62results about How to "Reduced jam risk" patented technology

The invention relates to an ultrasonic detection device for an oil pipeline defect. The ultrasonic detection device comprises a pipeline clean section, a defect detection section, and a power supply section, wherein the pipeline clean section and the defect detection section as well as the defect detection section and the power supply section are separately connected through universal joints, thepipeline clean section mainly comprises two pairs of petal-shaped leather cups that are staggered and overlaid, and is supported by spaced leather cups, when the leather cups are driven by pressure difference, the detection device advances towards the oil transfer direction; the defect detection section comprises three columns of ultrasonic sensors uniformly distributed in a circumferential direction, a probe signal processing system and an inertial navigation system; and the power supply section comprises a data storage system and a battery, the data storage system stores an ultrasonic signal, an inertial navigation signal and a mileage signal, and the battery powers a probe, inertial navigation and a mileage wheel. The ultrasonic detection device for the oil pipeline defect adopts an array probe, and analyzes primary echo by using an ultrasonic reflection single-pulse distance detection method so as to detect defects, thereby comprehensively detecting inner wall defects of the pipeline and effectively reducing defect data processing amount.

The invention discloses a deformation interior detector for big deformation, belongs to the technical field of pipe interior detectors, and solves problems that a deformation interior detector in theprior art is low in detection precision and cannot correct the mileage. The detector comprises an anti-collision power supply mechanism, a deformation measurement mechanism and a posture mileage measurement mechanism, wherein the anti-collision power supply mechanism, the deformation measurement mechanism and the posture mileage measurement mechanism are sequentially connected in a rotating manner. The deformation measurement mechanism comprises a central skeleton, an angle sensor, a data recording unit, and a plurality of swinging arm inductors which are distributed in the peripheral direction of the central skeleton. The swinging arm inductors are in rotating connection with the central skeleton, and the end parts of the swinging arm inductors make contact with the inner wall of a pipe.The detector provided by the invention can be used for detecting the deformation of the inner wall of the pipe.

The invention relates to a drilling fluid for drilling of a fractured igneous rock formation and a preparation method of the drilling fluid in the field of petroleum drilling. The drilling fluid is prepared from components in parts by weight as follows: 1,000 parts of water, 3-4 parts of drilling fluid bentonite, 2-3 parts of sodium carbonate, 2-3 parts of a polymer coating agent, 2-3 parts of potassium polyacrylate or a metal cation polymer, 5-10 parts of an organic amine inhibitor, 20-30 parts of an anti-sloughing reinforced wall fixation agent, 20-30 parts of sulfonated phenol formaldehyderesin, 5-10 parts of a sulfonate copolymer filtrate reducer, 20-30 parts of walchowite, 10-20 parts of an anti-salt and temperature-resistant fluid loss agent, 20-40 parts of superfine calcium carbonate, 50-70 parts of potassium chloride, 0-10 parts of an organic anti-friction compound and 10-20 parts of a nano-micro blocking agent, and the weight is increased to 1.30-1.85 g/cm<3> with a density weighting agent. The drilling fluid has good temperature resistance and lubricating property and excellent inhibition property and anti-sloughing wall fixation property and can effectively prevent thefractured igneous rock formation from collapsing; the rock carrying capability of the drilling fluid can be substantially improved, repeated grinding of larger falling blocks nearby a drill bit is prevented, the frictional resistance is reduced, the mechanical drilling speed is increased, and underground safety is guaranteed.

The invention relates to a pipeline plugging device with a resonance switch, and the pipeline plugging device is used for plugging a pipeline cut-off part during welding operation of a pipeline in use. According to the technical scheme adopted by the invention, a front end cover and a rear end cover are mounted at the end parts of a mandrel; a front leather cup is fixed to the front end cover; a rear leather cup is fixed to the rear end cover; a sliding sleeve is arranged in the middle of the mandrel in a sleeved manner; the side edge of the front leather cup and the sliding sleeve are connected by a supporting rod; an air cylinder is arranged between the sliding sleeve and the rear end cover; a vibrating rod is fixedly arranged on the sliding sleeve; a controllable one-way valve and a vibrating switch are mounted at the end parts of the vibrating rod. The pipeline plugging device is taken back in a hole shrinkage mode, so that resistance generated in a taking-back process can be reduced; the plugging device only comprises a mechanical system and an air pressure system, and does not have an electric control part, so that the use security on an oil-gas pipeline is higher.

The invention provides a paper currency form detection method, and belongs to the financial equipment field. The paper currency form detection method includes the steps: by means of two first sensorswhich are symmetrically arranged at two sides of the transmission surface of the first transmission path, acquiring the first state information of the paper currency transmitted on the first transmission path; and based on the first state information, acquiring the form of the paper currency. The paper currency form detection method can determine whether the paper currency are in the inclined state or the state that the neighboring paper currency are connected together, can make relatively more comprehensive prediction of the state of the paper currency, and can improve the determination accuracy. The invention also provides a paper currency form detection device. The paper currency form detection device includes a first transmission path, first sensors and a processor, wherein the two first sensors are symmetrically arranged at two sides of the transmission surface of the first transmission path in the transmission direction being perpendicular to the first transmission path; and thedistance between the two first sensors is not more than the standard length of paper currency. The paper currency form detection device has the advantages of being simple in structure, being convenient to use, being high in detection efficiency and being high in accuracy. The invention also provides self-service depositing and withdrawing equipment. The self-service depositing and withdrawing equipment includes the paper currency form detection device, and has higher usage stability.

The invention relates to a hydraulic control bypass valve type speed governing pipe cleaning device which is used for pipe cleaning operation. The shortcoming that the passing ability of an existing speed governing pipe cleaning device pipe in a pipe is not high is overcome. According to the technical scheme, a front end cover and a back end cover are arranged on the two sides of a barrel, a cup is arranged on the barrel, a center cylinder is arranged in the barrel, a valve cylinder is arranged in the center cylinder, a speed governing oil cylinder is installed at the end of the center cylinder, and a piston rod of the speed governing oil cylinder is connected with the valve element; a roller is installed on a hydraulic pump input shaft, a supporting spring is arranged between two hydraulic pumps, and the hydraulic pumps are arranged on the outer side of the back end cover; and an oil tank is arranged in the barrel, hydraulic pump oil sucking ports are connected to the oil tank, hydraulic pump oil outlets are connected to a throttle valve, a throttle valve oil return port is connected to the oil tank, and the front end of the throttle valve is connected with the speed governing oil cylinder. By means of the cleaning device, a speed controller is free of electrical apparatus elements, and safety and reliability are achieved; the bypass valve structure is relatively large, and blockage is not likely to occur; and the passing ability of the device in the pipe is high.

A tunnel header main driving omnibearing direction adjusting device used in the field of tunnel headers comprises a main driving shell body, a pushing oil cylinder, an upper left side torque oil cylinder, an upper right side torque oil cylinder, a bottom left side torque oil cylinder, a bottom right side torque oil cylinder, a left side upper end torque oil cylinder, a left side lower end torque oil cylinder, a right side upper end torque oil cylinder and a right side lower end torque oil cylinder. The main driving shell body is arranged in a front shield shell body. The front end of the pushing oil cylinder and the main driving shell body are fixed. The tail is fixedly connected with a supporting shield. The upper left side torque oil cylinder and the upper right side torque oil cylinder are fixed on the upper portion of the main driving shell body. The bottom left side torque oil cylinder and the bottom right side torque oil cylinder are fixed on the lower portion of the main driving shell body. A telescopic end is supported on the front shield shell body. The device is novel in structure and high in practicability, during a tunnel header construction process, header blocking risks can be lowered, direction adjusting is convenient, and the fact that a header carries out upward heading at any time can be kept at any time.

The invention relates to a variable-diameter spherical pipe cleaner which is used for welding operation of an inservice pipeline. According to the technical scheme, an inner shell is a rubber spherical shell, an injection connector and a liquid discharge connector are arranged outside the inner shell, a gas discharge hole is formed above the mounting position of the inner shell; a check valve is arranged at the inner side of the injection connector, a solenoid valve is arranged at the inner side of the liquid discharge connector, and a vibration sensor is arranged at the inner side of the gas discharge hole; a microcontroller and a battery are arranged in the inner shell, and the microcontroller is connected with the solenoid valve and the sensor; and an eccentric block is arranged on a motor output shaft, and a motor is arranged outside a pipeline corresponding to the mounting position of the pipe cleaner. According to the pipe cleaner disclosed by the invention, reducing recovery is adopted, so that resistance in recovery can be reduced; and the discharge reducing of the spherical shell is controlled by only adopting a vibrating signal, thus being reliable in control.

The invention discloses a rotating shaft and an electronic device. The rotating shaft comprises a first support, a tooth piece and a first limiting structure. The first support comprises a first fixed end and a first meshing end; the tooth piece is meshed with the first meshing end; the first fixed end is fixed to a first body; the first meshing end comprises M first teeth which are arranged in parallel and used for being meshed with the tooth piece so as to enable the tooth piece to rotate relative to the first support; the M is a natural number; the first limiting structure is arranged on one sides of the M teeth and is used for preventing the tooth piece from continuing to rotating when second teeth on the tooth piece are in contact with the first limiting structure. The rotating shaft and the electronic device are used for solving the technical problems that in the prior art, according to a tablet computer which can be opened in a 360-degree turn-over mode and a common notebook computer, different rotating shafts need to be designed and produced, and the design cost and the production cost are wasted. The technical effects that the rotating shafts of the tablet computer which can be opened in the 360-degree turn-over mode and the common notebook computer can be generally used, and the design cost and the production cost are saved are achieved.

The invention provides a pipeline detection pipe cleaner with multiple layers of foaming bodies. The pipeline detection pipe cleaner comprises a pipe cleaner body and a foaming body assembly arrangedon the outer side of the pipe cleaner body, wherein the foaming body assembly comprises at least two layers of foaming bodies which are sequentially arranged in a sleeved mode, and at least one layerof foaming body is different from other foaming bodies in material and/or density, so that the foaming bodies of the foaming body assembly are different in hardness and flexibility, the passing ability of the pipeline detection pipe cleaner is improved, some pipelines with large bending degrees can be passed through more easily, and the risk that the pipeline detection pipe cleaner is blocked is reduced; and moreover, the outermost foaming body is in interference fit with a to-be-detected pipeline, so that a certain of differential pressure exists and maintains in the front and rear ends of the pipeline detection pipe cleaner, and the pipeline detection pipe cleaner can operate stably.

The invention discloses a TBM and a continuous deslagging device thereof. The continuous deslagging device comprises a screw conveyer, a first conveyor, a grab bucket and a second conveyor. The firstend of the screw conveyer is arranged on a slag accumulating area at the bottom of a cutterhead. The second end of the screw conveyer is arranged above a slag accumulating area at the bottom of a mainbeam. The first end of the first conveyor is located between the second end of the screw conveyor and the slag accumulating area at the bottom of the main beam. The grab bucket is used for grabbing accumulated slag located on the slag accumulating area at the bottom of the main beam and grabbing the accumulated slag to the first conveyor. The second conveyor is arranged below the second end of the first conveyor, so that the second conveyor receives the accumulated slag conveyed by the first conveyor and the accumulated slag grabbed by the grab bucket. According to the continuous delsagging device, the accumulated slag at the bottom of the cutterhead and the bottom of the main beam can be fast removed, so that the phenomenon that when the TBM passes through a crushed zone or other unfavorable geologies, due to the fact that a large amount of slag is accumulated at the bottom of the cutterhead, the cutterhead is blocked; and meanwhile the bottom deslagging efficiency of the open main beam of the TBM is improved, and it is guaranteed that the TBM fast passes through the surrounding rock crushed zone and other unfavorable geologies.

The invention discloses a TBM (Tunnel Boring Machine) real-time tunneling jamming risk early warning method which comprises the following steps: setting a tunneling termination length judgment value and an effective tunneling length judgment value, and setting an effective tunneling data sequence to be empty; collecting tunneling data; carrying out effective tunneling state judgment on TBM tunneling according to the collected tunneling data; when TBM tunneling is in an effective tunneling state, making effective tunneling point judgment on tunneling points of tunneling data; when TBM tunnelingis in an invalid tunneling state, judging invalid tunneling points; adding and storing the tunneling data of the tunneling point into an effective tunneling data sequence, and calculating the lengthof the effective tunneling data sequence; comparing the length of the effective tunneling data sequence with an effective tunneling length judgment value if the tunneling point is the effective tunneling point; calculating a stuck machine index final value according to tunneling data in the effective tunneling data sequence; and judging and displaying the risk degree of the card machine. The jamming risk in tunneling is effectively identified, the jamming risk is alarmed in real time, the economic loss caused by jamming is reduced, and the construction safety is ensured.

The invention provides a powder metallurgy gear hub forming die. The powder metallurgy gear hub forming die comprises an upper punching die and a lower punching die, each of the upper punching die and the lower punching die comprises an outer punching part and a middle punching part, the outer punching parts are arranged on the outer sides of the middle punching parts in a sleeving mode, a plurality of positioning rings arranged in the circumferential direction are arranged on the rear sides of the inner wall surfaces of the outer punching parts, and a plurality of positioning keys matched with the positioning rings are arranged on the outer wall surfaces of the middle punching parts in the circumferential direction at intervals. According to the powder metallurgy gear hub forming die, the stability in the die production process is improved, the die clamping risk is reduced, and the service life of the die is prolonged; the quality stability in the part production process is improved; the jumping precision of the external tooth end surface of the part is improved, and external tooth end surface machining is omitted.

The invention relates to an out-of-pile detector calibration method, which comprises the following steps of: S1, acquiring detector response factors at all positions in a pile by simulating a process of transporting neutrons from the inside of the pile to an out-of-pile detector; s2, a theoretical xenon oscillation process is simulated and constructed, and fission neutron generation rates of all positions in the reactor in the xenon oscillation process are obtained; s3, according to the detector response factors and the fission neutron generation rate, response current distribution of all the out-of-pile detectors in the xenon oscillation process is obtained; and S4, calculating the calibration coefficient by using the current distribution. According to the invention, while the implementation of a field xenon oscillation test is cancelled, a set of complete calibration coefficient with enough precision can still be provided, the disturbance to a reactor core is reduced, and the control difficulty of the reactor (especially at the end of the service life) is reduced, so that the pressure of operators is also reduced.