JP2011226662A - Heating and cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a heating and cooling device efficiently performing heating and cooling even when a heat exchange face is horizontal.SOLUTION: A cooling water supply pipe 5 is connected to a heat exchange container 1 through an automatic valve 12. A porous member 19 is mounted in the heat exchange container 1. The heat exchange face 2 is arranged on the upper face of the heat exchange container 1. An upper part 22 of the porous member 19 is connected to a suction chamber 10 of a suction means 6 through a pipe line 8. The suction means 6 is constituted of a liquid ejector 13, a cooling water tank 14 and a circulation pump 15. Steam passes through the porous member 19 and is supplied to the entire underside of the heat exchange face 2 so that uneven heating can be prevented.

Description

 The present invention relates to a heating / cooling device that heats or cools an object to be heat exchanged by reducing the pressure inside the heat exchange container.

In the conventional heating and cooling apparatus, an electric motor is connected to the cooling water injection nozzle, and the cooling water injection nozzle is rotated by the electric motor, so that the cooling water is supplied to the object to be cooled with a small number of cooling water injection nozzles. Can be injected.

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

JP-A-7-208847

  The problem to be solved is to obtain a heating / cooling device capable of efficiently performing heating / cooling even when the heat exchange surface of the heat exchange vessel is horizontal.

 The present invention supplies a heating or cooling fluid to a heat exchange container via a valve, and connects a suction means for maintaining the inside of the heat exchange container in a reduced pressure state so that the heat exchange object of the heat exchange container is In what is heated or cooled, a fluid supply part for heating or cooling is provided in a heat exchange container with a porous member interposed.

  In the present invention, a heating or cooling fluid supply unit is provided with a porous member interposed in the heat exchange container, so that a fine heating or cooling fluid can be supplied to the entire surface of the heat exchange surface. The entire heat exchange surface can be uniformly heated or cooled.

It is a block diagram which shows the Example of the heating-cooling apparatus which concerns on this invention.

The present invention is to provide a heating or cooling fluid supply unit with a porous member interposed in a heat exchange vessel. As the porous member, one end surface of the porous member is manufactured by a punching plate or the like. What can pass the heating or cooling fluid through to the other end face can be used.

  In FIG. 1, a cylindrical and flat heat exchange vessel 1, a heat exchange surface 2 formed horizontally on the upper end surface of the heat exchange vessel 1, a porous member 19 that partitions the inside of the heat exchange vessel 1, And the heating / cooling apparatus is comprised with the suction means 6 connected below the heat exchange container 1. FIG. Moreover, the heat exchange surface 2 can be heated 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.

A cooling water supply pipe 5 for supplying cooling water to the heat exchange vessel 1 is connected. The lower end of the cooling water supply pipe 5 is connected to a part of the suction means 6. The cooling water supply pipe 5 is connected to the cooling water nozzle 20 of the heat exchange container 1 through a water ejector 11 and an automatic valve 12. When the automatic valve 12 is opened, the cooling water is supplied to the cooling water nozzle 20.

In the heat exchange container 1, the porous member 19 which divides up and down is attached to the heat exchange surface 2 side. The upper portion 22 of the porous member 19 is in a low pressure state because it is connected to the liquid ejector 13 of the suction means 6 as will be described later, and the cooling water supplied from the cooling water nozzle 20 is used as a heat exchange surface. 2 is supplied to the lower surface of the plate.

A steam supply pipe 16 is connected to the suction chamber of the water ejector 11 attached to the cooling water supply pipe 5. By supplying the heating steam from the steam supply pipe 16 to the cooling water flowing down in the water ejector 11, the temperature of the cooling water supplied to the heat exchange container 1 can be adjusted.

A cooling water circulation valve 18 is attached in parallel with the automatic valve 12 attached to the cooling water supply pipe 5. The cooling water circulation valve 18 is always opened slightly, and even if the automatic valve 12 is closed, a small amount of cooling water is supplied into the heat exchange container 1 to circulate a part of the cooling water continuously. It is.

The upper portion 22 of the porous member 19 of the heat exchange container 1 is connected to the inlet side of the steam trap 4 through the 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. Further, the lower end of the heat exchange vessel 1 and the pipe line 8 are connected by a branch pipe 23 branched from the pipe line 8.

The suction means 6 includes a liquid ejector 13, a cooling water tank 14, and a circulation pump 15. By driving the circulation pump 15, the cooling water in the cooling water tank 14 is supplied to the liquid ejector 13 to generate a predetermined suction force in the suction chamber 10, and the cooling water is supplied from the cooling water supply pipe 5 to the heat exchange container 1. To supply.

A cooling water supply pipe 30 is connected to the upper part of the cooling water tank 14, and a pipe on the discharge side of the circulation pump 15 is branched to connect an excess water discharge pipe 17.

  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. In this case, the vapor passes through the porous member 19 and is uniformly supplied to the entire lower surface of the heat exchange surface 2, so that uneven heating on the heat exchange surface 2 can be prevented. Condensate condensed with steam by heating passes from the branch pipe 23 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 and the cooling water is supplied to the cooling water nozzle 20, whereby the cooling water is evaporated and evaporated by the heat of the heat exchange surface 2. And cooling efficiency can be improved by cooling with the evaporation line heat.

  It can be applied as various heating and cooling devices that perform indirect heating and 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 ejector 12 Automatic valve 13 Liquid ejector 14 Cooling water tank 15 Circulation pump 18 Cooling water circulation valve 19 Porous member 20 Cooling water nozzle 23 Branch pipe

Claims (1)

  A heating or cooling fluid is supplied to the heat exchange container via a valve, and a suction means for maintaining the inside of the heat exchange container in a reduced pressure state is connected to heat or cool the heat exchanged object in the heat exchange container. What is claimed is: 1. A heating / cooling device comprising a heat exchange vessel provided with a fluid supply part for heating or cooling with a porous member interposed therebetween.