JPS6259396A - Support structure of vertically set heat exchanger - Google Patents

Abstract

PURPOSE:To remove restrictions to the horizontal thermal expansion displacement of a shell and relax the heat stress generated at the shell supporting part of skirts by such a construction that the shell is divided from the skirts, an empty weight lip provided on the outer peripheral surface of the middle height portion of the shell is placed on the flange on the inner peripheral side at the lower end of the skirts. CONSTITUTION:Swing-stops 9 are integrally provided equi-angularly in the peripheral direction on the lower surface of a own weight lip 8 provided integrally on the outer peripheral surface of the middle height portion of the shell 2, and a flange 4 provided at the upper end of the skirts 3 is fixed to a floor 5 and suspended therefrom. In the peripheral direction of an engagement receiving plate 12 provided on the inner peripheral side on the lower end of the skirts, recesses 13 are cut away equi-angular-distantly. On the upper surface of the engagement receiving plate 12 fitted with a spacer 14, the own weight lip 8 is placed and engaged to suspend the heat exchanger 1 and the whirl stop 9 on the lower surface of the own weight lip 8 is fitted into a recess 13 of the engagement receiving plate 12 and is brought into contact with a spacer 15 mounted on the right and left inner side surfaces of the recess 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a support structure for a vertical heat exchanger in an atomic couplant.

[Conventional technology]

A conventional vertical heat exchanger 1 shown in FIG. 5 has a skirt 3 integrally formed on the outer periphery of a middle and high part of a shell 2 with its lower end connected, and a flange 4 at the upper end of the skirt 3 connected to the floor.
5, and the lower outer periphery of the shell 2 is restrained by a damper 6.

[Problem that the invention seeks to solve]

By the way, in the support structure of the vertical heat exchanger 1, since the skirt 3 is integrated with the shell 2, the connection 887 thereof is thick. For this reason, the thermal expansion displacement of the shell 2 in the horizontal direction is restricted, and since heat transfer to the skirt 3 side is poor, there is a problem in that a large thermal stress is generated in the connecting portion 7.

Therefore, the present invention aims to provide a support structure for a vertical heat exchanger that does not restrict horizontal thermal expansion displacement of the shell and can alleviate thermal stress in the shell support portion of the skirt. .

[Means for solving problems]

In order to solve the above-mentioned problems, the support structure for a vertical heat exchanger according to the present invention divides the skirt integrally connected to the middle and high parts of the shell of the vertical heat exchanger, and attaches the skirt to the outer peripheral surface of the middle and high parts of the shell. A dead weight lip is integrally provided, and a plurality of detents are integrally provided at equal angular intervals in the circumferential direction of the lower surface of the dead weight lip, the upper end of the skirt is fixed to a fixed body, and a locking plate is formed on the inner circumferential side of the lower end. At the same time, recesses are formed at equal angular intervals in the circumferential direction of the locking receiving plate, and spacers are attached to the upper surface of the locking receiving plate and the inner surface of the recess, respectively, so that the self-weight lip is inserted into the upper surface of the locking receiving plate. The heat exchanger is suspended by the heat exchanger, and a detent on the lower surface of the self-weight lip is fitted into the recess of the locking plate.

[For production]

The uninvented support structure for a vertical heat exchanger with such a configuration separates the shell and skirt, and places a self-weight lip provided on the outer circumferential surface of the mid-high portion of the shell on the flange on the inner circumferential side of the lower end of the skirt. The thermal expansion displacement in the horizontal direction (radial direction) of the shell is not restricted, and the skirt and self-weight lip are separated and can thermally expand independently.
Thermal stress generated in the shell support portion of the skirt is alleviated.

〔Example〕

An embodiment of the support structure for a vertical heat exchanger according to the present invention will be explained with reference to FIGS. 1 to 4.
The mid-high part of the shell 2 and the skirt 3 are separated, and a self-weight knob 8 is integrally provided on the outer peripheral surface of the mid-high part of the shell 2, and a third.
As shown in FIG. 4, detents 9 are integrally provided at equal angular intervals, in this example at 45 degree intervals. A seven flange 4 is provided at the upper end of the skirt 3 as shown in the first flange 4, and this flange 4 is fixed to a fixed body, in this example a floor 5, so that the skirt 3 is suspended. A locking plate 12 is provided on the inner peripheral side of the lower end of the skirt 3.
2, recesses 13 are formed at equal angular intervals, in this example, at 45 degree intervals in the circumferential direction. On the upper surface of this locking receiving plate 12 and on both left and right inner surfaces of the recess 13, fourth
As shown in the figure, spacers 14 and 15 each made of a material such as ceramics are removably attached, and a self-weight lip 8 is attached to the upper surface of the locking plate 12 to which the spacers 14 are attached.
is locked in position i to suspend the heat exchanger l, and the locking plate 12 is
The detent 9 on the lower surface of the self-weight lip 8 is fitted into the recess 13 of the spacer 15 attached to both left and right inner surfaces of the recess 13.
It should be in contact with the In addition, there is a sulin for absorbing thermal expansion between the rotation stoppers 9 in the circumferential direction of the dead weight lip 8)
16 are provided. Further, the lower outer periphery of the shell 2 is restrained by a damper 6 as in the conventional case.

In the vertical heat exchanger support structure of the embodiment configured as described above, when the heat exchanger l is operated, the shell 2 is separated from the skirt 3, so the shell 2 is not restrained by the skirt 3. While supported by the skirt 3, it expands by fj% in the vertical direction. Also, the locking plate 1 at the lower end of the skirt 3
The self-weight lip 8 on the outer periphery of the middle and high part of the shell 2 is cut off by the spacer 14 on the top of the shell 2, so that the shell 2 can be moved in the horizontal direction (
radial direction) and thermally expand. Therefore, the thermal expansion displacement of the shell 2 during operation is not restricted in any way,
No load is applied to the skirt 3 due to the thermal expansion displacement of the shell 2. Furthermore, the rotational displacement of the shell 2 causes a thrust force to be applied to the recess 13 of the locking plate 12 at the lower end of the skirt 3. The detent 9 is inserted and restrained, and at this time, the spacer 15 is attached to the left and right inner surfaces of the recess 13, so that the detent 9 does not adhere due to contact.

However, since the lower end of the skirt 2 and the self-weight knob 8 are separated, they thermally expand without being restrained independently, so that no large thermal stress is generated in the shell support portion of the skirt 2, and the generated heat is Stress can be alleviated.

[Voice 1! Effects of J] As detailed above, the support structure of the vertical heat exchanger of the present invention does not restrict thermal expansion displacement of the shell in the vertical and horizontal directions, and also prevents condensation in contact with the shell support portion at the lower end of the skirt. In addition, the shell support part of the skirt can be used to start, stop, and shut down the heat exchanger. Even if there is a large difference in temperature followability due to one event, thermal expansion occurs independently, so the temperature gradient with the shell is small and the generated thermal stress is extremely small.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an embodiment of the support structure for a vertical heat exchanger of the present invention, FIG. 2 is an enlarged sectional view taken along line A-A in FIG. Figure 3 is an enlarged sectional view taken along line B-B of Figure 1 showing the self-weight lip of the outer periphery of the mid-height portion of the shell in the support structure of the present invention, Figure 4 is an enlarged view of the first section C, and Figure 5 is a conventional vertically placed heat sink. FIG. 3 is a longitudinal sectional view showing the support structure of the exchanger. 1--Heat exchanger with one device, 2-m-shell, 3-m-skirt, 8-m-weight tube, 9-all + h, 1
2-m-locking receiving plate, 13-m-recess, 14.15-m-
Spacer.

Claims (1)

[Claims] The skirt, which is integrally connected to the middle and high parts of the shell of the vertically placed heat exchanger, is divided, and a self-weight lip is integrally provided on the outer peripheral surface of the middle and high part of the shell, and detents are provided at equal angular intervals in the circumferential direction of the lower surface of the dead weight lip. A plurality of sides are integrally provided, the upper end of the skirt is fixed to a fixed body, a locking receiving plate is formed on the inner peripheral side of the lower end thereof, and recesses are formed at equal angular intervals in the circumferential direction of the locking receiving plate, Spacers are attached to the upper surface of the locking plate and to the inner surfaces of both the recesses, and the heat exchanger is suspended on the upper surface of the locking plate via the self-weight lip, and the area around the lower surface of the self-weight lip is placed in the recess of the locking plate. A support structure for a vertical heat exchanger characterized by an inset stop.