SU787354A1 - Apparatus for dispensing liquid into tanks - Google Patents

Description

one

The invention relates to engineering. filling and molset to find application when pouring liquids into the tanks of vehicles.

A device for pouring 5 liquids into tanks, containing, is known. a pore body with a pneumatic actuator, a pipeline for filling with a transducer of a 10-level limit value into a pneumatic signal connected to two pressure amplifiers and a control unit including a trigger, two pneumatic buttons, two logic elements Ban, three elements OR , element And and two control devices, the first input of the first element of the Inhibit is connected to the power channel through one of the pneumatic buttons and to the input of the first OR element, and its second input is connected to the output of the first pressure amplifier and to the input of the second OR element, the second input of which is connected through the second pneumatic button to the supply channel, the output of the first, 25th element The ban is connected to the trigger input, and another input which is connected to the output of the second OR element, the output of the trigger is connected to the second input of the first element jg

OR, the output of which is connected to the input; vl of the elements of AND and of the second echement of the Prohibition, the outputs of which are connected via control devices to the inputs of the third element OR l.

However, this device does not ensure the safety of filling flammable liquids, since the filling starts immediately at maximum performance, which contributes to the electrification of the liquid being poured and can lead to an explosion, and also has a low filling capacity of foaming liquids.

The aim of the invention is to increase the filling capacity of foaming liquids and the safety of filling flammable liquids.

To achieve this goal, the device is additionally equipped with a third pressure reinforcement, the control unit is equipped with a third Restriction element, and the limit value converter is made in the form of three pneumatic tubes of different lengths, the output of the second pressure intensifier is connected to the inlet of the third Restriction element, another input which is connected via the third pressure amplifier with the longest pneumatic tube of the converter, and the output is connected to the second inputs of the AND element and the second element of the Inhibit. The drawing shows a diagram of the proposed device. The device contains a shut-off element 1 with a pneumatic actuator, a transducer 2, which is integrated into the pipeline for filling the limit value into a pneumatic signal, amplifiers 3-5 Strangulation and control unit b. Converter 2 consists of three different lengths of pneumatic tubes 7-9. The control block b consists of two pneumatic buttons 10, 11, three logic elements 12-14 OR, trigger 15, three elements 16-18 Prohibition, element 19 AND, and two adjusters 20 and 21. The device operates as follows. After inserting the inlet pipe into the tank, the transducer 2 is fixed to the required height from the bottom of the tank. In this case, the pneumatic tube 7 of the converter 2 is positioned in such a way that its lower edge is flush with the upper edge of the filling nozzle opening (not shown) When the pneumatic button 10 is pressed, air from the feed channel enters the input of the element 16 element 12 OR. After passing through element 16, the prohibition signal is supplied to the input of trigger 15, this signal switches trigger 15 and its output signal is fed through element 12 OR to the inputs of element 17 banned and element 19 I. The signal passes through ale 17 The prohibition of the sensor 20, the setpoint controller 20 through element 14 OR to the actuator of the locking member 1. The actuator opens the locking member 1 incompletely and begins to pour at the minimum capacity. Through element 19 and the signal does not pass, as there is no signal its second input. The setting knobs are adjusted so that the output signal of the setting knob 21 corresponds to the nominal filling capacity and the setting knob 20 to the output corresponding to 15-20% of the nominal. . After the release of the pneumatic button 10, the signal to the actuating mechanism of the locking member does not stop, since the trigger 15 remains in the switched state. . Filling at the minimum capacity continues until the liquid level in the tank reaches the lower end of the pneumatic tube. The pressure inside the pneumatic tube 7 rises and enters the pressure booster inlet. The amplified signal passes through the element 18 Barring, since there is no signal at its second input, to the inputs of elements 17 Barring and 19 And, while it will prohibit the signal from breathing to setpoint 20 and allow the signal to flow to setpoint 21, Setpoint 21 output signal through element 14 OR enters the actuator of the locking member 1, which opens completely and the filling continues at a nominal capacity. The filling at nominal capacity continues until the level of the liquid in the tank reaches the lower end of the pneumatic tube 8, and the pressure inside the tube 8 rises, the signal amplified by the pressure amplifier 4 goes to the second input of the element 18; which will cause the switching of patches. The signal from trigger 15 will pass through element 17. The inhibitor to the setting device 20, the driver of the setting device 20 through the element 14 OR to the executive mechanism of the locking organ 1, which is not fully closed, and further filling of the liquid into the tank to the specified level will pass at the minimum performance. When the liquid in the tank reaches a predetermined level, the lower end of the pneumatic tube 9 will dig through the liquid and the pressure inside the pneumatic tube 9 will increase. The signal amplified by the amplifier 3 is fed to the input of element 16 A ban and simultaneously through element 13 OR to the second input: trigger 15, the tritger switches to the initial state, the signal to the inputs of the controllers does not arrive, and the absence of a signal from the controlors to the actuator causes the final closing the closure member 1, For emergency termination of loading, a pneumatic button 11 is provided. When pressed, its air from the supply channel through the element 13 OR enters the second input of the trigger 15 and switches it to its initial state . When filling with heated liquids and in the adjustment mode, it is often necessary to add liquid to the tank after the end of Hcp flow. To do this, re-press the pneumatic button 10, while the supply air, the element 16 is banned and the trigger 15, which is in the initial state, since its second input through the element 13 OR and the pressure amplifier 3 receives a signal from the pneumotube 9, passes through the element 1.2 OR to the inputs of elements 17 of the Prohibition and 19 I. The signal passes through the element 17 A ban on the setting device 20 and does not pass through the element 19 AND, since

Claims (1)

Claim A device for loading liquids into tanks containing a shut-off element with a pneumatic actuator, a pipeline for loading with a transducer for level limit value into a pneumatic signal connected to two pressure amplifiers _t and a control unit including a trigger, two pneumatic buttons, two logic elements , three OR elements, an AND element, and two setters, the first input of the first Prohibition element being connected to the power channel through one of the pneumatic buttons and to the input of the first OR element, and the second input, with the output of the first pressure amplifier and with the input of the second OR element, the second input of which is connected through the second pneumatic button to the power channel, the output of the first Prohibition element is connected to the input of the trigger, the other input of which is connected to the output of the second OR element, the output of the trigger is connected to the second input of the first OR element, the output of which is connected to the inputs of the And element and the second Prohibition element, the outputs of which are connected through inputs to the inputs of the third OR element, characterized in that, in order to increase productivity and filling of foaming liquids and safety of filling of flammable liquids, it is equipped with an additional third pressure amplifier, the control unit is equipped with a third element of Prohibition, and the converter. the value of the limit level is made in the form of three pneumatic tubes of different lengths, while the output of the second pressure amplifier is connected to the input of the third element of the Prohibition, the other input of which is connected through the third pressure amplifier to the longest pneumatic tube of the converter, and the output is connected to the second inputs of the element And and the second Element Ban.