33results about How to "Applicable delivery" patented technology

The invention relates to a production method of a stainless steel brazed composite seamless pipe fitting. The production method comprises the following steps: firstly selecting a carbon steel seamless steal pipe and machining the inner surface of the carbon steel seamless steal pipe; then selecting a stainless steel pipe with the same length as the carbon steel seamless steal pipe, and machining the outer surface of the stainless steel pipe; placing the machined stainless steel pipe into the machined carbon steel seamless steal pipe, and filling a brazing material between two layers of the steel pipes, wherein, the brazing material is a Ag-Cu-Ni high-temperature silver-based brazing material with a high silver content; and machining the obtained composite pipe according to the pipe fitting desired to be produced to obtain the finished pipe fitting with the desired size and shape, wherein, the heating temperature is 910-960 DEG C. The production method has the advantages of producing the stainless steel brazed composite seamless pipe fitting with high bonding strength and being applicable to middle-pressure pipe transportation and high-pressure pipe transportation.

The invention discloses a screw pump for pitch conveying. The screw pump comprises a screw pump body, a coupler, a motor and a base, wherein the screw pump body and the motor are fixed to the base with bolts; heat preservation layers are arranged at the two sides of the screw pump body through first flanges; a cover plate is arranged at the upper end of the screw pump body; a mechanical sealing layer is arranged between the cover plate and the upper end of the screw pump body; and an oil filling hole and a relief valve are formed in and arranged at the upper end of the screw pump body.

The invention belongs to reinforced ultra-high molecular weight polyethylene winding pipe and its preparation method. One or more layers of ultra-high molecular weight polyethylene profiles are used as winding materials, arranged in regular, mirror image or phase dislocation, and melted between adjacent side walls / periphery Interconnected or adjacent side walls / peripherals are fusion-bonded with frit material applied, and spirally wound to form the pipe wall; the wound material is stretched to orient the molecules along the longitudinal direction of the profile; reinforcement is applied to the UHMWPE base material materials and / or wear-resistant materials and / or flame-retardant materials and / or antistatic materials; welding materials are plastic polymers, or are reinforced and / or wear-resistant and / or flame-retardant and / or antistatic materials are applied to form plastic Melted co-extrusion; the distribution of reinforcing materials in the winding material and / or welding material is oriented in the helical direction along the axis of the high-strength winding pipe. It has higher impact resistance, yield strength, wear resistance, flame retardancy and antistatic ability, and can produce large-diameter pipes with small equipment.

The invention discloses a molding cooling device for processing an outer insulating layer of a power cable. The device comprises a workbench; a spraying chamber, a cooling water tank and an air dryingchamber are sequentially arranged at the upper end of the workbench from left to right. The bottom of the spraying chamber and the bottom of the air drying chamber are fixedly connected with fixing frames correspondingly. A water storage tank is arranged at the upper end of the workbench and located outside the spraying chamber. A plurality of rolling shafts are arranged in the cooling water tankat equal intervals, the two ends of each rolling shaft are horizontally connected with connecting shafts correspondingly, the outer walls of the connecting shafts are sleeved with fixing rods, the fixing rods are fixed to the inner bottom of the cooling water tank, conveying openings are formed in the spraying chamber and the air drying chamber correspondingly, and pressing rollers and conveyingrollers are arranged at the upper ends and the lower ends in the conveying openings correspondingly. The molding cooling device overcomes the defects in the prior art, is reasonable in design, conducts pre-spraying before the cable enters the cooling water tank, improves the cooling efficiency, can recycle spraying water, saves water resources, and has high social use value and application prospects.

The invention discloses a marine vertical deep well liquid cargo pump which comprises a motor component, a bearing component, a mechanical seal, an exit section, a support pipe, a middle support frame, a shaft, a shaft connecting component, a multistage flow guide housing, an impeller, an inducer, a suction section and the like, wherein a gaseous cold insulation cavity and a buffer cavity are sequentially arranged between the mechanical seal and the exit section from the top down to form two mechanical seal protection barriers; a multipoint sliding bearing support is arranged between a pump rotor and a casing; a middle limiting component is arranged in the middle of the pump; a bottom end limiting component is arranged at the undermost end of the pump; deviation of the whole pump due to swaying is avoided; the support pipe capable of sliding up and down is arranged at a shaft connecting part of a lower shaft; the shaft connecting component is dismounted by using a vacated space; and further, a whole lower shaft component can be taken out for maintenance. According to the pump, the service life of the seal can be prolonged, the swaying of the pump is avoided, the pump is convenient to dismount, as well as operates stably and is safe and reliable and long in service life under the working condition of length being 20m and working temperature being subzero 165 DEG C when liquid is pumped, and the pump is applicable to conveying LNG (Liquefied Natural Gas), LEG (Liquid Ethylene Gas) and LPG (Liquefied Petroleum Gas).

The invention discloses a carrier roller which can prevent materials from jumping in the conveying process. The carrier roller comprises a base. An installation plate is vertically arranged on the base. A through hole for the materials to pass is formed in the installation plate. A lower carrier roller for bearing the materials and an upper carrier roller for limiting jumping of the materials are arranged on the installation plate and the arrangement position of the upper carrier roller can be adjusted relative to the lower carrier roller.

The invention discloses a plastic pipe for chemical wastewater delivery and a production method of the plastic pipe and relates to the technical field of plastic pipe production. The plastic pipe is prepared from raw materials in parts by mass as follows: 85-90 parts of a tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer, 20-25 parts of polyphenylene sulfate, 12-15 parts of nano silicon carbide, 10-13 parts of polyvinyl alcohol, 7-9 parts of white carbon black, 5-8 parts of diatomite, 3-5 parts of seaweed gel, 3-5 parts of epoxidized soybean oil, 2-3 parts of calcium stearate, 2-3 parts of zinc stearate, 1-3 parts of graphite powder, 1-3 parts of dibutyl phthalate, 0.5-2 parts of an ultraviolet light absorber, 30-40 parts of polyethylene glycol and 40-45 parts of water. The plastic pipe produced with the method has excellent wear resistance, corrosion resistance, high-temperature resistance, shock resistance and the like, adhesion to the inner wall is avoided, and the plastic pipe is prevented from being blocked after long-term usage, so that the plastic pipe is long in service life, wide in application range and applicable to delivery of all kinds of chemical wastewater.

The invention discloses a novel material for a mash pump. The novel material comprises the following chemical components including, by weight, 0.45% to 0.55% of C, 4.0% to 6.0% of Ni, 17.0% to 09.0% of Cr, 1.9% to 2.1% of Mo, 0.4% to 0.6% of Co, less than or equal to 0.03% of P, less than or equal to 0.03% of S and the balance Fe. According to the novel material for the mash pump, on the basis of reducing the cost, the wear resistance and the corrosion resistance of the mash pump are greatly improved, the service life of the mash pump is prolonged, and the economic benefit is improved.

The invention relates to an electric compressor (7) comprising: a compression mechanism (3); an electric motor (2) for driving the compression mechanism (3), the electric motor having an axis of rotation (X); and an electric motor (2) power supply inverter (1). The inverter (1) is mounted in an inverter housing (10), while the electric motor (2) is mounted in a housing (20) extending longitudinally along the axis of rotation (X) and having a first end (20P) connected to the inverter housing (10) by a plurality of securing devices (5). According to the invention, the motor (2) comprises a stator (2A) of circular periphery. Moreover, the internal periphery of the motor housing (20) is provided with a plurality of protuberances (23) that are in contact with the circular periphery of the stator (2A), and the internal periphery of the motor housing (20) is provided with a plurality of openings (29), between two consecutive protuberances (23), with at least one securing device (5) extending through the openings.

Global modular fast-installation shelter and special-shaped aluminum profiles, butt aluminum profiles and construction methods, the adjacent panels of the shelter are connected by butt-joint aluminum profiles; butt-joint aluminum profiles include two snap-fit ​​joints of profiled aluminum profiles and buckle covers; The cross-section of the aluminum profile is L-shaped, and the connecting plates of the two special-shaped aluminum profiles are combined and connected by bolts, and the concave and convex parts form a tongue-and-groove connection; Cooperate with the blocking plate to realize the sealing of the connection seam. The invention adopts the method of making modules in the factory and splicing and assembling on site, which has low cost, less land occupation, convenient installation, short construction time, high strength, structural strength and rigidity all meet the requirements, and strong seismic performance; Simple and reliable; the overall keel frame is easy to bear heavy equipment boxes; filled with polyurethane foam, it has good air tightness and high structural strength; there is no special requirement for on-site construction conditions, green and environmentally friendly, and cost-effective.

The invention relates to a production method of a stainless steel brazed composite seamless pipe fitting. The production method comprises the following steps: firstly selecting a carbon steel seamlesssteal pipe and machining the inner surface of the carbon steel seamless steal pipe; then selecting a stainless steel pipe with the same length as the carbon steel seamless steal pipe, and machining the outer surface of the stainless steel pipe; placing the machined stainless steel pipe into the machined carbon steel seamless steal pipe, and filling a brazing material between two layers of the steel pipes, wherein, the brazing material is a Ag-Cu-Ni high-temperature silver-based brazing material with a high silver content; and machining the obtained composite pipe according to the pipe fittingdesired to be produced to obtain the finished pipe fitting with the desired size and shape, wherein, the heating temperature is 910-960 DEG C. The production method has the advantages of producing the stainless steel brazed composite seamless pipe fitting with high bonding strength and being applicable to middle-pressure pipe transportation and high-pressure pipe transportation.

The invention discloses a composite conveying pipeline. The composite conveying pipeline comprises an outer pipe and an inner pipe, wherein the inner pipe is arranged in a hollow cavity in the outer pipe in a suspended mode; a first sealing cover is arranged on one side of the outer pipe; a second sealing cover is arranged on the other side of the outer pipe; the first sealing cover and the second sealing cover seal two sides of the whole outer pipe; an inner conveying channel is arranged in the middle of the inner pipe; a first assembling convex part is arranged at the end part of the inner side of the first sealing cover; a second assembling convex part is arranged at the end part of the inner side of the second sealing cover; the first assembling convex part and the second assembling convex part seal the whole inner conveying channel; one or more sealing devices are arranged in the inner conveying channel at equal distances; and a soft section is arranged in the middle of the first assembling convex part. The composite conveying pipeline is particularly suitable for conveying fluid products such as petroleum, crude oil can be filtered, the fluidity of the crude oil can be guaranteed, and if the middle of a pipeline is cut off, oil leakage does not occur, the rapid blocking can be realized, and the waste of resources is reduced.

The invention relates to an electric compressor (7) comprising: a compression mechanism (3); an electric motor (2) for driving the compression mechanism (3), said electric motor having an axis of rotation (X); and an electric motor (2) power supply inverter (1). The inverter (1) is mounted in an inverter housing (10), while the electric motor (2) is mounted in a housing (20) extending longitudinally along the axis of rotation (X) and having a first end (20P) connected to the inverter housing (10) by a plurality of securing devices (5). According to the invention, the motor (2) comprises a stator (2A) of circular periphery. Moreover, the internal periphery of the motor housing (20) is provided with a plurality of protuberances (23) that are in contact with the circular periphery of the stator (2A), and the internal periphery of the motor housing (20) is provided with a plurality of openings (29), between two consecutive protuberances (23), with at least one securing device (5) extending through said openings.

The invention relates to a centralized automatic control switching feeding system and a control method thereof in the field of optical fiber manufacturing. Including central material tank, weighing device, diaphragm pump, air bubble warning device, control valve 1, control valve 2, control valve 3, control valve 4, defoaming device, paint filter, main pipeline, control valve 5, paint bucket, Feed pipe, paint liquid level sensor, discharge pipe, central controller and upper computer; the central material tank is placed on the weighing device, the central material tank is connected to the diaphragm pump through a flexible hose, and the outlet of the diaphragm pump is connected to the air bubble warning The device is connected, the paint filter is connected to the main pipeline, the branches of the main pipeline are respectively connected to the paint buckets of each line, and the central controller is connected to the upper computer.

A non-adhesive composite pipe for delivering hot fluid or gas is composed of a metallic pipe, and two surficial layers which are the polyvinyl chloride layer with directional thermal shrinking memory function. Its advantages are high strength, light weight, and long service.