CN2518251Y

CN2518251Y - Intelligence monitor of motor submersible pump

Info

Publication number: CN2518251Y
Application number: CN 01273538
Authority: CN
Inventors: 朱友和; 张远志
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-27
Filing date: 2001-12-27
Publication date: 2002-10-23
Anticipated expiration: 2011-12-27

Abstract

The utility model relates to a motor submersible pump intelligent monitor, which consists of a shell body (21). Three phase power posts (1), (2), (3), three phase load posts (10), (11), (12), a control circuit inside the shell body (21) are arranged outside the shell body. The control circuit consists of a contactor (23), an integrated circuit core board (24), a phase failure delay potentiometers (8), an overload delay potentiometer (13), a leakage volume adjustment potentiometer (9), a current adjustment potentiometer (14) and a shell (21) grounding line (22). The motor submersible pump intelligent monitor of the utility model can ensure that the farmers who are short of electricity knowledge can use the electricity safely in places such as farms, fish ponds and water stations, and ensure the security of personnel, farm animals, water products, property and equipments, thus effectively improving production efficiency.

Description

Motor submersible pump intelligent monitor

Technical field

The utility model relates to a kind of motor submersible pump intelligent monitor, particularly is applicable to the circuit monitoring of the motor submersible pump that occasions such as farmland, fish pond, plumbing station are used.

Technical background

At present, be used for occasions such as farmland, fish pond, plumbing station and carry out the employed motor submersible pump of plumbing, often because of the circuit phase failure, the overload short circuit, infiltration electric leakages etc. are former thereby burnt, and the lighter influences production, and weight person causes electric shocks such as personnel, farm animal, aquatic products thing dead; Add the knowledge poorness of wide farmers to electricity, operation so always is very much the raising that influences productivity in decades.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of motor submersible pump intelligent monitor is provided, make the wide farmers that lacks electricity consumption knowledge, the peasant household that particularly needs the plumbing operation also can safety utilization of electric power, and the life security of assurance personnel, farm animal, aquatic products thing.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: it comprises three phase mains binding post, threephase load binding post, the interior control circuit of housing that housing, housing are provided with outward, and control circuit comprises contactor, integrated circuit central layer, phase failure time-delay potentiometer, overload time-delay potentiometer, electrical leakage quantity adjustment potentiometer, electric current adjustment potentiometer; The frame ground line.

The utility model is finished like this:

1, three phase mains enters contactor through binding post;

2, contactor adhesive three phase mains passes the broken phase current instrument transformer, the overload current instrument transformer, and leakage current transformer is to the load wiring post, up to load motor;

3, when the circuit phase failure, overload short circuit, infiltration electric leakage situation occurring, integrated circuit sends halt instruction to contactor;

4, iron-clad body institute earth connection is provided with for preventing that the iron-clad body is charged, answers reliable ground.

The utility model motor submersible pump intelligent monitor can guarantee to lack the wide farmers of electric knowledge and give place safety utilizations of electric power such as farmland, fish pond, plumbing station, and the safety of support personnel, farm animal, aquatic products thing, property equipment, improve productivity effect effectively.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram

Fig. 2 is the utility model embodiment theory diagram

Fig. 3 is the utility model embodiment control circuit schematic diagram

Specific embodiments

As Fig. 1,2, the utility model embodiment shown in 3, be labeled as 4 watch-dog iron-clad body 21 shells, the upper end is equipped with three and is advanced red as fire look binding

post

1,2,3, three load black binding posts 10 that fire are equipped with in the lower end, 11,12, three phase mains red led 18 is equipped with in front plate face top, 19,20, middle below is equipped with and is started the green switch 17 of operation, red switch 5 out of service, leak(age) test red switch 7, normal operation green indicating lamp 16, phase failure red led 6, overload red led 15, electrical leakage quantity is adjusted potentiometer 9, electric current is adjusted potentiometer 14, potentiometer 8 is adjusted in phase failure time-delay, and potentiometer 13, iron-clad body earth connection 22 are adjusted in the overload time-delay.

Contactor 23 and integrated circuit central layer 24 are housed in the watch-dog iron-clad body 21; be divided into 13 little function parallel circuits; each function title is followed successively by: contactor I, broken phase current instrument transformer II, overload current instrument transformer III, leakage current transformer IV, startup-shutdown control circuit V, relay VI, phase failure potential generation circuit VII, integrated circuit control output VIII, overload level produce circuit I X, power circuit X, thyristor gating circuit XI, rectification circuit XII, relay XIII composition, and the principle of its intelligent monitoring is finished like this:

1, when three phase mains through red binding

post

1,2,3, when three phase mains red led 18,19,20 entered contactor, three phase mains red led 18,19,20 was bright entirely.

When 2, pressing starting switch 17, contactor adhesive three phase mains passes the broken phase current instrument transformer, the overload current instrument transformer, and leakage current transformer is to load black binding

post

10,11,12, up to load motor D.

3, broken phase current instrument transformer, the broken phase current of coupling is delivered to phase failure potential generation circuit, the potential difference that is produced is given relay through integrated circuit control output VIII, after again through the startup-shutdown control circuit, send halt instruction to contactor.

4, the big electric current that is coupled to of overload current instrument transformer is delivered to overload level and is produced circuit, and the potential difference that is produced is exported to relay through integrated circuit VIII control, delivers to the startup-shutdown control circuit at last again, sends halt instruction to contactor.Power circuit provides DC power supply for phase failure potential generation circuit, overload level generation circuit, integrated controlling output circuit, relay.

5, the leakage current that is coupled to of leakage current transformer is delivered to controllable silicon electric shock road; make the controllable silicon triggering and conducting make the relay adhesive again; deliver to the startup-shutdown control circuit again, send halt instruction to contactor, rectification circuit provides DC power supply to thyristor gating circuit.

6, the startup-shutdown control circuit can manual and automatic startup-shutdown control.

7, iron-clad body institute earth connection 22 is answered reliable ground for preventing iron-clad body 21 charged settings.

13 smart circuits in the watch-dog iron-clad body 21 are made up of following element:

Protective tube BX1, BX2, piezo-resistance V1, V2, capacitor C 1, C2, C3, C4, C5, C6, C7, C8, C9, resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, diode D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, voltage-stabiliser tube DW, light-emitting diode (indicator light) LED1, LED2, LED3, triode BG1, BG2, BG3, rectifier bridge heap QD, controllable silicon SCR 1, SCR2, potentiometer W1, W2, W3, W4, integrated circuit (IC) (NE555), current transformer LH1, LH2, LH3, LH4, LH5, contactor CJ, coil C, main contact (a, c, e, f, h, j), auxiliary contact (d, i), relay J 1, J2, J1-1 is the J1 normally-closed contact, J2-1 is the J2 normally-closed contact, reference point y, z, starting switch QA, shutdown switch TA, transformer T, leak(age) test K switch, three phase

mains indicator light

18,19,20, the red binding post 1 of three phase mains, 2,3, threephase load black binding

post

10,11,12.

These elements are formed six intelligent monitor systems of cost monitoring device respectively: external power turnover intelligent monitor system, startup-shutdown intelligent monitor system; interior electric supply system; the open phase protection intelligent monitor system, overcurrent protection intelligent monitor system, earth leakage protective intelligent monitor system.

Each smart circuit operation principle is as follows:

1, motor submersible pump external power turnover operation principle

This circuit is by the red binding

post

1,2,3 of element, power supply red led 18,19,20,

black binding post

10,11,12, contactor CJ, current transformer LH1, LH2, LH3, LH4, LH5 form, operation principle is to be like this: three phase mains is to pass through red binding

post

1,2,3 successively, power supply red led 18,19,20, contactor CJ, current transformer LH1, LH2, LH3, LH4, LH5 arrive load black binding

post

10,11,12, and the three-phase plug-in strip three phase mains red led 18,19,20 that at this moment closes is bright entirely.

2, normally move the startup-shutdown operation principle

This circuit is by the green run switch 17 that starts of element QA, the green run indicator 16 of LED3, the red switch 5 out of service of TA, contactor CJ forms, operation principle is: press QA and start the green switch 17 of operation, the contactor coil C adhesive of switching on, the auxiliary contact d of contactor CJ, the I self-locking, the main contact a of contactor CJ, e, c and f, h, j is connected, powering load, at this moment the green run indicator of LED3 is bright is normal, presses TA switch 5 out of service, contactor coil C opens circuit and trips, main noddle on contactor a, e, c and f, h, j disconnects and the cut-out three phase mains.

3, power supply power supply the principle in the monitor circuit

This circuit is by element contactor CJ; main contact f; h; transformer T; protective tube BX1; piezo-resistance V1; capacitor C 6, resistance R 12, LED 3 16 is formed; its operation principle is: by main noddle on contactor f; h draws 380 volts of alternating voltages through protective tube BX1; piezo-resistance V1 piles the QD rectification through rectifier bridge again by 15 volts of alternating voltages of secondary output to the elementary step-down of transformer T, capacitor C 6 filtering provide DC power supply to circuit; LED 3; resistance R 12 is formed operation, and it is bright that indication promptly moves green indicating lamp 16, the protective tube BX1 in the circuit; piezo-resistance V1 plays circuit protection and anti-lightning strike.

4, overcurrent protection, time-delay, indicating circuit operation principle

This circuit is adjusted potentiometer W3 by element current, overload time-delay potentiometer W1, overload red led LED2 15, IC integrated circuit, current transformer LH4, diode D4, D7, capacitor C 4, C5, C7, resistance R 5, R8, R9, R10, R11, relay J 1, relay normally-closed contact J1-1, contactor CJ coil C, voltage-stabiliser tube DW forms.Its operation principle is: transfer electric current to adjust potentiometer W3 14, make overload red led LED2 15 glittering, again to the directional trim that does not work clockwise, overload red led LED2 15 is not worked, this moment integrated circuit (IC) k, the current potential of o pin makes integrated circuit (IC) be in critical edges work, the I pin of integrated circuit (IC) is high potential output, work as circuit overloads, the electric current that current transformer LH4 is coupled out is during greater than normal value, electric current is through diode D7, capacitor C 7 rectifying and wave-filterings are delivered to resistance R 11, electric current is adjusted potentiometer W3 dividing potential drop, again through resistance R 10, R9 becomes low level to the I of integrated circuit (IC) pin, make overload red led LED2 15, the current potential of resistance R 8 raises, so LED2 15 is glittering for the overload red led, behind the I pin current potential step-down of integrated circuit (IC), the s of integrated circuit (IC), the high potential of w pin and capacitor C 5 negative poles, through diode D4, resistance R 5, overload time-delay potentiometer W1 13 charges to C5 to the I pin electronegative potential of integrated circuit (IC), make the w of integrated circuit (IC), the high potential of s pin and capacitor C 5 negative poles descends, the work of IC integrated circuit, IC integrated circuit t pin is exported high potential by electronegative potential, relay J 1 adhesive, relay normally-closed contact J1-1 disconnects, and contactor CJ coil C loses voltage and cuts off the electricity supply.Adjust overload time-delay potentiometer W1 and can change the charging interval, reach the overload delay effect.During load variations, the electric current that overload current instrument transformer LH4 is coupled out is also inequality, adjust electric current and adjust potentiometer W3 14, can make the k of IC integrated circuit, the current potential of o pin under different current conditions, keep identical current potential, thereby realize the electric current adjustment, capacitor C 4 is k, the o pin smothing filtering electric capacity of integrated circuit (IC), DW is the n pin voltage-stabiliser tube of integrated circuit (IC), D6 is w, the s pin diode of integrated circuit (IC), positive source connects m, q, the u pin of integrated circuit (IC), and negative pole connects the r pin of integrated circuit (IC).

5, open phase protection, time-delay, indicating circuit operation principle

This circuit is by element current instrument transformer LH1, LH2, LH3, diode D1, D2, D3, D5, triode BG1, BG2, BG3, reference point y, z, phase failure red led LED1 6, phase failure time-delay potentiometer W2 8, integrated circuit (IC), relay J 1, relay normally-closed contact J1-1, contactor CJ coil C forms.Its operation principle is: current transformer LH1, LH2, the electric current that LH3 is coupled out, through diode D1, D2, D3, capacitor C 1, C2, behind the C3 rectifying and wave-filtering again through resistance R 1, R2, R3 delivers to triode BG1, BG2, BG3, make triode BG1, BG2, the BG3 conducting, because the metering function reference point y point of resistance R 6, be low-voltage between the z point, phase failure red led LED1 does not work, when any phase phase failure of three-phase, current transformer LH1, LH2, LH3 will have one to lose couple current, triode BG1, BG2, there is one to end among the BG3, because triode BG1, BG2, BG3 is a series circuit, one when not conducting, three triode BG1, BG2, BG3 will all quit work, the current potential that reference point z is ordered descends, reference point y point to voltage between reference point z point raises, by LED1, phase failure red led LED1 6 in the phase failure indicating circuit that R4 forms is bright, the s of integrated circuit (IC), the current potential of w pin and capacitor C 5 negative poles descends, integrated circuit (IC) work, the t pin of integrated circuit (IC) is exported high potential by electronegative potential, relay J 1 adhesive, relay normally-closed contact J1-1 disconnects, contactor coil C loses voltage and cuts off the electricity supply, and adjusts phase failure time-delay potentiometer W2 and can change the charging interval and realize phase failure time-delay.

6, earth leakage protective, electrical leakage quantity, leak(age) test switching circuit operation principle

This circuit is by element current instrument transformer LH5, resistance R 13, R14, R15, R16, R17, R18, R19, capacitor C 8, C9, controllable silicon SCR 1, SCR2, diode D8, D9, D10, D11, relay J 2, relay normally-closed contact J2-1, contactor CJ coil C, electrical leakage quantity potentiometer W4, protective tube BX2, piezo-resistance V2, leak(age) test red switch 7 is formed.Its operation principle is: when three power lines pass current transformer LH5 absence-of-ground leakage simultaneously, the three-phase current waveform offsets, current transformer LH5 does not have couple current, wherein one when leaking electricity mutually, the waveform electric current that current transformer LH5 is coupled to is by resistance R 13, after R14 gives capacitor C 8 filtering, wherein one the tunnel give controllable silicon SCR 2, another road is through capacitor C 9, resistance R 15 is delivered to controllable silicon SCR 1, controllable silicon SCR 1, the SCR2 triggering and conducting, wherein resistance R 17, R18 is a divider resistance, and R16 is inclined to one side value resistance, diode D8, D9, D10, D11 forms bridge rectifier, relay J 2 is connected in the circuit, controllable silicon SCR 1, be connected on the relay J 2 in the circuit after the SCR2 conducting, because of electric current increases adhesive, relay auxiliary contact J2-1 disconnects, and contactor coil C open circuit is cut off the electricity supply; Adjust electrical leakage quantity potentiometer W4; can change the voltage amplitude that current transformer LH5 is coupled out; thereby can detect corresponding electrical leakage quantity; when electrical leakage quantity potentiometer W4 resistance value was set to zero, current signal was by short circuit, but the submersible pump winding test that leaks electricity in the test water; press leak(age) test red switch 7; repeat the above course of work and cut off the electricity supply, protective tube BX2 and piezo-resistance V2 can play leakage circuit protection and anti-lightning strike effect.

The utility model motor submersible pump intelligent monitor has following beneficial effect:

1, start, shutdown monitoring automatically:

The green switch 17 of start operation normally moves green indicating lamp 16, and red switch out of service 5 is common to be formed start and shut down supervisory control systems, pressing the green switch 17 of start operation, and operation green indicating lamp 16 is bright to be normal; Press red switch 5 out of service, just can shut down;

2, the phase failure is monitored automatically:

Phase failure red led 6, phase failure time-delay potentiometer 8 is formed the open phase protection supervisory control system.In service when open phase fault is arranged, phase failure red led 6 is bright, the time automatic trip that sets by phase failure time-delay potentiometer 8; Phase failure time-delay can be checked the use of also can meeting an urgent need of circuit loose contact fault.

3, overload monitoring automatically:

Potentiometer 13 is adjusted in overload red led 15, overload time-delay, electric current is adjusted potentiometer 14 and formed the overload protection supervisory control system.When the electric current in circuit in service occurred greater than the electric current of electric current adjustment potentiometer 14 settings, overload red led 15 was glittering, and trips in the time of overload time-delay adjustment potentiometer 13 settings.

4, infiltration electric leakage monitoring automatically:

Leak(age) test red switch 17, electrical leakage quantity are adjusted the potentiometer 9 common earth leakage protective supervisory control systems of forming, and when regularly pressing leak(age) test red switch 17 at ordinary times, can tripping, it is normal to be considered as; Pointed green area when electrical leakage quantity adjustment potentiometer 9 during operation does not trip to normally, when green area tripping operation pointed yellow area does not just trip, illustrates that the submersible pump insulation resistance descends; When yellow area tripping operation pointed red area does not just trip; the submersible pump electric leakage of seriously seeping water is described, only makes the usefulness whether the immersible pump electric pump in the test water burns in the red area, do not have creepage protection function: forbid to use; submersible pump should in time dry or repair, in order to avoid burn.

5, the obviously use of motor submersible pump intelligent monitor, the wide farmers that can guarantee to lack electric knowledge is being given place safety utilizations of electric power such as farmland, fish pond, plumbing station, and the safety of support personnel, farm animal, aquatic products thing, property equipment, improve productivity effect effectively.

Claims

1, motor submersible pump intelligent monitor, it is characterized in that: it comprises the control circuit in housing (21), the outer three phase mains binding post (1) that is provided with of housing (21), (2), (3), threephase load binding post (10), (11), (12), the housing (21), and control circuit comprises that contactor (23), integrated circuit central layer (24), phase failure time-delay potentiometer (8), overload time-delay potentiometer (13), electrical leakage quantity are adjusted potentiometer (9), electric current is adjusted potentiometer (14); Housing (21) earth connection (22).

2, motor submersible pump intelligent monitor as claimed in claim 1 is characterized in that: control circuit passes in and out intelligent monitor system, startup-shutdown intelligent monitor system, interior electric supply system, open phase protection intelligent monitor system, overcurrent protection intelligent monitor system, earth leakage protective intelligent monitor system by external power and forms.

3, motor submersible pump intelligent monitor as claimed in claim 2, it is characterized in that: external power turnover intelligent monitor system is by element: the red binding post (1) of three phase mains, (2), (3), three phase mains red led (18), (19), (20), threephase load black binding post (10), (11), (12), contactor CJ, current transformer LH1, LH2, LH3, LH4, LH5 forms, three phase mains is to pass through red binding post (1) successively, (2), (3), power supply red led (18), (19), (20), contactor CJ, current transformer LH1, LH2, LH3, LH4, LH5 arrives threephase load black binding post (10), (11), (12).

4, motor submersible pump intelligent monitor as claimed in claim 2; it is characterized in that: normally move the startup-shutdown intelligent monitor system by element: the green run switch QA (17) of startup; red switch TA out of service (5), green indicating lamp (16), contactor CJ coil C forms.

5, motor submersible pump intelligent monitor as claimed in claim 2, it is characterized in that: electric supply system is by element in the intelligent monitor circuit: main noddle on contactor f, h, transformer T, protective tube BX1, rectifier bridge heap QD, capacitor C 6, LED 3 (16), resistance R 12 is formed, by main noddle on contactor f, h draws 380 volts of alternating voltages through protective tube BX1, piezo-resistance V1, and T is elementary to transformer, then by 15 volts of alternating currents of T level output of transformer, through rectifier bridge heap QD rectification, capacitor C 6 rectifying and wave-filterings are given circuit supply again, LED 3, resistance R 12 is formed the operation indication.

6, motor submersible pump intelligent monitor as claimed in claim 2; it is characterized in that: the open phase protection intelligent monitor system is by element: current transformer LH1, LH2, LH3, diode D1, D2, D3, D5; capacitor C 1, C2, C3, C5; resistance R 1, R2, R3, R4, R6, R7; triode BG1, BG2, BG3; reference point y, z '; phase failure red led LED1 (6); phase failure time-delay potentiometer W2 (8); integrated circuit (IC); relay J 1, relay normally-closed contact J1-1, contactor CJ coil C forms.

7, motor submersible pump intelligent monitor as claimed in claim 2 is characterized in that: the earth leakage protective intelligent monitor system is by element: current transformer LH5, resistance R 13, R14, R15, R16, R17, R18, R19; capacitor C 8, C9; controllable silicon SCR 1, SCR2, diode D8, D9, D10, D11, relay J 2; relay normally-closed contact J2-1; contactor CJ coil C, electrical leakage quantity potentiometer W4, protective tube BX2; piezo-resistance V2, leak(age) test red switch (7) is formed.

8, motor submersible pump intelligent monitor as claimed in claim 2 is characterized in that: the overcurrent protection intelligent monitor system is by element: electric current is adjusted potentiometer W3, overload time-delay potentiometer W1; overload red led LED2 (15); the IC integrated circuit, current transformer LH4, diode D4, D7; capacitor C 4, C5, C7; resistance R 5, R8, R9, R10, R11, relay J 1, relay normally-closed contact J1-1; contactor CJ coil C, voltage-stabiliser tube DW forms.