KR101913668B1 - A prefabricated scaffolding device which can work aheat power plant - Google Patents

Abstract

The present invention relates to a temporary structure for interior work of a boiler in a power plant. The temporary structure comprises: a floor post installing part (120) vertically expanding and mounted on the floor of a boiler in a power plant and assembling a structure using floor post materials with the purpose of supporting an upper load; an expansion part (130) expanding outwards in the horizontal direction of the floor post installing part (120) to secure a work space for a worker; and a scaffold mounting part (140) expanding on an upper side of the floor post installing part (120) in a vertical direction and assembling the structure using scaffold materials with the purpose of offering a work space and a moving line of the worker. The present invention can secure a structural stability since the floor post installing part is assembled and mounted using the floor post materials with the purpose of supporting the upper load and the scaffold mounting part is assembled and mounted using the scaffold materials with the purpose of offering a work space and a moving line of the worker.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated scaffolding device,

More particularly, the present invention relates to a boiler installation structure for a boiler of a power plant, and more particularly to a boiler installation structure for a boiler, The present invention relates to a temporary structure for internal construction of a boiler and a method for installing the same in a power plant that assures structural stability by assembling and installing a scaffold installation part using scaffolds for the purpose of providing work space and copper line of an operator.

Generally, a thermal power plant (hereinafter referred to as a "power plant") is a power plant that operates a generator by turning a turbine by generating steam by thermal power by coal or oil as shown in the figure below. .

Referring to the above figure, the internal structure of the boiler is configured to have a taper shape of a top-down type as shown in FIG. 2 so that the heat generated by the furnace can be diffused from the bottom to the top, and the inner wall of the boiler collects heat of the furnace For example, in the case of Ulsan Thermal Power Plant, the length of the tube is about 35m from the bottom.

The thermal power plant has a periodic rest period, in which manpower is injected into the boiler to clean the inside of the boiler, or to replace old and damaged tubes (hereinafter referred to as "management").

In particular, since the inner structure of the boiler of the thermal power plant is made up of the upper stream, it is difficult to apply the normal construction scaffold which is vertically enlarged, and the inner entrance of the boiler is formed to be narrow to prevent heat loss. It is absent.

Conventionally, such a conventional method manages the inside of the boiler by using a ladder or a sling, and the time consumed for completing maintenance of the inside of the boiler is considerably long, a large number of people are needed, In addition, it was vulnerable to safety because it could fall during work.

On the other hand, among the following prior art documents, Registration Utility Model No. 20-0408501 has proposed a prefabricated scaffold made of a ladder type, but since the prefabricated scaffold made of a ladder type needs to manage the inside of the boiler while moving its position, It takes a considerable time to manage and there is a problem that it is difficult to move.

For reference, Registration Utility Model No. 20-0479716 is a prior art document relating to a commonly used architectural scaffold.

For example, when the above-mentioned architectural scaffold is applied to the inside of a boiler of a thermal power plant, the above-mentioned architectural scaffold is not a structure that can expand from the lower part to the upper part, Which is difficult to perform.

Korean Patent No. 10 - 1677178

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a boiler installation part by assembling and installing a boiler installation part by using raw materials for the purpose of supporting an upper load, The present invention provides a temporary structure for internal construction of a boiler and a method for installing the same in a power plant in which a scaffold installation part is assembled and installed using scaffold materials for the purpose of providing a work space and a work line of an operator.

It is a further object of the present invention to provide an elevator system in which an upper connecting rod and a lower connecting rod are respectively connected to a vertical barrel and a railing so as to distribute the load and in particular to provide a separation space below the point where the railing column and the lower connecting rod abut, And a U-bar formed at the end of the large screed material is inserted so that the U-bar is not removed.

According to an aspect of the present invention,

A boiler installation part extending in a direction perpendicular to the bottom surface of the boiler for a power plant and assembling the structure by using the boiler materials for the purpose of supporting the upper load;

An extension part extending in a horizontal direction outside of the barb mounting part to secure a work space of an operator; And

And a scaffold installation part extending in a vertical direction on the upper side of the horseshoe installation part and assembling a structure using scaffold materials for the purpose of providing a work space and a copper line of an operator, Can be provided.

Here, the bottom foundation structure is characterized in that the sectional shape of the ring girder is circular.

The tubular mounting portion is a tubular body having a diameter of 60.5 mm and includes a plurality of tubular vertical members arranged in a square on a plane to support a vertical load; And a tilting horizontal member horizontally connecting the tilting vertical member and the vertical tilting member.

Further, the extension portion may include: a bracket having one end connected to the right vertical member and installed in a cantilever shape; A parapet connected vertically to the other end of the bracket; A bracket for connecting a bottom surface of the other end of the bracket and the right vertical reinforcement member on a diagonal line so that a load concentrated on the other end of the bracket is supported on the right vertical reinforcement; And an operator footrest coupled to the upper portion of the bracket.

At this time, the bracket includes a top connecting rod, a lower connecting rod spaced apart from the bottom of the upper connecting rod by a predetermined distance, and a plurality of straps connecting the upper connecting rod and the lower connecting rod in a longitudinal direction, A clip portion as a coupling means is formed at both ends of the connecting rod, and the lower connecting rod is formed such that a clip portion is formed only on the side in contact with the upright vertical member and the other side end is in contact with the parapet, And the distance between the upper and lower ends of the opposite side is narrowed so as to form a substantially triangular shape.

In addition, the railing pillars are provided with a separation prevention space below the point where they abut the lower connecting rod, thereby preventing the U-bar formed at the end of the curved rod from being inserted and removed.

In addition, the foot plate is arranged such that a straight foot plate is disposed on four sides in a plan view, and a triangular corner foot plate is disposed on a corner where the straight foot and the straight foot meet, And a locking ring is formed at the vertexes at right angles so as to be fitted in the vertical member and to move up and down.

 In addition, a quadrangular pipe-like yoke is provided in the section which is transformed from the upstream installation part to the downstream side installation part, and the ends of the upstream installation part, the end parts of the scaffold installation part, .

According to another aspect of the present invention,

Expanding the bottom surface of the boiler for the power plant in the vertical direction using the trowel materials;

Forming an extension in an outer horizontal direction of the trough mounting portion; And

And expanding the scaffolding unit in the vertical direction by using scaffold materials on the upper side of the scaffolding unit.

In the present invention as described above, the boiler installation part is assembled and installed by using the raw materials for supporting the upper load in the lower part of the boiler, and by using the scaffold materials for the purpose of providing work space and copper line of the worker above the boiler installation part By assembling and installing the scaffold mounting part, it is possible to secure the structural stability.

In addition, in constructing the extension part, the upper connecting rod and the lower connecting rod are connected to the right and left vertical members and the railing pillars, respectively, so as to distribute the load. Particularly, a separation preventing space is provided below the point where the railing pillars and the lower connecting rod come into contact, So that the U-bar formed on the end of the large screed material is not inserted and removed so that the safety accident is prevented.

1 is a conceptual view schematically showing a boiler internal structure to which a boiler internal construction for a power plant according to the present invention is applied.
FIG. 2 is a view showing an internal construction of a boiler for explaining a built-in structure for a boiler internal work of a power plant according to the present invention. FIG.
3 is a perspective view of the base plate shown in the "A" part of Fig.
Fig. 4 is an enlarged view showing the extension shown in the "B" part of Fig. 2; Fig.
5 is a perspective view showing the footrest installation structure of the present invention.
FIG. 6 is an enlarged view showing a yoke reinstalling section shown in the "C" portion of FIG. 2; FIG.
FIG. 7 is an enlarged view showing another yoke reinstalling section shown in the "D" portion of FIG. 2; FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view illustrating a boiler internal structure to which a boiler internal construction for a power plant according to the present invention is applied, and FIG. 2 is a view for explaining a boiler internal construction for explaining a boiler internal construction for a power plant according to the present invention .

As shown in the drawing, the present invention mainly comprises a floor bottom mounting part 120, an expansion part 130, and a scaffold mounting part 140.

Hereinafter, the installation part of the trapezoid will be described with reference to Fig.

As shown in the drawing, the hatchback installation part 120 is vertically extended on the yoke A2 of the bottom foundation structure 110, and the structure is assembled using the hilly materials for the purpose of supporting the upper load do.

The tie barriers used for the tie barriers 120 are mainly used as construction materials such as molds for supporting a vertical load and are tubular bodies having a diameter of 60.5 mm and are distinguished from scaffolds having a diameter of 48.6 mm Material.

The above-mentioned tongue-and-groove materials consist of a tongue-like vertical member 121, a tongue-like horizontal member 123, and a fastening means A1 for connecting them.

The vertical members 121 are arranged in a square on a plane and installed in a vertical direction, and four lanterns may be installed, but they can be expanded according to the inner size of the boiler.

For example, the extension in the vertical direction can be extended by using a circular bar-shaped connecting pin member that is assembled by sandwiching the tube body and the tube body, and the expansion in the horizontal direction is achieved by fastening between the horizontal straight member 123 and the horizontal straight member 121 It can be expanded by connecting it using the means A1.

The hill horizontal member 123 is a tubular body horizontally connecting the hill vertical member 121 and the hill vertical member 121 and has a clip portion A11 having insertion grooves formed at both ends thereof so that a plate material can be inserted.

The right curved vertical member 121 includes a plate-shaped clip plate A13 which is held on the clip portion A11 in an axial direction.

A fastening pin A13 penetrating the clip plate A13 and the clip portion A11 in a state of being bitten is inserted to prevent the clip A13 from coming off.

At this time, the clip plate A13 may form a plurality of fastening pin through-holes in the circumferential direction so that the clip plate A13 can be fastened in various directions around the right vertical member 121.

The base plate 110 will be described with reference to FIG.

3 is a perspective view of the base plate shown in the portion "A" of Fig. 2. The base plate 110 as shown in the figure has a bottom ground area on the bottom surface of the jack base contacting the bottom surface of the boiler Lt; RTI ID = 0.0 > detachably < / RTI >

The base plate 110 is formed with a center guide 111 coupled to the inside diameter of the vertical member 121 at the center of a plate shaped body having a wide ground surface area, And a plurality of fastening holes 113 are formed between the clamping wing 112 and the center guide 111 so that the fastening holes 113 can be bolted to the jack base.

The base plate 110 may be used to form an irregular road surface due to obstacles such as irregularities on the bottom of a boiler of a power plant or to be installed for stabilization of a structure.

Hereinafter, the expansion unit will be described with reference to FIG.

4 is an enlarged view showing the extension shown in the "B" part of FIG.

The enlarged portion 130 as shown in the drawing provides a structure for expanding the work space in the horizontal direction outside of the rough installation portion 120.

The extension 130 includes a bracket 131, a railing 134, a stiffener 133, and an operator's foot 135.

The bracket 131 is a cantilever type structure having one end coupled to the right vertical member 121 to support a load.

The bracket 131 includes an upper link 131a and a lower link 131b spaced apart from the upper link 131a by a predetermined distance and an upper link 131a and a lower link 131b. A clip portion A11 as a coupling means is formed at both side ends of the upper linking portion 131a and a lower linking portion 131b is formed as a fastener vertical portion 131a, The clip portion A11 is formed only on the side in contact with the horizontal member 121 and the other side end portion is in contact with the parapet 134 so as to abut on the horizontal member 134, And the spacing distance between the upper and lower ends of the opposite side is narrowed to form a substantially triangular shape.

At this time, the lower connecting rod 131b may bend the end of the side of the railing 134 in two steps to form a step at both ends.

The clip portion A11 is used in the fastening means A1 by inserting the clip plate A13 formed in the rightmost vertical member 121 into the insertion groove and penetrating the clip plate A13 using another fastening pin A13.

At this time, the clip plate A13 may form a plurality of fastening pin through-holes in the circumferential direction so that the clip plate A13 can be fastened in various directions around the right vertical member 121.

The railing 134 is coupled to the other end of the bracket 131 and the other end of the bracket 131 is connected to the rotor 121 using a stiffener 133, So that the load concentrated on the other end portion is supported by the right vertical member 121.

At this time, the railing 134 is a member having a shape similar to that of the vertical member 121, and the length is shortened.

The U-bar 133a formed at the end of the stiffener 133 in the spacing space is formed with a separation space below the point where it abuts the lower link 131b of the railing 134, .

The lower portion of the U-bar 133a of the inserted diagonal plate 133 is supported by the diversion prevention plate 134a so that the U-bar 133a can be prevented from being separated from the U-bar 133a.

An operator's footrest 135 is coupled to the upper portion of the bracket 131.

The footrest installation structure will be described in detail with reference to FIG.

5 is a perspective view showing the footrest installation structure according to the present invention. The footrest 135 as shown in the figure is provided with a linear footrest 135a on four sides in a plan view, a straight footrest 135a, And a corner foot plate 135b having a triangular shape is arranged at a corner portion where the foot plate 135a meets.

At this time, the linear footrest 135a is a generally used construction material, and a "C" -shaped latch is integrally formed at the both end portions of the footrest, so that the linear footrest 135a is engaged with the upper portion of the pipe.

Such a pedestal member uses a straight pedestal for attaching a corner portion. However, since the pedestal member is not easy to fasten between the materials, there is a problem that the pedestal member is not attracted to the pedestal member, The corner foot plate 135b solves this problem as a customized manufacturing method.

The corner pedestal 135b is formed with a locking protrusion 135c which is fitted to the right curved horizontal member 123 at two orthogonal sides and a fastening ring 135d which is inserted into a perpendicular member and is vertically movable, .

The engagement jaw 135c prevents twisting or slipping, and the engagement ring 135d prevents the corner footplate 135b from coming off, and is movable in the vertical direction, so that it can be easily installed or disassembled .

A scaffolding installation part 140 is formed on the upper side of the horseshoe installation part 120 to vertically assemble the structure using scaffolding materials for the purpose of providing a work space and copper lines for an operator.

The construction and installation method of the scaffold installation part 140 are generally known technologies used in a construction site, and a detailed description thereof will be omitted in the present invention.

In the present invention, a quadrangular tubular yoke A2 is installed as an intermediate joint member in a section that is converted from the hatching installation part 120 to the scaffold installation part 140. [

Hereinafter, an example of reinstalling the yoke of the present invention will be described with reference to Figs. 6 and 7. Fig.

FIG. 6 is an enlarged view showing the yoke re-installation section shown in the "C" portion of FIG. 2, and FIG. 7 is an enlarged view showing another yoke reinstall section shown in the "D" portion of FIG.

As shown in FIG. 6, there is a problem that the spacing between the vertical members and the vertical members are not matched with each other in the horizontal mounting unit 120 and the horizontal mounting unit 140, It is customary not to.

The U-shaped clamp C is formed by forming the U-shaped clamp C and the end of the root mounting part 120, the yoke A2, the end of the scaffold attaching part 140 and the yoke A2, To the yoke A2, respectively.

As shown in FIG. 7, the yoke A2 may be used in the scaffolding unit 140 as well.

For example, if a boiler facility such as a tube section is interfered with in a scaffold installation section, it is difficult to connect a vertical scaffold in that section, so that it can be supported using a yoke material (A2) at a point excluding the opening.

Such a method provides a simple, yet easy to assemble, and offers the advantage of connecting the raw material to the scaffold material.

Hereinafter, a method of installing a boiler internal construction for a power plant according to the present invention will be described in detail.

First, a step of expanding the boiler installation portion 120 in the vertical direction is performed on the bottom surface of the boiler for power generation using the raw materials.

Next, a step of forming the extension part 130 in the horizontal direction outside of the barb mounting part 120 is performed.

Next, the step of vertically expanding the scaffold-mounted part 140 using scaffold materials is performed on the upper side of the horseshoe-mounted part 120.

In the present invention as described above, the boiler installation part is assembled and installed by using the raw materials for supporting the upper load in the lower part of the boiler, and by using the scaffold materials for the purpose of providing work space and copper line of the worker above the boiler installation part By assembling and installing the scaffold mounting portion, the structural stability can be ensured.

In addition, in constructing the extension part, the upper connecting rod and the lower connecting rod are connected to the right and left vertical members and the railing pillars, respectively, so as to distribute the load. Particularly, a separation prevention space is provided below the point where the railing pillars and the lower connecting rod meet, The U-bar formed at the end of the large stiffener can be prevented from being inserted and removed, thereby making it possible to prevent a safety accident.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and any person skilled in the art can make various modifications without departing from the gist of the present invention. It is to be understood that such changes and modifications are intended to fall within the scope of the appended claims.

110: base plate 111: center guide
112: clamping wing 113: fastening hole
120: Hollow mounting part 121: Hollow vertical member
123: Horizontal horizontal member 130: Bracket mounting part
131: bracket 131a: upper linkage
131b: lower connecting rod 131c:
131d: clip portion 133:
134: Raised column 134a:
135: foot plate 135a: straight foot plate
135b: corner foot plate 135c:
135d: fastening ring 140: scaffolding part
A1: fastening means A11: clip section
A12: clip plate A13: fastening pin
A2: yoke C: U-shaped clamp

Claims (9)

A trough installation part (120) extending in a direction perpendicular to the bottom of the boiler for power generation and assembling a structure using tread materials for the purpose of supporting an upper load; An extension part 130 extending in a horizontal direction outside the hill-mount part 120 to secure a work space of an operator; And a scaffold installation part (140) extending vertically above the upright installation part (120) for assembling a structure using scaffold materials for the purpose of providing a work space and a copper line of an operator,
The barb mounting portion 120 is a tube having a diameter of 60.5 mm and includes a plurality of barb vertical members 121 arranged in a square on a plane to support a vertical load; And an oblique horizontal member 123 horizontally connecting the obliquely vertical member 121 and the obliquely vertical member 121,
The base plate 110 is detachably coupled to the bottom surface of the jack base contacting the bottom surface of the boiler. The base plate 110 has a plate-like body A clamping blade 112 for clamping the four corners of the jack base is formed around the outer periphery of the center guide 111, Wherein a plurality of fastening holes (113) are formed between the wing (112) and the center guide (111) so that the jack base can be bolted to the jack base.
delete The method according to claim 1,
The extension 130 includes: a bracket 131 having a cantilever shape and having one end connected to the right vertical member 121;
A handrail column 134 vertically coupled to the other end of the bracket 131;
A stiffener 133 connecting the bottom surface of the other end of the bracket 131 and the right vertical member 121 diagonally to support a load concentrated on the other end of the bracket 131 on the right vertical member 121; And
And a work footrest (135) coupled to an upper portion of the bracket (131).
The method of claim 3,
The bracket 131 includes an upper link 131a and a lower link 131b spaced apart from each other by a predetermined distance in the lower portion of the upper link 131a and between the upper link 131a and the lower link 131b A clip portion A11 as a coupling means is formed at both side ends of the upper linking portion 131a and the lower linking portion 131b is connected to the right and left vertical portions 121a, And the other side end portion is formed so as to abut against and contact with the railing 134, and the distance between the upper and lower ends of the side connected to the upright vertical member 121 is made wider And the distance between the upper and lower ends of the opposite side is narrowed so as to form a triangular shape.
The method of claim 3,
The railing 134 is formed with a separation preventing plate 134a with a spacing space below the point at which it touches the lower connecting rod 131b so that the U-bar 133a formed at the end of the striking member 133 is inserted Wherein the boiler is installed in the boiler.
The method of claim 3,
The pedestal 135 has a rectangular pedestal 135a on four sides and a corner pedestal 135b having a triangular shape on the corner where the pedestal 135a and the pedestal 135a meet. The corner footrest 135b is formed with a pair of right and left angled hooking protrusions 135c which are respectively fitted to the right and left horizontal grooves 123. Vertical angled vertices of the corner footrests 135b are fastened to vertical members, And a ring (135d) is formed on the bottom of the boiler.
The method according to claim 1,
A quadrangular tubular yoke A2 is installed as an intermediate joint member in a section of the hatching installation part 120 to be converted into the scaffold installation part 140,
Wherein the ends of the upstream installation part (120), the yoke (A2), the end of the scaffold installation part (140) and the yoke (A2) are fitted together by a U-shaped clamp (C) Hypothetical structures.
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