SU1368503A1 - Pneumatic displacement pump - Google Patents

Abstract

The invention makes it possible to increase the reliability of the pump by allowing the filter to be cleaned. The bypass- | Nish pipeline 8 is equipped with a shut-off valve and communicates the chamber 1 with the area of the suction channel 3 located between the filter 4 and the valve 5. The shut-off valve may be. it is supplied with a pneumatic actuator with an pneumohighway. The latter is connected to the gas distributor 7. When the pressure in the chamber increases, the valve 5 closes, the gas flows through the pipeline to the filter and cleans it. The amount of gas entering the filter is controlled by a shut-off valve, the mode of operation of which is determined by a pneumatic actuator. 1 hp f-ly, 2 ill.

Description

f

CHANEG

with

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Par.1

one

The invention relates to a pump ™ (Structure ... and concerns pneumatic jjiacocoB replacements,

; The aim of the invention is to increase reliability by allowing the filter to be cleaned, I FIG. 1 shows a diagram of: aaa; Fig, 2 is the same, with a pneumatic actuator and pnevmagistrlyu.

The pneumatic replacement pump contains chamber 1, pressure 2 and intake: 3 channels, on the last of which filter 4 and inlet valve 5 are installed, compressed gas pipeline 6 with gas distributor 7, bypass pipeline 8 equipped with a shut-off valve 9 and communicating chamber 1 with suction channel area 3, ras ™

13685032

water enters the filter 4 and cleans it. The amount of compressed gas entering the filter 4 is controlled by a locking valve 9, the mode of operation of which is determined by the pneumatic actuator 10 connected to the gas mains 11 with the gas distributor 7.

Claims (2)

10 formula for gain 1, A pneumatic replacement pump containing a chamber, a pressure and suction channels, on the last of which 1 are installed a filter and an inlet valve, and a compressed gas pipeline with a gas distributor, so that increase reliability by providing placed between the filter 4 and the inlet 20 of the possibility of cleaning the filter, the pump with valve 5, the shut-off valve 9 is equipped with a bypass pipe, 10 pneumatic actuator 10 with pneumatic main 1 1, at the same time last connected to gas distributor 7, When the chamber 1 is connected to the atmosphere, it is filled with liquid through the suction channel 3, When compressed gas is supplied through the pipeline 6 through the gas distributor 7, the pressure in the chamber 1 rises, the valve 5 closes and the gas through thirty a shut off valve and connecting the chamber with the area of the suction channel located between the filter and the inlet valve, 2. A pump according to claim 1, characterized in that the shut-off valve is provided with a pneumatic actuator with a pneumatic magnetostroke, the latter being connected to a gas distributor Formula of gain 1, A pneumatic replacement pump containing a chamber, a pressure and suction channels, the last of which is equipped with a filter and an inlet valve, and a compressed gas pipeline with a gas distributor, so that, in order to increase reliability by providing a shut-off valve and a connecting chamber with a suction channel area located between the filter and the inlet valve, 2. A pump according to claim 1, characterized in that the shut-off valve is provided with a pneumatic actuator with a pneumatic magnetostroke, the latter being connected to a gas distributor