SU851101A1 - Automatic metering tank - Google Patents

Description

The invention relates to dispensing devices and can be used in all sectors of the national economy for the automatic dispensing of doses of liquids, and also for maintaining a given level of liquid in the tank.

Known automatic liquid dispenser, consisting of a tank equipped with a drain pipe, and dose adjuster. The dose adjuster is made in the form of a rod equipped with a float at the upper end, and a radiator at the lower end, and is placed in a vertical pipe, the lower end of which is connected to the lower part of the tank ₁₅

A disadvantage of the known device is the impossibility of multicomponent dosing and automatic changes in the volume of dosed liquid, depending on technological needs. The use of radiation is also undesirable.

The purpose of the invention is the provision of multicomponent dosing.

This goal is achieved in that the dose adjuster is made in the form of at least two vertical non-magnetic pipes, in which magnetically operated contacts are mounted with the possibility of vertical movement, and a float with built-in magnets according to the number of pipes.

In addition, in order to increase the accuracy of dosing, a perforated partition is installed between the dose adjuster and the working part of the tank.

The drawing shows a dispenser, General view.

The dispenser contains a tank 1, divided into two connected containers by a perforated partition 2, a cover 3, in which tubes 4-6 of non-magnetic material are mounted, the number of the latter is determined by the number of liquid dose components.

Inside the tubes 4-6 are sealed magnetically controlled contacts 7-10. Contacts 7 and 9 are 851 dose adjusters and are controlled by actuators 11 and 12 using flexible connections 13 and 14. In addition, inside the tank 1 there are a float 15 with permanent magnets 16, ₅ of which correspond to the number of dose components, an emergency float 17 s permanent magnet 18. A fitting 19, a flow tube 20, a pipe <0 21 are also mounted in the removable cover 3. The device has a three-way valve 22, check valves> 1 23 and 24, the number of which is also determined by the number / of dose components.

The device operates as follows <5 · (for example, the preparation of the molding mixture in foundries).

Clay suspension dose adjustment is carried out automatically by means of an actuator ₂₀ 11, which is triggered by a signal from an electronic device and, by means of a flexible connection 13, establishes a sealed magnetically controlled contact 7 at a predetermined level. ₂₅

At the signal of the electronic device for preparing the molding mixture, the check valve 23 is opened and a clay suspension enters the tank 1 through the pipe 21. The air in the 1 _3Q tank exits through the fitting 19 and the three-way valve 22 into the atmosphere.

The float 15 with permanent magnets 16 begins to rise. Толькоκ only the float 15 rises to a predetermined level, magnetically sealed, - ³⁵ controlled contact 7 trips. The electronic device gives a signal to close the check valve 23 and open the check valve 24, after which water begins to flow into the tank 1. ⁴⁰ Regulation of the dose of water is carried out automatically by means of an actuator 12, which is triggered by a signal from an electronic device for automatic control of wet * * ⁴⁵ mold sand and, using a flexible connection 14, establishes a sealed magnetically controlled contact 9 at a predetermined level.

The sealed magnetically controlled 50 contact 9 is activated as soon as the float 15 rises to a predetermined level.

The electronic device gives a signal · to close the check valve 24 and water stops flowing into the tank 1.

'1 . 4

At the signal of the electronic device for preparing the molding mixture, a three-way valve 22 is activated and compressed air is supplied to the tank 1 through the nozzle 19, which displaces the entire dose of liquid through the flow pipe 20 into the mixer.

As soon as the tank 1 is freed of liquid, the float 15 sinks to the bottom under the action of permanent magnets 16, a sealed magnetically controlled contact 8 is activated, which signals the end of the cycle and the beginning of the next. In the event of an emergency overflow of the tank 1, the sealed magnetically controlled contact 10 is activated under the action of a permanent magnet 18 of the emergency float 17, which turns off the liquid supply through the pipe 21 and turns on the alarm signal.

To reduce fluctuation, amendment 15 and, therefore, to improve the accuracy of operation, the floats 15 and 17 are partially separated from the working part of the tank 1 by a perforated partition 2.

The use of the invention improves the reliability and automates the process of regulating the volume of issued doses of multicomponent mixtures of liquid bone.

Claims (2)

The invention relates to dispensing devices and can be used in all sectors of the national economy for the automatic delivery of doses of liquids, and also for maintaining a predetermined level of liquid in a container. An automatic liquid dispenser consisting of a tank equipped with a discharge nozzle and dose settings is known. The dose setter is made in the form of a rod fitted at the upper end with a float, and at the lower end with a radiator, and placed in a vertical pipe, the end of which is connected to the lower part of the tank. depending on technological needs. The use of radioactive radiation is also undesirable. The purpose of the invention is the provision of multi-component dosing. This goal is achieved by the fact that the dose setting device is made in the form of, lio less measure, two vertical non-magnetic pipes, magnetic contacts are mounted with the possibility of vertical movement, and a float with built-in magnets by the number of pipes. In addition, in order to improve the metering accuracy, a perforated partition is installed between the dose setter and the working part of the tank. The drawing shows the dispenser, a general view. The dispenser contains tank 1, divided into two communicating vessels by a perforated partition 2, a cover 3, in which tubes 4-6 of non-magnetic material are mounted, the number of the latter is determined by the number of liquid components of the dose. Inside the tubes 4-6 there are sealed magnetically controlled contacts 7-10, Contacts 7 and 9 are dose setting devices and are controlled by executive mechanisms 11 and i 2 by means of flexible connections 13 and 14. In addition, inside tank 1 are a float 15 with permanent magnets 16, the number of which corresponds to the number of dose components, an emergency float 17 with a permanent magnet 18. The removable cover 3 also has a fitting 19, a flow tube 20, a spigot 21. The device has a three-way valve 22, check valves 1 23 and 24, the number of which also determines with the number of dose components. The device works as follows, (for example, the preparation of a molding mixture in foundries). The dose adjustment of the clay suspension is carried out automatically by means of an actuator 11, which is triggered by an electronic device signal and, by means of a flexible link 13, establishes a sealed magnetic contact 7 at a predetermined level. At the signal of the molding sand preparation electronic device, the check valve 23 opens and a slurry clay enters the tank 1 through the pipe 21. The air in tank 1 is discharged through fitting 19 and three-way valve 22 to the atmosphere. The float 15 with constant mapadta b begins to rise. Kick only poppavok 5 rises to a predetermined level, sealed magnetically, go right e fi lth contact 7 works. The electronic device gives a signal for closing the check valve 23 and opening the reverse valve 24, after which water begins to flow into tank I Water is adjusted automatically by means of an executing mechanism 12, which drains from the signal of the electronic device. automatically control the wet sand of the molding sand and, using a flexible coupling 4, sets the magnetic control of pin 9 at a predetermined level to hermetically sealed. A sealed magnetic control A contact 9 is activated as soon as the float i5 rises to a predetermined level. The electronic device sends a signal to the closed check valve 24 and stops the water from entering the tank I. A three-way valve 22 is triggered by the signal from the electronic device for preparing the molding mixture and compressed air is supplied to the tank 1 through the nozzle 19, which displaces the entire fluid dose the mixer. As soon as the tank 1 is freed from the liquid, the float 15 is lowered to the bottom and, under the action of the permanent magnets 16, the magnetic control contact 8 is activated, which signals the end of the cycle and the beginning of the next. In the event of an emergency overflow of the tank 1, a sealed, mass-controlled contact 10 is activated under the action of a constant mag- and nit 18 of the emergency float 17, which turns off the flow of liquid through the nozzle 21 and activates the alarm signal. For reduced oscillation, correction 15 and, consequently, to increase the accuracy of CPA, the floats 15 and 17 are partially separated from the working part of the tank by the perforated recess 2. The use of the invention improves the reliability and automates the process of adjusting the volumes of multi-component fluid mixtures delivered. Claims 1. Automatic liquid dispenser, containing a tank with a drain pipe and unit. doses, in order to ensure multi-component dosing, the dose master is made in the form of at least two vertical non-magnetic pipes, in which the magnetic control contacts are installed with the possibility of vertical movement, and a float with fixed magnets by the number of pipes. 2. The dispenser according to Claim 1, which is designed to increase the accuracy of dosing, a perforated partition is installed between the dose adjuster and the working part of the tank. Sources of information taken into account in the examination 1. USSR author's certificate 159662, cl. (3 01 F 11/2 (8, 1962 (prototype).