Gas-liquid separation device, rear door, cooling device, and gas-liquid separating method

Patent metadata

Field	Value
Publication number	US-10801786-B2
Application number	US-201816148230-A
Country	US
Kind code	B2
Filing date	Oct 1, 2018
Priority date	Oct 4, 2017
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

The present invention provides a gas-liquid separation device, a rear door, a cooling device, and a gas-liquid separating method capable of reducing the tank capacity. The gas-liquid separation device includes a tank (13) which is provided in a heat receiving section configured to recover exhaust heat from a cooling object, and has a refrigerant vapor inflow section (13a) into which a refrigerant vapor flowing out from the heat receiving section via a vapor pipe (2) is introduced, and a refrigerant gas outflow section (13b) from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing refrigerant liquid of the refrigerant vapor on a lower surface; and a regulating valve (12) which floats on the refrigerant liquid stored in the tank (13) and closes a space between the vapor pipe (2) and the tank (13).

First claim

What is claimed is:

1. A gas-liquid separation device comprising:
a tank which is provided in a heat receiving section configured to recover exhaust heat from a cooling object, and has a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via a vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing refrigerant liquid of the refrigerant vapor on a lower surface; and
a regulating valve which floats on the refrigerant liquid stored in the tank and closes a space between the vapor pipe and the tank.

2. The gas-liquid separation device according to claim 1 , wherein the regulating valve has a ring shape.

3. The gas-liquid separation device according to claim 1 , wherein the regulating valve is inserted into a protruding section of the vapor pipe which protrudes into the tank.

4. The gas-liquid separation device according to claim 3 , wherein the regulating valve has a seal section which seals the refrigerant liquid between the regulating valve and the protruding section.

5. A rear door comprising:
a heat receiving section configured to recover exhaust heat from a cooling object;
a vapor pipe being connected to the heat receiving section; and
a gas-liquid separation device;
wherein the gas-liquid separation device comprises:
a tank having a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via the vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing refrigerant liquid of the refrigerant vapor on a lower surface; and
a regulating valve which floats on the refrigerant liquid stored in the tank and closes a space between the vapor pipe and the tank.

6. A cooling device comprising:
a heat receiving section configured to recover exhaust heat from a cooling object;
a vapor pipe being connected to the heat receiving section;
a gas-liquid separation device including:
a tank having a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via the vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing refrigerant liquid of the refrigerant vapor on a lower surface; and
a regulating valve which floats on the refrigerant liquid stored in the tank and closes a space between the vapor pipe and the tank;

a heat exchanger configured to condense the refrigerant gas by heat exchange;
a first pipe configured to connect the gas-liquid separation device and the heat exchanger; and
a second pipe configured to connect the heat exchanger and the gas-liquid separation device.

7. A method for separating a gas from a liquid, the method comprising:
providing a regulating valve capable of floating on a refrigerant liquid inside a tank which is provided in a heat receiving section configured to recover exhaust heat from a cooling object, and has a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via a vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing the refrigerant liquid of the refrigerant vapor on a lower surface;
storing the refrigerant liquid on the lower surface in the tank to make the regulating valve float; and
closing a space between the vapor pipe and the tank.

Assignees

• Nec Corp

Inventors

• Fujii Shunsuke

Classifications

• F28D15/0266 Primary

  with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers (F28D15/043 takes precedence) · CPC title

• F28D15/0275

  Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores · CPC title

• H05K7/20818

  within cabinets for removing heat from server blades · CPC title

• F16T1/20

  with valves controlled by floats · CPC title

• F16T1/45

  Means for venting or aerating (separate devices therefor F16K24/00) · CPC title