SU158312A1 - - Google Patents

Description

The proposed automatic device for pouring e. 1 monitors into batteries, for example, hermetic ones, is of a known type, devices of the same purpose, operating according to the principle of the free flow of electrolyte from the reservoir through a drain valve, made in the form of a solenoid valve, providing electrical readings. certain doses after a specified period of time. .

A feature of the device constituting the subject matter is the use of an electronic relay in nejM to control the amount of doses and the time of pauses. The use of such a relay consisting of a silicon Zener diode, an amplifier with positive feedback on semiconductor triodes and a two-winding electromagnetic relay controlling the operation of the solenoid valve, increases productivity and the accuracy of electrolyte filling.

FIG. I is a schematic diagram of the proposed device, FIG. 2 is its electrical circuit.

The electrolyte from the tank / is supplied to the drain valve 2, the opening time of which determines the magnitude of the injected dose.

During operation of the device, the electrolyte level in tank 1 decreases, which causes a change in the dose value.

The drain valve is controlled by a high-speed electromagnet 3, receiving the corresponding command 158312

dyes from an electronic relay 4, which sets the dose and pause between doses.

In order to maintain the dose with a given accuracy, an automatic stabilizer 5 is applied.

When the electrolyte level in the tank / float 6 is lowered, it lowers. The light from the illuminator 7 is reflected from the surface of the float and illuminates the photoresistance 8. This triggers the stabilizer 5, which closes the circuit of electromagnet P controlling the valve 10. The latter opens and the electrolyte begins to flow into the tank.

When the electrolyte reaches a predetermined level, the valve 10 closes and stops the flow of electrolyte into the tank. The tank is communicated to the atmosphere through the calcium chloride filter 12. The device is powered from the mains at a voltage of 220 V through the power supply unit 13.

As can be seen from FIG. 2, the circuitry of the device includes two autonomous channels: the dose and pause control channel and the electrolyte level stabilization channel in the tank.

The dose control channel allows the dosing time to vary from 1 to 8 seconds and the pause time from 2 to 20 seconds.

Dosing duration and pause are changed by means of an electronic time relay.

When the toggle switch VC is turned on and the contact of the schIvskiy ShI finder from the two-stage parametric stabilizer on silicon stabilizers B |, 82, BZ and resistors Ri and Ro is switched on, the capacitor C | starts to charge through the resistance Ra and R4.

After the voltage on capacitor C reaches the value of stabilization voltage of Zener diode 84, the current through the Zener diode 83 rises like an avalanche, and a negative polarity pulse arrives through the capacitor Cr to the input of the semiconductor triode nrii.

In this case, the winding Wj of the two-winding relay P | is activated, which is activated and self-closing. The second winding W2 of the relay PI, connected to the input of the triode PCB, carries out a positive feedback and provides a high gain of the amplifier and the required duration of the PB relay

When the relay PI trips with its normally open contacts, it closes the discharge circuit of the capacitor Ci through the resistance Rs and the power supply circuit of the electromagnetic solenoid valve and the SI pulse counter. The 3Mi solenoid valve is triggered and opens the drain valve 2. At the same time, the normally closed contact opens: t the PI relay at the value of the discharge of the capacitor C3, and this capacitor starts to charge through the resistances Re, R and Rs.

After the capacitor C3 charges up to the value of the stabilization voltage of the Zener diode Vz, the two-winding relay Pa, which opens its normally closed contacts in the self-blocking circuit of the relay PI and in the power supply circuit of the electromagnet EM | In this case, the PI relay is de-energized and opens its normally open contacts in the power supply circuit of the 3Mi electromagnet and in the discharge circuit of the capacitor Ci.

A 9Mi electromagnet is also provided, and the drain valve is closed.

At the same time, the relay P2, with its normally open contacts, switches on the electromagnetic actuator EP of the rotary table, which feeds the next battery under the drain valve.

After that, the cycle repeats. The pause time between doses is varied with variable resistance R4. Duration is adjusted by variable resistances Re and Ry.

The stabilization of the electrolyte level in the vessel is provided by a photo sensor (photoresistance 8 and illuminator 7) operating in reflected light. The photoresistance is included in the shoulder of the four-shoulder bridge on the resistances of Rg, Rio, Rn and Ri2. The polarized relay of the relay is connected to the measuring diagonal of the bridge. The bridge is balanced when the level of electrolyte in the tank / above specified. When the electrolyte level falls below a predetermined level, the luminance of the photoresistance 8 increases significantly, and its internal resistance decreases several times. In this case, the equilibrium of the bridge is disturbed and the relay of the relay is triggered, which, with its normally open contacts, closes the power circuit of the relay P4. Relay P4 is activated and becomes self-blocking.

With their normally open contacts, relay P4 is a capacitor charge circuit of € 4 and an EMO solenoid valve supply circuit. The capacitor € 4 begins to charge through the resistances Ri3 and RHElectromagnetic valve EM2 is triggered and the electrolyte enters the reservoir /. After a capacitor of € 4 charge is applied to the value of the voltage of the thyratron T, the latter is stopped and the relay is triggered. Relay P, having triggered, opens its normally closed contacts in the self-blocking relay of the P4 in the power circuit of the electromagnet EM2. Relays P4 and EMO solenoid valve are de-energized, as a result of which the electrolyte dolivk to the tank is stopped.

The duration of the electrolyte topping up into the vessel depends on the dosing time and is established with the variable resistance Ri3.

The restocking prevention scheme includes the following elements: photoresistance 5, resistance Ri5, RIG. R, and illuminator 7.

When a battery appears in the area of the photosensor, the light from the illuminator 7 reflected from the body of the battery hits the photosensitive layer of photoresistance 5, which triggers the relay RB, which connects the power supply circuit of relay P.

Relay PZ, triggered, self-blocked, and includes a control bell Sv.

At the same time, the relay P closes with its normally open contact the day of discharge of the capacitor Ci.

As a result, the pause between doses is delayed until the battery is removed from the range of the photosensor and the P-relay is de-energized by pressing the shut-off button (not shown in the drawing).

The relay P and resistance Rig provide control over the lighting of the illuminators 7 and 7 photosensors.

When the illuminator 7 or 7 burns out, the voltage on the relay Р- rises, it works and turns on the control bell Sv. The pause between doses shuts down until the faulty illuminator is replaced.

Subject invention

Automatic device for pouring electrolyte into batteries, for example, into hermetic ones, operating according to the principle of free is-3-Lo 158312

L 158312-4-

fluid flow and containing an electrolyte tank with a drain valve, made in the form of a solenoid valve, providing the supply of electrolyte in certain doses after a specified period of time, characterized in that, in order to increase labor productivity and precision of electrolyte filling, an electronic relay consisting of silicon a zener diode, an amplifier with: 1 feedback on semiconductor triodes and a two-winding electromagnetic relay that controls the operation of an electromagnetic valve sir

FIG I