SU1470919A1 - Chimney and method of constructing same - Google Patents

Abstract

This invention relates to the field of chimney construction. The aim of the invention is to increase reliability in operation. The pipe is provided with horizontal in-situ horizontal reinforced diaphragms of rigidity 3 suspended on inclined extensions 2 to the bearing shaft 1. Diaphragm 3 has holes in the number of gas exhaust trunks assembled from individual bar 5 and attached to the diaphragm of rigidity 3 using support brackets 11. Tsargi the gas exhausting trunk 5 is equipped with compensators 14. A method for mounting a pipe involves installing a reinforcing block of stiffness diaphragm 3 inside the bearing trunk 1 before mounting each of the tsarg, then lifting the block to The design elevation in the level of each regalia is fixed in a horizontal position, after which the inside of the barrel 1 of the barrel 5 of the exhaust pipe through the aperture in the stiffening diaphragm is lifted and suspended to the stiffening diaphragm 3 on the support brackets 11. 2 sec. f-ly, 5 il .

Description

14709

brackets. The gas shafts 5 of the gas exhausting trunk are equipped with shkatopatami 14. The method of mounting the pipe involves the installation of a reinforcing block of stiffness diaphragm 3 inside the bearing shaft 1 before mounting each of the shank, then lifting the block to the design mark in

nineteen

the level of each tsarg and fastening in a horizontal position, after which the inside of trunk 1 of tsar 5 of the exhaust tube through the aperture in the stiffening diaphragm is raised and suspended to the stiffening diaphragm 3 on the support brackets. 2 sec. f-ly, 5 ill.

one

The invention relates to the construction of chimneys with suspended trunks and can be used to remove flue gases in thermal power plants.

The purpose of the invention is to increase reliability in operation.

FIG. 1 shows a pipe., Vertical, root incision; FIG. 2–4 stem tube, cross section in FIG. 3–3 stem tube, cross section; Fig. 4 shows a section A-A in Fig. 2 and 3i; Fig. 5 shows a suspension assembly of the dorsal to the rigidity diaphragm using a support bracket and a section BB.

A multilateral chimney pipe consists of a carrying trunk 1, to which stiffening diaphragms made up of standardized trapezoid panels 3 are hinged at their outer edges by means of expanding hinges 3. The material of these panels can be, for example, reinforced thermite-cristobolite concrete. On the upper plane of the panel 3, along its whole contour, there is a right-angled groove, the upper edge of which is framed around the entire perimeter, for example, with a round rebar. To form a rigid diaphragm, the panels 3 are joined by their edges with the HELP of standardized round butt bars 4 with threads on the cantilever ends. Slat 4 are laid in a rectangular groove along the junction line of panels 3, and then welded to round reinforcing bars framing the contour of the panel. Panels 3 are joined to each other so that they cover along the perimeter of the dorsal 5 all gas inlets

trunks, to form openings for passage through them of the tsarg. Panels 3, forming the aperture diaphragm, are joined to one another and in their

lower planes m. Joints are made with the help of embedded parts located at the corners of panels 3. The embedded parts are connected to one another by welding with the help of connecting strips.

The stiffness diaphragm is suspended from the bearing trunk as follows.

On the outer cantilever plates of the butt bars 4 there is a cutting, on

which with the help of a special nut 6 with a hinged bar 7 fixed the lower end of the stretch 2. The upper end of the stretch is also secured to the hinge 9 by means of the hinge slat 8

in the embedded part, embedded in the inner surface of the bearing trunk. In addition, each stretch has a special device 10 for adjusting its tension, and hence the horizontal stiffness diaphragm.

Each tsarg 5 gazbotvod w 1x shafts is pivotally suspended along its perimeter with the help of anchor brackets 11 to the edges of the stiffening diaphragm, forming openings for the passage of tsarg.

The suspension of each of the tsargs is carried out as follows. On the inside

the cantilever ends of the butt bars 4 there is a thread on which a special nut 12 with a rotatable support bar 13 is screwed. The support brackets 11 mounted on the welding

the perimeter of the dorsal 5, freely resting on the pivot bearing bars 13. Thus, by means of the supporting

 1470919

The arches of 11 pivot bearing lanok 13 and the strut 2 carried out the suspension of each tsargah 5 through a paradigm to the bearing trunk. The arg 5 gutter suspension is mounted from top to bottom. Each tsarg is connected with the next tsargah using a gas-tight compensator 14, which ensures the placement of one tsar relative to the other within the calculated limits, without pressing the gas-density of the entire flue gas trunk.

The construction of the chimney with 15 suspended barrels begins with the construction of the main shaft. After it is concreted, a main beam is installed at its upper mark (for the mount, and for the metal of the 20 structures of the exhaust barrels and stiffening diaphragms). The steel structures of the diffusers of the exhaust shafts are raised and mounted first. After fixing 25 diffusers in the design position

The lifting and mounting of the suspended diaphragm stiffness and metal structures of the exhaust shafts begins.

Elements of diaphragms — trapezoidal panels 3 and butt rods 4 — are drawn into the pipe through openings for gas ducts in the non-existent trunk 1 of the flue pipe. Inside the pipe, using special conductors, 35 aperture diaphragms are assembled (for any types of chimneys: one, two -, three and so on; stem). When assembled and docked, with the help of special cross-arms, the diaphragm-40 we raise to the required design elevation and are hingedly suspended in our outer perimeter by stretching 2 to the supporting stem 1. Using special tightening devices 10, the tension of stretching 2 is adjusted so that the hanging balcony is designed to be strictly horizontal. Then, through the openings for gas ducts inside the pipe, elements of the outer 5 shunt barrels are delivered. In the same place, inside the pipe, with the help of special conductors, an additional assembly of tsars is carried out. 5.55

Collected inside the pipe, the barrels 5 are alternately raised to their design elevations. The rise of the legs 5 is carried out with the help of special herbs on the ci di shplt pl c. с н п с

However, version No. 1 with load-lifting equipment and through openings for passage. king 5 in hardness diaphragm. After raising the tsargah 5 to the design mark, it is suspended to the diaphragm from the support brackets 11. Filling up the tzargos 5 is performed as follows. After passage of the leg 5, through the hole in the stiffness diaphragm, the turn bars 13, secured with a special nut 12 to the butt bars 4 on their inner cantilever side parallel to the rods 4, rotate 90 ° and secured with the nut in this position, and shaft 5 It descends more freely, resting its support brackets 11 on the support turntables 13. When this operation is completed, the tension of the tension 2 is re-adjusted.

The installation process of the flue gas pipe is from top to bottom. First, the regular diaphragm of rigidity rises to the design mark, and then the next bolt 5. The raised and self-suspended bolts 5 are fixed one to the other with the help of gas-tight compensators 14, forming a single exhaust gas trunk. After suspension of the last in turn stiffening diaphragm and the last 5 shunting of the exhaust shafts, the exhaust shafts are connected to the flue ducts.

Claims (2)

1. A method of erecting a chimney, including the erection of a support shaft, the installation of a carrier beam at its upper elevation and the installation of the exhaust trunk barrels from top to bottom, characterized in that, in order to improve reliability in operation, before assembly of each barrel inside the support shaft body block of the stiffening diaphragm, then lift the block to the design elevation in the level of each tsarg and hang it to the supporting trunk in a horizontal position, after which the collected inside the pipe of the exhaust gas trunk through the emy in stiffening diaphragms but; -; iimyut and suspended to a diaphragm w / stikst on support arms. 2. A chimney pipe, including a carrying trunk, a gas exhaust trunk, consisting of flanks, mounted inside it. connected between, and fastened oblique screw extensions, and compensators installed between the tsar, so that, in order to increase reliability in operation, the pipe is equipped with polygonal The horizontal collective stiffening diaphragms, made with holes according to the number of gas evacuation barrels, are installed in the level of each of the side of the gas evacuation trunk, the latter being made with stiffness diaphragms and supporting brackets hinged to them. Fi, g.2 Fiz.  Compiled by M. Korchak Editor I. Derbak Tehred MGDidyk Corrector M. Vasilyeva Order 1563/36 Circulation 640 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 fe Subscription