JP2003307392A - Heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of accurately condensing steam without requiring any cooling fluid. <P>SOLUTION: A steam receiver part 2 is provided above a sealed container 1. Loop type thin pipe heat pipes 3, 4 and 5 are provided inside and outside the steam receiver part 2. Inner parts of the steam receiver parts 2 of the heat pipes 3, 4 and 5 are provided as heat accumulation parts 11 and outer parts are provided as heat radiating parts 12. The steam receiver part 2 and inside of the container 1 are connected by a fluid discharging pipe 16. The steam generated in the container 1 moves from a pipe passage 7 to the steam receiver part 2 and is condensed by heat exchange with the loop type thin pipe heat pipes 3, 4 and 5. As the result, the steam can be surely condensed without requiring any cooling fluid. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger capable of eliminating steam rising from a container containing high-temperature water or the like. 2. Description of the Related Art A conventional heat exchanger of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. 60-120186. This is achieved by installing a cooling pipe inside a heat recovery chamber having a steam supply port, connecting the air release section to this heat recovery chamber, and storing condensate in the air release section and the lower part of the heat recovery chamber.
It is possible to prevent the non-condensable gas from flowing into the heat recovery chamber and efficiently exchange heat. [0003] The above-mentioned conventional heat exchanger requires a cooling water to condense steam and a large amount of cooling water to completely condense steam. was there. Therefore, a technical problem of the present invention is to provide a heat exchanger that can reliably condense steam without requiring a cooling fluid. Means taken to solve the above-mentioned problem is that in which steam rising from a container containing a high-temperature liquid and rising from a container containing heat is condensed by heat exchange with a heat pipe. A steam reservoir is continuously provided above the container, and a plurality of thin flat-plate-shaped loop-type thin tube heat pipes are attached to the steam reservoir in the vertical direction, and the inside of the steam reservoir of the loop-type thin tube heat pipe is referred to as a heat absorbing portion. In addition, the outside is a heat radiating section, and a communication section is provided for communicating a plurality of stages of loop-type thin tube heat pipes. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A loop-type thin tube heat pipe contains a working fluid for heat transport in a loop-type thin tube formed in a loop shape in a thin flat plate, and a steam reservoir of the loop-type thin tube. By using the inside portion as a heat absorbing portion and using the outside portion of the steam reservoir as a heat radiating portion, the device has a thin shape and excellent heat transfer capability. [0006] Steam generated in the container reaches the steam reservoir,
By absorbing heat and condensing it in the heat absorbing portion of the loop-type thin tube heat pipe, steam rising up and mist can be eliminated. By using the loop-type thin tube heat pipe as described above, steam can be surely condensed without requiring a cooling fluid. FIG. 1 shows a closed container 1 and a steam reservoir 2.
And the loop-type thin tube heat pipes 3, 4, 5 constitute a heat exchanger. The container 1 is a cylindrical tank that contains a high-temperature liquid 6 such as hot water. A pipe 7 communicating with the steam reservoir 2 is attached to the upper part of the container 1. A valve 8 is interposed in the pipe 7. An atmosphere opening pipe 10 is connected to the upper right portion of the container 1 via a valve 9. [0009] The thin flat heat pipes 3, 4, 4, and 4 penetrate through the hollow cylindrical steam reservoir 2, and inside and outside thereof.
5 is arranged. In this embodiment, the heat pipe 3
An example is shown in which four and four are arranged vertically in three stages. The loop-type thin tube heat pipes 3, 4, and 5 contain a working fluid for heat transport in a loop-type thin tube formed in a loop shape in a thin flat plate,
By using the inner portion of the steam reservoir 2 of the loop-type thin tube as the heat absorbing portion 11 and the outer portion thereof as the heat radiating portion 12, it has a thin shape and excellent heat transfer capability. [0010] A multi-stage loop type thin tube heat pipe 3,
The communication parts 13 and 14 are provided at substantially the center of the communication parts 4 and 5 with their positions shifted from each other. The communicating portions 13 and 14 are formed by through holes vertically penetrating portions other than the loop-shaped thin tube portion.
In the present embodiment, an example is shown in which the communicating portions 13 and 14 are provided in the heat pipes 3, 4 and 5, respectively. The communication part can be formed by using a separate pipe that is not used. The length of the heat pipes 3, 4 and 5 in the horizontal direction is the longest at the bottom, and is shortened toward the top, so that heat can be efficiently radiated to the atmosphere. A liquid discharge pipe 16 is attached in parallel with the pipe 7 to connect the steam reservoir 2 and the upper part of the container 1. The liquid discharge pipe 16 is provided with an automatic drain valve 17 for flowing only the liquid downward. On the other hand, a steam discharge pipe 19 is attached to the upper portion of the steam reservoir 2 via a valve 18. This steam discharge pipe 1
Reference numeral 9 denotes a valve for opening the valve 18 to discharge steam in the steam reservoir 2 to the outside of the system. The steam that has reached the steam reservoir 2 from the pipe 7 is
The heat is absorbed by the heat absorbing portions 11 of the loop-type thin tube heat pipes 3, 4, and 5, and condensed into a liquid, and flows down from the liquid discharge pipe 16 into the container 1. The heat of the steam absorbed by the heat absorbing section 11 moves through the loop-shaped thin tubes of the loop-shaped thin tube heat pipes 3, 4, and 5, and is radiated from the heat radiating section 12 to the atmosphere. In the above-described embodiment, an example is shown in which the loop type thin tube heat pipes 3, 4, and 5 are arranged in three stages in the steam reservoir 2. However, the number of heat pipes depends on the size of the steam reservoir 2 and condensing. It can be appropriately designed according to the amount of steam generated. As described above, according to the present invention, steam generated in a container is condensed by a loop-type thin tube heat pipe, so that steam which rises up and does not need to be cooled can be eliminated. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional configuration diagram showing an embodiment of a heat exchanger of the present invention. [Description of Signs] 1 Container 2 Steam reservoirs 3, 4, 5 Loop type thin tube heat pipe 6 High temperature liquid 7 Pipe line 11 Heat absorbing unit 12 Heat radiating units 13, 14 Communication unit

Claims (1)

Claims 1. An apparatus for condensing steam that rises from a container containing a high-temperature liquid by exchanging heat with a heat pipe, wherein a steam reservoir is provided above the container.
A plurality of thin flat-plate loop-type thin-tube heat pipes are attached to the steam reservoir at the top and bottom, and the inside of the steam reservoir of the loop-type thin tube heat pipe is used as a heat-absorbing portion and the outside is used as a heat-radiating portion. A heat exchanger comprising a communicating part for communicating a thin tube heat pipe.