10685results 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 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 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.

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.

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.

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.

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).

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.

The invention relates to the technical field of pipeline joints, in particular to a connecting and locking pipe joint for quickly mounting a pump pipe of a portable submersible pump, which comprises a pipe head, a locking structure, a rotating structure, a taking and placing structure, an adjusting structure and a compensating structure, the pipe head can be quickly and firmly connected through the locking structure to adapt to different pipe pump intervals, the connection stability and the sealing performance are improved, the installation difficulty is reduced, and the installation time is shortened; through the rotating structure, the taking and placing structure and the adjusting structure, the pipe joint can be conveniently carried, meanwhile, the position and angle of the grip can be flexibly adjusted according to site requirements after installation, the pipeline joint is stably supported, and the working stability is enhanced; the compensation structure enables the connecting pipe to slide and rotate, when the length of the pump pipe is changed due to the water level or other factors, automatic compensation can be achieved, sealing performance and normal work can be maintained, connection of the connecting pipe and the drainage pipe can be assisted, the connecting efficiency is improved, it is ensured that the submersible pump continuously and efficiently pumps water in the water level fluctuation scene, and the maintenance workload is reduced.

A motion control method for an adaptive self-reconfigurable pipeline robot based on environmental perception includes: acquiring internal images of the pipeline for scene recognition, segmenting planar surfaces and curved surfaces in the images according to recognition results, and extracting boundary lines of the pipeline; calculating a straight-pipe width, a bent-pipe curvature, a slope angle, and a step height to analyze passability of the 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, and inputting the reference trajectory and the swing-arm angle sequence into a model predictive control (MPC) motion controller; estimating a position and state of the robot through an Error State Kalman Filter (ESKF) algorithm, and inputting estimation results and collision warning signals into the MPC motion controller; and finally outputting a signal for control of a motor and a swing-arm motor.

The invention belongs to the technical field of intelligent disaster relief equipment, and particularly relates to a long-endurance high-altitude fire-fighting unmanned aerial vehicle, which comprises a flying fuselage, no water tank load is arranged on the fuselage, a water pipe is fixedly arranged in the fuselage, and one end of the water pipe is communicated with a sprinkler head; the other end of the water pipe communicates with a water injection head, and a cushioning sealing assembly is arranged in the water injection head. The control seat is arranged on the machine body, a plurality of detection units are arranged on the control seat and the machine body, and a power supply end is arranged on one side wall of the control seat; through the design of the ground end, the buffer sealing assembly and the like, the unmanned aerial vehicle can carry a cable and a water pipe, the water pipe or the cable can be prevented from excessively floating in the air while long-time endurance fire extinguishing in the air is completed, the flight stability is guaranteed, various data can be collected, and the rescue efficiency is improved.

The utility model discloses a quick plugging device for pressure test, which comprises a mounting seat, a movable rod, an elastic sealing sleeve, a limiting part, an extrusion part and a driving piece, the movable rod can be movably arranged on the mounting seat along the axial direction of the movable rod, the elastic sealing sleeve is sleeved on the outer side of the movable rod, the limiting part is arranged on the mounting seat and abuts against one axial end of the elastic sealing sleeve, and the extrusion part is arranged on the elastic sealing sleeve. The extrusion part is arranged on the movable rod and abuts against the end, away from the limiting part, of the elastic sealing sleeve, the driving piece is arranged on the installation base and connected to the movable rod so as to drive the movable rod to move, and when the movable rod moves to drive the extrusion part to move towards the limiting part, the extrusion part and the limiting part extrude the two ends of the elastic sealing sleeve correspondingly; therefore, at least part of the elastic sealing sleeve elastically deforms outwards in the radial direction of the elastic sealing sleeve. According to the quick plugging device for the pressure test, when a pipeline needs to be plugged, operation is more convenient, more time and labor are saved, labor intensity can be reduced, sealing performance is better after plugging, and the plugging effect is better.

The pipeline non-excavation state repairing tool is used for arranging a layer of lining pipe in a to-be-repaired pipeline, the pipeline non-excavation state repairing tool comprises an unwinding machine, a winch and a spiral forming welding mechanism, the to-be-repaired pipeline is provided with a first end and a second end, the unwinding machine is arranged at the first end of the to-be-repaired pipeline, the winch is arranged at the second end of the to-be-repaired pipeline, and the spiral forming welding mechanism is arranged at the second end of the to-be-repaired pipeline. The winch is arranged at the second end of a to-be-repaired pipeline, the spiral forming welding mechanism is arranged at the first end of the to-be-repaired pipeline, the unwinding machine is sleeved with a steel strip coil, the steel strip coil is used for supplying a steel strip to the spiral forming welding mechanism, and the spiral forming welding mechanism is used for spirally bending the steel strip and welding the steel strip into a lining pipe. The end, close to the winch, of the lining pipe is connected with the traction end of the winch, and the winch is used for pulling the lining pipe to move towards the second end of the to-be-repaired pipeline, so that the spiral forming welding mechanism can conveniently bend the steel belt into a spiral shape at the first end of the to-be-repaired pipeline and weld the steel belt into the lining pipe to repair the to-be-repaired pipeline.

Provided is a hose including a first connector assembly including a regulator assembly, a second connector assembly, and a hose assembly coupled to the first and second connector assemblies. The hose assembly includes an inner hose member having first and second ends, an outer hose member having first and second ends, a first hose connector assembly coupled to the first ends of the inner hose member and outer hose member and the first connector assembly, and a second hose connector assembly coupled to the second ends of the inner hose member and outer hose member and the second connector assembly.

The invention belongs to the field of pipeline welding construction, and relates to an opening pipeline fire operation anti-explosion method. An operation opening is formed in the gas incoming upstream of the to-be-transformed cutting part of the pipeline. And a long-nozzle air bag is placed into the pipeline through the operation opening, and the long-nozzle air bag is filled with a medium till the pipeline is blocked by the long-nozzle air bag. The long-nozzle air bag has good deformability, can be suitable for pipelines of different specifications, and is good in universality. And after the pipeline is cut and transformed, the medium in the long-nozzle air bag is discharged, the long-nozzle air bag is taken out of the pipeline through the operation opening, and the operation opening is blocked. According to the device, flammable and explosive media can be effectively prevented from entering a fire operation point, the blocking effect is good, the device can be conveniently detached after operation, the long-nozzle air bag can be repeatedly used, and the device can be applied to pipelines of different specifications and is good in universality.

The invention provides a temporary plugging device for pipeline sealing performance detection, and relates to the field of pipeline sealing, and the temporary plugging device comprises a mounting rack which comprises a connecting part and a plurality of mounting parts, and the plurality of mounting parts are uniformly distributed on the peripheral side of the connecting part in a radial pattern with the connecting part as the center; the multiple clamping devices are in one-to-one correspondence with the connecting parts, are arranged at the ends, away from the mounting part, of the connecting parts and are used for fixing the mounting frame to the port of the to-be-detected pipeline; the blocking plate is the same as the section of the pipeline to be detected in shape, an annular groove is formed in the peripheral side of the blocking plate, and the blocking plate is connected with the connecting part; the annular sealing bag is made of an elastic material, is arranged in the annular groove and is used for sealing a gap between the plugging plate and the to-be-detected pipeline; and the expansion driving device is arranged between the plugging plate and the mounting frame and is used for injecting an expansion medium into the annular sealing bag. The air bag sealing device has the flexibility of air bag sealing and the stability of mechanical sealing.

The invention relates to the technical field of sewage treatment, in particular to a sewage pipe network intelligent monitoring and fault early warning analysis system for sewage treatment. Comprising the following steps: a real-time monitoring unit; a data processing unit; the early warning analysis unit is used for adopting an improved LSTM-random forest fusion model when the data is sufficient and switching to an improved grey prediction model when the data is insufficient based on a data volume self-adaptive double-model switching strategy; a system cooperation unit; and a terminal interaction unit. According to the invention, the model switching control module determines the data sufficient state according to the sample density, achieves the adaptive switching of the improved LSTM-random forest fusion model and the improved gray prediction model, and carries out the special training of the flow-liquid level cooperative change physical characteristics of the blocking and leakage faults in combination with the fault feature training module. The method can adapt to scenes with different data volumes, and improves the adaptability and accuracy of recognition of two types of faults of blockage and leakage of the sewage pipe network.

The utility model relates to the technical field of plugging devices, and discloses a plugging device for a polyethylene gas pipe, which comprises a plug I and a plug II, the plug II is connected in the plug I in a sliding manner, the plug I is internally in threaded connection with a threaded column, one end of the threaded column is fixedly connected with a handle, the threaded column is arranged in the plug I in a penetrating manner, and the handle is fixedly connected with the handle. And a transmission assembly is arranged at the other end of the threaded column and comprises a connecting shaft and a conical column, one end of the connecting shaft is fixedly connected to the other end of the threaded column, the conical column is rotationally connected to the outer wall of the connecting shaft, and a fixing plate is fixedly connected to the interior of the second plug. According to the pipeline plugging device, the handle is rotated to drive the threaded column to be screwed in, the threaded column drives the connecting shaft and the conical column to move forwards, the conical column generates radial thrust on the wedge-shaped block through the special conical structure of the conical column, the wedge-shaped block drives the positioning block to move outwards, and the effect that the plugging device can be rapidly fixed to the inner walls of pipelines of various sizes is achieved.

The invention discloses a vibration and noise reduction device for a supporting system combined with an acoustic black hole and the supporting system, and relates to the technical field of vibration and noise reduction, the vibration and noise reduction device for the supporting system combined with the acoustic black hole comprises a first acoustic black hole structure and a second acoustic black hole structure, the first acoustic black hole structure is used for being arranged between the supporting structure and a to-be-supported part, and the first acoustic black hole structure makes contact with the supporting structure and the to-be-supported part; the second acoustic black hole structure is used for being connected to a supporting column of the supporting structure. The supporting system comprises a supporting structure and the vibration and noise reduction device for the supporting system combined with the acoustic black hole. The vibration and noise reduction effect is improved, and the probability of engineering problems such as fatigue damage, instability, connection looseness and noise of the supporting structure and the foundation is reduced.

The utility model relates to the technical field of water supply pipelines, in particular to a water supply pipeline with an anti-blocking structure. Comprising a water supply pipeline, at least two anti-blocking assemblies are arranged on the water supply pipeline at intervals in the water flow direction, and multiple sets of flow guide fins are arranged on the inner wall, corresponding to the upstream end of each anti-blocking assembly, of the water supply pipeline at equal intervals; the anti-blocking assembly comprises an expanding settling cavity integrally arranged with the water supply pipeline, a fixing rod is arranged in the middle of a cavity body of the expanding settling cavity in the radial direction, a hinge shaft in the middle of the fixing rod is connected with two crossed connecting rods, and the upstream ends of the two connecting rods are connected to the inner wall of an expanding section of the expanding settling cavity through springs correspondingly. The downstream ends of the two connecting rods are jointly connected with the edge of the nickel-titanium filter screen, the nickel-titanium filter screen triggers pore diameter adjustment based on water flow pressure difference changes, the pore diameter of the nickel-titanium filter screen can stretch out and draw back in a self-adaptive mode between 50 micrometers and 500 micrometers, and the self-adaptive pipeline anti-blocking function is achieved.