Assembly type integrated fireproof air pipe for purification

Abstract

The utility model relates to an assembly type integrated fireproof air pipe for purification, which comprises a pipe body surrounded by four pipe plates in the circumferential direction, every two adjacent pipe plates in the circumferential direction are clamped through a pipe plate connecting piece, each pipe plate comprises an inner plate and an outer plate, rock wool is filled between the inner plate and the outer plate, each side of the periphery of each pipe plate is clamped with a side edge cover, and the side edge covers are arranged in the pipe plates. And a locking screw penetrates through the tube plate connecting piece, penetrates into the tube plate outer plate and is locked, and the locking screw does not extend out of the tube plate inner plate and extends into the air tube. The air duct is simple and stable in structure, convenient to assemble and capable of effectively preventing fibers of inorganic materials such as rock wool in the tube plate from falling off and affecting the use cleanliness level of the air duct.

Description

Technical Field

[0001] The utility model relates to the field of air ducts, and specifically relates to an assembled integrated fireproof air duct for purification. Background Art

[0002] With the continuous improvement of the construction structure and requirements of air ducts, high requirements such as generality, convenient installation, and adaptability are put forward for air ducts. The applicant's series of heat-resistant air ducts applied for earlier, such as 2019223910940, 2020205560566, 2020212467237, 2022219644091, 2022220159595, etc., have been optimized and designed according to different usage occasions and various performance requirements. When used in the purification and clean area at present, when the requirements of light weight and fire prevention need to be considered, inorganic materials such as rock wool filled in the pipe plate are affected by internal and external wind pressures and other long-term effects during long-term use. When the rock wool is filled in the pipe plate and not sealed at the edge, it is very easy to cause fiber-like materials to fall off from the pipe plate, and there are similar fiber-like materials in the external and internal air supply, affecting the cleanliness level of the usage occasion; at the same time, when bolts and screws are passed through the inner plate of the pipe plate, impurities also fall off from the bolt or screw through-hole positions after long-term use, affecting the cleanliness level. Summary of the Invention

[0003] The utility model provides an assembled integrated fireproof air duct for purification, which has a simple and stable structure, is convenient for assembly, and can effectively prevent the fiber shedding of inorganic materials such as rock wool in the pipe plate from affecting the cleanliness level of the air duct.

[0004] The technical solution adopted by the utility model is: an assembled integrated fireproof air duct for purification, including a pipe body surrounded by four pipe plates in the circumferential direction, the two circumferentially adjacent pipe plates are clamped by pipe plate connectors, the pipe plate includes an inner plate and an outer plate, and rock wool is filled between the inner plate and the outer plate. The feature is that: on each side of the outer circumference of the pipe plate, a side cover is clamped.

[0005] The cross-section of the side cover is a U-shaped with a single-side opening, and the two single sides of the single-side opening are clamped inside or outside the pipe plate.

[0006] The single-side opening of the U-shaped is clamped outside the inner and outer plates of the pipe plate, and a sunk platform is arranged on the outer sides of the inner and outer plates. The two single sides of the single-side opening are clamped in the sunk platform and are flush with the outer sides of the inner and outer plates; or the single-side opening of the U-shaped is clamped inside the inner and outer plates of the pipe plate, and a sunk platform is arranged on the inner sides of the inner and outer plates. The two single sides of the single-side opening are clamped in the sunk platform and are flush with the inner sides of the inner and outer plates.

[0007] On the inner wall or outer wall of the single-side opening side of the U-shaped, multiple clamping ribs or clamping grooves are arranged along the extension direction of the cross-section of the side cover, and multiple pipe plate grooves or pipe plate ribs corresponding to the clamping ribs or clamping grooves are arranged on the outer side or inner side of the pipe plate.

[0008] The U-shaped single-sided opening is attached to the inside or outside of the tube sheet via a fireproof adhesive layer, or the U-shaped single-sided opening is attached to the outside of the rock wool via a fireproof adhesive layer, and / or the bottom of the U-shaped single-sided opening is attached to the outside of the rock wool via a fireproof adhesive layer.

[0009] The inner and outer plates are made of inorganic refractory materials. The inner and outer plates are connected by multiple connecting columns and / or the inner and / or outer plates are provided with multiple or mesh-like reinforcing ribs on their inner walls.

[0010] The horizontally arranged tube sheet of two adjacent tube sheets is snapped between the upper and lower sides of the horizontal snap of the tube sheet connector and locked by a locking screw passing through the upper side of the snap. The vertically arranged tube sheet of the two adjacent tube sheets is snapped between the inner and outer sides of the vertical snap of the tube sheet connector and locked by a locking screw passing through the outer side of the snap. The lower side of the horizontal snap and the upper bottom side of the vertical snap are shared. The outer bottom side of the horizontal snap and the outer side of the vertical snap are connected in a straight line.

[0011] Flanges are installed at both the front and rear ends of the pipe body. The inner opening of the flange is snapped into the end of the pipe body and locked to the pipe plate connector or pipe plate at the end of the pipe body by a locking screw passing through the outer wall of the inner opening.

[0012] The locking screw does not penetrate into the inner plate of the tube sheet, or the locking screw does not penetrate the inner plate of the tube sheet.

[0013] The locking screw is inserted into the outer side and / or the inner side of the U-shaped single-sided opening; or the locking screw is inserted into the connecting column between the inner and outer plates or into the reinforcing rib of the inner wall of the inner plate or outward through the reinforcing rib of the inner wall of the inner plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. The outer perimeter of the tube sheet, which is filled with rock wool between the inner and outer panels, is sealed with a side cover, which can effectively prevent rock wool fibers from falling off and ensure the cleanliness of the air duct in clean environments. The horizontal and vertical clamps of the tube sheet connectors and the flange inner clamps of the tube sheet are all locked with locking screws that do not penetrate the inner panel, which effectively prevents rock wool fibers from falling off from the connection holes and effectively ensures cleanliness.

[0016] 2. The side cover adopts a U-shaped single-sided opening to clamp the inner and outer plates of the tube sheet. Combined with external clamping and fireproof adhesive layer connection, the clamping ribs or clamping grooves correspond to the tube sheet grooves or tube sheet ribs, which can prevent the side cover from slipping on the tube sheet, help improve clamping stability and ensure the sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1Schematic diagram of the assembly of two adjacent tube sheets (section AA).

[0019] Figure 3 This is a schematic diagram of the tube sheet connector structure;

[0020] Figure 4 This is a schematic diagram of the tube sheet structure in Embodiment 1;

[0021] Figure 5 This is a schematic diagram of the tube sheet structure in Embodiment 2;

[0022] Figure 6 This is a schematic diagram of the tube sheet structure in Embodiment 3.

[0023] In the diagram: 1. Pipe body; 2. Pipe sheet; 3. Plate; 4. Reinforcing rib; 5. Rock wool; 6. Pipe sheet connector; 7. Horizontal bayonet; 71. Upper side; 72. Lower side; 73. Outer bottom edge; 8. Vertical bayonet; 81. Inner side; 82. Outer side; 83. Upper bottom edge; 9. Metal flange; 91. Flange inner opening; 92. Flat flange face; 10. Outer step; 11. Side cover; 12. Opening single side; 13. Corner connecting plate; 14. Locking screw; 15. Inner step; 16. Connecting column. Detailed Implementation

[0024] The following description, in conjunction with the accompanying drawings and embodiments, provides further details.

[0025] Figure 1-4 The first embodiment shown describes a prefabricated integrated fireproof air duct for purification, comprising a duct body 1 formed by four circumferentially arranged tube plates 2, tube plate connectors 6, and metal flanges 9. Each tube plate 2 includes inner and outer plates 3. The inner wall of the inner plate 3 is provided with transverse or longitudinal reinforcing ribs 4, and rock wool 5 is filled between the inner and outer plates 3. Two adjacent circumferentially arranged tube plates are snapped together by the tube plate connectors 6, which consist of transverse latches 7 and vertical latches 8. The transversely arranged tube plates of the two adjacent tube plates are snapped between the upper and lower sides 71 and 72 of the horizontal latches 7 and locked together by bolts passing through the upper side of the latches. The vertically arranged tube sheets of two adjacent tube sheets are snapped between the inner and outer sides 81 and 82 of the vertical snap 8 and locked by bolts passing through the outer side of the snap 8. The lower side of the horizontal snap 8 is shared with the upper bottom side 83 of the vertical snap 8. The outer bottom side 73 of the horizontal snap 8 is aligned with the outer side of the vertical snap 8. Metal flanges 9 are provided at the front and rear ends of the tube body 1. The inner flange 91 of the metal flange 9 is snapped into the end of the tube body and locked by locking screws passing through the outer wall of the inner flange 91. In this embodiment, the fireproof air ducts of two adjacent tube sheets are connected by the flat flange face 92 of the metal flange 9.

[0026] exist Figure 2 , 4In the middle, an outer step 10 is opened on the outer side of the side opening plate 3 of the tube sheet 2, and a side cover 11 is installed on the side opening of the tube sheet 2. The inner side of the side cover 11 is open and one side 12 of the opening is engaged with the outer step 10. The outer side of the one side 12 of the opening is flush with the outer side of the plate 3. The locking screw 14 is inserted into the plate 3 on the outer side of the tube sheet through the upper side of the horizontal snap or the outer side of the vertical snap of the tube sheet connector 6 and locked. The locking screw 14 passes into the reinforcing rib 4.

[0027] Figure 5 The difference between Embodiment 2 and Embodiment 1 is that, in Embodiment 2, an inner step 15 is provided on the inner side of the side opening plate 3 of the tube sheet 2, and a side cover 11 is installed on the side opening of the tube sheet 2. The side cover 11 has an inner opening and one side 12 of the opening is engaged with the inner step 15. The inner side of the one side 12 of the opening is flush with the inner side of the plate 3, and the outer side of the side cover 11 is flush with the side opening of the tube sheet 2. The locking screw 14 is inserted into the plate 3 on the outside of the tube sheet from the upper side of the horizontal snap or the outer side of the vertical snap of the tube sheet connector 6 and locked. The locking screw 14 extends into the reinforcing rib 4.

[0028] Figure 6 The difference between Embodiment 3 and Embodiment 1 is that the inner and outer plates of the tube sheet 2 are integrally connected by multiple connecting posts 16, and the locking screws 14 pass through the connecting posts 16.

[0029] In the above embodiments, the locking screw 14 is designed to penetrate the pipe plate 2 structure as much as possible, while ensuring that it does not penetrate the inner plate 3 of the pipe plate 2. This design ensures a secure locking structure while preventing inorganic rock wool fibers from loosening and falling into the fireproof duct. The inner opening of the metal flange 9 at the end of the pipe body 1 is used to clamp the pipe plate 2, and the locking screws inserted into the outer wall of the inner opening of the flange must meet the same requirements as described above.

[0030] In the above embodiments, the reinforcing ribs 4 and connecting columns 16 are schematic structures in the attached drawings, but in practice they can be arranged horizontally, vertically, or in a mesh pattern on the inner wall of the inner plate as needed.

[0031] To further improve the performance of the duct, the inner and outer plates 3 of the duct sheet 2 are designed as lightweight mineral fire-resistant boards, and the duct sheet connectors 6 are designed as stainless steel. A fireproof adhesive layer is installed between the opening of the side cover 11 and the bottom edge of the duct sheet and the rock wool to prevent the rock wool from loosening or falling off.

[0032] Based on the above embodiments, corresponding snap-fit ​​ribs or snap-fit ​​grooves can be added to the structure of the side cover 11 inserting into the step 10 to match the tube plate groove or tube plate ribs, so as to facilitate the insertion and docking guidance and stability, and prevent the insertion from loosening.

Claims

1. A prefabricated integrated fireproof air duct for purification, comprising a duct body formed by four tube plates arranged circumferentially, and circumferentially adjacent two tube plates are connected by a tube plate connector, the tube plate comprises an inner plate and an outer plate, and the inner plate and the outer plate are filled with rock wool, characterized in that: The side cover is clamped on each side of the tube plate periphery. ​ 2. The integrated fireproof air duct for purification according to claim 1, characterized in that: The side cover is in the shape of a Hengyang type with a single opening on one side, and the two sides of the single opening are clamped on the inner or outer side of the tube plate.

3. The integrated fireproof air duct for purification according to claim 2, characterized in that: The Hengyang type single opening is clamped on the outer side of the inner and outer plates of the tube plate, and the inner and outer plates are provided with a sunken platform, and the two sides of the single opening are clamped in the sunken platform flush with the inner and outer plates; or the Hengyang type single opening is clamped on the inner side of the inner and outer plates of the tube plate, and the inner and outer plates are provided with a sunken platform, and the two sides of the single opening are clamped in the sunken platform flush with the inner and outer plates.

4. The integrated fire-proof air duct for purification according to claim 2, characterized in that: The inner wall or outer wall of the Hengyang type single opening is provided with multiple clamping ribs or clamping grooves extending in the direction of the cross section of the side cover, and the outer or inner side of the tube plate is provided with multiple tube plate grooves or tube plate ribs corresponding to the clamping ribs or clamping grooves.

5. The integrated fire-proof air duct for purification according to claim 2, characterized in that: The Hengyang type single opening is clamped on the inner or outer side of the tube plate by a fireproof glue layer, or the Hengyang type single opening is connected to the outside of the rock wool by a fireproof glue layer, and / or the bottom of the Hengyang type single opening is glued to the outside of the rock wool by a fireproof glue layer.

6. The integrated fire-proof air duct for purification according to claim 1, characterized in that: The inner and outer plates are made of inorganic refractory material, and the inner and outer plates are connected by multiple connecting columns to form a shape, and / or the inner wall of the inner plate and / or the outer plate is provided with multiple or network reinforcing ribs.

7. The integrated fire-proof air duct for purification according to claim 1, characterized in that: The horizontally arranged tube plates in the two adjacent tube plates are clamped between the upper and lower sides of the horizontal clamping port of the tube plate connector, and are locked and connected by the lock screw passing through the upper side of the clamping port; the vertically arranged tube plates in the two adjacent tube plates are clamped between the inner and outer sides of the vertical clamping port of the tube plate connector, and are locked and connected by the lock screw passing through the outer side of the clamping port; the lower side of the horizontal clamping port shares the upper bottom of the vertical clamping port, and the outer bottom of the horizontal clamping port is connected in a straight line with the outer side of the vertical clamping port.

8. The integrated fire-proof air duct for purification according to claim 1, characterized in that: The front and rear ends of the pipe body are provided with flanges, and the inner port of the flange is clamped on the end of the pipe body and is locked and connected with the tube plate connector or the tube plate of the end of the pipe body by the lock screw passing through the outer wall of the inner port.

9. The integrated fireproof duct for purification according to claim 7 or 8, characterized in that: The lock screw does not penetrate the inner plate of the tube plate, or the lock screw does not penetrate the inner plate of the tube plate.

10. The integrated fire-proof air duct for purification according to claim 7 or 8, characterized in that: The lock screw is inserted into the outer side of the Hengyang type single opening and / or the inner side of the Hengyang type single opening; or the lock screw is inserted into the connecting column between the inner and outer plates or the reinforcing rib of the inner wall of the inner plate or the reinforcing rib of the inner wall of the inner plate.

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