CN201787695U - Central air conditioning variable-frequency energy-saving control device - Google Patents
Central air conditioning variable-frequency energy-saving control device Download PDFInfo
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- CN201787695U CN201787695U CN2010202217104U CN201020221710U CN201787695U CN 201787695 U CN201787695 U CN 201787695U CN 2010202217104 U CN2010202217104 U CN 2010202217104U CN 201020221710 U CN201020221710 U CN 201020221710U CN 201787695 U CN201787695 U CN 201787695U
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Abstract
The utility model discloses a central air conditioning variable-frequency energy-saving control device, which comprises a control cabinet, a sensor and a touch liquid crystal display screen. The sensor is arranged at a field end, a data acquisition module, an intelligent fuzzy controller, a frequency converter, a relay and a variable-frequency/power-frequency switching device are arranged inside the control cabinet, the touch liquid crystal display screen is mounted on the control cabinet, the sensor is connected with the data acquisition module, an output end of the data acquisition module is connected with an input end of the intelligent fuzzy controller, an output end of the intelligent fuzzy controller is connected with the frequency converter, the touch liquid crystal display screen and a storage are connected with the intelligent fuzzy controller by an industrial personal controller, the industrial personal computer is sequentially connected with the intelligent fuzzy controller, the frequency converter and a variable-frequency control circuit by an automatic main control node of the variable-frequency/power-frequency switching device to form an automatic variable-frequency control system, and the industrial personal computer is electrically connected with the relay and a power-frequency control circuit by a manual main control node of the variable-frequency/power-frequency switching device to form a power-frequency control system. The central air conditioning variable-frequency energy-saving control device has the advantages of fine energy saving effect, safety, reliability and flexible operation.
Description
Technical field
The utility model relates to a kind of energy-saving and frequency-variable control device, relates in particular to a kind of central air-conditioning energy-saving and frequency-variable control device.
Background technology
At present, the energy-saving and frequency-variable functions of the equipments on the market are more single: form a simple control loop with hardware such as frequency converter, relay, PLC or single-chip microcomputers, control accuracy is not high, and energy-saving effect is limited.And, in whole production process, the data relevant with production technology, such as: the parameter that line voltage, frequency converter output current, output voltage, plant capacity, flow, pressure, liquid level etc. are relevant, can only monitor with various indicator lamps with the voltmeter that is provided with on the VFC cabinet panel, ammeter, frequency meter etc., poor reliability, the continuous data that can not accurately reflect whole production, because of needs manual intervention operation, cause operation and maintenance personnel working strength bigger, also have the hidden danger that causes the system failure because of maloperation.
The utility model content
The technical problems to be solved in the utility model is: the central air-conditioning energy-saving and frequency-variable control device that a kind of safe and reliable, flexible operation and good energy-conserving effect are provided.
To achieve these goals, the technical solution adopted in the utility model is: a kind of central air-conditioning energy-saving and frequency-variable control device, comprise switch board and be located at the on-the-spot sensor of holding, be provided with data acquisition module, intelligent fuzzy controller, frequency converter, relay, memory, industrial computer, frequency conversion/power frequency switching device shifter in the switch board, also comprise the touch LCD display screen on the cabinet door that is loaded on switch board; Described sensor is connected with data acquisition module by shielded cable, the data acquisition module output is connected with the intelligent fuzzy controller input by the RS-485 bus, the output of intelligent fuzzy controller connects frequency converter, and touch LCD display screen, memory are connected with the communication interface of intelligent fuzzy controller by industrial computer; Wherein, industrial computer links to each other with the communication interface of intelligent fuzzy controller by the automatic master control node of frequency conversion/power frequency switching device shifter, and intelligent fuzzy controller connects to form the automatic frequency-conversion control system successively with frequency converter and frequency conversion control circuit again; Be connected with relay by the manual master control node of industrial computer by frequency conversion/power frequency switching device shifter, relay is electrically connected with the power frequency control circuit again and forms the power frequency control system.
As preferably, described sensor is humidity sensor, pressure sensor, temperature sensor and sensor of liquid speed.
As preferably, described memory is a hard disk.
As preferably, the top of described switch board is provided with exhaust outlet, and the bottom, side of switch board is provided with air intake grid.
The beneficial effect that the utility model brings is: system gathers parameters such as indoor temperature, humidity, system conditions automatically, analyze, judge through intelligent fuzzy controller, under various loads, be in optimum Working with the assurance system, thereby realize that complex optimum is energy-conservation; When the frequency-converting control device fault, switch to power frequency, do not influence the normal operation of system; Adopt the touch LCD display screen, simplified and manipulated, brief, operation interface easily is provided, the duty clear display is understood, can realize continuously, not have the data record of interrupting according to the needs of producing; Data storage function can be preserved data for a long time; And be provided with aeration structure, can in time discharge the heat that parts such as frequency converter in the cabinet send, further improve energy-saving effect.
Description of drawings
Fig. 1 is the operation principle flow chart of the utility model embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1, a kind of central air-conditioning energy-saving and frequency-variable control device, comprise switch board and be located at the on-the-spot sensor of holding 1, be provided with data acquisition module 2 in the switch board, intelligent fuzzy controller 3, frequency converter 4, relay 5, memory 7, industrial computer 8, frequency conversion/power frequency switching device shifter 9, also comprise the touch LCD display screen 6 on the cabinet door that is loaded on switch board, described sensor 1 is connected with data acquisition module 2 by shielded cable, data acquisition module 2 outputs are connected with intelligent fuzzy controller 3 inputs by the RS-485 bus, the output of intelligent fuzzy controller 3 connects frequency converter 4, touch LCD display screen 6, memory 7 is connected with the communication interface of intelligent fuzzy controller 3 by industrial computer 8.
Wherein, industrial computer 8 links to each other with the communication interface of intelligent fuzzy controller 3 by the automatic master control node of frequency conversion/power frequency switching device shifter 9, and intelligent fuzzy controller 3 connects to form the automatic frequency-conversion control system successively with frequency converter 4 and frequency conversion control circuit again; Be connected with relay 5 by the manual master control node of industrial computer 8 by frequency conversion/power frequency switching device shifter 9, relay 5 is electrically connected with the power frequency control circuit again and forms the power frequency control system.Frequency conversion control circuit is connected outside controlled motor respectively with the power frequency control circuit.
As preferably, described sensor 1 is humidity sensor, pressure sensor, temperature sensor and sensor of liquid speed.Data acquisition module 2 adopts digit chip to replace traditional RTD sampled analog circuit, comprise humidity, temperature, pressure, fluid velocity acquisition module, and be connected with intelligent fuzzy controller 3 by RS-485, communication distance can reach 1000m, and precision is not subjected to wire influence, the precision height, field wiring is simple.After above-mentioned automatic frequency-conversion control system receives the given enabling signal of operating personnel, system gathers environment, air-conditioning system parameter automatically, and carry out initial analysis through intelligent fuzzy controller 3, compare calculating with current operational factor and make the operation deviation data, to move deviation then sends back to, when the next cycle of operation began, current operational factor was revised again according to operation deviation and new systematic parameter of gathering automatically by system, thereby reaches optimum control.
Industrial computer 8 can adopt design of Configuration Software easily, realizes the 4 networking control breaks of system's frequency converter its motor conversion and supervision, and passes through the startup of touch LCD display screen 6 control frequency conversion/power frequency control circuits.During work, connect power supply, when needs intelligent frequency-conversion energy-saving run, at first selected group of motors, select the converting operation mode by touch LCD display screen 6 again, frequency conversion/power frequency switching device shifter 9 is located at auto state, and the automatic master control node of frequency conversion/power frequency switching device shifter 9 and intelligent fuzzy controller 3 are connected, the work of control motor frequency conversion.When the needs power frequency operation, select the power frequency operation mode by touch LCD display screen 6, frequency conversion/power frequency switching device shifter 9 is located at manual state, and manual master control node and relay are connected, controlled motor power frequency work.
Can be connected by communication interface between intelligent fuzzy controller 3 and the frequency converter 4.Also be provided with display lamp and control button on the cabinet door of switch board, comprise power supply indicator, motor run indicator, power frequency indicator lamp, frequency conversion indicator lamp etc., SR, the selected button of motor, electric motor starting/stop button etc.
Described memory 7 is a hard disk.The top of described switch board is provided with exhaust outlet, and the bottom, side of switch board is provided with air intake grid, so that in time discharge the heat that frequency converter 4 parts such as grade send in the cabinet, further improves energy-saving effect.
Claims (4)
1. central air-conditioning energy-saving and frequency-variable control device, it is characterized in that: comprise switch board and be located at the on-the-spot sensor of holding, be provided with data acquisition module, intelligent fuzzy controller, frequency converter, relay, memory, industrial computer, frequency conversion/power frequency switching device shifter in the switch board, also comprise the touch LCD display screen on the cabinet door that is loaded on switch board;
Described sensor is connected with data acquisition module by shielded cable, the data acquisition module output is connected with the intelligent fuzzy controller input by the RS-485 bus, the output of intelligent fuzzy controller connects frequency converter, and touch LCD display screen, memory are connected with the communication interface of intelligent fuzzy controller by industrial computer;
Wherein, industrial computer links to each other with the communication interface of intelligent fuzzy controller by the automatic master control node of frequency conversion/power frequency switching device shifter, and intelligent fuzzy controller connects to form the automatic frequency-conversion control system successively with frequency converter and frequency conversion control circuit again;
Be connected with relay by the manual master control node of industrial computer by frequency conversion/power frequency switching device shifter, relay is electrically connected with the power frequency control circuit again and forms the power frequency control system.
2. central air-conditioning energy-saving and frequency-variable control device according to claim 1 is characterized in that: described sensor is humidity sensor, pressure sensor, temperature sensor and sensor of liquid speed.
3. central air-conditioning energy-saving and frequency-variable control device according to claim 1 is characterized in that: described memory is a hard disk.
4. according to each described central air-conditioning energy-saving and frequency-variable control device of claim 1 to 3, it is characterized in that: the top of described switch board is provided with exhaust outlet, and the bottom, side of switch board is provided with air intake grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202217104U CN201787695U (en) | 2010-06-10 | 2010-06-10 | Central air conditioning variable-frequency energy-saving control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202217104U CN201787695U (en) | 2010-06-10 | 2010-06-10 | Central air conditioning variable-frequency energy-saving control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787695U true CN201787695U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202217104U Expired - Fee Related CN201787695U (en) | 2010-06-10 | 2010-06-10 | Central air conditioning variable-frequency energy-saving control device |
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| Country | Link |
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| CN (1) | CN201787695U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914031A (en) * | 2012-10-17 | 2013-02-06 | 常州苏控自动化设备有限公司 | Air conditioner with circulation energy-saving device |
| CN103574834A (en) * | 2012-07-30 | 2014-02-12 | 同方泰德国际科技(北京)有限公司 | Energy-saving control cabinet of air conditioning unit |
| CN103607162A (en) * | 2013-12-11 | 2014-02-26 | 济南诺辉节能技术开发有限公司 | On-line switching device of frequency conversion and power frequency |
-
2010
- 2010-06-10 CN CN2010202217104U patent/CN201787695U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574834A (en) * | 2012-07-30 | 2014-02-12 | 同方泰德国际科技(北京)有限公司 | Energy-saving control cabinet of air conditioning unit |
| CN103574834B (en) * | 2012-07-30 | 2016-03-23 | 同方泰德国际科技(北京)有限公司 | A kind of air-conditioner set energy-saving control cabinet |
| CN102914031A (en) * | 2012-10-17 | 2013-02-06 | 常州苏控自动化设备有限公司 | Air conditioner with circulation energy-saving device |
| CN103607162A (en) * | 2013-12-11 | 2014-02-26 | 济南诺辉节能技术开发有限公司 | On-line switching device of frequency conversion and power frequency |
| CN103607162B (en) * | 2013-12-11 | 2016-04-13 | 济南诺辉节能技术开发有限公司 | The online switching device shifter of frequency conversion power frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20140610 |