68 results about "Pigging" patented technology

The invention relates to a slurry pipeline ball pushing system and method. The pipeline cleaning device comprises a ball serving device, the ball serving device comprises a ball pushing device, a ventilation device and a cleaning device, the ball pushing device is used for pushing pipeline cleaning balls into a conveying pipeline, the ball pushing device and the conveying pipeline are in interference fit, the ventilation device pushes the pipeline cleaning balls to move in the conveying pipeline through compressed air, and the cleaning device is used for cleaning and blow-drying the pipeline cleaning balls; the closed ball changing device is detachably connected to the conveying pipeline; the detection device comprises a detection cavity, and when the pipeline cleaning balls enter the detection cavity, the detection device judges whether the pipeline cleaning balls are damaged or not in an air pressure detection mode; and the ball receiving device is used for receiving the pipeline cleaning balls, can reversely push the pipeline cleaning balls back to the ball serving device, and can push the pipeline cleaning balls into the closed ball changing device when detecting that the pipeline cleaning balls are damaged. The pipeline cleaning efficiency is improved, and the service life of the small pipeline cleaning balls is prolonged.

The invention discloses a fuel gas system management method and system based on data analysis, and belongs to the technical field of fuel gas system management.The fuel gas system management method comprises the steps that a wax deposition kinetic model and a deep neural network are combined, and a hybrid prediction model architecture is designed; the wax deposition kinetic model is used for describing physical and chemical processes of wax deposition and providing basic prediction capability; the deep neural network is used for capturing a non-linear relationship and a complex mode in the data and improving the accuracy and generalization ability of prediction; based on an improved particle swarm optimization algorithm (PSO-ADE), a self-adaptive pigging decision engine is designed; initializing the algorithm to generate an initial particle swarm; operating an algorithm, and evaluating and updating the particles according to a target function; through iterative optimization, an optimal pigging strategy is found; and feedback data is collected, and the algorithm is further adjusted and optimized, so that the accuracy and effectiveness of decision making are improved. The pipeline cleaning strategy of the oil pipeline can be optimized.

The utility model relates to the technical field of pneumatic ash conveying, in particular to a nitrogen backflow pigging ash conveying structure of a weighing type bin pump. Comprising a bin pump body, a fluidization disc is arranged at the bottom of the bin pump body, one side of the bottom of the bin pump body communicates with an air inlet pipe, an air inlet valve set is arranged on the air inlet pipe, the other side of the bottom of the bin pump body communicates with an ash conveying pipe, a discharging valve is arranged on the ash conveying pipe, a bearing support is arranged on the periphery of the lower portion of the bin pump body, and a weighing sensor is arranged at the bottom end of the bearing support. A first pressure transmitter is arranged on the top of the bin pump body, and a backflow mechanism is arranged between the ash conveying pipe and the ash storage container. The feeding weight is accurately recognized and the air inlet weight is accurately controlled through the weighing sensor, the material-air ratio can be accurately and reasonably controlled, when pipe blockage occurs, the backflow mechanism is opened, a high-pressure material-air mixture returns to the ash storage container through the backflow mechanism due to the pressure difference, the pipe blockage problem caused by insufficient fluidization is prevented, and continuous ash conveying is achieved.

The invention discloses an efficient hydrogen doping system and method for a natural gas pigging station, and belongs to the technical field of natural gas hydrogen doping. The system comprises an intelligent natural gas flow dividing and mixing system and a pigging device protection system; part of natural gas is introduced to be premixed with hydrogen, the uniformly premixed hydrogen-doped natural gas is mixed into a natural gas main line, and efficient mixing of hydrogen and part of natural gas and mixing of hydrogen and main line natural gas are achieved in stages; the pipe cleaning device protection system is used for intermittently introducing uniformly premixed hydrogen-doped natural gas to disturb a dead gas area near the barrier strip tee joint in normal operation. According to the efficient hydrogen doping system and method for natural gas pigging station transformation, the natural gas hydrogen doping technology and process are optimized, the investment of hydrogen doping facilities is reduced, and the safety of the hydrogen doping process is guaranteed.

The utility model relates to an anti-collision pigging valve, which belongs to the field of valves, and comprises a valve body, a valve seat, a ball body, a valve rod, a transmission mechanism and a pigging device assembly, the valve body is provided with an inlet channel, an outlet channel and a pigging device receiving and transmitting channel, the anti-collision ball is characterized in that an anti-collision sleeve made of a hard material is arranged in the through hole of the ball body, the anti-collision sleeve is fixedly installed in the through hole of the ball body through at least two radial screws, the diameter of an inner hole of the anti-collision sleeve is equal to that of an inner hole of the inlet-outlet channel, and spherical curved surfaces with the diameter equal to that of the ball body are arranged at the two ends. The anti-collision sleeve can be replaced on line after being damaged due to long-term collision. The device has the advantages of low manufacturing cost, good use performance, convenience in maintenance and replacement, low maintenance cost and the like.

The invention discloses a pneumatic conveying method and device for particle materials, a storage medium and a program product, and belongs to the technical field of pneumatic conveying. The invention aims to solve the technical problems of high energy consumption and low efficiency caused by pipe cleaning in the last stage of intermittent pneumatic conveying. The method is applied to a system comprising at least two pump sets and a shared conveying mother pipe, the conveying outlet pressure of the first pump set is monitored, and when the conveying outlet pressure is lower than a preset target switching pressure value, a conveying task is seamlessly switched to a second pump set full of materials. Furthermore, according to the method, the target switching pressure value is adaptively adjusted by recording pressure data (such as the maximum value and the high-pressure duration) of a historical period, and optimization can be carried out by combining a unit energy consumption index according to operation mode instructions such as the highest efficiency or the optimal energy efficiency. According to the method, a new efficient conveying stage is used for replacing a low-efficiency pipe cleaning stage, continuous conveying is achieved, the conveying capacity and the energy efficiency of the system are improved, and the intelligence and the working condition adaptability of the system are enhanced.

The application discloses a methanol pipeline overhaul replacement system and method, which comprises a pipeline conveying system, a movable pigging system, a high-efficiency displacement system and a residual medium safe treatment system. The application can effectively recover, empty and safely treat the medium in the methanol pipeline under the overhaul condition, ensure that no toxic and harmful gas directly enters the atmosphere during the recovery and discharge process, and achieve the purpose of high-efficiency recovery and safe discharge of methanol.

The present invention discloses a safety guarantee system and method for hydrogen - doped natural gas based on blind - end accumulation control. The system includes a forced flow - disturbing system and an instrument monitoring system connected to the blind - end side of the pig - launching tee of an existing pig - launching and receiving system. The forced flow - disturbing system is used to connect the flow path on the blind - end side of the pig - launching tee of the existing pig - launching and receiving system with the flow path of the pig - bypass of the existing pig - launching and receiving system, and is used to disturb the gas stagnant area on the blind - end side of the pig - launching tee. The instrument monitoring system is used to monitor the medium flow conditions in the forced flow - disturbing system and the secondary guarantee system. Based on the long - term stratification trend of hydrogen - doped natural gas after standing still and combined with the actual situation of pipeline transportation, the present invention implements control countermeasures in the pig - launching tee area where gas blind - end standing still and accumulation are most likely to occur, and sets up a forced flow - disturbing system, a secondary guarantee system and an instrument monitoring system, effectively solving the relatively hidden but extremely harmful problem of blind - end gas stratification.

The present application relates to sample preparation workshop equipment dust removal method technical field, specifically, a kind of sample preparation workshop variable frequency pressure feedback pigging dust removal method and system.Its method includes: when sample preparation equipment starts, corresponding electric butterfly valve is opened, and equivalent load value is calculated according to equipment type, and basic operating frequency is obtained by substituting exponential decay function, and drive fan starts operation;Collect the negative pressure value of the most unfavorable point of pipeline, dynamically adjust the frequency of fan according to the negative pressure deviation and change rate, and limit the adjusted frequency in the preset proportion range of basic operating frequency;When sample preparation equipment stops, corresponding electric butterfly valve is closed, if there is still equipment running, recalculate target frequency and adjust;After all electric butterfly valves are closed, open end electric butterfly valve and lift fan to power frequency operation, after purging, close end electric butterfly valve and stop fan.The present application solves the problems of high energy consumption, poor dust removal effect and safety hazards of pipeline dust accumulation of traditional dust removal system.

The utility model relates to the technical field of gas production pipeline cleaning, in particular to a gas production pipeline cleaning auxiliary device which comprises a mounting cylinder and a flow guide pipe, an adjusting screw rod is arranged at the upper end of the flow guide pipe and rotatably connected with the flow guide pipe, the mounting cylinder is sleeved on the outer side of the adjusting screw rod, and a plurality of supporting wheel carriers are arranged on the outer side of the mounting cylinder. The supporting wheel carriers are matched with positioning columns arranged on the outer sides of the flow guide pipes in a sleeving mode, and the positioning columns are fixedly connected with the flow guide pipes and used for driving the supporting wheel carriers to be unfolded and folded when the flow guide pipes move. Spraying assemblies are arranged at the lower ends of the flow guide pipes. The spraying assembly at the end of the flow guide pipe can flush the inner wall of the pipeline, the flow guide pipe is pushed through the adjusting screw rod, the flow guide pipe drives the positioning columns to move together, all the supporting wheel frames are unfolded or folded at the same time, and the supporting wheel frames support the flow guide pipe from the inner side of the pipeline after being unfolded. And when the pipe cleaning auxiliary device moves in pipelines with different sizes, the flow guide pipe can still be kept in the center of the pipelines and cannot deviate, and the stability is good.

The invention discloses a pigging period monitoring method and system based on pipeline effusion and hydrate, and the method comprises the steps: collecting data, and carrying out the preprocessing of the data, and obtaining a data set; performing multi-dimensional analysis on the data set, and extracting data features; constructing a pigging period prediction model based on the data features; acquiring historical pigging data to train the pigging period prediction model; and constructing an expert scoring model to obtain an expert score, verifying and optimizing the trained pigging prediction model based on the expert score, and performing pigging real-time monitoring based on the optimized pigging period prediction model. The pipeline cleaning data is monitored in real time through the pipeline cleaning period prediction model to obtain task feedback data, the pipeline cleaning prediction model is verified and optimized in combination with expert scores, pipeline cleaning management is carried out based on the optimized pipeline cleaning period prediction model, monitoring and safety evaluation on the health state of a pipeline are more facilitated, and the pipeline cleaning efficiency is improved. And the accurate prediction period of the pipe cleaning operation is given.

The invention belongs to the technical field of pipe cleaning devices, and particularly relates to a large-caliber thermal long-distance pipeline cleaning device which comprises a power-assisted crawling robot, and the two ends of the power-assisted crawling robot are connected with a universal connecting mechanism and a flushing mechanism correspondingly. The water pressure in the hydraulic pipe cleaning mechanism can be controlled and adjusted by controlling the flow of water through the first flow control valve and the second flow control valve, and the hydraulic bag can be controlled to expand or contract by adjusting the water pressure in the hydraulic pipe cleaning mechanism, so that the hydraulic bag can adapt to pipelines with different pipe diameters; when the hydraulic bag is controlled to be expanded to a certain degree, the hydraulic pipe cleaning mechanism can be fixed through the hydraulic bag, so that power-assisted crawling is conveniently realized by matching with a power-assisted crawling robot subsequently; the hydraulic pipe cleaning mechanism can be prevented from moving backwards under the action of reverse thrust to influence normal wriggling and crawling when the telescopic mechanism on the power-assisted crawling robot controls the front end part to extend forwards, and the practicability of the pipe cleaning device can be effectively improved.

This invention provides a method for cleaning ultra-deepwater long-distance gas-liquid mixed transport subsea pipelines, belonging to the field of marine oil and gas engineering and flow safety assurance technology. The method includes the following steps: accurate data analysis and operational condition simulation; calculation of the minimum ethylene glycol injection volume required for each stage; prediction of the maximum slug flow rate and its impact on the platform separator and trap; determination of the specific duration, gas volume control range, and gas source switching node for each cleaning stage based on the simulation results, while developing an emergency plan; sequential execution of the four stages: production gas carrying liquid stage, recirculating gas purging and carrying liquid stage, recirculating gas cleaning stage, and production gas cleaning stage; and depressurization via a balancing valve, removal of the cleaning tool, and product analysis. This invention achieves controllable risks, reduced time, and minimized production loss in pipeline cleaning operations through a multi-stage gas source switching strategy, integrated real-time online simulation and early warning technology, and optimized slug flow control and ball launch / receiver procedures.

The present invention relates to an internal scraping and washing device and a cleaning method for deep-water pipelines in offshore oil and gas exploitation, belonging to the technical field of oil pipeline cleaning. The internal scraping and washing device includes a power unit, and a turbine mechanism, a speed reduction mechanism and a pigging mechanism are successively connected in series from top to bottom below the power unit; a plurality of traveling mechanisms are successively connected in series from bottom to top above the power unit. When the pigging of the internal scraping and washing device is carried out, the device will not completely block the pipeline, can ensure the fluidity of the fluid, and the crushed dirt is discharged by the fluid, so it is not easy to cause blockage, and can effectively reduce the risk of pipeline bursting. Since the fluidity can be maintained, the production of the oil production platform can be carried out without interruption, and the platform does not need to provide enough propulsion fluid, which greatly reduces the cost of pigging operation. It can repeatedly charge the power unit by using the turbine to provide power, and can ensure long-distance operation. It solves the problems that the existing pigging device is easy to block the pipeline and there is a risk of pipeline bursting.

The application belongs to the technical field of pipeline cleaning, and particularly discloses a pig for a carbon dioxide pipeline, which comprises a pig body and an electrostatic treatment unit, wherein the pig body comprises a pig framework and a leather cup, the leather cup is sleeved on the pig framework, the electrostatic treatment unit comprises an electrostatic adsorption module, an electrostatic locking module, a discharge module and an insulating plate, the electrostatic locking module and the discharge module are connected to the insulating plate, the electrostatic adsorption module is installed on the electrostatic locking module, and the electrostatic treatment unit is connected to the pig body. The application can realize adsorption and locking of electrostatic charges in the pigging process, separate the electrostatic treatment device from the pig body after the pigging operation is completed, realize discharge of the electrostatic treatment device through the discharge module, and enable the discharged electrostatic treatment device to be continuously installed on the pig for the next pigging operation, so that the electronic elements in the pig can be effectively prevented from being seriously damaged.

This application discloses a gas system management method and system based on data analysis, which belongs to the technical field of gas system management. It includes combining a wax deposition kinetics model with a deep neural network to design a hybrid prediction model architecture; the wax deposition kinetics model is used to describe the physical and chemical processes of wax deposition and provide basic prediction capabilities; the deep neural network is used to capture nonlinear relationships and complex patterns in the data to improve the accuracy and generalization of predictions; based on an improved particle swarm algorithm (PSO-ADE), an adaptive pigging decision engine is designed; the algorithm is initialized to generate an initial particle swarm; the algorithm is run to evaluate and update the particles according to the objective function; the optimal pigging strategy is found through iterative optimization; feedback data is collected and the algorithm is further adjusted and optimized to improve the accuracy and effectiveness of decisions. This application can optimize the pigging strategy of oil pipelines.

A pipeline pigging element (10) that changes its size in an axial and a radial direction as a function of applied pipeline pressure. The pigging element includes at least two circumferential zones (13, 15) having different section modulus than one another, each of the zones changing at different rates from one another between an uninflated and an inflated state at the applied pipeline pressure. The pigging element reacts to changes in pipe geometry, having a first length and a first diameter at a first applied pipeline pressure and a second length and a second diameter different than the first at a second applied pipeline pressure. As the pigging element wears, it becomes easier to inflate at the applied pressure and sealing contact with the pipe wall remains substantially unaffected. No onboard pumps or fluid circuits are required to inflate the pigging element.

The utility model provides a ball-passing type finished oil gathering pipe, which belongs to the technical field of oil gathering pipes and comprises a base, a support frame arranged at the top of the base, a manifold component arranged on the support frame, the manifold component comprises a plurality of groups of inlet pipelines, and a plurality of groups of outlet pipelines arranged on one side of the plurality of groups of inlet pipelines. A plurality of groups of three-way valves are respectively arranged between the plurality of groups of outlet pipelines and the plurality of groups of inlet pipelines, a plurality of groups of connecting pipelines are respectively arranged between the plurality of groups of three-way valves and between the plurality of groups of outlet pipelines and the plurality of groups of inlet pipelines, and the plurality of groups of three-way valves are arranged, so that a user can randomly combine the plurality of groups of inlet pipelines and the plurality of groups of outlet pipelines; multiple groups of external sources are communicated with multiple groups of external destinations, the connecting flexibility and the conveying efficiency of the device are improved, when a pipeline is cleaned, a user can rotate the valve element to ensure that the pipeline is smooth when the device is used for cleaning the pipeline, the residual quantity of liquid in the pipeline is reduced, and the practicability of the device is improved.

The invention discloses a cable self-crawling pipe cleaning robot for complex scaling in a pipe, and relates to the field of industrial pipeline maintenance. The device is mainly composed of a chemical agent injection system, a variable-diameter scraping system, a dirt real-time recovery system, an anchoring self-crawling system I (II) and a front-end monitoring system. The chemical agent injection system cooperates with the variable-diameter scraping and cutting system to work, chemical-mechanical combined type pipeline cleaning is achieved, the pipeline cleaning efficiency is improved, and the cleaning period is shortened. The variable-diameter scraping system adopts a ball screw, a variable-diameter sliding block, a variable-diameter guide rail base and a variable-diameter plate, so that the multi-pipe-diameter adaptability of the pipe cleaning robot is improved, and the cleaning operation process is simplified; the dirt real-time recovery system is provided with a flow suction pipe, a flow suction disc and a collection disc, real-time recovery of dirt is achieved, and the pipeline pollution risk is reduced. The pipeline cleaning device is compact in structural design, chemical-mechanical combined type pipeline cleaning and multi-pipe-diameter pipeline cleaning operation can be achieved, the pipeline cleaning efficiency is effectively improved, and the pipeline pollution risk is reduced.

The utility model relates to the technical field of oil and gas pipeline cleaning equipment, in particular to a ball pushing tool for pipeline cleaning, which comprises a ball pushing rod, one end of the ball pushing rod is connected with a ball pushing frame, the ball pushing rod is sleeved with a sliding frame, and the sliding frame is used for keeping the ball pushing rod at a preset position in a ball serving cylinder. According to the ball pushing tool for pipeline cleaning, it can be guaranteed that the ball pushing rod is always located at the preset position in the ball serving barrel, the acting point during ball pushing operation is more stable and controllable, deviation of the posture of equipment is avoided, and the ball clamping phenomenon is reduced; the sliding function of the sliding frame replaces a traditional impacting mode, so that the ball pushing process is softer, impact damage to equipment is avoided, and the problem that the equipment and a pipeline are possibly damaged due to the fact that a metal hammer directly impacts a pipe cleaner or detection equipment can be effectively solved; the tool is simple in structure and easy to carry, the ball pushing process is more efficient, manpower input and operation time are reduced, and the tool is particularly suitable for large-diameter pipelines and long-distance operation.

The utility model provides an air compressor air storage tank drainage device which comprises a drainage pipe installed in the center of the lower surface of an air compressor air storage tank body in a communicated mode, supporting legs are installed on the lower surface of the air compressor air storage tank body, a valve is installed at the section, close to the air compressor air storage tank body, of the drainage pipe, and a pipe cleaning assembly is detachably installed at one end of the drainage pipe. And an attaching block is attached to the periphery of the drainage pipe and detachably connected with the pipe cleaning assembly, and the attaching block is in a U shape. The pipe cleaning assembly is inserted into the water drainage pipe to clean dirt in the water drainage pipe, the cleaned dirt is accumulated in the water drainage pipe, then water is drained by opening the valve, water flows into the water drainage pipe from the air storage tank body of the air compressor to wash away the accumulated dirt, and the pipe cleaning assembly is convenient to disassemble, assemble and clean. Dirt in the drainage pipe can be effectively cleaned, and it is guaranteed that the service life of the pipeline is not affected by impurities after long-time use.

The utility model discloses a petrochemical pipeline pigging mechanism, including movable base, the top of movable base is equipped with the strip seat, the top of strip seat is equipped with the limit rail, one side slidingly connected with two limit blocks of limit rail top, the top of limit block is installed with the bearing seat, one side fixed mounting of bearing seat top end is equipped with the lower frame body, the upper end swing mounting of lower frame body inside is equipped with the upper frame body, and the top of upper frame body extends to the outside of lower frame body and is equipped with the vertical frame, is equipped with two guide rails on the inner wall of vertical frame, and the outer wall of guide rail is slidably connected with two rail seats, and the outer wall of a plurality of rail seats is installed with the movable frame, and the bottom of vertical frame is installed with the lift cylinder, and one side outer wall on movable frame upper end is installed with motor, and one end of motor penetrates movable frame and is installed with the roller brush. The utility model not only has reached the purpose of double -way adjustment pigging mechanism overall height, to promote the application scope of pigging mechanism, and has reached the purpose of electric type to petrochemical pipeline inside carries out pigging.

A multi-pipe-diameter self-adaptive pigging pry connector device comprises a receiving valve and an adjusting pipe. The two sides of the receiving valve communicate with connecting pipes correspondingly, and the connecting pipe on one side of the receiving valve communicates with the conveying pipeline and is used for receiving or sending out the pipe cleaner. One end of the adjusting pipe is communicated with the connecting pipe on one side of the receiving valve, and the other end is communicated with the conveying pipeline; a plurality of adjusting plates are arranged on the inner wall of the adjusting pipe in a surrounding manner; the end, close to the receiving valve, of the adjusting plate is rotationally arranged on the inner wall of the adjusting pipe. A plurality of adjusters are arranged on the outer wall of the adjusting pipe, penetrate through the side wall of the adjusting pipe and are correspondingly connected to the end, away from the receiving valve, of the adjusting plate, and the adjusters are used for controlling the adjusting plate to rotate. The problems that when conveying pipelines with different pipe diameters are connected, an existing connecting device is poor in pipe diameter adaptability, and cost is increased when special connector devices are arranged respectively are solved.

The invention discloses a high-performance pigging valve, and relates to the technical field of pigging valves, the high-performance pigging valve comprises a valve body, the valve body is internally provided with a horizontally extending medium flow channel and a vertically extending pigging device channel, the medium flow channel and the pigging device channel are orthogonally communicated, and a valve cavity is formed at the intersection; the sealing valve seat assembly comprises an upper valve seat ring assembly and a lower valve seat ring assembly which are installed in the valve cavity in a sealed mode, the axis of the upper valve seat ring assembly and the axis of the lower valve seat ring assembly are both perpendicular to the axis of the medium flow channel, and arc-shaped sealing faces with the same sphere center are arranged on the opposite sides of the upper valve seat ring assembly and the lower valve seat ring assembly. And the ball body is rotatably arranged between the arc-shaped sealing surfaces of the upper valve seat ring assembly and the lower valve seat ring assembly. Through multiple structural innovation and optimization, the technical breakthrough of non-stop pipe cleaning, reliable sealing under all working conditions, safe and convenient operation and economical and efficient maintenance is achieved, and the pipeline cleaning device is particularly suitable for high-pressure and continuous operation pipeline systems needing frequent pipe cleaning.

The invention relates to the technical field of inspection and pipe cleaning, in particular to a pneumatic conveying inspection and pipe cleaning robot. Comprising a vehicle body, a mechanical arm, an environment detector and a laser radar, the laser radar is installed on the front portion of the vehicle body and used for detecting the surrounding environment. The environment detector is arranged on a vehicle body and is used for detecting surrounding environment data; two sides of the vehicle body are in transmission connection with crawler wheels; the mechanical arm comprises an arm seat, an arm joint and an inspection pipe cleaner; the inspection pipe cleaner is mounted on the mechanical arm, so that the robot not only can monitor the service life, the abrasion degree and the like of a pipeline through the ultrasonic detector, but also can deal with the sudden pipeline blockage condition and carry out daily cleaning work on adhesive substances in the pipeline; and the automation degree of the pneumatic conveying inspection pipe cleaning robot is improved.

The present application relates to a kind of device and method for inducing jet cleaning and synchronous vibration suppression power generation by ocean current, device is made of four groups of impeller driving module, four groups of transmission mechanism, four groups of power generation module, upper and lower two groups of jet module.Concrete is as follows: ocean current drives impeller rotation, drives piston periodic movement by transmission mechanism, and the axial jet of outside of device upper and lower end plate is formed, the effect of preventing and cleaning the organism adhered to the surface of marine riser is realized.The rotation of impeller, suction and injection of ocean current and the overall free rotation of device can disturb the shedding of vortex behind marine riser, so as to play the effect of inhibiting the vibration of marine riser;Impeller rotation drives the rotation of eccentric gear shaft with magnetic pole by transmission mechanism, so that current is generated in the surrounding conductive coil, synchronous vibration suppression and power generation are realized.

The present application relates to a kind of pig three-way pipe automatic steering device, pig includes detection component, pig component, detection component rear end is rotatably connected with the front end of pig component;Two axis-symmetric fluid passages are opened in the detection component and pig component, respectively, and the rear end of detection component and pig component is equipped with the screw electromagnetic valve of control the opening and closure of the fluid passage, so that the force difference of the left and right sides of detection component and pig component is generated to drive device to complete steering movement;Adjusting device outer diameter size telescopic component is equipped in the periphery of detection component and the periphery of pig component.The present application controls the opening and closure of the fluid passage of the left and right sides of detection component and pig component by screw electromagnetic valve, so that the force difference of the left and right sides of detection component and pig component is generated to drive device to complete steering movement, it is simple to operate, and degree of automation is high, reduce the workload of staff and the time of completing pigging operation, improve the efficiency of pigging operation.

The present invention discloses a sealing device and a construction method for marine hose construction. The sealing device includes: a pipe cleaning ball, an end pressure plate, a connecting component and a pulling component. The pulling component consists of a pulling steel pipe and a lifting ring. The pulling steel pipe is a through pipe pre-buried in the pipe cleaning ball and coaxial with the pipe cleaning ball. The connecting component consists of a connecting steel pipe and a valve. The connecting steel pipe is a through pipe pre-buried in the pipe cleaning ball and non-coaxial with the pipe cleaning ball. The pipe cleaning ball adopts high-strength polyurethane foam, which has a larger contact area with the pipeline than the traditional form, has better pollution cleaning function and sealing, thereby preventing corrosion of the pipeline or pipe mouth flange and extending the life of the pipeline. The connecting component ensures the internal pressure balance of the pipe cleaning ball. The present invention is connected to the sea end flange before laying the pipeline to achieve good sealing. Therefore, after the pipeline is laid and connected to the submarine riser, when the device is dismantled, the seawater entering the riser can be brought out, further reducing the risk of pipeline corrosion.

The present application provides a crude oil pipeline pigging wax layer stripping in-situ observation and wax removal resistance test experimental device, which comprises a power control system, a temperature control system, a wax removal experimental system and a data acquisition system; the wax removal experimental system comprises a transparent organic glass track for simulating a crude oil pipeline and a water bath temperature control platform, and further comprises a pig placed at the transparent organic glass track; the transparent organic glass track is fixed at the water bath temperature control platform; the water bath temperature control platform is placed below a water bath temperature control platform guide rail and is connected with a stepping motor of the power control system through a transmission mechanism; a tension sensor of the data acquisition system is connected with the pig through a rope; the present application overcomes the "black box problem" existing in the pipeline oil transportation process, and the in-situ direct observation of the wax removal process is beneficial to the intuitive understanding of the wax removal process, and the internal relationship between the wax removal efficiency, the wax removal driving force and the wax layer damage force and the temperature, the wax removal speed and the wax deposit properties can be explored through experiments.

The utility model discloses a ton bag weighing and batching device which comprises a stock bin, a feeding pipe is arranged at the upper end of the stock bin, a discharging pipe is arranged at the lower end of the stock bin, a supporting frame is arranged on the outer side of the stock bin, at least two weighing sensors are arranged at the lower end of the supporting frame, the tail end of the discharging pipe is connected with a hose, and the tail end of the discharging pipe is connected with the hose. The tail end of the hose is connected with a conveying pipe, a pipe cleaning mechanism is arranged on the conveying pipe, compressed gas is input into the conveying pipe by the pipe cleaning mechanism to blow off raw materials, and an ash removal mechanism is arranged on the outer wall of the stock bin and drives the outer wall of the stock bin to vibrate and fall off the raw materials. And the weighing accuracy is improved.