CN201717828U - Intelligent power-saving equipment - Google Patents

Intelligent power-saving equipment Download PDF

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Publication number
CN201717828U
CN201717828U CN2010202577792U CN201020257779U CN201717828U CN 201717828 U CN201717828 U CN 201717828U CN 2010202577792 U CN2010202577792 U CN 2010202577792U CN 201020257779 U CN201020257779 U CN 201020257779U CN 201717828 U CN201717828 U CN 201717828U
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China
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intelligent
frequency converter
intelligent frequency
control
potentiometer
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Expired - Fee Related
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CN2010202577792U
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Chinese (zh)
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王文民
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Individual
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Individual
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  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

The utility model discloses intelligent power-saving equipment which comprises an intelligent frequency converter, a potentiometer, a fan, a water circulating pump and a starting and stopping switch, wherein the intelligent frequency converter is connected with a motor of the fan or the water circulating pump; the control end 2 and the control end 4 of the intelligent frequency converter are connected together, and then the control ends 2 and 4 and the control end 1 are respectively connected with two fixed ends of the potentiometer, the control end 3 of the intelligent frequency converter is connected with the resistance converting end of the potentiometer; and the other two control ends 5 and 9 of the intelligent frequency converter are connected with the starting and stopping switch. The intelligent power-saving equipment can change the rotating speed of the fan automatically so as to maintain the temperature in an air-conditioning area within the range of set values, thus reducing the noise of a machine, saving power by more than 50 percent, controlling the frequency of the motor of a water pump, reducing impact on a power grid when the motor is started, and prolonging the service life of the equipment; and the intelligent power-saving equipment has the characteristics of high efficiency, energy preservation, low noise and the like.

Description

A kind of intelligent energy-saving device
Technical field
The utility model belongs to the power-saving technique field, particularly a kind of intelligent energy-saving device.
Background technology
At present, in the central air conditioner system, it is to utilize the mode of air inlet fan door aperture or lubricated bypass to realize that the refrigerating capacity of central air-conditioning compressor is regulated, under partial load condition, unit energy value and motor power factor all decline to a great extent, and the adjusting of center air-condition circle water amount realizes by gate valve, and during actual motion, these valves are actually whole unlatchings, make water system be in the abnormal state of big flow, the little temperature difference for a long time.Also have this year the frequency converter timing technology to be applied on the circulating water pump, but, can't keep synchronously, so the energy saving space there is limitation, and cause problem 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 baffle plate to regulate, reopen mostly during actual motion, basically do not do regulatory function, air quantity can't change along with variations in temperature, cause air conditioning area to occur cold or superheating phenomenon, prior art does not all have the robot control system(RCS) of closed loop band feedback, does not more have program control, therefore can't realize changing with the variation of environment or load, energy-conservation economize on electricity is difficulty comparatively.
Summary of the invention
The purpose of this utility model is in order to address the above problem, provide a kind of tracking to detect to 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 set point, not only reduce set noise, power saving rate can reach more than 50%, and pump motor is carried out variable frequency control, reduces the impact of electric motor starting to electrical network, prolong service life of equipment, have efficient, energy-conservation, the intelligent energy-saving device of characteristics such as low noise.
In order to achieve the above object, the technical scheme that the utility model provides is: a kind of intelligent energy-saving device, and it comprises intelligent frequency convertor, potentiometer, blower fan, circulating water pump and start stop switch; Intelligent frequency convertor is connected with the motor of blower fan or circulating water pump; Wherein two control ends 2,4 of intelligent frequency converter link together and then are connected with two stiff ends of potentiometer respectively with control end 1; The control end 3 of intelligent frequency converter is connected with the change of potentiometer resistance end; Two control ends of other of intelligent frequency-conversion controller 5,9 are connected with start stop switch;
This intelligent energy-saving device also comprises temperature sensor; Temperature sensor is connected with the control end 3,4 of intelligent frequency convertor.
Energy-saving device of the present utility model passes through the energy consumption Automatic Optimal, and the modulating frequency Automatic Optimal was both capable of reducing energy consumption, can reduce noise again; To the tracking of compressor refrigerating capacity, detect automatically, make circular flow keep mating and can strengthening in real time the relieving capacity of compressor all the time with refrigerating capacity, with the running on the lower load coupling, the annual power saving rate can reach 42% more accurately; By automatic measurement to environmental parameter, change the rotating speed of blower fan automatically, the temperature of conditioned area is remained in the set point, not only reduced noise, power saving rate can reach 50%; To the variable frequency control of pump motor, reduced the impact of electric motor starting to electrical network, reduced the vibrations and the noise of water pump, the useful life of prolongation equipment, setting by simple parameter, make control system Automatic Optimal energy consumption of electrical machinery, is that motor is in the operation of maximal efficiency place.
Description of drawings:
Fig. 1: the utility model is to rotation speed of fan control apparatus schematic diagram;
Fig. 2: the utility model is to circulation-water pump electric machine control principle figure;
Fig. 3: electrical diagram of the present utility model.
Embodiment:
Embodiment 1:
As shown in Figure 1, a kind of intelligent energy-saving device, it comprises intelligent frequency convertor, potentiometer, blower fan and start stop switch; Intelligent frequency convertor is connected with the motor of blower fan; Wherein two control ends 2,4 of intelligent frequency converter link together and then are connected with two stiff ends of potentiometer respectively with control end 1; The control end 3 of intelligent frequency converter is connected with the change of potentiometer resistance end; The motor M of air-conditioning draught fan is connected with intelligent frequency convertor ECO through lead, and intelligent frequency convertor ECO, potentiometer are known technology, here no longer describes in detail.Intelligent frequency convertor is connected with main power source.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 input analog amount is controlled the rotating speed of blower motor, just can reach the optimum organization of energy consumption.
As shown in Figure 3, the basic setting up procedure with analog quantity control is:
(1), in certain room, observes its variations in temperature with an electronic instrument for measuring temperature.
(2), with a start and stop open pipe A control end 5 of intelligent frequency convertor is connected with 9.
(3), be connected to intelligent frequency convertor ECO control end 1,2,3,4 with a potentiometer B greater than 4.7K Ω; Be connected with two stiff ends of potentiometer respectively with control end 1 after wherein control end 2,4 links together; The control end 3 of intelligent frequency converter is connected with the change of potentiometer resistance end.
(4), on input/output board, DIP switch AINI pushes analog quantity voltage (V) input, and P0756 is set at 0.
(5), connect the intelligent frequency convertor main power source, and with the earthing of casing.
(6), parameter P1000 is set at 2 is analog quantity input, control by analog quantity: parameter P0700 is set at 2, 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), nominal parameter on the motor nameplate is input to parameter P0304-P0311;
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;
Normal speed N on the P0304 input motor nameplate;
(8), with P1910 be set at 1 and r1912 be set at default value, promptly press the operation button key, intelligent frequency convertor will be measured stator resistance automatically.
(9), Jiang's start stop switch connects, regulator potentiometer, required frequency when room temperature reaches standard-required.
By above-mentioned simple programmed method, regulate rotating speed of motor, can make the power consumption of motor be in optimal state.
Embodiment 2:
As shown in Figure 2, the difference position of present embodiment and embodiment 1: can only be connected with the motor M of circulating water pump through lead by frequency converter ECO, being connected of intelligent frequency convertor with main power source, be connected with temperature sensor C on the control end 3,4 of intelligent frequency convertor, the control section 5,9 of intelligent frequency convertor is connected to start stop switch A.Wherein intelligent frequency convertor ECO, potentiometer and temperature sensor C are known technology.In the big occasion that gets of range of temperature, the circulating water pump on the heat exchanger in the hotel for example, because the leaving water temperature of boiler just changes the variations in temperature that directly affects 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.
As shown in Figure 3, its operating parameter setting 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), the transducer that feedback signal can correctly be provided is installed on the recirculation water pipeline.
(3), on input/output board, DIP switch pushes ON and P0756 is set at 2, for the signal of analog quantity input I is the one pole feedback signal of 4-20mA.
(4), P1000 is set at 2, promptly represents analog input, 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), with a simple start stop switch A, the control end 5 and 9 of frequency converter is connected and connects.
(7), connect the intelligent frequency convertor main power source, and connect ground wire.
Through after the above-mentioned simple programming, temperature signal feedback sensing amount output analog signal current 0-20mA analog input 2 is set, circulating water pump to be carried out effectively regulated control, the Automatic Optimal energy cost combination reaches purpose of saving.
Energy-saving device of the present utility model passes through the energy consumption Automatic Optimal, and the modulating frequency Automatic Optimal was both capable of reducing energy consumption, can reduce noise again; To the tracking of compressor refrigerating capacity, detect automatically, make circular flow keep mating and can strengthening in real time the relieving capacity of compressor all the time with refrigerating capacity, with the running on the lower load coupling, the annual power saving rate can reach 42% more accurately; By automatic measurement to environmental parameter, change the rotating speed of blower fan automatically, the temperature of conditioned area is remained in the set point, not only reduced noise, power saving rate can reach 50%; To the variable frequency control of pump motor, reduced the impact of electric motor starting to electrical network, reduced the vibrations and the noise of water pump, the useful life of prolongation equipment, setting by simple parameter, make control system Automatic Optimal energy consumption of electrical machinery, is that motor is in the operation of maximal efficiency place.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.

Claims (2)

1. intelligent energy-saving device, it is characterized in that: this intelligent energy-saving device comprises intelligent frequency convertor, potentiometer, blower fan, circulating water pump and start stop switch; Described intelligent frequency convertor is connected with the motor of blower fan or circulating water pump; Wherein two control ends 2,4 of described intelligent frequency converter link together and then are connected with two stiff ends of described potentiometer respectively with control end 1; The control end 3 of described intelligent frequency converter is connected with the change of described potentiometer resistance end; Other of described intelligent frequency-conversion controller two control ends 5,9 are connected with described start stop switch.
2. intelligent energy-saving device according to claim 1 is characterized in that: this intelligent energy-saving device also comprises temperature sensor; Described temperature sensor is connected with the control end 3,4 of described intelligent frequency convertor.
CN2010202577792U 2010-07-14 2010-07-14 Intelligent power-saving equipment Expired - Fee Related CN201717828U (en)

Priority Applications (1)

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CN2010202577792U CN201717828U (en) 2010-07-14 2010-07-14 Intelligent power-saving equipment

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Application Number Priority Date Filing Date Title
CN2010202577792U CN201717828U (en) 2010-07-14 2010-07-14 Intelligent power-saving equipment

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CN201717828U true CN201717828U (en) 2011-01-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108872850A (en) * 2017-10-25 2018-11-23 中国石油化工股份有限公司 A kind of electrical machine energy-saving key technology test platform

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108872850A (en) * 2017-10-25 2018-11-23 中国石油化工股份有限公司 A kind of electrical machine energy-saving key technology test platform

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C14 Grant of patent or utility model
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110119

Termination date: 20160714

CF01 Termination of patent right due to non-payment of annual fee