CN210831030U

CN210831030U - Double-layer heat-preservation spiral air pipe

Info

Publication number: CN210831030U
Application number: CN201921737813.3U
Authority: CN
Inventors: 邵晓润; 边卫刚
Original assignee: Wuxi Shuangyang Hvac Equipment Co ltd
Current assignee: Wuxi Shuangyang Hvac Equipment Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-23
Anticipated expiration: 2029-10-16

Abstract

The utility model relates to the technical field of spiral air ducts, in particular to a double-layer heat-preservation spiral air duct, which comprises an inner tube, an outer tube and a heat preservation layer, wherein the outer tube is sleeved outside the inner tube, the heat preservation layer is arranged between the outer tube and the inner tube, a limiting rib is arranged in the heat preservation layer, the limiting rib is in a three-dimensional cylindrical shape, and a heat preservation material is filled in the limiting rib; the limiting ribs comprise outer ribs abutting against the inner wall of the outer pipe, inner ribs abutting against the outer wall of the inner pipe and connecting ribs connecting the outer ribs and the inner ribs; the outer ribs and/or the inner ribs are in a grid shape on the side surface of the cylinder; the heat insulation material is loose and porous. The utility model discloses the effect of heat preservation structural strength has.

Description

Double-layer heat-preservation spiral air pipe

Technical Field

The utility model belongs to the technical field of the technique of spiral duct and specifically relates to a double-deck heat preservation spiral duct is related to.

Background

The spiral air pipe is mainly used for communicating air circulation between two places and plays a role in ventilation. The spiral air pipe is widely applied to air supply, air exhaust and central air conditioning systems of high-rise buildings from the 80 th century, and the materials of the spiral air pipe are developing towards material diversification and energy conservation at present. Compared with other materials, the spiral air pipe has the advantages of less pollution, recyclable edge, corner and waste materials, simple manufacturing process, low requirements on tools and tools, random strain on site and the like.

The heat preservation of present spiral branch pipe often is whole setting, and the heat preservation can receive the effect of external force sometimes and receive pressure deformation, because insulation material's comparatively soft, insulation material often can warp impaired, so needs prior art to improve.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a double-deck heat preservation spiral duct for the heat preservation is difficult impaired.

The utility model aims at realizing through the following technical scheme:

the utility model provides a double-deck heat preservation spiral duct, includes inner tube, outer tube and heat preservation, the outer tube housing is in the outside of inner tube, the heat preservation sets up between outer tube and inner tube, be provided with spacing muscle in the heat preservation, spacing muscle is three-dimensional cylindric, spacing muscle intussuseption is filled with insulation material.

By adopting the technical scheme, the heat-insulating layer is clamped between the inner pipe and the outer pipe, and the heat-insulating layer is not deformed under the oppression of external force because the inner pipe and the appearance have certain rigidity; spacing muscle has been alternate in the heat preservation, therefore the structural strength of heat preservation can strengthen, and spacing muscle mainly plays the effect that supports, maintains the difficult emergence of insulation material shape and changes, and insulation material plays thermal-insulated heat retaining effect, has had spacing muscle, and insulation material non-deformable is impaired.

The utility model discloses further set up to: the limiting ribs comprise outer ribs abutting against the inner wall of the outer pipe, inner ribs abutting against the outer wall of the inner pipe and connecting ribs connecting the outer ribs and the inner ribs.

Through adopting above-mentioned technical scheme, interior muscle supports on the lateral wall of inner tube, and outer muscle supports on the inside wall of outer tube, is connected with even muscle between outer muscle and the interior muscle, has played the effect of support for formed between outer muscle and the interior muscle in the heat preservation and had more fixed space, be difficult for being extruded by outer tube and inner tube between outer muscle of insulation material and the interior muscle, so insulation material non-deformable, torn or impaired time structure collapse.

The utility model discloses further set up to: the outer ribs and/or the inner ribs are in a grid shape on the side surface of the cylinder.

By adopting the technical scheme, the latticed inner ribs or outer ribs can increase the structural strength of the heat-insulating layer, and the heat-insulating material is filled between the latticed inner ribs or outer ribs, so that the heat-insulating material is divided into a plurality of multi-latticed parts. When the heat insulation material in a certain latticed shape is damaged, the heat insulation material is limited by the connecting ribs, the latticed inner ribs and the outer ribs, so that the heat insulation material is not easy to continuously tear and damage.

The utility model discloses further set up to: the heat insulation material is loose and porous.

Through adopting above-mentioned technical scheme, there are this a large amount of air in the insulation material, because the air is difficult for flowing in the insulation material, consequently the air in the insulation material is difficult for the heat transfer, has loose porous setting to make the interior and the outside difficult heat exchange that produces of part of outer tube of inner tube, therefore the insulation material plays good thermal-insulated effect that keeps warm.

The utility model discloses further set up to: and a sealing adhesive tape is adhered to the inner wall of the outer pipe.

Through adopting above-mentioned technical scheme, sealed sticky tape has waterproof, isolated circulation of air's effect, pastes sealed sticky tape at the inner wall of outer tube, and the outside moisture of outer tube, air are difficult for entering into the heat preservation, therefore the inside environment of heat preservation remains stable, and insulation material is difficult for receiving the aqueous vapor of external environment, air oxidation corrosion.

The utility model discloses further set up to: the thickness of the heat preservation layer is 0.41-0.59 times of the diameter of the inner wall of the inner pipe.

By adopting the technical scheme, the thickness of the heat-insulating layer is set so as to achieve the effects of heat insulation and heat preservation, and the heat-insulating layer does not occupy too much space and volume.

The utility model discloses further set up to: and a reinforcing support is arranged in the inner wall of the inner pipe and abuts against the inner pipe along the diameter direction of the inner pipe.

Through adopting above-mentioned technical scheme, strengthen the effect that props up inside inner tube and the heat preservation from the inner tube for the heat preservation is difficult to sunken, collapses to the inner tube, has maintained the stability of the structure of heat preservation.

The utility model discloses further set up to: the reinforcing support is in a rod shape, the middle part of the reinforcing support is disconnected, an adjusting screw is arranged at one disconnected part, an adjusting screw hole is arranged at the other disconnected part, a limiting screw penetrates through the side surface of the adjusting screw hole, and the limiting screw abuts against the adjusting screw.

Through adopting above-mentioned technical scheme, the strengthening props the length that the strengthening propped through the degree of depth of adjusting screw in adjusting the screw to through the limited screw to the tight restriction that realizes strengthening the length of propping of adjusting screw.

The utility model discloses further set up to: and anti-skid rubber sleeves are arranged at two ends of the reinforcing support.

By adopting the technical scheme, the friction factor between the anti-skid rubber sleeve and the inner wall of the inner pipe is greater than that between the reinforcing support and the inner wall, so that the friction force between the inner wall of the inner pipe and the reinforcing support is increased conveniently at the two ends of the reinforcing support by the anti-skid rubber sleeve.

The utility model discloses further set up to: the outer wall of the outer pipe is provided with an anchor ear, the inner diameter of the anchor ear is consistent with the diameter of the outer pipe, and the position of the anchor ear corresponds to the position of the anchor ear.

By adopting the technical scheme, the hoop has the function of fixing the diameter of the outer pipe, so that the outer pipe is not easy to collapse; the staple bolt setting is provided with the outside that strengthens the support at the spiral duct, therefore the inside and outside both sides of spiral duct all bear the effort, and the inside and outside atress of spiral duct is balanced, therefore the structure of spiral duct is firm, non-deformable.

To sum up, the utility model discloses a beneficial technological effect does:

1. the heat insulation layer is internally provided with a limiting rib, and the limiting rib has certain structural strength, so that the heat insulation material is not easily pressed by the inner pipe and the outer pipe in the limiting rib, and the heat insulation material is not easily deformed and damaged;

2. the heat-insulating material of the heat-insulating layer has the characteristics of looseness and porosity, so that the heat-insulating material has better heat-insulating performance, and the heat-insulating effect is better due to the arrangement of the thickness of the heat-insulating layer, and excessive space resources are not occupied;

3. the reinforcement support that inner tube inside set up has length-adjustable's function for the inside of inner tube can be supported, and the inner tube is difficult for caving in and collapses, is convenient for place when the installation is strengthened and props, strengthens to prop the increase back of length and play the supporting role to the inner tube.

Drawings

Fig. 1 is a schematic view of the overall structure of a double-layer heat-preservation spiral air pipe of the present invention.

Fig. 2 is a schematic structural view of the reinforcing brace of the present invention.

Fig. 3 is a schematic structural diagram of the limiting rib of the present invention.

Fig. 4 is a schematic structural diagram of the outer tube of the present invention.

In the figure, 1, an inner tube; 11. a reinforcing support; 111. an anti-slip rubber sleeve; 112. adjusting screws; 113. adjusting the screw hole; 114. a limiting screw; 2. a heat-insulating layer; 21. limiting ribs; 211. an outer rib; 212. an inner rib; 213. connecting the ribs; 22. a thermal insulation material; 3. an outer tube; 31. sealing the adhesive tape; 32. and (5) hooping.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a double-deck heat preservation spiral duct, including inner tube 1, outer tube 3 and heat preservation 2.

The material of the inner pipe 1 and the outer pipe 3 can be one or a combination of a plurality of galvanized steel plates, stainless steel plates and galvanized iron sheets. The cross-sectional shapes of the inner tube 1 and the outer tube 3 may be any one of circular, oblate, and rectangular. Wherein the inner tube 1 is made of galvanized stainless steel plate, and the inner tube 1 is cylindrical.

Referring to fig. 2, a reinforcing brace 11 is disposed in the inner wall of the inner tube 1, the reinforcing brace 11 is in a shape of a round bar, and anti-slip rubber sleeves 111 are respectively sleeved at two ends of the reinforcing brace 11, the anti-slip rubber sleeves 111 may be made of silica gel, rubber, or the like, when the reinforcing brace 11 applies force to the inner wall of the inner tube 1, because the friction coefficient between the anti-slip rubber sleeves 111 and the inner tube 1 is greater than the friction coefficient between the reinforcing brace 11 and the inner tube 1 when the anti-slip rubber sleeves 111 are not used, the anti-slip rubber sleeves 111 can increase the friction force between the reinforcing brace 11 and the inner tube 1.

The middle positions of the reinforcing support 11 are disconnected with each other, the disconnected part at one end of the reinforcing support 11 is integrally provided with an adjusting screw 112, the adjusting screw 112 extends along the length direction of the reinforcing support 11, and the diameter of the adjusting screw 112 is smaller than that of the reinforcing support 11. The other end of the reinforcing support 11 is provided with an adjusting screw hole 113 at the break, the adjusting screw hole 113 extends inwards at the break of the reinforcing support 11, and the adjusting screw hole 113 is consistent with the diameter of the adjusting screw 112, so that the adjusting screw 112 can be screwed into the adjusting screw hole 113, and the transition fit of the adjusting screw 112 and the adjusting screw hole 113 is realized.

Referring to fig. 1, when the reinforcing brace 11 is placed in the inner tube 1, so that the anti-slip rubber sleeves 111 at the two ends of the reinforcing brace 11 are abutted against the diameter direction of the inner tube 1, the adjusting screw 112 of the reinforcing brace 11 rotates in the adjusting screw hole 113 to adjust the overall length of the reinforcing brace 11, along with the distance of the adjusting screw 112 of the reinforcing brace 11 from the adjusting screw, the length of the reinforcing brace 11 is continuously increased, the acting force of the reinforcing brace 11 on the inner tube 1 is also continuously increased, and the reinforcing brace 11 is increasingly abutted against the inner tube 1. The inner pipe 1 is not easy to dent, collapse and deform by the reinforcing support 11.

The side surface of the reinforcing support 11 provided with the adjusting screw hole 113 is also provided with a limiting screw 114, the limiting screw 114 penetrates through the side wall of the reinforcing support 11 close to the break, and the moving direction of the limiting screw 114 is perpendicular to the moving direction of the adjusting screw 112. After the adjusting screw 112 adjusts the length of the reinforcing brace 11, the limiting screw 114 rotates and abuts against the adjusting screw 112, so that the adjusting screw 112 is not easy to rotate in the adjusting screw hole 113, and the length of the reinforcing brace 11 is limited.

Referring to fig. 1, the insulating layer 2 is composed of a limiting rib 21 and an insulating material 22. Spacing muscle 21 can be metal, alloy or polymer composite make, and spacing muscle 21 plays the effect of injecing insulation material 22 for insulation material 22 is difficult for shifting in the use, becomes the piece and tears, plays the effect of protection insulation material 22.

Referring to fig. 3, the limiting rib 21 is a three-dimensional cylinder, the limiting rib 21 is formed by mutually connecting and building an inner rib 212, an outer rib 211 and a connecting rib 213, the cross section of the inner rib 212 is circular, and the diameter of the cross section of the inner rib 212 is slightly larger than the outer diameter of the inner pipe 1, so that the inner rib 212 can be sleeved outside the inner pipe 1. The inner rib 212 is formed by a plurality of lattices on the side surface, the lattices can be a splicing combination of diamond lattices, rectangular lattices, hexagonal lattices or other polygonal lattices, and the preferred embodiment is a square lattice. The cross section of the outer rib 211 is circular, and the diameter of the cross section of the outer rib 211 is consistent with the inner diameter of the outer tube 3, so that the outer tube 3 can be tightly sleeved on the outer rib 211.

The side surface of the outer rib 211 is composed of a plurality of lattices, the lattices can be a splicing combination of diamond lattices, rectangular lattices, hexagonal lattices or other polygonal lattices, and the preferred embodiment is a square lattice. Connecting ribs 213 are connected between the outer ribs 211 and the inner ribs 212, and the connecting ribs 213 can be vertical to the inner ribs 212 and the outer ribs 211 or can be obliquely connected; the connecting rib 213 may be a straight line, a curved line or a closed shape, and in this embodiment, it is preferable that the connecting rib 213 is perpendicular to the inner rib 212 and the outer rib 211, and the connecting rib 213 is linear. The connecting ribs 213 can play a role in increasing the structural strength of the heat-insulating layer 2, so that the heat-insulating material 22 in the heat-insulating layer 2 can have certain structural strength and is not easily deformed by external force, thereby playing a role in protecting the heat-insulating layer 2.

Referring to fig. 1, the insulation 22 may be foamed phenolic, polyurethane, rubber plastic or other porous material. The thickness of the heat insulation material 22 is consistent with the thickness occupied by the limiting ribs 21, the thickness of the heat insulation layer 2 is 0.41-0.59 times of the diameter of the inner wall of the inner pipe 1, and preferably, the thickness of the heat insulation layer 2 is 0.5 times of the inner diameter of the inner pipe 1.

Outer tube 3 adopts galvanized corrosion resistant plate to make, and outer tube 3 is the cylindric that has stamping forming to obtain the screw thread shape, pastes sealed sticky tape 31 (refer to fig. 4) on the inner wall of outer tube 3, and sealed sticky tape 31 plays the effect of the gas tightness of strong outer tube 3 for the air and the water in the 3 outsides of outer tube and the 3 inside barriers of outer tube, with moisture, the air admission heat preservation 2 in the reduction outer tube 3, make heat preservation 2 difficult by the morals and manners.

The outside of outer tube 3 is provided with staple bolt 32, and the internal diameter of staple bolt 32 is unanimous with the external diameter of outer tube 3, and staple bolt 32 passes through the screw fixation on the outer wall of outer tube 3, and consequently staple bolt 32 can realize inseparable fixed with outer tube 3 for outer tube 3 is difficult for collapsing out. The position that staple bolt 32 set up is unanimous with the position that the enhancement propped 11 place, and consequently the inner tube 1 of this department has the restriction that the enhancement propped 11, and outer tube 3 has the restriction of staple bolt 32, and the heat preservation 2 in the spiral duct is balanced in the both sides atress of inner tube 1 and outer tube 3, and heat preservation 2 is non-deformable.

The implementation principle of the embodiment is as follows: the inner part of the inner tube 1 is provided with the reinforcing support 11, and the reinforcing support 11 can support the inner tube 1, so that the inner tube 1 is not easy to recess and deform; the reinforcing ribs in the heat-insulating layer 2 play a role in supporting the heat-insulating layer 2, so that the heat-insulating layer 2 is not easy to deform under the action of external force, and the heat-insulating material 22 is not easy to damage in deformation; the outer pipe 3 is sleeved outside the heat-insulating layer 2, and the sealing adhesive tape 31 is adhered to the inner wall of the outer pipe 3, so that the weathering of the external air moisture to the heat-insulating material 22 is reduced; the position that the outside of outer tube 3 and reinforcing support 11 correspond is provided with staple bolt 32 for the spiral duct stable in structure is difficult for collapsing open, sunken, thereby plays the impaired effect of protection heat preservation 2 indeformable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a double-deck heat preservation spiral duct, includes inner tube (1), outer tube (3) and heat preservation (2), outer tube (3) cover is in the outside of inner tube (1), heat preservation (2) set up between outer tube (3) and inner tube (1), its characterized in that: be provided with spacing muscle (21) in heat preservation (2), spacing muscle (21) are three-dimensional cylindric, spacing muscle (21) intussuseption is filled with insulation material (22).

2. The double-layer heat-preservation spiral air pipe according to claim 1, characterized in that: spacing muscle (21) including support outer muscle (211) at outer tube (3) inner wall, support interior muscle (212) at inner tube (1) outer wall and link muscle (213) of being connected outer muscle (211) and interior muscle (212).

3. The double-layer heat-preservation spiral air pipe according to claim 2, characterized in that: the outer ribs (211) and/or the inner ribs (212) are in a grid shape on the side surface of the cylinder.

4. The double-layer heat-preservation spiral air pipe according to claim 1, characterized in that: the heat insulation material (22) is loose and porous.

5. The double-layer heat-preservation spiral air pipe according to claim 1, characterized in that: and a sealing adhesive tape (31) is adhered to the inner wall of the outer pipe (3).

6. The double-layer heat-preservation spiral air pipe according to claim 1, characterized in that: the thickness of the heat preservation layer (2) is 0.42-0.58 times of the diameter of the inner wall of the inner pipe (1).

7. The double-layer heat-preservation spiral air pipe according to claim 1, characterized in that: the inner wall of the inner pipe (1) is provided with a reinforcing support (11), and the reinforcing support (11) tightly abuts against the inner pipe (1) along the diameter direction of the inner pipe (1).

8. The double-layer heat-preservation spiral air pipe according to claim 7, characterized in that: the reinforcing support (11) is in a rod shape, the middle part of the reinforcing support (11) is disconnected, an adjusting screw (112) is arranged at one disconnected part, an adjusting screw hole (113) is arranged at the other disconnected part, a limiting screw (114) penetrates through the side surface of the adjusting screw hole (113), and the limiting screw (114) abuts against the adjusting screw (112).

9. The double-layer heat-preservation spiral air pipe according to claim 8, characterized in that: and anti-skid rubber sleeves (111) are arranged at two ends of the reinforcing support (11).

10. The double-layer heat-preservation spiral air pipe according to claim 7, characterized in that: the anchor ear fixing device is characterized in that an anchor ear (32) is arranged on the outer wall of the outer pipe (3), the inner diameter of the anchor ear (32) is consistent with the diameter of the outer pipe (3), and the position of the anchor ear (32) corresponds to the position of the anchor ear (32).