JP2006308186A - Vaporization cooling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vaporization cooling device capable of evenly and effectively cooling a whole of a cooled article by vaporization. <P>SOLUTION: A cooling fluid pipe passage 6 is provided in a jacket part 2 of a reaction vessel 1. A heat pipe member 18 and a plurality of cooling fluid injection ports are provided in the cooling fluid pipe passage 6, and an end of a cooling fluid supply pipe 5 is connected thereto. The other end of the cooling fluid supply pipe 5 is connected to a part of a circulation passage 15 of a combination vacuum pump 4. When cooling the reaction vessel 1, the cooling fluid is injected into the jacket part 2 from the cooling fluid supply pipe 5 and the cooling fluid pipe passage 6, and thereby the cooling fluid is supplied to the whole of the reaction vessel 1, and the reaction vessel 1 can be cooled by vaporization evenly. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an evaporative cooling device that cools an object to be cooled by evaporative latent heat of a cooling fluid in an evaporative cooling chamber.

  The evaporative cooling device connects the cooling fluid supply pipe and suction means to the evaporative cooling chamber, attaches a liquid collecting plate to the lower part of the cooling fluid supply pipe, and blows compressed air to the cooling fluid supply pipe and the liquid collecting plate. A supply pipe is connected, and steam is condensed on the outer periphery of the cooling fluid supply pipe to form a cooling fluid, and this cooling fluid is collected on a liquid collecting plate and supplied to the whole object to be cooled by compressed air uniformly. Thus, the entire object to be cooled can be cooled without unevenness.

In this evaporative cooling device, the vapor supplied to the evaporative cooling chamber is cooled by a cooling fluid supply pipe and condensed to form a cooling fluid, and then supplied to the object to be cooled together with the compressed air. There was a problem that the whole could not be uniformly and efficiently vaporized and cooled.
Japanese Patent No. 3170669

  The problem to be solved is to provide an evaporative cooling apparatus that can uniformly and efficiently evaporate and cool the entire object to be cooled.

  The present invention forms a vaporization cooling chamber for cooling an object to be cooled, supplies a cooling fluid to the vaporization cooling chamber, and vaporizes and cools the object to be cooled by connecting the vaporization cooling chamber to suction means. A cooling fluid conduit through which the cooling fluid flows is disposed in the vaporization cooling chamber, and a plurality of cooling fluid injection ports for injecting the cooling fluid to the outside are provided in the cooling fluid conduit, and a heat pipe is provided around the cooling fluid conduit. A member is attached.

  The evaporative cooling device of the present invention includes a cooling fluid conduit through which cooling fluid flows down in the evaporative cooling chamber, and a plurality of cooling fluid injection ports for injecting the cooling fluid to the outside are provided in the cooling fluid conduit. The cooling fluid can be supplied directly and directly from the plurality of cooling fluid ejection ports to the entire vaporization cooling chamber, and the entire object to be cooled can be vaporized and cooled without unevenness. In addition, the vaporized vapor of the cooling fluid that has evaporated and vaporized by taking the heat of the object to be cooled in the vaporization cooling chamber is cooled by a heat pipe member attached around the cooling fluid conduit and condensed to evaporate the vaporized vapor. Cooling efficiency can be improved by promoting convection in the room.

  In the present invention, a cooling fluid injection port for injecting a cooling fluid to the outside is provided in the cooling fluid pipeline. As the cooling fluid injection port, a plurality of openings such as notches are provided in the cooling fluid pipeline. Alternatively, an injection nozzle or the like can be attached to the cooling fluid conduit to form a cooling fluid injection port.

  In the present embodiment, an example in which the jacket portion 2 of the reaction kettle 1 is used as a vaporization cooling chamber is shown. An object to be cooled (not shown) placed inside the reaction kettle 1 is cooled by a cooling fluid as a cooling source supplied to the jacket portion 2.

  A jacket portion 2 is formed over substantially the entire circumference of the reaction kettle 1, and a combined vacuum pump 4 and a cooling fluid supply pipe 5 are connected to the jacket portion 2 as suction means. The cooling fluid supply pipe 5 is connected to a cooling fluid pipe 6 disposed in the jacket portion 2 as a vaporization cooling chamber.

  The lower part of the cooling fluid supply pipe 5 is connected to a part of the circulation path 15 of the combination vacuum pump 4 and the upper part is connected to one end part of the cooling fluid pipe 6. The cooling fluid pipe 6 is spirally disposed in the jacket portion 2 and a plurality of cooling fluid injection ports are provided on the reaction kettle 1 side of the cooling fluid pipe 6 (not shown).

A heat pipe member 18 is attached around the lower part of the cooling fluid conduit 6. As the heat pipe member 18, a so-called loop type thin pipe heat pipe is suitable. The loop-type narrow tube heat pipe 18 accommodates a working fluid for heat transport in a loop-shaped narrow tube, and uses a part of the loop-type narrow tube as a heat absorption part and uses a part other than the heat absorption part as a heat dissipation part. Therefore, it has a thin flat plate shape and an excellent heat transfer capability.

  The loop type thin tube heat pipe 18 is a coiled flat plate, and one end portion is disposed in contact with the outer surface of the cooling fluid conduit 6 and the other end portion is disposed in the jacket portion 2. A portion in contact with the outer surface of the cooling fluid conduit 6 is a heat radiating portion that radiates heat to the cooling fluid via the cooling fluid conduit 6, and the other end is a heat absorbing portion that absorbs heat.

  A steam supply pipe 8 with a flow rate adjusting valve 7 interposed is connected to the upper left portion of the jacket part 2. By supplying steam for heating at a predetermined pressure, that is, temperature from the steam supply pipe 8 to the jacket portion 2, the heat exchanged material in the reaction kettle 1 can be heated.

  A discharge pipe 9 is connected to the lower right side of the jacket portion 2 and connected to the ejector 10 of the combination vacuum pump 4. An open / close valve 11 and a gas-liquid separator 12 are attached to the discharge pipe 9. The gas-liquid separator 12 can separate the vapor and the liquid flowing down from the discharge pipe 9, respectively, and the separated vapor is sucked into the vapor ejector 3, while the separated liquid is a pipe line. 20 is sucked through the lower ejector 10.

  The steam ejector 3 has an inlet side connected to a branch pipe 21 branched from the steam supply pipe 8 and an outlet side connected again to the front side of the flow rate control valve 7 of the steam supply pipe 8 by a pipe line 22. A part of the steam in the jacket part 2 flowing down from the pipe 9 is sucked by the steam ejector 3 and supplied again from the steam supply pipe 8 to the jacket part 2, thereby forcing the steam in the jacket part 2. It can be circulated.

  The combination vacuum pump 4 is formed by sequentially communicating the ejector 10, the tank 13, and the circulation pump 14 through the circulation path 15. A cooling water supply pipe 16 for supplying cooling water as a cooling fluid is connected to the upper portion of the tank 13. A part of the circulation path 15 is branched to connect the excess water discharge pipe 17 and the above-described cooling fluid supply pipe 5. The cooling fluid supply pipe 5 can evaporate and cool the reaction kettle 1 by supplying a part of the circulating fluid circulating through the combination vacuum pump 4 to the cooling fluid pipe 6 of the jacket portion 2.

The left side surface of the jacket portion 2 is connected to the ejector 10 of the combination vacuum pump 4 via a pipe line 23 and an on-off valve 24. The conduit 23 is for sucking vaporized vapor of the cooling fluid generated in the jacket portion 2 to the ejector 10.

  When the object to be cooled in the reaction kettle 1 is cooled, the cooling fluid is supplied from the cooling fluid supply pipe 5 into the cooling fluid pipe 6 to fill the cooling fluid pipe 6 with the cooling fluid, and at the same time, not shown. Cooling fluid is ejected from the plurality of cooling fluid ejection ports provided on the reaction kettle 1 side of the cooling fluid pipe 6 to the entire outer surface of the reaction kettle 1.

On the other hand, the circulation pump 14 of the combination vacuum pump 4 is driven, and the inside of the jacket portion 2 is evacuated to a predetermined pressure state, for example, a vacuum below atmospheric pressure, through the discharge pipe 9 or the pipe line 23 by the suction force generated by the ejector 10. By setting the state, the cooling fluid injected to the outer surface of the reaction kettle 1 takes the heat of the object to be cooled in the reaction kettle 1 and evaporates and vaporizes and cools the object to be cooled by the latent heat of vaporization. be able to.

When the reaction kettle 1 is cooled in this way, the cooling fluid can be uniformly and uniformly supplied to the entire outer surface of the reaction kettle 1 from the plurality of cooling fluid injection ports of the cooling fluid conduit 6. The whole can be vaporized and cooled evenly. Further, by cooling and condensing a part of the vapor generated in the jacket portion 2 with the heat pipe member 18, convection of the vaporized vapor in the jacket portion 2 is promoted, and the cooling efficiency of the object to be cooled is improved. Can be made.

  The vaporized vapor of the cooling fluid that has cooled the object to be cooled by the jacket portion 2 and a part of the cooling fluid that could not be vaporized are sucked into the ejector 10 through the discharge pipe 9 or the pipe line 23 and reach the tank 13.

  Since the suction force that can be generated by the ejector 10 is determined by the temperature of the fluid flowing down the ejector 10, the cooling water supply pipe 16 appropriately supplies cooling water to the tank 13 by appropriately supplying the cooling water to the tank 13. The suction force of the ejector 10 can be controlled by adjusting the fluid temperature.

  On the other hand, when the object to be heated in the reaction kettle 1 is heated, the steam is heated to the object to be heated in the reaction kettle 1 by supplying steam at a temperature suitable for heating from the steam supply pipe 8 to the jacket portion 2. Give and heat. Condensate condensed with steam by heating and a part of the steam pass through the discharge pipe 9 and the gas-liquid separator 12, and only the condensate from which the steam has been separated is sucked into the ejector 10 from the pipe line 20 and reaches the tank 13. At the same time, the steam separated from the condensate is sucked into the steam ejector 3 and supplied to the jacket portion 2 again from the conduit 22 and the steam supply pipe 8.

The block diagram which shows the Example of the vaporization cooling device of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reaction kettle 2 Jacket part 3 Steam ejector 4 Combination vacuum pump 5 Cooling fluid supply pipe 6 Cooling fluid pipe line 8 Steam supply pipe 9 Discharge pipe 10 Ejector 12 Gas-liquid separator 13 Tank 14 Circulation pump 15 Circulation path 18 Heat pipe member

Claims (1)

A vaporization cooling chamber for cooling an object to be cooled is formed, and a cooling fluid is supplied to the vaporization cooling chamber, and the vaporization cooling chamber is connected to a suction means to evaporate and cool the object to be cooled. A cooling fluid conduit through which the cooling fluid flows is arranged, a plurality of cooling fluid injection ports for injecting the cooling fluid to the outside are provided in the cooling fluid conduit, and a heat pipe member is attached around the cooling fluid conduit A vaporization cooling device characterized by that.

Images