CN2505520Y

CN2505520Y - Automatic water level controller

Info

Publication number: CN2505520Y
Application number: CN 01262206
Authority: CN
Inventors: 徐国东; 宋轩; 徐国声
Original assignee: 徐国东
Priority date: 2001-10-22
Filing date: 2001-10-22
Publication date: 2002-08-14
Anticipated expiration: 2011-10-22

Abstract

The utility model relates to an automatic water level controller using water-level fluctuation in impounding reservoir, comprising an impounding reservoir 9, a keg float vessel 2 fixed by the side of the impounding reservoir 9, wherein, the lower end of the keg float vessel is provided with a water inlet 10, the center is fixed with a sliding shaft 1 which is covered with a keg float 3 having an upper end provided with a sliding sleeve 5 and a hand slap 6; the upper end and the center of the keg float vessel 2 are provided with an upper travel switch 7 and a lower travel switch 8 respectively, which are in parallel connection with each other to form a control circuit; the control circuit, an AC contactor C of a control motor D, a normally open contact of an AC contactor C1 and a normally close contact of an AC contactor C2 form a control circuit assembly.

Description

Water level automatic control device

Technical field

The utility model relates to a kind of device that SEA LEVEL VARIATION control force (forcing) pump opens and closes automatically in the reservoir that utilizes.Be specially adapted to the low level reservoir to the system of high-level reservoir water supply and the flow matches between the multi stage pumping station.

Prior art

, in the system that head-tank supplies water, often need multistage pump to supply water and just can finish by low pool, carry out the water yield and regulate owing to be difficult to guarantee coupling, a plurality of reservoirs of intermediate demand between each pump, to guarantee the flow matches between the multistage pump.The control of multistage pressure pump is all controlled by the operator and is finished.Water level height in the reservoir is finished according to range estimation by the control personnel, and when water level reach a certain height, the staff started force (forcing) pump, extracted the water in the reservoir, when drawdown arrives certain precalculated position, and termination of pumping again.This control mode, though can reach above-mentioned requirements,, it has strengthened working strength of workers, in case make a fault, is not to cause the water in the reservoir excessive, causes water pump idle running exactly, causes energy waste.

Technology constitutes

In order to overcome above-mentioned defective, the utility model has designed a kind of automaton of water pump, this water pump automaton comprises a keg float conduit that is fixed on the reservoir next door, the bottom of this keg float conduit has the water inlet that communicates with reservoir, the center is installed with a slide-bar, be set with a keg float on the slide-bar, the upper end of keg float is installed with a sliding sleeve, the upper end of sliding sleeve is installed with a pushing hands, and be installed with a upper stroke switch and a lower stroke switch respectively at the upper end and the middle part of keg float conduit, upper stroke switch and A.C. contactor C ₁, A.C. contactor C ₂The constant close contact series circuit and lower stroke switch and the A.C. contactor C that link to each other to form ₂The series circuit parallel connection that link to each other to form, upper stroke switch also with A.C. contactor C ₁A constant open contact parallel connection, wherein control the A.C. contactor C and the A.C. contactor C of motor ₁Normally open contact and A.C. contactor C ₂Normally closed interlock form the loop, the normally open contact of incoming transport contactor C constitutes in the power line of motor D.

Because the motor of this water pump has been installed by the Water Level Control device, can reach the height that utilizes the reservoir middle water level and control opening and closing of motor, that is: when the water level in the reservoir rises, keg float in the controller drives sliding sleeve and also rises thereupon, when the pushing hands of sliding sleeve upper end contacts upper stroke switch, make the upper stroke switch closure, A.C. contactor C ₁Energising, A.C. contactor C ₁The normally open contact closure, A.C. contactor C energising, its normally open contact closure, the driven by motor water pump draws water; Water level in the reservoir slowly descends, and the keg float in the controller drives sliding sleeve and also descends thereupon, when the pushing hands of sliding sleeve upper end contacts lower stroke switch, makes the lower stroke switch closure, A.C. contactor C ₂Energising, A.C. contactor C ₂Normally closed interlock disconnect, A.C. contactor C outage, its normally open contact disconnects, water pump stops pumping.

Can realize that by this automaton water pump according to the opening and closing of the height control of pump of reservoir middle water level, realizes the automatic control of water pump.It can alleviate labor intensity of operating personnel first; Second can prevent the too high or too low accident that causes, realize by low level in the system that a high position supplies water the flow matches between the multistage pump preferably because of the reservoir middle water level.

Description of drawings

Fig. 1 is the structure principle chart of keg float control travel switch;

Fig. 2 is the structure principle chart of the utility model electric control system.

Embodiment

Keg float conduit 2 of the present utility model can be used the metal material manufacturing, also can make with nonmetals.This keg float conduit 2 is fixed on the next door of reservoir 9, the bottom of this keg float conduit 2 has the water inlet 10 that communicates with the pond, the center is installed with a slide-bar 1, be set with a keg float 3 on the slide-bar 1, the upper end of keg float 3 is installed with a sliding sleeve 5, the upper end of sliding sleeve is installed with a pushing hands 6, and is installed with a upper stroke switch 7 and a lower stroke switch 8 respectively at the upper end and the middle part of keg float conduit 2, upper stroke switch 7 and A.C. contactor C ₁, A.C. contactor C ₂The constant close contact series circuit and lower stroke switch 8 and the A.C. contactor C that link to each other to form ₂The series circuit that link to each other to form is in parallel, upper stroke switch 7 also with A.C. contactor C ₁A constant open contact parallel connection, wherein control the A.C. contactor C and the A.C. contactor C of motor D ₁Normally open contact and A.C. contactor C ₂Normally closed interlock form the loop, the normally open contact of incoming transport contactor C constitutes in the power line of motor D.

In order to realize that water pump is automatic, manually all to operate, in control circuit, a changeover switch ZH is installed, automatic or manual control with change-over circuit, at this moment, in main control circuit, a normally closed touch switch TA connects, often open touch switch QA for one in parallel, and constitute at the normally open contact of often opening touch switch QA two disconnected A.C. contactor C in parallel.As changeover switch ZH during at automated location, water pump can be controlled startup and shutdown by above explanation automatically by the water level in the reservoir.As changeover switch ZH during in manual position, often open touch switch QA, normally closed touch switch TA, A.C. contactor C constitute control loop, press when often opening touch switch QA, this loop energising, A.C. contactor C work, water pump begins to draw water; When pressing normally closed interlock switch TA, this down circuitry, A.C. contactor C quits work, and water pump stops pumping.

In order to strengthen the stability of slide-bar 1, the middle part in keg float conduit 2 is installed with slide-bar fixed disk 4.

Claims

1, water level automatic control device, it comprises a keg float conduit (2) that is fixed on reservoir (9) next door, it is characterized in that: the bottom of this keg float conduit (2) has the water inlet (10) that communicates with reservoir (9), the center is installed with a slide-bar (1), be set with a keg float (3) on the slide-bar (1), the upper end of keg float (3) is installed with a sliding sleeve (5), the upper end of sliding sleeve (5) is installed with a pushing hands (6), and be installed with a upper stroke switch (7) and a lower stroke switch (8) respectively at the upper end and the middle part of keg float conduit (2), upper stroke switch (7) and A.C. contactor C ₁, A.C. contactor C ₂The constant close contact series circuit and lower stroke switch and the A.C. contactor C that link to each other to form ₂The series circuit parallel connection that link to each other to form, upper stroke switch also with A.C. contactor C ₁A constant open contact parallel connection, wherein control the A.C. contactor C and the A.C. contactor C of motor ₁Normally open contact and A.C. contactor C ₂Normally closed interlock form the loop, the normally open contact of incoming transport contactor C constitutes in the power line of motor D.

2, water level automatic control device according to claim 1, it is characterized in that: in control circuit, changeover switch ZH and a normally closed touch switch TA of the automatic or manual control of a change-over circuit of series connection, often open touch switch QA for one in parallel, and constitute at the normally open contact of often opening touch switch QA two disconnected A.C. contactor C in parallel.