JPS6311497Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to an end support device for a heat pipe in a heat exchanger used, for example, in a waste heat recovery device.

2. Description of the Related Art In general, a heat pipe is a device in which a working fluid that acts as a heat transfer medium and a wick that moves this working fluid from a condensing section to an evaporating section by capillary action are sealed in a sealed pipe-shaped container. be. Conventionally, as a heat exchanger using a heat pipe, a waste heat recovery device having a high-temperature gas flow path and a low-temperature gas flow path is known. In order to prevent dust contained in high-temperature exhaust gas from accumulating on the surface of the heat pipe 22, a blowing device (not shown) is installed in the center of the heat exchanger 21, and the heat pipe 22 with radial fins 23 has two stages, upper and lower. The heat pipes were arranged in separate heat pipe groups P1 and P2. The pair of left and right support plates 29, 29 that support both ends of the heat pipe 22 are each made of a single plate, and an opening 30 for attaching a blowing device is provided at the middle part of the height of the support plate 29. It was open. Also, both left and right frames 24, 25
Covering members 27 and 28, each having a substantially U-shaped cross section, are mounted facing each other with their openings facing the heat pipe groups P1 and P2 at positions corresponding to both ends of the heat pipe groups P1 and P2, respectively, and are attached to the left and right frames. A reinforcing plate 26 is disposed between the covering members 27 and 28 at 24 and 25 and closes the opening 30.
were attached to each.

However, in such a conventional device, since the left and right heat pipe support plates 29, 29 are each made of a single plate, it is difficult to attach the heat pipes 22 to these, and it is difficult to assemble the heat exchanger 21. It wasn't. Also, the support plate 29
Since the opening 30 is formed at the top, the strength is reduced and the work of opening the opening 30 is troublesome. In addition, since the support plate 29 is composed of a single plate, a large amount of material is used, and as a result, the heat exchanger 2
There was a problem in that it was not possible to manufacture 1 easily and inexpensively.

Purpose of the invention The purpose of this invention is to solve the problems of the prior art described above, and to make it easy to attach the ends of the heat pipe to the support plate, as well as to make it easier to attach the heat pipe support plate itself to the left and right frames. Heat pipes in heat exchangers are extremely simple and have low material costs, making it easy and inexpensive to manufacture the heat exchanger, making the heat exchanger lightweight and strong. It is intended to provide an end support device.

Structure of the invention In order to achieve the above-mentioned object, this invention consists of left and right frames, which are arranged oppositely at an interval corresponding to the length of the heat pipe, and a predetermined distance between the two frames. In a heat exchanger equipped with a group of heat pipes arranged in two stages, upper and lower, with a space between them,
Covering members each having a substantially U-shaped cross section are attached to both the left and right frames in pairs, upper and lower, facing each other with the openings facing the heat pipe group at positions corresponding to both ends of the heat pipe group. Reinforcing plates connecting both covering members are respectively attached, and a bent edge is provided at the lower edge of the upper support plate among the upper and lower support plates that support both ends of the heat pipes of the upper and lower heat pipe groups,
The upper support plate is placed so as to close the opening of the upper covering member, and the bent edges thereof are respectively engaged with the upper surface of the lower wall of the upper covering member, and the bent edges are attached to the upper edge of the lower support plate. is provided, the lower support plate is placed so as to close the opening of the lower covering member, the bent edges thereof are respectively engaged with the lower surface of the upper side wall of the lower covering member, and the upper edge of the upper supporting member is attached to the upper frame member of the left and right frames, and the lower edge of the lower support member is attached to the lower frame member of the left and right frames.
The subject matter is an end support device for heat pipes in a heat exchanger, each of which is connected by a connecting means.

Embodiment Next, an embodiment of this invention will be described based on the drawings.

In this specification, left and right and top and bottom refer to the second
Based on the drawings, left means the left side in the same figure, right means the right side in the same figure, upper means the upper side in the same figure, and lower means the lower side in the same figure.

In FIGS. 1 and 2, reference numeral 1 denotes a heat exchanger, which has a high-temperature gas flow path and a low-temperature gas flow path that are separated from each other via an intermediate partition wall (not shown).
Numeral heat pipes 2 penetrate the partition wall and are arranged horizontally across both flow paths. Each heat pipe 2 is provided with a heat pipe made of wool, felt, porous sintered material, multilayer wire mesh, etc. inside a sealed aluminum pipe-shaped container along the inner peripheral wall of the container, and water, methanol, etc. A working fluid consisting of , acetone, ammonia, Freon, heat transfer oil, etc. is enclosed.
3 is a radial fin provided on the outer surface of the container of the heat pipe 2.

Reference numerals 4 and 5 denote left and right frames that are rectangular when viewed from the side and are arranged facing each other with an interval corresponding to the length of the heat pipe 2. Between these frames 4 and 5, there is a predetermined interval for installing a blowing device. Two upper and lower heat pipe groups P1 and P2 are arranged with 6 spaces apart. In each heat pipe group P1, P2, the heat pipes 2 are arranged in three rows in a staggered arrangement when viewed from the side. Reference numerals 7 and 8 denote a pair of left and right, upper and lower aluminum sheathing members having a substantially U-shaped cross section, which are attached to both the left and right frames 4 and 5, and these are installed at positions corresponding to both ends of the heat pipe groups P1 and P2, respectively. They are arranged facing each other with their openings facing the heat pipe groups P1 and P2. Reference numerals 9 and 10 denote a pair of left and right aluminum support plates and a pair of upper and lower aluminum support plates attached to each of the covering members 7 and 8 so as to close the openings thereof, and these have a large number of through holes through which the ends of the heat pipes 2 are inserted. 11
are drilled at predetermined locations by burring. Bent edges 12, 12 are provided at the lower edges of the upper support plates 9, 9 on both the left and right sides, and these are engaged with the upper surfaces of the lower walls 7a, 7a of the upper covering members 7, 7, respectively. lower support plate 1
0, 10 are provided with bent edges 13, 13, which form the upper wall 8 of the lower covering member 8, 8.
It is engaged with the lower surfaces of a and 8a. Both ends of the heat pipes 2 of each heat pipe group P1, P2 are supported by these support plates 9, 9, 10, 10 in a penetrating manner. 14 is both left and right frames 4 and 5
A pair of left and right aluminum reinforcing plates are attached to the upper and lower covering members 7 and 8 and connect the upper and lower covering members 7 and 8 to each other. 15 and 16 fix the upper edges of the upper support plates 9 and 9 and the lower edges of the lower support plates 10 and 10 to the upper frame members 4a and 5a and the lower frame members 4b and 5b of both the left and right frames 4 and 5, respectively. Bolts and nuts.

In the above embodiment, the fins 3 are attached to the outer surface of the container of the heat pipe 2 by welding, but such fins 3 can be integrally attached to the outer surface of the container of the heat pipe 2 by rolling. It's okay to be hit. The material of the members constituting the heat exchanger 1 is not limited to those of the above embodiments, and may be stainless steel or other metals.

Effects of the Invention As described above, the invention provides a heat exchanger having left and right frames 4, 5 arranged opposite each other with a distance corresponding to the length of the heat pipe 2, and heat pipe groups P1, P2 arranged in two tiers between the frames 4, 5 with a predetermined distance 6 between them. In the heat exchanger, the left and right frames 4, 5 are provided with covering members 7, 8 having a substantially U-shaped cross section, which cover the heat pipe groups P1, P2.
The upper and lower covering members 7, 8 are attached to the left and right frames 4, 5 in pairs facing each other with their openings facing the heat pipe groups P1, P2 at positions corresponding to both ends of the upper and lower heat pipe groups P1, P2, and reinforcing plates 14 are attached to the left and right frames 4, 5 to connect the upper and lower covering members 7, 8 to each other. Of the upper and lower support plates 9, 9, 10, 10 supporting both ends of the heat pipes 2 of the upper and lower heat pipe groups P1, P2, the upper support plates 9, 9 are provided with bent edge portions 12,
12 are provided, the upper support plates 9, 9 are placed over the upper covering members 7, 7 so as to close the openings thereof, and their folded edges 12, 12 are engaged with the upper surfaces of the lower walls 7a, 7a of the upper covering members 7, 7, respectively, and folded edges 13, 13 are provided on the upper edges of the lower support plates 10, 10, the lower support plates 10, 10 are placed over the lower covering members 8, 8 so as to close the openings thereof, and their folded edges 13, 13 are engaged with the lower surfaces of the upper walls 8a, 8a of the lower covering members 8, 8, respectively. The upper support members 9, 9 are engaged with the upper frame members 4a, 5a of the left and right frames 4, 5, and the lower support members 10, 10 are engaged with the lower frame members 4b, 5b of the left and right frames 4, 5, by connecting means 15, 16, respectively. Both ends of the multiple heat pipes 2 are attached to the support plates 9, 9, 10, 10 divided into upper and lower parts. The bent edge portions 1 of the upper support plates 9, 9 are placed over the upper covering members 7, 7 so as to close the openings of the upper covering members 7, 7.
The upper covering members 7, 7 have their upper surfaces engaged with the lower walls 7a, 7a of the upper covering members 7, 7, and the folded edges 13, 13 of the lower support plates 10, 10 which are placed to cover the openings of the lower covering members 8, 8 are engaged with the lower surfaces of the upper walls 8a, 8a of the lower covering members 8, 8, respectively.
The upper edge of the upper frame member 4 of the left and right frames 4 and 5
a, 5a, and the lower edge of the lower support member 10, 10 is connected to the lower frame members 4b, 5b of the left and right frames 4, 5.
2, the heat pipes 2 are connected to the left and right frames 4, 5 from the outside of the heat exchanger 1 by means of bolts 15 and nuts 16, so that the work of attaching a large number of heat pipes 2 to the left and right frames 4, 5 is very simple.
The heat exchanger 1 is easy to manufacture. In addition, since the folded edges 12, 13 of the upper and lower support plates 9, 10 are engaged with the lower wall 7a and the upper wall 8a of the upper and lower covering members 7, 8, respectively, and the both side walls 7a, 8a of the upper and lower covering members 7, 8 are connected to each other by the reinforcing plate 14, the heat exchanger 1 has a very high strength. Furthermore, since the support plates 9, 10 are divided into two, upper and lower, and there is no support plate in the portion corresponding to the blower installation gap 6, less material is used, the heat exchanger 1 is lightweight, and the material cost is low. Moreover, the labor required for making an opening in a single support plate as in the conventional method can be omitted, so that the heat exchanger 1 can be manufactured easily and inexpensively.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a heat exchanger showing an embodiment of this invention, Fig. 2 is a sectional view taken along the line shown in Fig. 1, and Fig. 3 is a partially cutaway side view of a heat exchanger showing a conventional example. The side view, FIG. 4, is a sectional view taken along the line of FIG. 3. 1...Heat exchanger, 2...Heat pipe, 3...
Fin, 4, 5... Frame, 6... Gap for installing blow device, 7, 8... Covering member, 7a, 8a
... Side wall, 9, 10 ... Heat pipe end support plate, 12, 13 ... Bent edge, 14 ... Reinforcement plate,
15, 16... Bolts and nuts (coupling means),
P1, P2... Heat pipe group.

Claims (1)

[Scope of utility model registration request] Both left and right frames 4 and 5 are arranged facing each other with an interval corresponding to the length of the heat pipe 2;
Heat pipe groups P1 and P are arranged in upper and lower two stages with a predetermined distance of 6 between both frames 4 and 5.
In a heat exchanger equipped with 2, covering members 7 and 8 having a substantially U-shaped cross section are provided on both the left and right frames 4 and 5, and openings are formed in the heat pipe groups at positions corresponding to both ends of the heat pipe groups P1 and P2, respectively. P1, P2
The upper and lower heat pipes of the upper and lower heat pipe groups P1 and P2 are attached to the left and right frames 4 and 5, respectively, with reinforcing plates 14 that connect the upper and lower covering members 7 and 8 to each other. upper and lower support plates 9 that support both ends of 2;
Among the upper supporting plates 9, 10, 10, bent edges 12, 12 are provided at the lower edges of the upper supporting plates 9, 9, and the upper supporting plates 9, 9 are covered so as to close the openings of the upper covering members 7, 7. so that the bent edges 12, 12 are the lower walls 7a, 7a of the upper covering members 7, 7, respectively.
The lower support plates 10, 10 are engaged with the upper surface of the
Bent edges 13, 13 are provided on the upper edges, and the lower support plates 10, 10 are placed over the lower covering members 8, 8 so as to close the openings thereof.
3 and 13 are engaged with the lower surfaces of the upper walls 8a and 8a of the lower covering members 8 and 8, respectively, and the upper edges of the upper support members 9 and 9 are connected to the upper frame members 4a and 5a of the left and right frames 4 and 5, respectively. The lower edges of the lower support members 10, 10 are the lower frame members 4b, 5 of the left and right frames 4, 5.
b, an end support device for a heat pipe in a heat exchanger, which is coupled by coupling means 15, 16, respectively;