12899results about "Pipe elements" patented technology

A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

The present invention relates to the technical field of pipeline control valves, and provides a fixed cone valve having automatic pressure adjustment and locking functions. The fixed cone valve having automatic pressure adjustment and locking functions comprises external fixed pipes; a supporting pipe is fixedly connected to the interiors of the external fixed pipes; a fixed frame is fixedly connected to the interior of the supporting pipe; a flow dividing cover is fixedly connected to one side of the fixed frame; and a fixed disc is fixedly connected to one side of the flow dividing cover. According to the fixed cone valve having automatic pressure adjustment and locking functions, a servo motor is started, an output end of the servo motor drives a third gear to rotate, the third gear drives a second gear in meshed connection with the third gear to rotate, and the second gear drives an inner ring gear and an outer ring gear which are in meshed connection with the second gear to rotate; and when the inner ring gear and the outer ring gear rotate to drive two first gears to rotate, and the first gears rotate to drive first lead screws to rotate, connecting plates located on the outer side and connected by means of a ball nut pair drive a sealing blocking pipe to horizontally move, so as to control the water outflow amount, achieving the accurate adjustment effect.

A pipe repair stent includes a gasket defining a first gasket end, a second gasket end opposite the first gasket end, an outer gasket surface, and an inner gasket surface, the inner gasket surface defining a main passage, a stent axis extending centrally through the main passage, the outer gasket surface at least partially defining an outer stent surface of the pipe repair stent; a first pipe engagement strip coupled to and extending circumferentially along the outer stent surface proximate to the first gasket end; and a second pipe engagement strip coupled to and extending circumferentially along the outer stent surface proximate to the second gasket end; wherein each of the first and second pipe engagement strips extend radially outward beyond the outer stent surface and are configured to engage an inner wall of a pipe to improve a grip of the pipe repair stent on the inner wall.

A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

The invention discloses a faucet structure which comprises a bottom pipe, two water outlet pipes arranged on the bottom pipe and water supply water ways arranged in the bottom pipe and the water outlet pipes, the two water outlet pipes comprise the first water outlet pipe and the second water outlet pipe, the first water supply water way is arranged in the first water outlet pipe and the bottom pipe, and the second water supply water way is arranged in the second water outlet pipe. A second water supply channel is arranged in the second water outlet pipe and the bottom pipe, a sleeve is further installed on the bottom pipe, the second water outlet pipe and the first water outlet pipe are sequentially and rotationally arranged outside the sleeve in a sleeving mode from bottom to top, the first water supply channel axially penetrates through the sleeve, and the second water supply channel axially penetrates through the sleeve. The two water supply channels are arranged in the faucet, and the two water outlet pipes are correspondingly arranged, so that the two water supply channels can be connected with different water sources, the two water sources are integrated on one faucet to discharge water, a user can conveniently select different water outlet pipelines at any time according to needs during use, great convenience is brought to the user, the occupied space is reduced, and the cost is reduced. And the device is very suitable for small-sized kitchens.

A stent spring for a pipe repair device includes a tubular mesh structure comprising a plurality of strands arranged to define a plurality of spring openings therebetween, the tubular mesh structure defining a circumferential spring top end and a circumferential spring bottom end opposite the circumferential spring top end, a void extending axially through the tubular mesh structure from the circumferential spring bottom end to the circumferential spring top end; a continuous top band extending partially around the circumferential spring top end of the tubular mesh structure; and a continuous bottom band extending partially around the circumferential spring bottom end of the tubular mesh structure.

The invention relates to the technical field of electric vehicle power battery thermal management, and discloses a temperature change-based power battery thermal management system, which comprises a thermal simulation pre-judgment end, a sensor network end, a dynamic liquid cooling control end, a BMS decision end and a fault diagnosis module, aiming at the technical defects of out-of-control temperature difference, response hysteresis and leakage risk caused by static flow channel design of the existing liquid cooling system, breakthrough is realized through a three-dimensional technical architecture: a CFD (Computational Fluid Dynamics) prejudgment layer: automatically calibrating sensor distribution points based on temperature field standard deviation, and improving temperature difference identification precision; according to the dynamic valve control layer, an electromagnetic three-way reversing valve is adopted to execute a directional temperature control strategy, an edge battery cell is preferentially introduced under the low-temperature working condition, and heat dissipation is enhanced under the high-temperature working condition; according to the redundant safety layer, the valve body and the pipeline are integrally formed, the leakage rate is reduced, and flow maintenance under single-point failure is achieved through a double-water-inlet parallel pump source. The method has the effects of improving the convergence speed of temperature difference between modules, reducing the attenuation rate of battery life and reducing the risk probability of thermal runaway.

The invention discloses a pipeline pressure relief structure and a pressure relief valve with the pressure relief structure, and relates to the field of pressure relief valves, the pipeline pressure relief structure comprises a main valve, a tower-shaped valve core, a pressure gauge, an amplification gear and a labor-saving lever, and changes the situation that in the prior art, precision of a pilot valve is adjusted through a needle valve, and the needle valve and the pilot valve need to continuously play a sensing role through similar structures such as springs; a tower-shaped valve element is arranged in a main valve to conduct multi-section control over flow, then driving force on the tower-shaped valve element is amplified in a multiplied mode through a hinge rod, an amplification gear and a labor-saving lever, accurate adjustment of the tower-shaped valve element is guaranteed, and the control precision of equipment is guaranteed. In addition, the pressure gauge is connected in the pilot valve through the oil bag, and the carry block facilitating adjustment of the elastic force of the piston by the spring is arranged, so that the pilot valve can be calibrated according to the display of the pressure gauge and the flow change of the main valve, the service life of the pressure relief valve structure is prolonged, and more accurate adjustment and use of the pressure relief structure are ensured.

The invention discloses a drilling-grouting integrated underwater robot and aims to meet the requirement for precise operation in a complex underwater environment. The robot integrates the fin antenna, the hydraulic telescopic crawler belt, the hydrodynamic force wings, the bionic mechanical arm and the integrated drilling and injecting system, and has the multi-terrain adaptation, efficient navigation and autonomous operation capacity; through modular design and a high-strength pressure-resistant structure, the robot can complete tasks such as pipeline repair, resource exploration and infrastructure construction in a deep sea high-pressure environment; the core technology comprises a multi-mode propulsion system, intelligent sensing and navigation, AI optimization operation and dual-mode operation switching. Typical application scenes include submarine pipeline damage repair, deep sea mining area reinforcement sampling, cross-sea bridge pile foundation grouting and the like. The limitation that a traditional underwater robot is single in function and high in energy consumption is broken through, and the safety and efficiency of complex underwater engineering are remarkably improved.

A double-track welding system is provided. A first track is detachably mounted on a first side of a weld seam of a workpiece, and a second track is detachably mounted on a second side of the weld seam of the workpiece. The first track and the second track are both mounted on a fixed support, and the fixed support can drive the first track and second track to move. At least one welding trolley is arranged on each of the first track and the second track. An image acquisition component is used for acquiring an image of a part to be welded; a weld seam scanning device is used for acquiring the weld seam morphology; and a control system is used for controlling, according to the image of the part to be welded, the fixed support to move.

A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

A compression fitting includes a first fitting segment defining a first arcuate central section, a first retention rib extending radially inward from the first arcuate central section; a second fitting segment defining a second arcuate central section, a second retention rib ending radially inward from the second arcuate central section; and a grip ring defining a first ring end and a second ring end, wherein a split is defined between the first ring end and the second ring end, and wherein the first ring end engages the first retention rib and the second ring end engages the second retention rib.

A tubing assembly is provided that can comprise a plurality of tubes or lumens that can be disposed within a head of a peristaltic pump. The tubing assembly can provide a flow rate or volume capacity that is generally equal to or greater than that achieved with a comparable prior art tube while operating at higher pressures than that possible using the prior art tube. Further, in accordance with some embodiments, the tubing assembly can achieve a longer working life than a comparable prior art tube, and the load on the pump motor can be reduced such that the pump life is increased and / or a larger pump motor is not required to achieve such advantageous results.

The invention discloses a system for enhancing the damping and aseismic capacities of an underground integrated pipe rack. It includes a pipe fixing assembly installed on the inner walls of the underground space on both sides. The assembly comprises multiple lifting frames arranged vertically and a lifting mechanism. The telescopic end of the lifting mechanism is fixedly connected to the lowermost lifting frame. One side of the lifting frame is slidingly connected to the inner wall of the underground space and features a recess for placing the pipe. A pipe holder inside the recess secures the pipe. During vibrations, the lifting frame slides on the inner wall, causing relative movement between adjacent pipe holders. The vibration is absorbed by the telescopic spring, preventing hard contact between the pipe and the vibration source. This reduces vibration and protects the pipe, thereby enhancing the aseismic capacity of the underground pipe rack.

The present application belongs to the technical field of mass concrete construction, and aims to solve the problem of high thermal resistance and slow heat dissipation of traditional cooling pipe laminar bottom layer, and discloses a gravity dam construction cooling water pipe based on destruction of laminar bottom layer and a method thereof. The cooling water pipe comprises a plurality of series water pipe units, each water pipe unit comprises a steel pipe, a flexible spring hose is arranged in the steel pipe, and the spring hose forms a spiral protruding turbulence structure along the inner wall of the steel pipe; the hose is fixed by pointwise anchoring and outer wall surface bonding with glue, and a ring is arranged at both ends for limiting and assisting turbulence. The present application breaks through the thermal resistance of laminar bottom layer, greatly improves the hydration heat conduction efficiency, is convenient to construct and has durable structure, and is suitable for mass concrete temperature control requirements.

The present invention discloses an LWP angle flow measurement and control valve with anti-residue on the inner wall, which belongs to the technical field of flow measurement and control valves, and comprises a flow actuator, wherein the lower surface of the flow actuator is connected to a flow controller, and the right side surface of the flow controller is connected to a water inlet pipe, and the lower side surface of the flow controller is connected to a water outlet pipe; a rotating shaft is arranged inside the water outlet pipe, and a second cleaning component is arranged inside the water outlet pipe, and the second cleaning component comprises a cleaning plate arranged inside the water outlet pipe, and the cleaning plate reciprocates inside the water outlet pipe when working. For the LWP angle flow measurement and control valve with anti-residue on the inner wall, when the water inlet pipe is working, the water wheel will drive the connecting shaft to rotate, and when the connecting shaft rotates, it will drive the brush plate to clean the inner wall of the water inlet pipe, and at the same time, the cleaning plate will make reciprocating linear motion on the inner wall of the water inlet pipe, and at this time, the cleaning plate can also clean the inner wall of the water inlet pipe, thereby optimizing the anti-residue effect and preventing scale nodules.

The utility model relates to the field of fire-fighting engineering, and discloses a combinable smoke exhaust pipeline structure for fire-fighting engineering, which comprises a smoke pipe and a hoop, the smoke pipe is a sectional pipeline, the hoop is sleeved at a smoke pipe connecting port, the hoop is fixedly connected with a hanging bracket, a slot is arranged on the outer wall of the hoop, and the hanging bracket is fixedly connected with the smoke pipe connecting port. And combined section steel is welded to the top end and the bottom end of the outer wall of the smoke pipe. According to the combinable smoke exhaust pipeline structure for the fire engineering, the hoops are arranged, the pipelines are combined and installed in a segmented connection mode, the pipe opening of each section of smoke pipe is aligned with the hoops to be inserted into the hoops, the combined steel on the outer walls of the smoke pipes can be inserted into the limiting steel on the inner walls of the hoops from the inserting grooves in the hoops and embedded into the limiting steel on the inner walls of the hoops, and transverse clamping is formed to prevent the smoke pipes from shaking during installation; and then connecting bolts are driven in to connect the combined section steel with the limiting steel, so that through tight connection with the hoop, the connection stability is improved, the smoke pipes can be combined and installed according to the requirements of the number and the length to form a long-distance smoke exhaust pipeline, and the problem that connection is affected by disassembly and assembly is solved.

A pipe repair device includes a gasket defining a substantially cylindrical shape, the gasket defining a gasket top end and a gasket bottom end opposite the gasket top end, a gasket outer surface, and a gasket inner surface opposite the gasket outer surface, the gasket outer surface defining a plurality of raised ridges, the raised ridges extending about a circumference of the gasket outer surface; and a spring engaging the gasket inner surface, wherein the pipe repair device is configurable in an expanded configuration and one of a compressed configuration and a folded configuration, and wherein the spring biases the pipe repair device to the expanded configuration.

Provided are a deformable tracked pipeline robot, and a differential turning method thereof. The deformable tracked pipeline robot includes a robot main body. Three tracked foot modules in a circular array are arranged on an outer side surface of the robot main body, each tracked foot module is connected to the robot main body through a center variable-diameter module. A spacing between the tracked foot module and the robot main body can be adjusted through the center variable-diameter module, making all three tracked foot modules in contact with an inner wall of a pipeline. According to a differential turning method based on space curve measurement, the pipeline robot can pass through pipelines with various curvature radii. A pipeline axis is measured by a Charge Coupled Device camera module as a bending curvature of a space curve. The accuracy of space curve fitting is improved by a recursive algorithm.

The invention discloses a pipeline high-frequency silencer based on acoustic mode modulation and a perforated pipe. The pipeline high-frequency silencer comprises a shell, and the interior of the shell is connected with a cylindrical inner pipe through a plurality of partition plates; the partition plates are parallel to the axial direction of the inner pipe and evenly arranged in the circumferential direction of the inner pipe. The partition plates divide an annular cavity formed between the shell and the inner pipe into a plurality of sub-cavities of the same size. Flanges are connected to two ends of the shell. The invention further discloses a design method of the pipeline high-frequency silencer based on acoustic mode modulation and the perforated pipe. The design method comprises a perforated design method of the inner layer of the shell and / or the inner layer of the inner pipe and a design method of the partition plate. According to the pipeline high-frequency silencer based on acoustic mode modulation and the perforated pipe, the problem that in the prior art, a sound absorption material which is prone to losing efficacy and harms human health is used for achieving high-frequency noise suppression is solved. High-frequency noise elimination is achieved through the partition plate and the perforated pipe, the structure is simple, and disassembly and replacement are convenient.

A method of repairing a pipe includes providing a pipe repair device, the pipe repair device comprising a spring and a gasket, the gasket defining a gasket top end, a gasket bottom end, and a gasket outer surface, wherein the gasket outer surface defines a plurality of raised ridges and recessed dimples; biasing the pipe repair device to an expanded configuration with the spring inside of the pipe; engaging the raised ridges of the gasket outer surface with an inner wall of the pipe; and creating a suction force between each of the recessed dimples and the inner wall of the pipe to retain the pipe repair device against the inner wall.

The invention discloses an intelligent operation and maintenance system for oil and gas field pipeline leakage detection, which comprises a quantum enhanced distributed optical fiber sensing unit, a leakage positioning unit and a self-healing unit, and is characterized in that quantum enhanced optical fibers implanted with nanoscale gratings are arranged along the outer wall of a pipeline, and a compressed laser light source is utilized to trigger vibration and sound wave signals; the superconducting quantum edge node performs quantum Fourier transform preprocessing on the signal, and realizes sub-meter accurate positioning by combining a space-time convolutional neural network model with pipeline physical parameters; and finally, the system drives the directional microwave device to activate the intelligent coating at the leakage point, the shape memory polymer microcapsule pre-buried in the pipeline coating is triggered to be broken and expanded, a self-adaptive sealing layer is formed, and full-closed-loop automatic response from quantum-level sensing to molecular-level repairing is completed. Detection and repair are completed autonomously, manual intervention is not needed, zero commuting time occupation is achieved, and the corresponding repair speed can be increased to the second level from the traditional day / hour level.

An adaptive variable-structure duct robot motion control method based on environmental sensing. A duct robot is a dual-swing-arm tracked mechanism, and onboard sensing devices include a depth camera, an IMU, a wheel speed sensor and a TOF module. The method comprises: a depth camera capturing an image of the interior of a duct to perform scenario recognition, segmenting planar and curved surfaces in the image on the basis of scenario recognition results, and extracting edge lines of the duct; using the edge lines to calculate the width of a straight duct, the curvature of a curved duct, the angle of a slope and the height of a step, in order to determine the passability of a robot; designing a path planner and a swing arm planner to generate a reference trajectory and a swing arm angle sequence of the robot, performing smoothing processing, and inputting the smoothed reference trajectory and swing arm angle sequence into an MPC motion controller; using data from the depth camera, an IMU and a wheel speed sensor to estimate the position and state of the robot by means of an ESKF algorithm, and inputting estimation results and a collision warning signal from a TOF module into the MPC motion controller in real time; and finally, outputting control signals for a locomotion electric motor and a swing arm electric motor. Thus, the adaptive variable-structure and autonomous motion of a robot in different scenarios is realized.

The invention relates to the technical field of valves, and discloses a convenient-to-clean pipeline valve for Fotiaoqiang wall boiling, which comprises a valve body and a knob mounted at the top of the valve body, a water inlet pipe and a water outlet pipe are fixedly mounted on two sides of the valve body respectively, an upper box body is fixedly mounted at the top of the water inlet pipe, and a lower box body is fixedly mounted at the bottom of the upper box body; a lower box body is fixedly installed at the bottom of the water inlet pipe, a cleaning assembly is arranged in the upper box body, a scraping assembly is arranged in the side, away from the valve body, of the water inlet pipe, and a filter plate is fixedly installed on the side, close to the valve body, of the interior of the water inlet pipe. The cleaning assembly comprises a rotating unit, a scraping unit and an extruding unit, the rotating unit comprises a driving motor fixedly mounted on one side in the upper box body, and the problem that dirt is inconvenient to isolate and collect, so that when a valve is opened, water flow possibly drives a small part of collected dirt to flow back, and the dirt is attached to a filter screen again is solved; and the cleaning of the filter screen is troublesome.

The invention discloses a self-cleaning double-venturi flow meter and a processing technology thereof, and belongs to the technical field of flow meters and processing technologies thereof, the self-cleaning double-venturi flow meter comprises a contraction end and an expansion end on a pipeline, and the contraction end and the expansion end are connected through a throat end; the guide cleaning mechanism comprises a rotating shaft installed on the pipeline, one end of the rotating shaft is fixedly connected to the first rotating handle, the other opposite end of the rotating shaft extends to an annular baffle at the center of the inner wall of the pipeline, and arc-shaped blocks arranged on pushing rods are arranged at the two ends of the outer portion of the annular baffle correspondingly; the arc-shaped block is provided with a fillet close to the liquid flowing direction, and the arc-shaped block is provided with a curved surface part connected with the annular baffle in an abutting mode. The technical problem that the actual use effect of the double-Venturi flow meter is poor due to the fact that the interior of a pipeline is generally arranged to be a fixing mechanism, adaptive flow adjustment cannot be conducted on the interior of the pipeline, and the structure of the double-Venturi flow meter cannot be conveniently adjusted according to the actual use condition to meet the use requirement can be solved.

Method for compensating liquid-transmitted acoustic disturbances of a liquid-tempered optical component (110) of a lithography system (1), wherein the disturbances of the optical component (110) as a first optical component (110) are compensated by means of a non-liquid-tempered second optical component (112) of the lithography system (1), comprising the steps: a) Receiving (S1) a first and second actual value (y 1 , y 2 ) of a position (P 1 , P 2 ) corresponding to the first and second optical components (110, 112), and b) Rules (S3) of the position (P 2 ) of the second optical component (112) to an adjusted target value (r 2 ) of the position (P 2 ) of the second optical component (112), which is set to an initial target value (r i ) of the position (P 2) of the second optical component (112) and the first actual value (y 1 ) of the position (P 1 ) of the first optical component (110).

A support for coaxial flanges of a double-coaxial coupling includes a circular support structure providing a primary mounting zone for attaching a primary flange for connecting a primary outer tube, and a secondary mounting zone for attaching a secondary flange for connecting a coaxial secondary inner tube. The primary and the secondary mounting zones are spaced apart from each other in a radial direction for centering the primary and the secondary flanges in a radially spaced coaxial manner. The primary mounting zone provides an outer circumferential connection region with at least three mounting points for attaching the primary flange. The secondary mounting zone provides an inner circumferential connection region with at least three mounting points for attaching the secondary flange. A thermal path within the circular support structure between the mounting points of the primary and secondary mounting zones is longer than the distance between the two points.

The utility model discloses a high-pressure protection structure for pipeline safety management, which is arranged at the butt joint position of a conveying main pipe and comprises a housing component sleeved on the conveying main pipe and an active pressure relief component capable of switching the communication state of the housing component and the conveying main pipe according to the pressure in the conveying main pipe, the active pressure relief assembly comprises a pressure relief pipe communicated with the main conveying pipe, the pressure relief pipe is sequentially divided into a liquid inlet section, a transition section and a liquid outlet section in the length direction, the liquid inlet section is located in the main conveying pipe, a plugging cock is arranged in the liquid inlet section and the transition section in a penetrating mode, and the communication state between the liquid inlet section and the liquid outlet section is switched through the plugging cock; when the pressure in the conveying main pipe fluctuates greatly, liquid in the conveying main pipe is discharged through the pressure relief pipe, so that pressure relief is achieved, normal operation of the water supply and drainage system is guaranteed, safety and stability caused by pressure over-limit leakage are avoided, and safety management of the water supply and drainage system is facilitated.

The utility model belongs to the technical field of pipe system plugging accessories and pipe plugs, and particularly relates to an internal expansion type hole channel plugging device, a plugging system and a device with a sealing hole. The internal expansion type hole channel plugging device comprises a sealing sleeve and an inner core preset in the sealing sleeve, the sealing sleeve is provided with a closed blocking end face at the far end and an extrusion and expansion side wall formed by extending from the edge, the extrusion and expansion side wall is provided with a conical inner surface, and the inner core is provided with a conical outer surface and an axial threaded hole. A pulling tool is screwed into the threaded hole to apply axial pulling force, so that the conical surfaces extrude each other to cause radial expansion of the sealing sleeve to realize hole channel sealing. The hole channel plugging device can be matched with a rivet nut gun to carry out convenient and reliable hole channel plugging operation. The hole channel plugging technology is suitable for industrial products needing straight hole sealing, such as electric driving devices, injection molds and power battery modules, has the characteristics of high sealing reliability, operation convenience and clean plugging, and effectively solves the problems of scrap pollution, sealing failure and the like of a traditional plugging technology.