CS269543B1 - Equipment for aerating a number of liquid and semi-liquid substances - Google Patents

Abstract

The solution concerns an aeration device for substances from liquid to pasty consistency stored in closed tanks, which works in an indirect manner, i.e. aerating the amount of atmospheric air in the tank above the stored substance. The essence of the device is an input and output anaesthetic sensor of the amount of atmospheric air mounted on the ceiling of the tank, whose function is regulated by closing flaps, while the overflowed amount of atmospheric air is recorded and evaluated in the recording and evaluation unit by means of pulses.

Description

The invention relates to a device for measuring the quantity of liquid and semi-liquid substances with a high viscosity, especially its decrease or increase, advantageously in full-capacity tanks, on the principle of measuring the equivalent volumetric quantity of atmospheric air introduced into the tank during emptying and expelled during filling.

Currently, more or less accurate measurement methods using a float, a pressure gauge without or with the use of a conversion table, magnetic-induction flow meters, watermarks and ultrasound are known and used. In bulk liquids, this is the measurement of the penetration of bulk solids using a reflective plate. A method of non-contact control of the bulk flow of granules and torsion scales.

The described measurement methods have the following shortcomings: in some cases, in tower types of water reservoirs, the water level was determined by means of a float. to which a cable was attached at one end, terminated at the opposite end by a plumb line. The cable was led through a pulley to the outer side of the reservoir casing, on which the divisions marked from bottom to top informed about the water level in the tank. When the level dropped below the minimum level, the water pump was automatically switched on. In this way, the volumetric water consumption can only be monitored approximately until the pump is switched on. The water level can be monitored by ultrasound. The amount of liquid in horizontally placed cylindrical tanks can be determined by a calibrated rod with scales adapted for direct aeration or by means of a calculation table. The amount of liquid withdrawn can be determined from the difference between the two liquid levels. Flow meters measure the amount of liquid withdrawn at a time, but not the amount of liquid in the tank.

Water marks placed at different heights on the tank surface allow continuous monitoring of only the liquid level and not the viscosity. Torsion scales are accurate, but they cannot be used to weigh large-capacity tanks and over time, the material fatigue of the tension rods may also occur.

The above-mentioned shortcomings are eliminated by the device for measuring the amount of liquid and semi-liquid substances according to the invention, the essence of which is that in the ceiling part of the storage tank, at least one input and one output anemometric sensor of the flow volume of atmospheric air is mounted on parallel or separate outlets, each of which has a closing flap built into the supply branch, while common or separate pulse transmitters are connected to the input and output anemometric sensors via the anemometer speed sensor, which are connected to the recording and evaluation unit by a transmission medium.

The device ea ensures highly accurate measurement of liquid and semi-liquid substances of various viscosities. By replacing the direct measurement of the amount of loss or gain of a substance stored in closed tanks with an indirect one, i.e. by measuring the amount of atmospheric air above the stored substance, the device is guaranteed to be trouble-free and it is possible to measure various types of substances with varying degrees of aggressiveness.

The attached drawing shows an exemplary embodiment of the device according to the invention, where Fig. 1 is a diagram of the device connected to a storage tank and Fig. 2 is a cross-section of an anemometric device.

The device consists of a common outlet J, which is connected at one end to the ceiling part 1 of the storage tank 2 and to the other end, via supply branches ¢, <j’with arranged closing flaps '7, ^’, the input 4 and output anemometric sensor £ are connected.

The input and output anemometric sensors are connected via speed sensors § to pulse transmitters 10, which are connected via a radio transmission medium 11 via a pulse

CS 269543 Bl receiver 15 for recording and evaluation unit 12.

When filling the closed storage tank 3, atmospheric air is forced out of its interior through the common outlet i, the supply branch t, the open closing flap Z** ^to the output anemometric sensor 2. where it rotates the anemometer 2 · J* whose speed is transmitted by the pulse transmitter 10 to the pulse receiver 13 through the contrast target 14 and the optical speed sensor £ in the form of pulses. ¹ of which are recorded and evaluated on the recording and evaluation unit 12.

During emptying, atmospheric air is sucked into the storage tank i through the inlet anemometric sensor £ with a pre-filter 15, the supply branch £ with an open closing flap Z · a closed closing flap Z', and the common outlet J, the volume of which is equal to the volume of the discharged substance. The amount of atmospheric air sucked in, directly proportional to the discharged substance, is measured and recorded in the same way as when filling the storage tank.

The device according to the invention can be used to measure the loss, gain or quantity of any liquid or semi-liquid substance stored in closed tanks.

I INVENT

Claims (1)

The receiver 13 for recording and evaluating the unit 12. During the filling of the closed storage tank 2, the atmospheric air from its interior is forced through the common outlet 1, the flowing branch i *, open the flap Z * 0 to the output anemometer sensor 2. where pulses the anemometer 2 and its rotational speed with the middle of the contrasting target 14 and the optical speed sensor in the form of pulses emitted by the pulse transmitter 10 to the lapse receiver 13 of which it is recorded and evaluated on the recording and evaluation unit 12. Pr1 empties through the input anemometer a transducer 6 with an upstream filter 15 and a common outlet 2 of the intake of atmospheric air into the storage tank 1, the volume of which is equal to the volume of the discharged substance. The sucked-in amount of atherosic air proportional to the discharged flight is measured and recorded by the 1-th way as it is to fill the storage tank. In accordance with the invention, it can be used to measure the loss of increment or any liquid or semi-liquid material stored in closed containers. PREBRET V ϊ N A L E Z U It is placed on the meter of liquid and semi-liquid substances, losing weight or growth, preferably in the large-capacity storage tanks indicated by. that at least one inlet (4) and one outlet anemometer (5) of air flow air volume (5) is mounted on the common or separate outlets (3) at the common or separate outlets (3), each of which has a built-in installation in the supply line (6); the flap ΠΙ, the output anemometer sensor Z5Z is connected to the input Z4Z via the speed sensor Z8Z anemometer Z9Z, connected to a common or separate pulse transducer Z10Z, which is a transmission medium / 11 / connected to the recording and evaluation unit Z12Z. 1 drawing