SU969972A1

SU969972A1 - Submersible impeller pump

Info

Publication number: SU969972A1
Application number: SU813271035A
Authority: SU
Inventors: Владимир Николаевич Макаров; Виктор Сергеевич Журавлев; Владимир Николаевич Носов; Олег Леонидович Кузнецов; Николай Степанович Маринин; Виль Гатеевич Сафин; Владимир Дмитриевич Михель
Original assignee: Сибирский научно-исследовательский институт нефтяной промышленности
Priority date: 1981-04-13
Filing date: 1981-04-13
Publication date: 1982-10-30

Description

(5) ПОГРУЖНОЙ ЦЕНТРОБЕЖНЫЙ НАСОС(5) SUBMERSHIP CENTRIFUGAL PUMP

1one

Изобоетение относитс к насосостроению , в частности к конструкции погружного насоса и может быть использовано в добывающей промышленности , строительстве и сельском хоз йстве .The installation relates to pump engineering, in particular to the design of a submersible pump, and can be used in the mining industry, construction and agriculture.

Известен погружной насос, содержащий рабочее колесо, разъемную камеру и приспособление дл расстыковки камеры 1 .Known submersible pump containing the impeller, the split chamber and the device for disconnecting the camera 1.

Недостатком известного насоса вл етс сложность крнструкции.A disadvantage of the known pump is the complexity of the construction.

Наиболее близким к предлагаемому по технической сущности вл етс погружной центробежный насос, содержащий корпус и установленные в нем на валу рабочие ступени и дисковый ультразвуковой преобразователь 21.Closest to the proposed technical entity is a submersible centrifugal pump, comprising a housing and operating stages mounted on the shaft and a disk ultrasonic transducer 21.

Недостатками известного насоса вл ютс низка надежность и узкий диапазон работы.The disadvantages of the known pump are low reliability and narrow range of operation.

Цель изобретени - повышение надежности и расширение диапазона работы .The purpose of the invention is to increase reliability and expand the range of operation.

Поставленна цель достигаетс тем, что преобразователь снабжен зак-репленным на корпусе концентрично его диску кольцом, расположенным с зазором относительно последнего, а на валу над преобразователем установлен резонатор, выполненный в виде обечайки с осевыми сквозными вырезами. Кроме того, на наружной поверхности диска преобразоваЦ тел выполнены винтовые канавки.The goal is achieved by the fact that the converter is provided with a ring fixed on the housing concentric to its disk, located with a gap relative to the latter, and a resonator in the form of a shell with axial through cutouts is mounted on the shaft above the converter. In addition, screw grooves are made on the outer surface of the transducer body.

На фиг. 1 схематически показан насос, продольный разрез; на фиг.2 резонатор , продольный разрез.FIG. 1 schematically shows a pump, a longitudinal section; Fig.2 resonator longitudinal section.

Claims

The submersible centrifugal pump co15 holds the casing 1 and the working stages 3 installed on it on the shaft 2 and the disk ultrasonic transducer 5 provided with a ring 6 fixed to the casing concentric to its disk 6 with a gap 7 relative to the latter, and mounted on the shaft 2 above the converter 5 a resonator 8, made in the form of a shell 9 with axial through, notches i 10 and 11, and flute-shaped grooves 12 are made on the outer surface of the disk of the converter 5. The pump operates as follows (abraz. Pumped liquid run through the gap 7 between the ring 6 and the converter 5 in which the fluid flow receives additional acceleration.The rotation of the ring 6 of the converter 5 with the shaft 2 reduces the hydraulic resistance in the gap 7, and the presence of helical grooves 12 contributes to the formation of vortices the outlet of the flow from the gap and rejects mechanical impurities (sand) to the walls of the housing 1 in the zone of the greatest acoustic impact. From the gap 7, the fluid flow rushes to the rotating shell 9 of the resonator 8 creating acoustic oscillations. The cuts 10 and 11 expand the range of radiated frequencies, and the rotation of the resonator 8 with the shaft 2 improves the ultrasonic processing | in the produced fluid due to its intensive mixing in the elimination of stagnant zones. The acoustic field, acting on the fluid flow, creates cavitation in it and causes intense bulk crystallization of salts. Salt crystals with fluid flow in working steps 4 are removed from the pump and from the well to the surface, since they lose the opportunity to crystallize on the pipe walls. In the proposed centrifugal pump, due to the new design of the ultrasonic transducer, the need to adjust the frequency of the transducer depending on the change in salinity of the produced fluid is eliminated, since the presence of cutouts 10 and 11 in the shell 9 of the resonator 8 allows for a wide range of radiated frequencies. In addition, the pump is operable on fluids with a high content of mechanical impurities, since they are thrown by the rotating ring 6 into the zone of maximum cavitation between the mow body 1 and the resonator 8, and the acoustic field is intensively treated by the entire zone. At the same time, due to the rotation of the resonator 8, the hydrodynamic resistance of the ultrasonic transducer 5 to the flow of fluid is reduced and the optimum action of the acoustic field on the pumped fluid is ensured. Claim 1. Submersible centrifugal pump, comprising a housing and working stages mounted on it on the shaft and a disk ultrasonic transducer, characterized in that, in order to increase reliability and expand the operating range, the converter is equipped with a ring fixed with a gap on the housing relative to the latter, and on the shaft above the converter, there is a resonator installed, made in the form of a shell with axial through cuts, 2. Pump pop. 1, which also differs from the external Screw grooves are made on the converter disk. Sources of information taken into account during the examination 1. USSR author's certificate No. 58 | 097, cl. F OA D 1/00, 1975.

2. USSR author's certificate number 629362, cl. F 0 D 1/00, 1977X