SU981675A1

SU981675A1 - Piston compressor

Info

Publication number: SU981675A1
Application number: SU802975357A
Authority: SU
Inventors: Валерий Георгиевич Деньгин; Анатолий Николаевич Кабаков; Анатолий Иванович Хорошунов; Виктор Евгеньевич Щерба
Original assignee: Омский политехнический институт; Предприятие П/Я М-5727
Priority date: 1980-08-25
Filing date: 1980-08-25
Publication date: 1982-12-15

Description

Изобретение относитс к компрессоростроению и касаетс поршневых компрессоров .This invention relates to a compressor industry and concerns reciprocating compressors.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс поршневой компрессор , содержащий вертикальный цилиндр с всасывающим и нагнетательным клапанами, установленный в нем с зазором полый поршень, соединенный со штоком и имеющий боковую поверхность, служащую статическим подшипником, подпитываемым при помощи выполненных в стенке поршн дроссельных отверстий , и расположенный в полости последнего подпружиненный диск с дросс ельными-отверсти ми , одна часть которых сообщена .с полостью пормн над диском, а друга - под диском 1 .Closest to the invention to the technical essence and the achieved result is a piston compressor containing a vertical cylinder with suction and discharge valves, a hollow piston mounted therein with a gap connected to the rod and having a lateral surface serving as a static bearing fed by wall-mounted the piston of the choke holes, and a spring-loaded disk in the cavity of the latter with throttle holes, one part of which is in communication with the cavity above the dia com, and the other - under the disc 1.

Недостатком этого поршневого компрессора вл етс низкий КПД, обусловленный наличием в поршне обратного клапана, работающего в т желых услови х знакопеременных нагрузок.The disadvantage of this piston compressor is its low efficiency, due to the presence in the piston of a check valve operating under severe alternating loads.

Цель изобретени - повышение КПД поршневого компрессора.The purpose of the invention is to increase the efficiency of a piston compressor.

Указанна цель достигаетс тем, что в nofnuHGBOM компрессоре шток закреплен на диске, полость поршн выполнена открытой со стороны подпоршневого пространства цилиндра, а в стенке поршн под дроссельными отверсти ми выполнены сквозные радиальные каналы.This goal is achieved by the fact that in the nofnuHGBOM compressor the rod is fixed on the disk, the piston cavity is made open from the side of the piston cylinder space, and through the radial channels in the wall of the piston under the throttle holes.

На чертеже схематически изображен поршневой компрессор, продольный разрез .The drawing shows schematically a piston compressor, a longitudinal section.

Поршневой компрессор содержит вертикальный цилиндр 1 в всасывающим и нагнетательным клапанами 2 и 3, установленный в нем с зазором 4 полый поршень 5, соединенный со штоком 6 и имеющий боковую поверхность, служащую статическим подшипником, подпитываемым при помощи выполненных в стенке поршн 5 дроссельных отверстий 7, и расположенный в полости 8 последнего подпружиненный упругими элементами 9 диск 10 с дроссельными отверсти ми 11, одна часть которых соо&цена с полостью поршн над диском 10, друга - под диском 10. При этом шток 6 закреплен на диске 10, полость 8 поршн 5 выполнена открытой со стороны подпоршневого пространства цилиндра 1,а в стенке поршн 5 под дроссельными отверсти ми 7 выполнены сквозные радиальные каналы 12.The piston compressor contains a vertical cylinder 1 in the suction and discharge valves 2 and 3, installed therein with a gap 4 a hollow piston 5 connected to the rod 6 and having a lateral surface serving as a static bearing, fed by the throttle holes 7 made in the wall of the piston 5, and a disk 10 with throttle holes 11 located in cavity 8 of the latter spring-loaded by elastic elements 9, one part of which is co & price with a piston cavity above disk 10, the other is under disk 10. At the same time, rod 6 is fixed to dis 10 e, the cavity 8 of the piston 5 is open from the subpiston space of the cylinder 1, and in the wall of the piston 5, under the throttling openings 7 made through the radial channels 12.

Claims

The reciprocating compressor works in a rather duky way. When the piston 5 moves upwards, the gas is compressed. An increase in pressure is transmitted to the piston 5, which causes the latter to move relative to the disk 10. At the same time, the radial channels 12 overlap and gas is also compressed in the cavity 8 of the piston 5, while the elastic elements 9 are compressed. Due to the increase in pressure, gas from the cavity 8 of the piston 5 flows through the throttle holes 7 into the gap 4 between the piston 5 JJ cylinder 1, the centrir5 piston 5. At the same time, the cue 5 is centered relative to the disk 10 using part of the throttle holes 11 communicated with the cavity 8 of the piston 5 above disc 10. With further upward movement of piston 5, discharge valve 3 opens and compressed gas is supplied to consumer TI. When piston 5 moves down, pressure in the cylinder cavity 1 and 1 above piston 5 drops, piston 5 under the action of elastic elements 9 and yes laziness gas present in the cavity 8 above the disk 10 is moved relative to the disc 10. At the same time, the channels 12 open, and the gas from the gap 4 begins to enter the cavity 8 of the piston 5 and further to the throttle holes 7 to center the piston 5 relative to the cylinder 1. At the same time, the piston 5 centers from the disk 10 with the help of a part of the throttle holes 11, pistons 5 under the disk 10 communicated with the cavity 8. With further stroke of the piston 5, the suction valve 2 opens and gas is sucked into the cylinder 1. Thereafter, the cycle repeats. Thus, such a design of a piston compressor makes it possible to reject a check valve in the piston, stabilize the throttle orifices and reduce gas leaks, thereby increasing the efficiency of the compressor. Claim a piston compressor containing a vertical cylinder with suction and discharge valves, a hollow piston mounted therein with a gap connected to the rod and having a lateral surface serving as a static bearing fed by throttle holes in the wall of the piston and located in the cavity of the last spring-loaded disk with choke holes, one part of which communicates with the piston cavity above the disk, and the other below the disk, characterized in that, in order to increase efficiency, w the current is fixed on the disk, the piston cavity is made open from the side of the cylinder piston space, and through the radial channels in the wall of the piston under the pre-ascent holes are made. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2975729/06, cl. F 04 31/00, 08.21.1980.