SU1590834A1

SU1590834A1 - Fastening system for boiler housing components

Info

Publication number: SU1590834A1
Application number: SU874304940A
Authority: SU
Inventors: Evgenij A Gatitskij
Original assignee: Proizv Ob Krasnyj Kotelshchik
Priority date: 1987-09-07
Filing date: 1987-09-07
Publication date: 1990-09-07

Description

The invention relates to the boiler and allows you to increase the reliability of fastening. The frame of the system is made in the form of horizontal and vertical power beams respectively. 2 and 3. At the level of the beams 2 are located the horizontal position fixators fixed on the tubular screens 4 in constant values, passing through the center of mass of the boiler to the vertical plane (VP) points 5 and interacting with the beams 3. The fixators are made in the form of a pair of rods 8 and 9, connected by one ends with a screen 4 on opposite sides of the VP, and the other - with the ends of the rotary traverse (T)

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6. TB in the middle part have a support post 7 with a hinge, mounted on the beam 3, and the length of each arm T is proportional to the distance from the VP to the fixing point acc. rod on the screen. Balki 2 are belt stiffness. This embodiment of the frame provides the rotation of both arms T 6 at the same angle around the central hinge, so that when the boiler expands thermally, the screen 4 connection with the frame does not cause additional stresses in the screen. 3 il.

The invention relates to mounting elements of the boiler and can be used in the boiler building.

The purpose of the invention is to increase reliability; nosti.

FIG. 1 shows the proposed system. general form; in fig. 2 - knot! in fig. one; in fig; 3 is a diagram of the expansion of the boiler body and the impact of external forces on it.

Attachment system

1 boiler contains a frame, made in the form of horizontal and vertical power beams 2 and 3, and tubular screens 4, equipped with horizontal position clamps located at the level of horizontal beams 2, fixed on screens 4 8 constant relative to the boiler passing through the center of mass (C.M.) the vertical plane (A-A or B-B) points 5 and interacting with the beams 3. The system contains swivel traverses 6, equipped with —in the middle part of the support stand 7 with a hinge fixed to the beam 3. The said fixers are made in e pairs of rods 8 and 9 connected to the screen 4 on opposite sides of the vertical plane A-A or B-B, and with vertical beams 3 - through the rotary traverse 6 by fixing each rod 8 and 9 on one of the arms traverse 6, and the length of each arm C D and B E is proportional to the distance from the plane A – A or B – B to the anchorage point of the corresponding bar 8 and 9 on screen 4. Beams

2 are stiffness belts.

The system works as follows.

In the process of kindling the boiler its body 1 is heated and expanded. For this reason, the entire screen-4 is moved together with the beams 2 — stiffness belts in the direction of the arrow F, i.e. in the direction perpendicular to the plane of the screen 4. Considering that the distance b from the beams 3 to the nearest mounting point of the screen 4 is significantly greater than the distance I from the beams 3 to the plane of the screen 4, the screen 4 expands unhindered in the direction F, at the same time the screen 4 expands from the point 3 of its intersection with plane BB

to the periphery. In this case, the fastening points 5, which lie on opposite sides of the BB plane, move in opposite directions (in the direction of the arrows I). Moving points 5 with hinges K and L in direction I causes movement of opposite ends of rods 8 and 9 in direction of arrows M. Since the lengths of the arms of VG and VE traverse 6 are directly proportional to the distances respectively ZK and ZL, these shoulders traverse 6 rotate around the hinges 7 without creating additional effort in all elements of the body

1 boiler and frame. Thus, in any thermal condition, the screen 4 of the boiler is securely fixed to the beams 3 of the frame. When external forces are applied to the boiler, for example, seismic or wind loads (□), these loads are transmitted along the screens 4 of the boiler body 1 (force H). These forces H at each point 5 of the fastening of the screen 4 cause the reactions of the supports Κι and Br, the resultant of which B is transmitted through the rods 8 and 9 and the traverse 6 to the beams 3,

The advantage of the proposed system is that in the process of expansion of the heated screen 4 of the boiler body 1 along the cold stiffness belt - beams

2 originates from the point of intersection of the belt of rigidity with the plane passing through the center of mass of the boiler. Transferring external loads from several points of the screen 4 of the boiler to the frame using rods 8 and 9 through the cross member 6 allows the screen 4 to expand freely relative to the fixed frame due to the rotation of the crosshead 6 and the fastening elements are rigidly attached to the body 1 of the boiler and the frame at any time i.e. there is no gap between them and there is no shock load.

The choice of the length of the arms of the traverse 6 is directly proportional to the corresponding distances from the place of attachment of the rods 8 and 9 to the screen 4 to the plane passing through the center of mass, ensures that both arms of the traverse 6 rotate at the same angle around the central hinge (point B), i.e. . the hinge remains fixed in Space

five

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when expanding the body 1 of the boiler. Due to this, during thermal expansion of the boiler, the connection of its screen 4 with the frame does not cause additional 4 voltages in the screen, which increases the reliability of the boiler.

Claims

Claims The system of fastening elements of the boiler body, containing a frame made in the form of horizontal and vertical power beams, and tubular screens equipped with 10 horizontal position fixers fixed to the screens fixed to the screens fixed relative to the boiler mass passing through the center of mass of the boiler 15 plane points and interacting with

frame beams, characterized in that, in order to increase reliability, it additionally contains swivel traverses, each fitted in the middle part 5 with a support post fixed on the vertical beam of the frame, the latches are made. in the form of a pair of rods connected to the screen on different sides from the mentioned vertical plane, and with vertical beams through rotary traverse * by fixing each rod on one of the arms of the traverse, the length of each of the latter is proportional to the distances from the vertical plane to the point fixing the corresponding rod on the screen.

I

FIG. 2