JPS5852902A - Boiler supporter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a boiler support device for transporting purge.

A boiler with a modular design such as a self-supporting small package is completely assembled at the factory and transported to the site after purging, etc. However, as shown in Figure 1, the boiler l is suspended from a supporting steel beam 3 by a hanging rod 2. In the case of hanging boilers, they are assembled on-site, and there are no examples of factory assembly and purge transportation. This is because if the finished product is assembled in a factory, the boiler structure cannot withstand the stress generated during transportation by sea or land.

In addition, in the case of a method in which the boiler on the purge is installed on the seabed using the purge itself as a base without unloading, the boiler can be installed on the bottom of the ship instead of on the purge deck (in other words, the stress generated by the ship's rocking can be reduced). This is possible, and reinforcing the boiler is easy.However, there are rare cases where the boiler unit is located at the same location as the purge unit on the shore.
Normally, it is transported overland from the factory and loaded onto a purge, then transported by sea, unloaded, and transported overland to the installation site.

If the hanging boiler is assembled in a factory using the module construction method,
If a design that can withstand land and sea transportation is technically possible, it is clear from the track record of self-supporting models that there are the following advantages.
2) shortened delivery times; and (3) reduced total costs. The benefits will be doubled, especially in tropical and extremely cold regions with harsh location conditions.

A hanging boiler is roughly rectangular and has a very rigid shape, so if the weak points are sufficiently reinforced, the design can withstand the stress generated by purge movement. It is possible.

However, when the boiler 21' is supported on a supporting steel frame body and transported by the purge 10 as shown in FIG. The strain pattern during purge transportation at sea is expected to be similar to that shown in Figure 2 (bl), which is completely different from that in the boiler.

In this case, the boiler must be able to withstand the strain load on the supporting steel frame, but the boiler cannot withstand such a load, so the supporting steel frame must be moved at a level equal to the strain value of the boiler. Reinforcing the steel structure would result in unreasonably maximizing the steel structure or stringing together countless reinforcement beams, which would be impractical for the entire structure.

The present invention solves the above-mentioned problems and provides a practical method for reinforcing a boiler and supporting steel frame.

The basic concept is shown in FIGS. 3(a) to (C1).

That is, FIG. 3 (al, (bl, (cl) is a side view of the boiler support device, a cross-sectional view taken from the line E-E in (a), and an enlarged partial cross-sectional view of the F section in (al), respectively. is supported on the support steel beam 3 by hanging rods 2 and nuts 7, and the boiler can be prevented from being photographed at two levels, Ll and B2 above and below the support steel structure, against the ship's rocking due to the purging 10 on the front and rear and left and right sides of the boiler. , horizontal loads due to swings in the longitudinal direction of the boiler are supported by the supporting steel frame via stoppers 6 at B and D, and horizontal loads in the horizontal direction of the boiler are supported by stoppers 6 at A and C. In other words, as shown in FIG. 3(b), the stoppers 6 are formed facing each other at a short distance, and a member 5 called a support point is placed between them.
Sandwich them with some gap left.

Since the stopper 6 is fixed to the steel frame body and the support point 5 is fixed to the reinforcing material 4 of the boiler 1, the rolling of the boiler 1 is caused by A, B,
The four supporting points 5 shown in C and D hit the left and right stoppers 6, thereby suppressing the movement.

With this type of support system, even if the strain characteristics of the boiler l and the supporting steel beam 3 are different, as shown in the shape and form shown in Fig. 2 tb+, the gap between the boiler and the supporting steel beam at the upper and lower Ll and B2 positions is maintained. Since the difference in strain between is small, the boiler will not be subjected to unreasonable deformation force (
, it becomes a mechanism that can respond to the ship's rocking in any direction.

It is assumed that the boiler 1 is suspended from the beam 3 by the hanging rods 2 and nuts 7 as shown in FIG.

In the above-mentioned supporting corporation, the horizontal load on the boiler caused by the rocking of the ship in purge 1o is applied to two places, the top and bottom.
Since the load will be concentrated at the support point 5 of the boiler in the boiler, it is desirable to have a structure that sufficiently reinforces this part and distributes the load. As shown, it is easy and effective to reinforce using pack stays.

In other words, Fig. 4(a) shows the arrangement 1 of Pacti on the furnace wall.
A side view of the point support device showing t, FIG. 4(b) is a Y-side view thereof, and FIG. 4(C) is a III! of the boiler support device. 1
The plan view and the first drawing rule are the plan views.

In FIG. 4(C), the vertical load on the boiler l is applied via the hanging rod 2 [suspended from the supporting steel beam 3].

The horizontal load due to the ship's rocking during purge transportation is caused by the pack-steel B5-1 and B5-2 of boiler 1, and B5-5 and B5-
6 are reinforced with reinforcing materials 4, so that the load flow of the horizontal force is concentrated at the support point 5, and the load is deferred by the supporting steel frame via the stopper 6.

Figure 5 (
A) to (C) respectively show a side sectional view, a side view, and a furnace corner view of a normal furnace wall.

In Figures 5 (1) to (C), the tension plate 12 and stay lug 13 are attached to the furnace evaporation tube 1 by bath contact, and the pack stay 14 is attached to the bolts and nuts. It is installed in the furnace and plays a strong role in controlling the wind pressure inside the furnace during operation. In addition, since thermal expansion occurs in the furnace wall during boiler operation, the part with the void/narrow L-IN of the Paksty is designed to be able to slide, and the corner part of the furnace wall is fitted with a strong U-bolt 15 to ensure flexibility. I have it. However, in the case of purge transportation using the module construction method, the strength of the first joint of the people is insufficient with the above-mentioned configuration alone.

In contrast to this j+, Figures 6 (3I) to (c) show the furnace walls and furnace corners (11 views and It is a plan view, and the stay lugs 13 are reinforced by increasing the number of them than in the normal case, and the evaporation tube 11 and the tension plate 1.
12, the number of welding points may be increased as necessary.

In this case, the size of the pack stay 14 is selected 17 to meet the required strength, and the fixing metal fittings 16 are attached to the corners of the furnace wall by welding. This fixing hardware 16 is removed before the unit is completely installed on site and put into operation.

[Brief explanation of drawings]

Figure 1 is a side view showing the structure of a suspended boiler plant;
Figure 81!2 (a) is a side view of the boiler support device during purge transportation of a hoisted boiler, kUJ2 figure (L and J are the state in which the supporting steel frame of the support device in Figure 2 (a) has been subjected to horizontal shaking. 3(a) is a side view of the boiler support device according to the present invention, FIG. 3(b) is a plan view taken from the E-E line of FIG. 3(al), and FIG. 3(C) Figure 3 (a) is a side cross-sectional view showing details of the F section of the present invention, Figure 4 (a) is a side view of the boiler support device according to the present invention in which the furnace wall can be inspected for pack stay; (1) is the plan view of Fig. 4(a),
Figure (C) is a side view of the support device in Figure 4 (a), Figure 4 (
(1) is a plan view of Fig. 4(c), Fig. 5(al) is a cross-sectional view of a normal furnace wall with a Pax-dee, Fig. 5.
BL is Figure 5 (N-5' of al, a plan view from the gland view,
Figure 5(C) is a plan view of the furnace corner, Figure 6fa) is a side sectional view of the furnace wall equipped with a reinforced puck stay for purge transportation, and Figure 6(b) is the (a) B-B
FIG. 6(c) is a plan view of the furnace corner as seen from the line. 1. Boiler, 2. Hanging rod, 3. Supporting steel beam, 4.
Reinforcement material, 5. Support point, 6. Stopper, 7. Nut, 10. Purge, II. Furnace evaporation tube, 12. Tension plate, 13. Stay rap, 14. Pack stay, 15.・U bolt, 16...Fixing metal fittings. ¥! , Figure 3, Figure 4 (α), Figure 6 (C)

Claims (1)

[Claims] In the boiler support device for purging and transporting the suspended boiler after factory assembly using the modular construction method, stoppers that receive the horizontal load of the boiler are placed only at the upper and lower two positions of the boiler support steel frame at 11111 parts on all four sides to medium heat. A boiler support device characterized in that a support point reinforced by a reinforcing material is provided at a position corresponding to the stopper of the boiler.