CS239210B1 - Connecting the hydraulic circuit for pipe cleaning by washing - Google Patents

Abstract

The invention relates to the connection of a hydraulic circuit for cleaning pipes by washing in a closed circuit. The said connection is intended for cleaning pipes by washing with hygienically and fire-hazardous substances so that the leakage of the working medium during manipulation with the washed pipe is minimal. The connection ensures that the entire cross-section of the washed pipe is filled with the working medium and that the pumping-out hydrogenerator is flooded before pumping. During pumping, air is sucked from the reservoir, thus creating a hygienically and fire-safe closed circuit.

Description

239 21 (

The invention and relates to the connection of a hydraulic circuit for pipe cleaning by washing in a closed circuit »

The prior art hydraulic circuit for pipe cleaning is a simple hydraulic circuit where a cylinder, a pump, a cleaned pipe and a tank are connected in series. This connection has an open hydraulic circuit in which there is excessive contamination of the working environment due to leakage of the cleaning medium during the disassembly of the washed pipe. Washing »Such a connection is particularly unsuitable for hygienic and flammable media.» Navise does not provide a reliable filling of the whole of the prewash tubes. pipe cross section.

The above disadvantages are eliminated by the engagement of a hydraulic circuit for cleaning the tubes by washing, consisting of a purge medium reservoir to which a washing hydrogen generator is connected, the outlet of which is connected to the inlet connection of the wash tube, the other end of which is connected to the outlet connection of the invention, the principle is that the first regulating valve is connected to the inlet diverter and the inlet connection, and a second regulating valve is connected downstream of the outlet duct, the outlet of which is connected to the reservoir, wherein a third regulating valve is connected in front of the inlet connection. a bad valve whose outlet is also connected to the reservoir »Between the outlet connection and the second regulating valve, a pumping pump is connected in parallel, the outlet of which is connected to the reservoir via a fourth regulating valve, with The control valve and the inlet connection are a parallel-connected valve, the outlet of which is connected to the air part of the container »239 210-2 - The advantage of connecting the hygrometric circuit to cleaning by a tube wash according to the invention is that the cleaning medium is pre-disassembled pipes from the circuit, so that it does not evaporate and pollutes the working environment. The mentioned hydraulic circuit ensures that the entire cross-section is filled with cleaning media, so that cleaning is as effective as possible.

An example of the connection of a hydraulic circuit for cleaning the pipes by washing according to the invention is shown in the accompanying drawing.

The connection of the hydraulic circuit according to the invention consists of a cleaning medium 8 to which a washing pump 1 is connected, the outlet of which is connected via a first control valve 4 to an inlet connection 2. One end of the washed pipe 11 is connected to the inlet connection 2 and the second pipe 2 is connected to it. the end is connected to the output connection 10 behind which is connected the second regulating valve 8, the outlet of which is connected to the reservoir 8. In front of the inlet port 2, the P " is connected to the regulating valve 2 " which is also connected to the reservoir 8 " 10 and the second regulating valve 8, the pumping pump 2 is connected in parallel, the outlet of which is also connected to the reservoir 8 The output of the second, third, fourth regulating valve 2, 6 is connected to the reservoir 8 via a counter-clock 14. valve 2 and inlet port 2 A valve 2 is connected in parallel, the outlet of which is connected to the air reservoir portion 8. The reservoir 2 is provided with a non-locking fuse in its upper part.

The washing pump 1 is the cleaning medium sucked from the container 2 and extruded through the first regulating valve 2, the rinsed tube 11 through the second regulating valve 8 and the anti-radiation device 14 into the reservoir 2, the secondary regulating valve ensures its full charge. the cross-section of the washed pipe 11 with the cleaning medium. When washing pipes with smaller flow cross-sections and complex shapes in which the pressure drop is greater, the flow rate is realized by the third regulating valve 2 ' 239 210 overloaded with a cleaning medium, which, in operation of the washing pump 1, provides a fourth control valve 6, a fourth control valve 8, by its pre-loading, to prevent flow through the pump 2 if it is not operating by switching off the washing pump 1 and switching it on; the pumping pump 2 is pumped out of the purging tube 11, and the air is sucked out of the pail 8 by the check valve 2 in order to close the air circuit »The pail 8 is vented through a non-leakage fuse 13» When purging the purging medium by pumping the pumping device 2 from the purged tube 11 «first ; the second and third regulating bad valves are able to supply the purge medium to the scrubbed tube. This ensures good purge of the scrubbing medium from the washed tube 11 and minimal leakage of the scrubbing medium when the scrubbed tube 11 is disconnected after the wash is finished. the pumping is visually checked on the inspection slide 1.2. »

Claims (2)

239 210 -4- FIXED EMBODIMENT 1 Connection of a hydraulic circuit for cleaning the mercury rinsing by washing it from a cleaning media reservoir to which the washing pump is connected, the outlet of which is connected to an inlet connection of the washed line, the other end of which is connected to the output connection is characterized by the fact that the intermediate regulating valve (3) and the second regulating valve (4) are connected downstream of the outlet connection (10) and the outlet regulating valve (8) is connected to the reservoir (8) wherein, in front of the inlet connection (9), there is a parallel connected third regulating valve (5), the outlet of which is also connected to the reservoir (8). with the connection (10) and the second regulating valve (4), a pumping pump (2) is connected in parallel, the outlet of which is on connected to a container (8) via a fourth regulating valve (6), wherein a connected valve is connected between the first regulating valve (3) and the inlet connection (9), the outlet of which is connected to the air part of the reservoir ( 8 / «, 1 drawing