CN102878639A - Automatic control method based on water-cooled air conditioner internal unit - Google Patents
Automatic control method based on water-cooled air conditioner internal unit Download PDFInfo
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- CN102878639A CN102878639A CN2012103389991A CN201210338999A CN102878639A CN 102878639 A CN102878639 A CN 102878639A CN 2012103389991 A CN2012103389991 A CN 2012103389991A CN 201210338999 A CN201210338999 A CN 201210338999A CN 102878639 A CN102878639 A CN 102878639A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000007710 freezing Methods 0.000 claims abstract description 6
- 230000008014 freezing Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000004378 air conditioning Methods 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses an automatic control method based on a water-cooled air conditioner internal unit. The automatic control method comprises the steps as follows: (1) initializing a control system; (2) setting initial values of an automatic loading system, wherein the initial values include an initial temperature value, an initial internal unit fan speed value and an initial solenoid valve opening value; (3) collecting the air outlet temperature in real time and detecting the internal unit fan speed and the solenoid valve opening degree; (4) judging if the air outlet temperature is equal to the initial temperature value, if so, going to the step (5), if not, adjusting the internal unit fan speed and the solenoid valve opening degree for an internal unit freezing water gap according to difference values, determining adjustment ranges, and adjusting until the air outlet temperature is equal to the initial temperature value; and (5) adjusting according to the step (4), drawing a curve chart and displaying through a display device. According to the automatic control method, the energy consumption for conditioning an equipment environment under the same heat load change in a water-cooled air conditioner unit is reduced, the proportion of energy consumption of air conditioner equipment in total energy consumption of a machine room is reduced, the PUE (Power Usage Efficiency) value of the machine room is reduced, and the energy-saving effect is improved.
Description
Technical field
The present invention relates to the computer control field, be specifically related to a kind of based on machine autocontrol method in the Water cooled air conditioners.
Background technology
Improving constantly of the current entire society level of informatization, increasing for the demand of data center; The popularization and application of simultaneous blade server, virtual, cloud computing and intelligent control technology, the density of information technoloy equipment and business all constantly increase in limited space, and the thing followed is the gradually increasing of power load, the improving constantly of heat flow density.Concentrated low-temperature receiver as data center's (machine room) air-conditioning, chilled water system with separately independently the direct-expansion-type air-conditioning system compare, refrigerating efficiency is higher, equipment is more still less concentrated, move more stable, fault rate and maintenance cost are lower, and the chilled water air-conditioning system is generally used in numerous large-scale data centers.
Provide refrigerating capacity take water chiller as concentrated low-temperature receiver as air conditioner in machine room at present, it has obtained extraordinary energy-saving effect.But according to the industry data, the machine room refrigeration system accounts for about 40% of machine room total energy consumption.Therefore, strengthen innovation research and application based on water chiller, can further solve the high heat density problem of New Generation of IDC, winding houses reliability and reduce the machine room total energy consumption.
Water cooled air conditioners refrigeration control system of the prior art, when the control of refrigeration, flow/heat control methods of using current comparative maturity more, (being the surplus determining method) of relatively judging terminal air handling system energy requirement amount by the metering central air-conditioning freezing water import/export temperature difference and the standard temperature difference, regulate refrigeration host computer energy-producing how many times, the best Energy Efficiency Ratio of taking into account system operation when simultaneously it pursues equilibrium of supply and demand.Flow/heat control method is relatively to judge terminal air handling system energy requirement amount by metering the Water cooled air conditioners indoor set chilled water import/export temperature difference and the standard temperature difference.Terminal air is the first medium of equipment thermic load conduction, by the evaporimeter heat exchange, heat is conducted to the refrigerant of air-conditioning system---chilled water, chilled water is the second transmitting medium, on ageing, there is hysteresis quality so detect to regulate first medium according to the temperature difference of heat conduction second medium, causes this method can't reach best energy conservation and consumption reduction effects.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind ofly based on machine autocontrol method in the Water cooled air conditioners, reach temperature gap in the mode of maximum energy-saving in the shortest time and dwindle purpose, keep equipment operating environment stable.
Provided by the invention a kind of based on machine autocontrol method in the Water cooled air conditioners, its improvements are, described method comprises the steps:
(1) control system initializes;
(2) automatic loading default initial value comprises temperature initial value, indoor set blower fan rotating speed initial value and magnetic valve aperture initial value;
(3) Real-time Collection air outlet temperature and detect the indoor set rotation speed of fan and the magnetic valve aperture;
(4) judge whether described air outlet temperature equals the temperature initial value, then to enter step (5), otherwise regulate indoor set rotation speed of fan and the freezing mouth of a river of indoor set magnetic valve aperture according to difference, and determine the scope of adjusting, until described air outlet temperature equals the temperature initial value;
(5) regulate according to step (4), be depicted as curve map and show by display.
Wherein, step (3) air outlet temperature is by being arranged on the temperature-sensitive bag Real-time Collection of indoor set air-conditioner air outlet position, and calculates indoor set rotation speed of fan and magnetic valve aperture by the detection signal that blower fan and magnetic valve provide.
Wherein, step (4) indoor set blower fan rotating speed has 16 grades.
Wherein, when the difference between air outlet of indoor set temperature and the temperature initial value greater than setting value during I, rotation speed of fan is directly proportional with the temperature difference; When the difference of air outlet of indoor set temperature and temperature initial value during less than described setting value I, rotation speed of fan and temperature difference absolute value are inversely proportional to.
Wherein, when rotation speed of fan is directly proportional with the temperature difference, described control system output rotation speed of fan signal increases rotation speed of fan;
When rotation speed of fan and temperature difference absolute value are inversely proportional to, described control system output rotation speed of fan signal reduces rotation speed of fan.
Wherein, the adjusting of the described indoor set chilled water inlet of step (4) magnetic valve aperture is to judge that the absolute value of the difference of temperature initial value and air outlet temperature whether greater than setting value II, is then to blur adjusting, regulates otherwise carry out PID; Display shows indoor set chilled water inlet magnetic valve opening value in real time.
Wherein, described setting value I is 0 ℃.
Wherein, described setting value II is 2 ℃.
Compared with the prior art, beneficial effect of the present invention is:
The present invention has reduced the Water cooled air conditioners response speed that the facility environment thermic load changes, and reaches further energy-conservation effect, reduces range of temperature, makes information technoloy equipment running environment more stable.
The present invention has reduced the Water cooled air conditioners unit is regulated facility environment under identical thermic load changes energy consumption, reduces air-conditioning equipment energy consumption shared ratio in the machine room total energy consumption, reduces machine room PUE value, the raising energy-saving effect.
The present invention with the temperature of Water cooled air conditioners indoor set air outlet and the difference between the default temperature as the real-time required energy consumption of water cooling air conditioning system, and as the adjusting foundation of water cooling air conditioning system energy supply, the Water cooled air conditioners unit is according to the Energy Efficiency Ratio operation of the best, interior mode with maximum energy-saving of shortest time reaches temperature gap and dwindles purpose, keeps equipment operating environment stable.
Description of drawings
Fig. 1 is control method flow chart provided by the invention.
Fig. 2 is control system electromagnetic valve for adjusting aperture provided by the invention (adjusting cold medium flux) flow chart.
Fig. 3 is Water cooled air conditioners indoor set kind of refrigeration cycle schematic diagram provided by the invention.
Fig. 4 is air conditioner refrigerating circulation top view provided by the invention
Fig. 5 is that control system provided by the invention is by regulating chilled-water flow control refrigerating capacity schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
The present embodiment article is a kind of based on machine automatic control system in the Water cooled air conditioners, with the temperature of Water cooled air conditioners indoor set air outlet and the difference between the default temperature as the real-time required energy consumption of water cooling air conditioning system, and as the adjusting foundation of water cooling air conditioning system energy supply, the Water cooled air conditioners unit is according to the Energy Efficiency Ratio operation of the best, interior mode with maximum energy-saving of shortest time reaches temperature gap and dwindles purpose, keeps equipment operating environment stable.
Concrete, what the present embodiment provided is a kind of based on machine autocontrol method in the Water cooled air conditioners, and its flow chart specifically comprises the steps: as shown in Figure 1
(1) control system initializes; Described control system mainly comprises: monitoring main equipment, temperature-sensitive bag, blower fan, magnetic valve, display screen.Temperature-sensitive bag, blower fan, magnetic valve and display screen respectively with monitoring on the main equipment corresponding interface be connected.
(2) automatic loading default Water cooled air conditioners initial value comprises temperature initial value, indoor set blower fan rotating speed initial value and magnetic valve aperture initial value;
(3) Real-time Collection Water cooled air conditioners air outlet temperature and detect the indoor set rotation speed of fan and the magnetic valve aperture;
(4) judge whether described air outlet temperature equals the temperature initial value, then to enter step (5), otherwise regulate indoor set rotation speed of fan and the freezing mouth of a river of indoor set magnetic valve aperture according to difference, and determine the scope of adjusting, until described air outlet temperature equals the temperature initial value;
(5) regulate according to step (4), be depicted as curve map and show by display.
Its Water cooled air conditioners indoor set kind of refrigeration cycle schematic diagram as shown in Figure 3 and Figure 4.This level of platoon leader rack is the hermetic type rack, Water cooled air conditioners indoor set Qianmen is air outlet, the back door is return air inlet, the Air blowing that the fan of air outlet will freeze, air runs into the Qianmen resistance, horizontal direction flows to the left and right, the information technoloy equipments such as server are with this air intake, take away the heat that comes out, the place converges at the back door, gets back to indoor apparatus of air conditioner back door return air inlet, by the heat exchanger of indoor apparatus of air conditioner heat is taken away again, with air cooling, the Air blowing after the fan of air outlet will freeze again so just forms kind of refrigeration cycle one time.
Step (4) indoor set blower fan rotating speed has 16 grades, and 0 grade to 15 grades, when control system started, blower fan was operated in the grade (such as 8 grades) that initializes acquiescence.When control system detected difference between air outlet of indoor set temperature and the default temperature greater than 0 ℃, the rotation speed of fan grade improved, increase air outlet wind speed; When the difference of air outlet of indoor set temperature and temperature initial value during less than 0 ℃, the rotation speed of fan grade reduces, and reduces the air outlet wind speed; Wind speed scale specifically variation meeting calculates according to the difference between air outlet of indoor set temperature and the default temperature according to system control program, and display shows rotation speed of fan (being air quantity) in real time simultaneously.
The regulating step of the freezing mouth of a river of described indoor set magnetic valve aperture as shown in Figure 2, control system is by regulating chilled-water flow control refrigerating capacity schematic diagram as shown in Figure 5.Whether judge the absolute value of difference of temperature initial value and air outlet temperature during adjusting greater than 2 ℃, belong to fuzzy adjustable range greater than 2 ℃, belong to the PID adjustable range less than 2 ℃.The fuzzy adjusting by the concrete temperature difference of contrast, resulting empirical value is regulated the magnetic valve aperture by experiment; PID regulates the variation that then contrasts nearly twice temperature difference, regulate (differential adjusting) by P adjusting (ratio adjusting), I adjusting (integral adjustment), D, in the add-on step 2 open degree feedback being carried out in the detection of magnetic valve aperture regulates, this a series of step make the air outlet of indoor set temperature quick, stable approach the default temperature, make the facility environment that thermic load changes to occur and again tend towards stability.
Refresh temperature curve and show item by item the current rotation speed of fan of indoor set (being air quantity) and magnetic valve opening value at LCDs, made things convenient for operating personnel's understanding supervisory control system running state.
The Water cooled air conditioners of the present embodiment is a kind of of air conditioner in machine room, and its refrigerant is chilled water.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. one kind based on machine autocontrol method in the Water cooled air conditioners, it is characterized in that, described method comprises the steps:
(1) control system initializes;
(2) automatic loading default initial value comprises temperature initial value, indoor set blower fan rotating speed initial value and magnetic valve aperture initial value;
(3) Real-time Collection air outlet temperature and detect the indoor set rotation speed of fan and the magnetic valve aperture;
(4) judge whether described air outlet temperature equals the temperature initial value, then to enter step (5), otherwise regulate indoor set rotation speed of fan and the freezing mouth of a river of indoor set magnetic valve aperture according to difference, and determine the scope of adjusting, until described air outlet temperature equals the temperature initial value;
(5) regulate according to step (4), be depicted as curve map and show by display.
2. autocontrol method as claimed in claim 1, it is characterized in that, step (3) air outlet temperature is by being arranged on the temperature-sensitive bag Real-time Collection of indoor set air-conditioner air outlet position, and calculates indoor set rotation speed of fan and magnetic valve aperture by the detection signal that blower fan and magnetic valve provide.
3. autocontrol method as claimed in claim 1 is characterized in that, step (4) indoor set blower fan rotating speed has 16 grades.
4. autocontrol method as claimed in claim 1 is characterized in that, when the difference between air outlet of indoor set temperature and the temperature initial value greater than setting value during I, rotation speed of fan is directly proportional with the temperature difference; When the difference of air outlet of indoor set temperature and temperature initial value during less than described setting value I, rotation speed of fan and temperature difference absolute value are inversely proportional to.
5. autocontrol method as claimed in claim 4 is characterized in that, when rotation speed of fan is directly proportional with the temperature difference, described control system output rotation speed of fan signal increases rotation speed of fan;
When rotation speed of fan and temperature difference absolute value are inversely proportional to, described control system output rotation speed of fan signal reduces rotation speed of fan.
6. autocontrol method as claimed in claim 1, it is characterized in that, the adjusting of the described indoor set chilled water inlet of step (4) magnetic valve aperture is to judge that the absolute value of the difference of temperature initial value and air outlet temperature whether greater than setting value II, is then to blur adjusting, regulates otherwise carry out PID; Display shows indoor set chilled water inlet magnetic valve opening value in real time.
7. autocontrol method as claimed in claim 3 is characterized in that, described setting value I is 0 ℃.
8. autocontrol method as claimed in claim 5 is characterized in that, described setting value II is 2 ℃.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307684A (en) * | 2013-07-04 | 2013-09-18 | 四川依米康环境科技股份有限公司 | Data center air conditioning wall |
| CN104515207A (en) * | 2013-09-27 | 2015-04-15 | 广东美的制冷设备有限公司 | Multi-cross-flow air conditioner and control method thereof |
| CN104571187A (en) * | 2015-01-05 | 2015-04-29 | 浪潮电子信息产业股份有限公司 | Design method based on dynamic temperature regulation and control of water-cooling cabinet |
| CN105605748A (en) * | 2016-03-15 | 2016-05-25 | 广州大学 | Air-conditioning system air-water joint adjustment control method and system |
| CN104101055B (en) * | 2014-07-22 | 2016-11-16 | 浪潮电子信息产业股份有限公司 | A method for controlling a water-cooled air conditioner |
| CN104315683B (en) * | 2014-11-10 | 2017-05-10 | 浪潮电子信息产业股份有限公司 | Fuzzy PID (proportion integration differentiation) -based water-cooled air conditioner regulation and control method |
| CN107421762A (en) * | 2017-07-31 | 2017-12-01 | 特灵空调系统(中国)有限公司 | Diagnosis method for heat radiation system and device |
| CN108444065A (en) * | 2017-02-14 | 2018-08-24 | 维谛技术有限公司 | A kind of refrigeration control system of air-conditioner set, method, apparatus and air-conditioner set |
| CN108662735A (en) * | 2018-05-29 | 2018-10-16 | 广州大学 | A kind of end equipment of central air conditioner system optimal control for energy saving system and method |
| CN111413115A (en) * | 2019-01-08 | 2020-07-14 | 陈主福 | Intelligent measurement and verification method and system for the efficiency of refrigerating and air-conditioning mainframe |
| CN114135994A (en) * | 2021-11-15 | 2022-03-04 | 国网湖北省电力有限公司电力科学研究院 | A central air-conditioning demand response method and system for simultaneously adjusting indoor temperature and humidity |
| CN115076965A (en) * | 2021-03-10 | 2022-09-20 | 中国电信股份有限公司 | Energy-saving control method, control device and control system for communication machine room |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103307684B (en) * | 2013-07-04 | 2015-12-02 | 四川依米康环境科技股份有限公司 | Data center's air-conditioning wall |
| CN103307684A (en) * | 2013-07-04 | 2013-09-18 | 四川依米康环境科技股份有限公司 | Data center air conditioning wall |
| CN104515207A (en) * | 2013-09-27 | 2015-04-15 | 广东美的制冷设备有限公司 | Multi-cross-flow air conditioner and control method thereof |
| CN104515207B (en) * | 2013-09-27 | 2017-06-16 | 广东美的制冷设备有限公司 | Many through-flow air-conditioners and its control method |
| CN104101055B (en) * | 2014-07-22 | 2016-11-16 | 浪潮电子信息产业股份有限公司 | A method for controlling a water-cooled air conditioner |
| CN104315683B (en) * | 2014-11-10 | 2017-05-10 | 浪潮电子信息产业股份有限公司 | Fuzzy PID (proportion integration differentiation) -based water-cooled air conditioner regulation and control method |
| CN104571187A (en) * | 2015-01-05 | 2015-04-29 | 浪潮电子信息产业股份有限公司 | Design method based on dynamic temperature regulation and control of water-cooling cabinet |
| CN105605748B (en) * | 2016-03-15 | 2019-08-09 | 广州大学 | Air-water joint adjustment control method and system for air conditioning system |
| CN105605748A (en) * | 2016-03-15 | 2016-05-25 | 广州大学 | Air-conditioning system air-water joint adjustment control method and system |
| CN108444065A (en) * | 2017-02-14 | 2018-08-24 | 维谛技术有限公司 | A kind of refrigeration control system of air-conditioner set, method, apparatus and air-conditioner set |
| CN108444065B (en) * | 2017-02-14 | 2020-11-20 | 维谛技术有限公司 | Refrigeration control system, method and device of air conditioning unit and air conditioning unit |
| CN107421762A (en) * | 2017-07-31 | 2017-12-01 | 特灵空调系统(中国)有限公司 | Diagnosis method for heat radiation system and device |
| CN108662735B (en) * | 2018-05-29 | 2020-09-11 | 广州大学 | A central air-conditioning system terminal equipment energy-saving optimization control system and method |
| CN108662735A (en) * | 2018-05-29 | 2018-10-16 | 广州大学 | A kind of end equipment of central air conditioner system optimal control for energy saving system and method |
| CN111413115A (en) * | 2019-01-08 | 2020-07-14 | 陈主福 | Intelligent measurement and verification method and system for the efficiency of refrigerating and air-conditioning mainframe |
| CN115076965A (en) * | 2021-03-10 | 2022-09-20 | 中国电信股份有限公司 | Energy-saving control method, control device and control system for communication machine room |
| CN114135994A (en) * | 2021-11-15 | 2022-03-04 | 国网湖北省电力有限公司电力科学研究院 | A central air-conditioning demand response method and system for simultaneously adjusting indoor temperature and humidity |
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Application publication date: 20130116 |
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| RJ01 | Rejection of invention patent application after publication |