CN115199865A - Bridge type closed heat preservation fixing device for rectangular air pipe flange and construction method - Google Patents
Bridge type closed heat preservation fixing device for rectangular air pipe flange and construction method Download PDFInfo
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- CN115199865A CN115199865A CN202210757462.2A CN202210757462A CN115199865A CN 115199865 A CN115199865 A CN 115199865A CN 202210757462 A CN202210757462 A CN 202210757462A CN 115199865 A CN115199865 A CN 115199865A
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- 238000004321 preservation Methods 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 88
- 238000005452 bending Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
- F16L59/184—Flanged joints
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Abstract
A bridge type closed heat preservation fixing device of a rectangular air pipe flange and a construction method thereof comprise a fixing piece, a middle heat preservation plate and a side fixing nail; the fixing piece comprises a supporting plate, a top fixing nail and a side heat-insulating plate; the supporting plate is in a door shape and spans the adjacent air pipe flanges; the supporting plate is connected with the two air pipe flanges through bolts; the side heat-insulation plate is arranged outside the air pipe flange; the side heat-insulation plate covers the side plate of the support plate at the position corresponding to the support plate; the middle insulation board is arranged annularly along the gap between the air pipe flanges at the two sides; the middle heat-insulation plate covers the top plate of the support plate at the position corresponding to the support plate; the top fixing nail is connected to the top plate of the supporting plate; the side fixing nails are connected on the side plates at two sides of the supporting plate. The invention solves the technical problems that the fixed heat-insulation board of the traditional fixing device is easy to fall off, glue is not environment-friendly and easy to age, construction is greatly influenced by temperature environment, air quantity and energy loss are easy to cause, and the heat-insulation molding appearance is poor.
Description
Technical Field
The invention belongs to the technical field of decoration and finishing engineering, and particularly relates to a bridge type closed heat preservation fixing device for a rectangular air pipe flange and a construction method.
Background
The rock wool board is adopted as the heat insulation material of the smoke prevention and exhaust system, the fire prevention and heat insulation system and the air conditioning system, the social influence of the project is large, the quality target is to ensure the Luban prize, the requirements on fire prevention and energy saving efficiency are high, and the requirements on green and environment protection are high; the sticky nail surface of taking root unevenness, the heated board of laying here is difficult for leveling, and the trilateral heated board of flange combines and easily produces the gap and cause amount of wind and energy loss, and the shaping outward appearance that keeps warm is poor. Based on the above, a research team organizes to research a bridge type closed heat preservation fixing device of a rectangular air pipe flange and a construction method.
Disclosure of Invention
The invention aims to provide a bridge type closed heat preservation fixing device for a rectangular air pipe flange and a construction method, and aims to solve the technical problems that a heat preservation plate fixed by a traditional fixing device is easy to fall off, glue is not environment-friendly and easy to age, construction is greatly influenced by a temperature environment, air quantity and energy loss are easy to cause, and the heat preservation forming appearance is poor.
In order to achieve the purpose, the invention adopts the following technical scheme.
A bridge type closed heat preservation fixing device for rectangular air pipe flanges is used for fixedly connecting the air pipe flanges of two adjacent air pipes; padding is filled between the adjacent air pipe flanges; the bridge type closed fixing device comprises a fixing piece, a middle insulation board and a side fixing nail; the fixing pieces are arranged in a group and are arranged on four sides of the air pipe flange at intervals along the circumferential direction; each fixing piece comprises a supporting plate, a top fixing nail and a side heat-insulating plate; the supporting plate is in a door shape and spans over the adjacent air pipe flanges, a side plate on one side of the supporting plate is positioned outside the air pipe flange on one side, and a side plate on the other side of the supporting plate is positioned outside the air pipe flange on the other side; vertical bar holes are respectively arranged on the side plates at the two sides of the supporting plate; the supporting plate is connected with the two air pipe flanges through bolts penetrating through the vertical bar holes; the two side heat-insulation plates are respectively arranged on the outer sides of the air pipe flanges on the two sides; each side heat-insulation plate is rectangular, and the side heat-insulation plates cover the side plates of the supporting plates at the positions corresponding to the supporting plates; the middle insulation board is arranged annularly along the gap between the air pipe flanges at two sides, and two side edges of the middle insulation board are respectively and correspondingly connected with the side insulation boards at two sides; the middle heat-insulation plate covers the top plate of the support plate at the position corresponding to the support plate; the top fixing nails are connected to the top plate of the supporting plate and penetrate through the corresponding middle insulation plates; the side fixing nails are connected to the side plates on the two sides of the supporting plate and penetrate through the side heat-insulation plates on the corresponding side; the end parts of the top fixing nail and the side fixing nail are bent and pressed on the corresponding heat insulation plates; gaskets are respectively arranged between the end part of the top fixing nail, the end part of the side fixing nail and the heat insulation plate on the corresponding side.
Preferably, the distance between the vertical hole and the top of the side plate of the support plate ranges from 8mm to 12mm; the width of the vertical hole ranges from 8mm to 12mm, and the length of the vertical hole ranges from 18mm to 22mm.
Preferably, at least two fixing pieces are arranged on each edge of the air pipe flange; the distance between two adjacent fixing pieces on the same edge is not more than 300mm.
Preferably, the top fixing nail is arranged at the central position of the top surface of the supporting plate; the lateral part staple is provided with on the curb plate of each side of backup pad and is no less than two, and the lateral part staple of backup pad each side is located the upper and lower side position in vertical strip hole respectively.
Preferably, the length of the top plate of the support plate ranges from 23mm to 27mm, the width of the support plate ranges from 18mm to 22mm, and the length of the side plate of the support plate ranges from 38mm to 42mm.
Preferably, the thickness of the intermediate heat-insulating plate is 20mm to 50mm; the width of the middle heat-insulation plate is adapted to the length of the top plate of the supporting plate; the thickness of the side heat-insulating plate ranges from 20mm to 50mm, and the width of the side heat-insulating plate ranges from 20mm to 50mm; the length of the side plate of the supporting plate is adaptive.
Preferably, the length of the top fixing nail is \ +10mm, and the diameter of the top fixing nail is not less than 3mm; the length of the side fixing nail is 240 +10mm, and the diameter of the side fixing nail is not less than 3mm; wherein, 240is the thickness of the side insulation board and the middle insulation board.
Preferably, the outer surfaces of the support plates on the same side lie in the same plane.
A construction method of a bridge type closed heat preservation fixing device of a rectangular air pipe flange comprises the following steps.
Step one, lofting of a support plate: lofting is performed according to a lofting drawing of the support plate in the design.
Step two, setting vertical bar holes: according to a large sample drawing of the vertical bar holes in the support plate in the design drawing, the positions, close to the end parts, on the plate surface of the support plate are respectively provided with the vertical bar holes; the vertical bar hole is centered along the width direction of the support plate.
Step three, bending the supporting plate: the supporting plate is bent into a door-shaped frame body.
Step four, manufacturing a single fixing piece: the top fixing nail is welded at the center of the top surface of the supporting plate, the side fixing nails are respectively welded on the two side surfaces of the supporting plate, and the top fixing nail and the side fixing nails which are welded are subjected to anti-corrosion treatment.
Step five, mounting a fixing piece: the fixing pieces are arranged on four sides of the air pipe flange along the circumferential direction according to the designed intervals, the fixing pieces are fixed with the air pipe flange through bolts, and the bolts penetrate through side plates on two sides of the fixing pieces and are fixed through gaskets.
Step six, blanking of the middle heat-insulation plate and the side heat-insulation plates: and cutting the heat-insulating plates according to the specifications of the designed side heat-insulating plates and the designed middle heat-insulating plate.
Step seven, mounting the middle insulation board: with middle heated board along the tuber pipe flange between the clearance of both sides, be the hoop setting, make middle heated board cover on the roof of backup pad in the position department that corresponds the backup pad to make the top staple pass in the middle heated board.
Step eight, mounting the lateral heat-insulation plate: the lateral heat-insulation plates are arranged in a rectangular mode along the outer surfaces of the air pipe flanges, so that the lateral heat-insulation plates cover the side plates of the supporting plates at positions corresponding to the supporting plates, and the lateral fixing nails penetrate through the lateral heat-insulation plates.
And step nine, arranging gaskets at the end parts of the top fixing nails and the side fixing nails, bending the end parts of the top fixing nails and the side fixing nails, and pressing the end parts of the top fixing nails and the side fixing nails on the corresponding gaskets, so that the construction is finished.
Preferably, the specific installation method of the fixing piece in the fifth step is as follows: at least two fixing pieces are arranged on each side edge of the air pipe flange, and the distance between every two adjacent fixing pieces on the same side is not more than 300mm; the outer surfaces of the supporting plates on the same edge are in the same plane.
Compared with the prior art, the invention has the following characteristics and beneficial effects.
1. In a conventional construction method, a sticking heat-preservation nail is usually stuck to a surface layer of an air pipe flange, the sticking surface of the air pipe flange consists of two angle steel edges and a gap of an intermediate padding, the surface layer is corrugated and has a gap, and the sticking nail is not firm in rooting and easy to fall off; the invention adopts the door-shaped supporting plate, the top surface of the supporting plate is flat, so that the heat-insulating plate is laid smoothly, the three surfaces of the fixing piece are provided with the welded fixing nails to replace the traditional fixing mode of the sticking nails, so that the heat-insulating plate is firmly fixed, the service life is long, and the construction quality is improved.
2. The air pipe flange is provided with at least two fixing pieces on one side, and the top surfaces of more than two door-shaped supporting plates are used for supporting according to the principle that two points are in one line, so that the heat insulation plate can be ensured to be straight, and the attractive effect is realized.
3. The four sides of the air pipe flange are provided with the fixing pieces, and the fixing heights of the four side fixing pieces are adjusted, so that the four sides form a closed flat structure, the butt joint of seams is tight, the appearance is attractive, and the effective utilization of air volume and energy is protected; in addition, the side surface of the supporting plate is provided with the vertical bar hole, so that the leveling of a bridge type closed device is facilitated, and the requirement of consistent elevation is met by screwing the gasket and the nut.
4. According to the construction method of the bridge type closed fixing device, the welding nails are adopted to fix the heat insulation board, so that the heat insulation board is not influenced by the environment and is not required by the material intermission time, and the construction progress is guaranteed; the phenomenon that the insulation board falls off due to glue failure does not exist by adopting a welding method, the joint of the insulation board and the air pipe flange is tightly attached, the dissipation of energy in the air pipe is reduced, and the insulation effect is attractive; meanwhile, the invention reduces the use amount of the sticking nails and glue, reduces the labor cost for repairing the insulation board for multiple times after falling off, and reduces the maintenance cost in later operation.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the bridge type closed fixing device for fixedly connecting the air duct flanges of two adjacent air ducts.
Fig. 2 is a schematic structural view of the middle insulation board and the side insulation board outside the fixing member in the invention.
Fig. 3 is a schematic view of the structure of the present invention in which the fixing member is disposed between adjacent duct flanges.
Fig. 4 is a schematic view of a node structure of the fixing member and the intermediate insulation board in the present invention.
Fig. 5 is a schematic structural view of the fixing member of the present invention.
Fig. 6 is a schematic view showing the unfolded structure of the support plate according to the present invention.
Fig. 7 is a schematic view of the structure of the support plate in the present invention.
Reference numerals: 1-fixing piece, 1.1-supporting plate, 1.2-top fixing nail, 1.3-side fixing nail, 2-middle heat-insulating plate, 3-vertical strip hole, 4-air pipe flange, 5-padding, 6-air pipe, 7-side heat-insulating plate, 8-bolt and 9-gasket.
Detailed Description
As shown in fig. 1-7, the bridge type closed thermal insulation fixing device for rectangular air duct flanges is used for fixedly connecting the air duct flanges 4 of two adjacent air ducts 6; padding 5 is filled between the adjacent air duct flanges 4; the bridge type closed fixing device comprises a fixing piece 1, a middle heat insulation board 2 and side heat insulation boards 7; the fixing pieces 1 are arranged in a group and are arranged on four sides of the air pipe flange 4 at intervals along the circumferential direction; each fixing piece 1 comprises a supporting plate 1.1, a top fixing nail 1.2 and a side fixing nail 1.3; the supporting plate 1.1 is in a door shape and spans over the adjacent air pipe flanges 4, a side plate on one side of the supporting plate 1.1 is positioned on the outer side of the air pipe flange 4 on one side, and a side plate on the other side of the supporting plate 1.1 is positioned on the outer side of the air pipe flange 4 on the other side; vertical bar holes 3 are respectively arranged on the side plates at the two sides of the supporting plate 1.1; the supporting plate 1.1 is connected with the two air pipe flanges 4 through bolts 8 penetrating through the vertical strip holes 3; the two side heat-insulation plates 7 are respectively arranged on the outer sides of the air pipe flanges 4 on the two sides; each side heat insulation plate 7 is rectangular, and the side heat insulation plate 7 covers the side plate of the support plate 1.1 at the position corresponding to the support plate 1.1; the middle insulation board 2 is annularly arranged along the gap between the air pipe flanges 4 at the two sides, and the two side edges of the middle insulation board 2 are respectively and correspondingly connected with the side insulation boards 7 at the two sides; the middle heat-insulation plate 2 covers the top plate of the support plate 1.1 at the position corresponding to the support plate 1.1; the top fixing nail 1.2 is connected to the top plate of the support plate 1.1, and the top fixing nail 1.2 penetrates through the corresponding middle insulation plate 2; the lateral fixing nails 1.3 are connected to the lateral plates on the two sides of the supporting plate 1.1, and the lateral fixing nails 1.3 penetrate through the lateral heat-insulating plate 7 on the corresponding side; the end parts of the top fixing nail 1.2 and the side fixing nail 1.3 are bent and pressed on the corresponding heat insulation boards; gaskets 9 are respectively padded between the end part of the top fixing nail 1.2, the end part of the side fixing nail 1.3 and the heat insulation plate on the corresponding side.
In the embodiment, the distance between the vertical hole 3 and the top of the side plate of the support plate 1.1 ranges from 8mm to 12mm; the width of the vertical bar hole 3 ranges from 8mm to 12mm, and the length of the vertical bar hole 3 ranges from 18mm to 22mm.
In this embodiment, at least two fixing members 1 are arranged on each side of the air pipe flange 4; the distance between two adjacent fixing pieces 1 on the same edge is not more than 300mm.
In this embodiment, the top fixing nail 1.2 is arranged at the center of the top surface of the support plate 1.1; the lateral fixing nails 1.3 are arranged on the lateral plates of each side of the supporting plate 1.1 at least two, and the lateral fixing nails 1.3 of each side of the supporting plate 1.1 are respectively positioned at the upper side and the lower side of the vertical bar holes 3.
In the embodiment, the length of the top plate of the support plate 1.1 ranges from 23mm to 27mm, the width of the support plate 1.1 ranges from 18mm to 22mm, and the length of the side plate of the support plate 1.1 is not less than 38mm to 42mm.
In the embodiment, the thickness of the intermediate insulation board 2 is from 20mm to 50mm; the width of the middle heat-insulation plate 2 is adapted to the length of the top plate of the support plate 1.1; the thickness of the side heat insulation board 7 is from 20mm to 50mm, and the width of the side heat insulation board 7 is from 20mm to 50mm; the length of the side plates of the supporting plate 1.1 is adapted.
In the embodiment, the length of the top fixing nail 1.2 is 240 +10mm, and the diameter of the top fixing nail 1.2 is not less than 3mm; the length of the side fixing nail 1.3 is 240 +10mm, and the diameter of the side fixing nail 1.3 is not less than 3mm; wherein, 240is the thickness of the side heat-insulating plate 7 and the middle heat-insulating plate 2.
In this embodiment, the outer surfaces of the support plates 1.1 on the same edge are located in the same plane.
The construction method of the bridge type closed heat preservation fixing device for the rectangular air pipe flange comprises the following steps.
Step one, lofting of a support plate 1.1: the design method comprises the following steps of lofting according to a lofting drawing of a support plate 1.1 in design, cutting a grown rectangular strip-shaped support plate 1.1 by adopting a galvanized steel plate material with the thickness of 0.5-1.2 mm, determining the position of a broken line by using a marking pen, and dividing the strip-shaped support plate 1.1 into three parts.
Step two, setting the vertical bar holes 3: according to a large sample drawing of a vertical bar hole 3 on a support plate 1.1 in a design drawing, the vertical bar hole 3 is respectively arranged on the plate surface of the support plate 1.1 and at the position close to the end part; the wicket hole 3 is centered along the width of the support plate 1.1.
Step three, bending the support plate 1.1: and (5) bending the support plate 1.1 into a door-shaped frame body according to the folding line in the step one.
Step four, manufacturing a single fixing piece 1: welding a top fixing nail 1.2 at the central position of the top surface of the support plate 1.1, respectively welding side fixing nails 1.3 at two side surfaces of the support plate 1.1, and performing anticorrosive treatment on the welded top fixing nail 1.2 and the welded side fixing nails 1.3; the top fixing nail 1.2 and the side fixing nail 1.3 are both made of iron wires with the diameter not less than 3mm and the length (24010) mm.
Step five, mounting the fixing piece 1: the fixing piece 1 is arranged on four sides of the air pipe flange 4 along the circumferential direction according to the designed distance, the fixing piece 1 is fixed with the air pipe flange 4 through bolts 8, and the bolts 8 penetrate through side plates on two sides of the fixing piece 1 and are additionally provided with gaskets 9 for fixing.
Step six, blanking of the middle heat-insulating plate 2 and the side heat-insulating plate 7: and cutting the insulation boards according to the specifications of the side insulation boards 7 and the middle insulation board 2.
Step seven, mounting the intermediate heat-insulating plate 2: with middle heated board 2 along the tuber pipe flange 4 between the clearance of both sides, be the hoop setting, make middle heated board 2 cover on the roof of backup pad 1.1 in the position department that corresponds backup pad 1.1 to make top staple 1.2 pass in the middle heated board 2.
Step eight, mounting the side heat-insulation plate 7: set up lateral part heated board 7 for the rectangle along 4 external surfaces of tuber pipe flange, make lateral part heated board 7 cover on the curb plate of backup pad 1.1 in the position department that corresponds backup pad 1.1 to make lateral part staple 1.3 pass from lateral part heated board 7.
Step nine, arranging gaskets 9 at the end parts of the top fixing nails 1.2 and the side fixing nails 1.3, then bending the end parts of the top fixing nails 1.2 and the side fixing nails 1.3, and pressing the end parts on the corresponding gaskets 9, and finishing the construction.
In this embodiment, the specific installation method of the fixing member 1 in the fifth step is as follows: at least two fixing pieces 1 are arranged on each side edge of the air pipe flange 4, and the distance between every two adjacent fixing pieces 1 on the same side is not more than 300mm; the outer surfaces of the support plates 1.1 on the same edge are in the same plane.
In this embodiment, in the sixth step, the horizontal edge blanking size of the side heat-insulating plate 7 is as follows: (A +2a +2 \ 240) × 60 × 240; the blanking size of the vertical edge of the side heat-insulating plate 7 is as follows: (B + 2B) × 60 × 240; a is the length of the horizontal edge of the air pipe flange 4, 240is the thickness of the side heat-insulating plate 7, B is the length of the vertical edge of the air pipe flange 4, A is the length of the long edge of the air pipe 6, and B is the length of the short edge of the air pipe 6.
In the embodiment, fasteners are further arranged between two adjacent air pipe flanges 4 at intervals along the circumferential direction; the fastener is a connecting bolt; the connecting bolts close to the four corners of the air pipe flange 4 are shared with the bolts 8 of the fixed fixing part 1.
In this embodiment, the padding is made of rubber asbestos or a sealing adhesive tape.
Claims (10)
1. A bridge type closed heat preservation fixing device for rectangular air pipe flanges is used for fixedly connecting air pipe flanges (4) of two adjacent air pipes (6); padding (5) is filled between the adjacent air pipe flanges (4); the method is characterized in that: the bridge type closed fixing device comprises a fixing piece (1), a middle heat insulation plate (2) and side heat insulation plates (7); the fixing pieces (1) are arranged in a group and are arranged on four sides of the air pipe flange (4) at intervals along the circumferential direction; each fixing piece (1) comprises a support plate (1.1), a top fixing nail (1.2) and a side fixing nail (1.3); the supporting plate (1.1) is door-shaped and spans over the adjacent air pipe flanges (4), a side plate on one side of the supporting plate (1.1) is positioned on the outer side of the air pipe flange (4) on one side, and a side plate on the other side of the supporting plate (1.1) is positioned on the outer side of the air pipe flange (4) on the other side; vertical bar holes (3) are respectively arranged on the side plates at the two sides of the supporting plate (1.1); the supporting plate (1.1) is connected with the two air pipe flanges (4) through bolts (8) penetrating through the vertical bar holes (3); the two side heat-insulation plates (7) are respectively arranged at the outer sides of the air pipe flanges (4) at the two sides; each side heat-insulation plate (7) is rectangular, and the side heat-insulation plates (7) cover the side plates of the support plates (1.1) at the positions corresponding to the support plates (1.1); the middle heat-insulation plate (2) is annularly arranged along the gap between the air pipe flanges (4) at the two sides, and the two side edges of the middle heat-insulation plate (2) are respectively and correspondingly connected with the side heat-insulation plates (7) at the two sides; the middle heat-insulation plate (2) covers the top plate of the support plate (1.1) at the position corresponding to the support plate (1.1); the top fixing nail (1.2) is connected to the top plate of the support plate (1.1), and the top fixing nail (1.2) penetrates through the corresponding middle heat insulation plate (2); the lateral fixing nails (1.3) are connected to the lateral plates on the two sides of the support plate (1.1), and the lateral fixing nails (1.3) penetrate through the lateral heat-insulation plate (7) on the corresponding side; the end parts of the top fixing nail (1.2) and the side fixing nail (1.3) are bent and pressed on the corresponding heat-insulation plates; gaskets (9) are respectively padded between the end part of the top fixing nail (1.2), the end part of the side fixing nail (1.3) and the heat insulation plate on the corresponding side.
2. The bridge type closed heat preservation fixing device of the rectangular air pipe flange according to claim 1, characterized in that: the distance between the vertical strip hole (3) and the top of the side plate of the support plate (1.1) ranges from 8mm to 12mm; the width of the vertical hole (3) ranges from 8mm to 12mm, and the length of the vertical hole (3) ranges from 18mm to 22mm.
3. The bridge type closed heat preservation fixing device of rectangular tuber pipe flange of claim 1, characterized in that: at least two fixing pieces (1) are arranged on each edge of the air pipe flange (4); the distance between two adjacent fixing pieces (1) on the same edge is not more than 300mm.
4. The bridge type closed heat preservation fixing device of rectangular tuber pipe flange of claim 1, characterized in that: the top fixing nail (1.2) is arranged in the center of the top surface of the support plate (1.1); the side fixing nails (1.3) are arranged on the side plate of each side of the supporting plate (1.1) at least two, and the side fixing nails (1.3) of each side of the supporting plate (1.1) are respectively positioned at the upper side and the lower side of the vertical strip hole (3).
5. The bridge type closed heat preservation fixing device of the rectangular air pipe flange according to claim 1, characterized in that: the length of the top plate of the support plate (1.1) ranges from 23mm to 27mm, the width of the support plate (1.1) ranges from 18mm to 22mm, and the length of the side plate of the support plate (1.1) ranges from 38mm to 42mm.
6. The bridge type closed heat preservation fixing device of the rectangular air pipe flange according to claim 1, characterized in that: the thickness of the intermediate insulation board (2) is from 20mm to 50mm; the width of the middle heat-insulation plate (2) is adapted to the length of the top plate of the support plate (1.1); the thickness of the side heat insulation board (7) ranges from 20mm to 50mm, and the width of the side heat insulation board (7) ranges from 20mm to 50mm; the length of the side plates of the supporting plate (1.1) is adaptive.
7. The bridge type closed heat preservation fixing device of the rectangular air pipe flange according to claim 1, characterized in that: the length of the top fixing nail (1.2) is 240 +10mm, and the diameter of the top fixing nail (1.2) is not less than 3mm; the length of the side fixing nail (1.3) is 240 +10mm, and the diameter of the side fixing nail (1.3) is not less than 3mm; wherein, 240is the thickness of the side heat-insulating plate (7) and the middle heat-insulating plate (2).
8. Bridge type closed thermal insulation fixing device for rectangular air duct flanges according to claim 1, characterized in that the outer surfaces of the same side support plate (1.1) are located in the same plane.
9. The construction method of the bridge type closed heat preservation fixing device for the rectangular air pipe flange as claimed in any one of claims 1 to 8 is characterized by comprising the following steps:
step one, lofting of a support plate (1.1): lofting according to a lofting drawing of a support plate (1.1) in design;
step two, setting the vertical bar holes (3): according to a large sample drawing of a vertical bar hole (3) on a support plate (1.1) in a design drawing, the positions, close to the end part, on the plate surface of the support plate (1.1) are respectively provided with the vertical bar hole (3); the vertical bar hole (3) is centered along the width direction of the support plate (1.1);
step three, bending the support plate (1.1): bending the support plate (1.1) into a door-shaped frame body;
step four, manufacturing a single fixing piece (1): welding a top fixing nail (1.2) at the central position of the top surface of the support plate (1.1), respectively welding side fixing nails (1.3) at two side surfaces of the support plate (1.1), and performing anticorrosive treatment on the welded top fixing nail (1.2) and side fixing nails (1.3);
step five, mounting the fixing piece (1): the fixing pieces (1) are arranged on four sides of the air pipe flange (4) along the circumferential direction according to the designed intervals, the fixing pieces (1) are fixed with the air pipe flange (4) through bolts (8), and the bolts (8) penetrate through side plates on two sides of the fixing pieces (1) and are fixed through gaskets (9);
step six, blanking of the middle heat-insulation board (2) and the side heat-insulation board (7): cutting the insulation boards according to the specifications of the side insulation boards (7) and the middle insulation board (2);
step seven, installing the intermediate heat-insulation board (2): the middle heat-insulation board (2) is arranged annularly along the gap between the air pipe flanges (4) on the two sides, so that the middle heat-insulation board (2) covers the top plate of the support plate (1.1) at the position corresponding to the support plate (1.1), and the top fixing nail (1.2) penetrates through the middle heat-insulation board (2);
step eight, mounting the side heat-insulation plate (7): arranging a side heat-insulating plate (7) in a rectangular shape along the outer surface of the air pipe flange (4), covering the side heat-insulating plate (7) on a side plate of the supporting plate (1.1) at a position corresponding to the supporting plate (1.1), and enabling a side fixing nail (1.3) to penetrate through the side heat-insulating plate (7);
and step nine, arranging gaskets (9) at the end parts of the top fixing nails (1.2) and the side fixing nails (1.3), bending the end parts of the top fixing nails (1.2) and the side fixing nails (1.3), and pressing the end parts on the corresponding gaskets (9), so that the construction is finished.
10. The construction method of the bridge type closed heat preservation fixing device of the rectangular air pipe flange as claimed in claim 9, wherein the concrete method for installing the fixing piece (1) in the fifth step is as follows: at least two fixing pieces (1) are arranged on each side edge of the air pipe flange (4), and the distance between every two adjacent fixing pieces (1) on the same side is not more than 300mm; the outer surfaces of the supporting plates (1.1) on the same edge are in the same plane.
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| CN115199865B CN115199865B (en) | 2023-10-27 |
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| US20110113719A1 (en) * | 2007-07-26 | 2011-05-19 | Gordon James Harris | Fixing |
| CN106439395A (en) * | 2016-11-16 | 2017-02-22 | 南通安装集团股份有限公司 | Method for constructing insulating layer in air duct made of iron sheet |
| CN108980488A (en) * | 2018-09-26 | 2018-12-11 | 中建七局第二建筑有限公司 | Flange and construction for air hose connection |
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| CN110566726A (en) * | 2019-09-29 | 2019-12-13 | 中国铁路设计集团有限公司 | Fire prevention integrative compound tuber pipe that keeps warm |
| CN212776098U (en) * | 2020-06-22 | 2021-03-23 | 青岛盛腾法兰有限公司 | Heat-insulating connecting flange of fire-resistant ventilation air duct |
| CN215568981U (en) * | 2021-04-27 | 2022-01-18 | 中建八局第三建设有限公司 | Square tuber pipe insulation construction |
| CN217762525U (en) * | 2022-06-30 | 2022-11-08 | 中建二局第三建筑工程有限公司 | Heat preservation connection structure of tuber pipe flange |
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2022
- 2022-06-30 CN CN202210757462.2A patent/CN115199865B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110113719A1 (en) * | 2007-07-26 | 2011-05-19 | Gordon James Harris | Fixing |
| CN106439395A (en) * | 2016-11-16 | 2017-02-22 | 南通安装集团股份有限公司 | Method for constructing insulating layer in air duct made of iron sheet |
| CN108980488A (en) * | 2018-09-26 | 2018-12-11 | 中建七局第二建筑有限公司 | Flange and construction for air hose connection |
| CN209278731U (en) * | 2018-10-17 | 2019-08-20 | 北京航信伟业保温科技有限公司 | Magnalium matter air hose heat-insulation system and ventilation shaft |
| CN110566726A (en) * | 2019-09-29 | 2019-12-13 | 中国铁路设计集团有限公司 | Fire prevention integrative compound tuber pipe that keeps warm |
| CN212776098U (en) * | 2020-06-22 | 2021-03-23 | 青岛盛腾法兰有限公司 | Heat-insulating connecting flange of fire-resistant ventilation air duct |
| CN215568981U (en) * | 2021-04-27 | 2022-01-18 | 中建八局第三建设有限公司 | Square tuber pipe insulation construction |
| CN217762525U (en) * | 2022-06-30 | 2022-11-08 | 中建二局第三建筑工程有限公司 | Heat preservation connection structure of tuber pipe flange |
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| CN115199865B (en) | 2023-10-27 |
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