SU1514980A1 - Positive displacement pneumatic pump - Google Patents

Abstract

The invention can be used to pump various fluids. The aim of the invention is to increase productivity by evacuating the pump casing during its filling. The pneumatic replacement pump includes a housing 1 with a float (P) 2 placed inside it, made in the form of a variable-section vessel, a nozzle 3 for supplying compressed gas, a drain valve equipped with permanent magnets 6.7, including a central nozzle (CS) 8 blocked by a damper 9 and an additional nozzle (DS) 10 placed coaxially to the CA 8 and communicated with the latter, while the cavity of the housing 1 is connected to the CA 8, and the nozzle 3 to the DC 10. At the time when P 2 is in the floating position and the drain valve open, gas from pipe 3 enters In the gap between the CA 8 and DS 10, which work as an ejector, the pressure in the housing 1 drops and it is rapidly filled. Filling with liquid, P 2 sinks and the drain valve closes, after which the gas from nozzle 3 enters the body 1 to displace fluid from it. 1 il.

Description

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ate

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with

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is in the floating position and the valve is open, the gas from the nozzle-3 enters the gap between the CA 8 and DC 10, which work as an ejector, the pressure in the housing 1 drops and it is rapidly filled. Filling with liquid, P 2 sinks and the drain valve closes, after which the gas from the pipe 3 enters the body 1 to displace the liquid from it. 1 il.

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The invention relates to pump | It can be used for pumping various liquids.

The purpose of the invention is to increase productivity by evacuating the j orpus pump when it is filled.

The drawing shows a pneumatic - replacement pump, general view.

A pneumatic replacement pump will contain the housing 1 with the float 2 placed inside the vessel of variable section, patru- located inside it. side 3 of the compressed gas supply, suction and discharge nozzles 4, 5, and a drainage valve equipped with permanent magnets 6, 7 and including a central nozzle 8, closed with a slider 9 connected to the float 2 and a permanent magnet 6. The drain valve is equipped also an additional nozzle 10, placed coaxially with the central nozzle 8 and communicated with the Last. The cavity of the housing 1 is connected to the Central nozzle 8, and the pipe 3 supplying compressed gas to the additional nozzle 10,

The pump works in a manner that

At the point in time when the float 2 is empty and in the float position, the drain valve is open, Q At the same time, the flap 9 is in the upper position. Compressed gas through Pat-, cuttings 3 enters the central and additional nozzles 8, 10, at the same time, as a result of ejection, the pressure inside. the central nozzle 8 and the housing 1 falls „which contributes to a quick 30

35

five

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0

Q.

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five

filling the housing 1 with the pumped liquid through the suction nozzle 4. After filling the housing 1 and the float 2 with liquid, the latter sinks, the drain valve closes, and the gas through the additional nozzle 10 starts to flow into the housing 1, causing the liquid to flow out of it pipe 5 to the consumer.

After this, the pump cycle is repeated.

Claims (1)

Invention Formula A pneumatic replacement pump, comprising a housing with a float arranged inside it, made in the form of a variable-section vessel, a compressed gas supply spout, a suction and discharge nozzles and a drainage valve J equipped with a permanent magnet w and including a central nozzle blocked by a valve connected to the float and with one of the magnets, wherein the nozzle is in communication with the housing cavity and the compressed gas supply nozzle, characterized in that, in order to increase productivity by evacuating the pump housing and its filling, the drain valve is equipped with an additional nozzle 5 placed coaxially central and communicated with the latter, while the body cavity is connected to the central nozzle, and the nozzle supplying compressed gas to the additional one.