CN201663573U

CN201663573U - Intelligent one-for-two water pump electricity saver

Info

Publication number: CN201663573U
Application number: CN2009202019810U
Authority: CN
Inventors: 徐建康
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-10
Filing date: 2009-12-10
Publication date: 2010-12-01
Anticipated expiration: 2019-12-10

Abstract

The utility model discloses an intelligent one-for-two water pump electricity saver, which belongs to the technical field of water pumps. The electricity saver comprises a cabinet, a main loop circuit, a secondary control loop circuit and a detection circuit; the main loop circuit comprises an air switch QF, an alternating-current contactor KM1, an alternating-current contactor KM2, an alternating-current contactor KM3, an alternating-current contactor KM4, an alternating-current contactor KM5, an alternating-current contactor KM6, a filter LC, an inverter BP and wires; and the secondary control loop circuit and the detection circuit comprise a detection signal 200, fuses, a push-button SB1, a fan FS, a tilt switch SA1, indicator lights, inverter BP control terminals, alternating-current contactor coils, alternating-current relay coils, a direct-current relay KA5, normally opened and normally closed contacts and wires. The utility model has the advantages of switching, electric energy saving and higher control precision.

Description

Intelligence one drag two water pump electricity-saving appliance

Technical field

The utility model discloses a kind of intelligent one drag two water pump electricity-saving appliance, belong to the pump technology field.

Background technology

Usually the same pipe network of water pump that is using in enterprise has many water pumps, and these equipment all compare machinery, belong to constant torque load.There is instantaneous large-current to produce during startup, has a strong impact on the stability and the useful life of equipment.Because the equipment motor does not allow frequent starting, so cause when hanging down with medium temperature, motor wastes electric energy also at capacity operation.Because same pipe network has many water pumps, each water pump again can not long-time running, get frequent cut-in stand-by water pump, and that general same pipe network reducing energy consumption only need be controlled a pump energy saving is just passable, so, just electricity-saving appliance must two water pumps of switching controls, in the time of just can not making the cut-in stand-by water pump and the electricity-saving appliance of stopping using and being adorned.

The utility model content

In order to address the above problem, the utility model provides a kind of and can switch, again can saves energy, improve the intelligent one drag two water pump electricity-saving appliance of control precision.

The technical solution adopted in the utility model is: a kind of intelligent one drag two water pump electricity-saving appliance is characterized in that: comprise by cabinet, main loop circuit, secondary control loop circuit, testing circuit and forming;

Main loop circuit is made up of air switch QF, A.C. contactor KM1, A.C. contactor KM2, A.C. contactor KM3, A.C. contactor KM4, A.C. contactor KM5, A.C. contactor KM6, filter LC, frequency converter B P and lead;

No. 1 three phase mains is by lead, binding post (R1, S1, T1), A.C. contactor KM3 and No. 1 power output terminal (U1, V1, W1);

No. 1 three phase mains is by lead, binding post (R1, S1, T1), A.C. contactor KM5, air switch QF, filter LC, frequency converter B P, A.C. contactor KM1 and No. 1 power output terminal (U1, V1, W1);

No. 2 three phase mains are by lead, binding post (R2, S2, T2), A.C. contactor KM4 and No. 2 power output terminals (U2, V2, W2);

No. 2 three phase mains are by lead, binding post (R2, S2, T2), A.C. contactor KM6, air switch QF, filter LC, frequency converter B P, A.C. contactor KM2 and No. 2 power output terminals (U2, V2, W2);

Secondary control loop circuit and testing circuit are made up of detection signal 200, fuse (FU, FU1, FU2, FU3), button SB1, fan FS, driving switch SA1, indicator light (HG1, HG2, HG3, HG4, HR1), frequency converter B P control terminal, ac contactor coil (KM1, KM2, KM3, KM4, KM5, KM6), AC relay coil (KA1, KA2, KA3, KA4), direct current relay KA5, normally-open normally-close contact and lead;

Phase line T often opens with KM2 by lead, fuse FU3, KM1 and often opens parallel connection, fan FS links to each other with zero line N;

Phase line R by lead, fuse FU, KM1 are normally closed, KM4 is normally closed, KA2 often opens often opens parallel connection with KA5, the KM2 coil links to each other with zero line N with No. 2 energy-saving indicating lamp HG2 parallel connection;

Phase line R by lead, fuse FU, KM2 are normally closed, KM3 is normally closed, KA1 often opens often opens parallel connection with KA5, the KM1 coil links to each other with zero line N with No. 1 energy-saving indicating lamp HG1 parallel connection;

Phase line R by lead, fuse FU, driving switch SA1, KA3 often open, the lead-out terminal able to programme of KA1 coil, frequency converter B P is normally closed links to each other with zero line N;

Phase line R by lead, fuse FU, driving switch SA1, KA4 often open, the lead-out terminal able to programme of KA2 coil, frequency converter B P is normally closed links to each other with zero line N;

Phase line R1 by lead, fuse FU1, driving switch SA1, KM1 are normally closed, KA3 is normally closed often opens parallel connection with KM3, the KM3 coil links to each other with zero line N with No. 1 power frequency indicator light HG3 parallel connection;

Phase line R1 passes through lead, fuse FU1, driving switch SA1, KM3 are normally closed, KM6 is normally closed, the KM5 coil links to each other with zero line N;

Phase line R2 by lead, fuse FU2, driving switch SA1, KM2 are normally closed, KA4 is normally closed often opens parallel connection with KM4, the KM4 coil links to each other with zero line N with No. 2 power frequency indicator light HG4 parallel connection;

Phase line R21 passes through lead, fuse FU2, driving switch SA1, KM4 are normally closed, KM5 is normally closed, the KM6 coil links to each other with zero line N;

Detection signal links to each other with frequency converter B P analog input terminal by lead;

No. 1 starting-up signal links to each other with zero line N by lead, KA3 coil;

No. 2 starting-up signal links to each other with zero line N by lead, KA4 coil.

Advantage of the present utility model: 1, utilize the frequency converter defencive function, improve and to possess protections such as current limit, overvoltage stall protection, short circuit, overcurrent, overload, overvoltage.Also utilize converter technique smoothly to start, eliminate high voltage when starting, output voltage is adjusted in the impact of big electric current automatically, even there is bigger fluctuation in the input electrical network, output voltage also remains unchanged substantially, has saved energy consumption greatly, has also protected the loss of motor.Effectively prevent mechanical wear, prolong the life-span that motor uses, the influence of instantaneous attitude torque.

2, utilize the closed-loop control of PID adjuster, the utilization micro-computer technology, energy-saving control system is gathered its temperature and pressure parameter, and is dynamic from the motion tracking water pump, regulates its rotating speed, energy-conservation to greatest extent to realize water pump system.

3, adopt liquid crystal character, graphical display, the Chinese and English display mode is set at any time, man-machine interface close friend, and the interaction of double-display screen numeric keypad is inquired about, switching controls is set, and this machine, remote operation are freely selected, and control mode is flexibly, conveniently.

4, adopt electricity drag control technology switch two water pumps that selection controlled wherein one carry out energy-saving run, another carries out power frequency operation.

Method of operation is: (1), when the electricity-saving appliance gear is got to bypass, one road power supply is normally closed normally closed through KM1 by driving switch, and normally closed by KA3, it is electric that the KM3 coil is got, and HG3 is bright for 1# pump bypass indicator light, and KM3 often opens self-locking, and the 1# pump carries out power frequency operation.Another road power supply is normally closed normally closed through KM2 by driving switch, and normally closed that coil KM4 is got is electric by KA4, and HG4 is bright for 2# pump bypass indicator light, and KM4 often opens self-locking, and the 2# pump carries out power frequency operation;

(2), get to 1# when energy-conservation when the electricity-saving appliance gear, the KM5 coil is normally closed through KM3, KM6 is electricly normally closed, starts the 1# pump operation, finish the conversion of star triangle after, give signal of KA3, the KA3 coil gets electric, the KA1 coil through KA3 normally closed also electric, the normal switching of KA1 closed, the KM1 coil gets, HG1 is bright for 1# pump energy-saving indicating lamp, and the 1# pump begins energy-saving run, and 2# is in the power frequency state;

(3), get to 2# when energy-conservation when the electricity-saving appliance gear, the KM6 coil is normally closed through KM4, KM5 is electricly normally closed, starts the 2# pump operation, finish the conversion of star triangle after, give signal of KA4, the KA4 coil gets electric, the KA2 coil through KA4 normally closed also electric, the normal switching of KA2 closed, the KM2 coil gets, HG2 is bright for 2# pump energy-saving indicating lamp, and the 2# pump begins energy-saving run, and 1# is in the power frequency state.No matter that is in and stops resting state, other one all the time can energy-saving run.The awkward situation that can not produce the energy-saving equipment installation and not move.So can guarantee the energy-saving equipment long-time running, guarantee that hydraulic pressure remains constant purpose, also save a large amount of electricity charge spendings.

Below in conjunction with drawings and Examples the utility model is further described in detail, but is not that the interest field that the utility model is claimed is confined in following examples.

Description of drawings

Fig. 1 is a circuit principle structure block diagram of the present utility model;

Fig. 2 is a control circuit principle schematic of the present utility model;

The main circuit principle schematic that Fig. 3 implements for the utility model.

Embodiment

As Fig. 1, Fig. 2, shown in Figure 3, among the figure: QF-air switch, KM-A.C. contactor, the KA-relay, BP-frequency converter, LC-filter, the FU-fuse, SB-button, FS-fan, the SA-driving switch, HR-malfunction indicator lamp, HG-run indicator, the T-phase line, R-phase line, R1-phase line, the R2-phase line, the N-zero line.

Intelligence one drag two water pump electricity-saving appliance comprises by cabinet, main loop circuit, secondary control loop circuit, testing circuit and forming;

This section electrical equipment control theory structure block diagram as shown in Figure 1, comprise frequency converter, transducer, water pump diverter switch, AC reactor, PID adjuster, A/D converter, the AC reactor links to each other with frequency converter by the power supply input, the PID adjuster by A/D converter set point after transducer is connected to the water pump diverter switch, the PID adjuster by A/D converter set point after frequency converter output.Operation principle is: frequency converter is as the core control part of whole system.Finish the sampling of analog quantity, computing and output, and finish the acceleration and the deceleration of control system.The demonstration of default temperature and feedback temperature and the detection of fault are judged, tasks such as processing and warning.

System comes the running speed of the water pump of control of conversion operation according to the deviation of design temperature and feedback temperature by the analog signal of temperature sensor output.Thereby the heat that goes out that changes water pump reaches the purpose of regulating the heat supply balance.When design temperature was higher than actual temperature, the running frequency of frequency conversion unit can constantly rise, and until maintaining the upper limiting frequency operation, made temperature rise to need of work.When design temperature is lower than actual temperature, the running frequency of frequency converter can constantly descend, and until lower limit work, reaches purpose of energy saving.

Claims

1. an intelligent one drag two water pump electricity-saving appliance is characterized in that: comprise by cabinet, main loop circuit, secondary control loop circuit, testing circuit and forming;

Phase line R2 by lead, fuse FU2, driving switch SA1, KM2 are normally closed, KA4 is normally closed often opens parallel connection with KM4, the KM4 coil links to each other with zero line N again with No. 2 power frequency indicator light HG4 parallel connection;