CN103322653A - Central air-conditioner energy-saving automatic control system and method - Google Patents
Central air-conditioner energy-saving automatic control system and method Download PDFInfo
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- CN103322653A CN103322653A CN2013102895505A CN201310289550A CN103322653A CN 103322653 A CN103322653 A CN 103322653A CN 2013102895505 A CN2013102895505 A CN 2013102895505A CN 201310289550 A CN201310289550 A CN 201310289550A CN 103322653 A CN103322653 A CN 103322653A
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Abstract
The invention relates to a central air-conditioner energy-saving automatic control system and method. The central air-conditioner energy-saving automatic control system comprises a signal acquisition unit, pressure sensors, a first signal converter, a second signal converter, a protocol converter, a charging host machine, an automatic control host machine and a flow regulation unit, wherein the signal acquisition unit collects temperature signals and flow signals of a chilled water system and transmits the temperature signals and the flow signals to the charging host machine through a charging system communication line, and the pressure sensors collect pressure signals of a water inlet pipeline and a water outlet pipeline of the chilled water system, packages the pressures signals into signals according with protocols of the charging system communication line through the protocol converter, and transmits the signals to the charging host machine. The automatic control host machine receives the temperature digital signals, the flow digital signals and the pressure digital signals of the charging host machine through an Ethernet network, sends regulation commands to the flow regulation unit, and controls the flow of the chilled water system. By means of the central air-conditioner energy-saving automatic control system and method, the flow of the chilled water system is controlled according to changes of actual load of users, and air-conditioner energy consumption and control cost can be reduced greatly.
Description
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Technical field
The present invention relates to a kind of control system and method thereof, particularly a kind of central air-conditioning energy robot control system(RCS) and method.
Background technology
During the concentrated energy source station energy supply of central air-conditioning, in most cases building, a client place distribution disperses, and from the energy source station machine room away from, therefore be difficult to determine index circuit, for guaranteeing user's normal energy supply demand, energy source station generally operates under the conservative state, therefore can have larger energy waste.
The collection of central air-conditioning energy robot control system(RCS), monitoring and control appliance generally only are installed in the energy source station scope, can only judge by experience the operating condition of client Lou Dong.If the operating condition that can obtain client Lou Dong just can provide to the energy-saving run of robot control system(RCS) the data of quantification, greatly improve the operational efficiency of energy source station and reach larger energy-saving effect.From the technical standpoint analysis, at client Lou Dong required sensing equipment and the robot control system(RCS) of data back energy source station is not difficult, ownership problem and the high cost of Major Difficulties or relevant party are installed.
The client who considers existing building all is equipped with gauge table, and is furnished with corresponding remote meter reading computer, and that can obtain at any time user Lou Dong enters the data such as coolant-temperature gage, return water temperature, cold, heat, instantaneous delivery, integrated flux, instantaneous power.For addressing the above problem, can be read by the robot control system(RCS) main frame continuous data of the computer of checking meter by Ethernet interface, so just can minimum cost share the charge system data, instruct the robot control system(RCS) energy-saving run.
But, because the actual acquired data of gauge table only has Inlet and outlet water temperature and flow, the pressure data that lacks the intuitive judgment index circuit, if pressure sensor is integrated into charge system, be transferred to again robot control system(RCS) by charging host machine, need then to consider that there are compatibility issue in the host-host protocol of pressure sensor and the host-host protocol of charge system, need accordingly to carry out protocol conversion, satisfy the requirement of charge system host-host protocol, thereby with data back automatic control main frame, as reference adjust operation strategy, satisfying under user's the energy supply demand condition, obtain to greatest extent preferably energy-saving effect.
Summary of the invention
Technical problem to be solved by this invention provides a kind of central air-conditioning energy robot control system(RCS) and control method, solves existing automatic control technology and is difficult to determine that user's actual load changes, the air-conditioning power consumption is serious, the high problem of controlling cost.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of central air-conditioning energy robot control system(RCS) comprises signal gathering unit, first signal converter, charging host machine, automatic control main frame and flow regulating unit:
Temperature signal and flow signal that described signal gathering unit is used for the collection chilled water system are transferred to described first signal converter;
Described first signal converter is used for temperature analog signal and the flow analog signals that receives is converted to data signal and is transferred to described charging host machine by the charge system communication line;
Described robot control system(RCS) also comprises pressure sensor, secondary signal converter and protocol converter, described pressure sensor is separately positioned on inlet pipeline and the water return pipeline of chilled water system, be used for to gather that chilled water system is advanced, the pressure signal of water return pipeline and be transferred to described secondary signal converter;
Described secondary signal converter is used for converting the pressure simulation signal that receives to data signal, and is transferred to protocol converter;
Described protocol converter is used for reading the pressure on the number signal, and is that the signal that meets charge system communication line agreement is transferred to charging host machine with described pressure on the number signal assemble;
Described temperature digital signal, traffic figure signal, pressure on the number signal that described charging host machine is used for collecting are transferred to the automatic control main frame by Ethernet;
Described automatic control main frame is used for receiving described temperature digital signal, traffic figure signal and pressure on the number signal, and sends regulating command to flow regulating unit according to operation result;
Described flow regulating unit is used for receiving described regulating command, and the flow of control chilled water system.
Further, described signal gathering unit comprises temperature sensor and flowmeter, described temperature sensor is arranged on inlet pipeline and the water return pipeline of chilled water system, is used for gathering the temperature signal of chilled water system confession, water return pipeline and being transferred to described first signal converter; Described flowmeter is arranged on the inlet pipeline of chilled water system, is used for gathering the flow signal of chilled water system and being transferred to the first signal converter.
Further, described flow regulating unit comprises Programmable Logic Controller, frequency converter and chilled water pump, and described Programmable Logic Controller be used for to receive the regulating command of automatic control main frame and the running frequency by the described chilled water pump of described Frequency Converter Control.
Further, a kind of central air-conditioning energy automatic control method comprises the steps:
Step 2, described first signal converter is converted to temperature analog signal and the flow analog signals that receives data signal and is transferred to described charging host machine by the charge system communication line;
Step 3, described pressure sensor gather that chilled water system is advanced, the pressure simulation signal of water return pipeline and be transferred to described secondary signal converter and convert the pressure on the number signal to;
Step 4, the pressure on the number signal in the described protocol converter receiving step three, and be the pressure signal that meets the charge system communications protocol with described pressure on the number signal assemble, the communication line by charge system is transferred to described charging host machine;
Further, described step 4 is further comprising the steps of: described protocol converter is by built-in pressure sensor communication protocol, the pressure on the number signal that receives is carried out assembly coding by charge system communication line host-host protocol, and be transferred to described charging host machine by the communication line of charge system.
The invention has the beneficial effects as follows: the present invention has changed prior art because the building is located the operating condition data and can't be transferred to Control Room by pressure sensor and protocol converter are set, central air-conditioning can only operate in the present situation under the conservative state, under the prerequisite that does not increase the communication line cost, realize collection and the transmission of teledata, the energy has effectively been saved in final reasonable operation by the control energy source station.
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Description of drawings
Fig. 1 is control principle drawing of the present invention;
Fig. 2 is flow chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used for explaining the present invention, is not be used to limiting scope of the present invention.
As shown in Figure 1, the central air-conditioning energy robot control system(RCS) of the present embodiment comprises signal gathering unit 1, first signal converter 2, charging host machine 3, automatic control main frame 4 and flow regulating unit 5:
Described signal gathering unit 1 comprises temperature sensor 6 and flowmeter 7, described temperature sensor 6 is arranged on inlet pipeline and the water return pipeline of chilled water system, will gather the temperature signal of chilled water system confession, water return pipeline and be transferred to described first signal converter 2; Described flowmeter 7 is arranged on the inlet pipeline of chilled water system, gathers the flow signal of chilled water system and is transferred to first signal converter 2.
Described first signal converter 2 is converted to temperature analog signal and the flow analog signals that receives data signal and is transferred to described charging host machine 3 by the charge system communication line;
The central air-conditioning energy robot control system(RCS) of the present embodiment also comprises pressure sensor 8, secondary signal converter 9 and protocol converter 10, described pressure sensor 8 is separately positioned on inlet pipeline and the water return pipeline of chilled water system, be used for to gather that chilled water system is advanced, the pressure signal of water return pipeline and be transferred to described secondary signal converter 9; Described secondary signal converter 9 converts the pressure simulation signal that receives to data signal, and is transferred to protocol converter 10;
In the present embodiment, temperature sensor adopts PT1000, after temperature sensor collects the resistance simulation signal, draws corresponding temperature analog signal by the gauge table calculating of establishing in it, and is transferred to the first signal converter; Flowmeter collects the current signal of 4～20mA, draw corresponding flow analog signals by interior gauge table calculating of establishing, and being transferred to the first signal converter, the data such as some other integrated flux, instantaneous power, cold and heat are all calculated according to temperature and data on flows.The first signal converter is encoded to string of binary characters by the communication protocol of charge system with temperature signal, the flow signal that receives, by the RS-485 interface, through the serial ports of cable transmission to charging host machine, serial ports changes into string of binary characters with data signal again and is identified by charging host machine.
In the present embodiment, the variation of pressure cell testing environment pressure in the pressure sensor, different pressures produces the different signals of telecommunication, described pressure sensor is converted to corresponding pressure on the number signal with the electric signal transmission that collects to the secondary signal converter, be transferred to protocol converter through the RS-485 interface again, carry out the encapsulation of data signal.
Described protocol converter 10 reads the pressure on the number signal, and is that the signal that meets charge system communication line agreement is transferred to charging host machine 3 with described pressure on the number signal assemble.Select protocol converter, be based on described pressure sensor and the gauge table corresponding with the charge system communication line is not a producer, the host-host protocol that adopts generally can be not identical yet.In the Practical Project, sensor and gauge table all are the self-defining serial communication protocols of producer, belong to nonstandard protocol.Host-host protocol can be made by oneself arbitrarily in theory, and the consideration for compatibility, autgmentability and reliability still has some standards to follow.The general protocol form is starting character, address, order, parameter, verification, end mark.But specific to contents such as starting character, order, parameter, verifications, different manufacturers has certain difference certainly.The described protocol converter of the present embodiment is by built-in pressure sensor communication protocol, the pressure on the number signal that receives is carried out assembly coding by the protocol format of charge system communication line host-host protocol, and be transferred to described charging host machine 3 by the communication line of charge system.
Described temperature digital signal, traffic figure signal, pressure on the number signal that described charging host machine 3 will collect are transferred to automatic control main frame 4 by Ethernet; Described automatic control main frame 4 receives described temperature digital signal, traffic figure signal and pressure on the number signal, and sends regulating command to flow regulating unit 5 according to operation result; The flow regulating unit 5 of the present embodiment comprises Programmable Logic Controller 11, frequency converter 12 and chilled water pump 13, and described Programmable Logic Controller 11 receives the regulating command of automatic control main frame 4 and controls the running frequency of described chilled water pump 13 by described frequency converter 12.
The automatic control method of the present embodiment comprises the steps:
Step 2, described first signal converter 2 is converted to temperature analog signal and the flow analog signals that receives data signal and is transferred to described charging host machine 3 by the charge system communication line;
Step 3, described pressure sensor 8 gather that chilled water systems are advanced, the pressure simulation signal of water return pipeline and be transferred to described secondary signal converter 9 and convert the pressure on the number signal to;
Step 4, the pressure on the number signal in described protocol converter 10 receiving steps three, and be the pressure signal that meets the charge system communications protocol with described pressure on the number signal assemble, the communication line by charge system is transferred to described charging host machine 3;
Preferably, described step 4 is specially: described protocol converter 10 is by built-in pressure sensor communication protocol, the pressure on the number signal that receives is carried out assembly coding by charge system communication line host-host protocol, and be transferred to described charging host machine 3 by the communication line of charge system.
The present invention is transferred to automatic control main frame 4 by Ethernet with temperature and the data on flows that charging host machine 3 receives, 8 pairs of pipelines of adopts pressure sensor measures for pressure of return water simultaneously, and carry out protocol encapsulation after reading pressure data by protocol converter 10, pass automatic control main frame 4 back through the communication line of charge system, the robot control system(RCS) computer obtains Lou Dong place pressure, Inlet and outlet water temperature and data on flows simultaneously, control the water pump operation frequency according to the user with the energy load variations after the comprehensive computing, realize effective energy supply.
The present invention has utilized existing charge system and communication line, has saved the cost of cabling, has avoided simultaneously overlapping investment; And by the building being located the collection of pressure, Inlet and outlet water temperature and data on flows, accurately grasp user's actual load situation of change, and can know that central air-conditioning efficiently moves, effectively save water pump and handpiece Water Chilling Units power consumption; Adopt the frequency conversion speed-adjusting system of Programmable Logic Controller, frequency converter, chilled water pump, changed discharge by changing motor speed, realized the accurate control to a building pressure reduction.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. central air-conditioning energy robot control system(RCS), comprise signal gathering unit, first signal converter, charging host machine, automatic control main frame and flow regulating unit, temperature signal and flow signal that described signal gathering unit is used for the collection chilled water system are transferred to described first signal converter; Described first signal converter is used for temperature analog signal and the flow analog signals that receives is converted to data signal and is transferred to described charging host machine by the charge system communication line, it is characterized in that:
Also comprise pressure sensor, secondary signal converter and protocol converter, described pressure sensor is separately positioned on inlet pipeline and the water return pipeline of chilled water system, be used for to gather that chilled water system is advanced, the pressure signal of water return pipeline and be transferred to described secondary signal converter;
Described secondary signal converter is used for converting the pressure simulation signal that receives to data signal, and is transferred to signal adapter;
Described signal adapter is used for reading the pressure on the number signal, and is that the signal that meets charge system communication line agreement is transferred to charging host machine with described pressure on the number signal assemble;
Described temperature digital signal, traffic figure signal, pressure on the number signal that described charging host machine is used for collecting are transferred to the automatic control main frame by Ethernet;
Described automatic control main frame is used for receiving described temperature digital signal, traffic figure signal and pressure on the number signal, and sends regulating command to flow regulating unit according to operation result;
Described flow regulating unit is used for receiving described regulating command, the flow of control chilled water system.
2. robot control system(RCS) according to claim 1, it is characterized in that: described signal gathering unit comprises temperature sensor and flowmeter, described temperature sensor is arranged on inlet pipeline and the water return pipeline of chilled water system, is used for gathering the temperature signal of chilled water system confession, water return pipeline and being transferred to described first signal converter; Described flowmeter is arranged on the inlet pipeline of chilled water system, is used for gathering the flow signal of chilled water system and being transferred to the first signal converter.
3. robot control system(RCS) according to claim 1, it is characterized in that: described flow regulating unit comprises Programmable Logic Controller, frequency converter and chilled water pump, and described Programmable Logic Controller be used for to receive the regulating command of automatic control main frame and the running frequency by the described chilled water pump of described Frequency Converter Control.
4. a central air-conditioning energy automatic control method comprises the steps:
Step 1, described temperature sensor and flow sensor gather the flow of inflow temperature, return water temperature and the chilled water system of chilled water system, and each data-signal that will collect is transferred to described first signal converter;
Step 2, described first signal converter is converted to temperature analog signal and the flow analog signals that receives data signal and is transferred to described charging host machine by the charge system communication line;
Step 3, described pressure sensor gather that chilled water system is advanced, the pressure simulation signal of water return pipeline and be transferred to described secondary signal converter and convert the pressure on the number signal to;
Step 4, the pressure on the number signal in the described protocol converter receiving step three, and be the pressure signal that meets the charge system communications protocol with described pressure on the number signal assemble, the communication line by charge system is transferred to described charging host machine;
Step 5, described charging host machine is transferred to the automatic control main frame with temperature signal, flow signal and the pressure signal that receives by Ethernet, the pressure value of described automatic control main frame by receiving, advance return water temperature and data on flows judge the user with can load variations, and send regulating command to flow regulating unit according to judged result;
Step 6, described flow regulating unit receives described regulating command, the flow of control chilled water system.
5. central air-conditioning energy automatic control method according to claim 4, it is characterized in that: described step 4 is further comprising the steps of: described protocol converter is by built-in pressure sensor communication protocol, the pressure on the number signal that receives is carried out assembly coding by charge system communication line host-host protocol, and be transferred to described charging host machine by the communication line of charge system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388730A (en) * | 2018-04-20 | 2019-10-29 | 青岛海尔空调器有限总公司 | Shared air-conditioning agent control |
| CN110388718A (en) * | 2018-04-20 | 2019-10-29 | 青岛海尔空调器有限总公司 | The control method and control system of shared air-conditioning |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309032A (en) * | 2003-04-08 | 2004-11-04 | Hiroshi Ogawa | Central air conditioning and heating equipment and its operation control method |
| CN201335489Y (en) * | 2009-01-19 | 2009-10-28 | 卢小刚 | Energy-saving management device for central air conditioner |
| CN202747535U (en) * | 2012-06-04 | 2013-02-20 | 北京中标新亚机电工程有限公司 | Water pump frequency-conversion fuzzy control system of central air-conditioner |
| CN203413774U (en) * | 2013-07-11 | 2014-01-29 | 武汉光谷节能技术有限公司 | Energy-saving automatic control system of central air conditioner |
-
2013
- 2013-07-11 CN CN201310289550.5A patent/CN103322653B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309032A (en) * | 2003-04-08 | 2004-11-04 | Hiroshi Ogawa | Central air conditioning and heating equipment and its operation control method |
| CN201335489Y (en) * | 2009-01-19 | 2009-10-28 | 卢小刚 | Energy-saving management device for central air conditioner |
| CN202747535U (en) * | 2012-06-04 | 2013-02-20 | 北京中标新亚机电工程有限公司 | Water pump frequency-conversion fuzzy control system of central air-conditioner |
| CN203413774U (en) * | 2013-07-11 | 2014-01-29 | 武汉光谷节能技术有限公司 | Energy-saving automatic control system of central air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 朱立彤等: "中央空调的分户计量系统", 《智能建筑电气技术》, vol. 1, no. 3, 30 June 2007 (2007-06-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388730A (en) * | 2018-04-20 | 2019-10-29 | 青岛海尔空调器有限总公司 | Shared air-conditioning agent control |
| CN110388718A (en) * | 2018-04-20 | 2019-10-29 | 青岛海尔空调器有限总公司 | The control method and control system of shared air-conditioning |
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| CN103322653B (en) | 2016-09-28 |
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