JPS6166084A - Heat exchanger using heat pipe - Google Patents

Abstract

PURPOSE:To securely and easily seal the heat pipe inserted section from outside the heat exchanger by a method wherein the packing mounted on the heat pipe inserted section of the partition wall is thrusted through a tubular member inserted into the heat pipe. CONSTITUTION:The heat exchanger 1 has an intermediate chambers 3 and 4 on both sides of the chamber 2 so that different kinds of fluids flow into the chambers 3 and 4 for the exchange of heat. For assembly, the end covers 7 and 12 of the fluid chambers 3 and 4 are removed and the heat pipe 14 having the packings 17, 17, the tubular member 18 and the packings 17, 17 inserted into the intermediate part thereof is inserted into the fluid chamber by a length of about 1/2 from outside the partition wall 6. After that, the fluid chamber 4 is moved toward the fluid chamber 3 along th4e axial direction so that the heat pipe 14 enters the hold 11a in the partition wall 11 and then the partition walls 6 and 11 are tightened with bolts 20. As a result, the packings 17, 17 are thrusted by the end surface of the tubular member 18 to be kept in a predetermined air-tight condition. Finally, the rear end covers 7 and 12 are attached to the fluid chamber 3 and 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a heat exchanger, and more particularly to a specific heat exchanger using a heat pipe to avoid mixing between two fluids undergoing heat exchange.

[Technical background of the invention and its problems] In a heat exchanger that exchanges heat between two fluids with different properties, it is necessary to avoid mixing between the two fluids and to detect leakage from heat transfer bodies and partition walls. In some cases, heat exchangers with heat pipes as heat transfer bodies are used.

This heat exchanger includes a fluid chamber arranged on both sides of an intermediate chamber,
It consists of a plurality of heat pipes that penetrate two partition walls forming an intermediate chamber and extend to both fluid chambers. By making the pressure in the intermediate chamber lower than the pressure in both fluid chambers, if leakage occurs from the penetrating portion of the partition wall, the structure is configured so that the leakage occurs from the fluid chamber to the small to medium chamber, and the drain in the intermediate chamber This is intended to detect i#Ii leakage.

With this configuration, the two fluids are completely separated in the intermediate chamber, so the two fluids do not mix. However, because many heat pipes pass through the two partition walls that form the intermediate chamber, this There are disadvantages such as a lot of effort is required to seal the penetration part, and maintenance and inspection are also complicated.
This improvement was desired.

Purpose of the Invention The present invention has been made in view of the above-mentioned circumstances, and uses a heat pipe that easily and reliably seals the heat pipe penetration portion of the partition wall provided on both sides of the intermediate chamber. The purpose is to provide a heat exchanger with

[Summary of the Invention] The present invention provides a method in which a pair of fluid chambers are disposed opposite to both sides of an intermediate chamber via a partition wall, and a heat pipe extending to the pair of fluid chambers is provided through the partition wall. In the heat exchanger, the gasket attached to the partition wall penetration part of the heat pipe is pressed against the tubular body inserted into the heat pipe or through the tubular body and the elastic body, and the heat exchanger is tightened from the outside. The seal is pressed to make sealing easy and reliable.

[Embodiments of the Invention] Hereinafter, heat exchange using the heat pipe of the present invention will be described. 1 and 2, a heat exchanger 1 includes an intermediate chamber 2 and fluid chambers 3 and 4 into which different fluids for heat exchange flow into both sides. It is arranged and configured. Here, the fluid chamber 3 has a partition wall 6 integrally provided on the − side in the longitudinal direction of the body portion 5, and an end portion 7 removably provided on the other side via a 7 flange 5a and a packing (not shown). A fluid inlet 8 and a fluid outlet 9 are provided in the middle of the portion 5. Further, the fluid chamber 4 is integrally provided with Hvl on the − side in the longitudinal direction of the body portion 1O and on the side facing the partition wall 6 of the fluid chamber 3, and has a 7 flange 10a and a gasket (not shown) on the other side.
An end plate 12 is detachably provided through the body 10, and an inlet 12 and an outlet 13 for other fluids are provided in the middle of the body 10.

The intermediate chamber 2 is formed by the partition wall 6.11 of both fluid chambers 3.4 configured in this way and the cover 61.11a provided on this side partition wall and one of which can be inserted into the other. The chamber 2 communicates with the atmosphere, and leaked fluid can be detected by providing a leak detector in the intermediate chamber 2 and can be discharged to a predetermined location via piping (not shown).

Further, a plurality of heat pipes 14 whose middle portions penetrate through the side partition walls 6° 11 are arranged in the two fluid chambers 3.4. The penetration portion of the side partition wall 6.11 of this heat pipe 14 is 82
As shown in the figure, an annular recess 15, concentric with the through holes 6a, lla of the heat pipe 14 of the side partition walls 6, 11, respectively.
16 is provided, and annular gaskets L7 and 17 each having a circular cross section are inserted into the recesses 15 and 16, and located in the intermediate chamber 2 and connected to the heat pipe L4 (:・hole 1).
8a, and both end surfaces are located inside. It is configured by providing a tubular body 18 that presses L7. Here, the tubular body 18 has stepped portions 18b at both ends.
, 18b are provided, and this stepped portion 18b.

18b are respectively insertable into the recesses 15, 16, and a hole 19 is provided which communicates with the hole 18a to the outside.

Next, a method of assembling the heat exchanger 1 configured as described above will be explained.

First, the end covers 7 and 12 of the fluid chambers 3 and 4 are removed, and the heat pipe 14, in which the packing 17.17, the tubular body 18, and the packing 17.17 are inserted in series into the middle part, is inserted into the partition wall 6.
Insert approximately the approximate length into the fluid chamber 3 from the outside.

After this, connect the fluid chamber 4 along the axial direction so that the heat pipe 4 enters the hole 11a of the fluid chamber 3 Si! l
Move and approach. After that, the side bulkhead 6. Tighten u with bolt 20. By tightening the bolt 2υ, the gasket 17.17, which is located inside the fluid chambers 3.4fl and 1-1, is pressed by the end surface of the tubular body 18, thereby maintaining a predetermined airtight state. The rear end covers 7 and 12 are attached.

Since it is configured as described above, the bolt 20 is inserted from the outside.
By tightening, all the heat pipes 14 penetrating the partition wall 6.11 can be sealed.
The work becomes easier, the labor is greatly reduced, and the sealing effect can be ensured.

It should be noted that the present invention is not limited to the embodiments described above, but as shown in FIG. An elastic body may be provided. That is, in the same figure, the tubular body 21 has one end surface 21.
a is provided with an annular recess 21b, and the tubular body 22 is provided with the above-mentioned 21
A block-like recess 22 having approximately the same shape on the end surface 2211 facing a
b, and coil springs 23 are provided in the recesses 21b and 22b.
Insert and hold. Also, instead of dividing the tubular body into two,
An annular elastic member 24 may be disposed close to the packing 17, and the packing 17 may be pressed and sealed through this member 24.

In this way, by pressing the packing through the tubular body and the elastic body, it absorbs the deflection that occurs when tightening the bulkhead of a large heat exchanger and the deflection that occurs due to the pressure difference between the fluid chamber and the intermediate chamber during operation. Therefore, the sealing effect can be maintained without any change.

[Effects of invention This is because the Ming Dynasty is made up of 8 yen as described above.

It is possible to easily and reliably seal the penetration portion of the heat pipe extending to the fluid chambers on both sides of the intermediate chamber by penetrating the walls provided oppositely on both sides of the intermediate chamber.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of a heat exchanger using the heat pipe of the present invention, Fig. 2 is a sectional view showing an enlarged section A in Fig. 1, and Fig. 3 is a sectional view showing another embodiment of the heat exchanger of the present invention. It is a sectional view showing the main part of the example. 2.3... Fluid chamber 6, 11... Partition wall 14...
・Heat pipe 17...Patzkin 18.21.22・
... Tubular body 23 ... Coil spring agent Patent attorney Yoshiaki Inomata (and one other person) To (Ω

Claims (3)

[Claims] (1) A heat exchanger in which a pair of fluid chambers is disposed through partition walls provided on opposite sides of an intermediate chamber, and a heat pipe extending to the pair of fluid chambers is provided penetrating the partition walls. A heat exchanger using a heat pipe, characterized in that a packing attached to a penetrating portion of the partition wall of the heat pipe is pressed and sealed by a tubular body inserted into the heat pipe. (2) A heat exchanger using a heat pipe according to claim 1, wherein the tubular body is provided with a hole that communicates the insertion hole of the heat pipe with the outside. (3) A heat exchanger in which a pair of fluid chambers is disposed through partition walls provided oppositely on both sides of an intermediate chamber, and a heat pipe extending to the pair of fluid chambers is provided penetrating the partition walls. A heat exchanger using a heat pipe, characterized in that a packing attached to a penetrating portion of the partition wall of the heat pipe is pressed and sealed by a tubular body inserted into the heat pipe and an elastic body.