JPH0129435Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a heat exchange tube shelf that can be installed in the hold of a fishing boat and used as a cooler for freezing and preserving fish, or as other heat exchange equipment. Regarding the improvement of

(Prior art) Among these types of heat exchange tube shelves, the one to which the present invention relates is made of extruded aluminum and is integrally formed with a pair of shelf plates arranged in parallel and a plurality of tubes between them. It includes a main body in which several elements are joined side by side so that the shelf boards of each element are on the same surface,
Bend pipes or headers are installed at both ends of the main body to allow the heat exchange medium to flow in a meandering manner through the pipes of the main body. Devices using such elements are preferably used with relatively large tube spacing, thus reducing the number of tubes and increasing the flow rate of the heat exchange medium.

(Problems to be Solved by the Invention) In the conventional structure in which the ends of the pipes 12 of the pipe shelf body 1 are connected to the ends of adjacent pipes by bend pipes 21 as shown in FIG. 7, the bend pipes protrude. Therefore, there was a problem that unnecessary length was created and space was wasted. In addition, as shown in Fig. 8, in order to install a common header 2 at the end of the pipe shelf main body, in the conventional structure, it was necessary to interpose a short pipe 22 between them. Using this method had the problem of doubling the number of welding points and creating wasted space by the length of the short tube, which was contrary to compactness.

The purpose of the present invention is to overcome the above-mentioned problems of the prior art, and therefore, it is possible to directly weld the header to the end of the pipe shelf body, thereby avoiding unnecessary length and making it possible to Therefore, it is an object of the present invention to provide a heat exchange pipe shelf of a type that is suitable for downsizing.

(Means for Solving the Problems) The heat exchange pipe shelf according to the present invention has a feature at the end of the pipe shelf main body to which the header is fixed, and each shelf board adjacent to both sides of each pipe has a A notch is formed in the portion, and the end of each tube of the main body can be appropriately welded to a corresponding position on the header over the entire circumference by the notch.

(Effect of the above means) A pair of shelf boards of each element at the end of the main body include:
Since there are cut-outs adjacent to both sides of the integral tube, each tube can be easily welded to the header at the end as if it were a simple tube. Furthermore, since each tube is independently welded, each tube can be inspected for leaks independently, and if there is a defect, its location can be detected. In addition, the dimensions are the same as a type in which the header is directly fixed to the end of the main body, so there is no wasted space.

(Example) Next, an example of the present invention will be described with reference to the drawings. 1 and 2 show the whole of a heat exchange tube shelf according to an example of the present invention, and in this embodiment, one tube shelf 1 is composed of three elements 10. The number of elements is determined by the width dimension of the tube shelf. For normal ones, the width of the pipe shelf is 1~
2m, the length is 3-6m, and one pipe shelf has 3-6m.
Six elements are included. Each element 10 is made of extruded aluminum and consists of a pair of parallel shelf plates 11 and an appropriate number of tubes 12 integrally formed between them.
As shown in the figure, the elements 10 are connected to each other so that the surfaces of the shelf boards 11 of each element are on the same surface. It goes without saying that the cross-sectional shape of the tube 12 does not necessarily have to be circular, and may have other shapes such as a square or an oval. In the structure according to the present invention, the headers 2 are directly attached to both ends of the pipe shelf 1, partition plates are inserted at appropriate positions within each header, and the pipes 12 and headers 2 form a meandering flow path. An inlet 3 and an outlet 4 for a heat exchange medium such as a refrigerant are provided at the end of the tube shelf, and the medium introduced from the inlet 3 flows in a meandering manner through each passage 12 of the tube shelf and flows out from the outlet 4. Cool or heat something placed above or below it. Usually, an appropriate number of such tube shelves are arranged one above the other at a predetermined interval, and objects to be preserved, such as fish, to be cooled are stored between them. In many cases, each pipe shelf is attached to channel material beams horizontally provided at appropriate intervals in its longitudinal direction via aluminum flat bars with bolts or the like.

Note that there are various methods for joining the elements 10 side to side, and therefore any method can be used. The side edges of the element 10 constituting the side edges of the main body 1 are formed in a curved shape.

The features of the heat exchange pipe shelf according to the present invention are as shown in Figure 1.
As shown in FIGS. 3 and 4, notches 13 are formed at the ends of the tube shelf body 1 in the portions of each shelf of each element adjacent to both sides of the tubes 12, thereby allowing the headers 2 to correspond to each other. This makes it possible to weld the end of each tube 12 to the position of the hole provided at the position. Although the shape of the notch 13 can be arbitrarily selected, one example is a semi-ellipse as shown in the figure. Therefore, in this tube shelf, there are notches 13 on both sides of the end of each tube 12 in the pair of shelf boards 11 that sandwich each tube 12,
The end of the tube 12 is welded to the header 2 around the entire circumference. It goes without saying that the dimension of the notch 13 in the direction parallel to the tube 12 is preferably the smallest dimension that allows welding of the tube 12 to the header 2.

The cutouts 13 may be formed separately from each other as shown in FIG. 1, but in some cases, the cutouts 13 between adjacent tubes 12 may be formed in common, as shown in FIG. It's okay. 13' in FIG. 5 shows such a common notch.

Therefore, in this pipe shelf, each pipe 1 is connected to the header 2.
The ends of 2 can be welded around the entire circumference without difficulty, just like a simple tube. and,
Since each tube 12 of the main body 1 is independently welded, it is easy to inspect for leaks, and if there is a defect, it can be immediately determined in which position the leak has occurred.

Note that the cross-sectional shape of the header 2 may be square as shown in FIG. 4, or only the side surface joined to the tube 12 may be flat and the other portions may be circular, or the entire circumference may be circular. It may be of any shape.

Furthermore, since the header 2 is directly fixed to the end of the main body 1 as described above, the stopper 14 at the end of the main body can be easily fitted using the header as shown in FIG. It can be attached and detached freely. The mating part 15 on the header side is formed at the same time as the header is molded, and the mating part 15 on the stopper side is formed at the same time as the header is molded.
6 can also be formed during molding of the stopper.

(Effect of the invention) As described above, according to the invention, the header can be directly welded to the pipe shelf body without using a bend pipe or inserting a short pipe, thereby eliminating wasted longitudinal dimension. does not occur. In addition, since there are notches in each shelf on both sides of each tube, each tube is welded to the header as if it were an independent tube, so welding work can be done properly and easily, and leakage inspection is also possible. Can be done properly.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a heat exchange pipe shelf according to an example of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a perspective view of a part thereof, and Figs. are sectional views taken along line BB and line CC in FIG. 3, FIG. 5 is a plan view of another embodiment, FIG. 6 is a perspective view partially showing another embodiment, and FIG. FIG. 8 is a perspective view of a part of a conventional pipe shelf of the type using bent pipes, and FIG. 8 is a perspective view of a part of a conventional pipe shelf of the type in which short pipes are inserted. In the figure, 1... tube shelf main body, 2... header, 10... element, 11... shelf board, 12... pipe, 13... notch part.

Claims (1)

[Claims for Utility Model Registration] (1) A tube made by joining several elements formed from extruded aluminum material side to side, consisting of a pair of parallel shelf plates and a plurality of tubes integrally provided between them. It includes a shelf main body and a pair of headers fixed to both ends of the main body, the heat exchange medium is configured to flow in a meandering manner through the pipes of the main body and the headers, and each of the pipes at the end of the main body A tube shelf for heat exchange, wherein a notch is formed in a portion of each shelf board adjacent to both sides so that an end of each tube can be welded to the header over its entire circumference. (2) Utility model registration In the heat exchange tube shelf according to claim 1, a notch on one side of the tube of the shelf board is formed in common with a notch on another adjacent tube. Heat exchange pipe shelf.