JPH0314638Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a heat transfer tool for trace pipes.

Conventional technology and its problems In chemical plants, etc., heating tubes are used for transporting fluids with high viscosity and high melting point, and as a heating means, a trace tube such as a steam heating type is installed along the outside of the process tube. An external tracing method is common, in which heat is conducted from the trace tube to the process tube.

Conventionally, in such an external tracing method, in order to improve the heat transfer effect from the trace tube to the process tube, as shown in FIG. Measures have been proposed to expand the heat transfer area by attaching it to the application of
The heat transfer cement layer c must be removed for each repair, which is inconvenient and the removed heat transfer cement layer c
could not be reused and was uneconomical. Furthermore, due to the vibration of the process tube a and trace tube b and the difference in thermal expansion between the tubes a and b and the heat transfer cement layer c, the cement layer c is likely to crack or peel, and there is a risk of peeling and falling off. There were also other problems.

In addition, a trace pipe has been proposed in which metal fins are welded together in a shape that matches the outside diameter of the process pipe to be tied together, but this method requires a lot of work to weld the metal fins, and Since the metal fins that have been removed cannot be removed from the trace pipe, there are problems in that it may be difficult to repair the trace pipe.

The present invention was made with the aim of eliminating these conventional problems.

Means for Solving the Problems The present invention is a heat transfer device for transmitting heat to a process pipe from a trace pipe installed along the pipe, the device being detachably attached to the outside of the trace pipe. A circular tube portion having a split for fitting, and an arcuate curve that extends outward from opposite ends of the split in the circular tube portion and is attached to the peripheral side of the process pipe. a plate-shaped foot portion, and an inclined side plate portion folded back toward the circular tube portion from the outer end of the foot portion, and a side plate portion surrounded by the foot portion and the inclined side plate portion is provided on both sides of the circular tube portion. The present invention relates to a heat transfer tool for a trace pipe characterized in that a triangular cavity is formed.

Embodiment An embodiment of the present invention will be described below based on the accompanying drawings.

The heat transfer tool for trace pipes according to the present invention includes a circular tube part 2 having a split 1 for detachably fitting on the outside of a trace pipe b, and opposite ends 1a, 1a of the split 1 of the circular pipe part 2. arcuately curved plate-shaped legs 3, 3 which extend outward from each other and are attached to the circumferential side of the process tube a; The foot portions 3 are provided on both sides of the circular tube portion 2.
A triangular cavity 5 surrounded by the inclined side plate portion 4 is formed. Such heat transfer tools are obtained by processing metal plates such as aluminum plates, duralumin plates, stainless steel plates, etc. to have thermal conductivity.In particular, aluminum plates are easy to process, inexpensive, and have good thermal conductivity. It is suitable because it is good.

FIGS. 2 and 3 show one usage situation of the heat transfer tool of the present invention. When in use, the split 1 of the circular tube part 2 is expanded against the retained elasticity, and the circular pipe part 2 is fitted onto the outside of the tracing pipe b through the split 1, and the arcuate curve is Plate-shaped legs 3, 3 are attached to the peripheral side of the process tube a.

In this state of use, the heat from the trace tube b is conducted to the process tube a through the plate-shaped legs 3, 3 of the heat transfer tool, that is, the enlarged heat transfer surface, and good thermal conductivity is obtained. . In order to transfer heat more effectively, the cavities 5, 5 can be densely filled with metal fibers or other heat transfer material 6.

Effects As described above, according to the heat transfer device of the present invention, it is possible to conduct heat from the trace pipe b to the process pipe a well and with less heat transfer loss, and it is possible to improve the thermal economy and to improve the thermal economy. On the other hand, since the circular pipe portion 2 can be fitted through the split 1 by a one-touch operation, workability can be improved compared to the conventional method in which cement painting requires welding work. Furthermore, since it is detachable from the trace pipe b, the trace pipe b
When repairing, it can be removed more easily and does not interfere with the repair, and after repair, it can be refitted and reused, so there is no wastage of materials, and it is structurally simple and can be manufactured at low cost. Combined with this, it is economically superior.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention, FIGS. 2 and 3 are explanatory diagrams showing one usage situation,
FIG. 4 is a longitudinal sectional view showing a conventional example. In the figure, 1 is a split, 2 is a circular tube part, 3 is a plate-like foot part, 4 is an inclined side plate part, 5 is a triangular cavity, and 6 is a heat transfer material.

Claims (1)

[Claims for Utility Model Registration] A heat transfer device for conducting heat from a trace pipe installed along a process pipe, which is detachably fitted to the outside of the trace pipe. a circular tube portion having a split; and an arcuate curved plate-like foot that extends outward from the opposite end of the split of the circular tube portion and is attached to the circumferential side of the process pipe. and an inclined side plate part folded back toward the circular tube part from the outer end of the foot part, and a triangular cavity surrounded by the foot part and the inclined side plate part is provided on both sides of the circular tube part. A heat transfer tool for trace pipes, characterized in that: The heat transfer tool for a trace pipe according to claim 1, wherein the triangular cavity is filled with a heat transfer material such as metal fiber.