SU840533A2

SU840533A2 - Hydraulic monitor nozzle

Info

Publication number: SU840533A2
Application number: SU792775966A
Authority: SU
Inventors: Виктор Борисович Потоцкий
Original assignee: Институт Горного Дела Ан Казахскойсср
Priority date: 1979-06-04
Filing date: 1979-06-04
Publication date: 1981-06-23

Description

(54) НАСАДКА ГИДРОМОНИТОРА(54) INSTRUMENT HYDRO-MONITOR

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Изобретение относитс к гидроударным устройствам дл создани импульсных струй и нагнетани жидкости.BACKGROUND OF THE INVENTION The invention relates to hydropercussion devices for generating pulsed jets and pumping fluid.

По основному авт. св. № 631658 известна, насадка гидромонитора, включающа наружный, внутренний и промежуточный патрубки с каналами и днищем , образующие, между собой кольцевые каналы, подпружиненный ступенчатый клапан и переходник, причем насадка снабжена ввинчиваемой в промежуточный патрубок втулкой, выполненной снаружи в виде крестовины с отверсти ми на концах дл фиксации е пальцам в гнезде тОрца наружного патрубкаС .According to the main author. St. No. 631658 is known, the nozzle of the jetting device, including outer, inner and intermediate nozzles with channels and bottom, forming between them annular channels, a spring-loaded stepped valve and an adapter, the nozzle provided with a sleeve screwed into the intermediate nozzle, made outwardly in the form of a cross with holes on ends for fixing the fingers in the socket of the outer pipe socket.

Недостаток известной насадки состоит , в том, что она малоэффективна при нагнетании воды в высоконапорный трубопровод из-за большой инертности нагнетаемой без помощи компенсгатора и обратного клапана жидкости, и следовательно, .низкой производительности ее нагнетани .A disadvantage of the known nozzle is that it is ineffective when injecting water into a high-pressure pipeline due to the large inertia of the fluid being injected without the help of a compensator and non-return valve, and, consequently, a low discharge rate of its injection.

Целью изобретени вл етс повышение производительности.The aim of the invention is to increase productivity.

Указанна цель достигаетс тем, что насадка гидромонитора снабжена пружин о-пор невым компенсатором, сообщенным с отверстием втулки.This goal is achieved by the fact that the nozzle of the jetting device is equipped with springs with an on-line compensator in communication with the hole in the sleeve.

При этом отверстие втулки сообщено с полостью внутреннего патрубка через обратный клапан.In this case, the opening of the sleeve is communicated with the cavity of the inner tube through a check valve.

На чертеже представлена насадка гидромонитора в разрезе.The drawing shows the nozzle of the jet in the section.

Насадка гидромонитора содержит наружный 1, внутренний 2 и промежуточный 3 патрубки с каналами4, 5 и 6, соответственно, и днищем 7, об0 разующими между собой кольцевые ка налы 8, подпружиненный ступенчатый клапан 9 и переходник 10. Насадка гидромонитора снабжена ввинчиваемой в промежуточный патрубок 3 втулкой 5 11, выполненной в виде крестовины с отверсти ми 12 на концах 13 дл фиксации ее пальцем 14 в гнезде 15 торца 16 наружного патрубка 1.The nozzle of the monitor contains external 1, internal 2 and intermediate 3 nozzles with channels 4, 5 and 6, respectively, and a bottom 7 forming between each other annular channels 8, a spring-loaded step valve 9 and an adapter 10. The nozzle of the jetting monitor is fitted with an intermediate nozzle 3 screwed in sleeve 5 11, made in the form of a cross with holes 12 at the ends 13 for fixing it with a finger 14 in the nest 15 of the end 16 of the external nozzle 1.

Пружинно-поршневой компенсатор 17 Spring-piston compensator 17

0 сообщен с отверстием 18 втулки -Ц, которое сообщено с полостью 19 внутреннего патрубка 2 через обратный клапан 20. В отверстии 18 установлена пружина 21 обратного клапана 20, 5 перекрывающего сопло 22 втулки 11, в конторой выполнены радиальные каналы 23.0 communicates with the hole 18 of the sleeve-C, which is communicated with the cavity 19 of the inner pipe 2 through the check valve 20. In the hole 18 is installed spring 21 of the check valve 20, 5 blocking the nozzle 22 of the sleeve 11, the office has radial channels 23.

Claims

JKo sleeve 11 is attached to the nozzle 24 with the ability to rotate dOKpyi of the longitudinal axis, and to the nozzle 34 is connected to the 840533 discharge pipe (not shown). The outer pipe 1 is provided with an exhaust fitting 25. A spring-piston compensator 17 consists of a piston 26, preloaded by a spring 27 and an adjusting screw 28. The channels 29 of the compensator 17 communicate through a piston cavity (not shown) with the opening 18 of the sleeve 11. For communication Channels 4 and 5 between each other in a spring-loaded step valve have an annular groove 30, Bottom 7 divides the inner pipe 2 into two cavities 19 and 31. Adapter 10 is connected to a successful pipeline and a resonator (not shown). Jet nozzle works as follows. During its movement, the working fluid, entering through the channels 29 under the piston 26, moves it upwards, compressing the spring 28. The shock wave hydraulic propagates along the shock conduit to the resonator and returns from it. After the overpressure phase, the underpressure phase occurs, equal in duration to the first one, during this period the spring-loaded step valve 9 returns to the initial position, opening water access through the exhaust fitting 25, thus blocking the communication between the channels 4 and 5 and the spring 27 moves the piston 26 downward, displacing the working fluid from under pores 26 through the channels 29, the radial channels 18 and the nozzle 24 into the discharge pipe. The flow of working fluid through the nozzle 22 of the sleeve 11 is stopped, the check valve 20 closes the nozzle 22, and the working cycle repeats. The adjusting screw 28 limits the stroke of the piston 26 of the compensator 17 or ensures its full clamping, which is practiced in cases where the transfer from hydro ram to hydropulse mode of operation is performed, characterized by a smaller amount of working fluid being pumped, but with an increased amplitude of hydrostatic pulse oscillations in the injection pipeline, which is expedient, for example, when the working fluid is injected in a degassing well drilled in a coal massif pour fracturing of the array and removing it through the cracks of a hazardous gas (methane). In this case, the working fluid is first pumped into the well in the hydroimpulse-impulse mode, which forms increased cracking in the coal mass, and then the nozzle of the jetting machine is converted by unscrewing the adjusting screw 28 to the hydrotrang mode, which feeds into the well into the cracks formed in the coal mass an increased amount of the working fluid, contributing to the effective fluid that reaches the well into the cracks formed in the coal massif, an increased amount of the working fluid, contributing to the effective fluid 28 coal massif. Claims of the invention St. No. 631658, characterized in that, in order to increase productivity, the nozzle is provided with a spring-piston compensator in communication with the bore of the sleeve.

2. The nozzle of claim 1, wherein the opening of the sleeve is communicated with the cavity of the internal nozzle through a check valve. Sources of information taken into account in the examination 1. USSR author's certificate 631658, cl. E 21 C 45/00, 1978.

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