SU761035A1 - Apparatus for washing parts - Google Patents

Description

The invention relates to the field of cleaning parts with a liquid medium and can be used in mechanical engineering.

A device for washing parts is known, which contains a working chamber connected by a pressure pump with a bath located under it, a receiving tank for cleaning solution equipped with a heat exchanger and connected to the bath, hydrocyclone, sump, water tank with demulsifier, heat exchanger and recirculation pump whose suction nozzle it is connected to a bath and a water tank with a demulsifier, and the delivery tank is connected to a hydro cyclone {1].

The disadvantage of this device is the duration of the process of regeneration of the washing solution; caused by the need to conduct this process in the receiving tank, which leads to contamination of its walls and the heat exchanger placed in the tank.

The aim of the invention is the acceleration of the regeneration process.

This goal is achieved by the fact that the device is equipped with a tank for regeneration, connected to the sump and a recirculation pump, the heat exchanger is located inside the tank for regeneration, and the sump is connected to the suction nozzle of the recirculation pump.

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The drawing shows a schematic diagram of a device for washing parts.

The device contains a working chamber 1, a receiving tank 2 for the washing solution, 5 equipped with a heat exchanger 3, a bath 4 located under the working chamber 1, connected with it by a pressure pump 5. The receiving tank 2 is connected through a pipe 7 through a pipe 7 to a bath 4. The device It also has a hydrocyclone 8, in the upper part it is connected with the receiving tank 2, and through taps 9 and 10 - with the inlet pipe 11 of the recirculation pump 12. In the lower part, the hydrocyclone 8 through the valve 15 13 is connected to the sump 14. The recirculation pump 12 with the suction pipe 15 through crane 1 6 is connected by pipelines to the lower parts of the bath 4 of the settler 14 and, via a check valve 18, to the lower 20 part of the water tank 17 with the demulsifier. The inlet pipe 11 of the recirculation pump 12 is connected by a pipe 19 to a tank 20 for regeneration of the washing solution, inside which heat exchange 25 is placed 21. In the lower part the tank 20 through a valve 22, a pipe 23 and taps 24 n 16 is connected to the suction pipe 15, and through a valve 25 - with a sump 14. A crane 10 with a pipe 26 connects the recirculating pump 30 to the dump 12.

761035

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The device works as follows.

A part of the cleaning solution prepared and heated in the receiving tank 2 is fed by gravity through the pipeline 7 to the bath 4 through the valve 6, the opening of which is controlled by a predetermined level of the bath 4. The washing solution through the nozzle system in the form of a set of differently oriented jets is controlled by a pressure pump 5 movement inside the working chamber 1. The spent cleaning solution flows into the bath 4. At the same time, from the bath 4 a recirculation pump 12 is lower in performance than the pump 5, the washing solution for cleaning the drain It goes through two-way valves 10 and 9 into the hydrocyclone 8 and then into the receiving tank 2. After the washing process is completed, the pump 12 operates until the cleaning solution is completely pumped out of the bath 4. The mechanical inclusions accumulating at the bottom of the hydrocyclone 8 periodically through the spool valve 13 are discharged into the sump 14 . Release of the sump is possible without interruption of the washing process. Precipitation of high hardness water with a demulsifier from the washing solution is carried out in two steps.

Part of the cleaning solution from the receiving tank 2 is poured into the bath 4 through the pipeline 7 to a predetermined level, from where pump 12 is fed into the tank 20 for regeneration. From the movable tank 17 hard water with a demulsifier pump 12 is fed into the tank 20 through a check valve 18 and taps 24, 16, 10 and 9. In the tank 20, the cleaning solution is heated by the heat exchanger 21 and in the process of cooling a falling of flakes of suspended suspensions occurs. The remaining cleaning solution in the tank 2 is discharged into the bath 4. The regenerated cleaning solution from the tank 20 by pump 12 through a one-way valve

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18, the pipe 23 and the valve system is supplied to the tank 2.

Accumulated in the sump 14 waste pump 12 is pumped to the dump through the pipeline 26. The sump 14 is washed with the remnants of the regeneration process, located below the level of the crane 22, and the waste is also dumped into the dump. With the remaining part of the washing solution remaining in the bath 4, the regeneration process is repeated in the same sequence.

Since the regeneration of the washing solution is carried out not in the receiving tank 2, but in the special tank 20, the walls of the tank 2 and its heat exchanger 3, as well as the washing solution are practically eliminated, and thus the quality of washing is improved and the regeneration process is accelerated.

Claims (1)

Claim A device for washing parts, containing a working chamber connected by a pressure pump with a bath below it, a receiving tank for cleaning solution equipped with a heat exchanger and connected to a bath, hydrocyclone, sump, water tank with demulsifier, heat exchanger and recirculation pump whose suction nozzle is connected with a bath and a water tank with a demulsifier, and an inlet - with a hydro cyclone, characterized in that, in order to accelerate the regeneration process, it is equipped with a regeneration tank connected to the settling tank ohms and a recirculating pump, a heat exchanger located within the tank for regeneration, and the sump is connected to the suction pipe of the recycle pump.