SU1498993A1 - Pulsing device - Google Patents

Abstract

The invention relates to the field of hydraulic engineering. The purpose of the invention is to expand the range of pulsations of fluid pressure. In housing 1, a high pressure channel 3, a pulsation chamber 2, a variable pressure channel 4, a drain chamber 6 connected to the pulsation chamber 2 by low pressure channels 5 and 10 are provided. In channels 3, 5 and 10 adjustable throttles 15, 7 and 11 are installed, respectively. The chamber 6 has a drain interrupter 8, made in the form of a rotating bottom with two rows of circumferentially through holes 9 and 12. The shape, amplitude and frequency of the pulsations determine the rotation speed of the interrupter 8, the number and mutual arrangement of the through holes 9 and 12, and also the amount of liquid to be drained, which is regulated by throttles 7 and 11. 1 sludge.

Description

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The invention relates to hydromashing and can be used in devices to create pulsations of liquid as an example in a test bench of high-hour pressure sensors. The purpose of the invention is to expand the range of pressure pulsations of a fluid. The drawing shows a pulsator. The pulsator consists of a casing 1, in which a pulsation chamber 2, a high pressure channel 3, a variable pressure channel 4, a low pressure channel 5 and an inlet chamber 6 connected to the pulse- low pressure channel 5 are made. and In the low pressure channel 5 there is an adjustable throttle 7, and in the discharge 15 lere 6 a flow interrupter 8 is placed, filled in the form of a rotating disk with circular holes 9 that are evenly spaced around the circumference. In the case I, an additional low pressure channel 10 informs the pulse chamber 2 20 drain chamber 6, in which the additional adjustable throttle 15 is placed.

Cabin pressure pulsation of the working fluid. When the discharge of fluid into the discharge chamber 6 is changed by means of adjustable chokes 7 and II, the shape and amplitude of the pressure pulsations in the low pressure channel 4 change. The ripple frequency is determined by the speed of rotation of the chopper 8 and the frequency of the through holes 9 and 12 in the disk of the chopper 8.

Claims (2)

Invention Formula A pulsator comprising a housing with a pulsation chamber with high, alternating and low pressure channels and a drain chamber connected to the pulsation chamber by a low pressure channel in which an adjustable throttle is installed, while a flow interrupter is installed in the drain chamber interacting with the low pressure channel and made in the form of a rotating disk with uniformly arranged circumferentially through holes, characterized in that, in order to widen the range of the pulsation of the pressure of the working fluid, the pulsation onna camera is equipped Pulsator works as follows. 25 with an additional low pressure channel. Liquid is supplied to channel 3 with a high-pressure throttle, reporting about pressure. Adjustable throttle 15 pulsation and discharge chambers, and in) the flow of fluid into the pulsating rotating disk is completed by an additional chamber. 2. With a closed regulated row of through uniformly arranged throttles 7 and 11, liquid circular holes, the number of holes in the channel 4 of variable pressure. At 30 toths, it does not coincide with the number of the main ones: the digging of one of the throttles 7 or 11 and the openings, with at least npi on (qi DR AT at being driven to the rotation of the chopper 8, begin to drain a part of the liquid from the pulsating chamber 2 into the drain chamber 6 through the crossbar 7 or 11 and the hole 9 or 12. One of the additional openings is located in one radial section with one of the main openings, and the distance between the circles is equal to the distance between the oscillation chamber 2 and, respectively, 35 m of the main and additional channels to the variable pressure open air channel 4. One of the additional holes is located in one radial section with one of the main holes, and the distance between the circles is equal to the distance between the axes of the main and additional low pressure channels.