CN207454962U - Pipeline and the conduit assembly with the pipeline - Google Patents

Abstract

The utility model is related to be used for the pipeline field of the fluids such as water delivery, oil, disclose a kind of pipeline and the conduit assembly with the pipeline, the pipeline includes metal cylinder (2) and is sleeved on the external concrete tube (6) of the metal cylinder (2), and elastic insert (3) is provided between the metal cylinder (2) and the concrete tube (6).The pipeline of the utility model can bear high internal pressure and high external pressure, have good impervious and durability, and cost is relatively low.

Description

Pipeline and the conduit assembly with the pipeline

Technical field

The utility model is related to a kind of pipeline and the conduit assembly with the pipeline, the pipeline are used for the fluids such as water delivery, oil.

Background technology

Having many uses for pipeline is general, is used primarily in feedwater, draining, heat supply, gives gas, long distance delivery oil and natural In gas, agricultural irrigation, hydraulic engineering and various commercial plants.By taking aqueduct as an example, aqueduct be from reservoir, surge-chamber, Forebay hoists the mistake sent water and be embedded in earth and rockfill dam dam body bottom, subsurface or outdoor layout to the hydraulic turbine or by water pump Waterpipe.Available for irrigate, hydroelectric generation, urban water supply, draining, discharge silt, emptying reservoir, construction diversion cooperation spillway It drains off floodwater.

Over long distances, in the water diversion project of big flow, the selection of tubing is most important, it is both to ensure water system peace Full key, and be to determine project cost and operation funds place.The domestic pipeline for being used for water delivery at present, mainly there is steel pipe, ball Graphite cast iron pipe, Prestressed concrete cylinder pipe and sand-clad glass pipe.But defect, specific table is all individually present in these tubing It is now：Steel pipe cost is high, and critical external compressive resistance ability is poor, and working procedure is complicated；Ductile iron pipe unit length cost is higher, even It is more complicated to connect mode, and it is heavy, caliber is less than normal；Sand-clad glass pipe is flexible duct, and critical external compressive resistance ability is poor, and groove is returned It is high to fill out requirement, dosage and purposes are limited；Prestressed concrete cylinder pipe pipe of concrete outer core wind one or more layers it is pre- should Power steel wire bears higher internal water pressure and external load, due to being protected on the outside of compressor wire by dry mortar, corrosion resistance phase To poor, booster failure conditions constantly occur, and tubing durability is poor.

Therefore, be badly in need of develop one kind can bear high internal pressure and high external pressure, durability is good, the relatively low pipeline of cost, with gram Take the problem of pipeline type selecting is difficult in current engineering design.

Utility model content

The purpose of this utility model is to provide a kind of pipeline and the conduit assembly with the pipeline, the pipe against the above deficiency Road can bear high internal pressure and high external pressure, have good impervious and durability, and cost is relatively low.

To achieve these goals, the utility model provides a kind of pipeline, and the pipeline includes metal cylinder and is sleeved on institute The concrete tube outside metal cylinder is stated, elastic insert is provided between the metal cylinder and the concrete tube.

Preferably, the thickness of the elastic insert be 1mm-30mm, elasticity modulus 1MPa-5MPa, Poisson's ratio be less than or Equal to 0.5.

Preferably, the elastic insert material is the elastic material for including rubber.

Preferably, the wall thickness of the metal cylinder is：Metal cylinder internal diameter/130mm- metal cylinders internal diameter/300mm；With/ Or

The thickness of the barrel of the concrete tube is 8mm-500mm.

Preferably, it is provided with erosion resistant coating on the metal cylinder inner wall.

Preferably, the erosion resistant coating is formed by the anti-corrosion material for including concrete, and metal mesh is provided in the erosion resistant coating.

Preferably, the concrete tube is built-in with reinforcement structure, and the reinforcement structure includes, and the first reinforcing mat and second adds Strong net, first reinforcing mat and the second reinforcing mat are loop configuration, and the first reinforcing mat and the second reinforcing mat spaced radial are set It puts.

Preferably, first reinforcing mat includes the first circumferential reinforcer and circumferentially in the described first circumferential reinforcement Part inner or outer side and the more first axis reinforcers axially extended；And/or

Second reinforcing mat includes the second circumferential reinforcer and circumferentially on the inside of the described second circumferential direction reinforcer Or outside and axially extend more second axial reinforcers.

Preferably, the pipeline is additionally provided with the ribs of annular, and the ribs radially outward prolongs from the metal cylinder Extend through the elastic insert.

Preferably, the metal cylinder is steel cylinder, cast iron cylinder, glass fibre reinforced plastic cylinder.

The utility model also provides a kind of conduit assembly, which includes more above-described pipelines, every pipe Road further includes pipe joint, the pipe joint includes：

Socket ring, the socket boxing be connected to the end of one end of the metal cylinder and along the metal cylinder axially outward Extension；With

Socket hoop, the socket hoop is welded in the end of the other end of the metal cylinder, and is adapted with the socket ring；

Wherein, the socket hoop of a pipeline is connected with the socket ring of an adjacent pipeline.

Through the above technical solutions, the pipeline of the utility model convey water, oil when fluids when, can bear high internal pressure and High external pressure has good impervious and durability, and cost is relatively low, solves pipeline type selecting in current engineering design The problem of difficult.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Description of the drawings

Attached drawing is to be used to provide a further understanding of the present invention, and a part for constitution instruction, and following Specific embodiment together for explaining the utility model, but do not form the limitation to the utility model.In the accompanying drawings：

Fig. 1 is pipeline schematic cross-sectional view

Fig. 2 is the enlarged drawing at A in Fig. 1

Fig. 3 is the vertical section schematic diagram of pipeline

Fig. 4 is the enlarged drawing at B in Fig. 3

Fig. 5 is socket hoop schematic diagram

Fig. 6 is socket ring schematic diagram

Reference sign

1 erosion resistant coating, 2 metal cylinder

3 elastic insert, 4 first reinforcing mat

41 first 42 first axis reinforcers of circumferential reinforcer

The circumferential reinforcer of 5 second reinforcing mat 51 second

52 second 6 concrete tubes of axial reinforcer

7 ribs, 8 rubber ring

9 mortar, 10 socket hoop

11 socket ring, 111 groove

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be appreciated that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

The utility model provides a kind of pipeline, which includes metal cylinder 2 and be sleeved on mixed outside the metal cylinder 2 Solidifying soil cylinder 6, elastic insert 3 is provided between the metal cylinder 2 and the concrete tube 6.

For that can bear the pipeline of high internal pressure, high external pressure, common cast is steel lined reinforced concrete penstock in engineering at present And Prestressed concrete cylinder pipe, but most internal water pressures are undertaken by outer wall concrete in steel lined reinforced concrete penstock, Reinforcement stresses is very low, under the action of higher internal water pressure, certainly will increase the density of reinforcing bar around steel pipe, both uneconomical or not Convenient for construction.And the compressor wire of Prestressed concrete cylinder pipe bears the pressure and external load of higher interior water, due in advance should It protects outside power steel wire not in place, causes the corrosion failure that compressor wire is perishable and durability is poor, causes entire pipeline, booster The situation of failure constantly occurs.

The utility model can be such that pipeline bears in height by using the pipeline of the above-mentioned metal cylinder with elastic insert 3 Pressure and high external pressure.And internal pressure is undertaken by metal cylinder 2, and external pressure is undertaken by concrete tube 6, alleviates asking for pipeline external pressure unstability Topic.Reliability is high, and durability is good, can realize quick assembling, and convenient for do mechanization operation, the bore of pipeline is changeable, is applicable in Scope is very extensive.

Specifically, elastic insert 3 can separate metal cylinder 2 and concrete tube 6.It is understood that 3 energy of elastic insert Compressive deformation is enough occurred by the extruding of metal cylinder 2 and concrete tube 6 and absorbs the radial shift of metal cylinder 2, while by metal The deformation of cylinder 2 passes to concrete tube 6 with certain proportion.The transmission ratio of different 3 materials of elastic insert is different.In order to allow Transmission ratio is small, that is to say, that in order to which internal pressure is made to be undertaken by metal cylinder 2 to greatest extent, external pressure is undertaken by concrete tube 6, excellent Selection of land, the thickness of the elastic insert 3 is 1mm-30mm, and elasticity modulus 1-5MPa, Poisson's ratio is less than or equal to 0.5.Wherein, Elastic insert 3 is arranged on 2 outer circumferential surface of metal cylinder, and forms an entirety, and seamless can avoid concrete from increasing after entering gap It is big to transfer ratio, cause pipeline failure.Preferably, 3 material of elastic insert is the elastic material for including rubber, and rubber has Compression plays mould, low Poisson's ratio, low water absorbable, high-durability, meets fiery self-extinguishment, and does not generate under chutable concrete effect swollen It is swollen, it is corrosion-free to metal cylinder 2, convenient for construction.

It can be it is understood that the thickness scope of elastic insert 3 can ensure the metal cylinder 2 and coagulation of pipeline Native cylinder 6 mutually will not transfer load in a large proportion and pipeline is caused to lose under the action of pipeline internal pressure and external pressure is subject to respectively Effect.And, can cause the waste of material or stress unreasonable the problem of indefinite compared with previous common compound pipeline complex pipeline stress. And the pipeline configuration stress of the utility model is clear and definite, in Technological Economy more rationally, has stronger exploitativeness.

Further, metal cylinder 2 is primarily subjected to internal pressure.Therefore, the thickness of metal cylinder 2 depends primarily upon undertaken internal pressure Size.And various metals stress itself must not exceed defined allowable stress value, otherwise can fail.In order to ensure safety Property, the wall thickness of the metal cylinder 2 is 2 internal diameters of metal cylinder/2 internal diameters of 130mm- metal cylinders/300mm；And/or the coagulation The thickness of the barrel of native cylinder 6 is 8mm-500mm.

It further,, it is necessary to will be on 2 inner wall of metal cylinder for anti-corrosion due to pipeline for conveying the liquid such as water, oil It is provided with erosion resistant coating 1.The erosion resistant coating 1 can be the combination of one or more of mortar, concrete or corrosion-inhibiting coating.It is preferred that Ground, the erosion resistant coating 1 are formed by the anti-corrosion material for including concrete, and metal mesh is provided in the erosion resistant coating 1.Due in pipeline Liquid is conveyed, erosion resistant coating 1 needs to be immersed in pipeline, and not easy to repair.Erosion resistant coating 1 can be securely fixed in gold by metal mesh On the inner wall for belonging to cylinder 2, the service life of erosion resistant coating 1 is extended, prevents metal cylinder 2 from corroding.

Further, since pipeline is embedded in underground, the external water soil pressure that pipeline undertakes is very big.In order to strengthen concrete tube 6 The ability of external pressure is born, avoids 6 fracture failure of concrete tube, it is preferable that the concrete tube 6 is built-in with reinforcement structure, described Reinforcement structure includes, the first reinforcing mat 4 and the second reinforcing mat 5, and 4 and second reinforcing mat 5 of the first reinforcing mat is loop configuration, And first reinforcing mat 4 and 5 spaced radial of the second reinforcing mat set.Here it is possible to understand, the first reinforcing mat 4 and second adds Strong net 5 does not do sequence requirement only for each reinforcing mat is distinguished.Reinforcement structure can set individual layer, bilayer or multilayer Reinforcing mat, it is necessary to make choice according to specific circumstances.It is preferably set up between the first reinforcing mat 4 and the second reinforcing mat 5 and the two Every setting, it can achieve the effect that enhancing concrete tube 6 bears external force and will not cause the waste of material.

Further, the structure of the first reinforcing mat 4 and the second reinforcing mat 5 can be the net that twocouese extends and interlocks, Secured and good reliability.First reinforcing mat 4 includes the first circumferential reinforcer 41 and circumferentially in the described first circumferential direction 41 medial/lateral of reinforcer and the more first axis reinforcers 42 axially extended；And/or second reinforcing mat 5 includes Second circumferential reinforcer 51 and circumferentially in the described second circumferential direction 51 medial/lateral of reinforcer and axially extend more Second axial reinforcer 52.

Further, the specific material of the reinforcement structure is reinforcing bar, can also be the thick wire of comparison, metal framework Deng steel reinforcement bearing capacity is strong and more economical.

Further, when internal water pressure increases, in order to increase the security of pipeline and reliability, in order to increase pipeline Security and reliability, alleviate pipeline external pressure unstability the problem of.The pipeline is additionally provided with ribs 7, the ribs 7 It extends radially outwardly from the metal cylinder 2 through the elastic insert 3.Further, ribs 7, which can also play, prevents metal The effect of channeling water between cylinder 2 and concrete tube 6.

Preferably, the metal cylinder is steel cylinder, cast iron cylinder or glass fibre reinforced plastic cylinder (can also be engineering plastics).Corrosion resistance is good, Intensity is high, more economical.

In order to which pipeline is made to have random length to adapt to various different demands, the utility model also provides a kind of pipeline group Part, the conduit assembly include more above-described pipelines, and every pipeline further includes pipe joint, as illustrated in figures 6 and 5, institute Stating conduit assembly includes the more pipelines, and every pipeline further includes pipe joint, the pipe joint includes：11 He of socket ring Socket hoop 10, the socket ring 11 be welded in the end of one end of the metal cylinder 2 and along first metal cylinder 2 it is axial to Outer extension；The socket hoop 10 is welded in the end of the other end of the metal cylinder 2, and is adapted with the socket ring 11；Its In, the socket hoop 10 of a pipeline is connected with the socket ring 11 of an adjacent pipeline.Here, pipe joint is used and held Mouth, socket form are tightly connected by rubber ring 8.The pipe joint further includes the rubber ring 8 being arranged in groove 111, leads to It crosses socket ring 11 and groove 111 is arranged to single groove or dual-cavity, to determine the quantity of rubber ring 8.In order to enhance sealing effect Fruit prevents liquid from being revealed from seam crossing, it is preferable that groove 111 is set to be arranged to dual-cavity, and sets two rubber rings accordingly 8.The shape of rubber ring 8 is determined according to the groove shapes with socket ring 11.When rubber ring 8 is installed, rubber ring 8 is filled in recessed In slot 111, rubber ring 8 is by Bidirectional-squeezing, leakproofness height.

Socket hoop 10 and socket ring 11 be pipeline connect, the important component of sealing, in order to ensure the sealing after Tube formation Property, specifically, socket hoop 10 and the direct fit clearance of 11 working face of socket ring are more than or equal to 0.5mm, can be with less than or equal to 2mm What is understood is leakproofness when this fit clearance can preferably ensure pipeline connection.Socket hoop 10 can be and socket ring 11 The step type of cooperation, it is preferable that socket hoop 10 is bell, which plays an important role of that installation is self-positioning.Wherein, socket hoop 10 and socket ring 11 Steel material can be used.Socket hoop 10 and socket ring 11 cooperate to install and be poured between backward pipeline and pipeline Mortar 9.

The preparation method of the utility model pipeline and the conduit assembly with the pipeline is introduced in detail below：

A, hold, the preparation of socket ring

By holding, the clipped blanking of socket steel plate section bar, edge rolling welding, edging shaping, the processes such as swollen circle are made.

B, the preparation of metal cylinder 2

By processed in a hold, socket ring is on the spiral tube-making machine, roll bending is rolled into steel cylinder, side volume by design requirement Side is welded, and is made to hold, the welding fabrication of both ends one time of socket ring and metal, is then whether there is breakthrough by bulge test.

C, elastic insert is installed, poured

By elastic insert be sleeved on prefabricated metal cylinder outer circumferential surface and together with the first reinforcing mat and the second reinforcing mat by interior and It sets gradually outside, interval is set between each structure.Then the casting concrete into spaced radial, and shaken by high frequency strength It is dynamic, it is molded concrete compaction.

D, metal cylinder inner peripheral surface set metal mesh and on metal mesh coated anti-corrosion layer to get to described in the utility model Pipeline.

E, pipeline docks

Rubber ring is filled in groove, then the socket hoop of a pipeline is connected with the socket ring of an adjacent pipeline It connects.And mortar is poured into the centre of two pipelines, make two pipeline connections firm.

The utility model can make elastic insert give full play to material sheet by the way that metal cylinder, elastic insert are nested together The characteristic of body, ensure pipeline metal cylinder and concrete tube under the action of pipeline internal pressure and external pressure is subject to respectively, Bu Hui great Mutually transfer load and cause pipeline failure to ratio.It has not only played the advantage of the waterproof reliability of metal cylinder, also plays Armored concrete critical external compressive resistance, the advantage of long lifespan.Each layer stress of pipeline of the utility model is clear and definite, and it is each to have given full play to material From advantage.Such structure type can give full play to the intensity of metal cylinder, and metal cylinder is made to bear compared with high internal pressure, and the big portion of external pressure Divide and undertaken by concrete tube, solve the problems, such as existing steel pipe external pressure unstability, it can be effective compared with the steel pipe being individually laid with Reduce thickness of steel pipe, not only the service life be doubled and redoubled, investment reduction, and the scope of application is more extensive.

In addition, the pipeline of the utility model also has the following advantages that：Do mechanization operation degree is high, and pipeline is after pipe factory is prefabricated Site operation is transported to, quick assembling is realized, meets energy-saving and environment-friendly design concept, the duration can be saved, improve efficiency；It is applicable In heavy caliber, high internal pressure, high earthing water delivery engineering；After pipeline outsourcing ordinary reinforced concrete, durability is good, and reinforcing bar is not easy rusting Erosion, reliability is high, and service life is long；Anti-permeability performance is good, since the utility model using metal cylinder adds elastic insert pipe of concrete Road takes full advantage of the characteristics of metal cylinder anti-permeability performance is good, and pipeline configuration is made to have preferable anti-permeability performance；This combined type Pipeline can be mass, and construction technology uses continuous productive process.

It is further to note that the specific technical features described in the above specific embodiments, in not lance In the case of shield, can by any suitable means it be combined in order to avoid unnecessary repetition, the utility model is to each The possible combination of kind no longer separately illustrates.

In addition, it can also be combined between a variety of embodiments of the utility model, as long as it is not disobeyed The thought of the utility model is carried on the back, should equally be considered as content disclosed in the utility model.

Claims (10)

1. pipeline, which is characterized in that the pipeline includes metal cylinder (2) and is sleeved on the external concrete of the metal cylinder (2) Cylinder (6), is provided with elastic insert (3), the pipeline is additionally provided with ring between the metal cylinder (2) and the concrete tube (6) The ribs (7) of shape, the ribs (7) extend radially outwardly from the metal cylinder (2) through the elastic insert (3).

2. pipeline according to claim 1, which is characterized in that the thickness of the elastic insert (3) is 1mm-30mm, elastic Modulus 1MPa-5MPa, Poisson's ratio are less than or equal to 0.5.

3. pipeline according to claim 2, which is characterized in that elastic insert (3) material is the elasticity for including rubber Material.

4. pipeline according to claim 1, which is characterized in that the wall thickness of the metal cylinder (2) is：Metal cylinder (2) Internal diameter/130mm- metal cylinders (2) internal diameter/300mm；And/or

The thickness of the barrel of the concrete tube (6) is 8mm-500mm.

5. pipeline according to claim 1, which is characterized in that be provided with erosion resistant coating (1) on metal cylinder (2) inner wall.

6. pipeline according to claim 5, which is characterized in that the erosion resistant coating (1) is by including the anti-corrosion material of concrete It is formed, metal mesh is provided in the erosion resistant coating (1).

7. pipeline according to claim 1, which is characterized in that the concrete tube (6) is built-in with reinforcement structure, described to add Strong structure includes the first reinforcing mat (4) and the second reinforcing mat (5), and first reinforcing mat (4) and the second reinforcing mat (5) are annular Structure, and the first reinforcing mat (4) and the second reinforcing mat (5) spaced radial are set.

8. pipeline according to claim 7, which is characterized in that first reinforcing mat (4) includes the first circumferential reinforcer (41) and circumferentially in the described first circumferential reinforcer (41) inner or outer side and the more first axis axially extended Reinforcer (42)；And/or

Second reinforcing mat (5) includes the second circumferential reinforcer (51) and circumferentially in the described second circumferential reinforcer (51) inner or outer side and the more second axial reinforcers (52) axially extended.

9. pipeline according to claim 1, which is characterized in that the metal cylinder (2) is steel cylinder, cast iron cylinder or fiberglass Cylinder.

10. conduit assembly, which is characterized in that the conduit assembly includes more according to any one in claim 1-9 Pipeline, every pipeline further includes pipe joint, the pipe joint includes：

Socket ring (11), the socket ring (11) are welded in the end of one end of the metal cylinder (2) and along the metal cylinder (2) Extend axially outward；With

Socket hoop (10), the socket hoop (10) are welded in the end of the other end of the metal cylinder (2), and with the socket ring (11) it is adapted；

Wherein, the socket hoop (10) of a pipeline is connected with the socket ring (11) of an adjacent pipeline.