JP2016008780A5

JP2016008780A5 -

Info

Publication number: JP2016008780A5
Application number: JP2014129808A
Authority: JP
Filing date: 2014-06-25
Publication date: 2017-03-16
Anticipated expiration: 2034-06-25

Description

本発明の油分離装置は、外筒と、外筒の内側に位置する内筒と、冷媒を外筒の内壁面を周方向に向かって旋回するように流入させる導入流路と、内筒の上方に位置し、冷媒ガスが溜まる冷媒ガス空間と、冷媒ガス空間に接続され、冷媒ガス空間から冷媒ガスが流出する冷媒ガス流路と、冷媒ガス空間に接続された冷媒ガスの圧力取り出し口と、を備え、導入流路から流入した冷媒は外筒の内壁面を旋回下降することにより冷媒ガスと油とに分離し、分離した冷媒ガスは内筒の下端部から内筒の内部に流入して上昇し、その後、冷媒ガス空間を経由して冷媒ガス流路から流出し、分離した油は外筒の内壁面に沿って流下する。
An oil separation device according to the present invention includes an outer cylinder, an inner cylinder positioned inside the outer cylinder, an introduction flow path for allowing the refrigerant to flow around the inner wall surface of the outer cylinder in the circumferential direction, and the inner cylinder A refrigerant gas space that is located above and stores refrigerant gas; a refrigerant gas passage that is connected to the refrigerant gas space and flows out of the refrigerant gas space; and a pressure outlet for the refrigerant gas connected to the refrigerant gas space; The refrigerant flowing in from the introduction flow path is separated into refrigerant gas and oil by swirling down the inner wall surface of the outer cylinder, and the separated refrigerant gas flows into the inner cylinder from the lower end portion of the inner cylinder. And then flows out from the refrigerant gas flow path via the refrigerant gas space, and the separated oil flows down along the inner wall surface of the outer cylinder.

Claims

An outer cylinder,
An inner cylinder located inside the outer cylinder;
An introduction flow path for allowing the refrigerant to flow in such a way as to turn the inner wall surface of the outer cylinder in the circumferential direction;
A refrigerant gas space that is located above the inner cylinder and in which refrigerant gas accumulates;
A refrigerant gas flow path connected to the refrigerant gas space, from which refrigerant gas flows out of the refrigerant gas space;
A pressure outlet for refrigerant gas connected to the refrigerant gas space;
With
The refrigerant flowing in from the introduction flow path is separated into refrigerant gas and oil by swirling and descending the inner wall surface of the outer cylinder,
The separated refrigerant gas flows into the inner cylinder from the lower end of the inner cylinder and rises, and then flows out from the refrigerant gas flow path via the refrigerant gas space,
The separated oil flows down along the inner wall surface of the outer cylinder.

In claim 1,
The oil separator according to claim 1, wherein a central axis of the pressure outlet is arranged so as not to overlap a central axis of the inner cylinder.

In claim 1 or 2,
The outer cylinder has an end plate at an upper end, the refrigerant gas flow path is connected to the end plate, and the pressure outlet is connected to the outer cylinder.

In claim 1 or 2,
An end plate disposed at the upper end of the outer cylinder;
A ring-shaped member connected to the inner wall of the outer cylinder;
The inner cylinder connected to the ring-shaped member ;
Have,
The oil separation device, wherein the refrigerant gas space is formed by the end plate, the ring-shaped member, and the outer cylinder.

A male rotor and a female rotor whose rotation axes are substantially parallel and rotate while meshing with each other to form a compression working chamber;
The refrigerant discharged from the compression working chamber flows from the inlet passage, the oil separation device according to the refrigerant to any one of claims 1 to 4 is separated into refrigerant gas and oil,
Screw compressor equipped with.