JPS5933831B2 - heat exchange equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat exchange device having a support structure for heat transfer tube coils, and in particular to an improved heat exchange device for supporting a suspended heat transfer tube coil installed inside a flue, a furnace, etc. The present invention relates to a heat exchange device having a support structure for heat exchanger tube coils, which has a new and simple structure.

Heat exchanger tube coils installed in steam superheater flues or furnaces are exposed to extremely high temperature environmental conditions.
It was easy to cause damage, and the structure tended to be complicated, requiring a room called a pendant house above the flue to support the heat exchanger tube coil via hanging bolts.

FIGS. 1A, 1B, and 1C are explanatory diagrams showing a heat exchange device having a support structure for heat exchanger tube coils, which has a structure according to the prior art.

FIG. 1A is a detailed view of part A in FIG. 1a, and FIG. 1C is a detailed view of the mouth part in FIG. 1a.

To further explain the prior art in FIGS. 1a, b, and c, first, in FIG. 1a, the heat exchanger tube coil 1 is
The structure is such that the pendant house 3 is suspended from the flue 2 through which the heat flow flows, but the pendant house 3 also serves as a storage area for the members that suspend the heat exchanger tube coil 1, and is relatively large in size. The structure of the suspended means to be accommodated is also complex.

That is, a hanging bolt 4 is provided inside the pendant house 3, and the hanging bolt 4 directly supports the heat exchanger tube coil 1.

In FIGS. 1 and 1C, the heat exchanger tube 5 of the heat exchanger tube coil 1
A spacer 10 is provided to support the intermediate point of the load, and a U spacer 11 is provided to prevent the heat exchanger tube 5 from swaying.

In the above, the heat exchanger tube coil 1 is supported within the pendant house 3 by suspending the entrance/exit header 8 and the bend portion 9 of the heat exchanger tube coil 1 with the hanging bolt 4,
Further, the load at the midpoint of the heat exchanger tube coil 1 is supported via the spacer 10.

In a heat exchange device having such a hanging structure, the part where the hanging bolt 4 is connected to the entrance/exit header 8 and the part where the hanging bolt 4 is connected to the bend part 9 are complicated, and furthermore, the part where the hanging bolt 4 and the heat insulating material 6 are connected are complicated. The structure of the penetrating portion 7 and the suspension bolt 4 itself cannot be avoided, and since these parts are exposed to high temperature conditions, various problems tend to occur.

Furthermore, as mentioned above, the U spacer 11 and the spacer 10 exhibited the same effect as the fins, and problems such as damage and burnout of the heat transfer tubes occurred due to the fact that these parts were easily subject to localized overheating. As already explained.

Furthermore, the structure of the prior art as described above has a complicated structure and therefore has many problems in terms of economic efficiency, such as excessive manufacturing and assembly costs.

The present invention aims to solve the problems of the prior art described in detail above, and effectively suppresses damage and other occurrences due to local overheating of the support structure of heat exchanger tubes, and also improves the structure. It is an object of the present invention to provide a heat exchange device having a support structure for a heat exchanger tube coil, which is simple and has a new and improved structure that is free from problems in terms of economic efficiency.

A heat exchange device having a support structure for a heat exchanger tube coil according to the present invention includes a box having a space projecting above a flue and communicating with the flue, and a box placed above an inlet/outlet header of a heat exchanger tube coil, A support member that bridges between the headers;
a header support that supports the inlet/outlet header and is supported and fixed to the constituent member of the flue; a heat exchanger tube support that connects the heat exchanger tube coil and the support member and suspends the heat exchanger tube coil from the support member; and the cross section of the inlet/outlet header is formed into a substantially circular shape, and at least the inlet/outlet header and the support member are arranged so as to be housed in the box, and the heat exchanger tube coil in the flue is The main idea is to provide means for preventing short circuits of the gas in the vicinity and on the upstream side of the gas flowing in the flue.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A heat exchange device having a support structure for heat exchanger tube coils according to the present invention will be described in more detail below with reference to the accompanying drawings.

In addition, in the following drawings, the same reference numerals as in the description of FIGS.
It shows the part.

FIGS. 2a and 2b are explanatory diagrams showing a heat exchange device having a support structure for heat exchanger tube coils according to the present invention.

FIG. 2a is an explanatory diagram of a heat exchanger having a support structure for heat exchanger tube coils according to the present invention, and FIG.

In FIGS. 2a and 2b, the heat exchanger tube coil 1 is supported in a suspended state within the flue 2, but the inlet/outlet header 8 of the heat exchanger tube coil 1 has a plurality of substantially circular cross sections, and A plurality of support members such as support rods 13 are mounted, and the support rods 13 are connected to each other in a bridging manner.

Further, a lower partition plate 16 is provided at the lower part of the heat exchanger tube coil 1, and a guide provided at the lower part of the heat exchanger tube coil 1, that is, the lower part of the heat exchanger tube 5, is inserted into the hole formed in the lower partition plate 16. The pins 1T are inserted into the pins 1T and are movably fitted to each other.

By adopting such a configuration, the heat exchanger tube coil 1 can not only be quickly and reliably set in a fixed position, but also have a stable position, and can also function as a steady rest.

Also, near the heat exchanger tube coil 1 and inside the flue 2, arrow A
, A' As shown in the figure, a means 18 for preventing a short circuit of the gas is provided on the upstream side of the gas (heat flow) flowing in the force direction.

By providing this short-circuit prevention means 18, it is possible to prevent the gas from flowing in the direction of arrow B avoiding the heat exchanger tube coil 1 in a short-circuit manner.

The entrance/exit header 8 is supported by a header support 15 provided at its lower part.
5 is supported and fixed to a part of the inner wall of the box 12 constituting the flue 2.

The box 12 is provided to protrude above the flue 2, and has the same function as the pendant house 3 of the prior art, but is unique in that it communicates with the flue 2.

The box 12 is configured to accommodate the entrance header 8 and the support rod 13.

That is, a header support 15 fixed to a part of the inner wall of the box 12 constituting the flue 2, an entrance/exit header 8 provided on the header support 15, and a support rod 13 connected to bridge the entrance/exit header 8. The heat exchanger tube coil 1 is suspended and supported via the heat exchanger tube support 14 and the entrance/exit header 8.

A plurality of heat exchanger tube supports 14 are provided as necessary and connected to the support rod 13. These heat exchanger tube supports 14 and support rods 13 are fixed and connected to each other, and the header support 15 is connected to the box 12. Since the heat exchanger tube coil 1 is fixed to a part of the inner wall of the flue 2, the heat exchanger tube coil 1 is eventually suspended within the flue 2.

The flue 2 has a structure in which heat flows according to the arrows A and A', and the heat exchanger tube coil 1 is suspended therein.
This is the configuration that will be deployed.

Figure 2 shows in detail the relationship between the entrance header 8, the support rod 13, the header support 15, and some members of the inner wall of the box 12, and is a partial sectional view seen from the left side of Figure 2a. This shows the state of the header support 15 that is fixed to and protrudes from a part of the inner wall of the box 12, the entrance/exit header 8, and the support rod 13 that bridges the entrance/exit header 8.

In the above, it has already been explained that the header support 15 supports the entrance header 8 and the support rod 13, but the box 12 supports the entrance header 8.
and the header support 15, and the box 12 for storing these members protrudes from the upper part of the flue 2 and is installed in communication with the flue 2, so that gas etc. due to each of these members is removed. It suppresses turbulence in the heat flow and prevents direct heating by the heat flow, and the heat exchanger tube coil 1, the inlet/outlet header 8, and the support rod 13
Since the flow rate difference between the heat exchanger tube support 14 and the flue 2 can be reduced, a means for absorbing the expansion and contraction of these members is not required, and there is no penetration of the wall of the flue 2 by the heat exchanger tube support 14, etc., so gas leakage can be prevented. It has the great advantage of not requiring any means.

As partially explained above, the weight of the heat exchanger tube coil 1 is supported via the heat exchanger tube support 14 connected to the bend portion 9 of the heat exchanger tube coil 1. The support rod 1 is supported and suspended by a plurality of support rods 13 connected to the
As described above, reference numeral 3 has a two-point support beam structure with the entrance header 8 as a fulcrum, and the end of the entrance header 8 is supported by a header support 15.

Preventing the heat exchanger tube 5 from expanding and contracting due to heat and preventing it from shaking due to steady resting is also an important element of the support structure of the heat exchanger tube coil.
7 is inserted and fitted with the lower partition plate 16, the heat exchanger tube 5 functions as a steady rest, and the guide pin 1
7 also serves as a guide against expansion and contraction of the heat exchanger tube 5 due to heat.

In other words, there is no need for spacers or U-spacers, etc., which were required in the support structure of the heat exchanger tube coil in the conventional technology, and the spacers, U-spacers, etc. do not require complicated expansion and contraction during heating and cooling of the heat exchanger tube coil. This means that problems such as negative impacts will be automatically resolved.

As explained in detail above, the support structure for a heat exchanger tube coil according to the present invention includes a box having a space that projects above the flue and communicates with the flue, and a box placed above the entrance/exit header of the heat exchanger tube coil. , and a support member that bridges the inlet/outlet headers, a header support that supports the inlet/outlet header and is supported and fixed to the constituent member of the flue, and the heat transfer tube coil and the support member, a heat exchanger tube support for suspending a heat tube coil on the support member, and the entrance/exit header has a substantially circular cross section;
At least the entrance header and the support member are arranged so as to be housed in the box.

Therefore, there is no need for a large pendant house, a complicated hanging structure, or a hanging member as in the prior art, and great effects can be obtained in terms of structural simplification and economy.

Furthermore, since the inlet/outlet header and supporting member are housed in a box that communicates with the flue, the temperature difference between the heat exchanger tube coil and the inlet/outlet header and supporting member can be reduced, and there is a means for absorbing expansion and contraction of these members. Since there is no need for gas leak prevention means and there is no penetration through the wall of the flue, we can expect remarkable effects in terms of stability, as well as simplifying and simplifying the structure. Become.

Furthermore, by providing a gas short-circuit prevention means in the vicinity of the heat exchanger tube coil in the flue and on the upstream side of the gas flowing in the flue, it is possible to prevent the gas from flowing in a short circuit avoiding the heat exchanger tube coil. It can be prevented.

[Brief explanation of the drawing]

Figure 1a is an explanatory diagram of a heat exchanger having a support structure for heat exchanger tube coils according to the prior art. Figure 2a is an explanatory diagram showing a heat exchanger having a support structure for heat exchanger tube coils according to the present invention. It is a partial sectional view seen from the side. 1... Heat exchanger tube coil, 3... Flue, 3
... Pendant house, 4 ... Hanging bolt, 5 ... Heat exchanger tube, 6 ... Insulation material,
7... Penetration part, 8... Entrance/exit header,
9...Bend part, 10...Spacer,
11... U spacer, 12... Box, 13... Support rod, 14... Heat exchanger tube support, 15... Header support, 16...
...Lower partition plate, 17...Guide pin, 1
8... Gas short circuit prevention means.

Claims (1)

[Scope of Claims] 1. A heat exchange device having a heat exchanger tube coil support structure that supports a suspended heat exchanger tube coil in a flue, comprising: a box having a space projecting above the flue and communicating with the flue; , placed on the top of the inlet/outlet header of the heat exchanger tube coil,
and a support member that bridges between the inlet/outlet headers, a header support that supports the inlet/outlet header and is supported and fixed to the constituent member of the flue, and the heat exchanger tube coil and the support member, and the heat exchanger tube a heat exchanger tube support for suspending a coil on the support member, the inlet/outlet header has a substantially circular cross section, and at least the inlet/outlet header and the support member are arranged so as to be housed in the box. A heat exchange device characterized by: 2. In a heat exchange device having a support structure for a heat exchanger tube coil that supports a suspended type heat exchanger tube coil in a flue, a box having a space projecting above the flue and communicating with the flue, Placed on top of the entrance/exit header,
and a support member that bridges between the inlet/outlet headers, a header support that supports the inlet/outlet header and is supported and fixed to the constituent member of the flue, and the heat exchanger tube coil and the support member, and the heat exchanger tube a heat exchanger tube support for suspending a coil on the support member, the inlet/outlet header has a substantially circular cross section, and at least the inlet/outlet header and the support member are arranged so as to be housed in the box. . A heat exchange device further comprising means for preventing a short circuit of the gas flowing in the flue in the vicinity of the heat exchanger tube coil and upstream of the gas flowing in the flue.