1365results about "Rigid pipes" patented technology

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 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 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.

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.

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 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.

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 invention provides a nano aerogel modified polyurethane thermal insulation pipe, and relates to the technical field of polyurethane thermal insulation materials. The thermal insulation pipe sequentially comprises a working pipe, a modified polyurethane thermal insulation layer and an outer protective pipe from inside to outside, the modified polyurethane thermal insulation layer is formed by composite foaming of a polyol composite material, isocyanate and nano aerogel, the nano aerogel is silicon dioxide aerogel powder or aerogel particles, the average particle size is 5-200 nm, and the specific surface area is 400-1000 m < 2 > / g; the nano aerogel is subjected to surface modification treatment, and a modifier is at least one of a silane coupling agent, a titanate coupling agent or a polyether dispersant; the dosage of the modifier is 0.5-5% of the weight of the aerogel; the thickness of the heat preservation layer ranges from 20 mm to 60 mm. By utilizing the synergistic effect of the polyurethane thermal insulation pipe and the nano aerogel, the thermal insulation performance, the economical efficiency, the mechanical performance, the process feasibility and the environmental benefits of the thermal insulation pipe are comprehensively improved, and the thermal insulation pipe has wide application prospects and remarkable economic and social benefits.

This application provides a liquid-source gas-phase transport system and method, relating to the semiconductor field. The liquid-source gas-phase transport system includes a storage device, a reaction device, and a transport pipeline. The storage device includes a container and a container heating assembly, which heats the container to vaporize the liquid raw material within it. The transport pipeline connects the container and the reaction chamber of the reaction device. The transport pipeline includes an inner tube, an outer tube sleeved around the inner tube, and a pipeline heating assembly disposed outside the outer tube. A protective gas is filled between the outer and inner tubes, and the interior of the inner tube is used to transport the gaseous raw material. The liquid-source gas-phase transport system and method provided in this application can uniformly heat the raw material, reducing the likelihood of condensation and particulate contamination. Furthermore, the liquid-source gas-phase transport system and method offer superior safety.

The application relates to the technical field of ventilation ducts, and discloses a color steel antibacterial composite air pipe. In the application, the composite air pipe body is provided with a connecting frame one at one end and a connecting frame two at the other end, connecting screw holes are arranged at the four corners of the connecting frame one and the connecting frame two, a color steel plate layer is arranged outside the composite air pipe body, a heat preservation layer is arranged on one side of the color steel plate layer, an inner layer is arranged on one side of the heat preservation layer, an antibacterial layer is sprayed on the surface of one side of the inner layer, the inner layer is made of a high polymer material, the air flow resistance can be effectively reduced, ventilation is more smooth and efficient, the antibacterial layer can inhibit bacterial breeding, effectively improve air quality, provide health guarantee for indoor environment, the heat preservation layer can reduce heat loss in the heat transmission process, meet the building energy-saving demand, and the multilayer structure cooperates with each other, not only enhances the performance of the composite air pipe body, but also improves the durability and applicability of the composite air pipe body.

Double-walled plastic corrugated pipe, wherein the double-walled plastic corrugated pipe comprises an inner wall and an outer wall, characterized in that the double-walled plastic corrugated pipe has a main pipe section, wherein a transition pipe section is connected to each of the two ends of the main pipe section and a solid-wall pipe section is connected to the outer end of each transition pipe section, wherein in the main pipe section the wave crest height of the outer wall is constant, the wave spacing is constant and the outer wall thickness is constant, and in the direction from the main pipe section to the solid-wall pipe section in the transition pipe section the wave crest height of the outer wall gradually decreases, the wave spacing gradually decreases and the outer wall thickness gradually increases.

The utility model provides a centralized blow-off pipe structure of a transmitter, which comprises a blow-off pipe, connectors are mounted at two ends of the blow-off pipe, one end of each connector is mounted on the transmitter, a sliding groove is formed in the blow-off pipe, a limiting ring is mounted in the sliding groove, a fixing plate is mounted in the blow-off pipe, and the blow-off pipe is connected with the transmitter. The fixed plate is provided with a cleaning brush, one end of the blow-off pipe is provided with an isolation pipe, the limiting ring is located on the outer side of the fixed plate, and the limiting ring and the fixed plate are mutually adsorbed. Compared with the prior art, the sewage treatment device has the following beneficial effects that dirt condensed on the inner wall of the blow-off pipe can be conveniently cleaned while sewage is discharged; and the sewage discharge efficiency in the transmitter is improved.

The invention discloses a novel composite pipe forming process, and relates to the technical field of metal material machining, and a composite pipe comprises an inner pipe made of a first metal material; the outer pipe is made of a second metal material, and the second metal material is different from the first metal material; the composite interface agent layer is arranged between the inner pipe and the outer pipe and is formed by compounding high-molecular anaerobic adhesive and high-temperature brazing filler metal; the composite interface agent layer is evenly distributed between the inner pipe and the outer pipe, the thickness of the composite interface agent layer ranges from 0.01 mm to 0.5 mm, and tight connection of the inner pipe and the outer pipe is achieved through a specific manufacturing process. By adopting the high-molecular anaerobic adhesive and the high-temperature brazing material as a composite interface agent and combining an innovative manufacturing process and a drawing process, the connecting strength and the high-temperature resistance between the inner pipe and the outer pipe are remarkably improved, the manufacturing cost is reduced, the production process is simplified, and the high-temperature-resistant composite pipe can be widely applied to various fields and replace part of traditional welding processes; good practicability and market potential are realized.

The utility model relates to the field of pipes, in particular to a stainless steel lined composite pipe. Comprising a pipe body, the pipe body comprises a stainless steel inner pipe and a plastic outer pipe wrapping the periphery of the stainless steel inner pipe, and the plastic outer pipe tightly wraps the stainless steel inner pipe and has inward contraction force. The utility model provides a stainless steel lined composite pipe. The composite pipe can improve the internal pressure resistance of a pipe.

This invention relates to the field of alloy technology, specifically disclosing a microalloyed copper alloy tube and its preparation process. The copper alloy tube is composed of the following components by mass percentage: Ni 0.05%-0.15%, Sn 0.05%-0.15%, Fe 0.01%-0.1%, P 0.02%-0.04%, with the balance being Cu and unavoidable impurities. The mass ratio of Sn to Ni is controlled between 0.5 and 3. It possesses a single face-centered cubic α-phase crystal structure, with an isometric grain ratio ≥85% in the microstructure and an average grain size of 10-20 μm. The preparation process achieves a three-dimensional strengthening effect of solution treatment, precipitation, and grain refinement. The product exhibits a tensile strength of 250-270 MPa, an elongation after fracture ≥45%, and a yield strength ratio of 0.32-0.36, combining high strength, low yield strength ratio, excellent machinability, and corrosion resistance. It is energy-efficient and easily mass-produced.

The invention provides a resin pipe, an assembly of the resin pipe and a hose, and a manufacturing method of the resin pipe, wherein the durability and the sealing performance of a joint which is externally embedded and tightly hooped by the hose can be improved, and the weight can be reduced. A metal core tube (5) is fitted within a predetermined range (X) including the entire length of a hooping range (CA) for hooping a hose (7) in the longitudinal direction of a resin joint (4) located at the tip of a resin tube (1), and axial and circumferential movement of the core tube (5) with respect to the joint (4) is restricted by a fitting groove (4a) and a fitting protrusion (4b) formed in the joint (4), and a cutout (6a) and a recess (6b) formed in the core tube (5). The joint (4) and the core tube (5) are integrated, a hose fitting (8) is externally inserted in a state in which the hose (7) is externally fitted to the joint (4), and the hose fitting (8) is hooped, thereby fixing the hose (7) to the joint (4).

The utility model provides a kind of sound insulation and noise reduction composite air pipe structure, it is related to composite air pipe technical field, including composite air pipe assembly, sound insulation component is provided on the composite air pipe assembly, the side of the composite air pipe assembly is provided with mounting assembly, the composite air pipe assembly includes air pipe main body and protective support cover.The utility model is by sound absorption box and is set in the inside of air pipe main body, cooperate sound absorption hole is favorable to absorb part noise, in turn is favorable to weaken part noise, by sound insulation board and is set in the outside of air pipe main body, it is favorable to further weaken noise, reduce its diffusion to outside, by both part is favorable to realize sound insulation and noise reduction, reduce noise transmission to external environment, in turn reduce noise pollution, by the outside of protective support cover is provided with buffer pad, it is favorable to absorb part vibration when air pipe main body operates, reduce vibration diffusion to building structure by support.

The utility model relates to the technical field of steam vapor-liquid separation devices, and provides a steam vapor-liquid separation device with a silencing function under a negative pressure condition, which comprises a tank body device, a silencing device, a spraying device, a negative pressure device and a drainage device, the silencing device is arranged on the tank body device, one part of the silencing device is located in the tank body device, the spraying device is arranged on the negative pressure device, one part of the spraying device is located in the negative pressure device, and the drainage device is located outside the tank body device and communicated with the tank body device. According to the steam-liquid separation device with the noise reduction function under the negative pressure condition, steam is conveyed into the tank body device through the noise reduction device, the steam in the tank body device is cooled through the spraying device, the steam in the tank body device is rapidly discharged through the negative pressure device, the steam in the tank body device is sealed through the water drainage device, and the steam in the tank body device is discharged through the water drainage device. Therefore, noise is reduced, and steam leakage is isolated.

According to the compression-resistant precision steel pipe, two positioning rings are symmetrically arranged in a steel pipe body, two butt-joint rings are symmetrically arranged at the two ends of the steel pipe body, butt-joint plates are arranged at the outer ends of the butt-joint rings, and the butt-joint rings can be inserted into the steel pipe body and make contact with the positioning rings; a plurality of grooves and reinforcing ribs are arranged on the outer wall of the steel pipe body, the reinforcing ribs are located in the grooves, a plurality of limiting holes are formed in the peripheral side of the butt joint plate, the two ends of each reinforcing rib can be inserted into the corresponding limiting hole, the steel pipe body is composed of an inner reinforcing layer and an outer toughness layer, the reinforcing layer made of alloy steel provides high-strength support, and the reinforcing ribs are made of steel. External pressure can be effectively resisted, and steel pipe deformation is prevented; the ductile layer made of low-carbon steel endows the steel pipe with good toughness, pressure impact can be buffered, brittle fracture is avoided, and the compressive property of the steel pipe is essentially improved through combination of the ductile layer and the steel pipe.

The utility model discloses a compression-resistant and bending-resistant double-omega-shaped seamless steel pipe which comprises a steel pipe body, the periphery of the cross section of any position of the steel pipe body comprises two straight edges and two grooves, the two straight edges are symmetrically distributed, the two grooves are symmetrically distributed, and any groove is in arc connection with the two adjacent straight edges; the two grooves and the two adjacent straight edges form a double-omega-shaped structure. Through the connection design of the two oppositely-distributed straight edges and the two oppositely-distributed grooves, the double-omega-shaped seamless steel pipe is obtained and can be telescopically adjusted in the radial direction in the high-temperature and high-pressure environment so as to bear the impact of high-temperature and high-pressure steam, so that the anti-fatigue performance of the seamless steel pipe is improved, and the service life of the seamless steel pipe is prolonged.

The application relates to the technical field of heat preservation air pipe, in particular to a high-molecular film-coated rubber and plastic heat preservation air pipe, which comprises a plate body, the plate body is quadrangular, the plate body is made of flexible rubber material, one side of the plate body is fixedly provided with a waterproof layer made of composite fluorocarbon fiber material, one side of the plate body opposite to the waterproof layer is provided with a wear-resistant layer formed by spraying high-molecular material, one side of the wear-resistant layer of the plate body is provided with a first zipper part and a second zipper part matched with each other, and a zipper head is slidably arranged on the first zipper part. The waterproof layer made of composite fluorocarbon fiber material and the wear-resistant layer formed by spraying high-molecular material are arranged, the waterproof and wear resistance of the heat preservation air pipe are improved, the problem that the heat preservation air pipe is prone to damage during installation and transportation is avoided, and the production and installation cost is saved. Meanwhile, the heat preservation air pipe can also have excellent elasticity and tensile strength.

System for conveying at least one transport capsule comprising: - a pipe (2) comprising first and second trunk (21, 22) that are reciprocally assembled; - a coating (3) whose function is structural and of at least partially waterproofing the pipe (2) and comprising tensioned ribbon-shaped means (31) that wraps and compresses at least one portion of the pipe (2). The ribbon-shaped means (31 ) is made of fibre-resin composite material and comprises said fibres impregnated in said resin.

The utility model relates to the technical field of PVC (polyvinyl chloride) pipes, in particular to a tensile PVC pipe which comprises a high-toughness inner layer, a first connecting pipe and a second connecting pipe. The outer side wall of the high-toughness inner layer is fixedly connected with a concave-convex structure layer, the first connecting pipe is fixedly connected to one end of the high-toughness inner layer, the second connecting pipe is fixedly connected to the other end of the high-toughness inner layer, and the end, close to the high-toughness inner layer, of the first connecting pipe is fixedly connected with a wear-resistant outer layer. The high-toughness inner layer preliminarily disperses tensile stress, the concave-convex structure layer is in butt joint with the recesses of the high-toughness inner layer through the protrusions to enhance binding force, the net-shaped reinforcing layer further disperses multidirectional tensile stress, and the fiber spiral layer provides additional support for the wear-resistant outer layer and effectively disperses transmitted tensile stress. Through the synergistic effect of the layers of different materials and structures, step-by-step dispersion of the tensile stress by the PVC pipe is realized.

[Solution] A hot-rolled steel plate has a predetermined chemical composition and a microstructure. In the microstructure, in a plate thickness 1 / 2 position, an area fraction of martensite is less than 3%, an area fraction of bainitic ferrite is 95% or greater, the bainitic ferrite has an average grain diameter of 6.0 µm or less, an amount of Nb precipitated as Nb carbonitride is 0.025 mass% or greater, and an amount of Nb precipitated as Nb carbonitride having a grain diameter of 20 nm or greater constitutes 50% or greater of a total mass of the Nb precipitated as Nb carbonitride. The hot-rolled steel plate has a tensile strength of 640 MPa or greater, a yield ratio of 85% or less, a Charpy impact absorbed energy at -40°C of 300 J or greater, and a percent ductile fracture (SA value) of 85% or greater as determined by a DWTT test at -40°C.

The utility model discloses an electricity-hydrogen-carbon collaborative conveying, control and utilization system, and belongs to the technical field of energy conveying. The system comprises a control system and a conveying pipeline, wherein the conveying pipeline comprises a first pipe body, a second pipe body and a third pipe body which are sequentially arranged from inside to outside; the first pipe body forms a first channel for conveying liquid hydrogen, a second channel is formed between the first pipe body and the second pipe body, the second channel is filled with liquid nitrogen, and a third channel for conveying liquid carbon dioxide is formed between the second pipe body and the third pipe body; a power cable is further arranged in the second channel and used for transmitting electric power. Cold energy in the conveying pipeline is distributed in a uniform gradient mode, multi-stage gradient utilization of the cold energy can be achieved, and the comprehensive energy utilization rate of the liquid hydrogen, liquid carbon dioxide and electric power collaborative conveying system is increased.

The utility model provides a kind of corrosion -resistant spiral steel pipe, the utility model includes spiral inner tube body and seamless outer tube body, and interlayer space is formed between spiral inner tube body and seamless outer tube body, and interlayer space is filled with heat preservation filling layer, the outer surface of spiral inner tube body and the inner surface of seamless outer tube body are equipped with corrosion -resistant coating, and the both ends of spiral inner tube body and seamless outer tube body are respectively equipped with first connecting frame and second connecting frame, the edge of first connecting frame is equipped with insert block one, the edge of second connecting frame is equipped with the slot compatible with insert block one, the edge of second connecting frame is equipped with insert block two, the edge of first connecting frame is equipped with the slot compatible with insert block two, and the opening is formed between first connecting frame and second connecting frame, and reinforcing strip is inserted in the opening.The utility model can improve environmental adaptability by double corrosion -resistant coating, optimize the sealing property of connecting structure, enhance the synergistic effect of reinforcing strip and heat preservation layer, to prolong service life and ensure operating stability.

The utility model discloses an impact-resistant plastic pipe fitting, and relates to the technical field of plastic pipe fittings, the impact-resistant plastic pipe fitting comprises a pipe body, an inner layer, a middle layer and an outer layer are respectively arranged in the pipe body, a first reinforcing layer is arranged between the inner layer and the middle layer, and a second reinforcing layer is arranged between the middle layer and the outer layer. A second reinforcing layer is installed between the middle layer and the outer layer, the outer wall of the pipe body is sleeved with a supporting ring, the supporting ring is composed of a first supporting plate and a second supporting plate, air bags are installed on the inner wall of the first supporting plate and the inner wall of the second supporting plate, a clamping groove is formed in one end of the upper portion of the second supporting plate, and a clamping groove is formed in the other end of the upper portion of the second supporting plate. Through holes are formed in the two sides of the clamping groove, and a clamping plate is installed at one end of the upper portion of the first supporting plate. According to the scheme, the problems that in the using process of an existing plastic pipe fitting, due to the fact that the strength of the plastic pipe is low, in the using process of the plastic pipe, the impact damage resistance effect is poor, the plastic pipe is prone to being damaged after being impacted, and then the plastic pipe is damaged are solved; and normal use is influenced.

This utility model discloses a pipe for homogenizing and transporting compound emulsifiers, comprising a pipe body with an inlet end and an outlet end. A flow guiding unit and a flow turbulence unit are disposed opposite each other on the inner wall of the pipe body. The flow guiding unit includes several flow guiding plates arranged circumferentially along the inner wall of the pipe body, with flow guiding rings connecting the flow guiding plates. The flow turbulence unit includes several flow turbulence plates, a rotating shaft, and flow turbulence blades. The flow turbulence plates are axially arranged along the inner wall of the pipe body, the rotating shaft passes through the flow turbulence plates, and both ends of the rotating shaft are rotatably disposed at the beginning and end ends of the flow turbulence plates. The flow turbulence blades are disposed on the surface of the rotating shaft and are located between adjacent flow turbulence plates along the interior of the pipe body. The flow guiding unit of this utility model can guide the orderly flow of fluid, and the flow turbulence unit can disrupt the original state of the fluid, promoting thorough mixing of the components of the compound emulsifier.

The utility model discloses a large-diameter prestressed concrete water delivery pipe, which comprises a steel socket ring at one end and a steel socket ring at the other end, and further comprises a UHPC (Ultra High Performance Concrete) inner pipe and a common reinforced concrete outer pipe, the steel spigot ring and the steel socket ring are fixed with the UHPC inner pipe and the common reinforced concrete outer pipe; a spiral prestressed tendon is wound on the outer circumference of the UHPC inner pipe, and the two ends of the spiral prestressed tendon are anchored in the water conveying pipe; a sealing ring for sealing with the inner circumferential surface of the steel socket ring is arranged on the outer circumference of the steel socket ring; annular grooves used for containing the sealing rings are formed in the two end faces of the common reinforced concrete outer pipe. And the two end surfaces of the UHPC inner pipe are also provided with respective annular grooves for accommodating the sealing rings. The water pipe can omit a steel cylinder, has the characteristics of high strength and compactness, high wear resistance, high impermeability, super corrosion resistance and durability of ultra-high performance concrete, and is relatively low in cost, relatively simple in structure, relatively short in production period and relatively high in production efficiency.