JPH0518622Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a heat pipe type heat exchanger used for recovering exhaust heat from, for example, industrial heating furnaces, drying furnaces, and soaking furnaces.

Prior Art and its Problems As a heat pipe heat exchanger, as shown in FIGS. 6 and 7, a casing 34 is divided into two by a partition wall 31 into a high temperature fluid passage chamber 32 and a low temperature fluid passage chamber 33; It consists of a plurality of heat pipes 35 with spiral fins penetrating the inner partition wall 31 and protruding into both chambers 32 and 33.
is composed of two parallel wall members 36 and a sealing material 37 filled between the members 36, and each wall member 36 has a substantially semicircular notch 3 at a predetermined position on the side.
A plurality of rectangular plates 39 having a diameter of 8 are arranged so as to be connected to each other in the width direction, and each side edge 40 of the adjacent rectangular plates 39 has a notch 38 facing each other.
The heat pipe 35 passes through the circular hole 41, and the spiral fins 35
It has been well known that a is interposed between the overlapping side edges 40 (Utility Model Application No. 58-52466).
(see publication).

However, in such a heat exchanger, since the spiral fins 35a are interposed between the overlapping side edges 40, if the pitch of the fins 35a is large, there will be a gap between the side edges of adjacent rectangular plates 39. There is a problem in that fluid leakage occurs due to the gaps.

The object of this invention is to provide a heat pipe type heat exchanger that does not cause fluid leakage between a high temperature fluid passage chamber and a low temperature fluid passage chamber.

Means for Solving Problems The heat pipe type heat exchanger according to this invention has a casing divided into two by a partition wall into a high temperature fluid passage chamber and a low temperature fluid passage chamber, and a casing that penetrates the partition wall and protrudes into both chambers. In a heat pipe type heat exchanger consisting of a plurality of heat pipes, the partition wall is composed of a plurality of wall structural members arranged to be connected to each other in the front-back direction and extending in the vertical direction,
Each wall component consists of a pair of left and right opposing walls and a connecting wall that connects the two opposing walls. A semicircular notch is provided at a predetermined position so that a substantially circular heat pipe through hole is formed in the heat pipe.
Heat-resistant sheet-like packing is fixed to the side edge surfaces of both opposing walls so as to span each pair of left and right opposing walls having notches, and a heat pipe is passed through each through-hole through the packing. It is characterized in that the connecting walls of adjacent wall constituent members are connected by bolts and nuts.

Embodiments Hereinafter, embodiments of this invention will be described with reference to FIGS. 1 to 5.

The heat pipe type heat exchanger comprises a casing 4 divided into left and right halves into a high temperature fluid passing chamber 2 and a low temperature fluid passing chamber 3 by a partition wall 1, and a plurality of straight heat pipes with spiral fins 5 penetrating the partition wall 1 and projecting into both the left and right chambers 2, 3. Although not shown in the figure, high temperature fluid passing chamber 2 is connected to a front end and a rear end thereof in communication with high temperature fluid passing chamber 2, and low temperature fluid passing chamber 3 is connected to a front end and a rear end thereof in communication with low temperature fluid passing chamber 3.

The casing 4 has horizontal upper and lower frames 6 and 7.
, vertical left and right side frames (not shown) which are removably attached to the left and right ends of these frames, and a pair of front and rear central frames 8 fixed between the upper and lower frames 6 and 7 at the center of their lengths. It consists of. On the lower surface of the upper frame 6 and the upper surface of the lower frame 7,
Projections 9 extending in the front-rear direction are provided at positions to the right from the center.

The surface of the heat pipe 5 is provided with spiral fins 5a except for the central part of the length that penetrates the partition wall 1.
is formed.

The partition wall 1 includes a plurality of wall structural members 1 arranged so as to be connected to each other in the front-back direction and extending in the vertical direction.
It is composed of 2 and 13. The wall structural members 12 at both the front and rear ends have a substantially H-shaped cross section, and the remaining structural members 13 between these wall structural members 12 have a substantially H-shaped cross section.
It also consists of a pair of left and right opposing walls 14 and a connecting wall 15 that connects both opposing walls 14. The wall components 12 at both the front and rear ends are bolted to the front and rear central frames 8.

At both upper and lower ends of each wall component 12, 13, the opposing wall 14 is welded to the protrusion 9 with the right side surface of the opposing wall 14 on the right side in contact with the left side surface of the protrusion 9 of the upper and lower frames 6, 7. By this, the upper and lower frames 6, 7
is fixed. A seal member 16 is interposed between the upper end surface of the opposing wall 14 of each wall component 12, 13 and the lower surface of the upper frame 6, and between the lower end surface of the opposing wall 14 and the upper surface of the lower frame 7. .

The rear side of each opposing wall 14 of the front wall component 12, the front side of each opposing wall 14 of the rear end wall component 12, and the remaining wall components 13 between the front and rear wall components 12. Approximately circular heat pipe through holes 1 are provided on both front and rear sides of each opposing wall 14 between the opposing walls 14 of the adjacent wall components 12 and 13.
A plurality of approximately semicircular notches 18 are formed such that 7 is formed.
are provided at the required locations. And notch 1
A heat-resistant sheet-like packing 19 is fixed to the side edge surfaces of both the opposing walls 14 so as to span each pair of left and right opposing walls 14, and the heat pipe 5 is inserted into each through-hole 17 through the packing 19. The connecting walls 15 of the adjacent wall constituent members 12 and 13 are connected to each other by bolts 20 and nuts 22.

To describe in more detail how the adjacent wall constituent members 12 and 13 are connected, one wall constituent member 1
The head 20 of the horizontal bolt 20 is attached to the connecting wall 15 of 2 and 13.
A is welded in advance, and when the partition wall 1 is assembled, the tip thereof is inserted into the bolt insertion hole 21 of the connecting wall 15 of the other wall component 12, 13 and tightened with a nut 22.

Effects of the invention The heat pipe heat exchanger according to this invention has
The partition wall is composed of a plurality of wall members that are arranged to be connected to each other in the front-rear direction and extend in the vertical direction, and each wall member includes a pair of left and right opposing walls and a connecting wall that connects the two opposing walls. A semicircular notch is required on the side of each opposing wall of each wall component so that a substantially circular heat pipe through hole is formed between each opposing wall of the adjacent wall component. Heat-resistant sheet-like packing is fixed to the side edge surfaces of both opposing walls so as to span each pair of left and right opposing walls each having a notch, and a heat pipe is inserted into each through-hole through the packing. Since the connecting walls of adjacent wall components are connected by bolts and nuts, the sealing properties between adjacent wall components and between the wall components and the heat pipe are improved. . Therefore, no fluid leakage occurs between the high temperature fluid passage chamber and the low temperature fluid passage chamber. In particular, since the sheet-like packing is fixed to the side edge surfaces of both opposing walls so as to straddle each pair of left and right opposing walls, both edges of the packing exposed to the high-temperature fluid passage chamber and the low-temperature fluid passage chamber are Even if it deteriorates, other parts do not deteriorate, so high sealing performance can be maintained for a long period of time.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of this invention, where Figure 1 is a partially enlarged perspective view showing the inner partition wall, Figure 2 is a front view, and Figure 3 is a partially enlarged side view showing the inner partition wall. , FIG. 4 is a sectional view taken along the - line in FIG. 3, FIG. 5 is a sectional view taken along the - line in FIG. 3, FIGS. 6 and 7 show conventional examples, and FIG. A partial side view showing the wall, and FIG. 7 is a sectional view taken along the - line in FIG. 6. 1...Inner partition wall, 2...High temperature fluid passage chamber, 3...
...Low temperature fluid passage chamber, 5... Heat pipe with spiral fins, 12, 13... Wall component, 14... Opposing wall, 15... Connection wall, 17... Heat pipe through hole, 18... Notch , 19... Patsukin, 20
...Boruto, 22...Natsuto.

Claims (1)

[Scope of utility model registration request] A heat pump consisting of a casing 4 divided into two by a partition wall 1 into a high-temperature fluid passage chamber 2 and a low-temperature fluid passage chamber 3, and a plurality of heat pipes 5 penetrating the partition wall 1 and protruding into both chambers 2 and 3. In the pipe type heat exchanger, the partition wall 1 is composed of a plurality of wall members 12 and 13 that are arranged to be connected to each other in the front-back direction and extend in the vertical direction, and each wall member 12 and 13 has a left and right side. It consists of a pair of opposing walls 14 and a connecting wall 15 that connects both opposing walls 14, and each opposing wall 14 of each wall component 12, 13 is provided with a side wall of each opposing wall 14 of the adjacent wall component 12, 13. A semicircular notch 18 is provided at a predetermined position so that a substantially circular heat pipe through hole 17 is formed between each pair of left and right opposing walls 14 having the notch 18.
A sheet-like packing 19 having heat resistance is fixed to the side edge surfaces of both opposing walls 14 so as to extend over the sides, and the heat pipe 5 is passed through each through hole 17 via the packing 19, and each adjacent wall structure A heat pipe type heat exchanger characterized in that connecting walls 15 of members 12 and 13 are connected by bolts 20 and nuts 22.