CN100549895C - Intelligent energy-saving device - Google Patents
Intelligent energy-saving device Download PDFInfo
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- CN100549895C CN100549895C CNB2003101133820A CN200310113382A CN100549895C CN 100549895 C CN100549895 C CN 100549895C CN B2003101133820 A CNB2003101133820 A CN B2003101133820A CN 200310113382 A CN200310113382 A CN 200310113382A CN 100549895 C CN100549895 C CN 100549895C
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Abstract
The invention discloses a kind of intelligent energy-saving device.Utilize intelligent frequency converter, target, circumstance of temperature difference range situation according to central air conditioner system, set by program parameter, control the needs of various motors in different occasions, when reaching pre-set parameter, control system makes motor always operate in the efficient place of maximum possible the Automatic Optimal energy consumption of electrical machinery.Both cut down the consumption of energy, reduce noise again, the present invention detects the tracking of compressor refrigerating capacity, make circulating water flow and refrigerating capacity keep coupling in real time, the annual power saving rate can reach more than 42%, by automatic detection to environmental parameter, automatically change the rotating speed of blower fan, the interior temperature of conditioned area is remained in the setting value, not only reduce set noise, power saving rate can reach more than 50%, pump motor is carried out variable frequency control, reduce the impact of electric motor starting, prolong service life of equipment, have characteristics such as efficient, energy-conservation, low noise electrical network.
Description
Technical field
The present invention relates to a kind of energy-saving device, particularly a kind ofly utilize intelligent frequency converter to make each motor of central air conditioner system operate in the intelligent energy-saving device at its maximal efficiency place.
Background technology
Central air conditioner system with present most of hotels, restaurant is an example, it is to utilize the mode of air intake opening fan door aperture or lubricious bypass to realize that the refrigerating capacity of central air conditioner compressor is regulated, under partial load condition, the energy value of unit and the power factor of motor all decline to a great extent; The adjusting of center air-condition circle water amount realizes by gate valve, and during actual motion, and these valves are actually whole unlatchings, make water system be in the up-set condition of " big flow, the little temperature difference " for a long time.Also have the frequency converter timing technology to be applied on the water circulating pump in recent years, but, can't keep synchronously, so the energy saving space there is limitation, and cause the problem of attending to one thing and lose sight of another such as unit tripping easily with refrigerating capacity owing to adopt the manually open loop control of quota; The fan delivery of the air-conditioning box of same central air conditioner system is to adopt plate washer to regulate, and reopens mostly during actual motion, does not make regulatory function basically, and air quantity can't change along with the variation of environment temperature, causes air conditioning area to occur cold or superheating phenomenon.Chinese patent for example: 98224345, automatic constant-pressure supplies water, the motor speed control device of constant temperature air-supply, Chinese patent application: 98104384, be used for commercial unit, especially material industry device drives device, they all do not have the robot control system(RCS) of closed loop band feedback, more do not have programmed control, therefore they can't realize changing with the variation of environment or load, and energy-conservation economize on electricity is difficulty comparatively.
Summary of the invention
The objective of the invention is to disclose a kind of intelligent energy-saving device, this equipment has overcome makes equipment be in the energy dissipation problem that inefficient duty causes in the prior art.
In order to achieve the above object, the intelligent energy-saving device of the present invention utilizes intelligent frequency converter, target according to central air conditioner system, circumstance of temperature difference range situation, set by program parameter, control the needs of various motors in different occasions, spreading parameter then can satisfy application requirements more flexibly, when reaching the parameter set-point, the energy consumption of control system meeting Automatic Optimal motor, therefore, except speed was provided by provide energy-conservation, motor also always operated in the efficient place of maximum possible, thereby had eliminated surplus capacity in the device design process and the surplus capacity in the equipment running process, it can directly connect with external sensor simultaneously, can realize accurate flow, pressure control can be accepted 0-10V, the standard feedback signal of 0-20mA or 4-20mA is optimized and accurately control during with the realization different application.
Intelligent energy-saving device can carry out the parameter establishment according to different environmental demand occasions and set.
Change less occasion at temperature range, be controlled at 20 ℃-25 ℃ as the guest room indoor temperature in winter in hotel, summer is at 18 ℃-22 ℃.Therefore, as long as come Control Circulation with input analog amount, the rotating speed of ebullator just can reach the optimal combination of energy consumption.Basic setting up procedure with analog quantity control is:
(1) with an electronic instrument for measuring temperature in certain room, observe its temperature variation.
(2) be connected with 5 with the terminal 9 of a start stop switch frequency converter.
(3) be connected to Frequency Converter Control end 1,2,3,4 with a potentiometer greater than 4.7K Ω, wherein terminal 3 connects and becomes the resistance end, terminates to potentiometer two stiff ends with 1 after 2 and 4 ends connect together.
(4) on input/output board, it is analog quantity voltage (V) input that DIP switch AIN1 pushes OFF, and P0756 is set at 0.
(5) connect frequency converter primary power (with reference to the accompanying drawings 1), and with the earthing of casing.
(6) parameter P1000 being set at 2 is the analog quantity input, controls by analog quantity:
Parameter P0700 is set at 2, and promptly Keyboard Control is under an embargo.
Parameter P0758 is set at 100%, promptly represents the highest frequency setting, is the respective value of maximum analog amount input value.
Parameter P0760 is set at 0%, and the setting of expression low-limit frequency is the respective value of minimum analog quantity input value.
(7) with the corresponding parameter P0304-P0311 that is input to of nominal parameter on the motor nameplate
Rated voltage V on the P0304 input motor nameplate
Rated current A on the P0305 input motor nameplate
Rated power P on the P0307 input motor nameplate
Rated power factor COS on the P0308 input motor nameplate
Rated efficiency η on the P0309 input motor nameplate
Rated frequency F on the P0310 input motor nameplate
Rated speed N on the P0311 input motor nameplate
(8) P1910 is set at 1 and r1912 be set at default value, promptly press the operation button key, intelligent frequency converter will be measured stator resistance automatically.
(9) start stop switch is connected regulator potentiometer, required frequency when room temperature reaches standard-required.
By above-mentioned simple programming method, regulate rotating speed of motor, can make the power consumption of motor be in optimal state.
In the big occasion of range of temperature, the water circulating pump on the heat exchanger in the hotel for example, because the height of the leaving water temperature of boiler changes, directly affects the temperature variation of hot air conditioner water, therefore, must carry out signal feedback control, boiler hot-water is substantially constant in the scope that needs, as 75 ℃-90 ℃, but so both power savings again can the fuel saving, and its operating parameter setting method is as follows:
(1) at first parameter P2200 is set at 1: i.e. the closed-loop control process control is used in expression, uses the analog quantity input service to be feedback signal.
(2) sensor that feedback signal can correctly be provided is installed on circulating water pipeline.
(3) on input/output board, DIP switch pushes ON and P0756 is set at 2, and the signal of importing I for analog quantity is the one pole feedback signal of 4-20mA.
(4) P1000 is set at 2, promptly represents analog input, and circuit is controlled by analog quantity.
(5) parameters such as P0758, P0760, P0304-P0311, P1910=1 are identical with the little situation of temperature difference scope.
(6), the terminal 9 and 5 of frequency converter is connected, and connect with a simple start stop switch.
(7) connect the frequency converter primary power, and connect ground wire.
Through after the above-mentioned simple programming, the analog signal current 0-20MA analog input 2 of temperature signal feedback sensing amount output is set, water circulating pump to be carried out effectively regulated control, the Automatic Optimal energy cost combination reaches energy-conservation purpose.
Intelligent energy-saving device is by the energy consumption Automatic Optimal, the modulating frequency Automatic Optimal, both capable of reducing energy consumption, can reduce noise again, the present invention detects automatically to the tracking of compressor refrigerating capacity, make circulating water flow keep coupling in real time with refrigerating capacity all the time, also can strengthen the offloading capacity of compressor, with the running on the lower load coupling, the annual power saving rate can reach to more than 42% more accurately in good time, by automatic detection to environmental parameter, automatically change the rotating speed of blower fan, the interior temperature of conditioned area is remained in the setting value, not only reduce set noise, power saving rate can reach more than 50%, pump motor is carried out variable frequency control, reduce the impact of electric motor starting, reduce the vibrations and the noise of water pump electrical network, prolong service life of equipment, set by simple parameter, make control system Automatic Optimal energy consumption of electrical machinery, make motor be in the operation of maximal efficiency place.Therefore this device has characteristics such as efficient, energy-conservation, low noise.
Description of drawings
Fig. 1 is to air-conditioning draught fan rotating speed control electrical schematic diagram;
Fig. 2 is to circulating pump motor control principle figure;
Fig. 3 is the intelligent frequency convertor fundamental diagram;
Fig. 4 electrical diagram of the present invention.
Embodiment
Change less occasion at temperature range, be controlled at 20 ℃-25 ℃ as the guest room indoor temperature in winter in hotel, summer is at 18 ℃-22 ℃.Therefore, need only the rotating speed of controlling blower motor with input analog amount, just can reach the optimal combination of energy consumption.The control end 1,2,3,4 of intelligent frequency converter is connected with potentiometer B, and wherein control end 3 connects and becomes the resistance end, 2 and 4 connect together after and 1 two stiff ends that terminate to potentiometer, the motor M of air-conditioning draught fan is connected with intelligent frequency converter ECO through lead; Intelligent frequency converter is connected with primary power.Referring to Fig. 1,3,4.
Basic setting up procedure with analog quantity control is:
(1) with an electronic instrument for measuring temperature in certain room, observe its temperature variation.
(2) with a start stop switch A terminal 9 of frequency converter is connected with 5.
(3) be connected to frequency converter ECO control end 1,2,3,4 with a potentiometer B greater than 4.7K Ω, wherein terminal 3 connects and becomes the resistance end, terminates to potentiometer two stiff ends with 1 after 2 and 4 ends connect together.
(4) on input/output board, it is analog quantity voltage (V) input that DIP switch AIN1 pushes OFF, and P0756 is set at 0.
(5) connect intelligent frequency convertor primary power (with reference to the accompanying drawings 1), and with the earthing of casing.
(6) parameter P1000 being set at 2 is the analog quantity input, controls by analog quantity
Parameter P0700 is set at 2, and promptly Keyboard Control is under an embargo.
Parameter P0758 is set at 100%, promptly represents the highest frequency setting, is the respective value of maximum analog amount input value.
Parameter P0760 is set at 0%, and the setting of expression low-limit frequency is the respective value of minimum analog quantity input value.
(7) with the corresponding parameter P0304-P0311 that is input to of nominal parameter on the motor nameplate
Rated voltage V on the P0304 input motor nameplate
Rated current A on the P0305 input motor nameplate
Rated power P on the P0307 input motor nameplate
Rated power factor COS Φ on the P0308 input motor nameplate
Rated efficiency η on the P0309 input motor nameplate
Rated frequency F on the P0310 input motor nameplate
Rated speed N on the P0311 input motor nameplate
(8) P1910 is set at 1 and r1912 be set at default value, promptly press the operation button key, take leave intelligent frequency converter and will measure stator resistance automatically.
(9) start stop switch is connected regulator potentiometer, required frequency when room temperature reaches standard-required.
By above-mentioned simple programming method, regulate rotating speed of motor, can make the power consumption of motor be in optimal state.
In the big occasion of range of temperature, the water circulating pump on the heat exchanger in the hotel for example, because the height of the leaving water temperature of boiler changes, directly affects the temperature variation of hot air conditioner water, therefore, must carry out signal feedback control, boiler hot-water is substantially constant in the scope that needs, as 75 ℃-90 ℃, but so both power savings, again can the fuel saving, the intelligent frequency converter ECO of this equipment is connected with the motor M of water circulating pump through lead, and intelligent frequency converter is connected with primary power; The control end 5,9 of intelligent frequency converter is connected to and opens left alone without help switch A.Referring to Fig. 2,3,4.
Its operating parameter setting method is as follows:
(1) at first parameter P2200 is set at 1: i.e. the closed-loop control process control is used in expression, uses the analog quantity input service to be feedback signal.
(2) sensor that feedback signal can correctly be provided is installed on circulating water pipeline.
(3) on input/output board, DIP switch pushes ON and P0756 is set at 2, and the signal of importing I for analog quantity is the one pole feedback signal of 4-20mA.
(4) P1000 is set at 2, promptly represents analog input, and circuit is controlled by analog quantity.
(5) parameters such as P0758, P0760, P0304-P0311, P1910=1 are identical with the little situation of temperature difference scope.
(6), the terminal 9 and 5 of frequency converter is connected, and connect with a simple start stop switch A.
(7) connect the frequency converter primary power, and connect ground wire.
Through after the above-mentioned simple programming, the analog signal current 0-20MA analog input 2 of temperature signal feedback sensing amount output is set, water circulating pump to be carried out effectively regulated control, the Automatic Optimal energy cost combination reaches energy-conservation purpose.
Intelligent energy-saving device passes through the energy consumption Automatic Optimal, and the modulating frequency Automatic Optimal was both capable of reducing energy consumption, can reduce noise again.
Claims (1)
1, a kind of intelligent energy-saving device, it is characterized in that: utilize intelligent frequency converter, target, circumstance of temperature difference range situation according to central air conditioner system, set by program parameter, control the needs of various motors in different occasions, when reaching pre-set parameter, control system makes motor always operate in the efficient place of maximum possible the Automatic Optimal energy consumption of electrical machinery;
Under the less situation of difference variation,, the steps include: as long as come the Control Circulation pump rotary speed with input analog amount
(1) is placed in certain room with an electronic instrument for measuring temperature, observes its temperature variation;
(2) be connected with 5 with the terminal 9 of a start stop switch intelligent frequency converter;
(3) be connected to intelligent Frequency Converter Control end 1,2,3,4 with a potentiometer greater than 4.7K Ω, wherein terminal 3 connects and becomes the resistance end, terminates to potentiometer two stiff ends with 1 after 2 and 4 ends connect together;
(4) on input/output board, it is the analog quantity voltage input that DIP switch AIN1 pushes OFF, and P0756 is set at 0;
(5) connect the frequency converter primary power;
(6) parameter P1000 is set at 2,
Parameter P0700 is set at 2,
Parameter P0758 is set at 100%, and P0760 is set at 0%;
(7) be input in the parameter P0304-P0311 nominal parameter on the name plate of motor is corresponding;
(8) P1910 is set at 1 and r1912 be set at default value;
(9) start stop switch is connected regulator potentiometer, required frequency values when room temperature reaches standard-required;
Under the big situation of difference variation scope, the operating parameter setting method is:
(1) parameter P2200 is set at 1, system enters the PID closed-loop control;
(2) temperature sensor is installed on the water circulating pump return pipe;
(3) on input/output board, DIP switch pushes ON and P0756 is set at 2, is the one pole feedback signal of 4-20mA for the analog quantity input current signal;
(4) parameter P1000 is set at 2, the analog quantity input, and complete machine is controlled by analog quantity;
(5) parameter P0758 is set at 100%, and P0760 is set at 0%;
(6) nominal parameter is corresponding on the name plate of motor is input in the parameter setting P0304-P0311, and P1910=1;
(7) be connected with 5 with the terminal 9 of a start stop switch frequency converter;
(8) connect the frequency converter primary power, and connect ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101133820A CN100549895C (en) | 2003-11-18 | 2003-11-18 | Intelligent energy-saving device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101133820A CN100549895C (en) | 2003-11-18 | 2003-11-18 | Intelligent energy-saving device |
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| Publication Number | Publication Date |
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| CN1619449A CN1619449A (en) | 2005-05-25 |
| CN100549895C true CN100549895C (en) | 2009-10-14 |
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| CNB2003101133820A Expired - Fee Related CN100549895C (en) | 2003-11-18 | 2003-11-18 | Intelligent energy-saving device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106642416B (en) * | 2015-11-02 | 2020-09-29 | 维谛技术有限公司 | Air conditioning system, composite condenser and operation control method and device of air conditioning system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173370Y (en) * | 1993-04-19 | 1994-08-03 | 易新琼 | Frequency-changing controller for water pump of central air conditioner |
| CN1375665A (en) * | 2001-03-20 | 2002-10-23 | 广东省科学院自动化工程研制中心 | Intelligent power saving system for central air conditioner |
| CN2578712Y (en) * | 2003-01-08 | 2003-10-08 | 北京科瑞易联节能科技发展有限公司 | Central hot water supply pump frequency variable controller of central air conditioner |
-
2003
- 2003-11-18 CN CNB2003101133820A patent/CN100549895C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173370Y (en) * | 1993-04-19 | 1994-08-03 | 易新琼 | Frequency-changing controller for water pump of central air conditioner |
| CN1375665A (en) * | 2001-03-20 | 2002-10-23 | 广东省科学院自动化工程研制中心 | Intelligent power saving system for central air conditioner |
| CN2578712Y (en) * | 2003-01-08 | 2003-10-08 | 北京科瑞易联节能科技发展有限公司 | Central hot water supply pump frequency variable controller of central air conditioner |
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| CN1619449A (en) | 2005-05-25 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20090213 Address after: Beijing city Haidian District minzhuang Road No. 3 Building No. 10 room 101 post encoding: 100097 Applicant after: Lepro Seva (Beijing) Energy-Saving Technology Co., Ltd. Address before: North Industrial Zone, Shunyi District, Beijing, China: 101315 Applicant before: Yuepu Sifang Science and Technology Development Co., Ltd., Beijing |
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Owner name: LEPU SIFANG (BEIJING) ENERGY SAVING TECHNOLOGY CO. Free format text: FORMER OWNER: LEPU SIFANG SCIENCE + TECHNOLOGY CO., LTD., BEIJING Effective date: 20090213 |
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Owner name: BEIJING LEPRO SEVA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LEPRO SEVA (BEIJING) ENERGY-SAVING TECHNOLOGY CO., LTD. Effective date: 20101228 |
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Free format text: CORRECT: ADDRESS; FROM: 100097 ROOM 101, BUILDING 10, NO.3, MINZHUANG ROAD, HAIDIAN DISTRICT, BEIJING TO: 100195 ROOM 102, 1/F, WEST SIDE OF BUILDING 10, NO.3, MINZHUANG ROAD, HAIDIAN DISTRICT, BEIJING |
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Effective date of registration: 20101228 Address after: 100195 Beijing city Haidian District minzhuang Road No. 3 Building No. 10 on the west side of a Room 102 Patentee after: Beijing Lepro Seva Da Science and Technology Limited Liability Company Address before: 100097 Beijing city Haidian District minzhuang Road No. 3, building 10, room 101 Patentee before: Lepu Sifang (Beijing) Energy Saving Technology Co., Ltd. |
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Granted publication date: 20091014 Termination date: 20171118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |