9 results about "Spiral wound" patented technology

This utility model provides a pressure-resistant and flame-retardant PE hollow-wall spiral wound pipe, belonging to the technical field of hollow-wall spiral wound pipes. The pressure-resistant and flame-retardant PE hollow-wall spiral wound pipe provided by this utility model features a reinforcing tube with reinforcing ribs spirally wound on its outer circumference. Pressure-resistant filler is filled into the reinforcing ribs, improving the overall rigidity and pressure resistance of the spiral wound pipe, making it less prone to deformation and damage under external pressure. Simultaneously, a plastic spring is provided between the reinforcing tube and the spiral wound pipe body, providing internal support to the reinforcing tube and enhancing its ring stiffness and axial stiffness. Due to the plastic spring and the spirally wound reinforcing ribs on the outer circumference of the reinforcing tube, stress concentration is reduced, resulting in excellent bending resistance and preventing breakage of the spiral wound pipe. Furthermore, a flame-retardant and heat-insulating layer and a corrosion-resistant layer are provided on the outer circumference of the reinforcing tube, improving the flame retardancy and corrosion resistance of the spiral wound pipe.

This utility model relates to the field of spiral wound tube technology, specifically a multi-layer composite spiral wound tube structure, including a tube body with a supporting mechanism. The supporting mechanism includes an inner annular component fixedly connected to the outer wall of the tube body. Several inner annular components are arranged in an array. An outer protective tube is fixedly connected to the side of the inner annular component away from the tube body. Several arc-shaped tubes are arranged in an array on the outer wall of the outer protective tube. An outer annular groove is provided between the arc-shaped tubes and the outer protective tube. The cavity formed by the inner annular component, the outer protective tube, and the tube body is provided with an inner annular groove. A through groove is formed on the inner annular component. This utility model, through the reinforcing rib structure formed by the inner annular component and the outer protective tube, and the arc-shaped tubes dispersing external pressure, achieves a point-line-surface mechanical linkage, effectively improving the overall stability and deformation resistance of the tube body, enhancing its load-bearing capacity, and extending its service life.

This invention relates to the field of spiral wound molding technology and discloses an HDPE pipe spiral wound structural wall pipe spiral wound molding equipment, including a base, a vertical plate mounted on the top of the base, a pulley on the top of the vertical plate, a mandrel splicing assembly on the top of the pulley, and a cooling and shaping assembly on the outer wall of the mandrel splicing assembly. By employing high-frequency mechanical vibration of piezoelectric ceramic water spray, and transmitting the vibration to the cooling water interface, the surface tension of water molecules is broken, allowing atmospheric pressure cooling water to be directly atomized into uniform micro-droplets without the need for a high-pressure pump. The atomized droplets can be aligned with the adsorption holes and directionally sprayed onto the pipe surface to achieve efficient heat exchange, reducing energy consumption and making the droplet distribution more uniform. Utilizing the existing shaped adsorption holes as the spray channel for subsequent atomization cooling, vacuum adsorption + water-cooled spraying is achieved, simplifying the structure while ensuring cooling uniformity and eliminating cooling dead zones caused by nozzle arrangement deviations in traditional spray devices.

This utility model discloses a winding device for producing metal spiral wound gaskets, including a bracket, two circular blocks passing through the middle of the bracket, a first support roller on one side of the bracket, the circular blocks being inserted into the first support roller, a second support roller detachably connected to one side of the bracket, and a third support roller on the other side of the bracket. A drive motor fixedly connected to one end of the third support roller is fixedly connected to the bracket, and two first support shafts are fixedly connected to the front of the bracket. This utility model has the advantage of tension adjustment.

This utility model discloses an anti-oxidation spiral wound pipe, comprising a spiral wound pipe body, with a protective strip spirally wound around the outer side of the spiral wound pipe body. Multiple vertical ribs are clamped onto the outer side of the protective strip. Each vertical rib has an open C-shaped structure, and the open structures of adjacent vertical ribs are arranged opposite each other. The protective strip, from the inside out, includes an adhesive layer, a buffer layer, a base layer, and an anti-oxidation layer. Through this structure, after the protective strip is wound around the outside of the spiral wound pipe, the vertical ribs are clamped onto the spiral wound pipe. The protective strip protects the spiral wound pipe and reduces contact with the external environment. The vertical ribs provide support, increasing the ring stiffness of the pipe, enabling it to better resist external pressure and maintain pipeline stability during underground installation. The overall protective effect of the protective strip improves the corrosion resistance and oxidation resistance of the spiral wound pipe.

This utility model relates to the technical field of plastic spiral wound pipes, and in particular to a double-peak reinforced spiral wound drainage pipe. The spiral wound drainage pipe is formed by winding a plastic-steel pipe body, and molten material is provided at the overlap between any two adjacent plastic-steel pipe bodies. First peaks are symmetrically arranged at both ends of the outer surface of the plastic-steel pipe body, and a second peak is arranged in the middle of the outer surface of the plastic-steel pipe body. Multiple steel wires are co-extruded inside the side of the plastic-steel pipe body. The first peaks at both ends of the outer surface of the plastic-steel pipe body form large trough areas, and the second peak is located within these large trough areas. A reinforcing rib is provided inside the second peak, and an inner arc-shaped groove is provided at the top of the second peak. This utility model can shorten the span between the two first peaks, enhance the strength of the trough areas, and the reinforcing rib and the inner arc-shaped groove form a Y-shaped support structure, which can better provide support and has stronger compressive strength.

The utility model discloses a quick assembly disassembly's roll type filter membrane subassembly, including casing and shell cover, the one side fixedly connected with drain pipe of casing, the outer wall fixedly connected with fixed block of casing, the one side of every fixed block all has seted up the clamping groove, every clamping groove all slidingly connected with the clamping block, the one side of every clamping block all has seted up the clamping hole, the utility model discloses, through setting fixed frame, first sliding rod, arc plate, clamping post, first spring, poking frame and poking lever etc., poking poking lever, and poking lever moves through poking frame and drives first sliding rod, and first sliding rod drives arc plate and moves, and compresses first spring, and arc plate drives two clamping posts and moves, makes clamping post separate from corresponding clamping hole, then takes out shell cover, and draws out the roll type filter membrane main part inside and carries out replacement, need not to dismantle the bolt, improves the replacement efficiency of roll type filter membrane main part.

This utility model relates to the technical field of tubular heat exchangers, specifically to a spiral wound tubular heat exchanger for a heat pump evaporation system. Multiple spiral wound tubes are arranged between an outer tube body and an inner tube body. The front end of each spiral wound tube is connected to a front straight tube, and the rear end is connected to a rear straight tube. A central manifold is arranged inside the inner tube body, and multiple first inner tubes and multiple second inner tubes are arranged on the central manifold. The front end of the central manifold is connected to a first flow guiding device, and the rear end is connected to a second flow guiding device. The multiple front straight tubes are connected to the first flow guiding device, and the multiple rear straight tubes are connected to the second flow guiding device. The first flow guiding device is connected to a first water pump, and the second flow guiding device is connected to a second water pump. This utility model employs a variable pitch design combined with flow guide vanes to generate secondary vortices in the fluid, improving the heat transfer coefficient; the micro-vortex protrusions delay scaling and extend the cleaning cycle.

A method of manufacturing a pipe (10) includes providing a first tubular member (12) comprising a composite material having electrically conductive non-metallic elements (14) mixed into a thermoplastic polymer; providing a second tubular member (16) comprising the thermoplastic polymer; disposing one of the tubular members around the other; and heating the electrically conductive non-metallic elements (14) to partially melt them and thereby bond the two tubular members (12, 16) to one another. A pipe (10) is also provided. The electrically conductive non-metallic elements (14) can include carbon fibers, graphite, graphene, carbon nanotubes, black phosphorus, selenium, boron, silicon, germanium, arsenic, antimony, and tellurium. A third tubular member (126) of thermoplastic can be provided and the first tubular member (12) disposed around the third tubular member. One tubular member can be extruded or spiral wound as a tape to dispose it onto the other tubular member.