CN215054154U - Keel structure and plugging system - Google Patents

Abstract

The utility model provides a keel structure and plugging system, wherein, keel structure includes horizontal supporting component and vertical supporting component. At least one side of the first supporting piece is provided with a first groove, and the first groove is suitable for enclosing a deformation cavity for the first fastener to deform with the plugging plate. The first fastener penetrates through the plugging plate and the first supporting piece along the depth direction of the first groove, the middle part of the plugging plate is hung on the first supporting piece, and the middle part of the first fastener is located in the deformation cavity. Under the high temperature state, when second support piece and third support piece receive the heat and produce thermal stress, outwards draw first support piece along the length direction of these two support pieces, when first support piece outwards draws first fastener, the middle part of first fastener can be in the deformation chamber bending deformation, absorbs thermal stress, and the shutoff panel is not directly outwards pulled, can effectively avoid the production crackle of the mounting hole department of installing first fastener on the shutoff panel to effectively prevent crack propagation and shutoff panel fracture.

Description

Keel structure and plugging system

Technical Field

The utility model relates to a converter valve sleeve pipe block structure technical field, concretely relates to keel structure and plugging system.

Background

A converter station is a station in a high voltage direct current transmission system that converts alternating current to direct current or direct current to alternating current. The core of the converter station is a converter station valve hall, a converter valve is arranged in the converter station valve hall, and the converter valve is connected with a converter transformer outside the valve hall through a sleeve. The converter valve and the converter transformer are separated through a blocking structure, and the sleeve penetrates through a through hole in the blocking structure to communicate the converter transformer and the converter valve. The plugging structure is called a plugging system for short in the design of a converter station valve hall. The plugging system is essentially a firewall.

The design specifications of the GB/T50789 +/-800 kV direct current converter station are as follows: a firewall is adopted to separate the valve hall, the converter transformer and the oil immersed smoothing reactor, and the fire resistance limit of the firewall is not lower than 3 h; GB 50016(2018 edition) building design fire code definition: the fire wall is an incombustible wall which prevents the fire from spreading to an adjacent building or an adjacent horizontal fire-prevention subarea and has the fire resistance limit of not less than 3 h; in multiple fire accidents, the fire points are all caused by the converter transformer side, so the defense target of the plugging system takes the converter transformer side as the protection direction, and the fire resistance limit of the hydrocarbon fire on the fire facing side of the plugging system is required to be not lower than 3 h.

The refractory limit test of the plugging system is generally carried out in a refractory limit test furnace. The test piece mounting position is a square concrete frame, the frame is formed by pouring reinforced concrete, the test piece of the plugging system for the test is mounted on the frame, after the test piece is mounted, the frame with the test piece is hoisted or pushed to a test furnace mouth, then the frame is fixed and locked, and then a fire endurance test is carried out.

The plugging system test piece is generally composed of a stainless steel keel, a plugging plate and an auxiliary material. The height of a plugging system test piece is 3-6 meters, a three-beam structure is generally adopted, the stainless steel keel comprises an upper beam, a lower beam, a half-height beam and an upright post, the half-height beam and the upright post are arranged between the two beams, and the upright post is connected with the upper beam, the lower beam and the half-height beam through angle codes. The upper part and the bottom of the plugging plate are respectively fixed on the upper cross beam and the lower cross beam through self-tapping screws, the middle part of the plugging plate is fixed on the half-height cross beam through self-tapping screws, the upper cross beam, the lower cross beam and the half-height cross beam are fixed on the concrete frame through anchor bolts, the plugging plate, the upper cross beam, the lower cross beam, the half-height cross beam and the concrete frame form rigid connection, and no deformation space generates thermal stress inside each cross beam when the cross beam deforms under heat.

The upper cross beam, the lower cross beam and the half-height cross beam are all stainless steel square steel, and the stainless steel square steel can generate thermal expansion at high temperature; the plugging plate is generally a floating bead plate, a vermiculite plate and an aluminum silicate sandwich composite plate, wherein the floating bead plate and the vermiculite plate belong to inorganic rigid plates and can be subjected to thermal shrinkage at high temperature. The thermal expansion coefficient of the stainless steel square steel is 1.87 multiplied by 10 < -5 >, in a general test, the temperature of the stainless steel square steel is about 400 ℃, and under the temperature, if a test piece with the size of 5 multiplied by 5m is adopted, the thermal expansion length of the 304 stainless steel square steel with the full length of the test furnace opening is about 35 mm; and the shrinkage of the plugging sheet material in thermal shrinkage is added, so that the difference of the expansion elongation of the plugging sheet material and the stainless steel square steel is at least more than 35 mm.

The column square steel is heated and expanded to generate thermal stress, the half-height beam can be pulled outwards along the axial direction of the column, the half-height beam pulls the self-tapping screw along the direction perpendicular to the self-tapping screw, and because the surface of the plugging plate facing the square steel is tightly attached to the surface of the square steel, the self-tapping screw is not provided with a bending deformation space and can only move upwards or downwards along with the half-height beam and cut the plugging plate, so that the plugging plate generates cracks from the screw holes, and the plugging plate is cracked and damaged due to crack expansion.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the shutoff panel among the prior art and hugging closely half high beam square steel ground and connect on half high beam, leads to the shutoff panel to be heated easily and leads to the defect that the shutoff panel ftracture is leaded to in screwed hole department production crack expansion.

Therefore, the utility model provides a keel structure, include

The transverse supporting assembly comprises a first supporting piece, at least one side of the first supporting piece is provided with a first groove, and the plugging plate is suitable for being connected to the first supporting piece through a first fastener; the first groove is suitable for enclosing a deformation cavity for the first fastener to deform with the plugging plate;

a vertical support assembly including a second support connected to a first face of the first support and a third support connected to a second face of the first support, the first and second faces being opposite faces adjacent to the first groove slot; the second supporting piece, the third supporting piece and the first supporting piece are arranged in a staggered mode.

Optionally, in the keel structure, the first supporting member is a channel steel, and the first groove is formed in one side of the first supporting member.

Optionally, in the keel structure, two channel steels are provided, and the two channel steels are arranged side by side along the depth direction of the first groove; the second supporting piece and the third supporting piece are respectively connected to the first surface and the second surface of the two channel steel.

Optionally, in the keel structure, the lateral support assembly further includes a fourth support member, and the first support member is disposed on the fourth support member and is parallel to the fourth support member;

the third supporting piece is arranged on the fourth supporting piece and connected with the first supporting piece.

Optionally, the keel structure further comprises at least one adjusting connector adapted to be connected to the concrete frame;

the sides of the second supporting piece or the third supporting piece far away from each other are movably connected to the adjusting connecting piece.

Optionally, in the keel structure, the second and third supporting members have a cavity in the middle;

two opposite side walls of the adjusting connecting piece are provided with first sliding holes extending along the length direction of the adjusting connecting piece; the adjusting connecting piece is sleeved outside the second supporting piece or the third supporting piece, or the adjusting connecting piece is arranged in the cavity in a penetrating mode;

the second fastener penetrates through the first sliding hole and the vertical supporting assembly to connect the adjusting connecting piece and the vertical supporting assembly.

Optionally, in the keel structure, the adjusting connecting piece is square, and the adjusting connecting piece is arranged in the cavity in a penetrating manner.

Optionally, in the keel structure, the adjusting connecting piece is arranged on the side of the second supporting piece far away from the third supporting piece.

Optionally, in the keel structure, at least one of the two ends of the fourth supporting member is provided with an adjusting connector.

Optionally, in the above keel structure, the lateral supporting component further comprises

A fifth support member provided on one side in the width direction of the first support member and parallel to the first support member; the fifth supporting piece is arranged on two sides of the vertical supporting component in a segmented mode.

Optionally, in the above keel structure, the lateral supporting component further comprises

A sixth supporting member which is provided on the other side in the width direction of the first supporting member and is parallel to the first supporting member; the sixth supporting piece is arranged on two sides of the vertical supporting component in a segmented mode.

Optionally, in the keel structure, a gap is formed between the fifth supporting member and the outer wall of the vertical supporting assembly towards the inner end surface of the vertical supporting assembly; the outer end face of the fifth support piece, which faces away from the vertical support assembly, is retracted inwards to the outer end face of the adjusting connector on the fourth support piece; and/or

The sixth supporting piece is provided with a gap towards the inner end face of the vertical supporting assembly and the outer wall of the vertical supporting assembly; the outer end face of the sixth support piece, which faces away from the vertical support assembly, is retracted inwards to the outer end face of the adjusting connector on the fourth support piece;

the utility model provides a plugging system, which comprises a keel structure and a plugging plate, wherein the middle part of the plugging plate is connected to a first supporting piece through a first fastener; the first groove and the blocking plate enclose a deformation cavity for the first fastener to deform.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a keel structure, plugging panel and first support piece are worn to establish by first fastener along first recess groove depth direction, hang the middle part of plugging panel on first support piece, and the middle part of first fastener is in the deformation chamber, and not direct with the wall contact of first support piece. Under the high temperature state, when second support piece and third support piece receive the heat and produce thermal stress, outwards draw first support piece along the length direction of these two support pieces, when first support piece outwards draws first fastener, the middle part of first fastener can be in the deformation chamber bending deformation, absorbs thermal stress, and the shutoff panel is not directly outwards pulled, can effectively avoid the production crackle of the mounting hole department of installing first fastener on the shutoff panel to effectively prevent crack propagation and shutoff panel fracture.

2. The utility model provides a keel structure, second support piece, third support piece and fourth support piece's the outside all is connected with adjusting the connecting piece, and the rethread adjusting the connecting piece is connected with the concrete frame. When the thermal stress is increased to a certain intensity, one side of the second supporting piece close to the adjusting connecting piece is outwards stretched, and the through bolt slides along the first sliding hole to release the thermal stress in the second supporting piece. After the thermal stress in the second supporting piece is released, the pulling force on the channel steel and the first fastener is greatly reduced, and the occurrence of crack propagation of the plugging plate is effectively avoided.

3. The utility model provides a plugging system, when keel structure produced thermal stress, the middle part of first fastener can be in the deformation chamber bending deformation, absorbs thermal stress, can effectively avoid the mounting hole department of installing first fastener to produce the crackle on the shutoff panel to effectively prevent crack propagation and shutoff panel fracture.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an assembly front view of a keel structure and a concrete frame provided in embodiment 1 of the invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of an adjustment connection;

FIG. 5 is a schematic view of the engagement of the adjustment connection with the second support member;

fig. 6 is a schematic view of an angle code.

Description of reference numerals:

111-a first support; 112-a fourth support; 113-a fifth support; 114-a sixth support; 121-a second support; 1211-second slide hole; 122-a third support; 13-adjusting the connection; 131-a first slide hole; 132-a second fastener; 133-a first mounting hole; 21-a fire-facing surface plate; 22-back fire face plate; 3-a concrete frame upper beam; 4-a concrete frame lower beam; 5-left upright post of concrete frame; 6-right upright post of concrete frame; 7-a first fastener; 8-corner connector.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

The present embodiment provides a keel structure, as shown in fig. 1-3, which includes lateral support assemblies and vertical support assemblies.

The transverse supporting assembly comprises a first supporting piece 111, at least one side of the first supporting piece 111 is provided with a first groove, and the middle part of the plugging plate is suitable for being connected to the first supporting piece 111 through a first fastener 7; the first groove is suitable for enclosing a deformation cavity for the first fastener to deform with the plugging plate.

The vertical support assembly includes a second support 121 and a third support 122. The second support 121 is coupled to a first surface of the first support 111, and the third support 122 is coupled to a second surface of the first support 111. The first surface and the second surface are two opposite surfaces adjacent to the notch of the first groove; the second and third supporting members 121, 122 are disposed alternately with the first supporting member 111. The upper and lower parts of the plugging sheet are adapted to be attached to the outer walls of the second and third supporting members 121 and 122.

The keel structure of the structure is applied to a plugging system of a valve hall of a convertor station, the second supporting piece 121 and the third supporting piece 122 are both stainless steel square steel, and when the plugging plate is a floating bead plate and a vermiculite plate and a fire endurance test is carried out, the end parts of the second supporting piece 121 and the third supporting piece 122 are suitable for being connected to a concrete frame. The plugging plate and the first supporting piece 111 are penetrated by the first fastener along the depth direction of the first groove, the middle part of the plugging plate is hung on the first supporting piece 111, and the middle part of the first fastener is positioned in the deformation cavity and is not directly contacted with the wall surface of the first supporting piece 111. Under the high temperature state, when second support 121 and third support 122 are heated and produce thermal stress, outwards draw first support 111 along the length direction of these two supports, when first support 111 outwards draws first fastener, the middle part of first fastener can be in the deformation chamber bending deformation, absorbs thermal stress, and the shutoff panel is not directly outwards pulled, can effectively avoid the production crackle of the mounting hole department of installing first fastener on the shutoff panel to effectively prevent crack propagation and shutoff panel fracture.

For example, referring to fig. 2, the first support 111 is a channel, and the first groove is a groove of the channel, and the first groove is disposed on one side of the channel leg in the width direction. The outer wall surfaces of the two flanges of the channel steel serve as a first surface and a second surface, and are connected to the second support member 121 and the third support member 122. The groove space of the channel steel is large, and the deformation space provided for the first fastener is large. And the channel steel is a standard part, so that the channel steel is convenient to directly purchase and use.

Referring to fig. 1 and 2, the lateral support assembly further includes a fourth support member 112, the fourth support member 112 is made of stainless square steel, the first support member 111 is welded on the fourth support member 112 and is parallel to the fourth support member 112, and the third support member 122 is disposed on the fourth support member 112 and is connected to the first support member 111.

Preferably, the number of the channel steels is two, and the two channel steels are welded side by side along the depth direction of the first groove; the second and third supporters 121 and 122 are respectively attached to the first and second faces of the two channel steels.

The second support 121 and the third support 122 are vertical columns of the keel structure, and the axes of the second support 121 and the third support 122 are coincident. In use, for example, the second support 121 is located at the upper portion of the channel, the third support 122 is located at the lower portion of the channel, the second support 121 is perpendicular to the channel, and the channel is located on the top surface of the fourth support 112. The second support 121 is welded to the top of the channel by means of corner bracket 8 as shown in fig. 6, and the third support 122 is welded to the bottom of the fourth support 112 by means of corner bracket.

The plugging plate comprises a fire-facing surface plate 21 and a back fire surface plate 22, and the fire-facing surface plate 21 and the back fire surface plate 22 are respectively arranged on two sides of the groove depth direction of the channel steel. In general, the fire-facing surface plate 21 is thick and high in strength, and the threaded hole is less prone to crack propagation; the back fire face plate 22 is thin and low in strength, and cracks are easy to propagate at the threaded hole. Set up two channel-section steels side by side to one of them sets up towards back of the body hot side panel 22 with the first recess of the channel-section steel of external intercommunication, can effectively prevent that the less strong back of the body hot side panel 22 from taking place crack propagation. Two rows of channel steel are arranged, so that the fire-facing surface plate 21 and the back fire surface plate 22 are fixed through the two channel steel respectively, and mutual interference of first fasteners for fixing the channel steel two-side plugging plates is prevented. Meanwhile, the two channel steels are welded side by side, the sum of the leg widths of the two channel steels is the same as the thickness of the second supporting piece 121, the area between the two side plugging plates is filled with the filler, and the filler between the two side plugging plates can be supported. In addition, two channel-section steels weld side by side, and intensity is high, and non-deformable under the high temperature supports effectual second support piece 121 and shutoff panel.

Referring to fig. 1, 2, 4 and 5, the keel structure further includes an adjustment connector 13, and the second support member 121, an outer side of the third support member 122, and both ends of the fourth support member 112 are movably connected to the adjustment connector 13, and the adjustment connector 13 is adapted to be connected to the concrete frame.

The second support member 121, the third support member 122 and the fourth support member 112 are all stainless steel square steel, and have a hollow cavity in the middle, and referring to fig. 4 and 5, opposite side walls of the adjusting link 13 are provided with first sliding holes 131 extending along the length direction thereof. The connection manner between each supporting member and the adjusting connecting member 13 is the same, and the connection manner between the adjusting connecting member 13 and each supporting member will be described by taking the second supporting member 121 as an example. The adjusting connecting piece 13 is sleeved outside the second supporting piece 121, or the adjusting connecting piece 13 is arranged in a cavity of the second supporting piece 121 in a penetrating manner; the second fastener 132 is inserted through the first sliding hole 131 and the second supporting member 121 to connect the adjusting connector 13 and the second supporting member 121.

As best seen in fig. 4 and 5, the adjusting connecting member 13 is square and is inserted into the cavity of the second supporting member 121, and the adjusting connecting member 13 is inserted into and abuts against the inner wall of the second supporting member 121, so that the supporting strength of the second supporting member 121 can be increased. First sliding holes 131 are formed in two side plates, parallel to the second supporting piece 121, of the adjusting connecting piece 13, first mounting holes 133 are formed in a top plate, perpendicular to the side plates, of the adjusting connecting piece 13, when the adjusting connecting piece 13 penetrates through a cavity of the second supporting piece 121, the top plate of the adjusting connecting piece 13 is exposed out of the outer end face of the second supporting piece 121, the top plate of the adjusting connecting piece 13 is tightly attached to the concrete frame, and an anchor bolt penetrates through the first mounting holes 133 to fix the adjusting connecting piece 13 on the concrete frame.

Optionally, the second fastener 132 is a through bolt. Two side walls of the second supporting member 121 close to the first sliding hole 131 are provided with a second sliding hole 1211, and the second sliding hole 1211 extends along the length direction of the second supporting member 121. After the adjusting connector 13 is inserted into the cavity of the second supporting member 121, a through bolt is inserted through the first sliding hole 131 and the second sliding hole 1211 to connect the second supporting member 121 and the adjusting connector 13. The second supporting member 121 is heated to generate a thermal stress, and when the thermal stress increases to a certain strength, a side of the second supporting member 121 adjacent to the adjusting link 13 is extended outward, and the through bolt slides along the first sliding hole 131 to release the thermal stress in the second supporting member 121. After the thermal stress in the second supporting piece 121 is released, the pulling force on the channel steel and the first fastener is greatly reduced, and the occurrence of crack propagation of the plugging plate is effectively avoided. The provision of the second slide hole 1211 facilitates the provision of through bolts at different positions in the length direction of the second support member 121.

Referring to fig. 1, the channel steel is arranged in a transverse section, and a gap is reserved between each section of the channel steel for installing and accommodating the second fastener 132, so that the stress concentration phenomenon when the channel steel is heated can be avoided.

Referring to fig. 1, the lateral support assembly further includes a fifth support 113 and a sixth support 114, and the fifth support 113 and the sixth support 114 are both stainless square steel. The fifth supporting member 113 is disposed on one side of the first supporting member 111 in the width direction and is parallel to the first supporting member 111; and the fifth supporting members 113 are sectionally provided at both sides of the vertical supporting assembly. The sixth supporting member 114 is disposed on the other side of the first supporting member 111 in the width direction and is parallel to the first supporting member 111; and the sixth supports 114 are provided in sections on both sides of the vertical support assembly.

For example, the fifth supporter 113 is disposed above the channel as an upper beam of a keel structure, and the fifth supporter 113 is disposed at both sides of the second supporter 121 in two stages. The sixth supporting member 114 is disposed below the fourth supporting member 112 as a lower beam of the keel structure, and the sixth supporting member 114 is disposed at two sides of the third supporting member 122. The top and the bottom of the plugging plate are respectively fixed on the fifth supporting piece 113 and the sixth supporting piece 114 through self-tapping screws, the fifth supporting piece 113 and the sixth supporting piece 114 are arranged in a segmented mode in the length direction, thermal stress concentration can be avoided, thermal stress on the upper cross beam and the lower cross beam is reduced, finally, pulling on the upper plugging plate and the lower plugging plate is reduced, and crack expansion of the upper plugging plate and the lower plugging plate is prevented.

In the endurance test, referring to fig. 3, the fifth supporting member 113 is fixed to the upper beam 3 of the concrete frame by means of an anchor bolt and a nut, the sixth supporting member 114 is fixed to the lower beam 4 of the concrete frame by means of an anchor bolt and a nut, the second supporting member 121 and the third supporting member 122 are fixed to the upper beam 3 and the lower beam of the concrete frame by means of an adjusting connector 13 and an anchor bolt, respectively, and both ends of the fourth supporting member 112 are fixed to the left upright 5 of the concrete frame and the right upright 6 of the concrete frame by means of an adjusting connector 13 and an anchor bolt.

The inner end surface of the fifth supporting part 113 facing the second supporting part 121 has a gap with the outer wall of the second supporting part 121; after the outer end surface of the fifth supporting member 113 facing away from the second supporting member 121 is retracted into the outer end surface of the adjusting connector 13 on the fourth supporting member 112, that is, after the keel structure is installed on the concrete frame, a gap exists between the outer end surface of the fifth supporting member 113 and the left upright and the right upright of the concrete frame, and a free expansion space is provided for the fifth supporting member 113, so that the transverse thermal stress of the keel structure is released. The sixth supporting member 114 has the same structure as the fifth supporting member 113 and is engaged with the left and right columns 5 and 5 of the concrete framework.

As a first alternative embodiment of the embodiment 1, the cross-sectional shape of the adjusting link 13 may be the same as that of the second support member 121, the adjusting link 13 is provided with a first slide hole 131 and an outer end thereof is provided with a top plate to be connected to the concrete frame through the top plate, and the second support member 121 is provided with a second slide hole 1211. The adjusting connector 13 has a cavity for accommodating the second supporting member 121 therein, the adjusting connector 13 is directly sleeved on the second supporting member 121, the through bolt penetrates through the adjusting connector 13 and the sliding hole on the second supporting member 121, when the second supporting member 121 expands and extends, the end of the second supporting member 121 extends outward, and the second sliding hole 1211 provides the yielding space for the second supporting member 121 to slide outward along the through bolt.

As a modification, the adjusting connector 13 may also be plate-shaped or block-shaped, the first sliding hole 131 is disposed along the length direction, the adjusting connector 13 is inserted into the second supporting member 121 or stacked outside the second supporting member 121, the through bolt connects the second supporting member 121 and the adjusting connector 13, and when the second supporting member 121 generates thermal stress, the through bolt slides along the first sliding hole 131.

As a second alternative embodiment of example 1, only one channel may be provided, and a channel with wider leg width may be used to fill the area between the two plugging plates. At the moment, the first fasteners on the plugging plates on the two sides can be arranged on the channel steel in a vertically staggered mode. Or the first support 111 may be made by custom-machining the first support 111 instead of using a channel steel, as long as one side of the first support 111 has a deformation cavity for the first fastener to bend and deform; or the first grooves may be disposed on both sides of the first supporting member 111, and the structure of the first supporting member 111 is similar to an integral structure formed by butt-jointing two channel steels back to back.

Example 2

This embodiment provides an occlusion structure, as shown in fig. 2, comprising the keel structure and occlusion panel of embodiment 1. The middle part of the plugging plate is connected to the first support part 111 through a first fastener; the first groove and the blocking plate enclose a deformation cavity for the first fastener to deform.

The plugging structure of this structure, when fossil fragments structure produced thermal stress, the middle part of first fastener can be in the deformation chamber bending deformation, absorbs thermal stress, can effectively avoid the installation hole department of installing first fastener on the plugging panel to produce the crackle to effectively prevent crack propagation and plugging panel fracture.

Referring to fig. 2, the plugging plate includes a fire-facing plate 21 and a back-fire plate 22, the fire-facing plate 21 includes a fire-facing upper plate and a fire-facing lower plate, and the back-fire plate 22 includes a fire-facing upper plate and a fire-back lower plate. The upper part of the upper board of the fire-facing surface is fixed on the fifth supporting piece 113 through a self-tapping screw, the lower part of the upper board of the fire-facing surface is fixed on the first supporting piece 111 through a first fastening piece, the upper part of the lower board of the fire-facing surface is fixed on the first supporting piece 111 through a first fastening piece, the lower part of the lower board of the fire-facing surface is fixed on the sixth supporting piece 114 through a self-tapping screw, the lower board of the fire-facing surface and the upper board of the fire-facing surface are connected in a staggered joint mode, the splicing effect is good, and smoke leakage of the board surface can be prevented.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (13)

1. A keel structure is characterized by comprising

The transverse supporting assembly comprises a first supporting piece (111), at least one side of the first supporting piece (111) is provided with a first groove, and the plugging plate is suitable for being connected to the first supporting piece (111) through a first fastener; the first groove is suitable for enclosing a deformation cavity for the first fastener to deform with the plugging plate;

a vertical support assembly comprising a second support (121) and a third support (122), the second support (121) being connected to a first face of the first support (111), the third support (122) being connected to a second face of the first support (111), the first and second faces being opposite faces adjacent to the first groove slot; the second support (121), the third support (122) and the first support (111) are arranged in a staggered manner.

2. The keel structure of claim 1, wherein said first support (111) is a channel, said first recess being provided on one side of said first support (111).

3. The keel structure of claim 2, wherein there are two of said channels, two of said channels being disposed side-by-side along the channel depth of said first channel; the second supporting piece (121) and the third supporting piece (122) are respectively connected to the first surface and the second surface of the two channel steels.

4. The keel structure of any of claims 1-3, wherein the lateral support assembly further comprises a fourth support (112), the first support (111) being provided on the fourth support (112) and parallel to the fourth support (112);

the third supporting member (122) is disposed on the fourth supporting member (112) and connected to the first supporting member (111).

5. Keel structure according to any one of claims 1-3, further comprising at least one adjusting connection (13), said adjusting connection (13) being adapted to be connected to a concrete frame;

the sides of the second supporting part (121) or the third supporting part (122) which are far away from each other are movably connected to the adjusting connecting part (13).

6. Keel structure according to claim 5, characterized in that the second support (121) and the third support (122) have a cavity in the middle;

two opposite side walls of the adjusting connecting piece (13) are provided with first sliding holes (131) extending along the length direction of the adjusting connecting piece; the adjusting connecting piece (13) is sleeved outside the second supporting piece (121) or the third supporting piece (122), or the adjusting connecting piece (13) penetrates through the cavity;

a second fastener (132) penetrates through the first sliding hole (131) and the vertical support assembly to connect the adjusting connecting piece (13) and the vertical support assembly.

7. Keel structure according to claim 6, characterized in that the adjusting connection (13) is square-shaped, the adjusting connection (13) being arranged through the cavity.

8. Keel structure according to claim 5, characterized in that the sides of the second support (121) and the third support (122) remote from each other are provided with the adjustment connection (13).

9. Keel structure according to claim 4, characterized in that at least one of the two ends of the fourth support (112) is provided with an adjustment connection (13).

10. The keel structure of claim 9, wherein said lateral support assembly further comprises

A fifth support member (113) provided on one side in the width direction of the first support member (111) and parallel to the first support member (111); the fifth supporting pieces (113) are arranged on two sides of the vertical supporting component in a segmented mode.

11. The keel structure of claim 10, wherein said lateral support assembly further comprises

A sixth support member (114) provided on the other side in the width direction of the first support member (111) and parallel to the first support member (111); the sixth supporting pieces (114) are arranged on two sides of the vertical supporting component in a segmented mode.

12. The keel structure of claim 11, wherein said fifth support (113) has a gap from said vertical support assembly outer wall towards an inner end face of said vertical support assembly; the outer end face of the fifth support piece (113) facing away from the vertical support assembly is retracted into the outer end face of the adjusting connector (13) on the fourth support piece (112); and/or

The sixth support piece (114) is provided with a gap towards the inner end face of the vertical support assembly and the outer wall of the vertical support assembly; the outer end face of the sixth support piece (114) facing away from the vertical support assembly is retracted into the outer end face of the adjusting connector (13) on the fourth support piece (112).

13. An occlusion system, comprising a keel structure according to any one of claims 1-12 and an occlusion plate, the occlusion plate being connected in its middle part to the first support (111) by means of a first fastening means; the first groove and the blocking plate enclose a deformation cavity for the first fastener to deform.

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