SU954598A1 - Method and apparatus for compensating for pulsations of liquid feed of pump - Google Patents

Description

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FIELD OF THE INVENTION The invention relates to hydraulic engineering and can be applied to various volumetric pumps.

There is a known method for compensating the pulsation of a pump fluid supply with suction and discharge piping, including withdrawing from the injection pipeline a part of the liquid equal to the pulsation value, and returning it, as well as a device for compensating the pulsation of fluid supply with variable volume chambers, containing suction and discharge piping, A device for taking and returning a part of the fluid associated with the pipelines tl.

The ripple compensation device is made in the form of air caps, which determines the impossibility of ripple compensation in a wide range of rotational speeds of the pump drive shaft and low reliability of compensation.

The purpose of the invention is to increase the reliability of compensation.

This goal is achieved by returning the working fluid to the suction pipe synchronously with each pulsation, and the device for extracting and returning a part of the fluid is designed as a multi-chamber hydraulic machine with an input and output line and a shaft, and the shaft of the hydraulic machine is kinematically connected to the pump shaft. it is connected to the discharge pipeline, and the outlet line is connected to the suction pipe, the 5th house of the pump.

FIG. 1 shows a diagram of the device; in fig. 2 is a feed ripple chart.

The device contains a pump 1, which injects 2 and discharge 3 pipelines, shaft A, with which, through gear 5, shaft 6 of a multi-chamber hydraulic machine 7 is connected kinematically, input

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line 8 of which is connected with the beginning of the pulsations, and returning it, about the torch pipeline 3 and resulting in the fact that for the purpose of the pon and 9 from the suction pipe of the reliability of compensation, the working pipe 2. a liquid is returned to the suction operation of the device is liquid s. The conduit pipe is synchronously pulverized by each pump 1 in the pipework.

water 3, having the characteristic of pulsations, 2. A device for compensating the pulp represented in the diagram. One-time rises of fluid with cameras chambered with pump 1 via transfer 5 of a variable volume containing a hydraulic machine 7, which compensates vial and discharge pipelines, which, working synchronously with the pump and sampling device and return 1, is sucked out The discharge part of the fluid, connected to the pipeline 3, is a part of the fluid that is equal to the wires, which distinguishes the uniformity of supply, and supplies it. By the fact that the device for the selection and delivery of the suction pipe 2, the level-15 gate of a part of the liquid is made in the form of wa irregularity of supply of the multi-chamber hydraulic machine from the inlet

The application of the proposed method and the output lines and shaft, the device makes it possible to compensate than the hydromachine shaft kinematically pulsations in a wide range is connected to the pump shaft, the input speed of the drive shaft 20 is connected to the discharge pipe. wire, and the output line - with

Claims (1)

1. Method of compensation of pulsation 1. Berg G. Piston wing liquid supply pump with piping and drainage pumps. L.-M., by States of suction and injection, including scientific and technical oil making selection from injection pipe publishing house, 1933, h, 1, p. L8, the wires of the liquid part equal to wi-fig. kk. pump suction piping. 25 taken into account during the examination Have .