CN2358473Y - Water level controller for double pool - Google Patents

Abstract

The utility model relates to a water level controller for double pools. The collecting electrode of a BG1 is connected with an upper relay J1, the collecting electrode of a BG2 is connected with a lower relay J2, and a normally closed contact J11 of the upper relay J1 is connected in series with a normally open contact J21 of the lower relay J2, so that a switch L-2 is formed. The BG1 can control the actions of the upper relay J1, and the BG2 can control the actions of the lower relay J2, so that the switch L-2 can be switched on by a low water level and can be switched off by a high water level in an upper pool, and the switch L-2 can be switched off by a low water level and can recover to be switched on by a high water level in a lower pool. The utility model has the advantages of sensitive and reliable automatic control, and convenient assembly and disassembly, and has the function of lightning protection.

Description

Two pool water level controllers

The utility model relates to automatic control technology field, especially Water Level Control.

In daily life, often water or liquid to be transported to more eminence, general way is to be transported to elevated basin with the liquid that water pump will hang down the pond to get on, for operation automatically safely for a long time, one automaton need be set, this device should be able to draw water automatically according to the water level situation in height pond, and promptly the upper pool low-water level starts, and high water stage stops; The sink low-water level is forbidden work, and water level raises, and the back is automatic recovers.

Ball float and relay are installed respectively in the height pond and are designed operation circuit, just can reach above-mentioned requirements.But this scheme is early stage, and it is big to have a volume, installs and transfers difficulty, the high and shortcoming such as easy-maintaining not of cost.Advanced at present technology is to adopt import IC spare, the just may command action of drawing water of water-level probe is installed with an IC with in the pond, reach above-mentioned requirements, this advanced technology, volume is little, and wiring is easy, cost is low keeps in repair with need not basically, its weak point is to exist misoperation and easy sensed thunder and lightning to destroy, and water-level probe is the oxidized scaling of being stained with easily, must regularly remove.

The purpose of this utility model is that import IC spare is improved, and uses integrated circuit instead two transistor circuits and replaces, and can reach same effect, does not have misoperation and has the lightning protection function.

The utility model as shown in Figure 1, L, N provides alternating current to circuit, through transformer B and bridge rectifier circuit D1, D2, D3, D4 changes the required direct supply of system into, uses two transistor circuits in the system, and the collector of BG1 connects relay J 1, the collector of BG2 connects down relay J 2, and the normally closed contact J11 of last relay J 1 and the normally opened contact J21 of following relay J 2 are concatenated into the L-2 switch.The BG1 action that relay J 1 is gone up in control according to the upper pool water level, BG2 connects L-2 switch realization upper pool low-water level according to the sink water level control action of relay J 2 down, and high water stage disconnects; The sink low-water level disconnects, and recovers to connect after water level raises.

The utility model is described in further detail below in conjunction with the example of Fig. 1 and Fig. 2:

Fig. 1 the utility model circuit structure diagram,

Fig. 2 the utility model application example wiring diagram.

L-2 line of the present utility model is concatenated in the interface circuit of A.C. contactor C and uses as automatic switch, L termination phase line, N termination zero line, L, N provides 220 volts of alternating currents to circuit board, transformer B and bridge rectifier circuit D1, D2, D3, D4 become direct current with alternating current and offer transistor BG1 and BG2 use.The external sink lack of water potential electrode that goes up of 01 earth point in the circuit, 06 high potential electrode of external upper pool, the interior base stage of after resistance R 1, receiving transistor BG1,05 external upper pool low position electrode, in connect the normally opened contact J12 of relay J 1 after receive the base stage of BG1 after the resistance R 1, the collector of BG1 connects relay J 1,03 high potential electrode of external sink, the interior base stage of after resistance R 2, receiving transistor BG2,02 external sink low position electrode, in meet down the normally opened contact J22 of relay J 2 after resistance R 2 is received the base stage of BG2, the collector of BG2 connects down relay J 2.The normally closed contact J11 of last relay J 1 and another normally opened contact J21 of following relay J 2 are concatenated between L and 2.Its principle of work is:

1, when not having water or water level to be lower than 05 electrode (water-level probe) in the upper pool, 01 and 06 open circuit, BG1 ends, and last relay J 1 discharges, its normally closed contact J11 closure, normally opened contact J12 opens.

When 2, water level in water pool was irritated to 03 electrode instantly, the BG2 base stage obtained positive bias (by liquid conduction in the pond), BG2 conducting, following relay J 2 adhesives, with normally opened contact J21 and J22 closure, this moment, L-2 connected, make A.C. contactor C action, connect pump motor and make pump operation, supply water to upper pool.

3, water level in water pool is lower than 03 and be higher than at 02 o'clock instantly, because at this moment J22 is closed, so BG2 still can obtain positive bias and continue conducting from 02, water pump remains in operation, and supplies water to upper pool.

When 4, water level in water pool was lower than 02 electrode instantly, the base stage of BG2 was cut off the power supply and is ended, and following relay J 2 discharges, and normally opened contact J21 and J22 disconnect, and this moment, L-2 disconnected, A.C. contactor C dead electricity, water pump stall.

When 5, water level in water pool is irritated to 03 electrode instantly, repeat the 2nd point.

6, when the upper pool water level rises to 06 electrode, the BG1 base stage obtains positive bias (by liquid conduction in the pond), BG1 conducting, last relay J 1 adhesive, its normally closed contact J11 disconnects, normally opened contact J12 closure, and this moment, L-2 disconnected, A.C. contactor C dead electricity, the water pump stall stops to supply water to upper pool.

7, be lower than 06 and when being higher than 05 when the upper pool water level, because at this moment J12 is closed, so BG1 still can obtain positive bias and continue conducting from 05, the water pump stall is not supplied water to upper pool.

8, when the upper pool decline of water table is left 05 electrode, the base stage of BG1 is cut off the power supply and is ended, and last relay J 1 discharges, its normally closed contact J11 closure, normally opened contact J12 opens, and L-2 connects (the sink water level is between 02 and 03), A.C. contactor C action, water pump supplies water to upper pool again.If the sink water level is lower than at 02 o'clock, repeat the 4th point.

V01 among the figure, V02 are protruding wave absorber (voltage dependent resistor (VDR)), have anti-lightning protected function, respectively the one termination are gone into the high low-water level lead of upper pool, other end ground connection.

Claims (1)

1, two pool water level controllers, rectification circuit is arranged, transistor circuit and relay and level electrode are formed, it is characterized in that: the collector at transistor BG1 connects relay (J1), collector at transistor BG2 connects relay (J2) down, to go up the normally closed contact (J11) of relay (J1) and the normally opened contact (J21) of following relay (J2) and be concatenated into the L-2 switch, the transistor BG1 action that relay (J1) is gone up in control according to the upper pool water level, transistor BG2 is according to the sink water level control action of relay (J2) down, make the L-2 switch realize the connection of upper pool low-water level, high water stage disconnects, the sink low-water level disconnects, and recovers to connect after water level raises.