JP2010266144A - Vaporization cooling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vaporization cooling device capable of performing efficient cooling even if a heat exchange face is horizontal. <P>SOLUTION: A cooling water supply pipe 5 is connected to a heat exchange container 1 through an automatic valve 27. Similarly, a compressed air supply pipe 12 is connected to the heat exchange container 1 through the automatic valve 16. Supply openings 24, 25 for injecting cooling fluid upward are formed at an end face at a heat exchange container 1 side of the supply pipes 5, 12. The heat exchange face 2 is disposed on a top face of the heat exchange container 1. 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. Since the cooling water and the compressed air are alternately injected to the heat exchange face 2 from the nozzles 24, 25, cooling efficiency can be improved. <P>COPYRIGHT: (C)2011,JPO&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, the cooling water supply port and the compressed air supply port are provided facing the surface of the horizontal heat exchange surface, and the cooling water supply port and the compressed air are provided. Cooling water and compressed air are alternately supplied from the supply port to the surface of the heat exchange surface.

  In the present invention, the cooling water and the compressed air are alternately supplied to the surface of the horizontal heat exchange surface, so that the cooling water supplied to the heat exchange surface is transferred from the heat exchange surface by the compressed air supplied thereafter. It becomes difficult to dripping, and heat exchange can be reliably performed on the heat exchange surface. Further, by supplying the compressed air, evaporation of the cooling water on the heat exchange surface is promoted, 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, cooling water and compressed air are supplied to the heat exchange surface from the supply port. This supply port can alternately supply cooling water and compressed air from a common supply port, or separately. Each fluid can be alternately supplied from the supply port.

  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, and cooling water and compressed air attached below the heat exchange surface 2. The supply ports 24 and 25, the steam trap 4 communicating with the lower part of the heat exchange container 1, and the suction means 6 constitute a vaporization 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.

A cooling water supply pipe 5 for supplying cooling water to the heat exchange vessel 1 is connected. The cooling water supply pipe 5 is connected to supply ports 24 and 25 on the lower surface of the heat exchange vessel 1 via an automatic valve 27. When the automatic valve 27 is opened, cooling water is injected from the supply ports 24 and 25 to the heat exchange surface 2.

A compressed air supply pipe 12 that supplies compressed air to the heat exchange container 1 is connected. The compressed air supply pipe 12 is also connected to supply ports 24 and 25 via an automatic valve 16. When the automatic valve 16 is opened, compressed air is injected from the supply ports 24 and 25 to the heat exchange surface 2.

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 30 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 a discharge side pipe 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, the automatic valve 27 of the cooling water supply pipe 5 is opened to supply a predetermined amount of cooling water from the supply ports 24 and 25 to the lower surface of the heat exchange surface 2. The valve 27 is closed, the automatic valve 16 of the compressed air supply pipe 12 is opened, and compressed air is supplied from the supply ports 24 and 25 to the heat exchange surface 2, thereby cooling water on the lower surface of the heat exchange surface 2. The cooling water evaporates by the heat of the heat exchange surface 2 and is cooled by the evaporation line heat, so that 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 12 Compressed air supply pipe 13 Liquid ejector 14 Cooling water tank 15 Circulation pump 24, 25 Supply port

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 heat exchange surfaces are arranged horizontally, a cooling water supply port and a compressed air supply port are provided opposite to the surface of the horizontal heat exchange surface, and alternately from the cooling water supply port and the compressed air supply port. The evaporative cooling device is characterized by supplying cooling water and compressed air to the surface of the heat exchange surface.