Nec Platforms, Ltd.

Nec Corporation

Shunsuke Fujii

Yasuhito Nakamura

Masanori Sato

Minoru Yoshikawa

Masaki Chiba

Arihiro Matsunaga

Kenichi Inaba

Akira Shoujiguchi

Tadao Hosaka

A refrigerant distribution device includes: a distribution vessel in which a refrigerant liquid flows; a refrigerant inflow pipe connected to a top portion of the distribution vessel and supplied with a refrigerant liquid; a first refrigerant outflow pipe and a second refrigerant outflow pipe connected to a bottom portion of the distribution vessel to discharge the refrigerant liquid; and a float channel switching valve that floats in the refrigerant liquid in the distribution vessel. The flow channel switching valve switches a passage to the first refrigerant outflow pipe when an amount of the refrigerant liquid in one heat receiver does not reach a reference amount of liquid, and cuts off the passage communicating with the first refrigerant outflow pipe and switches the passage to the second refrigerant outflow pipe when the amount of the refrigerant liquid in the one heat receiver reaches the reference amount of liquid.

Refrigerant distribution device, cooling system, and refrigerant distribution method in refrigerant distribution

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 () 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 ().

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

A refrigerant relay deviceis provided with a casing, a first refrigerant inflow opening, a first refrigerant outflow opening, and refrigerant inflow piping. The casing retains liquid-phase refrigerant and gas-phase refrigerant. The liquid-phase refrigerant is made to flow into the casing through the first refrigerant inflow opening. The gas-phase refrigerant is made to flow out to the outside of the casing through the first refrigerant outflow opening. In the refrigerant inflow piping, one end is connected to the first refrigerant inflow opening and an openingis formed at the other end. The liquid-phase refrigerant flowing into the first refrigerant inflow opening is made to flow into the casing through the refrigerant inflow piping from the opening. The opening is positioned so as to face the bottom partof the casing.

Cooling device

A cooling system includes a heat absorbing device which has a first pipe port and absorbs heat discharged from equipment by using refrigerant; a radiator which has a second pipe port placed higher than the first pipe port and cools the refrigerant; a first flexible pipe whose one end is connected with the first pipe port and whose another end is connected with the second pipe port and through which the refrigerant flows and which can bend freely; and a loading table having a surface which becomes higher in a vertical direction as approaching from one end of the surface to another end, and on which the first flexible pipe is placed so as to become higher in the vertical direction as approaching from a side of the first flexible pipe, which is connected with the first pipe port, to a side of the first flexible pipe which is connected with the second pipe port.

Cooling system and electronic equipment

In order to supply a refrigerant to multiple-stage heat receivers equally while saving space, a refrigerant distribution device to distribute a refrigerant supplied from the upper stream according to the present invention includes a main body including a side wall part, an upper face part and a bottom face part, an upstream pipe provided on the upper face part in a manner communicating with an inside of the main body, a downstream pipe provided in a state partially inserted inside the main body via an under face hole part provided in the bottom face part, a tributary pipe provided in the side wall part or the bottom face part in a manner communicating with the inside of the main body, and a refrigerant direction changing means provided between the upstream pipe and the downstream pipe.

Refrigerant distribution device and cooling apparatus

The purpose of the present invention is to more efficiently cool exhaust heat, of an apparatus or the like that emits heat, by preventing a situation where a gas-phase medium is cooled and turns into a liquid-phase medium and thereby transfer of the gas-phase medium is hindered. For this purpose, a cooling system includes a heat receiving means for receiving a gas heated by heat emitted by an electronic apparatus and changing a liquid-phase heat medium into a gas-phase heat medium. a heat radiation means for cooling the gas-phase heat medium so as to be changed into the liquid-phase heat medium. a first transfer means for transferring the gas-phase heat medium from the heat receiving means to the heat radiation means. and a second transfer means for transferring the liquid-phase heat medium from the heat radiation means to the heat receiving means. wherein at least part of the first transfer means is heated by the heat emitted by the electronic apparatus.

Growing community of inventors

Kanagawa, Japan

Shunsuke Fujii