SU1330210A1 - Installation for cleaning inner spaces of articles - Google Patents

Abstract

The invention relates to equipment for cleaning products using ultrasound, in particular for cleaning internal cavities of manometric sensors. The purpose of the invention is to improve the quality of cleaning. After fixing the pressure gauge 5 to be cleaned, waveguide 2 is turned on and vacuum valve 18 is opened and valve 17. The vacuum in the system is monitored using a vacuum gauge 20, valve 17 is closed, and valve 7 is opened. Washing liquid from tank 9 enters collector 4 and from there axial channel 3 enters the cavity of the cleaned manometer 5 and simulator 22. After they are filled, the valve 7 is closed, the ultrasonic oscillation transducer 1 is turned on at the same time, and the control valve 12 is opened, through which pressure is passed through pre-installed pressure reducers 14 Compressed air acts on the liquid through the liquid column in conduit 6 feeding working agents (higher knee ob- different U-tube). At the same time, a part of the fluid from the pipeline 6 is forced through due to a decrease under pressure o S (L C l No. CO 00 O south o

Description

vapor volume, and also due to condensation and dissolution. Simultaneously with the opening of the valve 7, the generation of ultra-eukonic oscillations is turned on and cleaning takes place under pressure-1em with water.

The invention relates to equipment for cleaning products using ultrasound, in particular dg. cleaning the internal cavities of manometric sensors.

The purpose of the invention is to improve the quality of cleaning.

. The drawing shows a schematic diagram of the installation:.

The installation contains an ultrasonic oscillation transducer I, connected to an ultrasonic generator (not shown) through waveguide 2, in which an axial channel 3 is connected to a collector 4 for connecting pressure gauges 5 to be cleaned. The collector 4 is connected through a valve through supply pipe for working agents. 7 to the pipeline 8 for supplying working fluid from the pressure tank 9, and through the valve 10 to the pipeline 11 for supplying compressed air, and through the control valve 12 to the pipeline 13, which through a reducer

14 is connected to the compressed air supply line 11 for purging. The working agent supply pipe 6 for increasing its internal volume is made in the form of a U-shaped tube and its descending part is made with an internal tank whose volume exceeds 1.5, the total internal volume of the gauge sensor and collector to be cleaned, and the entrance to the pipeline 6 supply of working agents located above, the collector 4. The collector 4 is equipped with a drive reciprocating motion (not shown) On the opposite side of the collector

4 is connected via a drain valve

15 with a discharge line 16 and with a regeneration unit (not shown) through a valve 7 with a vacuum system, including a vacuum pump 18

a trap 19 vapor, a vacuum gauge 20 and

330210

the action of ultrasonic vibrations. The design features of the installation intensify the process, ensuring a high degree of purification. zp f-ly, i silt,

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drain valve 21. A collector 4 can communicate with several Mains, each of which is installed respectively on its own waveguide connected to a respective ultrasonic oscillation transducer, the series of which can be supplied from a single generator by means of a switch. The bottom of the visual control of filling and drain on the collector can be installed transparent simulator 22, made in the form of the part being cleaned (Bourdon tube).

Turning on and off valves, valves and switching the generator output to one or another converter, as well as turning the collector 4, is performed by means of a software device.

Synchronous switching on of the ultrasonic oscillator and controlled valve 12 can be carried out from the same electromagnetic relay in accordance with generally accepted circuits (not shown). Reducer 14 allows cleaning at fluid pressures acceptable for a particular type of gauge sensors, or optimal ultrasonic degassing and cleaning processes in the fluid.

The installation works as follows.

After closing: the alene of the cleaned manometer 5 to the waveguide 2 turn on the vacuum pump I8 and open the valve 17. When the required vacuum in the system is controlled by a vacuum gauge 20, the valve 17 is closed to open the valve 7. As a result, the washing fluid from the tank 9 enters the collector 4 , and from it axially: at kangshu 3 enters the cavity of the cleaned manometer 5 and imitation 31

torus 22. After filling the valve

7 close, simultaneously turn on the ultrasonic generator and open the valve 12, through which the compressed air acts on the liquid through the liquid column through a pre-installed pressure reducer 14

in the capacity of the pipeline 6 supply of working agents (a higher knee of the I-tube). At the same time, part of the fluid from the pipeline is forced by reducing the volume of vapor under pressure, as well as by condensation and dissolution (according to Henry's law). When exposed to ultrasonic vibrations, the process of dissolving vapor-gas bubbles is significantly intensified. Simultaneously with the opening of the valve. 7, the generation of ultrasonic oscillations is turned on and pressure cleaning with the influence of ultrasonic oscillations occurs, while the reciprocating rotary movement of the collector 4 is turned on during filling and switched off after the washing liquid is drained. In the case of simultaneous cleaning at the facility, several manomes by means of a switch installed between the transducer and the ultrasonic oscillator, alternately switch the transducers into the output circuit of the generator and, accordingly, alternately clean the pressure gauges. This reduces the preparatory time required for filling and draining from each gauge, as well as the energy and space occupied by the equipment. After cleaning the gauges 5, close the valve 7 and first open the valve 15 and then the valve 10.

8 the initial moment of the pair left in the pressure gauges 5 to be cleaned, and the compressed air in the pipeline 6 push the washing fluid into the main

16, and after opening the valve 10, purge the system. As a result of the injection, the washing liquid is removed from the pressure gauge 5 to be cleaned to the manifold 4 and to the drain line 16, where it is separated from the air. After that, the valves 10 and 15 are closed, and the cleaned pressure gauge 5 is removed from the waveguide 2. Then other pressure gauges are set, and the cleaning cycle is repeated. The process of filling gauges can be controlled by a transparent imitation

torus 22, which completely repeats the shape of the object to be cleaned.

The design features of the installation allow for cleaning the volume of steam cavities both in microvolumes (at the top of the objects to be cleaned) and in microvolumes at the level of vapor-gas bubbles in the liquid (translation of pulsating bubbles into cavitating ones), and the cleaning fluid is cavitating bubbles, as well as ensuring the sequential processing of the entire surface of the object being cleaned, the path of its back-turning movement around the collector axis. In addition, the use of the proposed unit allows to intensify in the ultrasonic field the process of condensation and dissolution of vapor-gas cavities formed after filling the objects to be cleaned with a washing liquid when external static pressure is applied.

Claims (2)

1. An installation for cleaning the internal cavities of products, mainly manometric sensors, containing an ultrasonic generator, an ultrasonic vibration transducer connected to a waveguide, the waveguide being made to a channel connected on the one hand, through the manifold with the supply pipe of working agents and compressed air for purging, and on the other hand, through the shut-off valves, with a vacuum and discharge systems, characterized in that, in order to improve the quality of cleaning, it is equipped with a complementary pipeline with a reducer and control an additional valve is connected to the supply pipe for working agents and to the compressed air supply line, the volume of the pipeline connecting the waveguide channel to the connection, the supply pipelines working agents with an additional pipeline, equal to the sum of 1.5 volumes of cleaned cavities and the volume of the collector. 2. The installation according to any one of the preceding claims is that it is equipped with a drive for the oscillatory movement of the collector.