SU1479710A1 - Jet well pump - Google Patents

Abstract

The invention relates to the field of jet technology, mainly to pumping with a jet pump from a well fluid medium containing solids. The purpose of the invention is to increase reliability and performance by reducing the ingestion of solid impurities into the pump flow path. The downhole jet pump contains a mixing chamber 5, a diffuser 6, an active nozzle / AC / with a screw-shaped plate installed therein, pointed at the exit, a conical receiving chamber 7 covering the speaker, a housing 8 surrounding the outlet section of the nozzle 3 for supplying the active medium, and in the housing 8, on the side of the pipeline 1 for supplying the active medium, a slot 11 is made and radial visors are made on the casing 8 along its vertical forming limiting slot 11, and the branch pipe 3 for supplying the active medium is provided with distancing ribs 15. Active The swirling medium, having elapsed from the AC, carries the passive liquid medium into the mixing chamber 5. In the diffuser 6, the kinetic energy of the flow of the mixture of media is partially converted into potential energy. The spacing ribs 15 contribute to a more optimal location of the pump in the well and prevent its damage during installation, and making the slot 11 on the pipeline side and supplying it with radial visors reduces the ingress of solids into the flow part of the pump. 2 Il.

Description

the active medium, and in the case 8 from the side of the pipeline 1 for supplying the active medium, a slot 11 is made and on the case 8 along its vertical forming, bounding the slot 11, radial visors are made, and the nozzle 3 for supplying the active medium is provided with distancing ribs 15. Spun active medium has expired from the AC, carries the passive liquid medium into the mixing chamber 5. In the diffuser

6, the kinetic energy of the flow of the mixture of media is partially converted into potential energy. The spacing ribs 15 contribute to a more optimal location of the pump in the well and prevent its damage during installation, and making a slot 1 1 on the side of the pipeline and supplying it with radial visors reduce the entry of solids into the flow part of the pump. 7 il.

one

The invention relates to a jet technology, mainly to well jet pumps for pumping groundwater.

The purpose of the invention is to increase the reliability of work and productivity by reducing the ingress of solid impurities into the pump flow path.

FIG. 1 shows a downhole jet pump, general view; Fig.2 is the same longitudinal section; in FIG. 3, section A-A in FIG. 1; in fig. 4 — node I in FIG. one; in fig. 5 is a sectional view BB in FIG. one; in fig. 6 is a section of YY in FIG. in fig. 7 is a section BB in FIG. one.

The downhole jet pump contains a pipeline 1 for supplying an active medium, a pressure pipe 2, a U-shaped nozzle 3 for supplying an active medium, an active nozzle 4, a mixing chamber 5, a diffuser 6 and a conical receiving chamber 7 covering the active nozzle 4. Receiving chamber 7 is equipped the housing 8, which encloses the outlet section 9 of the nozzle 3 for supplying the active medium and forming an annular slot 10 with the latter; moreover, in the housing 8, a slot 11 for supplying the passive medium and on the housing 8 is made on the side of the active medium supply pipe 1 forming its vertical limiting slit 11, 12 provided with radial sunshields, active nozzle 4 is provided with a taper at the output of the helical plate 13 installed in the nozzle 4 is congruent to the inner surface thereof, and established

relative to the conical receiving chamber 7 with the formation of radial holes 14 for supplying the passive medium, and the nozzle 3 for supplying the active medium in the area below the casing 8 is provided with spacer ribs 15.

The active liquid medium, for example, water, is supplied through conduit 1 for supplying active medium to branch pipe 3 for supplying active medium and further to active nozzle 4. Twisted active medium in nozzle 4, having flowed out of it, draws passive medium into compartment chamber 5, which flows respectively through slot 11 and the slotted opening 10 into the housing 8 and further therefrom through the radial windows 14 of the receiving chamber 7 to the mixing chamber 5. From the mixing chamber 5, the flow of the mixture of media enters the diffuser 6, where the kinetic energy of the flow is partially converted into potential energy and further along the pressure pipe 2 is supplied to the consumer.

Making the slot 11 from the side of the pipeline 1 for supplying the active medium, supplying the slot 11 with radial visors 12 and making the annular slotted hole 10 reduce the ingress of solid impurities into the flow part of the jet pump 15 and provide more optimal positioning of the pump relative to the borehole walls and prevent elements pump design from damage when it is installed in the well.

Claims (1)

The proposed borehole jet pump provides increased reliability and performance both when pumping groundwater, and with simultaneous evacuation of the well, if necessary. Formula isobteni A downhole jet pump comprising a conduit for supplying an active medium, a pressure conduit, a U-shaped nozzle for supplying an active medium, an active nozzle, a mixing chamber, a diffuser and a conical receiving chamber encompassing the active nozzle, characterized in that performance by reducing the ingestion of solids into the flow part of the pump, the receiving chamber is provided with a casing covering the outlet section of the active medium supply pipe and forming an annular slotted hole with the latter; in the casing from the pipeline side of the active medium supply, a slot is made for supplying the passive medium and radial peaks are made on the casing along its vertical forming, delimiting the slot, the active nozzle is pointed out a screw plate mounted in the nozzle congruently to its inner surface and mounted relative to the conical receiving chamber with the formation of radial windows for the supply of a passive medium, i and the nozzle for supplying the active medium in the area below the casing is provided with distance edges. ± 1 4 gd 15 fiab Compiled by S. Kovbas Editor M. Kelemesh Tehred L. Serdyukova Proofreader E. Lonchakova Order 2522/35 Circulation 523 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5 FIG. five at eri5.7 Subscription