SU1215732A1 - Apparatus for automatic recovery of vacuum filter - Google Patents

Description

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The invention relates to devices for the automatic regeneration of vacuum filters and can be used for the purification of oil-containing water, for example, in a machine-house of ship compartments.

The purpose of the invention is to increase the reliability of the device.

The drawing shows a schematic diagram of the device.

The device consists of a chamber 1 provided in the lower part with an inlet nozzle 2 with an automatic shut-off element made in the form of a float 3, an air inlet nozzle 4 with a non-return valve 5, and in the upper part an air and water outlet pipe 6 equipped with an automatic valve 7 s an actuator 8, for example, of the membrane type; A flushing water supply pipe 9 with an electromagnetic valve 10 is connected to the nozzle 2. The pipeline 6 is connected to the lower cavity of the vacuum filter 11 equipped with a granular load 12, a pipeline 13 for introducing oily water with a non-return valve 14, a pipeline 15 for flushing water flushing with a non-return valve 16, a pipeline 17 for discharging purified water with a non-return valve 18 connected to the pump inlet 19 of the pump 19. The discharge pipe of pump 19 is connected to the pipeline 20 for draining the side of the vessel, equipped with a spring-loaded valve 21. The pipeline 9 for supplying flush water is connected to pipeline 22 with pipeline 17 to discharge purified water.

The device for automatic regeneration of the vacuum filter works in the following manner.

Oily water at atmospheric pressure through the pipeline 13 enters the vacuum filter 11, is cleared of petroleum products, and through the pipelines 17 and 20 is pumped out by the pump 19 overboard the vessel. At the same time, the clean wash water is pumped out by pump 19 from chamber 1 along the

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pipelines 9, 22, 17 and valve 21 overboard. The air replacing the water that is pumped out of chamber I enters through valve 5 and pipe 4.

The automatic valve 7 with the actuator 8 ensures the separation of the internal cavities of the vacuum filter 11 and the chamber 1, which

It eliminates the entry of air from the atmosphere into the vacuum filter 11. This is due to the fact that due to the pressure difference above and below the operating mechanism 8, the shut-off element of the automatic valve 7 is tightly pressed to the saddle, blocking the flow area of the pipeline 6. After pumping water from chamber 1 float

3 closes the inlet of the nozzle 2, excluding the flow of air into the pump 19. Thus, in the process of cleaning the oily water, water from the chamber 1 is removed

and the chamber is filled with air at atmospheric pressure.

When regenerating the granular charge 12 of the vacuum filter 11, the solenoid valve 10 is opened

and the pump 19 stops. At the same time, flushing water under pressure enters the chamber 1, and vacuum is reduced in the vacuum filter 1 due to the pump 19. The pressure above and below the membrane actuator 8 is equalized, the shut-off element of the automatic valve 7 is opened below pressure generated in the chamber with wash water.

As the chamber 1 is filled with water, air is displaced from it and through the pipeline 6 enters the vacuum filter 11, causing sparging and mixing of the layers of its granular load 12,

After the air is displaced from the chamber, water begins to flow into the vacuum filter 11, washing the granular charge 12.

Claims (1)

(57 A device for automatic REGENERATION of a VACUUM FILTER, comprising a pipeline for supplying pro- and washing water to a vacuum filter equipped with a chamber with a shut-off element located in its lower part, a pipe for introducing air into the chamber with a non-return valve and a pump characterized by that, in order to increase the reliability of operation, the device comprises a valve g with an actuator mounted on the wash water supply pipe between the vacuum filter and the chamber, while the actuator is made of a membrane and its membrane cavity communicates with the conduit supplying the washing water, and nadmembrannaya cavity - with the atmosphere ©.