CN2148100Y

CN2148100Y - Automatic water supply controller

Info

Publication number: CN2148100Y
Application number: CN 92245262
Authority: CN
Inventors: 阎继成
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-20
Filing date: 1992-12-20
Publication date: 1993-12-01
Anticipated expiration: 2002-12-20

Abstract

The utility model provides an automatic water supply controller for controlling water supply under constant pressure. The automatic water supply controller is composed of a speed governor (2), an air circuit breaker (3), a fuse (4), a thermal relay (5), an inductance coil (6), buzzers (7), (8) installed in a vertical cabinet (1), a regulated power supply composed of two printed wiring boards and electronic elements thereof, an instantaneous stopping protecting circuit of the speed governor (2), a pressure variable-speed input circuit of the speed governor (2), a pressure control circuit of a constant-speed pump, a water level control circuit, and a frequency list (11), an ammeter (12), switches (13), (14), (15) and indicator lights (16), (17), (18), (19) on a fixed panel. The utility model has the advantages of energy saving, timely and reliable water supply, etc., and the utility model can automatically cut off the power supply to stop supplying water and give an alarm at the time of fault.

Description

Automatic water supply controller

The utility model relates to a kind of automatic constant-pressure control to supplying water.

Present speed governing water supply facilities generally all is provided with the standby constant speed pump of a cover by A.C. contactor control, puts into operation under water use peak or governor failure condition.Pressure is uncontrollable when adopting the independent continuous water supply of constant speed pump, easily causes pipeline leakage when hypertonia still continues feedwater, i.e. water wasting takes again.If adopt pressure controller to control, certainly will cause the A.C. contactor frequent movement, may burn out contact, and because the vibration of adhesive and release is increased accident rate.

Task of the present utility model provides a kind of energy, safe and reliable of both having saved, and water supply is carried out the self water feeding control device of constant voltage control.

Task of the present utility model is to combine and realize that it is by resistance R that its governor wink stops holding circuit by being installed in stopping holding circuit, governor pressure inverting input circuit, constant speed pump pressure control circuit and water-level control circuit in governor, air-break, fuse, thermal relay, inductance coil, buzzer and the voltage-stabilized power supply of being made up of the electronic device on the two bar printing wiring boards, governor wink and being fixed on frequency meter, ammeter, switch, indicator lamp on the panel in the vertical counter ₁, capacitor C ₂Get dividing potential drop time-delay input unijunction transistor T ₁, unijunction transistor T ₁The pulse signal of first base stage output is through triode BG ₁Amplify series connection and insert relay J ₁, and connect its normal opened contact J _1-1-J _1-3Its governor pressure inverting input circuit is by teletransmission pressure meter W ₁The pressure-dependent voltage signal of sending is through resistance R ₆, potentiometer W ₂Enter triode BG ₂Base stage is through triode BG ₂, BG ₃Two-stage is passed through resistance R after amplifying ₁₁Send into the governor signal end.Its constant speed pump pressure control circuit is that the pressure controller normally closed contact is inserted triode BG ₄Base stage is to control its conducting and to end triode BG ₄Colelctor electrode through resistance R ₁₃Signal is imported by unijunction transistor T ₂With pulse transformer B ₃The oscillation circuit formed of elementary winding, the controllable silicon SCR that respectively is in parallel by the direct control of the pulse signal of secondary windings again.And thermal relay normally closed contact, water level control relay J ₂The elementary windings in series of normal opened contact and pulse transformer.Its water-level control circuit is that water level signal is sent into triode BG ₅Amplify, make the relay J of connecting with colelctor electrode ₂Adhesive, the control feedwater.

The utility model is owing to adopt the alternative A.C. contactor of controllable silicon to avoid burning out contact and greatly reduce accident rate, especially the combination of each several part circuit, make this utility model have energy conservation, it is timely, reliable to supply water, the advantages such as stopping water supply and warning of cutting off the electricity supply automatically during fault.

Accompanying drawings embodiment:

Fig. 1 is the key wiring diagram of self water feeding control device;

Fig. 2 is the overall structure schematic diagram of self water feeding control device.

As seen from Figure 1, Figure 2, the utility model is when assembling, at first with frequency meter 11, ammeter 12, three switch 13-15 and four indicator lamp 16-19 by fixed-site shown in Figure 2 on the panel on vertical counter 1 top, again with the printed substrate 9,10 that welds, comprise that socket and governor 2, air-break 3, fuse 4, thermal relay 5, inductance coil 6, buzzer 7,8, terminal row are fixed on the liner plate of vertical counter 1 by relative position shown in Figure 2, and with liner plate and vertical counter 1 bolt.Connect up by circuit connecting relation shown in Figure 1 then.Introducing, lead-out wire enter terminal row.

During use, close air-break 3 earlier,

close power switch

14,15 again, indicator lamp 16 is bright, relay J behind the time-delay five seconds ₁Adhesive, governor 2 power control terminals insert power supply.When the water surface of reservoir surpasses tested liquid level, J ₂Adhesive indicator lamp 17 is bright, and two pumps outwards supply water simultaneously to cooperate and realize constant voltage control, also can realize constant voltage control separately.Reservoir is anhydrous, and indicator lamp 19 is bright, and two pumps all stop outside water supply.The constant speed pump generally is lower than the lower limit input as stand by pump at pressure, is higher than higher limit and withdraws from, and fault heating controllable silicon is by the indicator lamp 18 bright warnings simultaneously of cutting off the electricity supply automatically.Buzzer 7 is reported to the police and is stopped to supply water under governor 2 failure conditions, and the constant speed pump drops into when pressure is lower than lower limit automatically, and the elimination of governor 2 faults is restarted will be by reset switch 13, and governor 2 puts into operation automatically.

Claims

1; a kind of self water feeding control device; comprise governor (2); air-break (3); fuse (4); thermal relay (5); inductance coil (6); buzzer (7); (8); frequency meter (11); ammeter (12); switch (13); (14); (15); indicator lamp (16); (17); (18); (19) and voltage-stabilized power supply, it is characterized in that this device is provided with by two bar printing wiring boards (9); (10) and electronic device form stop protection governor (2) wink; the input of governor (2) pressure inverting; the control of constant speed pump pressure; water level is controlled four partial circuits.

2, self water feeding control device according to claim 1 is characterized in that stopping holding circuit governor (2) wink is by resistance (R ₁), electric capacity (C ₂) get dividing potential drop time-delay input unijunction transistor (T ₁), unijunction transistor (T ₁) pulse signal of first base stage output is through triode (BG ₁) amplification series connection cut-in relay (J ₁).

3, self water feeding control device according to claim 1 is characterized in that governor (2) pressure inverting input circuit is with teletransmission pressure meter (W ₁) the pressure-dependent voltage signal sent is through resistance (R ₆), potentiometer (W ₂) enter triode (BG ₂) base stage, through triode (BG ₂), (BG ₃) after two-stage amplifies, again by resistance (R ₁₁) send into the governor signal end.

4, self water feeding control device according to claim 1 is characterized in that constant speed pump pressure control circuit is that pressure controller normally closed contact (YJ) is inserted triode (BG ₄) base stage, triode (BG ₄) colelctor electrode output through resistance (R ₁₃) signal is imported by unijunction transistor (T ₂) and pulse transformer (B ₃) the oscillation circuit formed of elementary winding, trigger each phase bidirectional triode thyristor (SCR) by three secondary windings again.

5, self water feeding control device according to claim 1 is characterized in that water-level control circuit is that water level signal is sent into triode (BG ₅) amplify the relay (J that control is connected with colelctor electrode ₂).