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3424results about "Flanged joints" patented technology

Ball valve butt joint structure

The invention relates to the technical field of ball valves, and discloses a ball valve butt joint structure which comprises two ball valve assemblies in coaxial butt joint, each ball valve assembly comprises a valve body, a valve element and a valve rod, each valve element is movably arranged in the corresponding valve body, one end of each valve rod penetrates through the corresponding valve body and is fixedly connected with the corresponding valve element, and the other end of each valve rod extends out of the corresponding valve body and is sleeved with a gear. The butt joint end face of each valve body is provided with a rack extending in the circumferential direction, and the rack of one ball valve assembly can be meshed with the gear of the other ball valve assembly. A limiting pin is elastically connected into at least one valve body, a limiting hole matched with the limiting pin is formed in the butt joint face of at least another valve body, the limiting pin can move between a locking position and an unlocking position in the axial direction relative to the valve bodies, the limiting pin is inserted into the limiting hole in the locking position, and the limiting pin is disengaged from the limiting hole in the unlocking position. According to the ball valve butt joint structure, locking and opening of the two ball valve assemblies can be completed only through two actions, and operation is rapid and convenient.
Owner:WTP TECH (SU ZHOU) CO LTD

Hose joint

The hose joint includes: a nipple having conductivity and provided along an insertion space of the hose body; a sleeve deformable in a radial direction and provided so as to surround an outer circumference of the insertion space of the hose body formed along an outer peripheral surface of the nipple; a plurality of separated holders provided outside of the sleeve to cover an outer face of the sleeve in a circumferential direction and be separable in the radial direction; and a tightening member provided to extend across the plurality of separated holders so as to move the individual separated holders closer together in the radial direction and cause diameter reduction of the sleeve. The nipple having the conductivity has a grounding clip having conductivity, the grounding clip is locked to an outer circumference of the nipple, each of the separated holders having a holder extension part.
Owner:TOYOX CO LTD

Non-welding detachable rotating flange

The utility model discloses a non-welding detachable rotary flange which comprises a connector arranged at the end of a hose and used for installing the flange and further comprises a limiting assembly, the limiting assembly comprises at least one first limiting piece, at least one limiting groove is formed in the outer wall of the connector, the first limiting piece is located in the limiting groove, and the first limiting piece is located in the limiting groove. The flange is arranged outside the connector in a sleeving mode, and a second limiting piece is selectively arranged on the outer wall of the connector. In order to avoid the situation that a limiting screw mentioned in the prior art is cut off, multiple different implementation modes are provided for limiting the position of the flange in the axial direction, the position of the flange can be limited by optimizing the structure of the limiting assembly, and therefore the arrangement of the limiting screw is omitted; a second limiting piece can also be arranged on the outer wall of the connector, the end, away from the opening of the connector, of the flange can abut against the second limiting piece, and therefore the second limiting piece and the first limiting piece are matched with each other to limit the position of the flange in the axial direction.
Owner:TECHFLUID YANTAI LTD

Valve with leakage detection function

The invention relates to the technical field of valve detection, in particular to a valve with a leakage detection function, which comprises a valve body, the two sides of the valve body are respectively connected with the end parts of an input pipe and an output pipe, a valve core is rotatably sealed in the valve body, a through hole is formed in the middle of the valve core in a penetrating manner, and a detection hole is formed in the bottom of the through hole in a penetrating manner; the bottom of the valve body is in threaded connection with the input end of the pressure gauge through a detection pipe, a second valve element is rotationally sealed in the detection pipe, a second detection hole of the second valve element is perpendicular to the detection hole, and the valve body is in threaded connection with the input end of the pressure gauge through the detection pipe. And the accuracy of detecting the pressure in the pipeline structure by the pressure gauge is also improved.
Owner:YANCHENG REXIN VALVE MFG CO LTD

Valve sealing structure

The invention provides a valve sealing structure, a valve comprises a valve body, a valve cover installed on the valve body, a valve plate located in the valve body and a transmission mechanism used for enabling the valve plate to move linearly, a first static sealing structure is arranged between the valve plate and the valve body, and a valve plate cover located on the low-pressure side of the valve plate is detachable. A second static sealing structure is arranged between a connecting flange of the valve body and a pipeline flange used for being connected with a pipeline, a third static sealing structure is arranged between the valve cover and the valve body, and a third static sealing structure is arranged in the valve body. The transmission mechanism converts rotary motion from the outside of the valve deck into linear motion and transmits the linear motion to the valve plate, and a dynamic sealing structure is arranged between the transmission mechanism and the valve body.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Gate valve with improved bidirectional sealing performance

The utility model discloses a gate valve with improved bidirectional sealing performance, which comprises a valve body, baffle rings are symmetrically arranged in the valve body, the outer side surfaces of the baffle rings are fixedly connected with the inner wall of the valve body, a gate plate is arranged on the inner sides of the baffle rings, an auxiliary pipeline is arranged above the gate plate, and the auxiliary pipeline is fixedly connected with the side surface of the valve body. Annular grooves are symmetrically formed in the surfaces of the two sides of the gate plate, sealing rings are fixedly connected to the surfaces of the inner sides of the annular grooves, a guide pipe is fixedly connected to the upper surface of the gate plate, the lower end of the guide pipe communicates with the annular grooves, the upper end of the guide pipe penetrates through the auxiliary pipeline to be connected with a hydraulic mechanism, and a driving mechanism is installed at the upper end of the auxiliary pipeline. The connecting flange is fixedly connected with the valve body. The problem that in the using process of a traditional gate valve, abrasion of a sealing ring on the gate plate sealing face is more and more serious is solved, the situation that the gate valve leaks due to the fact that the sealing performance of the gate plate is reduced after long-time use is avoided, the using sealing performance of the gate valve is improved, and the service life of the gate valve and the gate plate is prolonged.
Owner:GONGNAI VALVE CO LTD

High-pressure natural gas pipeline metal sealing ring self-compensation device

The invention belongs to the technical field of natural gas pipelines, and particularly relates to a self-compensation device for a metal sealing ring of a high-pressure natural gas pipeline. An outer connecting sleeve is fixedly connected to the exterior of a first pipeline, and a wear-resistant mechanism is mounted between a first inner connecting sleeve and a second inner connecting sleeve; the space between the first sealing ring and the packing sealing plate and the space between the second sealing ring and the packing sealing plate are filled with rigid packing, and the space between the first sealing ring and the second sealing ring is filled with flexible packing; a first toothed plate is fixedly connected to the exterior of the inserting plate, a sliding rod is slidably connected to the inner side of the translation groove, a clamping mechanism is installed at one end of the sliding rod, and a positioning mechanism is installed at the other end of the sliding rod; according to the device, rolling friction of balls is adopted to replace sliding contact, high-pressure vibration abrasion is greatly reduced, rigid-flexible double-filler combination elastically responds to deformation, continuous pressing of a sealing face is maintained, internal pressure impact is resisted through the right-angle toothed plate meshing self-locking design, and zero-leakage stable connection under the extreme working condition is achieved in combination with three-stage insertion rod positioning and bolt fastening.
Owner:LANGFANG HAIDA OIL & GAS TECHNOLOGY CO LTD

Flange assembling and disassembling auxiliary device and method

The invention discloses a flange assembling and disassembling auxiliary device and method, and relates to the technical field of pipeline connection. The height adjusting assembly comprises a pair of height adjusting structures, and the pair of height adjusting structures are arranged on the XY moving platform; the rotary clamping assembly is arranged on the height adjusting assembly; wherein the height adjusting structure comprises a mounting ring, a first driving part and a pair of telescopic brackets; the rotary clamping assembly comprises a rotary sleeve, a clamping structure and a second driving piece, and the problems that when an existing flange assembling and disassembling auxiliary device is used, assembling and disassembling can only be matched with pipeline flanges at the same height, and the pipelines need to be manually rotated to align bolt holes, so that the flange assembling and disassembling efficiency is low, and time and labor are consumed are solved.
Owner:MIANZHU HONG KONG & CHINA GAS CO LTD

High-temperature-resistant flash valve exhaust nozzle structure

The utility model discloses a high-temperature-resistant flash valve exhaust nozzle structure which comprises a pipe body and an energy reduction structure. The energy reduction structure comprises at least two stages of ceramic energy reduction units which are connected in series, and the ceramic energy reduction units are connected in the pipe body; the ceramic energy reduction unit comprises a first-stage energy reduction assembly and a second-stage energy reduction assembly; the first-stage energy reduction assembly comprises a first ceramic spray pipe and a first liner pipe; the first lining pipe sleeves the outer side of the first ceramic spray pipe; the first liner tube is arranged in the tube body; the second-stage energy reduction assembly comprises a second ceramic spray pipe and a second liner pipe; the second lining pipe sleeves the outer side of the second ceramic spray pipe; the second liner tube is arranged in the tube body; the end of the first ceramic spray pipe abuts against the end of the second ceramic spray pipe. And a medium flows out of the pipe body after sequentially passing through the first-stage energy reduction assembly and the second-stage energy reduction assembly from the inlet end of the pipe body. According to the multi-stage energy reduction device, the multi-stage energy reduction assemblies connected in series are adopted, medium pressure can be decomposed into stage-by-stage release, and therefore the fluid speed is effectively reduced, and dependence on a high-temperature adhesive is also avoided.
Owner:XIAN PUMP & VALVE GENERAL FACTORY CO LTD

Three-dimensional spherical compensator capable of performing mechanical sealing and method thereof

The invention relates to the technical field of compensators, in particular to a three-dimensional spherical compensator capable of conducting mechanical sealing and a method thereof.The three-dimensional spherical compensator capable of conducting mechanical sealing comprises a compensator body, and a U-shaped vertical plate frame is fixedly arranged on the compensator body; the first sealing compensation assembly is installed on the compensator body, the first sealing compensation assembly is supported through the U-shaped vertical plate frame, and the first sealing compensation assembly conducts sealing compensation on the flange connecting position; the locking matching assembly is installed on the first sealing compensation assembly, and the first sealing compensation assembly is locked through the locking matching assembly; the invention further relates to a sealing method of the three-dimensional spherical compensator. The sealing method comprises the following steps that firstly, the assembling bearing plate is positioned; step 2, closing the sealing semi-ring sleeve; and thirdly, the sealing semi-ring sleeve is locked.
Owner:JIANGSU CENT ASIA CORRUGATED PIPE

Gasket and joint structure

The present invention eliminates a dead space between a gasket and flanges and the present invention is an annular gasket 30 attached between planar seal surfaces 12x of opposing flange portions 12, in which steps 30d are formed between radially inner surfaces 30b continuous with an inner peripheral surface 30a and radially outer surfaces 30c, each radially inner surface 30b is located axially outward the corresponding radially outer surface 30c, the radially inner surface 30b and the radially outer surface 30c each have a planar shape orthogonal to an axial direction, and each radially outer surface 30c comes into contact with the corresponding seal surface 12x after each radially inner surface 30b comes into contact with the corresponding seal surface 12x.
Owner:IHARA SCIENCE CORPORATION

Rotary flange underwater sealing butt joint method for deepwater large-diameter composite pipeline

The invention discloses a rotary flange underwater sealing butt joint method for a deepwater large-diameter composite pipeline, and belongs to the technical field of submarine pipeline engineering. According to the method, aiming at the problems that a traditional flange joint is insufficient in sealing reliability in a deepwater dynamic environment and lacks a long-term monitoring means, a pressure self-adaptive sealing cavity is formed in a rotating flange disc surface, internal pressure is utilized to enhance sealing specific pressure, and a pressure sensor is integrated to monitor a sealing state in real time; and meanwhile, a pressure sensor interface is reserved to realize long-term data acquisition. The device is mainly used for installation, operation and maintenance of submarine water and oil gas pipelines, and long-term sealing safety of pipeline connectors can be effectively guaranteed.
Owner:GUANGZHOU SALVAGE BUREAU

Eccentric reducing double-wall pipe adapter and reducing double-wall eccentric connecting pipeline

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.
Owner:CSSC POWER INST CO LTD

Anti-freezing petrochemical engineering valve

The invention relates to the technical field of instrument valves, in particular to an anti-freezing petrochemical engineering valve. Connecting flanges are connected to the two ends of the valve body, closed rings are fixed to the two ends in the valve body, guide grooves are formed in the top ends and the bottom ends of the two ends in the valve body, conical pistons are slidably connected to the inner sides of the guide grooves, and the ends, away from each other, of the two conical pistons are slidably connected with the closed rings; a closing mechanism used for driving the conical piston and the closed ring to be separated or sealed is arranged on the inner side of the valve body. According to the anti-freezing petrochemical engineering valve, the closing mechanism is started to drive the conical piston to be in separation and sealing contact with the closed ring in the direction away from or close to each other, then petroleum in the valve body is effectively isolated or circulated, and the isolation and sealing effects of the petroleum are effectively improved through the arrangement of the conical piston and the closed ring; and through the arrangement of the two closed rings and the conical piston, the petroleum leakage condition is effectively prevented, and the practicability of the device is promoted.
Owner:JIANGSU EPICO FLUID EQUIP CO LTD

Under-balanced seal ring

A piping system for oil and gas in very deep water includes two opposing flanges and a seal ring between the flanges. Each flange has an annular ridge between concentric grooves. The seal ring has a radial web that connects longitudinal inner and outer sealing portions, which are received in the concentric grooves with the annular ridge received sealingly between the inner and outer sealing portions. The inner sealing portion of the seal ring is longer than the outer sealing portion. The web is as thick as or thicker than the inner and outer sealing portions. The seal ring comprises inner and outer concentric hollow cylinders having a non-uniform wall thickness and an annular rib that connects the hollow cylinders together, where one cylinder is longer than the other and where the rib has a longitudinal thickness that is as great as the radial thickness of the walls of the hollow cylinders.
Owner:LTS ENERGY INC

Ventilation connecting structure and system for large pipeline of ship ammonia fuel engine

The invention discloses a ventilation connecting structure and system for a large pipeline of a ship ammonia fuel engine, and belongs to the technical field of ships, the ventilation connecting structure comprises a first ventilation flange and a second ventilation flange which are connected in a paired mode, and an inner ring sealing structure is arranged at the contact position of the first ventilation flange and the second ventilation flange; an outer ring sealing structure is arranged outside the inner ring sealing structure, an annular discharging groove is formed between the inner ring sealing structure and the outer ring sealing structure, and a ventilation outlet and a cleaning opening are formed in the outer portion of the first ventilation flange and communicate with the annular discharging groove. The ventilation structure of paired installation flanges is simplified, the layout of a ventilation system is optimized, the manufacturing cost is low, and installation is convenient; the required negative pressure ventilation air quantity is small, the type selection capacity and size of each related device and accessory are small, and the initial investment cost, the later maintenance cost and the operation cost are low; ventilation air is distributed in a centralized mode, and through switching of on-off states of the ventilation stop valves, which group of flange connection in the system leaks can be distinguished and confirmed conveniently.
Owner:CHINA SHIPBUILDING IND GRP DIESEL ENGINE CO LTD

Petroleum manifold connecting structure and manifold group

The utility model discloses a petroleum manifold connecting structure and a manifold set. The petroleum manifold connecting structure comprises a left connector, a right connector, a clamping groove, a petroleum pipe, a fixing hole, a hexagon nut, a fixing protruding block, a fixing groove, a small-caliber sealing ring, a large-caliber sealing ring, a lantern ring and a nut. A left joint and a right joint are arranged on the outer wall and the inner wall of the petroleum pipe, and the petroleum pipe is embedded into clamping grooves of the left joint and the right joint to be fixed; the edge of the right side face of the left connector and the edge of the left section of the right connector are provided with a plurality of fixing protruding blocks and L-shaped fixing grooves respectively, the fixing protruding blocks are embedded into the fixing grooves to be locked, the left connector is embedded into the right connector to achieve firm connection, and then the left connector and the right connector are connected through hexagon nuts to be reinforced. According to the connecting mechanism, flowing of petroleum is not affected, the connecting mechanism is not prone to being damaged and destroyed, all connection is detachable, and disassembly and replacement are convenient.
Owner:HUBEI HENGTONG PETROCHEM EQUIP

Self-adaptive centering support for steam turbine pipeline flange

The steam turbine pipeline flange self-adaptive centering support comprises a telescopic base, a first supporting seat, an adjusting assembly, a limiting assembly and a rotary driving assembly, the other end, in the first direction, of the first supporting seat is used for supporting a pipeline, the adjusting assembly comprises a bottom support and a mounting shell part, and the mounting shell part is rotationally arranged on the bottom support; the limiting assembly comprises a driving part and a telescopic rod, one end of the telescopic rod is arranged on the mounting shell, the other end of the telescopic rod is used for being inserted into a hole of the flange plate, the driving part is connected with the telescopic rod to drive the telescopic rod to stretch out and draw back, and the rotary driving assembly is connected with the mounting shell. By means of the centering support, high precision in the butt joint process is guaranteed, potential safety hazards such as poor pipeline sealing and medium leakage caused by inaccurate centering are reduced, automatic alignment of holes of a flange plate is achieved, traditional manual visual inspection and manual adjustment modes are eliminated, the problem of hole position deviation is effectively solved, and the production efficiency is improved. And therefore, stable operation of the steam turbine unit is guaranteed.
Owner:INNER MONGOLIA HUANENG THERMOELECTRIC CO LTD WUHAI POWER PLANT

Sealing device of compensator

The utility model relates to the technical field of pipelines, and discloses a sealing device of a compensator, which comprises a flange plate, a butt joint cylinder is fixedly arranged on the side wall of the flange plate, and a sealing assembly is arranged in the butt joint cylinder. According to the sealing device of the compensator, by arranging the sealing assembly, when flange plates are in butt joint installation, a bolt pushes an abutting rod to be matched with a disc and a push rod, so that a compressed air bag is extruded, inert gas in an expansion air bag can enter an annular air bag through a connecting pipe, and the size of the annular air bag is increased; by means of the arc-shaped limiting groove, the expansion air bag cannot excessively shift in the horizontal direction, meanwhile, the arc-shaped outer surface of the expansion air bag can increase the coverage area formed by unfolding, and therefore a gap in the connecting position between the butt joint cylinder and an external pipeline is effectively blocked, and the sealing effect between the whole compensator and the pipeline is guaranteed; and the anti-risk capability of the device is improved.
Owner:HEBEI CAIHENG PIPE IND CO LTD

Embedded connecting structure of protective pipe

ActiveCN223909049UFlanged jointsPipeFastener
The utility model discloses an embedded connecting structure of a protective pipe, belongs to the technical field of pipeline connection, and solves the technical problem that the connecting position of an existing pipeline is directly exposed outside and is easy to damage. The protective pipe comprises protective pipes which are connected with each other, connecting parts are arranged on the end faces of the connecting ends of every two adjacent protective pipes, the connecting parts are connected with connecting flanges, the outer circles of the connecting flanges of every two adjacent protective pipes are jointly connected with connecting clamping rings in a buckled mode, and the connecting clamping rings are connected with the connecting flanges of every two adjacent protective pipes through first fasteners respectively. The outer circle diameter of the connecting clamping ring is equal to or smaller than that of the protective pipe. And after the overall outer layer of the protective pipe and the connecting position is coated with the anti-corrosion material, the connecting position is difficult to find, weak points at the connecting position of the protective pipe are hidden, and the attractive effect is achieved.
Owner:LIUZHOU OVM MASCH CO LTD

High-efficiency heat dissipation connector for pressure instrument

The invention relates to the technical field of instrument and meter connection, and discloses a pressure instrument efficient heat dissipation connector which comprises a pipeline threaded connector, a filter screen is arranged at the bottom of the pipeline threaded connector, a recycling disc is connected to the outer side of the pipeline threaded connector in a sleeving mode, and an L-shaped pipeline is fixedly installed between the pipeline threaded connector and the recycling disc. A main body rod and a heat dissipation coil pipe are arranged in the center of the recycling disc, the heat dissipation coil pipe is located on the outer side of the main body rod, net-shaped reinforcing ribs are arranged on the top of the main body rod, a flange mounting disc is arranged above the net-shaped reinforcing ribs in a penetrating mode, and a first protective cover is arranged above the flange mounting disc. After the main body rod is inserted into the first heat dissipation fins, heat enters the main body rod through the transfer effect, the heat is homogenized through cooperative treatment of the guide rods, the holes and the middle-end heat dissipation fins, high temperature is conveniently reduced through distributed heat dissipation, the effect of reducing the temperature is achieved, and the heat dissipation effect is improved.
Owner:XIAMEN ZONER ELECTRONIC TECH CO LTD

Ring seal with trough

A ring seal includes an annular body defining an axial hole therethrough for fluid passage in an axial direction and having a radial plane that is perpendicular to the axial direction. An axial side of the ring seal includes deformable annular protrusions extending from the annular body in an axial direction to first and second apexes, which are configured to deform upon engagement with a first planar sealing surface and define a trough therebetween to engage a first annular rounded sealing protrusion or ring. So configured, the ring seal can seal two different types of flow components.
Owner:MICROFLEX TECH INC

Double-track ball valve suitable for high-frequency opening and closing

The invention discloses a double-track ball valve suitable for high-frequency opening and closing, and relates to the technical field of ball valves. The valve ball is mounted in the valve main body and is used for controlling the opening and closing of the medium flowing channel through rotating fit; the sealing assemblies are installed at the two ends of the valve body and used for connecting the valve body with an external pipeline; the hand wheel is located at the top of the transmission mechanism and connected with the transmission mechanism, when the double-track ball valve is closed, an operator rotates the hand wheel, the hand wheel drives the threaded rod to rotate, and under the action of the guide mechanism, synchronous horizontal displacement of the bottom and the top of the valve ball is achieved; the sealing surface of the valve ball can be uniformly pressed on the first sealing ring of the sealing seat; the design effectively overcomes the defect that the sealing performance of the bottom of a valve ball of a traditional track ball valve is poor, even if the valve ball is abraded, the good sealing effect can still be maintained, and it is ensured that the valve is suitable for the high-frequency opening and closing working condition.
Owner:WENZHOU AOGONG VALVE CO LTD

Existing pipeline reinforcing device

The invention belongs to the technical field of pipeline safety reinforcement, and particularly relates to an existing gas pipeline flange joint reinforcing device which comprises a bottom plate, two outer-layer sealing pieces arranged symmetrically in the axial direction, an inner-layer sealing assembly and a detection assembly. A first arc-shaped sliding frame and a second arc-shaped sliding frame which are symmetrically arranged are connected to the top end of the bottom plate in a sliding mode, an outer-layer sealing piece is connected between the first arc-shaped sliding frame and the second arc-shaped sliding frame in a clamped mode, an inner-layer sealing assembly is arranged on the inner wall of the outer-layer sealing piece, and the inner-layer sealing assembly and the outer-layer sealing piece are each divided into two half bodies of the same structure in the axial direction. When leakage occurs at the flange joint, the detection assembly responds to the pressure change and outputs a signal, through the double-layer staggered joint sealing structure and the detection system, the supporting and reinforcing problems of the flange joint of the gas pipeline in urban underground construction are solved, real-time monitoring and early warning of leakage are achieved, and the reliability of the gas pipeline is improved. And a guarantee is provided for safe operation of the gas pipe network in a complex construction environment.
Owner:SICHUAN JIAOTOU CONSTR ENG CO LTD +1

Wind power flange surface defect detection device

The invention relates to the field of wind power flange detection equipment, in particular to a wind power flange surface defect detection device which comprises a bottom bearing platform, an annular magnetization assembly and a reflection type observation unit, the bottom bearing platform comprises a flow guide base, a supporting roller set and a driving roller, and the supporting roller set and the driving roller are equal in height; the double-side spraying system comprises an upper side spraying subsystem and a lower side spraying subsystem which are located on the upper side and the lower side of the wind power flange respectively; the magnetic generation unit is used for forming a detection magnetic field at the surface position of the wind power flange; the reflection type observation unit comprises a prism located obliquely below the wind power flange, and an included angle of 40-50 degrees is formed between the reflection face of the prism and the axis of the wind power flange. The method has the effect of reducing the probability of secondary damage during wind power flange surface defect detection.
Owner:山西宝航重工有限公司

Corrosion-resistant gas conveying pipeline

The utility model discloses a corrosion-resistant gas conveying pipeline, which relates to the technical field of gas conveying pipelines, and comprises a pipe body, a connecting valve, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, a corrosion-resistant layer is sprayed on the inner wall of the inner pipe; the connecting pieces are detachably connected to the front end and the rear end of the pipe body and used for fixing the inner pipe into the pipe body; according to the utility model, the inner wall of the inner pipe is coated with the corrosion-resistant layer, so that the direct contact between corrosive gas and the pipeline material is effectively isolated, the corrosion resistance of the pipeline is obviously improved, and the inner pipe is arranged, so that when the inner pipe is damaged due to long-time use or unforeseen circumstances, the corrosion resistance of the pipeline is improved, and the service life of the pipeline is prolonged. The whole pipeline system does not need to be integrally replaced, only the damaged inner pipe needs to be independently replaced, the maintenance process is greatly simplified, gas can flow into the other pipe body by arranging the connecting valve, and therefore shutdown is not needed when the pipe body is replaced.
Owner:NANTONG BAODELI MASCH MFG CO LTD

Stainless steel ventilating duct sealing structure

The utility model relates to the technical field of ventilating ducts, and discloses a stainless steel ventilating duct sealing structure which comprises a connecting pipe, a conical clamping block is fixedly connected to one side of the surface of the connecting pipe, an inserting pipe is inserted into the conical clamping block, a fixing pipe is inserted into the outer surface of the inserting pipe, and a fixing ring is fixedly connected to one end of the fixing pipe. A sliding groove is formed in the outer surface of the fixing ring, a clamping assembly is slidably connected into the sliding groove, the outer surface of the connecting pipe is in threaded connection with a threaded ring, and one side of the threaded ring is fixedly connected with a sealing ring. According to the stainless steel ventilation pipeline sealing structure, through the arrangement of the connecting pipe, the conical clamping block and the clamping assembly, when a worker installs a ventilation pipeline, the connecting pipe can be inserted into the fixing pipe, the conical clamping block slides relative to the inclined face of the clamping block, the conical clamping block penetrates into the fixing pipe, and then the conical clamping block is clamped through the clamping block; and a worker can quickly butt joint the ventilation pipeline.
Owner:JIANGSU RENZE ENVIRONMENTAL TECH CO LTD

Closure adapter

An assembly to coupling a pipeline closure with a pipeline closure hub, the pipeline closure hub including a closure hub opening portion and a coupling portion. The coupling including a pipeline closure extension extending from the pipeline closure. The pipeline extension including a junction portion to abut the closure hub opening portion of the pipeline closure hub and a fastener extending around the closure hub.
Owner:NAT OILWELL VARCO LP

Pipe coupling

A pipe coupling has a housing, a mounting portion extending away from a first side of the housing, and a hinge portion extending away from a second side of the housing. The housing is defined by a first axial wall, a second axial wall spaced apart from the first axial wall, and a semi-cylindrical outer surface extending between the first axial wall and the second axial wall. Each of the first axial wall and second axial wall have a semi-annular shape defining a passage radially inward from the first axial wall and second axial wall. The mounting portion has a flange and a hole formed through the flange. The hinge portion includes a tab and a frame. The tab extends partially between the first axial wall and the second axial wall, and the frame also extends partially between the first axial wall and the second axial wall.
Owner:TYCO FIRE PRODUCTS LP

Fluid connection assembly

A fluid connection assembly, including a connector body, including a first end, a second end, a through-bore, a first radially outward facing surface including an annular groove, a first radially inward facing surface extending from the first end, and a second radially inward facing surface extending from the second end, and a retainer operatively arranged to be removably connected to the connector body, the retainer including a third end, a fourth end, a first section, a second section displaceable with respect to the first section, a third radially inward facing surface, a first flange extending radially inward from the third radially inward facing surface and operatively arranged to engage the annular groove, and a second flange extending radially inward from the third radially inward facing surface.
Owner:OTIKER NJ INK