CN108518819A - A kind of controlling system of central air conditioner based on data acquisition - Google Patents
A kind of controlling system of central air conditioner based on data acquisition Download PDFInfo
- Publication number
- CN108518819A CN108518819A CN201810547005.4A CN201810547005A CN108518819A CN 108518819 A CN108518819 A CN 108518819A CN 201810547005 A CN201810547005 A CN 201810547005A CN 108518819 A CN108518819 A CN 108518819A
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- CN
- China
- Prior art keywords
- central air
- air conditioner
- data acquisition
- controlling system
- plc controller
- 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
-
- 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
- F24F11/70—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
- F24F11/85—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 variable-flow pumps
-
- 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
- F24F11/88—Electrical aspects, e.g. circuits
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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)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of controlling system of central air conditioner based on data acquisition, it is related to central air-conditioning energy control field, the parameter acquisition equipment being connect including PLC controller, with PLC controller and multiple frequency converters, the parameter acquisition equipment includes the flowmeter for environment temperature and the water temperature temperature detector detected, the pressure detector and the detection of return water total flow that are detected for siphon pressure, and the multiple frequency converter is also connect with water pump group respectively.Solve the problems, such as that cooling water pump is mismatched with air conditioner load with chilled water pump flow and resulted in waste of resources.
Description
Technical field
The present invention relates to central air-conditioning energy control field more particularly to a kind of central air-conditioning energies based on data acquisition
Control system.
Background technology
Energy demand is growing, today's society of energy growing tension, power-saving technology is increasingly by various circles of society
Attention.Universal with modern high-rise building and intelligent building, central air-conditioning is widely used, but its high energy consumption
Also become a big problem, the research of power-saving technology has been subjected to widely paying close attention to.According to national standards, central air conditioner system
Maximum load capability is designed according to maximum temperature, the maximum working environment of load, and actually system is seldom at this
It works under a little maximum conditions.The time of central air conditioning equipment 97% fluctuates operation below 70% load, so actual load is total
It cannot reach at full capacity, especially in the case of host machine part load, such case causes a large amount of energy waste.Research
System energy conservation control for central air-conditioning strategy, the good control system of design performance, to which people's production, life and work can be met
The requirement of work, but can achieve the purpose that it is energy saving, have very positive meaning.
In the prior art, central air-conditioning is mainly made of refrigeration machine, cooling water recirculation system and freezing water circulation system etc.,
When central air-conditioning designs, to ensure to meet the needs of users compared with Gao Shineng in temperature, usually designs and deposit according to peak load
In 15% or so surplus, therefore usually in use, central air-conditioning can not reach running at full capacity, and cooling water pump group and
Thus chilled water pump group leads to cooling water pump group and chilled water pump group according to design maximum flow set firm discharge operating mode
Flow and central air-conditioning load mismatch, cause the great wasting of resources.
Invention content
It is an object of the invention to：A kind of controlling system of central air conditioner acquired based on data is provided, cooling is solved
The problem of water pump is mismatched with air conditioner load with chilled water pump flow and is resulted in waste of resources.
The technical solution adopted by the present invention is as follows：
A kind of controlling system of central air conditioner based on data acquisition, including PLC controller, connect with PLC controller
Parameter acquisition equipment and multiple frequency converters, the parameter acquisition equipment include the temperature inspection detected for environment temperature and water temperature
The flowmeter of device, the pressure detector for siphon pressure detection and the detection of return water total flow is surveyed, the multiple frequency converter is also
It is connect respectively with water pump group.
Further, it is provided between the PLC controller and frequency converter for frequency converter start-up and shut-down control module.
Further, the start-up and shut-down control module includes that 1 SR is switched, 2 intermediate relay KA and 2 point driving switch
The moved end of SB, SR switch and long-range/stopping of PLC controller/signal end connection on the spot, a non-moving end of SR switches and PLC
The terminals of controller connect, the first relay KA is in parallel with the first point driving switch SB and a common end switched with SR it is another
A non-moving end connection, another common end are connect with one end of the second point driving switch SB, and one end of the second relay KA connects respectively
The other end for meeting the second point driving switch SB switchs the corresponding wiring of wiring end signal that non-moving end connects with SR in PLC controller
End, the other end of the second relay KA are connect with frequency converter start stop signal end.
Further, the water pump group respectively includes feed pump, auxiliary pump and reserve pump.
Further, the PLC controller is also connected with man-machine interface.
Further, the temperature detector is respectively arranged at the exit of chilled water pipe and cooling water pipe, chilled water pipe
In the external environment where the entrance of cooling water pipe, central air-conditioning.
Further, the pressure detector is set between chilled water pipe and cooling water pipe water outlet and water inlet.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, in the present invention, by PLC controller realize it is long-range/control on the spot, realize between central air conditioner system equipment
Coordinated signals pass through the real-time transform situation (such as environment temperature, water temperature, siphon pressure and return water total amount) to end load
The feedwater flow that water pump is adjusted by adjusting transformer reaches to make central air-conditioning run under optimum Working
Energy saving purpose.
2, it in the present invention, by the way that multiple transformers are arranged, is made of independently of each other multiple transformers and water pump and wind turbine
Execution module quickly can switch over and repair, ensure the stabilization of central air conditioner system in main execution module failure
Property.
3, it in the present invention, is switched by SR, the frequency converter starting or stopping control circuit that intermediate relay KA and point driving switch SB are constituted
Module can be stablized, and control in real time frequency converter start and stop, can prevent frequency converter from being influenced by fault-signal.
Description of the drawings
Fig. 1 is PLC controller wiring schematic diagram of the present invention；
Fig. 2 is present system control schematic diagram.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, a kind of controlling system of central air conditioner based on data acquisition, including PLC controller, with PLC
The parameter acquisition equipment of controller connection and multiple frequency converters, the parameter acquisition equipment include being examined for environment temperature and water temperature
The flowmeter of the temperature detector of survey, the pressure detector for siphon pressure detection and the detection of return water total flow is described more
A frequency converter is also connect with water pump group respectively.
The PLC controller model selects SMART200, the frequency converter model to select ACS510.
Further, it is provided between the PLC controller and frequency converter for frequency converter start-up and shut-down control module.
As shown in Fig. 2, further, the start-up and shut-down control module includes that 1 SR is switched, 2 intermediate relay KA and 2
The moved end of point driving switch SB, SR switch and long-range/stopping of PLC controller/signal end connection on the spot, one of SR switches are motionless
End is connect with the terminals of PLC controller, and the first relay KA is in parallel with the first point driving switch SB and a common end is opened with SR
Another non-moving end connection closed, another common end are connect with one end of the second point driving switch SB, and the one of the second relay KA
End is separately connected the other end of the second point driving switch SB and SR in PLC controller switchs the wiring end signal that non-moving end connects and corresponds to
Terminals, the other end of the second relay KA connect with frequency converter start stop signal end.
Further, the water pump group respectively includes feed pump, auxiliary pump and reserve pump.
Further, the PLC controller is also connected with man-machine interface.
Further, the temperature detector is respectively arranged at the exit of chilled water pipe and cooling water pipe, chilled water pipe
In the external environment where the entrance of cooling water pipe, central air-conditioning.
Further, the pressure detector is set between chilled water pipe and cooling water pipe water outlet and water inlet.
In the present solution, being detected to external environment by the temperature detector for being set to central air-conditioning external environment, lead to
It crosses the temperature detector being set on condenser pipe and cryovial to check water temperature, and by hydraulic pressure to water pipe and returns
Water total flow is detected, and detection data is transferred to PLC controller, and water supply of the frequency converter to water pump is controlled by controller
Amount is adjusted, and to make central air-conditioning run under optimum Working, achievees the purpose that energy saving.
This programme includes multiple frequency converters being connect with PLC controller, the frequency converter respectively with feed pump, auxiliary pump
And reserve pump is attached, and mutually independent execution module is formed by multiple transformers and water pump, in main execution mould failure
When, quickly it can switch over and repair, ensure the stability of central air conditioner system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of controlling system of central air conditioner based on data acquisition, it is characterised in that：It is controlled including PLC controller, with PLC
The parameter acquisition equipment of device connection processed and multiple frequency converters, the parameter acquisition equipment include being detected for environment temperature and water temperature
Temperature detector, for siphon pressure detection pressure detector and return water total flow detection flowmeter, it is the multiple
Frequency converter is also connect with water pump group respectively.
2. a kind of controlling system of central air conditioner based on data acquisition according to claim 1, it is characterised in that：It is described
It is provided between PLC controller and frequency converter for frequency converter start-up and shut-down control module.
3. a kind of controlling system of central air conditioner based on data acquisition according to claim 2, it is characterised in that：It is described
Start-up and shut-down control module includes that 1 SR is switched, and the moved end of 2 intermediate relay KA and 2 point driving switch SB, SR switches is controlled with PLC
Long-range/stopping of device processed/signal end connection on the spot, a non-moving end of SR switches and the terminals of PLC controller connect, and first
Relay KA is in parallel with the first point driving switch SB and a common end is connect with another non-moving end that SR is switched, another is public
End is connect with one end of the second point driving switch SB, and one end of the second relay KA is separately connected the other end of the second point driving switch SB
Switch the corresponding terminals of wiring end signal that connects of non-moving end with SR in PLC controller, the other end of the second relay KA and
Frequency converter start stop signal end connects.
4. a kind of controlling system of central air conditioner based on data acquisition according to claim 1, it is characterised in that：It is described
Water pump group respectively includes feed pump, auxiliary pump and reserve pump.
5. a kind of controlling system of central air conditioner based on data acquisition according to claim 1, it is characterised in that：It is described
PLC controller is also connected with man-machine interface.
6. a kind of controlling system of central air conditioner based on data acquisition according to claim 1, it is characterised in that：It is described
Temperature detector be respectively arranged at the exit of chilled water pipe and cooling water pipe, chilled water pipe and cooling water pipe entrance, in
In external environment where the air-conditioning of centre.
7. a kind of controlling system of central air conditioner based on data acquisition according to claim 1, it is characterised in that：It is described
Pressure detector is set between chilled water pipe and cooling water pipe water outlet and water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547005.4A CN108518819A (en) | 2018-05-31 | 2018-05-31 | A kind of controlling system of central air conditioner based on data acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547005.4A CN108518819A (en) | 2018-05-31 | 2018-05-31 | A kind of controlling system of central air conditioner based on data acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518819A true CN108518819A (en) | 2018-09-11 |
Family
ID=63426930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810547005.4A Withdrawn CN108518819A (en) | 2018-05-31 | 2018-05-31 | A kind of controlling system of central air conditioner based on data acquisition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518819A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442705A (en) * | 2018-10-23 | 2019-03-08 | 成都创未电子科技有限公司 | A kind of wisdom miniature energy-saving central air conditioning equipment |
| CN110895016A (en) * | 2019-11-27 | 2020-03-20 | 南京亚派软件技术有限公司 | Fuzzy self-adaptive based energy-saving group control method for central air-conditioning system |
-
2018
- 2018-05-31 CN CN201810547005.4A patent/CN108518819A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442705A (en) * | 2018-10-23 | 2019-03-08 | 成都创未电子科技有限公司 | A kind of wisdom miniature energy-saving central air conditioning equipment |
| CN110895016A (en) * | 2019-11-27 | 2020-03-20 | 南京亚派软件技术有限公司 | Fuzzy self-adaptive based energy-saving group control method for central air-conditioning system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180911 |