JP2010266143A - Vaporization cooling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vaporization cooling device capable of performing efficient cooling even when a heat exchange face is horizontal. <P>SOLUTION: A cooling water supply pipe 5 is connected to a heat exchange container 1 through a control valve 27. Nozzles 24, 25 for injecting the cooling water upward are mounted on an end face at a heat exchange container 1 side, of the cooling water supply pipe 5. The heat exchange face 2 is disposed on a top face of the heat exchange container 1, and a water-containing member 11 is disposed on a lower face of the heat exchange surface 2. A suction means 6 is connected to a lower end of the heat exchange container 1 through a steam trap 4 and an opening/closing valve 9. The suction means 6 is composed of a liquid ejector 13, a cooling water tank 14 and a circulation pump 15. The cooling water injected from the nozzles 24, 25 is accumulated on the water-containing member 11, thus cooling efficiency can be improved. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

 The present invention relates to a vaporization cooling apparatus that cools an object to be heat-exchanged with cooling water supplied by reducing the inside of a heat exchange container.

In the conventional evaporative cooling device, the cooling water supply pipe connected to the evaporative cooling chamber is connected in the tangential direction and the horizontal direction of the outer wall surface of the heat exchange vessel, and the cooling water swirls around the outer wall surface of the heat exchange vessel. While flowing down, the adhesion effect of the cooling water is improved and the cooling efficiency can be increased.

In the above conventional evaporative cooling device, when the heat exchange surface of the heat exchange container is horizontal, the supplied cooling water drops instantaneously from the heat exchange surface, and evaporative cooling cannot be performed efficiently. was there.

Japanese Utility Model Publication No. 5-37181

  The problem to be solved is to obtain an evaporative cooling device that can efficiently perform evaporative cooling even when the heat exchange surface of the heat exchange vessel is horizontal.

 The present invention supplies cooling water to a heat exchange container through a valve and connects a suction means for maintaining the inside of the heat exchange container in a reduced pressure state to cool a heat exchange object in the heat exchange container. The heat exchange surface of the heat exchange container is horizontally arranged, and a water-containing member for accumulating a part of the supplied cooling water is attached to the surface of the horizontal heat exchange surface.

  In the present invention, the water-containing member is attached to the surface of the horizontal heat exchange surface, and a part of the supplied cooling water is stored in the water-containing member, so that the cooling water is instantaneously discharged from the heat exchange surface. The dripping can be prevented and the cooling efficiency can be improved.

It is a block diagram which shows the Example of the vaporization cooling device which concerns on this invention.

In the present invention, a water-containing member is attached to the surface of a horizontal heat exchange surface. As this water-containing member, a layered cloth, a sponge-like foamed resin, a foamed metal, or a thin metal wire is used. What was laminated | stacked in the shape of a wrinkle can be used.

  In FIG. 1, a horizontally long and rectangular parallelepiped heat exchange vessel 1, a heat exchange surface 2 formed horizontally on the upper end surface of the heat exchange vessel 1, a water-containing member 11 attached to the lower surface of the heat exchange surface 2, The cooling water supply pipe 5 connected to the heat exchange vessel 1, the steam trap 4 communicating with the lower part of the heat exchange vessel 1, and the suction means 6 constitute an evaporative cooling device. In this embodiment, an example is shown in which the heat exchange surface 2 can be heated not only by evaporative cooling but also by supplying steam for heating from the steam supply pipe 3 to the heat exchange vessel 1.

A control valve 7 for controlling the amount of steam supplied to the heat exchange container 1 is attached to the steam supply pipe 3. The heat exchange surface 2 is heated by the heating steam supplied from the steam supply pipe 3 to the heat exchange container 1. As the water-containing member 11, the supply of steam to the heat exchange surface 2 is completely prevented by using a cloth laminate material, a sponge-like foamed resin, a foam metal, or a metal-laminated metal wire. It can be heated without any problems.

The cooling water supply pipe 5 is also connected to the lower surface of the heat exchange vessel 1 via a control valve 27. Nozzles 24 and 25 for injecting cooling water in the direction of the upper water-containing member 11 are attached to the end of the cooling water supply pipe 5 on the heat exchange container 1 side.

In the present embodiment, the example in which the nozzles 24 and 25 are attached to the lower end surface of the heat exchange container 1 has been shown, but the nozzle can also be attached to the side wall surface of the heat exchange container 1.

The lower end of the heat exchange vessel 1 is connected to the inlet side of the steam trap 4 by a pipe line 8. An on-off valve 9 is attached in parallel with the steam trap 4. The outlet side of the steam trap 4 and the on-off valve 9 is connected to the suction chamber 10 of the liquid ejector 13 constituting the suction means 6.

The suction means 6 includes a liquid ejector 13, a cooling water tank 14, and a circulation pump 15. By supplying the cooling water in the cooling water tank 14 to the liquid ejector 13 by driving the circulation pump 15, a predetermined suction force is generated in the suction chamber 10.

A cooling water supply pipe 16 that branches the cooling water supply pipe 5 is connected to the upper part of the cooling water tank 14, and a surplus water discharge pipe 17 is connected by branching the discharge side of the circulation pump 15.

  When heating the heat exchange surface 2, the heat exchange surface 2 is heated by steam by supplying a predetermined amount of steam from the steam supply pipe 3 and the control valve 7 into the heat exchange container 1. Condensate condensed by heating passes from the pipe line 8 at the lower end of the heat exchange vessel 1 through the steam trap 4 and further from the liquid ejector 13 to the cooling water tank 14.

  When cooling the heat exchange surface 2, heat exchange is performed by supplying a predetermined amount of cooling water from the cooling water supply pipe 5, the control valve 27, and the nozzles 24, 25 to the water-containing member 11 on the lower surface of the heat exchange surface 2. The cooling water evaporates by the heat of the surface 2 and is cooled by the evaporation line heat.

By attaching the water-containing member 11 to the horizontal heat exchange surface 2, the cooling water supplied from the nozzles 24 and 25 is stored in the water-containing member 11, so that heat of the heat exchange surface 2 is surely taken. As a result, the cooling efficiency can be improved.

  It can be applied as various evaporative cooling devices that perform indirect evaporative cooling.

DESCRIPTION OF SYMBOLS 1 Heat exchange container 2 Heat exchange surface 5 Cooling water supply pipe 6 Suction means 10 Suction chamber 11 Water-containing member 13 Liquid ejector 14 Cooling water tank 15 Circulation pump 24, 25 Nozzle

Claims (1)

  Supplying cooling water to the heat exchange container via a valve and connecting a suction means for maintaining the inside of the heat exchange container in a reduced pressure state to cool the heat exchange object of the heat exchange container. The evaporative cooling device is characterized in that the heat exchange surface is horizontally arranged, and a water-containing member for storing a part of the supplied cooling water is attached to the surface of the horizontal heat exchange surface.