CN109695936A - Central air-conditioning energy intelligent control system - Google Patents
Central air-conditioning energy intelligent control system Download PDFInfo
- Publication number
- CN109695936A CN109695936A CN201811525582.XA CN201811525582A CN109695936A CN 109695936 A CN109695936 A CN 109695936A CN 201811525582 A CN201811525582 A CN 201811525582A CN 109695936 A CN109695936 A CN 109695936A
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- CN
- China
- Prior art keywords
- control system
- refrigeration unit
- plc control
- air
- central air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Central air-conditioning energy intelligent control system, including PLC control system, live man-machine interface, several sensors, intelligent electric meter and I/O switch, the scene man-machine interface, the intelligent electric meter, several sensors and the I/O switching signal are conducted to the PLC control system, and the PLC control system control refrigeration unit 1, refrigeration unit 2 are until refrigeration unit n.This system has intelligence: 1, it can be realized one-key type computer opening/closing service, manually control without cumbersome；2, when there are identical refrigeration or heat demand in workshop and Office Area, air conditioner cold-heat source is maximally utilized；3, when water-cooling screw rod machine/heat pump unit/tail end air conditioner case runing time has reached maintenance reminder time, program carries out push relevant information, safeguards in time；4, main equipment and stand-by equipment alternate run reduce mechanical wear, extend service life of equipment；5, being sufficiently introduced into outdoor fresh air in transition season is that production district carries out cooling supply, saves the energy.
Description
Technical field
The invention belongs to central air conditioning system fields, and in particular to central air-conditioning energy intelligent control system.
Background technique
The central air conditioner system of the prior art is generally empty by water-cooling screw rod unit, freezing/cooling water pump, cooling tower, end
It adjusts case to constitute production district central air conditioner system, Office Area central air-conditioning is constituted by Air-Cooled Heat Pump Unit, centrifugal water pump, fan coil
System, air-conditioning system press peak load configuration, and existing production district/office sound zone system has a large amount of cooling capacity more than needed, causes the energy
Waste.The central air conditioner system of the prior art has the disadvantage in that (1) is not intelligent: freezing/cooling water pump, water-cooling screw rod unit,
Cooling tower independent operating, switching on and shutting down are cumbersome, if sequence error also results in hostdown；(2) it power consumption: is adopted in Office Area and production district
When warm or cooling supply there are same requirements, the energy, waste of energy cannot be maximally utilized；In excessive season, workshop still needs to cooling supply, this
Situation tail end air conditioner case is unable to fully cool down using outdoor fresh air to workshop, saves electric energy.(3) existing without maintenance information
Control method can not record the actual run time of refrigeration unit, if refrigeration unit is without timing function when dispatching from the factory, after
Just can not know in phase use process every refrigeration unit run on earth how long, operation maintenance personnel is difficult to judge that the unit is
It is no to need maintenance, it be easy to cause the waste maintained too early and maintenance too late to cause equipment damage；(4) lack equipment rotation
System, existing control method can not allow freezing/cooling water pump, the electromechanics main equipment such as water-cooling screw rod unit, air-cooled heat pump with it is spare
Equipment carries out successively rotation, reduces equipment attrition situation, extends service life of equipment；(5) not safe enough, existing control method,
When water-cooling screw rod host, freezing/cooling water pump, Air-Cooled Heat Pump Unit, cooling tower causes the whole series after a certain equipment breaks down
Central air-conditioning disorderly closedown, stand-by equipment can not independently be put into time, influence plant process demand.
Summary of the invention
In view of the deficienciess of the prior art, the present invention provides central air-conditioning energy intelligent control system.
The present invention is achieved by the following technical solutions:
Central air-conditioning energy intelligent control system, including PLC control system, live man-machine interface, several sensors, intelligent electric meter
It is switched with I/O, the scene man-machine interface, the intelligent electric meter, several sensors and the I/O switching signal are conducted to described
PLC control system, the PLC control system control refrigeration unit 1, refrigeration unit 2 are until refrigeration unit n, PLC control system
Signal transduction of uniting is to the live man-machine interface and DTU/ industry router, the DTU/ industry router signal transduction to cloud
Server, the cloud server signal transduction to client/short message.
Several sensors include air velocity transducer and temperature sensor.
Compared with prior art, the beneficial effects of the present invention are: this system has intelligence, in central air conditioner system so
Equipment mutually links, and does not need cumbersome operation, start & shutdown through one key.
1. energy conservation: (1) when workshop and production district have cooling supply or heating demands simultaneously, only opening one group of cold source and cold water
Distributing system saves electric energy.(2) when excessive season or winter workshop there are cooling needs, outdoor fresh air is made full use of to carry out
Cooling supply reduces the water-cooling screw rod unit opening time, saves electric energy.
2. easy to maintain: system automatically records the actual run time of refrigeration unit, and operation maintenance personnel is according to the fortune of the unit
The row time can determine whether to need maintenance, prevent the waste maintained too early and maintenance too late cause equipment damage.
3. information is convenient: system automatically records central air-conditioning temperature data, energy data, and water pressure data passes through curve graph
Table mode is shown, changes the mode of manual metering；Data SMS can be also sent daily by way of short message daily paper to administrator,
With mating and client software can real time remote check presence states, reduce administrator's workload, prevent human error.
4. safe and reliable: when system discovery equipment fault and workshop temperature exception, issuing alarm signal, and pass through short message side
Formula, the mode of client-side information push notify administrator, report failure at the first time, prevent because fault discovery not in time due to cause
Loss.
Detailed description of the invention
Fig. 1 is structure chart of the invention.
In attached drawing: 1.PLC control system；2. live man-machine interface；3. intelligent electric meter；4.I/O switch；5. refrigeration unit 1；
6. refrigeration unit 2；7. refrigeration unit n；8.DTU/ industry router；9. cloud server；10. air velocity transducer；11. temperature passes
Sensor.
Specific embodiment
Central air-conditioning energy intelligent control system, including PLC control system 1, live man-machine interface 2, several sensors, intelligence electricity
Table 3, I/O switch 4, live man-machine interface 2, intelligent electric meter 3, several sensors and I/O switch 4 are by signal transduction to the PLC
Control system 1, PLC control system 1 control refrigeration unit 15, refrigeration unit 26 until refrigeration unit n 7, PLC control system 1
By signal transduction to the live man-machine interface 2 and DTU/ industry router 8,8 signal transduction of DTU/ industry router to cloud
Server 9,9 signal transduction of cloud server to client/short message.
Further, several sensors include air velocity transducer 10 and temperature sensor 11.
This system is used as control core using PLC control system 1, passes through Air Temperature outside outdoor temperature humidity sensor collection room
Humidity acquires air return humiture by air return temperature humidity sensor, then reads O&M parameter inside related unit, is carried out by PLC
Logic control: 1, refrigeration system switching on and shutting down: by freezing/cooling water pump, cooling tower, ice water host computer, heat pump, tail end air conditioner case is included in
In intelligent control system, when realizing booting, corresponding freezing/cooling water valve breakdown action, while/cooling water pump opening is freezed,
Blower movement is freezed, after relevant device is working properly, ice water host computer puts into operation, and unlatching finishes, when central air conditioner system is closed
When closing, water-cooled Screw chiller is first closed, after host all closes 5min.Freezing/cooling motor-driven valve, freezing/cooling water pump
It is simultaneously stopped operation, is all closed to equipment, central air conditioner system is closed.2, cold source is maximally utilized: when Office Area and production
When there are identical cooling supply or heat demand in area, automatically switch corresponding pipeline valve, summer is production district using a kind of heat source and does
Public area carries out cooling supply, and winter carries out heat supply using air-cooled heat pump and saves electric energy.3, central air conditioner system obstacle crossing function: when unit is pressed
After sequence starting, there is relevant device failure, automatic shield faulty equipment switches to stand-by equipment operation, guarantees central air-conditioning system
System operates normally, and fault message is pushed to equipment management personnel.4, transition season fresh air cooling is made full use of: when workshop exists
When excessive season or winter there are cooling needs, outdoor fresh air is made full use of to carry out cooling supply to workshop；When interior is in cooling supply mould
Formula: 1, when return air enthalpy≤fresh air enthalpy, new air-valve is closed, and 2, when air-supply enthalpy < fresh air enthalpy≤return air enthalpy, air returning valve
Minimum scale movement, new air-valve opens to maximum, and 3, blow enthalpy, return air and fresh air proportion mixed running as fresh air enthalpy <, i.e.,
When return air temperature > set temperature, the preferential new air-valve that acts is opened greatly, then turns down air returning valve to minimum scale, when return air temperature≤
Supply air temperature preferentially opens big air returning valve, new air-valve is being closed, until minimum scale.(under this state, close the electronic ratio of chilled water
Example regulating valve can cooling supply by outdoor fresh air), 4, under heating mode, new air-valve is closed.And by network, by central hollow
Adjusting system real time data is information-based, using mating client software can real time inspection field central air-conditioning state, also can be by short
Believe receiving real-time data.
In conclusion only presently preferred embodiments of the present invention, is not used to limit the scope of implementation of the present invention, it is all according to
Equivalent changes and modifications carried out by shape described in scope of the invention as claimed, construction, feature and spirit should be included in this
In the scope of the claims of invention.
Claims (2)
1. central air-conditioning energy intelligent control system, it is characterised in that: including PLC control system (1), live man-machine interface (2), several
Sensor, intelligent electric meter (3) and I/O switch (4), the scene man-machine interface (2), the intelligent electric meter (3), several sensors
(4) signal transduction is switched to the PLC control system (1) with the I/O, and the PLC control system (1) controls refrigeration unit 1
(5), refrigeration unit 2 (6) is until refrigeration unit n (7), PLC control system (1) signal transduction to the live man-machine interface
(2) and DTU/ industry router (8), DTU/ industry router (8) signal transduction to cloud server (9), the cloud
Server (9) signal transduction is to client/short message.
2. central air-conditioning energy intelligent control system according to claim 1, it is characterised in that: several sensors include that wind speed passes
Sensor (10) and temperature sensor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525582.XA CN109695936A (en) | 2018-12-13 | 2018-12-13 | Central air-conditioning energy intelligent control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525582.XA CN109695936A (en) | 2018-12-13 | 2018-12-13 | Central air-conditioning energy intelligent control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109695936A true CN109695936A (en) | 2019-04-30 |
Family
ID=66231624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811525582.XA Pending CN109695936A (en) | 2018-12-13 | 2018-12-13 | Central air-conditioning energy intelligent control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109695936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260547A (en) * | 2019-06-13 | 2019-09-20 | 科希曼电器有限公司 | Temperature protection system for cascade type heat pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132883A (en) * | 2004-11-09 | 2006-05-25 | Kyudenko Corp | Air-conditioning automatic control system |
| CN104296329A (en) * | 2013-07-18 | 2015-01-21 | 李明 | High-precision standard constant-temperature-and-humidity laboratory control system |
| CN107940672A (en) * | 2017-07-24 | 2018-04-20 | 江苏永钢集团有限公司 | A kind of central air-conditioning alarm method based on PLC |
| CN108019884A (en) * | 2017-11-15 | 2018-05-11 | 盐城天顺机械科技有限公司 | A kind of air-conditioner control system |
| CN207945901U (en) * | 2018-03-14 | 2018-10-09 | 扬州华泰节能科技有限公司 | A kind of cold store energy saving intelligence control system |
-
2018
- 2018-12-13 CN CN201811525582.XA patent/CN109695936A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132883A (en) * | 2004-11-09 | 2006-05-25 | Kyudenko Corp | Air-conditioning automatic control system |
| CN104296329A (en) * | 2013-07-18 | 2015-01-21 | 李明 | High-precision standard constant-temperature-and-humidity laboratory control system |
| CN107940672A (en) * | 2017-07-24 | 2018-04-20 | 江苏永钢集团有限公司 | A kind of central air-conditioning alarm method based on PLC |
| CN108019884A (en) * | 2017-11-15 | 2018-05-11 | 盐城天顺机械科技有限公司 | A kind of air-conditioner control system |
| CN207945901U (en) * | 2018-03-14 | 2018-10-09 | 扬州华泰节能科技有限公司 | A kind of cold store energy saving intelligence control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260547A (en) * | 2019-06-13 | 2019-09-20 | 科希曼电器有限公司 | Temperature protection system for cascade type heat pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190430 |