CN2057430U

CN2057430U - Auto-controlled water pump for rural household running water

Info

Publication number: CN2057430U
Application number: CN 89211885
Authority: CN
Inventors: 罗国和
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-05
Filing date: 1989-12-05
Publication date: 1990-05-23

Abstract

The utility model relates to a minitype automatic controlled water supply facility which is applied to the area of a rural area having no tap water or the residential area of a city whose tap water pressure is deficient. The minitype automatic controlled water supply facility which is applied to the area of a rural area having no tap water or the residential area of a city whose tap water pressure is deficient is composed of a water pump, a pipeline, a non-return valve, a tap, an automatic controller, etc. When the tap is opened or closed, the water pump can automatically work or stop, wherein, the automatic controller has reliable personal safety protection, water pump no-load and overload protection, power source overvoltage automatic protection, and frequent starting automatic protection. The utility model has convenient operation, simple structure, stable and reliable performance, and long service life. The utility model is the tap water supply equipment which is convenient, high-efficient, and safe.

Description

Auto-controlled water pump for rural household running water

The utility model relates to tap water automatic controlled water pump technical field, and it is the small-sized automatic water-supply facility that the urban family of a kind of rural area of suitable no tap water and tap water pressure deficiency uses.

Up to now, China rural households many local use the hand well pumps to supply water, waste time and energy, flow is little, lift is low, can not form tap water.Use the light water water supplying pump, though can form tap water, need build water tower in addition, floor space is big, expense is high, often because of voltage instability or upset operation (as frequent starting) water pump and the casualty accident that shocks by electricity takes place to damage, nor can realize automatic control.The city of hydraulic pressure deficiency; use the pressurization of building water supply device to supply water now; but it is complicated to have volume is big, cost is high corollary equipments such as air pressure tank, installation; its electrical appliance part does not have overvoltage, unloaded overload, short circuit, frequent starting defencive function, because of directly relatively poor for 220 volts of forceful electric power do control power supplys, safety with the city.The purpose of this utility model be provide for the deficiency that overcomes above water facilities that a kind of automaticity height, safe and reliable, novel structure, cost are low, simple installation, simple to operate, the tap water automatic controlled water pump that adopts 12 volts of dc low-voltage microcomputer controlled power supplies.

The utility model is made up of water pump, water supply mechanism and self-con-tained unit.Water supply mechanism is made of water supply line, flap valve, water tap, and wherein water supply line is divided into two sections, only with a flap valve that connects the two sections feed pipe.Self-con-tained unit is by the automatic control electronic circuit; formations such as water level pressure switch and level pressure sampling pipe, electro connecting pressure gauge and pipeline pressure sampling pipe; wherein electronic circuit connects into on-off circuit, triggering and reset circuit by power transformer, 555 integrated circuits, transistor, relay, A.C. contactor, commutation diode, protector, electric capacity, resistance, switch etc.; excess voltage protection, no-load protection circuit, overload, short-circuit protection, frequent starting holding circuit etc.

Structure of the present utility model and operating principle are as follows:

Fig. 1 self-con-tained unit circuit theory diagrams

Fig. 2 tap water automatic controlled water pump structural representation

Self-con-tained unit circuit as shown in Figure 1, its toggle switch K2-1, water level pressure switch XT, piezo-resistance R8, after the protector 3RD series connection and city joins for AC power; Transformer B's is elementary in parallel with piezo-resistance R8, and with 220 volts of single-phase city power supply step-downs, through diode D1, D2, capacitor C1, C2 full-wave rectification are exported 12 volts of direct current voltages as the self-con-tained unit power supply after the electrochemical capacitor C3 filtering from its output by transformer B. The V of piezo-resistance R8 is nominally 360～471K.

By electro connecting pressure gauge yT, resistor R1, R2, R3, R4, the normally opened contact J1-1 of relay J, IC form to trigger and reset circuit, wherein R1, R2, R3, an end parallel connection join through protector 2RD and transformer output; The other end of R1 is connected with the upper limit contact yT2 of electro connecting pressure gauge yT, the other end of R2 with connect power cathode after the end of normally opened contact J1-1, the R4 of relay " J " is connected, IC can adopt 555 integrated circuits, its crus secunda, the 6th pin are connected between " R2 " and " J1-1 ", the 8th pin joins with the other end of " R3 ", give the on-off circuit trigger voltage during its tripod output high level, provide resetting voltage to on-off circuit during output low level. The ratio of the resistance value of R1, R2, R3, R4 is 1:10:0.00068:2.

Constitute the on-off circuit of self-con-tained unit by resistor R 5 and transistor BG1 series connection, the upper end of R5 is connected with the 3rd pin of " IC ", and the b utmost point of the lower end of R5 and BG1 joins, and the C utmost point of BG1 is succeeded electrical equipment J, and the e utmost point connects power cathode.

Constant open contact J2-1, constant close contact J2-2 by relay, electrochemical capacitor C4, resistor R 6, R7, transistor BG2 constitute the frequent starting holding circuit of self-con-tained unit, wherein relay normally open contact J2-1 through protector 2RD and transformer B output join, constant close contact J2-2 saves resistor R6 simultaneously and the positive pole of electrochemical capacitor " C4 " joins, the negative pole of the other end of R6 and electrochemical capacitor C4 all joins with power cathode, makes C4, J2-2, R6 form the upright loop of an arc; Resistor R 7 one ends join with J2-2, R6 simultaneously, and the b utmost point of the other end and transistor BG2 joins, and the e utmost point of BG2 connects power cathode, and the C utmost point links to each other with the 4th pin of " IC ".The capacity of electrochemical capacitor C4 is 0～2200uF.

Be connected on the water level pressure switch in the main power circuit, a termination jail of its movable contact and level pressure probe tube " 8 ", the upper end of its stationary contact and piezo-resistance R8 joins, and plays the no-load protection effect of automatic controlled water pump.

Main power switch adopts the air automatic switch, the pump power circuit, and the self-con-tained unit electric power loop has adopted 1RD, 3RD, three protectors of 2RD respectively in the automatic control loop.

Structure when Fig. 2 represents to utilize well to make the water source, submersible pump " 1 " place the well bottom, and water supply line is divided into " 15 " two sections under " 12 ", only connect with a flap valve.Add a cover cement well lid " 7 " on the well, submersible pump cable " 9 " passes constant open contact CJ1-1, the CJ1-2 last (shown in Figure 1) that well lid is received A.C. contactor from well.Can as required and connect some water taps on the feed pipe epimere " 12 ".As " 10 ", " 13 ".Level pressure probe tube " a 4 " end is connected with the movable contact of water level pressure switch XT, and the other end passes the hypothesis lowest water level " 18 " that well lid reaches well bottom and locates, and level pressure probe tube " 4 " is used plastic flexible pipe.Rubber tube internal pressure probe tube " a 11 " end is securely connected on the movable contact yT3 of electro connecting pressure gauge, and go up on the sampling end of reserving " 11 " at last feed pipe " 12 " in another termination jail.As utilizing the tap water of hydraulic pressure deficiency to make the water source, other are identical then to store a certain amount of tap water replacement well with the ground cement reservoir, also can be equipped with water tank as shown in phantom in Figure 2 on the roof of high-rise building in case of necessity.

The course of work of the present utility model is: self-con-tained unit is installed in (as shown in Figure 1) between city's power supply source and the water pump, K1, K2-1 close a switch, connect power supply, transformer B with city's voltage supplied step-down after crystal diode D1, D2 rectification, electrochemical capacitor C3 filtering provide 12 volts of dc sources; The triggering reset circuit of forming by resistor R 1, R2, R4, electro connecting pressure gauge, 555 ICs (following simple IC); With 12 volts of DC voltages through resistor R 4, electro connecting pressure gauge yT(is hereinafter to be referred as yT) movable contact yT3, lower limit break yT1 provides negative trigger voltage to trigger electrode 2 pin of IC and the utmost point 6 pin that reset, IC is set, 3 pin output high level, saturation current is provided for the b utmost point of transistor BG1 through resistance R 5, make its C-e utmost point conducting, the relay J control coil gets, its electromagnet is with constant open contact J1-1, J2-1, the J3-1 adhesive, constant close contact J2-2 separates, A.C. contactor CJ control coil is got, its electromagnet is with its constant open contact CJ1-1, the CJ1-2 adhesive, CJ2-2 separates, and causes water pump and power connection and enters duty.At this moment, do not open as water tap, then the pressure in the water supply line just increase gradually,, and be delivered on the yT3 of yT by pipeline pressure sampling pipe " 11 ", yT3 is separating pressure lower limit contact yT1 under this pressure effect, but because the J1-1 closure still can provide trigger voltage to IC, so water pump works on, when yT3 moves to predetermined upper pressure limit contact yT2, because of yT3 and yT2 closure, provide resetting voltage through R1, yT2, yT3 to IC the 2nd pin and the 6th pin, IC resets.Therefore, IC the 3rd pin is zero volt of voltage of output low level, the b of BG1 is a no current on extremely, and its C-e utmost point is cut off, through electrical equipment J dead electricity, magnetic force disappears, it is often opened, constant close contact all restores, and A.C. contactor also cuts off the power supply because of J3-1 separates, and makes CJ1-1, CJ1-2 separates and has cut off pump power, and water pump has promptly quit work.The tap of fetching boiling water diminishes the pressure in the waterpipe, can make yT3 leave yT2 again, when yT3 again with after yT1 contacts, IC is triggered once more, 3 pin are exported the b that high level is added to BG1 again and are extremely gone up, relay J is moved immediately, water pump is started working and water is constantly flowed out from water tap for use.

The frequent starting protector that the J2-1 by IC, relay J of self-con-tained unit setting of the present utility model, J2-2, resistance R 6, R7, electrochemical capacitor C4, transistor BG2 constitute, the constant close contact " J2-2 " of its relay " J " is connected with electrochemical capacitor " C4 ", resistor " R7 " is connected with the b utmost point of transistor, when pump working, " J2-1 " closure, " J2-2 " separates, and 12 volts of dc sources promptly charge to 12 volts to electrochemical capacitor " C4 "; After water pump quits work, " J2-1 " separates, " J2-2 " closure, electrochemical capacitor " C4 " then discharges to the b of " BG2 " utmost point by " J2-2 ", " R7 ", make the conducting of the C-e utmost point, make " IC " the 4th pin ground connection and be the forced resetting state, make the 3rd pin of " IC " can only export zero volt of low level.At this moment frequent starting all can not make pump working in any case, have only when the voltage on the electrochemical capacitor " C4 " after the upright loop of " R6 ", " J2-2 " arc is discharged to zero volt, the b utmost point of " BG2 " ends because of no current, the C-e utmost point, " IC " just can withdraw from the forced resetting state, and water pump could be resumed work automatically.Automatic delayed is adjustable in 0～15 minute start-up time, electrochemical capacitor " C4 " span 800～2200uF wherein, and resistance R 6 is 0～4 megohm.

The pressure samples pipe " 8 " of water level pressure switch of the present utility model " XT " (hereinafter to be referred as XT) reaches the lowest water level place of hypothesis always.Reduce to when water level and to suppose water level " 18 " among Fig. 3 when locating, water pump is about to because of lack of water no-load running, must cause burning out water pump if remain in operation.But because of the mouth of pipe of the pressure samples pipe 8 of XT at this moment surfaces; its pipe compressed air is released; pressure disappears; make the contact of " XT " recover normally open; cut off the power supply of transformer B immediately; also promptly cut off the power supply of control circuit, water pump promptly can quit work immediately, thereby finishes the lack of water no-load protection.

Used its V nominal of piezo-resistance " R8 " should be in the automatic control circuit main power circuit of the present utility model in 360～471K scope.If when exchanging city's power supply source voltage up to 260 volts; because the character of piezo-resistance R8; can make that its resistance reduces rapidly, electric current increases; but excessive electric current quick-break 3RD protector and cut off the control power supply; cause A.C. contactor to discharge, also protected the automatic control part not impacted by high voltage simultaneously.

Overload, short circuit, overcurrent protection are to be finished by air automatic switch K1, fusing protector " 1RD " and " 2RD ".If pump motor is when overload, and the main power circuit electric current surpasses among normal value, the air automatic switch K1 by super normal value electric current, and the K1 closing contact is threaded off, the cut-out general supply; If when motor, cable and automatic control part or transformer B were short-circuited fault, 1RD, 2RD will fuse, cut off the control power supply and reach the purpose of protecting motor and water pump.

Embodiment: 3 meters on water identity distance ground, dark 10 meters well are arranged, well water be formed household tap water for 20 meters eminence waters.Suppose that water level " 18 " is apart from ground 9.8 meters.Now by installation water supply part shown in Figure 2, wherein water pump " 1 " is selected JQs5 * 36-0.7 submersible pump feed pipe hypomere " 5 " " galvanized pipe; flap valve is selected the DN20 spring for use; feed pipe epimere " 12 " is selected 1/2 " galvanized pipe for use of selecting 3/4 for use for use, make the probe tube " 11 " of electro connecting pressure gauge yT with high-pressure rubber hose, plastic flexible pipe is made the pressure samples pipe of water level pressure switch XT, XT selects marine products KyL-1220 volt 3 peace water level pressure switch for use, yT selects marine products yT-603 for use, 0-0.3MPa the two contact pressure tables of rationing the power supply, the air automatic switch is selected Dz5-10-10 for use, the AC220 volt, rated current 10 peaces.Drop-away current 10 peace automatic switches; Diode D1, D2 are 1N4001, and diode D3 is that 2CP13 capacitor C1, C2 are 25 volt of 0.01 microfarad, and BG1 and BG2 select 3DK4 triode, R1:R2:R3:R4=1:10:0.0006812 for use; R8 selects piezo-resistance MyH1-2 for use, V nominal 360～471K.

The drawing reference numeral explanation:

1, water pump, 2, water seepage hole, 3 and wall, 4, water level pressure switch XT, 5, the feed pipe hypomere, 6, check-valves, 7, cement well lid, 8, the level pressure probe tube, 9, submersible pump cable, 10, tap, 11, pipeline pressure probe tube " 11 ", 12, the feed pipe epimere, 13, tap, 14, roof water tank pipeline pressure probe tube, 15, roof water tank, 16 well water water levels, 17, dirt bed, 18, suppose water level, 19, water level under water tank or the water tower, 20, water level on water tank or the water tower, the yT electro connecting pressure gauge, the J relay, K1 air automatic switch, 1RD, the 2RD3RD protector, R1, R2, R3, R4, R5, R6, the R7 resistor, the R8 piezo-resistance, the B transformer, the CJ A.C. contactor, D1, D2, the D3 diode, BG1, the GB2 transistor, C1, the C2 capacitor, C3, the C4 electrochemical capacitor, the D pump motor, the N ground wire, the L live wire, the IC integrated circuit, ZD1, the ZD2 indicator lamp.

Claims

1, a kind of home-use tap water automatic controlled water pump is made up of water pump " 1 " water supply mechanism and self-con-tained unit, and wherein water supply mechanism has water supply line, flap valve " 6 ", water tap " 10 " etc.; Self-con-tained unit has automatic control circuit, water level pressure switch XT and level pressure sampling pipe " 8 ", electro connecting pressure gauge " yT " and pipeline pressure sampling pipe " 11 " etc., the feed pipe that it is characterized in that water supply mechanism is divided into two sections " 5 ", " 12 ", only with the flap valve " 6 " of a connection " 5 " and " 12 "; On-off circuit, triggering and reset circuit, excess voltage protection, no-load protection circuit, overload, short-circuit protection that the electronic circuit of self-con-tained unit is connected into dexterously by the contact of power transformer, integrated circuit, transistor triode, relay, A.C. contactor, diode, protector, resistance, electric capacity, switch and water level pressure switch and electro connecting pressure gauge etc., the frequent starting holding circuit is formed.

2, automatic controlled water pump according to claim 1, the power supply that it is characterized in that above-mentioned self-con-tained unit is that transformer B is with 220 volts of single-phase city power supply step-downs, through diode D1, D2, capacitor C 1, C2 full-wave rectification, 12 volts of DC voltages exporting after the electrochemical capacitor C3 filtering are supplied with from its output.

3, automatic controlled water pump according to claim 1 and 2 is characterized in that above-mentioned excess voltage protection is connected on the control power supply by water level pressure switch, XT piezo-resistance " R8 " and protector " 3RD ".The V that constitutes " R8 " in the loop is nominally in 360～471K scope.

4, automatic controlled water pump according to claim 1 and 2 is characterized in that said switching circuit is that the resistance value of resistor " R5 " is 200～400 ohm by resistor " R5 " formation of connecting with transistor BG1.

5, automatic controlled water pump according to claim 1 and 2, it is characterized in that above-mentioned triggering and resetting is by electro connecting pressure gauge yT, resistor " R1 ", " R2 ", " R3 ", " R4 ", the constant open contact J1-1 of relay, IC is formed, wherein IC adopts 555 integrated circuits, " R1 ", " R2 ", the one end parallel connection of " R3 " is joined through protector " 2RD " and transformer B output, the other end of " R1 " is connected with the upper limit contact yT2 of electric contact pressure gauge yT, the constant open contact J1-1 of the other end of " R2 " and relay " J ", the one end series connection of " R4 ", another termination power cathode of " R4 ", the 2nd pin of 555 ICs, the 6th pin is connected between " R2 " and the J1-1, and the other end of " R3 " joins with the 8th pin of " IC ".The ratio of the resistance value of R1, R2, R3, R4 is 1:10:0.00068:2.

6, automatic controlled water pump according to claim 1 and 2; the frequent starting holding circuit that it is characterized in that above-mentioned self-con-tained unit is to be made of the constant open contact J2-2 of relay " J ", electrochemical capacitor " C4 ", resistor " R6 ", " R7 ", transistor BG2; wherein; relay " J " constant open contact J2-1 joins through protector 2RD and transformer B output, and constant close contact J2-2 one end and resistor " R6 " join.The positive pole of one end and electrolytic capacitor " C4 " joins, and the negative pole of the other end of " R6 " and electrochemical capacitor " C4 " all joins with power cathode, and " C4, J2-2, " R6 " form the upright loop of an arc; Resistor " R7 " end and J2-2, " R6 " join, and the b utmost point of the other end and transistor BG2 joins, and the e utmost point of BG2 connects power cathode, and the C utmost point connects the 4th pin of " IC ".The capacity of electrochemical capacitor " C4 " is 0～2200uF.

7, automatic controlled water pump according to claim 1; it is characterized in that above-mentioned no-load protection circuit is that attaching water level pressure switch XT constitutes in main power circuit; one termination jail of the movable contact of XT and level pressure probe tube " 8 ", XT stationary contact and piezo-resistance " R8 " are joined.

8, automatic controlled water pump according to claim 7 is characterized in that an end of current potential pressure samples pipe " 8 " and the movable contact of water level pressure switch connect rate, and the other end passes well lid " 7 " and vertically reaches hypothesis lowest water level " 18 " always and locate.

9, automatic controlled water pump according to claim 1 and 2 is characterized in that above-mentioned overload, short circuit, overcurrent protection are by air automatic switch " K1 ", and protector 1RD, 2RD constitute.