CN106196515A - The energy efficiency controlling method of central air conditioner system and device - Google Patents
The energy efficiency controlling method of central air conditioner system and device Download PDFInfo
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- CN106196515A CN106196515A CN201610799128.8A CN201610799128A CN106196515A CN 106196515 A CN106196515 A CN 106196515A CN 201610799128 A CN201610799128 A CN 201610799128A CN 106196515 A CN106196515 A CN 106196515A
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Abstract
The invention discloses energy efficiency controlling method and the device of a kind of central air conditioner system, the energy efficiency controlling method of central air conditioner system includes: S1, gather the ambient parameter of indoor and outdoors of different periods, and described ambient parameter includes temperature and/or humidity；S2, the supply water temperature being asked for central air conditioner system by fitting formula and the matched curve of indoor ambient parameter；S3, combine the ambient parameter of indoor and outdoors instantly, adjust the supply water temperature of the most described central air conditioner system and the return water temperature of described central air conditioner system or supply backwater temperature difference according to described matched curve.The present invention combines the indoor and outdoor surroundings parameter of Various Seasonal, the matched curve of supply water temperature and indoor temperature and humidity is asked for by fitting formula, adjust the supply water temperature etc. of central air conditioner system, on the premise of both ensureing that system is comfortable, effectively reduce the operation energy consumption of whole central air conditioner system.
Description
Technical field
The present invention relates to a kind of Air-condition system control technical field, the efficiency particularly relating to a kind of central air conditioner system controls
Method and device.
Background technology
In central air conditioner system, general refrigeration unit Cold water-out temperature is manually set by the operator of operation maintenance
In a certain fixed value, and often during operation maintenance, operation personnel, in order to improve refrigeration unit Energy Efficiency Ratio, uses iterative method
Improve and set Cold water-out temperature, improve refrigeration unit evaporating temperature by the artificial setting Cold water-out temperature that improves, thus
Improve refrigeration host computer operational energy efficiency ratio, reduce energy consumption.But owing to heat and moisture in the building load whole year is change, Various Seasonal is different
Under outdoor environmental conditions, by improving refrigeration unit Cold water-out temperature, partial building region may be caused to reach when summer
Less than design indoor temperature and humidity, by design refrigeration unit Cold water-out temperature, again can be owing to providing too low in transition season
Cold water temperature, and cause the waste of operation energy consumption.
Efficiency based on load prediction conventional on existing market controls technology, for new building central air conditioner system without
Method accomplishes preferably to feed back, and in control program, air conditioning system is adjusted by basic employing empirical algorithms.It addition, in season
And the most preferably use on the feedback information of outdoor environment, particularly to zones of different Various Seasonal in the temperature of indoor and outdoor surroundings
, therefore there is some and the unmatched situation of actual motion, especially for the operation of air conditioning system in the application of the enthalpy difference of humidity
Efficiency is disadvantageous.
Summary of the invention
The technical problem to be solved in the present invention is, it is provided that one combines indoor and outdoor surroundings parameter adjustment central air conditioner system
Supply water temperature, reach energy efficiency controlling method and the device of the central air conditioner system of energy-conservation purpose.
The technical solution adopted for the present invention to solve the technical problems is: provide the efficiency of a kind of central air conditioner system to control
Method, comprises the following steps:
S1, gathering the ambient parameter of indoor and outdoors of different periods, described ambient parameter includes temperature and/or humidity；
S2, the supply water temperature being asked for central air conditioner system by fitting formula and the matched curve of indoor ambient parameter；
S3, combine the ambient parameter of indoor and outdoors instantly, adjust the most described central air-conditioning according to described matched curve
The supply water temperature of system and the return water temperature of described central air conditioner system or supply backwater temperature difference.
Preferably, it is higher than preset value in indoor ambient parameter less than the ambient parameter of outdoor ambient parameter and indoor
Time, reduce the supply water temperature of described central air conditioner system, so that the ambient parameter of described indoor is down to preset value, described central hollow
The supply backwater temperature difference of adjusting system keeps constant.
Preferably, it is less than preset value in indoor ambient parameter less than the ambient parameter of outdoor ambient parameter and indoor
Time, promote supply water temperature and the supply backwater temperature difference of described central air conditioner system, so that the ambient parameter of described indoor reaches default
Value.
Preferably, in step S3, high higher than the ambient parameter of outdoor ambient parameter and indoor in indoor ambient parameter
When preset value, reduce the supply water temperature of described central air conditioner system, so that the ambient parameter of described indoor is down to preset value, institute
The supply backwater temperature difference stating central air conditioner system keeps constant.
Preferably, in step S3, low higher than the ambient parameter of outdoor ambient parameter and indoor in indoor ambient parameter
When preset value, promote supply water temperature and the supply backwater temperature difference of described central air conditioner system, so that the ambient parameter of described indoor
Reach preset value.
Preferably, in step S3, the changes in flow rate of end and water pump by adjusting described central air conditioner system adjusts
The return water temperature of described central air conditioner system；
The running frequency of end and water pump by adjusting described central air conditioner system adjusts described central air conditioner system
Supply backwater temperature difference.
The present invention also provides for the efficiency of a kind of central air conditioner system and controls device, including:
Gathering the first collecting unit of Outdoor Air Parameters, described ambient parameter includes temperature and/or humidity；
Gathering the second collecting unit of indoor environment parameter, described ambient parameter includes temperature and/or humidity；And
The central air conditioner system control centre being connected with described first collecting unit and the second collecting unit communication；
Wherein, described central air conditioner system control centre includes:
The supply water temperature of central air conditioner system and the fortune of the matched curve of indoor ambient parameter is asked for by fitting formula
Calculate unit；And
In conjunction with the ambient parameter of indoor and outdoors instantly, adjust the confession of described central air conditioner system according to described matched curve
Coolant-temperature gage and the return water temperature of described central air conditioner system or the performance element of supply backwater temperature difference.
Preferably, described first collecting unit includes outdoor temperature sensor and/or outside humidity sensor, or includes
There is the Temperature Humidity Sensor of temperature and humidity acquisition function.
Preferably, described second collecting unit includes indoor temperature transmitter and/or indoor humidity sensor, or includes
There is the Temperature Humidity Sensor of temperature and humidity acquisition function.
Preferably, this efficiency control device also includes that transmitter, described first collecting unit and the second collecting unit are respectively
It is connected with described central air conditioner system control centre communication by described transmitter.
Beneficial effects of the present invention: combine the indoor and outdoor surroundings parameter of Various Seasonal, is asked for for water temperature by fitting formula
Degree and the matched curve of indoor temperature and humidity, adjust the supply water temperature etc. of central air conditioner system, in the premise both ensureing that system is comfortable
Under, effectively reduce the operation energy consumption of whole central air conditioner system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flow chart of the energy efficiency controlling method of the central air conditioner system of one embodiment of the invention；
Fig. 2 is the schematic diagram of the efficiency control device of the central air conditioner system of one embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood from the technical characteristic of the present invention, purpose and effect, now comparison accompanying drawing describes in detail
The detailed description of the invention of the present invention.
As it is shown in figure 1, the energy efficiency controlling method of the central air conditioner system of one embodiment of the invention, comprise the following steps:
S1, gather different periods (including period and the different periods in same season of Various Seasonal) indoor and outdoors
Ambient parameter, ambient parameter includes temperature and/or humidity；
S2, the supply water temperature being asked for central air conditioner system by fitting formula and the matched curve of indoor ambient parameter；
Wherein, fitting formula Y=F (etin, C), C=in formula (C1, C2 ... Cn) it is the supply water temperature of central air conditioner system,
For undetermined parameter, reflection quantity etinAnd the relation between Y, the most most preferably approaches or matching given data.etin:
Indoor environment parameter (temperature, humidity etc.).
Before this step S2, also include: combine the ambient parameter of indoor and outdoors and the service data of central air conditioner system
(including supply water temperature, return water temperature etc.), set up energy efficiency model: E ∝ Q* (etout∪etin), in the hope of fitting formula.Wherein,
E: system energy efficiency, is proportional to the indoor and outdoor surroundings parameter (temperature, humidity) of this system Various Seasonal；Q: Various Seasonal；etout: room
External environment parameter (temperature, humidity etc.)；etin: indoor environment parameter (temperature, humidity etc.)；∝: proportional relation；∪ represents union.
S3, the ambient parameter of combination indoor and outdoors instantly, adjust the water supply of central air conditioner system according to matched curve
Temperature, and the return water temperature of central air conditioner system or supply backwater temperature difference.
Wherein, the ambient parameter of the indoor and outdoors of different periods, matched curve can be asked for as historical data.
The supply water temperature of central air conditioner system and return water temperature are Cold water-out temperature and the return water temperature of refrigeration unit；
Supply backwater temperature difference is the temperature difference of supply water temperature and return water temperature.
In step s3, by the setting of the Cold water-out temperature of the refrigeration unit of central air conditioner system being reached adjustment confession
The purpose of coolant-temperature gage.The changes in flow rate adjusting end and water pump by adjusting central air conditioner system of return water temperature realizes；
The running frequency adjusting end and water pump by adjusting central air conditioner system of supply backwater temperature difference realizes；Water pump is water supply water
Pump and/or backwater water pump.When needing to promote supply backwater temperature difference, water pump operation frequency reduces, and flow reduces.
In step S3, in certain embodiments:
In indoor ambient parameter (temperature and humidity) less than outdoor ambient parameter (temperature and humidity) and the ring of indoor
When border parameter is higher than preset value, reduce the supply water temperature of central air conditioner system, so that the ambient parameter of indoor is down to preset value, in
The supply backwater temperature difference of centre air conditioning system keeps constant or diminishes；Keep supply backwater temperature difference constant by correspondence reduction central air-conditioning
The return water temperature of system realizes.Additionally, when indoor temperature humidity in preset value higher beyond preset value time, adjustable height
The dehumidifying effect of air conditioning terminal and/or reduce humidity by the air-supply arrangement air-supply that air conditioning terminal is subsidiary.
In indoor ambient parameter (temperature and humidity) less than outdoor ambient parameter (temperature and humidity) and the ring of indoor
When border parameter is less than preset value, promote the supply water temperature of central air conditioner system, so that the ambient parameter of indoor reaches preset value, in
The supply backwater temperature difference of centre air conditioning system improves.Wherein, in ambient parameter humidity promote also by subsidiary the adding of air conditioning terminal
Wet device humidification realizes.In indoor ambient parameter (temperature and humidity) higher than outdoor ambient parameter (temperature and humidity) and room
When interior ambient parameter is higher than preset value, reduce the supply water temperature of central air conditioner system, so that the ambient parameter of indoor is down to pre-
If value, the supply backwater temperature difference of central air conditioner system keeps constant or diminishes.Wherein, the reduction of indoor humidity can be by heightening sky
Adjust the dehumidifying effect of end and/or realized by the air-supply arrangement air-supply that air conditioning terminal is subsidiary.
In indoor ambient parameter (temperature and humidity) higher than outdoor ambient parameter (temperature and humidity) and the ring of indoor
When border parameter is less than preset value, promote supply water temperature and the supply backwater temperature difference of central air conditioner system, so that the ambient parameter of indoor
Reach preset value.Wherein, the humidifier humidifies also by air conditioning terminal is subsidiary that promotes of indoor humidity realizes.
As in figure 2 it is shown, the efficiency of the central air conditioner system of one embodiment of the invention controls device, including gathering outdoor environment
First collecting unit 10 of parameter, the second collecting unit 20 gathering indoor environment parameter and central air conditioner system control centre
30.Central air conditioner system control centre 30 is connected with the first collecting unit 10 and the second collecting unit 20 communication, to receive first
The ambient parameter data that collecting unit 10 and the second collecting unit 20 collect.Indoor ambient parameter and outdoor ambient parameter
May each comprise temperature and/or humidity.
Central air conditioner system control centre 30 includes arithmetic element 31 and the performance element 32 that communication connects.Arithmetic element 31
Receive from the first collecting unit 10 and ambient parameter data of the second collecting unit 20, ask for central air-conditioning by fitting formula
The supply water temperature of system and the matched curve of indoor ambient parameter；Performance element 32 combines instantly indoor ambient parameter and room
Outer ambient parameter, adjusts supply water temperature and the backwater temperature of central air conditioner system of central air conditioner system according to matched curve
Degree or supply backwater temperature difference.
Central air conditioner system control centre 30 (supplies water with the refrigeration unit 1 of central air conditioner system, air conditioning terminal and water pump
Water pump, backwater water pump) etc. communication connect, combining environmental parameter and matched curve, generate promote or decline temperature control refer to
Make and occur to refrigeration unit 1, air conditioning terminal or water pump etc..When needing to promote supply backwater temperature difference, water pump drops according to control instruction
Low running frequency, reduces flow.
The efficiency of this central air conditioner system controls device and also includes transmitter (not shown), the first collecting unit 10 and second
Collecting unit 20 is connected with central air conditioner system control centre 30 communication by transmitter respectively；First collecting unit 10 and second
The ambient parameter data that collecting unit 20 gathers is sent to central air conditioner system control centre 30 by transmitter.First gathers list
Unit 10 includes outdoor temperature sensor and/or outside humidity sensor, or includes the temperature with temperature and humidity acquisition function
Humidity sensor；Second collecting unit 20 includes indoor temperature transmitter and/or indoor humidity sensor, or includes having temperature
Degree and the Temperature Humidity Sensor of humidity collection function.
The energy-saving control method of the present invention can use this efficiency to control device and realize.
The efficiency being realized central air conditioner system by the present invention is controlled, and specific embodiment is as follows:
One, during summer cooling, if outdoor weather is relatively sticky weather, pass by being arranged on the outdoor temperature humidity of outdoor
Humiture is detected by sensor, sends the data detected to central air conditioner system control centre；Central air conditioner system control
The arithmetic element at center processed by the outdoor temperature of comparison different time sections, the ambient parameter i.e. temperature detecting indoor normal and
When humidity is higher, the refrigeration unit in central air conditioner system is assigned instruction, promote the Cold water-out temperature of refrigeration unit in advance
If temperature, in order to being dehumidified in indoor；For ensureing effect on moisture extraction, dehumidify also by air-supply arrangement air-supply.
If by be arranged on the Temperature Humidity Sensor of outdoor detect outdoor temperature higher time, and indoor temperature and humidity is necessarily
Within being kept at comfort level (preset value) region in time, even below during comfort level scope, during central air conditioner system controls
Refrigeration unit is assigned the instruction promoting supply water temperature by the heart, and changes the frequency of water supply pump, improves the confession of central air conditioner system
Backwater temperature difference.
Two, during transition season cooling, owing to outdoor humiture is the most relatively low, the load in indoor environment is all with the shape of sensible heat
Formula exists, and the most only needs corresponding cold to reduce the temperature of indoor, humidity all within comfort standard (in preset value), because of
This, by being arranged on the collection to the ambient parameter of indoor and outdoor of the outdoor Temperature Humidity Sensor, central air conditioner system control centre
The refrigeration unit of central air conditioner system is assigned the instruction that supply water temperature reduces, when supply water temperature reaches and indoor temperature and humidity matching
During curve, just meet indoor workload demand, also improve the operational energy efficiency of whole central air conditioner system.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. the energy efficiency controlling method of a central air conditioner system, it is characterised in that comprise the following steps:
S1, gathering the ambient parameter of indoor and outdoors of different periods, described ambient parameter includes temperature and/or humidity；
S2, the supply water temperature being asked for central air conditioner system by fitting formula and the matched curve of indoor ambient parameter；
S3, combine the ambient parameter of indoor and outdoors instantly, adjust the most described central air conditioner system according to described matched curve
Supply water temperature and the return water temperature of described central air conditioner system or supply backwater temperature difference.
The energy efficiency controlling method of central air conditioner system the most according to claim 1, it is characterised in that in step S3, in room
When interior ambient parameter is higher than preset value less than the ambient parameter of outdoor ambient parameter and indoor, reduce described central air-conditioning
The supply water temperature of system, so that the ambient parameter of described indoor is down to preset value, the supply backwater temperature difference of described central air conditioner system
Keep constant or diminish.
The energy efficiency controlling method of central air conditioner system the most according to claim 1, it is characterised in that in step S3, in room
When interior ambient parameter is less than preset value less than the ambient parameter of outdoor ambient parameter and indoor, promote described central air-conditioning
The supply water temperature of system and supply backwater temperature difference, so that the ambient parameter of described indoor reaches preset value.
The energy efficiency controlling method of central air conditioner system the most according to claim 1, it is characterised in that in step S3, in room
When interior ambient parameter is higher than preset value higher than the ambient parameter of outdoor ambient parameter and indoor, reduce described central air-conditioning
The supply water temperature of system, so that the ambient parameter of described indoor is down to preset value, the supply backwater temperature difference of described central air conditioner system
Keep constant or diminish.
The energy efficiency controlling method of central air conditioner system the most according to claim 1, it is characterised in that in step S3, in room
When interior ambient parameter is less than preset value higher than the ambient parameter of outdoor ambient parameter and indoor, promote described central air-conditioning
The supply water temperature of system and supply backwater temperature difference, so that the ambient parameter of described indoor reaches preset value.
6. according to the energy efficiency controlling method of the central air conditioner system described in any one of claim 1-5, it is characterised in that step S3
In, the changes in flow rate of end and water pump by adjusting described central air conditioner system adjusts the backwater of described central air conditioner system
Temperature；
The running frequency of end and water pump by adjusting described central air conditioner system adjusts the confession of described central air conditioner system
Backwater temperature difference.
7. the efficiency of a central air conditioner system controls device, it is characterised in that including:
Gathering the first collecting unit of Outdoor Air Parameters, described ambient parameter includes temperature and/or humidity；
Gathering the second collecting unit of indoor environment parameter, described ambient parameter includes temperature and/or humidity；And
The central air conditioner system control centre being connected with described first collecting unit and the second collecting unit communication；
Wherein, described central air conditioner system control centre includes:
The supply water temperature of central air conditioner system and the computing list of the matched curve of indoor ambient parameter is asked for by fitting formula
Unit；And
In conjunction with the ambient parameter of indoor and outdoors instantly, adjust the confession water temperature of described central air conditioner system according to described matched curve
Degree and the return water temperature of described central air conditioner system or the performance element of supply backwater temperature difference.
The efficiency of central air conditioner system the most according to claim 7 controls device, it is characterised in that described first gathers list
Unit includes outdoor temperature sensor and/or outside humidity sensor, or includes having the warm and humid of temperature and humidity acquisition function
Degree sensor.
The efficiency of central air conditioner system the most according to claim 7 controls device, it is characterised in that described second gathers list
Unit includes indoor temperature transmitter and/or indoor humidity sensor, or includes having the warm and humid of temperature and humidity acquisition function
Degree sensor.
10. control device according to the efficiency of the central air conditioner system described in any one of claim 7-9, it is characterised in that this energy
Effect controls device and also includes transmitter, and described first collecting unit and the second collecting unit pass through described transmitter respectively with described
The communication of central air conditioner system control centre connects.
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| CN107883525A (en) * | 2017-10-25 | 2018-04-06 | 西安合隆能源科技有限公司 | A kind of central air-conditioning intelligence energy-saving operation control system and method |
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