SU1390317A1 - Apparatus for pulsed agent treatment of holes - Google Patents

Description

(21) 3965389 / 29-33

(22) 10.10.85

(46) 04.23.88. Bksh. Number 15

(71) All-Union Scientific Research Institute of Water Supply, Sewage of Hydraulic Structures

and hydrogeology engineering vodgeo

(72) M.S.Tarshish and V.T. Grebennikov (53) 628.112.2g004.55 (088.8) (56) USSR Author's Certificate No. 1028908 Cl. F 15 B 21/12, 1980.

USSR Author's Certificate No. 977730, cl. E 21 B 43/18, 1982.

(54) DEVICE FOR PULSE-REAGENT-GENT WELLS

(57) The invention relates to the construction and operation of groundwater intakes, vertical drainage systems, in particular, devices for cleaning and treating well filters. The purpose of the invention is to improve the quality of well cleaning by increasing the frequency of pressure pulsations of the reagent. Device for transmitting pulsations in the form of a tank 1. with a meme

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SO with about with

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The base 2 in the lower part, below which the spring 5 is located on the support 3 with the pins 4, is placed in the reagent previously pumped into the filter cavity. Through the stem 6, entering the sleeve 7 with the seal 8 and the guide sleeve 9, the membrane 2 communicates with the speed sensor 11 connected to the rod 6 by a nut 10. The housing of the device 16 is fixed to yiiTbe well 17 by means of support 13, section filter from the rest of the zone with a sealing element; cop. 19. A oscillator of pulsations 20 with a drive 21 provides pressure oscillations in the liquid. one .

The invention relates to the construction of -HUs and the operation of water intakes of groundwater, vertical drainage systems, in particular, to devices for cleaning the treatment of well filters.

The purpose of the invention is to improve the quality of well cleaning by increasing the frequency of pressure pulsation of the reagent.

The drawing shows a device for pulse-reagent well treatment. | incision.

The device comprises a device for transmitting pulsations in the form of a tank 1, provided in the lower part with a membrane 2, below which is located on the support 3 held by pins 4, a spring 5. The membrane 2 is connected to a shaft 6 entering the sleeve 7 attached to the tank 1 A seal 8 and a guide sleeve 9 are located in the sleeve 7. Speed sensor 11 is fixed to the upper end of the shaft 6 by means of a nut 10. The container 1 is equipped with fittings 12 and 13 to which high pressure pipelines 14 and 15 are connected. The housing 16 is fixed to the wellhead 17 of the well with the aid of the support 18. A sealing element 19 is installed on the housing 16 of the upper filter.

Pipeline 14 is connected to a pressure pulsation generator 20, the drive 21 of which is connected to the control system of the pulsator 22 connected by cable 23 to a speed sensor 11. Circuit circulating in a closed circuit: tank 25, pump 26 with pressure reducing valve 27, hydraulic accumulator 25, throttle 24, pipeline 15 with nozzle 13, capacity 1, pipeline 14 with nozzle 12, Pulsation generator 20 and tank 28 pressure fluctuations in tank 1 The diaphragm 2 is moved, which is transmitted to the reagent. The pulsation frequency is controlled by the pulsator control system 22, which receives information on the cable 23 from the speed sensor 11 and acts on the pulsation generator 20 using the drive 21c 1 sludge.

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five

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five

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five

The conduit 15 is connected via a throttle 24 to a hydraulic accumulator 25 connected hydraulically to a pump 26 having a reduction valve 27. The pump 26 communicates with the tank 28, to which the pulsation generator 20 is also connected.

The device works as follows.

A reagent is pumped into the filter cavity, the device is mounted, the support 18 is fixed at the mouth 17 and the filter is separated from the rest of the well zone by a sealing element 19. The container 1 is immersed in the reagent. When the pump 26 is turned on, the auxiliary liquid from the tank 28 through the hydroaccumulator 25 and the throttle 24 through the pipeline 15 enters the tank 1. The pressure oscillations in the tank 1 are provided by the pulsation generator 20, the drive 21 of which is turned on simultaneously with the pump 26 The pulsator 20 performs periodic throttling the flow of fluid discharged from tank 1 through line 14. Auxiliary fluid begins to circulate in a closed loop: tank 28, pump 26 with reducing valve 27, hydroaccumulator 25, throttle 24, pipe water 15 attached to the nozzle 13, the container 1, a conduit 14, to the nozzle 12 prisoedinenny, ge- generator of 20, the tank 28.

The pressure fluctuations in the tank 1 cause the diaphragm 2 to move: as the pressure rises, the spring 5 mounted on the support 3 fixed to the pins x 4 is compressed, and when the pressure is lowered it opens.

Pressure fluctuations through membrane 2 are transferred to the reagent in the well filter, crushing it over the filter circuit in the form of a pulsating flow along the entire length of the filter, which significantly increases the mass transfer coefficient in the colmatant – reagent system. The frequency of oscillation of the reagent depends on the frequency at which the pulsation generator 20 has, having an adjustable drive 21. The pulsator control system 22 changes its rotation frequency to obtain the maximum speed of movement of the membrane 2, the input signal through the cable 23 from the speed sensor 11, with which stem 6, which slides in guide sleeve 9, is connected. Leakage of auxiliary liquid from tank 1 to speed sensor 11 fixed by nut 10 in bore of bore is prevented by seal 8 placed in sleeve 7,

The speed sensor can be selected from any of the known types, in particular, you can use the sensor appliance Editor M. Blanar

Compiled by G. Ershov Tehred L. Serdyukova

Order 1743/32

Circulation 676

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

ten

15

20

25

thirty

chapters for changing vibration speeds

The end time of the pulse reagent treatment is determined by any known method, for example, by stabilizing the electrical resistance of the reagent. After the treatment, the equipment is dismantled and the well is pumped to remove the reaction products and the residual amount of the reagent.

Claims (1)

Apparatus for pulsed well treatment, comprising a pressure pulsation generator, a housing with a sealing element, pipelines communicated with the housing, and a device for transferring pulsations to a reagent, characterized in that, in order to improve the quality of well cleaning, Increasing the frequency of the pressure pulsation of the reagent, it is equipped with a spring-loaded membrane located in the lower part of the pulsation transfer device, KQTopoe is made in the form of a container filled with liquid and connected with pressure pulsation generator. Proofreader A.T. sko Subscription