2526results about "Rigid pipes" patented technology

The present invention provides a rubber member having excellent corrosion resistance and a semiconductor manufacturing–related device using the same. Provided is a rubber member that includes an olefin-based rubber, the rubber member being at least one member selected from the group consisting of building material members, mobility members, aerospace members, semiconductor members, and information communication members, and the rubber member coming into contact with a corrosive substance.

The invention discloses a high-strength modified high-density polyethylene double-wall corrugated pipe and a preparation method thereof, and relates to the technical field of high-density polyethylene double-wall corrugated pipes. The high-strength modified high-density polyethylene double-wall corrugated pipe is prepared from the following components: high-density polyethylene, ultra-high molecular weight polyethylene, reinforcing filler, a compatilizer, an antioxidant and a lubricant. The preparation method comprises the following steps: reinforcing filler surface modification; all the components are subjected to melt blending to prepare the modified composite material; the modified composite material is subjected to extrusion molding to form the double-wall corrugated pipe; and cooling, shaping and cutting. The UHMWPE and the reinforcing filler are introduced, and the compatilizer is combined to improve interface bonding, so that macromolecular chains of the UHMWPE are entangled to form a tough network, the reinforcing filler provides rigid support, and the high-temperature modulus and creep resistance are synergistically improved; high-temperature oxidative degradation is effectively inhibited through the antioxidant, the slow crack growth resistance time is prolonged, and the service life is prolonged.

The invention belongs to the technical field of 3PE corrosion prevention, and particularly relates to a high-temperature-resistant and cathodic disbonding-resistant 3PE corrosion-resistant pipeline and a preparation method thereof. A pipeline epoxy bottom layer, a middle adhesive layer and a polyethylene surface layer are subjected to systematic chemical synergistic modification, specifically, the epoxy bottom layer is modified with phenolic resin and amino silane, and a heat-resistant compact barrier is formed; the middle layer reacts with maleic anhydride grafted polyethylene through amino silane to construct a chemical bridge for simultaneously connecting the upper layer and the lower layer; the surface layer is grafted with high-density polyethylene through fluoroprimary amine modified glycidyl methacrylate, and a hydrophobic and oleophobic chain and a reactive functional group are introduced; according to the structure, through the synergistic effect of the high-temperature stability of the bottom layer, the two-way chemical bridging capacity of the middle layer and the inert hydrophobic characteristic of the surface layer, the long-term use temperature upper limit, the stripping resistance and the medium infiltration resistance of the pipeline are improved, and a solution is provided for long-term protection of the pipeline in the severe environment.

The invention discloses a flexible hydrogen transport PE composite pipe. The flexible hydrogen transport PE composite pipe is of a three-layer structure, raw material selection, carbon fiber pretreatment, filler pulping, coating treatment and co-extrusion forming. The method solves the problems that an existing preparation method is uneven in material mixing and poor in pipe size precision. The invention further discloses the flexible hydrogen transport PE composite pipe, the flexible hydrogen transport PE composite pipe is prepared by the preparation method of the flexible hydrogen transport PE composite pipe, and the mechanical property is also improved while the flame-retardant, antistatic and compact properties are improved.

An aircraft pipework assembly is disclosed including an aircraft structure; pipework; a fixture arrangement between the pipework and the aircraft structure; a tie rod connecting the pipework to the aircraft structure; a first tie rod bearing which connects the tie rod to the pipework; and a second tie rod bearing which connects the tie rod to the aircraft structure. The fixture arrangement includes a spherical bearing, the spherical bearing comprising a ball mounted to the pipework, and a housing coupled to the aircraft structure. The ball includes a convex spherical bearing surface; and the housing comprises a concave spherical bearing surface which mates with the convex spherical bearing surface of the ball. The fixture arrangement is configured to enable the pipework to translate relative to the ball in an axial direction aligned with a longitudinal axis of the pipework.

A fiber reinforced laminate pipe joint can include a first pipe, a second pipe, where the first pipe and the second pipe can be fiber reinforced laminate pipes, and a pipe joint insert. The pipe joint insert can be partially inserted inside the first pipe and can be partially inserted inside the second pipe. The pipe joint insert can be bonded to the first pipe and the second pipe, where the pipe joint insert can include a fiber reinforced laminate, where a bonding agent in the fiber reinforced laminate of the pipe joint insert can be distinct from a bonding agent used to bond the pipe joint insert to the first pipe.

The invention discloses a high-density polyethylene silicon core pipe and a preparation method thereof, and relates to the technical field of silicon core pipes. The high-density polyethylene is subjected to modification treatment in different modes to obtain different modified high-density polyethylene; different modified high-density polyethylene is used as a main component, and a silicon core pipe outer-layer mixture and a silicon core pipe inner-layer mixture are prepared respectively; finally, the silicon core pipe outer layer mixture and the silicon core pipe inner layer mixture are subjected to melt co-extrusion, Si-O-C chemical bonding is generated on the inner layer and the outer layer, and the high-density polyethylene silicon core pipe is obtained. The high-density polyethylene silicon core pipe prepared by the invention is very high in interlayer bonding strength and very excellent in flame retardant property and mechanical property.

The invention discloses a high-strength composite pipe manufacturing method, and relates to the technical field of composite pipe production, and the method comprises the following steps: S1, inner ring welding: arranging and guiding inner ring reinforcing warps through a front end winding welding seat, and welding inner ring spiral wefts to the outer sides of the inner ring reinforcing warps through electric sparks, s2, mesh belt winding: wrapping a middle-layer steel wire mesh belt on the outer side of an inner-ring spiral weft through a middle-layer mesh belt winding welding seat, welding the middle-layer steel wire mesh belt on the outer side of the inner-ring spiral weft through electric sparks, and winding the middle-layer steel wire mesh belt on the outer side of the inner-ring spiral weft through a middle-layer steel wire mesh belt winding welding seat; the operation stability of production equipment is improved, the convenience of replacement and adjustment of the mesh belt storage roller is effectively improved, a mesh framework is formed by continuous online welding of warp-direction steel wires and inner and outer weft-direction steel wires, and the mesh framework and steel-plastic formed by one-time co-extrusion composite molding of polyethylene plastic penetrate through each other in a three-dimensional mode and are embedded with each other to jointly bear the working load.

The invention discloses steel, a steel pipe for hydrogen conveying and a preparation method of the steel pipe, and belongs to the technical field of pipelines. The steel comprises, by mass, not larger than 0.05% of C, 0.1%-0.3% of Si, 0.8%-1.3% of Mn, not larger than 0.02% of P, not larger than 0.01% of S, not larger than 0.03% of Al, not larger than 0.35% of Ni, not larger than 0.3% of Cr, not larger than 0.25% of Cu, not larger than 0.05% of V, not larger than 0.1% of Nb, not larger than 0.3% of Mo, not larger than 0.04% of Ti, not larger than 0.0003% of B and the balance Fe. The steel is suitable for preparing the hydrogen conveying pipeline, so that the steel is good in compatibility with the hydrogen environment and has the characteristics of excellent hydrogen induced cracking resistance, strength and toughness.

The utility model discloses a composite high-strength finish rolling steel pipe which comprises a pipe body, a bottom pipe is arranged at the bottom end of the pipe body, a top pipe is arranged at the top end of the pipe body, reinforcing ribs are arranged in the pipe body and distributed in an annular matrix mode around the center of the pipe body, and tension bands are fixedly connected to the outer surfaces of the reinforcing ribs. Inner rings of the reinforcing ribs are fixedly connected with stirrups; the bottom pipe is arranged at the bottom end of the pipe body, the top pipe is arranged at the top end of the pipe body, the reinforcing ribs welded in the bottom pipe can penetrate through the pipe body, the tension bands serve as stress points between the inner wall of the pipe body and the reinforcing ribs in the pipe body, the reinforcing ribs are fixedly supported through the tension bands, and then single-point force can be transmitted to all the reinforcing ribs and the tension bands; and the effect of dispersing transverse force is achieved, the transverse stress strength of the pipe body is improved, and the situation that the pipe body is bent and sunken due to transverse stress is reduced.

The invention relates to the technical field of basalt fiber reinforced composite material pipelines and preparation methods thereof, and discloses a pipeline named as a basalt fiber reinforced composite material pipeline and a preparation method thereof and a preparation method thereof. The invention aims to overcome the defects of continuity, interface bonding and mechanical properties of the conventional basalt fiber reinforced composite material pipeline. The pipeline is composed of a lining layer, a basalt fiber winding reinforcing layer and an outer protective layer, the reinforcing layer is formed by compounding basalt fiber bundles subjected to surface treatment and a resin matrix, and the reinforcing layer is of a multi-layer structure with different winding angles. The preparation method comprises the following steps: roughening the inner lining layer, infiltrating and accurately winding the fiber bundles, performing multi-section curing and forming the outer protective layer. According to the scheme, the macroscopic mechanical property of the pipeline is remarkably improved, the interface combination of fibers and a matrix is optimized, the integrity of the fibers is kept, efficient preparation is achieved, and the pipeline has the advantages of being excellent in corrosion resistance and ultraviolet resistance, long in service life and the like.

A composite tube assembly includes a first composite tube having a first tubular core and a first outer composite material. The first outer composite material is bonded to a first outer face of the first tubular core. The composite tube assembly further includes a second composite tube having a second tubular core and a second outer composite material. The second outer composite material is bonded to a second outer face of the second tubular core. The second composite tube is coupled to the first composite tube.

The invention discloses a polypropylene modified plastic pipe and a preparation method thereof and relates to the technical field of pipeline materials. The plastic pipe comprises an inner-layer structure and an outer-layer structure, wherein the inner layer is formed by mixing and extruding fiber powder, an interface improving agent (50-60% of a coupling agent, 30-40% of a dispersing agent and 5-10% of a defoaming agent) and polypropylene random copolymer; and the outer layer is formed by axially and uniformly distributing glass fibers or basalt fibers on the surface of the inner pipe through a yarn splitting plate, and co-extruding and coating the glass fibers or basalt fibers with fiber powder, an interface improver and polypropylene. During preparation, a double-extruder co-extrusion process is adopted, the extrusion temperature of the inner layer is 180-200 DEG C, the extrusion temperature of the outer layer is 190-210 DEG C, and the cooling rate is greater than or equal to 10 DEG C / min. Through optimization of the axial continuous fiber reinforced layer and the interface, the axial tensile strength (larger than or equal to 45 MPa) and the ring stiffness (larger than or equal to 50 kPa) of the pipeline are remarkably improved, and the problems of layering deformation and cracking of a traditional pipeline are solved.

The invention relates to the technical field of bamboo winding composite material pipelines, and discloses a bionic bamboo joint connector of a bamboo winding pressure pipeline and a processing technology of the bionic bamboo joint connector, the bionic bamboo joint connector is arranged at the connecting part of two sections of axially aligned bamboo winding pipelines, and the bionic bamboo joint connector sequentially comprises an inner lining layer and an outer lining layer from inside to outside, the embedded steel bar reinforcing layer consists of a reinforcing material and embedded steel bar glue; the film covering restraint layer is composed of fiber reinforced cloth and impregnating resin; the socket fastening layer is composed of a metal fastening piece which is connected with the two pipes in a bridging mode. A protective layer is poured, and the whole connector is wrapped with polymer modified cement mortar; the invention further provides a processing technology of the bionic bamboo joint connector. The processing technology comprises the following six steps of pretreatment, lining welding, embedded steel bar reinforcement, film covering constraint, socket fastening and pouring protection. Through the composite structure of crossed truss type embedded steel bars, polymer modified mortar pouring and socket fastening, the connector obtains high connection strength, excellent anti-drawing performance and long-term durability.

This invention provides a method for producing small-diameter, thick-walled near-α-type titanium alloy tubing and its application. This method, through the use of cladding and heated rolling, increases the deformation per rolling pass, reduces the number of rolling passes, and results in a finer microstructure and better mechanical properties in the heated-rolled tubing. Simultaneously, the composite material composed of the cladding layer and silica aerogel effectively prevents the alloy rod from contacting air, avoiding further surface oxidation and reducing the thickness of the oxide layer on the rod surface. Furthermore, the composite material forms a "thermal insulation layer" on the surface of the alloy rod, preventing large temperature differences between the surface and core during heated rolling, thus ensuring better microstructure uniformity and surface quality. In this invention, the cladding process expands the selection of heating furnaces and reduces equipment requirements.

The invention provides an eccentric reducing double-wall pipe adapter and a reducing double-wall eccentric connecting pipeline, and solves the problem of medium retention caused by concentric arrangement of an adapter in the prior art and the problem that the smoothness of a medium conveying channel and the sealing performance of a gas circuit are difficult to consider at the same time. The eccentric reducing double-wall pipe adapter comprises a connecting flange, one end of the connecting flange is connected with a large-aperture double-wall pipeline, and the connecting flange comprises an inner ring, an outer ring and a first gas path channel arranged between the inner ring and the outer ring; the eccentric flange comprises a large pipe connecting end, a small pipe connecting end, a first conveying channel penetrating through the large pipe connecting end and the small pipe connecting end and a second gas path channel, the large pipe connecting end is connected with the other end of the connecting flange, and the second gas path channel is communicated with the first gas path channel; the first conveying channel comprises a large-diameter opening formed in the large pipe connecting end and a small-diameter opening formed in the small pipe connecting end and eccentrically arranged with the large-diameter opening, and the bottom of the small-diameter opening is flush with the bottom of the large-diameter opening.

The invention discloses pipeline steel for an acid environment, a bimetal metallurgy composite pipe and a preparation method of the bimetal metallurgy composite pipe, and relates to the technical field of manufacturing of pipes for oil and gas gathering and transportation. The pipeline steel for the acid environment comprises the following chemical components in percentage by mass: 0.07%-0.11% of C, 0.25%-0.37% of Si, 1.15%-1.35% of Mn, less than or equal to 0.012% of P, less than or equal to 0.003% of S, 0.01%-0.03% of Nb, 0.015%-0.03% of Al, 0.01%-0.025% of Ca, less than or equal to 0.005% of N, less than or equal to 0.002% of O, less than or equal to 0.00015% of H, less than or equal to 0.007% of O + H + N and the balance of Fe and inevitable impurities. The pipeline steel for the acid environment has enough strength, high toughness and good hydrogen sulfide stress corrosion resistance and hydrogen induced cracking resistance, and can meet the requirements of gathering and transportation of corrosive oil and gas.

The embodiment of the invention provides a plastic-coated steel pipe and a plastic coating process thereof, and relates to the technical field of plastic-coated steel pipes. The plastic-coated steel pipe comprises a steel pipe base body, a metal transition layer, an inner anticorrosive coating, a fiber reinforced winding layer and an outer protective coating are sequentially arranged on the outer surface of the steel pipe base body from inside to outside, and the metal transition layer is a nickel-chromium-aluminum-yttrium alloy layer and is formed on the surface of the steel pipe base body through a supersonic plasma spraying process. And the inner anticorrosive coating is formed by a mixture of bisphenol F type epoxy resin and novolac epoxy resin, and is doped with silicon nitride and zirconium oxide composite nanoparticles subjected to surface treatment. By arranging a multi-stage composite structure of the metal transition layer, the high-temperature-resistant anti-corrosion coating, the fiber reinforcement layer and the self-repairing outer layer and arranging the detachable heat insulation sheath, the interface bonding strength, heat resistance, mechanical damage resistance and corrosion resistance of the plastic-coated steel pipe are improved; and the service life of the composite material in high-temperature, strong-corrosion and complex construction environments is effectively prolonged.

The utility model belongs to the technical field of liquid hydrogen stations, and particularly relates to a liquid hydrogen station BOG recycling system which comprises a liquid hydrogen tank car, a liquid hydrogen storage tank, a hydrogen liquefying device and a hydrogen recycling device. A gas outlet of the liquid hydrogen storage tank is respectively connected with the hydrogen liquefaction device and the hydrogen recovery device through a BOG gas phase recovery pipeline, and a liquid outlet of the hydrogen liquefaction device is connected with a liquid inlet of the liquid hydrogen storage tank. According to the system and the control scheme, BOG generated in the operation process of the liquid hydrogen filling station is reasonably recovered, complete recovery and efficient storage of BOG hydrogen are achieved, the system and the control scheme are high in automation degree and good in applicability, the on-site operation time of operation personnel is shortened, and the production efficiency is improved. And the overpressure emission or direct emission of hazardous gases such as BOG (boil-off gas) in the transportation process of the liquid hydrogen tank car is reduced.

A recreational vehicle waste delivery system with lengths of 3D cylindrical non-flexible tube and of 3D cylindrical flexible-tube, a first-coupler and, a second-coupler. The first coupler, the at least one flexible-tube, the second-coupler and the at least one flexible-tube in combination are able to be removably couplable modularly in series to provide an adjustable, modular waste management system for delivering waste from an rv to an in-ground sewer connection when engaged with a disposal fitting of the rv.

The invention belongs to the technical field of deep sea vibration and noise reduction functional shells, and particularly relates to a vibration and noise reduction composite pipe and a preparation method thereof.The vibration and noise reduction composite pipe comprises an outer layer, a middle layer and an inner layer which are sequentially connected together in a sleeved mode; the outer layer is a carbon fiber resin composite material pipe; the inner layer is a 316L stainless steel pipe; the middle layer is arranged between the outer layer and the inner layer and comprises a micro-perforated aluminum pipe, a Vonass flower basket imitating structure and a perforated aluminum pipe which are sequentially connected in a sleeved mode from outside to inside, and graphene epoxy resin is filled between the micro-perforated aluminum pipe and the Vonass flower basket imitating structure and between the Vonass flower basket imitating structure and the perforated aluminum pipe. According to the invention, through the application of the Vonass flower basket imitating structure and the micro-perforated aluminum pipe, the broadband sound absorption and noise reduction effect is obviously improved, the performance is excellent in the aspect of low-frequency noise absorption, and compared with a traditional honeycomb structure, the honeycomb structure has obvious advantages; the middle layer can absorb sound waves in the frequency range of 50-5000 Hz, and the low-frequency absorption efficiency is improved by 40%.

The invention discloses a bamboo-like structure annularly-reinforced bamboo composite pipe and a preparation method thereof.The bamboo composite pipe sequentially comprises a lining layer, a reinforcing layer, an annular reinforcing layer and an outer protective layer from inside to outside, the thickness of the inner reinforcing layer, the thickness of the middle reinforcing layer and the thickness of the outer reinforcing layer are sequentially reduced, and radial impact resistance of the bamboo composite pipe is reinforced; according to the bamboo composite pipeline, the natural structure of'sparse inside and dense outside 'and'bending without bending' of the bamboo vascular bundle is reproduced, the circumferential stress of the pipeline can be effectively and gradually transmitted to the outer layer from the inner layer of the pipeline wall in the circumferential bearing process, local cracking caused by stress concentration is avoided, and the circumferential impact resistance and bending resistance of the bamboo composite pipeline can be remarkably improved. The circumferential reinforcing layer imitates the natural structure of bamboo wood, the biological structure characteristic that bamboo joints are periodically distributed in the length direction of bamboo stalks is reproduced, the radial ring stiffness and the deformation resistance of the bamboo composite pipe can be remarkably improved, and the defect that the transverse strength of the bamboo composite pipe is insufficient is overcome.

The conveying and injecting system comprises a main pipeline, a cooling device and a supercharging device, the main pipeline is used for receiving supercritical carbon dioxide from a carbon dioxide capturing device, and the other end of the main pipeline is connected with an inlet of the cooling device; the cooling device is used for cooling the supercritical carbon dioxide to a preset temperature, so that the supercritical carbon dioxide is converted into dense-phase carbon dioxide, an outlet of the cooling device is connected with an inlet of the pressurizing device, an outlet of the pressurizing device is used for being connected with an injection well, and the pressurizing device is used for pressurizing the dense-phase carbon dioxide to a preset pressure. According to the conveying and injecting system, carbon dioxide is conveyed to the vicinity of a sealing place in a supercritical phase state in a long distance in the main pipeline and then conveyed to the injecting well after being cooled and pressurized, and the pressure of supercritical carbon dioxide is smaller than that of dense-phase carbon dioxide, so that the risk that the main pipeline is broken can be reduced; and the stability and safety of carbon dioxide conveying are improved.

A bio-based electrically conductive polymer composite material is provided. The bio-based electrically conductive polymer composite material is useful as a bio-based anti-static inner layer in an aerospace hose.

The invention provides a production method and application of a small-diameter thick-wall near-alpha type titanium alloy pipe. According to the method, the deformation of rolling passes can be increased and the number of times of rolling can be reduced by adopting coating strip temperature rolling, and the strip temperature rolled pipe is fully refined in structure and better in mechanical property. Meanwhile, a multi-layer material composed of the coating layer and the silicon dioxide aerogel can effectively prevent the alloy bar from making contact with air, further surface oxidation is avoided, and the thickness of an oxidation layer on the surface of the bar is reduced. In addition, a heat preservation layer can be formed on the surface of the alloy bar through the multi-layer material, large temperature difference cracking of the surface and the core of the bar is avoided during rolling with temperature, and therefore it is guaranteed that the structure uniformity of the bar is better, and the surface quality is better. In the invention, after the alloy bar is coated, the selection of a heating furnace is expanded, and the use requirement of equipment is reduced.

The present invention belongs to the field of hydrogen transportation, and specifically relates to a flexible hydrogen transmission pipe, a preparation method thereof, and a hydrogen leakage detection system. The flexible hydrogen transmission pipe provided by the present invention adopts a structure mainly made of non-metallic materials, which fundamentally solves the problem of hydrogen embrittlement and improves the safety and reliability of the hydrogen transmission pipe during long-term use. In the present invention, the internal pressure-bearing layer is reinforced with high-strength fibers, which can withstand high internal hydrogen pressure after weaving, ensuring the structural integrity of the pipeline under high-pressure transmission conditions; at the same time, the internal pressure-bearing layer is composited with optical fibers, which can monitor the status of the pipeline to prevent damage by a third party. The optical fiber monitoring system can accurately locate the position of the pipeline in real time and conduct all-round monitoring of the pipeline status, promptly discover potential safety hazards, provide maintenance personnel with accurate fault information, facilitate timely maintenance measures, and reduce accident risks and maintenance costs.

The invention provides a metal type flux-cored wire, a bimetal composite pipe for high-pressure hydrogen storage and transportation and a preparation method of the bimetal composite pipe. In the metal type flux-cored wire, a flux core comprises the following components in percentage by mass: 26%-34% of Cr powder, 12%-20% of Fe50Ni50 powder, 4.5%-9.5% of Fe20Mn80 powder, 1.0%-2.0% of Fe30Si70 powder, 0.20%-0.30% of CeN powder, 0.40%-0.50% of NbN powder, less than or equal to 0.1% of Re2O7 powder and the balance of Fe powder; the outer skin is a 314 austenitic stainless steel strip and comprises the following alloy components in percentage by mass: 24%-26% of Cr, 19%-21% of Ni, 1%-2% of Mn, 2%-3% of Si, 0.08%-0.10% of C, less than or equal to 0.0012% of S, less than or equal to 0.010% of P and the balance of Fe. The metal type flux-cored wire can be used for preparing a bimetal composite pipe used in a high-pressure or corrosive environment.

An aircraft assembly is disclosed including a wing structure, and a pipe assembly rotatably coupled to the wing structure by a fixture arrangement. The pipe assembly extends along a longitudinal direction, the fixture arrangement configured to restrict movement of at least a portion of the pipe assembly in the longitudinal direction relative to the wing structure and allow rotation of the pipe assembly relative to the wing structure.

The invention belongs to the technical field of stainless steel pipe manufacturing, and particularly relates to a thin-wall stainless steel pipe for fluid conveying and a preparation method and application thereof. The thin-wall stainless steel pipe for fluid conveying comprises the following components in percentage by mass: 0.01 to 0.03 percent of C, 0.5 to 0.7 percent of Si, 3 to 6 percent of Mn, less than or equal to 0.04 percent of P, less than or equal to 0.01 percent of S, 20 to 25 percent of Cr, 8 to 12 percent of Ni, 0.2 to 0.5 percent of N, 2 to 3 percent of Mo, 0.05 to 0.1 percent of Nb, 0.05 to 0.15 percent of Ce, 0.05 to 0.2 percent of Zr, 0.01 to 0.02 percent of Te and the balance of Fe and inevitable impurities. According to the thin-wall stainless steel pipe, the thin-wall stainless steel pipe which is excellent in chloride ion resistance and oxalic acid resistance and is used for fluid conveying is obtained by optimizing the raw material formula, and the thin-wall stainless steel pipe has a wide application prospect in resident fuel gas conveying.

The utility model provides a tough HDPE plastic pipe, and relates to the technical field of HDPE pipes. The tough HDPE plastic pipe is obtained. According to the tough HDPE plastic pipe, the reinforcing ribs with the non-circular cross sections are arranged in the pipe body, so that external force impact can be more effectively dispersed and absorbed, the overall impact resistance of the pipe body is improved, especially under the condition of local stress, local damage caused by stress concentration is avoided, meanwhile, the wall thickness and the strength of the pipe are increased due to the existence of the reinforcing ribs, and the service life of the pipe is prolonged. Meanwhile, the middle layer made of the reinforced fiber material is arranged between the inner layer and the outer layer, so that external impact force can be effectively dispersed and absorbed, the impact resistance of the pipe is effectively improved, breakage caused by local stress concentration is prevented, the compressive strength of the pipe is improved, and the service life of the pipe is prolonged. The stability of the pipe under long-term high pressure is improved, the service life of the pipe is prolonged, and actual application is facilitated.