CN219159746U - Socket joint formula fire-resistant heat preservation integration tuber pipe - Google Patents

Abstract

The utility model provides a socket-type fireproof heat-preserving integrated air pipe which comprises an air pipe body, a rock wool heat-preserving heat-insulating layer, a U-shaped fireproof top plate, a fireproof bottom plate and a self-locking device, wherein the four side walls of the air pipe body are gradually narrowed from one end far from the center of the air pipe to one end close to the center of the air pipe, the self-locking device is arranged on the air pipe body, the rock wool heat-preserving heat-insulating layer is wrapped on the four side walls of the air pipe body, the U-shaped fireproof top plate is reversely fastened and fixed on the rock wool heat-preserving heat-insulating layer, and the fireproof bottom plate is fixed with the two side plates of the U-shaped fireproof top plate through bottom plate fastening screws. Through the factory prefabrication and assembly design, the steel air pipe main body is effectively combined with the heat insulation material and the refractory material, the construction flow of the fireproof air pipe is greatly simplified, meanwhile, the air pipes are connected in a socket joint mode, and the integrity and long-term durability of the air pipes are improved; can be applied to various new or modified ventilation air conditioning projects, and has good popularization prospect and industrialization prospect.

Description

Socket joint formula fire-resistant heat preservation integration tuber pipe

Technical Field

The utility model relates to the field of air conditioner ventilation pipelines, in particular to a socket-type fireproof heat-preservation integrated air pipe.

Background

The technical standard of the smoke-proof and smoke-exhausting system for buildings in GB51351-2017 has clear requirements on the fire resistance limit of the air pipe, the common measure of fire prevention of the air pipe is that the rock wool layer is filled on the outer surface of the original metal air pipe, the fireproof cover plate is adopted for attaching the surface, and the heat preservation layer of the dual-purpose air pipe also meets the requirements of heat preservation, heat insulation and condensation prevention. The installation of the fire-proof layer of the prior air pipe is generally carried out on site, and the fire-proof plate is covered outside after the steel air pipe is installed, so that the prior art has the problems of complex construction process, long period and easy material waste, and meanwhile, the integrity of the air pipe is damaged due to construction errors and the like, and the service life of the air pipe is reduced. Therefore, developing a socket type fireproof heat-preserving integrated air duct is a problem to be solved urgently.

Disclosure of Invention

In view of the above, the utility model aims to provide a socket type fireproof heat-preservation integrated air pipe, which can simplify the construction flow and improve the integrity and long-term durability of the air pipe through component prefabrication production and assembly on the premise of meeting various use requirements.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a socket joint formula fire-resistant heat preservation integration tuber pipe, includes air pipe main part, rock wool heat preservation insulating layer, U-shaped fire-resistant roof, fire-resistant bottom plate and self-locking device, four lateral walls of air pipe main part are from keeping away from the one end at tuber pipe center to the one end that is close to the tuber pipe center narrowing gradually to this forms the socket joint of a socket joint formula fire-resistant heat preservation integration tuber pipe be equipped with self-locking device in the air pipe main part, rock wool heat preservation insulating layer parcel in on four lateral walls of steel air pipe, U-shaped fire-resistant roof back-off is fixed in rock wool heat preservation insulating layer top, fire-resistant bottom plate pass through bottom plate fastening screw with two curb plates of U-shaped fire-resistant roof are fixed.

Further, a plurality of self-locking devices are arranged at the upper wall and the lower wall of the socket joint at the tail end of the ventilating duct main body, each self-locking device comprises a shell, a thimble and a compression spring, a preformed hole is formed in the ventilating duct main body and opposite to the self-locking device, a compression thimble is arranged in the shell, a spring is arranged on the thimble, and the preformed hole is matched with the thimble.

So set up, when two air pipe main parts carry out socket joint formula connection, can make tuber pipe socket joint connect in the self-locking device thimble by self-locking device's compression spring accurate push in the preformed hole, make the auto-lock fixed between the tuber pipe, avoid the pine to take off.

Further, the top end of the thimble head is an arc-shaped inclined plane, the height of the thimble head is 2 times of the wall thickness of the ventilation pipeline main body, the diameter of the tail of the thimble is 2-5mm greater than that of the reserved hole, and a compression spring is arranged on the tail of the thimble.

The air duct pushing resistance during socket connection can be effectively reduced, and damage to the air duct or the fan caused by the fact that the ejector pin of the self-locking device is ejected into the air duct by the compression spring is avoided.

Further, the four side walls of the ventilation pipeline main body are narrowed by 2mm from one end far from the center of the air pipe to one end close to the center of the air pipe.

Further, the ventilation pipeline main body is made of stainless steel materials, the inner wall surface is smooth, and the thickness of the stainless steel materials is 2mm.

By the arrangement, the inner wall of the air pipe can have lower surface friction resistance, and dynamic pressure loss caused when air is conveyed in the air pipe is reduced.

Furthermore, the shell is fixed on the upper wall and the lower wall of the tail end of the ventilation pipeline body by adopting weather-proof glue, and the positions of the shell and the preformed holes are kept consistent.

Further, the preformed holes are spaced at a distance of 50 to 100mm and uniformly arranged on the ventilation duct body.

So set up, can make the socket joint formula connection between the port between the tuber pipe, can prevent to appear pine in the use and take off between the tuber pipe, simultaneously, adopt this kind of socket joint formula connected mode to avoid the flame retardant coating that leads to when the tuber pipe adopts flange joint to destroy in the past, avoid flange joint to pass the cold and hot bridge phenomenon that arouses when rock wool heat preservation insulating layer, promote tuber pipe fire resistance and thermal insulation properties.

Further, the top of the ventilating duct main body is provided with an L-shaped double-spliced supporting hanging bracket, the L-shaped double-spliced supporting hanging bracket is formed by splicing two L-shaped steels, a supporting hanging hole is reserved at the top of each L-shaped steel, and the bottom of each L-shaped steel is fixed on the wall surface of the top of the ventilating duct main body through rivets.

The arrangement can avoid the support and hanger from being directly exposed to high-temperature environment, and meanwhile, the L-shaped double-spliced support and hanger can enhance the transverse stress rigidity of the air pipe; meanwhile, the contact area between the L-shaped double-spliced supporting hanging bracket and the steel ventilating duct main body can be increased, deformation of the supporting hanging bracket on the steel ventilating duct main body caused by uneven stress is avoided, and the supporting hanging hole can facilitate the installation and fixation of the air duct in the later-stage site.

Further, an L-shaped bottom plate reinforcement is also arranged at the joint of the fireproof bottom plate and the U-shaped fireproof top plate.

The U-shaped fireproof top plate side wall damage caused by uneven stress during fixation of the bottom plate fastening screw can be avoided, and meanwhile, the longitudinal stress rigidity of the air pipe can be enhanced.

Further, the rock wool heat preservation and insulation layer wraps the periphery of the ventilation pipeline main body and is adhered by weather-proof glue, and the rock wool heat preservation and insulation layer is made of inorganic fiber materials and has a thickness of more than 50mm.

By the arrangement, the cold energy loss caused by heat exchange between low-temperature air in the air pipe and ambient air can be effectively reduced, in addition, the high vapor permeability of rock wool can also balance the humidity change between the stainless steel wall surface of the air pipe and the fireproof plate caused by abrupt temperature change, and the risk of condensation in the air pipe is reduced.

Compared with the prior art, the socket type fireproof heat-preservation integrated air pipe has the following advantages: through the factory prefabrication and assembly design, the steel air pipe main body is effectively combined with the heat insulation material and the refractory material, the construction flow of the fireproof air pipe is greatly simplified, meanwhile, the air pipes are connected in a socket joint mode, and the integrity and long-term durability of the air pipes are improved; can be applied to various new or modified ventilation air conditioning projects, and has good popularization prospect and industrialization prospect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is an isometric view of a socket type refractory and heat-insulating integrated air duct of the present utility model;

FIG. 2 is a left side view of a socket type refractory and heat preservation integrated air duct of the present utility model;

FIG. 3 is a front view of a socket type refractory and heat-insulating integrated air duct of the present utility model;

FIG. 4 is a top view of a socket type refractory and heat-insulating integrated air duct according to the present utility model;

FIG. 5 is a schematic view of the main structure of the ventilating duct according to the present utility model;

FIG. 6 is a schematic structural view of the connection mode of the U-shaped refractory top plate and the thickened refractory bottom plate in the utility model;

FIG. 7 is a schematic view of the structure of the self-locking device of the present utility model;

FIG. 8 is a schematic view of the structure of the L-shaped double-spliced supporting hanger;

FIG. 9 is a schematic view of the self-locking device of the present utility model in an unlocked state;

FIG. 10 is a schematic view showing a locked state of the self-locking device of the present utility model;

FIG. 11 is a schematic view of a self-locking device of the present utility model.

Reference numerals illustrate:

1. a steel ventilation duct body; 2. rock wool heat preservation and insulation layer; 3. a U-shaped refractory top plate; 4. thickening the fireproof bottom plate; 5. a preformed hole; 6. a base plate fastening screw; 7. l-shaped floor reinforcement; 8. l-shaped double-spliced supporting hanging bracket; 8-1, L-shaped steel; 8-2, rivets; 8-3, supporting hanging holes; 9. a self-locking device; 9-1, a shell; 9-2, a thimble; 9-3, compressing the spring.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 11, the socket joint type fireproof heat preservation integrated air pipe comprises a steel ventilating duct main body 1, a rock wool heat preservation and insulation layer 2, a U-shaped fireproof top plate 3, a thickened fireproof bottom plate 4, a reserved hole 5, a bottom plate fastening screw 6, an L-shaped bottom plate reinforcing member 7, an L-shaped double-spliced supporting and hanging bracket 8 and a self-locking device 9, wherein the self-locking device 9 comprises a shell 9-1, a thimble 9-2 and a compression spring 9-3.

The steel ventilating duct main body 1 is made of stainless steel materials, the inner wall surface is smooth, and the main body of the socket type fireproof heat-preservation integrated air duct is formed, and the thickness of the stainless steel materials is 2mm. The inner wall of the air pipe can have lower surface friction resistance, and the dynamic pressure loss caused when the air is conveyed in the air pipe is reduced.

The four walls of one side port of the steel ventilating duct main body 1 are respectively narrowed to the center of the air duct by 2mm, so that a socket joint of a socket joint type fireproof heat preservation integrated air duct is formed, the upper wall and the lower wall of the socket joint are provided with reserved holes 5 of the thimble 9-2 in the self-locking device 9, and the intervals of the reserved holes are 50-100mm and are uniformly distributed on the upper wall and the lower wall of the socket joint of the air duct. The socket joint type connection between ports can be realized between the air pipes in the arrangement mode, loose falling of the air pipes in the use process can be prevented, meanwhile, the socket joint type connection mode is adopted, so that the damage of a fireproof layer caused when the air pipes adopt flange connection in the past is avoided, the phenomenon of cold and hot bridges caused when the flange connection passes through a heat preservation and insulation layer is avoided, and the fire resistance and heat preservation performance of the air pipes are improved.

The shell 9-1 of the self-locking device is fixed on the upper and lower wall sides of the tail end of the ventilation pipeline main body 1 by weather-proof glue, and the position of the shell is consistent with that of the preformed hole 5. When the socket connection is carried out, the thimble in the self-locking device can be accurately pushed into the reserved hole by the compression spring of the self-locking device, so that the air pipes are self-locked and fixed, and the loosening is avoided.

The diameter of the tail part of the thimble 9-2 of the self-locking device is 2-5mm larger than the diameter of the reserved hole 5. The air duct or the fan is prevented from being damaged due to the fact that the ejector pin of the self-locking device is ejected into the air duct by the compression spring.

The top end of the head part of the thimble 9-2 of the self-locking device is designed as an arc-shaped inclined plane, and the height of the head part of the thimble 9-2 of the self-locking device is 2 times the wall thickness of the stainless steel air pipe. The push-in resistance of the air pipe during socket connection can be effectively reduced.

The ventilating duct main part 1 top is provided with L shape double-spliced supporting hanger 8, L shape double-spliced supporting hanger 8 adopts the riveting mode to be fixed in tuber pipe stainless steel top, and riveting point position interval should be at 50-100mm and evenly arrange, can avoid supporting hanger direct exposure to high temperature environment, and L shape double-spliced supporting hanger can strengthen the horizontal atress rigidity of tuber pipe simultaneously.

The L-shaped double-spliced supporting and hanging bracket 8 is formed by splicing two L-shaped steel 8-1, a supporting and hanging hole 8-3 is reserved at the top, and the bottom is fixed on the top wall surface of the steel ventilation pipeline main body 1 by rivets 8-2. The contact area between the L-shaped double-spliced support hanging bracket and the steel ventilation pipeline main body can be increased, and deformation of the support hanging bracket to the steel ventilation pipeline main body caused by uneven stress is avoided. Meanwhile, the support hole can facilitate the installation and fixation of the air pipe in the later field.

The rock wool heat preservation and insulation layer 2 is wrapped around the steel ventilating duct 1 and adhered by weather-proof glue, the thickness of the rock wool heat preservation and insulation layer 2 is greater than 50mm, the requirements of dew prevention and heat preservation are met, the rock wool heat preservation and insulation layer is made of inorganic fiber materials, and the steam permeability coefficient is 6.71 multiplied by 10 ^-11 kg/(ms.Pa), has good air permeability and heat conductivity coefficientThe rock wool is not influenced by humidity change, and meanwhile, the rock wool belongs to a high-temperature resistant A1-level incombustible heat insulation material, so that cold energy loss caused by heat exchange between low-temperature air in the air pipe and ambient air can be effectively reduced, in addition, the high vapor permeability of the rock wool can also balance humidity change between the stainless steel wall surface of the air pipe and the fireproof plate due to abrupt temperature change, and the risk of condensation in the air pipe is reduced.

The U-shaped fireproof top plate 3 is reversely fastened and fixed above the heat preservation and insulation layer 2, the U-shaped fireproof top plate 3 is made of silicate added with polymer modified materials, and the thickness of the materials is 15mm. The U-shaped fireproof top plate can be light and high in strength, meanwhile, the requirements on the fireproof limit of the ventilating duct in relevant specifications are met, and meanwhile, compared with the traditional splicing design of the fireproof plate of the air duct, the splicing of the top of the air duct and the fireproof plates of two side walls of the air duct can be reduced due to the design of the U-shaped fireproof top plate, and the integrity of the fireproof plate is improved.

The side wall of the U-shaped refractory top plate 3 extends downwards to 30mm below the rock wool heat preservation and insulation layer 2. Can be tightly combined with the fireproof bottom plate, and avoids the exposure of the air pipe heat preservation and insulation material to the external environment.

The thickened refractory bottom plate 4 is fixed with the side plates of the U-shaped refractory top plate 3 by the bottom plate fastening screws 6. The thickness of the thickened fireproof bottom plate 4 is 2 times that of the U-shaped fireproof top plate 3. Can avoid the damage to the air pipe heat insulation layer when the fireproof plate is fixed, and simultaneously enhance the fire resistance of the air pipe.

The connection part of the thickened fireproof bottom plate 4 and the U-shaped fireproof top plate 3 is also provided with an L-shaped bottom plate reinforcement 7. The side wall of the U-shaped fireproof top plate caused by uneven stress during the fixation of the bottom plate fastening screw can be avoided, and the longitudinal stress rigidity of the air pipe can be enhanced.

The application process of the utility model comprises the following steps: one air pipe is inserted into the socket joint of the other air pipe, the air pipe inserted into the outside exerts pressure on the air pipe inside, so that the shell 9-1 of the self-locking device in the air pipe inside is extruded, the compression spring 9-3 is compressed downwards, the ejector pin 9-2 is ejected into the reserved hole 5, and self-locking of the self-locking device is completed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a socket joint formula fire-resistant heat preservation integration tuber pipe which characterized in that: including air pipe main part, rock wool heat preservation insulating layer, U-shaped fire-resistant roof, fire-resistant bottom plate and self-locking device, four lateral walls of air pipe main part are from keeping away from the one end at tuber pipe center to being close to the one end at tuber pipe center and narrow gradually be equipped with self-locking device in the air pipe main part, rock wool heat preservation insulating layer parcel in on four lateral walls of air pipe main part, U-shaped fire-resistant roof back-off is fixed in on the rock wool heat preservation insulating layer, fire-resistant bottom plate pass through bottom plate fastening screw with two curb plates of U-shaped fire-resistant roof are fixed.

2. The socket joint type fire-resistant heat preservation integrated air duct according to claim 1, wherein: the upper wall and the lower wall of the tail end of the ventilating duct body are provided with a plurality of self-locking devices, each self-locking device comprises a shell, a thimble and a compression spring, a preformed hole is formed in the ventilating duct body and opposite to the self-locking device, the thimble is arranged in the shell, the compression spring is arranged on the thimble, and the preformed hole is matched with the thimble.

3. The socket joint type fire-resistant heat preservation integrated air pipe according to claim 2, wherein: the top end of the thimble head is an arc-shaped inclined plane, the height of the thimble head is 2 times of the wall thickness of the ventilation pipeline main body, the diameter of the tail of the thimble is 2-5mm greater than the diameter of the reserved hole, and a compression spring is arranged on the tail of the thimble.

4. The socket joint type fire-resistant heat preservation integrated air duct according to claim 1, wherein: the four side walls of the ventilation pipeline main body are narrowed by 2mm from one end far from the center of the air pipe to one end close to the center of the air pipe.

5. The socket joint type fire-resistant heat preservation integrated air duct according to claim 1, wherein: the ventilating duct body is made of stainless steel materials, the inner wall surface is smooth, and the thickness of the stainless steel materials is 2mm.

6. The socket joint type fire-resistant heat preservation integrated air pipe according to claim 2, wherein: the shell is fixed on the upper wall and the lower wall of the tail end of the ventilating duct body by weather-proof glue, and the positions of the shell and the preformed hole are kept consistent.

7. The socket joint type fire-resistant heat preservation integrated air pipe according to claim 2, wherein: the preformed holes are spaced at a distance of 50 to 100mm and uniformly arranged on the ventilation pipeline main body.

8. The socket joint type fire-resistant heat preservation integrated air pipe according to claim 1 or 2, wherein: the utility model discloses a ventilating duct, including ventilating duct main part, pipeline, support, rivet, support, pipeline main part top is provided with L shape double-spliced support, L shape double-spliced support is formed by two L shape steel concatenations, the suspension hole is reserved at the top of L shape steel, the bottom is fixed in through the rivet ventilating duct main part top wall.

9. The socket joint type fire-resistant heat preservation integrated air duct of claim 8, wherein: an L-shaped bottom plate reinforcement is further arranged at the joint of the fireproof bottom plate and the U-shaped fireproof top plate.

10. The socket joint type fire-resistant heat preservation integrated air duct according to claim 1, wherein: the rock wool heat preservation and insulation layer wraps around the ventilation pipeline main body and is adhered by weather-proof glue, and the thickness is larger than 50mm.

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