SU994801A1

SU994801A1 - Screw compressor

Info

Publication number: SU994801A1
Application number: SU813359276A
Authority: SU
Inventors: Владимир Леонидович Юша; Анатолий Никитович Кабаков; Александр Павлович Болштянский
Original assignee: Омский политехнический институт
Priority date: 1981-12-03
Filing date: 1981-12-03
Publication date: 1983-02-07

Description

VV

(54) ВИНТОВОЙ КОМПРЕССОР(54) SCREW COMPRESSOR

1one

Изобретение относитс к компрессоростроению , а именно к винтовым компрессорам .The invention relates to a compressor industry, namely to screw compressors.

Известен винтовой компрессор, содержащий корпус с камерами всасывани и нагнетани и рабочей полостью, и размещенные в последней взаимодействующие винтовые роторы, установленные на полых ос х, полости которых подключены к источнику охлаждающей жидкости (1 .A screw compressor is known, comprising a housing with suction and discharge chambers and a working cavity, and interacting screw rotors located in the latter, mounted on hollow axles whose cavities are connected to a source of cooling fluid (1.

Однако в известном компрессоре не обеспечиваетс регулирование производительности .However, in a known compressor, capacity control is not provided.

Цель изобретени - обеспечение регулировани производительности.The purpose of the invention is to provide performance control.

Указанна цель достигаетс тем, что в винтовом компрессоре, имеющем корпус с камерами всасывани и нагнетани и рабочей полостью, и размещенные в последней взаимодействующие винтовые роторы, установленные на полых ос х, полости которых подключены к источнику охлаждающей жидкости, по крайней мере, одна из осей установлена с возможностью поворота , в ее полости расположен с образованием вентилируемой камеры трубчатый теплообменник , и ротор установлен на оси посредством подшипников, причем эта ось и ротор имеют радиальные каналы, сообщающие вентилируемую камеру с камерой нагнетани и рабочей полостью.This goal is achieved in that in a screw compressor having a housing with suction and discharge chambers and a working cavity, and in the latter, interacting screw rotors mounted on hollow axles whose cavities are connected to a source of cooling fluid, at least one of the axes installed with the possibility of rotation, in its cavity is located with the formation of a ventilated chamber tubular heat exchanger, and the rotor is installed on the axis by means of bearings, and this axis and the rotor have radial channels, communicating A ventilated chamber with a discharge chamber and a working cavity.

На фиг. 1 изображен винтовой компрессор , продольный разрез; на фиг. 2 - разрез А-А на фиг. 1.FIG. 1 shows a screw compressor, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

Винтовой компрессор содержит корпус 1 с камерами 2 и 3 всасывани и нагнетани и рабочей полостью 4, и размещенные в The screw compressor includes a housing 1 with chambers 2 and 3 suction and discharge and a working cavity 4, and placed in

10 последней взаимодействующие винтовые роторы 5, установленные на полых ос х 6, полости 7 которых подключены к источнику (не показан) охлаждающей жидкости.10 last interacting screw rotors 5 mounted on hollow axles x 6, the cavities 7 of which are connected to the source (not shown) of the coolant.

15По крайней мере, одна из осей 6 установлена с возможностью поворота, в ее полости 7 расположен с образованием вентилируемой камеры 8 трубчатый теплообменник 9, и ротор 5 установлен на оси 6 посредством подщипников 10, причем эта15At least one of the axles 6 is rotatably mounted, in its cavity 7 a tubular heat exchanger 9 is positioned with the formation of a ventilated chamber 8, and a rotor 5 is mounted on the axis 6 by means of nipples 10, and this

Claims

The axis 6 and the rotor 5 have radial channels 11-13, connecting the ventilated chamber 8 with the pressure chamber 3 and the working cavity 4. In addition, axis 6 is fixed by the grips 14. The compressor operates as follows. The rotating rotors 5 capture the gas from the suction chamber 2 and move it with simultaneous compression into the injection chamber 3. At the same time, part of the gas from the injection chamber is transferred through the channels 11, the ventilated chamber 8 and the channels 12 and 13 into the working cavity 4. The gas passing through the chamber 8 is cooled in the heat exchanger 9 through which the cooling fluid passes. The compressor capacity is controlled by turning axis 6, i.e. by changing the position of channels 12 in axis 6 relative to channels 13 in rotor 5, which leads to a change in the amount of bypass gas in the working cavity 4. Thus, the installation of one of the axes can be rotated and placing in its cavity with the formation of a ventilated chamber of a tubular heat exchanger and installation of rotors on the axis by means of bearings, as well as the implementation in this axis and the rotor of radial channels, informing the ventilated chamber with the chamber on Netanya and working chamber, allows to adjust compressor performance. Claims An inventive screw compressor comprising a housing with suction and discharge chambers and a working cavity, and interacting screw rotors placed in the latter, mounted on hollow axles whose cavities are connected to a source of cooling fluid, characterized in at least one of the axes is rotatably mounted, a tubular heat exchanger is located in its cavity to form a ventilated chamber, and the rotor is mounted on the axle by means of spines, this axis and the rotor having radial channels connecting the ventilated chamber with the injection chamber and the working cavity. Sources of information taken into account in the examination 1. Patent of England No. 832386, cl. 110/2, pub. 1960

13

FIG. 2