CS231603B1 - Connection to automatic pumping - Google Patents

Abstract

The connection for automatic pumping relates to the field of control technology, the purpose of the invention is to simplify as much as possible, increase reliability, reduce costs, labor, material, weight, electrical energy consumption, failure rate, maintenance and work safety. The essence of the invention lies in the direct connection of two relays to the sensor electrodes, of which the second relay controls the relay and the first relay closes and opens the contactor coil circuit.

Description

x 231 803

The invention relates to wiring. for automatic pumping of liquids into the tank using. discontinuous isfluorelectric level sensor * For fluid containers, the usual minimum and maximum fluid level is provided by various types of floaters, pressure switches and the like, mechanically.

Such regulation has drawbacks due to the reliability of moving parts, resulting in frequent failures.

Known quinoline level controllers consisting of a non-float switch with three rod electrodes that control the respective electronic devices pump contactor coherent and costly with its own pricing stage. In addition to the rod-shaped non-float switches, there are a number of drawbacks that eliminate discontinuous uniaxial modular sensors of the level of AO 194 982, for which there is not yet a simple connection for automatically maintaining the liquid level in tanks, reservoirs, dams, reservoirs. within the set range.

The aforementioned drawbacks of automatic fluid level maintenance are eliminated by the proposed connection with a discontinuous uniaxial sensor, the principle of which is that the upper electrode and the lower part of the discontinuous one-axis sensor are connected and connected to the first pole of the power supply, the outer electrode of the lower part the discontinuous one-axle sensor is connected to the first relay input, the outlet of which is connected to the first switching contact and the second contact of the second relay, the outer electrode of the disc of the discontinuous one-axis sensor is connected to the second relay, the outlet of which is connected to the second pole of the power supply, the second pole of the power supply The contact of the second relay and the first and second switching contact relays are connected to the power supply, and the first pole of the power supply is connected to the contactor, the terminal of which is connected via a switch to a second break contact first. relay

The proposed wiring of the auxiliary relay directly controls the uniaxial level sensor, allows for a solution without amplification stages, utilizes lower operating 231 803 voltage between the electrodes, manifests itself in simplicity, greater convenience, reliability, material savings, labor and maintenance. cost, volume, energy consumption, safety at work, and minimize failures and maintenance.

The accompanying drawing shows an overall schematic connection for automatic pumping with a discontinuous one-axis sensor®

The connection is formed by a discontinuous uniaxial sensor A, wherein the inner electrodes of both parts are connected to and led to the first pole of the source F, the outer electrode part being connected to the coil of the first relay D and the outer electrode of the upper part to the coil of the second relay E® first pole the source F is connected to the coil of the contact C and the second coil F to the coil and the switching contact of the second relay E1 as well as the two changeover contacts of the first relay D, whose coil of the contact is connected to the changeover contact of the second coil E® The second coil point of contact C is through the switch G connected to the second NC contact of the first relay D and the electric pump B directly connected to the C® contacts

By switching on the switch G, the coil circuit C is closed, which turns on and actuates the pump motor B to pump the liquid. The rising liquid level through the two electrodes of the upper sensor part A closes the coil circuit of the second relay E, which closes and closes through the folded contact. The first relay D switches on and in the first translated contact becomes independent of the contact position of the second relay E, and in the second folded contact opens the circuit of the contact C which disconnects the motor of the pump B, thereby terminating pumping ® By dropping the liquid below the lower flat electrode of the lower sensor part A, the coil circuit opens for the first relay D, which passes into the rest position and the coil circuit C is closed again through the second contact of the relay D and this process is repeated.

The connection according to the invention can also be used with small modifications to control the liquid level from the pressure pipe, whereby the fluid is replaced by an electromagnetic valve of the liquid feed from the pipe.

Claims (1)

SUBJECT 231 803 INVENTION Connection for automatic pumping of liquid using a discontinuous mono-sensor, where the pump motor is connected to the mains, characterized in that the inner electrode of the upper and lower parts of discontinuous mono-axis sensor (A) are connected and connected to the first pole of the power supply (F). the electrode, the lower part of the discontinuous one-wire sensor (A) is connected to the input of the first relay (D), the terminal of which is connected to the first make contact and the changeover contact of the second relay (E); a second relay (E) ' which is connected to a second pole of the power supply (F), a second pole of the power supply (F) is connected to the switching contact of the second relay (E) and the first and second changeover contacts of the first relay (D) the first pole of the power supply (F) is connected to. supply of contactor (C), the output of which is connected via switch (0) to the second break contact of the first relay / D / «