highest frozen water ton of refrigeration is for activating the required frozen water ton of refrigeration of next frozen water machine, and activate time delay in order to confirm that the frozen water ton of refrigeration demand that increases is the noise of steady demand rather than control signal, in addition, minimum frozen water ton of refrigeration is to close certain the frozen water ton of refrigeration that the frozen water machine is required, and turn-off delay time is then in order to confirm that the frozen water ton of refrigeration demand that reduces is the noise of steady demand rather than control signal.
In one embodiment of the invention, when no frozen water machine turns round in the frozen water machine automatic control system, frozen water machine automatic control system will activate certain frozen water machine, so that the requirement that the frozen water temperature that provides can be reached system.
Please merge with reference to Fig. 2, Fig. 3, Fig. 4, wherein, Fig. 4 is the frozen water machine automatic control system run chart according to Fig. 2 painted, this frozen water machine automatic control system by the highest frozen water ton of refrigeration in the energy meter (as shown in Figure 3) or minimum frozen water ton of refrigeration and actual frozen water ton of refrigeration relatively after, the platform number of stress living of decision frozen water machine 26, and behind 26 numbers of frozen water machine that 26 numbers of frozen water machine that relatively stress live and reality activate, determine 26 numbers of under-active frozen water machine or close 26 numbers of frozen water machine that have more, this frozen water machine automatic control system at first activates master controller 20, and automatic inspection frozen water machine automatic control system state (step S102), and set the sequencing (step S104) that frozen water machine 26 activates by the running hours of frozen water machine 26.Afterwards, begin to supply with frozen water machine 26 and relevant device 28 power supplys (step S106), but if normal power supply is then followed the sequencing of addressing frozen water machine 26, at this moment, frozen water machine 26 has reached the state (step S108) that can activate; Otherwise, set if can't normal power supply then get back to the sequencing that (step S104) frozen water machine 26 activates, and new settings more.
Simultaneously, master controller 20 determines the activation platform number (step S110) of frozen water machine 26 according to energy meter, and sends the control signal (step S112) of frozen water machine 26 and relevant device 28 through modular bus 22.Then, frozen water machine automatic control system supply power after less important controller 24 receives control signal (step S116), in regular turn activates frozen water machine 26 and its relevant device 28 (step S118) according to control signal to frozen water pumping 282 (step S114).In 26 runnings of frozen water machine simultaneously, the operating condition and the running hours (step S120) of frozen water machine automatic control system record frozen water machine 26, at last the feedback of status of frozen water machine 26 and its relevant device 28 is transmitted back to master controller 20 via modular bus 22, when frozen water machine 26 breaks down, then automatically switch into manual control (step S122) by master controller 20.
When frozen water machine 26 breaks down, manually control less important controller 24 (step S124) by master controller 20 places, then activate frozen water machine 20 and relevant device 28 (step S126) in regular turn, and pass the feedback of status of frozen water machine 26 and relevant device 28 back to master controller 20 from modular bus 22.
Please refer to Fig. 5 again, it is input state and system's controlling party block diagram of a kind of master controller of embodiments of the invention, and wherein this block diagram can be divided into master controller 30, input state 32 and system's control 36.Wherein, input state 32 inputs to master controller 30 with frozen water machine in the frozen water machine automatic control system and relevant device state, and master controller 30 then according to the setting of actual frozen water ton of refrigeration and energy meter, is controlled the running of frozen water machine automatic control system.
Input state 32 includes: power supply status 320; Frozen water machine state 322 makes master controller 30 can grasp the running situation of frozen water machine at any time; Frozen water temperature 324 activates first group of frozen water tower and frozen water machine system in surpassing setting value in the time of 3 minutes by frozen water machine automatic control system; Pump state 326; Cooling tower state 328; Energy and power supply metering 330; The equipment state 332 of frozen water machine includes control valve, two logical control valves; And outside air temperature 334; PDT336; Control network system situation 338 and sensor 340.
System's control 36 includes: control water treatment system 360; Activate or close 5 ℃ of frozen water machine systems 362; Control cooling tower filtration system 364; Cooling tower control 366; Control SCHP Pu 368; Frozen water water quantity management system 370; Control temperature/hot-water heating system 372; Activate/close 9 ℃ of frozen water machine systems 374 and pipe arrangement monitoring system 376.
Then please refer to Fig. 6, it is the SCHP pumping system control flow chart in a kind of frozen water machine automatic control system of embodiments of the invention, this SCHP pumping system is at first counted schedule of proportion by master controller according to the platform of SCHP Pu/frozen water machine, activate the quantity at SCHP Pu with the decision master controller, and send control signal (step S202), follow by frozen water machine automatic control system supply power to SCHP Pu (step S204), and activate the SCHP Pu in regular turn according to device numbering, when closing the SCHP Pu, then the SCHP Pu that will activate earlier preferentially stops (step S206).
Two logical control valves are after receiving the control signal that master controller sends, activation and speed (step S208) according to control signal control SCHP Pu, then the feedback of status with the running of SCHP Pu is transmitted back to master controller (step S210), activate the activation/closing control system of SCHP pumping system again, and automatic inspection activation/shutdown system state, pass check result back master controller (step S212).
Comprehensive the above, the frozen water machine automatic control system based on energy meter of the present invention has following advantage:
(1) the frozen water machine automatic control system based on energy meter of the present invention, according to the highest frozen water ton of refrigeration of setting in the actual frozen water ton of refrigeration of frozen water machine and the energy meter or minimum frozen water ton of refrigeration relatively after, the platform number of stress living of decision frozen water machine, and behind the frozen water board number that the frozen water board number that relatively stress live and reality activate, determine under-active frozen water board number or close the frozen water board number that has more.
(2) the frozen water machine automatic control system based on energy meter of the present invention according to the numerical value in the energy meter, makes system do the running of optimum efficiency.
(3) the frozen water machine automatic control system based on energy meter of the present invention, master controller includes several control modules, these control modules are acting each other, when having the control module fault of control, by frozen water machine automatic control system control automaticallyed switch to another control module.
Claims (13)
1. the frozen water machine automatic control system based on energy meter is with the frozen water ton of refrigeration in the energy meter, and as the control basis of a frozen water machine automatic control system, this frozen water machine automatic control system comprises:
One frozen water machine; And
One master controller, relatively an actual frozen water ton of refrigeration and this frozen water ton of refrigeration determine the platform number of stress living of this frozen water machine, and after relatively this frozen water machine stress be lived platform number and the actual activation of this frozen water machine platform number, produce the control signal whether this frozen water machine activates.
2. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that, more comprises a less important controller, receives this control signal, activate and close this frozen water machine one of them.
3. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that, this master controller formed by a plurality of control module and those control modules acting each other each other.
4. the frozen water machine automatic control system based on energy meter as claimed in claim 3 it is characterized in that, but those control modules is made up of program logic.
5. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that, this energy meter more comprises this frozen water machine of activation the highest required frozen water ton of refrigeration.
6. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that, this energy meter more comprises closes the required minimum frozen water ton of refrigeration of this frozen water machine.
7. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that, this energy meter comprises that more one activates time delay, and it confirms that the frozen water ton of refrigeration demand that increases is the noise of steady demand rather than this control signal.
8. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that this energy meter more comprises a turn-off delay time, and it confirms that the frozen water ton of refrigeration demand that reduces is the noise of steady demand rather than this control signal.
9. the frozen water machine automatic control system based on energy meter as claimed in claim 1 is characterized in that, can set this frozen water machine automatic start-stop time interval.
10. whether the frozen water machine automatic control system based on energy meter is characterized in that, decide a frozen water machine to activate according to an actual frozen water ton of refrigeration.
11. the frozen water machine automatic control system based on energy meter as claimed in claim 10 is characterized in that comprise an energy meter, this energy meter comprises:
One the highest frozen water ton of refrigeration, required frozen water ton of refrigeration when activating this frozen water machine; And
One minimum frozen water ton of refrigeration, required frozen water ton of refrigeration when closing this frozen water machine.
12. the frozen water machine automatic control system based on energy meter as claimed in claim 10 is characterized in that this energy meter more comprises:
One activates time delay, and it confirms that the frozen water ton of refrigeration demand that increases is the noise of steady demand rather than this control signal; And
One turn-off delay time, it confirms that the frozen water ton of refrigeration demand that reduces is the noise of steady demand rather than this control signal.
13. the frozen water machine automatic control system based on energy meter as claimed in claim 10 is characterized in that this energy meter more comprises:
One frozen water board number is the platform number of mounted this frozen water machine; And a frozen water load capacity, the maximum ice water load amount when activating for this frozen water machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146159 CN1270151C (en) | 2002-10-30 | 2002-10-30 | Energy meter based ice water machine automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146159 CN1270151C (en) | 2002-10-30 | 2002-10-30 | Energy meter based ice water machine automatic control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1493830A true CN1493830A (en) | 2004-05-05 |
| CN1270151C CN1270151C (en) | 2006-08-16 |
Family
ID=34232657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02146159 Expired - Fee Related CN1270151C (en) | 2002-10-30 | 2002-10-30 | Energy meter based ice water machine automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1270151C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571803A (en) * | 2017-03-07 | 2018-09-25 | 佛山市顺德区顺达电脑厂有限公司 | Ice water host computer control method |
-
2002
- 2002-10-30 CN CN 02146159 patent/CN1270151C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571803A (en) * | 2017-03-07 | 2018-09-25 | 佛山市顺德区顺达电脑厂有限公司 | Ice water host computer control method |
| CN108571803B (en) * | 2017-03-07 | 2020-06-30 | 佛山市顺德区顺达电脑厂有限公司 | Ice water main machine control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1270151C (en) | 2006-08-16 |
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Granted publication date: 20060816 Termination date: 20191030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |