CN201129827Y - Central air conditioner control equipment - Google Patents

Central air conditioner control equipment Download PDF

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Publication number
CN201129827Y
CN201129827Y CNU2007203055548U CN200720305554U CN201129827Y CN 201129827 Y CN201129827 Y CN 201129827Y CN U2007203055548 U CNU2007203055548 U CN U2007203055548U CN 200720305554 U CN200720305554 U CN 200720305554U CN 201129827 Y CN201129827 Y CN 201129827Y
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CN
China
Prior art keywords
temperature sensor
central air
control
air
controller
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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.)
Expired - Fee Related
Application number
CNU2007203055548U
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Chinese (zh)
Inventor
刘纯祥
姚琛
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CHONGQING YIKE TECHNOLOGY Co Ltd
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CHONGQING YIKE TECHNOLOGY Co Ltd
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Priority to CNU2007203055548U priority Critical patent/CN201129827Y/en
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Publication of CN201129827Y publication Critical patent/CN201129827Y/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a central air-conditioning control apparatus, which comprises sensors for inducting loading data, input devices which are connected with the sensors and are used to receive inducting data, the input devices are connected with a controller which analyzes the inducting data and sends relative control signals, the controller is connected with an output device which transfers the control signals, the output device is connected with a frequency changing control device which is executed and operated according to the control signals, the frequency changing control device is connected with a chilled water pump, an air-conditioning host machine, a cooling water pump, a heating water pump, a cooling tower draught fan device, a fresh air device and an end draught fan device. The controller is connected with a liquid supplying volume and a water distributor electric control valve which are executed and operated according to the control signals. The central air-conditioning control apparatus of the utility model can assure the comprehensive regulation through analyzing inducting data which are inducted by an inductor and producing relative control signals according to the result which is analyzed.

Description

A kind of central air-conditioning control appliance
Technical field
The utility model relates to the automatic control technology field, is meant a kind of central air-conditioning control appliance especially.
Background technology
In the middle of daily life, since the variation of temperature, a lot of central air-conditioning that mansion all is equipped with.Central air-conditioning can be concentrated simultaneously and be a plurality of office spaces heating installation or the cold wind of mansion, to reach indoor temperature is adjusted to the needed temperature of user.
Central air-conditioning generally includes air-conditioner host device, auxiliary machinery device and terminal blower fan apparatus.Wherein, host apparatus comprises compressor, evaporimeter, condenser etc.; Auxiliary machinery device comprises refrigerating water pump, coolant pump, cold tower blower fan; Terminal blower fan apparatus comprises new blower fan and terminal air processing machine etc.
The load of present central air-conditioning all is according to design at full capacity, and adds safety coefficient, and in fact overwhelming majority time air-conditioning is can not operate under the full load condition.According to statistics, central air-conditioning has the time about 80% to run on below 75% underload.Most of central air-conditioning all are designed to constant flow, constant air volume system, often occur air quantity, the excessive situation of the water yield when underload, cause the waste of energy greatly.
For reducing energy waste, central air-conditioning much adopts frequency converter to regulate power save mode as now, both adjusted rotating speed of motor according to chilled water pump, cooling water pump and blower fan apparatus load variations, under the situation that satisfies the central air-conditioning operate as normal, make water pump and blower fan make corresponding adjusting, to reach energy-conservation purpose.The air conditioner water pump frequency conversion energy-saving control device that has, it is respectively arranged with temperature sensor at chilled water import and export and cooling water import and export, utilize the temperature approach of chilled water import and export and cooling water import and export to compare, control the running frequency of water pump with setting temperature approach.This structure can according to circumstances be adjusted the rotating speed of pump motor, plays certain energy-conserving action.But the running of central air-conditioning is to be subjected to influence of various factors, and running is the situation of a nonlinear change, and the temperature difference is regulated just aspect, can not represent all ruuning situations of central air-conditioning.Only depend on and adopt temperature difference adjusting can not reach good regulating effect; And if control the improper transfer that also can cause energy.
The utility model content
In view of this, the utility model is to provide a kind of central air-conditioning control appliance, regulates central air-conditioning, the problem that regulating effect is not good to solve the above-mentioned employing temperature difference.
For addressing the above problem, the utility model provides a kind of central air-conditioning control appliance, comprise: first temperature sensor that is installed in the chilled water water inlet of air-conditioner host, second temperature sensor of chilled water delivery port, be installed in the three-temperature sensor of air-conditioner host cooling water intake, the 4th temperature sensor of cooling water outlet, be installed in the 5th temperature sensor of water knockout drum motor-operated control valve delivery port, be installed in the 6th temperature sensor of water collector water return outlet, be installed in the 7th indoor temperature sensor and gas concentration lwevel sensor, be installed in the 8th outdoor temperature sensor, be installed in the flow sensor at chilled water loop place; Described each sensor connects the input unit that is used to receive sensed data, described input unit connects the controller of analyzing described sensed data and sending corresponding control signal, described controller connects the output device of transmitting described control signal, described output device connects the frequency-converting control device according to described control signal executable operations, and described frequency-converting control device connects chilled water pump, air-conditioner host, cooling water pump, heating water pump, cooling tower blower fan apparatus, aeration device, terminal blower fan apparatus; Described controller connects liquid supply rate control device and the water knockout drum motor-operated control valve according to described control signal executable operations.
Preferably, described controller also connects the man-machine interface that shows described control signal and receive input command.
Preferably, described controller also is equipped with the computer network communication interface.
Preferably, described computer network communication interface is blue tooth interface, infrared interface, RJ45, RS485, RS232 interface or 802.11 interfaces.
Preferably, described computer network interface also connects remote control computer.
Central air-conditioning control appliance of the present utility model, can analyze by the multiple sensed data of sensing of inductor, and produce control signal corresponding according to the result after analyzing, with the comprehensive regulation of assurance central air-conditioning, thereby solved the problem that only depends on the single temperature difference to regulate the simple adjustment weak effect of central air-conditioning.
Description of drawings
Fig. 1 is the structure chart of preferred embodiment of the present utility model.
The specific embodiment
For clearly demonstrating central air-conditioning control appliance of the present utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.
Referring to Fig. 1, Fig. 1 is the structure chart of preferred embodiment of the present utility model.Central air-conditioning control appliance in this embodiment, comprise: first temperature sensor that is installed in the chilled water water inlet of air-conditioner host, second temperature sensor of chilled water delivery port, be installed in the three-temperature sensor of air-conditioner host cooling water intake, the 4th temperature sensor of cooling water outlet, be installed in the 5th temperature sensor of water knockout drum motor-operated control valve delivery port, be installed in the 6th temperature sensor of water collector water return outlet, be installed in the 7th indoor temperature sensor and gas concentration lwevel sensor, be installed in the 8th outdoor temperature sensor, be installed in the flow sensor at chilled water loop place; Described each sensor connects the input unit that is used to receive sensed data, described input unit connects the controller of analyzing described sensed data and sending corresponding control signal, described controller connects the output device of transmitting described control signal, described output device connects the frequency-converting control device according to described control signal executable operations, and described frequency-converting control device connects chilled water pump, air-conditioner host, cooling water pump, adopts dim water pump, cooling tower blower fan apparatus, aeration device, terminal blower fan apparatus; Described controller connects liquid supply rate control device and the water knockout drum motor-operated control valve according to described control signal executable operations.
In the above-mentioned controller control module is installed, can realize the sensed data of the received expression intensity of load of each sensor is carried out analyzing and processing, and produce feedback control signal according to pre-set threshold, with the operation of the frequency-converting control device of controlling air-conditioner host, chilled water pump, cooling water pump, blower fan of cooling tower, heating water pump, terminal blower fan apparatus and aeration device respectively; And the open degree of rationally adjusting the refrigerant liquid supply rate and the water knockout drum motor-operated control valve controller of liquid supply rate control device according to device actual load situation.
Controller is sent to frequency-converting control device by output device with control signal, handle each executing agency of central air-conditioning by frequency-converting control device, each executing agency comprises frequency converter and relevant control circuit, respectively air-conditioner host, chilled water pump, cooling water pump, blower fan of cooling tower, heating water pump, terminal blower fan apparatus and aeration device are realized VFC, rationally adjusted the open degree of motor-operated control valve on the water knockout drum, reach unsteady flow amount, variable air volume running and reach load control according to the liquid supply rate of the real-time adjustment refrigerant of actual load.
The control appliance of the foregoing description for the chilled water loop of central air-conditioning, can be determined the minimum running frequency of a chilled water earlier when carrying out control, guarantee normal, the safe operation of central air-conditioning.When load changes, chilled water Inlet and outlet water temperature sensor, the water knockout drum temperature sensor, the water collector temperature sensor, indoor temperature transmitter and terminal flow sensor are delivered to controller with detected these parameters by input unit, controller is according to the real time data of being gathered, air quality and history data, calculate the required refrigerating capacity of central air-conditioning load in real time, and freezing supply and return water temperature, the optimum value of the temperature difference, utilize these values and present operational factor to compare, rationally adjust the open degree of water knockout drum motor-operated control valve, and regulate the frequency converter output frequency with this, the rotating speed of control chilled water pump changes the supply and return water temperature that its flow makes the chilled water device, the flow of the temperature difference and each subregion operates in the optimal value that controller provides.
The control appliance of the foregoing description for the heating loop of central air-conditioning, can be determined the minimum running frequency of a heating water earlier when carrying out control, assurance device is normal, safe operation.When load changes, heating water Inlet and outlet water temperature sensor, the water knockout drum temperature sensor, the water collector temperature sensor, indoor temperature transmitter and terminal flow sensor are delivered to controller with detected these parameters by input unit, controller is according to the real time data of being gathered, the history data of control quality and device, calculate the required actual load of load in real time, and heating supply and return water temperature, the optimum value of the temperature difference, utilize these values and present operational factor to compare, rationally adjust the open degree of water knockout drum motor-operated control valve, and regulate the frequency converter output frequency with this, the rotating speed of control heating water pump changes the supply and return water temperature that its flow makes heating water device, the flow of the temperature difference and each subregion operates in the optimal value that controller provides.
The control appliance of the foregoing description for the cooling water loop of central air-conditioning, can be determined the minimum running frequency of a cooling water pump earlier, the highest, the normal safe operation of minimum temperature assurance device of cooling water water inlet when carrying out control.When environment temperature and device load change, the load of central air conditioner main machine will change thereupon, and the best condensation temperature of main condenser also changes thereupon.Controller is according to the cooling water Inlet and outlet water temperature of being gathered and the history data of outdoor temperature real time data and device, calculate the optimum temperature of main condenser, and the best inlet temperature of cooling water, and compare with this temperature and actual motion temperature, and regulate the output frequency of cooling water pump frequency converter with this, the control cooling water pump, the flow of dynamic adjustments cooling water, make the inlet temperature of cooling water approach the optimal value that controller provides, thereby guarantee that central air conditioner main machine is in operation under the optimal conversion efficiency state at any time.
Because chilled water unit adopts optimal conversion efficiency control, guaranteed that central air conditioner main machine is under the situation of full load and sub-load, all be in optimum Working, remain best energy utilization rate, thereby the energy consumption that has reduced air-conditioner host has improved efficient, because being the control of load automatic optimal, the device that adopts both avoided the energy of host apparatus to shift like this, move because of cooling water pump is lower than under the rated load through being everlasting simultaneously, also saved the energy consumption of cooling water pump to greatest extent.
The control appliance of the foregoing description is when carrying out control, for the terminal blower fan apparatus of central air-conditioning and the variable air rate device of new blower fan:
Determine the minimum running frequency of a blower fan, assurance device safe operation earlier according to the blower fan apparatus characteristic.Work as indoor temperature, when indoor carbon dioxide concentration and load change, indoor temperature transmitter, outdoor temperature sensor and gas concentration lwevel sensor are delivered to controller with detected these parameters, controller is according to the real time data of being gathered and the history data of device, calculate the required air quantity of air conditioner load in real time, and the optimum value of design temperature, and regulate the frequency converter output frequency with this, the rotating speed of control blower fan, change the air quantity of terminal blower fan and the resh air requirement of new blower fan and make indoor temperature operate in the optimal value that controller provides, thereby guarantee indoor comfort level.
The control appliance of the foregoing description for the cooling tower blower fan apparatus of central air-conditioning, can be determined the minimum running frequency of a blower fan, assurance device safe operation earlier according to cooling tower characteristic and central air conditioner main machine characteristic when carrying out control.When outdoor temperature, cooling water turnover temperature and air conditioner load change, outdoor temperature sensor and cold in-water temperature sensor are delivered to controller, controller is according to real time data of being gathered and historical data, calculate the cold in-water temperature value that meets main frame operating mode needs, and regulate the frequency converter output frequency with this, the control rotation speed of fan obtains good energy-saving effect.
The control appliance of the foregoing description for the water knockout drum motor-operated control valve of central air-conditioning, can be determined a desired flow scope, assurance device safe operation earlier when carrying out control.When control area temperature, cold water turnover temperature and air conditioner load change, the data that motor-operated control valve temperature sensor and chilled water inflow temperature sensor will detect are in real time delivered to controller, controller is according to real time data of being gathered and historical data, calculate and meet the needed chilled water flow value of control area operating mode, and regulate the open degree of motor-operated control valve with this, obtain good energy-saving effect.
The control appliance of the foregoing description is when carrying out control, liquid supply rate control device for central air-conditioning, can be when control area temperature, cold water turnover temperature and air conditioner load change according to aircondition actual load situation, controller is according to real time data of being gathered and historical data, calculate the needed rational refrigerating capacity of operating mode, and, make under the rational air conditioning condition of device operation with this size of controlling the refrigerant liquid supply rate.
In the above-described embodiment, controller also can be equipped with the computer network communication interface, and these interfaces can be used for the network interface of compunication for blue tooth interface, infrared interface, RJ45, RS485, RS232 interface or 802.11 interfaces etc.Controller links to each other by the computer of network interface with far-end control.
Simultaneously, under the situation by the remote control computer networking, the central air-conditioning control appliance is except realizing Automatic Control, and timed power on/off, main frame, water pump, blower fan and motor-operated control valve co-ordination can also realize Long-distance Control.At this moment, can set up database for aircondition, by the data analysis center of far-end, analyze real time data and historical data, constantly be analyzed, and constantly adjust, power savings is better.
In the above-described embodiment, controller also can connect man-machine interface, utilizes software and database setting, can realize the device load control of automatic optimal.
Central air-conditioning control appliance in the foregoing description has the following advantages:
(1) owing to is provided with indoor temperature transmitter and indoor carbon dioxide sensor, can realize VFC on the one hand to terminal blower fan apparatus and new blower fan apparatus, realize energy-conservation and more comfortable environment is provided, on the other hand, can more effectively control air-conditioner host, the operation of chilled water pump and cooling water pump improves energy-saving effect;
(2) by being provided with the motor-operated control valve controller, can realize flow-control on the one hand to each subregion, realize energy-conservation and more comfortable environment is provided, on the other hand, can more effectively control the whole flow of refrigerating plant, better improve energy-saving effect;
(3) in the cooling water loop, by a temperature sensor being set outdoor, cooling water inlet is provided with a temperature sensor, utilize characteristic and the historical data of outdoor temperature situation and the load condition of main frame of cooling water loop, analyze the optimum temperature value of cooling water water inlet, control the operating load of adjusting cooling water pump, compare better effects if with pressure differential method control cooling water pump with adopting temperature differential method control;
(4) in cooling tower, by a temperature sensor being set outdoor, cooling water inlet is provided with a temperature sensor, utilize the historical data of cooling water temperature situation and outdoor temperature situation and the load condition of main frame, analyze the optimum temperature value of cooling water water inlet, control the running frequency of adjusting blower fan of cooling tower, improve the energy-saving effect of cooling tower device;
(5) controller can connect the both-way communication of remote control computer, thereby can realize Long-distance Control, thus, can realize by monitoring system software and the powerful software controlled machine of historical data base composition function, be in operation, constantly improve and enrich its data library device, and then analyze, revise operational factor, accomplish optimal control results.
Describe preferred embodiment of the present utility model above in detail; for the central air-conditioning control appliance of being set forth among the embodiment; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (5)

1, a kind of central air-conditioning control appliance, it is characterized in that, comprise: first temperature sensor that is installed in the chilled water water inlet of air-conditioner host, second temperature sensor of chilled water delivery port, be installed in the three-temperature sensor of air-conditioner host cooling water intake, the 4th temperature sensor of cooling water outlet, be installed in the 5th temperature sensor of water knockout drum motor-operated control valve delivery port, be installed in the 6th temperature sensor of water collector water return outlet, be installed in the 7th indoor temperature sensor and gas concentration lwevel sensor, be installed in the 8th outdoor temperature sensor, be installed in the flow sensor at chilled water loop place; Described each sensor connects the input unit that is used to receive sensed data, described input unit connects the controller of analyzing described sensed data and sending corresponding control signal, described controller connects the output device of transmitting described control signal, described output device connects the frequency-converting control device according to described control signal executable operations, and described frequency-converting control device connects chilled water pump, air-conditioner host, cooling water pump, heating water pump, cooling tower blower fan apparatus, aeration device, terminal blower fan apparatus; Described controller connects liquid supply rate control device and the water knockout drum motor-operated control valve according to described control signal executable operations.
2, central air-conditioning control appliance according to claim 1 is characterized in that, described controller also connects the man-machine interface that shows described control signal and receive input command.
3, central air-conditioning control appliance according to claim 1 is characterized in that, described controller also is equipped with the computer network communication interface.
4, central air-conditioning control appliance according to claim 3 is characterized in that, described computer network communication interface is blue tooth interface, infrared interface, RJ45, RS485, RS232 interface or 802.11 interfaces.
5, central air-conditioning control appliance according to claim 3 is characterized in that, described computer network interface also connects remote control computer.
CNU2007203055548U 2007-11-21 2007-11-21 Central air conditioner control equipment Expired - Fee Related CN201129827Y (en)

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Application Number Priority Date Filing Date Title
CNU2007203055548U CN201129827Y (en) 2007-11-21 2007-11-21 Central air conditioner control equipment

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425844A (en) * 2011-09-28 2012-04-25 福建邮科通信技术有限公司 Energy saving system of air conditioner
CN103047739A (en) * 2012-12-28 2013-04-17 无锡博欧节能科技有限公司 Intelligent central ventilation system and remote automatic batch software updating method
CN103512116A (en) * 2013-10-25 2014-01-15 宋波 House type radiation tail end air conditioner system and control system
CN104390316A (en) * 2014-12-25 2015-03-04 李钢 Distributed freeze pump controller for concentrated air conditioning
CN104566785A (en) * 2014-12-15 2015-04-29 郑州轻工业学院 Intelligent distribution method and intelligent distribution system for refrigerating capacity of central air conditioner
CN104896678A (en) * 2015-06-19 2015-09-09 郑州轻工业学院 Intelligent control system of water chilling unit
CN105864959A (en) * 2016-03-31 2016-08-17 北京博锐尚格节能技术股份有限公司 Controller for water distributor and water collector
CN105757892B (en) * 2016-03-18 2018-07-17 广东美的暖通设备有限公司 A kind of air conditioner intelligent control method and system based on personal information in air conditioning area
CN108469103A (en) * 2017-02-21 2018-08-31 群光电能科技股份有限公司 Water pump of air conditioner control method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425844A (en) * 2011-09-28 2012-04-25 福建邮科通信技术有限公司 Energy saving system of air conditioner
CN103047739A (en) * 2012-12-28 2013-04-17 无锡博欧节能科技有限公司 Intelligent central ventilation system and remote automatic batch software updating method
CN103047739B (en) * 2012-12-28 2015-06-03 无锡博欧节能科技有限公司 Intelligent central ventilation system and remote automatic batch software updating method
CN103512116B (en) * 2013-10-25 2017-01-04 宋波 A kind of family formula radiation tail end air conditioning system and control system
CN103512116A (en) * 2013-10-25 2014-01-15 宋波 House type radiation tail end air conditioner system and control system
CN104566785A (en) * 2014-12-15 2015-04-29 郑州轻工业学院 Intelligent distribution method and intelligent distribution system for refrigerating capacity of central air conditioner
CN104566785B (en) * 2014-12-15 2017-04-26 郑州轻工业学院 Intelligent distribution system for refrigerating capacity of central air conditioner
CN104390316A (en) * 2014-12-25 2015-03-04 李钢 Distributed freeze pump controller for concentrated air conditioning
CN104390316B (en) * 2014-12-25 2017-05-17 李钢 Distributed freeze pump controller for concentrated air conditioning
CN104896678A (en) * 2015-06-19 2015-09-09 郑州轻工业学院 Intelligent control system of water chilling unit
CN105757892B (en) * 2016-03-18 2018-07-17 广东美的暖通设备有限公司 A kind of air conditioner intelligent control method and system based on personal information in air conditioning area
CN105864959A (en) * 2016-03-31 2016-08-17 北京博锐尚格节能技术股份有限公司 Controller for water distributor and water collector
CN105864959B (en) * 2016-03-31 2018-12-28 北京博锐尚格节能技术股份有限公司 A kind of water collecting and diversifying device controller
CN108469103A (en) * 2017-02-21 2018-08-31 群光电能科技股份有限公司 Water pump of air conditioner control method
CN108469103B (en) * 2017-02-21 2020-07-31 群光电能科技股份有限公司 Air conditioner water pump control method

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Granted publication date: 20081008

Termination date: 20131121