CN209026334U - A kind of blowdown dedicated pipe - Google Patents

Abstract

A kind of blowdown dedicated pipe; including tube body; body central is flexible pressure-resistant polyethylene liner layer (1), and outer protection resin layer (2), resin fibre glass reinforced plastic enhancement layer (3), slow pressurized layer (4), erosion resistant coating (5), stainless-steel pipe (6) are followed successively by outside polyethylene liner layer (1)；Tube two sides are bell and spigot frame, the stainless-steel pipe (6) of the end of tube body side extends to form bellmouth steel ring cap (7) outward, inwardly necking forms socket steel ring set (9) to the stainless-steel pipe (6) of the tube body end of the other side, tube body end where socket steel ring set (9) is provided with rubber washer (8), socket steel ring set (9) forms the first groove towards the side of erosion resistant coating, second groove, first groove, the first O-ring seal (11) are respectively set in second groove, second O-ring seal (12), the outside of stainless-steel pipe (6) has reinforcing rib.

Description

A kind of blowdown dedicated pipe

Technical field

The utility model relates to pipe technology fields, specifically, being to be related to a kind of blowdown dedicated pipe.

Background technique

Currently, mostly using cast iron pipe, pipe of cement, steel skeleton pipe, double-wall corrugated pipe etc. in blowoff line.Above-mentioned several pipes Road has good practicability, but there are still apparent disadvantages.Cast iron pipe and pipe of cement, weight is big, and installation is carried and is inconvenient； Steel skeleton pipe is at high cost, and production bore is limited, is not easy to promote the use of；Double-wall corrugated pipe pressure-bearing is limited, and mechanical strength is not high. The intensity of pvc pipe is too low, generally requires around to irrigate cement in actual use to enhance compressive resistance, long construction period, Er Qiecai Matter itself has certain pollution；Pipe of cement is too heavy, and installation and transportation are inconvenient.The roughness coefficien of these traditional piping materials is high, Absolute roughness is big, and wall surface resistance is big.The glass reinforced plastic pipe of the prior art, the drawbacks such as it is poor that there is also anti-pressure abilities, and service life is short.

Utility model content

In order to overcome the drawbacks described above of the above-mentioned prior art, the utility model provides a kind of blowdown dedicated pipe.

In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:

A kind of blowdown dedicated pipe, including tube body, body central are flexible pressure-resistant polyethylene liner layer 1, polyethylene liner layer 1 Outside be outer protection resin layer 2, it is outer protection resin layer 2 with a thickness of 2 millimeters, on the outside of outer protection resin layer 2 be resin fibre glass Glass steel enhancement layer 3；It is slow pressurized layer 4 on the outside of resin fibre glass reinforced plastic enhancement layer 3, the slow pressurized layer 4 is made of fire blanket, passes through Epoxy resin gluing layer is fixed on the outer surface of resin fibre glass reinforced plastic enhancement layer 3；It is erosion resistant coating 5, anti-corrosion on the outside of slow pressurized layer 4 Layer 5 is made of glass fibre mat, is fixed on slow 4 outside of pressurized layer by epoxy resin gluing layer, is stainless on the outside of erosion resistant coating 5 Steel steel pipe 6；Tube two sides are bell and spigot frame, and the stainless-steel pipe 6 of the end of tube body side extends to form bellmouth steel loop outward Set 7, the inside necking of stainless-steel pipe 6 of the tube body end of the other side form socket steel ring set 9, the pipe where socket steel ring set 9 Body end is provided with rubber washer 8, the downward concave shape in side of socket steel ring set 9 and contact site towards the erosion resistant coating of erosion resistant coating At the first groove, the second groove, the first O-ring seal 11, the second O-ring seal are respectively set in the first groove, the second groove 12, the first O-ring seal 11, the second O-ring seal 12 end face be attached to the inner surface of bellmouth steel ring cap 7；Stainless-steel pipe 6 With a thickness of 2.5-3.0mm, the outside of stainless-steel pipe 6 has reinforcing rib.

Preferably, the section of bellmouth steel ring cap 7 has inclined-plane, convenient for the smoothly insertion of socket steel ring set 9, makes making for drainpipe With more convenient.

A kind of blowdown dedicated pipe body central of the utility model is flexible pressure-resistant polyethylene liner layer, and polyethylene does not dissolve in Water and there is good elastoplasticity, retain a part of expansion space in advance for pipe inner product water freezing, play mitigation manage in water freezing produce The function of raw volume expansion.The combination of polyethylene liner layer and outer protection resin layer can both guarantee inside pipeline to the resistance to of sewage Corrosive nature, and polyethylene liner layer can be enhanced to the impact resistance and cushion performance of sewage, prolong the service life.Slow pressurized layer The protection to inner tube can be played, while guaranteeing the compressive property and outside corrosion resistance of integrated piping.It is combined by multilayer, Substantially increase the intensity of pipeline.With stronger corrosion resistance and higher intensity, long service life.

Detailed description of the invention

Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application, The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model It limits.In the accompanying drawings:

Fig. 1 is the schematic cross-section of the utility model blowdown dedicated pipe.

Fig. 2 is the undertaking schematic diagram of the utility model blowdown dedicated pipe.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described Embodiment is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model Embodiment, those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work, all belongs to In the range of the utility model protection.

Referring to Fig. 1, one of the present embodiment blowdown dedicated pipe, including tube body, body central are the poly- second of flexible pressure-resistant Alkene liner layer 1, polyethylene is not soluble in water and has good elastoplasticity, and it is empty to retain a part expansion in advance for pipe inner product water freezing Between, it plays to mitigate and manages the function that interior water freezing generates volume expansion.

It is outer protection resin layer outside polyethylene liner layer 1, polyethylene liner layer 1 can guarantee the corrosion resistance of pipeline Can, outer protection resin layer 2 with a thickness of 2 millimeters, the combination of polyethylene liner layer 1 and outer protection resin layer 2 can both guarantee to manage To the corrosion resistance of sewage inside road, and the impact resistance and cushion performance of 1 pair of sewage of polyethylene liner layer can be enhanced, prolonged Long life.It is resin fibre glass reinforced plastic enhancement layer 3 on the outside of outer protection resin layer 2, the resin fibre glass reinforced plastic contains 25- 30% resin, resin can be epoxy resin, and fiber can be glass fibre or carbon fiber, and resin fibre glass reinforced plastic is reinforced 3 outside of layer is slow pressurized layer 4, and the slow pressurized layer 4 is made of fire blanket, is fixed on resin fibre glass by epoxy resin gluing layer On the outer surface of glass steel enhancement layer 3, delaying is erosion resistant coating 5 on the outside of pressurized layer 4, and erosion resistant coating 5 is made of glass fibre mat, passes through ring Oxygen resin adhesive layer is fixed on 4 outside of slow pressurized layer, is stainless-steel pipe 6 on the outside of erosion resistant coating 5, stainless-steel pipe 6 with a thickness of 2.5-3.0mm can play the protection to inner tube, while guarantee the compressive property and outside corrosion resistance of integrated piping, can Effectively to play the role of bearing from geostatic pressure.Further, the outside of stainless-steel pipe 6 has reinforcing rib (in figure It is not shown), the resistance to compression effect of pipeline can be enhanced.

As shown in Fig. 2, the tube two sides of the blowdown dedicated pipe of the utility model are bell and spigot frame, the end of tube body side Stainless-steel pipe 6 extends to form bellmouth steel ring cap 7, the inside necking shape of stainless-steel pipe 6 of the tube body end of the other side outward At socket steel ring set 9, the tube body end where socket steel ring set 9 is provided with rubber washer 8, and rubber washer 8 can be further strong Change the sealing performance of tube body, enhances safety.Socket steel ring set 9 is downward with the side of contact site towards the erosion resistant coating of erosion resistant coating Recess forms the first groove, the second groove, and it is O-shaped that the first O-ring seal 11, second is respectively set in the first groove, the second groove Sealing ring 12, the first O-ring seal 11, the second O-ring seal 12 end face be attached to the inner surface of bellmouth steel ring cap 7.First O The use of type sealing ring 11, the second O-ring seal 12 has the spy of the symmetrical and two-way self-sealing performance of inside and outside water-pressure sealed intensity Point can greatly limit corrosion in water tubular body and/or interface on the outside of drainpipe.

As shown in Figure 2, it is preferable that the section of bellmouth steel ring cap 7 has inclined-plane, convenient for the smoothly insertion of socket steel ring set 9, makes Drainpipe using more convenient.

It should be understood that although with reference to its illustrative embodiment, to the utility model carry out it is particularly shown and Description, it should be understood by those skilled in the art that without departing substantially from by the utility model as defined in the claims Spirit and scope under conditions of, can wherein carry out various forms and details variation, various embodiments can be carried out Any combination.

Claims (2)

1. a kind of blowdown dedicated pipe, it is characterised in that: including tube body, body central is flexible pressure-resistant polyethylene liner layer (1), is gathered Be outer protection resin layer (2) outside ethylene liner layer (1), it is outer protect resin layer (2) with a thickness of 2 millimeters, outer protection resin layer (2) outside is resin fibre glass reinforced plastic enhancement layer (3)；It is slow pressurized layer (4) on the outside of resin fibre glass reinforced plastic enhancement layer (3), it is described Slow pressurized layer (4) are made of fire blanket, and the appearance of resin fibre glass reinforced plastic enhancement layer (3) is fixed on by epoxy resin gluing layer On face；It is erosion resistant coating (5) that erosion resistant coating (5) is made of glass fibre mat on the outside of slow pressurized layer (4), passes through epoxy resin gluing Layer is fixed on the outside of slow pressurized layer (4), is on the outside of erosion resistant coating (5) stainless-steel pipe (6)；Tube two sides are bell and spigot frame, tube body one The stainless-steel pipe (6) of the end of side extends to form bellmouth steel ring cap (7) outward, the stainless steel steel of the tube body end of the other side Managing (6), inwardly necking forms socket steel ring set (9), and the tube body end where socket steel ring set (9) is provided with rubber washer (8), The contact site of socket steel ring set (9) and erosion resistant coating is recessed downwards towards the side of erosion resistant coating and forms the first groove, the second groove, The first O-ring seal (11), the second O-ring seal (12), the first O-ring seal are respectively set in first groove, the second groove (11), the end face of the second O-ring seal (12) is attached to the inner surface of bellmouth steel ring cap (7)；Stainless-steel pipe (6) with a thickness of The outside of 2.5-3.0mm, stainless-steel pipe (6) have reinforcing rib.

2. a kind of blowdown dedicated pipe according to claim 1, it is characterised in that: the section of bellmouth steel ring cap has inclined-plane.