43results about How to "Realize safe operation" patented technology

The invention discloses a method and a system for predicating the collision possibility of a plurality of stackers-reclaimers in a stack yard as well as anti-collision control method and system. The method for predicating the collision possibility of the plurality of stackers-reclaimers in the stack yard comprises the following steps of: detecting the position information of a mobile station arranged in the large-machine rotary centre of each stacker-reclaimer and the large-arm head centre of the stacker-reclaimer based on a reference station; determining the minimum distance between the large arms of any two stackers-reclaimers in the plurality of stackers-reclaimers according to the detected position information of each stacker-reclaimer; and judging the collision possibility of the large arms of two stackers-reclaimers according to the minimum distance. Therefore, the invention can judge the collision possibility between the stackers-reclaimers so that operators can further process according to the possibility.

The invention discloses a passive vision navigation unmanned forklift system for an explosion-proof warehouse. The passive vision navigation unmanned forklift system comprises a forklift body, a dispatching device, an explosion-proof camera, an explosion-proof controller, an inductor, an alarm and a mechanical anti-collision device. The real-time position of a forklift is determined by processingand analyzing the real-time beacon information of the forklift and stored corresponding beacon information, and the optimal path selection is continuously carried out on a path until the target position is reached during the traveling. The passive vision navigation unmanned forklift system realizes unmanned operation of passive visual navigation in the explosion-proof warehouse, endangering of human health is avoided, the manpower investment is reduced, the operation efficiency is improved, and working time is shortened.

The invention provides a diffracted wave imaging method and device, electronic equipment and a storage medium, and relates to the technical field of high-resolution imaging in seismic exploration. Themethod comprises the steps of: reading to-be-imaged seismic data and calculating a dip angle field and an observation dip angle according to the seismic data; constructing a reverse-polarity and reverse-stationary phase filter according to the dip angle field and the observation dip angle; obtaining an edge diffracted wave imaging model on the basis of the reverse-polarity and reverse-stationaryphase filter; and calculating a diffracted wave imaging image according to the edge diffracted wave imaging model and the seismic data. Through the method, reflected wave fields can be better suppressed, high-resolution edge diffracted wave imaging results can be obtained, and the positions, faults, breakpoints and coal pinch out points of geological abnormal edge diffracted bodies can be correctly positioned, so as to realize the safe operation of oil / gas migration and coal exploitation.

The invention discloses an automatic assembly device for assembling a die-locking oil cylinder. The automatic assembly device comprises a rack, wherein one end of the rack is detachably connected with the die-locking oil cylinder; the other end of the rack is provided with a feed mechanism for assembling a pull rod of the die-locking oil cylinder; the feed mechanism comprises a slide mechanism slidably connected with the rack; the slide mechanism is controlled by a drive mechanism which is arranged on the rack; and the pull rod is fixed on the slide mechanism. Slide of the slide mechanism on the rack is realized through the drive mechanism, thus assembly work for the pull rod of the die-locking oil cylinder fixed on the rack is realized; and the existing manner of enabling the pull rod to penetrate through the die-locking oil cylinder by virtue of oblique-pulling of a travelling crane and pushing-pulling of a forklift is replaced by the manner, thus a safe operation in assembly for the pull rod of the die-locking oil cylinder is realized, the labour is reduced, and the effect of increasing the working efficiency is achieved.

The invention discloses a high-altitude working tool lifting device for a power transmission line. The high-altitude working tool lifting device comprises a shackle, a hanging ring, a support, a winding drum, a gear set, gear transmission shafts, a telescopic handle and an adjustable handle, wherein the a lifting rope is wound on the winding drum and used for lifting tools. The hanging ring is fixed to the lower portion of the support. The shackle is clamped on the hanging ring. The winding drum, the gear set, the gear transmission shafts, the telescopic handle and the adjustable handle are all arranged on the support. The gear transmission shafts are fixed to the support. The gear set is fixed to the gear transmission shafts. The winding drum is fixed to a driven gear shaft. The telescopic handle is fixedly arranged on a driving gear shaft. The adjustable handle is arranged on the telescopic handle. The high-altitude working tool lifting device for the power transmission line has the advantages of being light, convenient to carry and install, easy to operate, and high in safety and adaptability, capable of saving labor and bringing convenience to operators to get the required working tools from the ground at high altitude, and the like.

The invention relates to a transport carriage for transport of a patient support and / or an operating table column of an operating table. Transport carriages are known comprising a chassis which is connectable with the patient support and / or with the operating table column of the operating table. As described in connection with the first embodiment according to upon swiveling of the castors 510, 514 inward, i.e. toward the fork-shaped opening 550, a collision with the operating table base of a mobile operating table might occur which complicates or even prevents movement of the transport carriage 500, for example after transfer of a patient support of an operating table. In order to avoid this, delimiting units 558, 560 are provided which are constructed similar to the delimiting units according to the first embodiment. At the front ends of the guiding rods 583, 584 respective contact elements 568, 569 are arranged so as to be rotatable about the longitudinal axis of the respective guiding rod such that upon contact of the contact element 568 with the castor 510 or contact of the contact element 569, respectively, only rolling friction, but no sliding friction occurs.The delimiting unit 558 is shown in a release position.

The invention discloses a balance adjustable material assembly hanger for a soft tool. The balance adjustable material assembly hanger comprises a base frame, a material balance adjustment mechanism,a hanging point balance adjustment mechanism, a hanging buckle and hanging hooks, wherein the material balance adjustment mechanism and the hanging point balance adjustment mechanism are arranged on the base frame in a sliding manner; the hanging buckle is arranged on the hanging point balance adjustment mechanism; the base frame comprises at least two transverse rods and at least two longitudinalrods; four corner positions of the base frame are connected with the material balance adjustment mechanism respectively; the material balance adjustment mechanism is connected to the transverse rodsat the left and right ends of front and rear sides of the base frame respectively in the sliding manner; and the hanging point balance adjustment mechanism is connected to the middle of the base frameand the upper ends of the hanging hooks are fixed at the lower end of the material balance adjustment mechanism. According to the balance adjustable material assembly hanger for the soft tool, disclosed by the invention, the distance between the hanger and the hanging hooks is adjusted according to different sizes of materials, so that the transportation of the materials with different sizes on aautomobile assembly transportation line is met; the balance adjustable material assembly hanger for the soft tool is reasonable in structure, stable in operation performance and simple and convenientto operate; and manual adjustment is not needed so that the working efficiency is improved.

The invention provides a temperature response type self-degradation temporary plugging agent and a well repairing method, and belongs to the technical field of oil and gas exploitation. The temperature response type self-degradation temporary plugging agent comprises the following components in percentage by mass: 4%-6% of an alkenyl-containing monomer, 0.1%-1% of a cross-linking agent, 0.1%-1% of an initiator, 0.05%-0.5% of a degradation catalyst and the balance of water, wherein the cross-linking agent is polyethylene glycol diacrylate, and the degradation catalyst is 2-amino-2-methyl-1-propanol or ethylene glycol amine. Polyethylene glycol diacrylate is used as a cross-linking agent, 2-amino-2-methyl-1-propanol or ethylene glycol amine is used as a degradation catalyst, the temporary plugging agent is gelatinized under the action of temperature, the strength is kept within a period of time, and then as time goes on, the polyethylene glycol diacrylate loses efficacy under the action of the degradation catalyst, the gel temporary plugging agent is degraded into a linear polymer, the final viscosity is reduced, and self-degradation of the gel is realized.

The invention provides a steel strand mounting method for a wind driven generator supporting tower frame prestressed structure. The steel strand mounting method includes the steps that tower top anchorage devices and tower bottom anchorage devices are mounted; single steel strands are pulled into target tower bottom anchor holes through a winch, and tower bottom clamping pieces are used for anchoring; steel strands are pulled into target tower top anchor holes, and tower top clamping pieces are used for anchoring the steel strands; the target tower top anchor holes and the target tower bottomanchor holes are converted until a first preset number of target tower top anchor holes and a first preset number of target tower bottom anchor holes are hung and anchored; and the tower top anchoragedevices and the tower bottom anchorage devices are converted until a second preset number of tower top anchorage devices and a second preset number of tower bottom anchorage devices are hung and anchored. The steel strands are mounted in the manners of single hanging and tensioning and opposite angle mounting, the mounting efficiency is high, the safety coefficient is large, the energy consumption is low, mounting is stable, the problems of mutual twisting, winding and interfering between the mounted steel strands are solved, the height of a foundation inner cavity of a tower barrel is reduced, and the material cost, the construction cost and the labor cost are reduced.

The invention discloses a special electrolytic lead anode strip hoisting and assembling device, which belongs to hoisting machinery and structurally comprises a rectangular frame type hanging bracket. Two short steel channels (1) and two long steel channels (2) are welded to form the rectangular frame type hanging bracket, a pair of suspension lugs (3) are longitudinally symmetrically welded on waists of the two long steel channels (2), 24 to 36 pairs of hook holes are disposed on two legs of each long steel channel, a hook (5) with a round bar is penetratingly mounted in each pair of hook hole, the lower end of each hook (5) with the round bar is bent to form an 'L'-shaped structure, a rotating handle (6) with an oblong hole is disposed on a bar body of each hook (5) with the round bar and connected with a push-and-pull rod (7). By the aid of the special electrolytic lead anode strip hoisting and assembling device, manual strip discharging is omitted, labor efficiency is greatly improved, and labor intensity is effectively relieved.

The invention relates to power system maintaining equipment, and particularly relates to a high-voltage cable deicing device. According to the high-voltage cable deicing device, a deicing vehicle is hung on a cable through two walking wheels; a framework of the deicing vehicle is internally provided with a weight box so as to guarantee that the gravity center of the deicing vehicle is located at the center of the framework; three deicing units in the deicing vehicle are distributed between a driving walking wheel and a driven walking wheel at equal intervals, and one pressing wheel unit is placed between two hoisting units; a control circuit in a remote controller can realize data interaction through a wireless signal receiving-transmitting circuit, a wireless signal receiving-transmitting circuit in an electric cabinet and a deicing vehicle control circuit; the deicing vehicle control circuit outputs a motor control signal to a motor driving circuit which is used for driving a motor to rotate; and the motor is used for driving the driving walking wheel to rotate. The high-voltage cable deicing device disclosed by the invention controls the deicing vehicle hung on the cable to be deiced in a remote control manner so as to realize remote control work. The high-voltage cable deicing device is applicable to deicing the high-voltage cable.

The invention discloses an evaluation data processing method and system based on underground engineering parameters, and relates to the technical field of oil and gas exploitation. The method comprises the steps that characteristic parameters such as bit pressure, rotating speed, torque, displacement and drill bit vibration in different time periods are obtained in real time through a near-drilling sensor and sent to a control center to be processed, the processed parameters are stored in a register, and an evaluation model is established through an extreme value search algorithm for evaluation analysis; a historical data scatter diagram is established through the evaluation model and comprehensive drilling experience, and underground working conditions are judged and fed back to an underground drill bit. According to the method, parameters such as the bit pressure, the rotating speed, the torque, the displacement and drill bit vibration in the drilling process can be read in real time, the evaluation model is established to evaluate and analyze the underground working condition, the hysteretic nature of the above-well evaluation analysis amount is overcome, the drilling safety and the drilling efficiency are improved, and the drilling cost is reduced.

The invention discloses a horizontal well deflecting section well trajectory optimization method based on stratum thickness change. The method comprises the following steps that 1, multi-well logginginformation is finely compared, lithofacies and stratum thickness change characteristic parameters are analyzed; 2, the stratum calibration is carried out on the seismic data according to the analysisresult of the multi-well logging information in the step 1, then the seismic data are finely processed, and the thickness and structure change rule of a target stratum series is found out; 3, well logging and seismic data results are combined, a thickness abnormal layer in the deflecting section is found out, and the stratum thickness variation and the burial depth variation range of the thickness abnormal layer are determined; 4, small-layer subdivision is carried out on the interior, the upper layer and the lower layer of the thickness abnormal layer in the deflecting section according to the electrical identification marks, and the electrical identification marks are arranged; and 5, risk well trajectory design is carried out, and an optimized drilling scheme is proposed. According tothe method for optimizing the well trajectory under the condition that the stratum thickness of the deflecting section of the horizontal well changes, a design thought and an operation method are provided, and a practical favorable tool is provided for high-quality landing of a horizontal well.

The invention provides an industrial data transmission method. The industrial data transmission method specifically comprises the following steps: (1) reading obtained data; (2) carrying out priorityidentification on the obtained multiple pieces of data; (3) performing priority sequence marking on the plurality of data; (4) determining transmission frequencies of data with different priorities; and (5) preferentially processing the data with higher priority to realize subsequent operation. According to the invention, the transmission priorities or transmission frequencies of different data obtained by the industrial acquisition equipment can be determined to realize safe operation; and priority grading can be carried out on the obtained data, the transmission frequencies of the data withdifferent priorities are further determined, the data with high priorities can be preferentially transmitted, the data with high priorities can be processed in advance, and the data transmission stability is guaranteed.

The invention provides a CP III plane net measuring method. The method includes the steps that firstly, a total station is erected between two CP III points of a left line, CP III prisms are inserted in the CP III points for measurement, wherein each of a front line, a rear line, the left line and a right line of the total station is provided with n pairs of CP III points, namely 2n CP III points in total; secondly, after measurement of the station is finished, the most tail m prisms of the left line and the most tail m prisms of the right line are moved to the forefront side in the advancing direction of measurement, the total station is moved to the right line from the left line and advances to the position between a pair of spaced CP III points of the right line, a station is set again for measurement, and the total 2n CP III points in n pairs in each of the front line and the rear line are measured; thirdly, after measurement of the station is finished, the most tail m prisms of the left line and the most tail m prisms of the right line are moved to the forefront side in the advancing direction of measurement again, the total station is moved to the left line from the right line again and advances to the position between a pair of spaced CP III points of the left line, a station is set again for measurement, and the total 2n CP III points in n pairs in each of the front line and the rear line are measured; and the steps are repeated in this way, so that measurement of each CP III point is achieved. By the adoption of the measuring method, the requirement for the measuring accuracy of a rail can be met, and observation can be convenient.

The invention discloses a power equipment remote control switch mechanism which comprises a switch structure shell, wherein the switch structure shell is internally provided with a first mounting plate and a second mounting plate; a protective shell is arranged on the limiting box body; an insulating limiting plate is arranged on the limiting box body; a first mounting side plate is fixed at the upper end of the insulating limiting plate; a second mounting side plate is fixed at the lower end of the insulating limiting plate; a first conductive block is arranged on the first mounting side plate; a second conductive block is arranged on the second mounting side plate; the first conductive block is electrically connected with the first conductive connecting column; the second conductive connecting column is electrically connected with the second conductive block; two limiting clamping edges are fixed on the insulating limiting plate; the insulating limiting plate is connected with a conducting strip in a sliding manner. The beneficial effects of the mechanism are that the mechanism is convenient to assemble and disassemble, the purpose of safe operation can be achieved, and the mechanism is safe, reliable and convenient to use.

The invention discloses a monitoring alarm device for building construction safety management and a system thereof. The unmanned aerial vehicle comprises a main body, a bottom plate, rollers, a protective shell, an electric push rod, a wing plate, a sealing strip, a solar panel, an extension rod, a supporting plate, a driving motor, a lead screw, a connecting plate, a transverse rod, a through hole, a guide rod, a shell, a baffle, a storage battery, a fixing plate, an air cylinder, a conveying plate, an unmanned aerial vehicle unit, a transverse partition plate, a vertical partition plate, a rotating door, a mounting box, a rotating motor, a fixing base, a rotating head, a camera and a voice prompt unit. The system comprises an alarm unit, a display screen, a monitoring unit, an image acquisition module, an image storage module, an image recognition module, an image comparison module, a signal transceiving module, a control unit, a control module, a positioning module, an analysis module, a thermal sensing module and a man-machine interaction module. The building construction monitoring device has the advantages that the monitoring device can move in real time in the construction process, effective monitoring is facilitated, the safety of building construction personnel is guaranteed, and the supervision function is achieved.

The invention provides a temperature-responsive self-degradation temporary plugging agent and a workover method, belonging to the technical field of oil and gas exploitation. Components comprising the following mass percentages: Components comprising the following mass percentages: 4% to 6% of vinyl-containing monomers, 0.1% to 1% of crosslinking agents, 0.1% to 1% of initiators , 0.05% to 0.5% of the degradation catalyst and the rest of the water, the cross-linking agent is polyethylene glycol diacrylate, the degradation catalyst is 2-amino-2-methyl-1-propanol or ethylene glycol Alcoholamine. In the present invention, polyethylene glycol diacrylate is used as a crosslinking agent, and 2-amino-2-methyl-1-propanol or ethylene glycol amine is used as a degradation catalyst. Maintain strength for a period of time, and then as time goes by, polyethylene glycol diacrylate will fail to cross-link under the action of a degradation catalyst, degrading the gel temporary plugging agent into a linear polymer, and finally reduce the viscosity to realize self-degradation of the gel .

The invention provides an anti-explosion spray head for an ultrahigh-voltage converter transformer. The anti-explosion spray head for the ultrahigh-voltage converter transformer comprises an externalspray head pipeline, a liquid inlet pipeline and a liquid inlet mixing cavity; the liquid inlet pipeline is fixed in the external spray head pipeline; the liquid inlet mixing cavity and the liquid inlet pipeline are coaxially arranged; an expansion joint capable of stretching along the axial direction is arranged between the liquid inlet pipeline and the liquid inlet mixing cavity; the liquid inlet pipeline and a fire fighting pipeline are fixedly connected and keep communication; the external spray head pipeline is fixedly connected with the fire fighting pipeline, and arranged on the outer layer of the liquid inlet pipeline in a sleeving manner; the other end of the external spray head pipeline is an open end; a spray head is arranged on the liquid inlet mixing cavity; and a driving unitis also arranged on the external spray head pipeline. The invention further provides a fire fighting system using the fire fighting spray head. The anti-explosion spray head for the ultrahigh-voltageconverter transformer and the fire fighting system in the invention have the advantages that the spray head is hidden in the external spray head pipeline when the fire fighting system does not work;the spray head cannot be damaged when explosion occurs; after the explosion occurs, the spray head stretches out from the external spray head pipeline to work, so that an anti-explosion effect is realized; therefore, the spray head is prevented from being impacted by explosion; and normal operation of the fire fighting system is ensured.

The invention provides a CP III plane net measuring method. The method includes the steps that firstly, a total station is erected between two CP III points of a left line, CP III prisms are inserted in the CP III points for measurement, wherein each of a front line, a rear line, the left line and a right line of the total station is provided with n pairs of CP III points, namely 2n CP III points in total; secondly, after measurement of the station is finished, the most tail m prisms of the left line and the most tail m prisms of the right line are moved to the forefront side in the advancing direction of measurement, the total station is moved to the right line from the left line and advances to the position between a pair of spaced CP III points of the right line, a station is set again for measurement, and the total 2n CP III points in n pairs in each of the front line and the rear line are measured; thirdly, after measurement of the station is finished, the most tail m prisms of the left line and the most tail m prisms of the right line are moved to the forefront side in the advancing direction of measurement again, the total station is moved to the left line from the right line again and advances to the position between a pair of spaced CP III points of the left line, a station is set again for measurement, and the total 2n CP III points in n pairs in each of the front line and the rear line are measured; and the steps are repeated in this way, so that measurement of each CP III point is achieved. By the adoption of the measuring method, the requirement for the measuring accuracy of a rail can be met, and observation can be convenient.

The invention discloses an automatic assembly device for assembling a die-locking oil cylinder. The automatic assembly device comprises a rack, wherein one end of the rack is detachably connected with the die-locking oil cylinder; the other end of the rack is provided with a feed mechanism for assembling a pull rod of the die-locking oil cylinder; the feed mechanism comprises a slide mechanism slidably connected with the rack; the slide mechanism is controlled by a drive mechanism which is arranged on the rack; and the pull rod is fixed on the slide mechanism. Slide of the slide mechanism on the rack is realized through the drive mechanism, thus assembly work for the pull rod of the die-locking oil cylinder fixed on the rack is realized; and the existing manner of enabling the pull rod to penetrate through the die-locking oil cylinder by virtue of oblique-pulling of a travelling crane and pushing-pulling of a forklift is replaced by the manner, thus a safe operation in assembly for the pull rod of the die-locking oil cylinder is realized, the labour is reduced, and the effect of increasing the working efficiency is achieved.

The invention relates to power system maintaining equipment, and particularly relates to a high-voltage cable deicing device. According to the high-voltage cable deicing device, a deicing vehicle is hung on a cable through two walking wheels; a framework of the deicing vehicle is internally provided with a weight box so as to guarantee that the gravity center of the deicing vehicle is located at the center of the framework; three deicing units in the deicing vehicle are distributed between a driving walking wheel and a driven walking wheel at equal intervals, and one pressing wheel unit is placed between two hoisting units; a control circuit in a remote controller can realize data interaction through a wireless signal receiving-transmitting circuit, a wireless signal receiving-transmitting circuit in an electric cabinet and a deicing vehicle control circuit; the deicing vehicle control circuit outputs a motor control signal to a motor driving circuit which is used for driving a motor to rotate; and the motor is used for driving the driving walking wheel to rotate. The high-voltage cable deicing device disclosed by the invention controls the deicing vehicle hung on the cable to be deiced in a remote control manner so as to realize remote control work. The high-voltage cable deicing device is applicable to deicing the high-voltage cable.

The invention discloses a long steel rail hoisting numerical control synchronous centralized control system with an electrical anti-swing function. The system involves a crane (1), a relay (2) and a PLC (3), wherein a translation motor (5) is mounted on the crane (1), the PLC (3) is connected with the relay (2), and the relay (2) is connected with the translation motor (5) through a translation frequency converter (6). When the system is used, the swing amount of a lifting hook in a translation process can be restrained through the electrical anti-swing function, the system is a brand new control mode and has the characteristics of being easy to control and implement, and meanwhile, in the long-steel-rail synchronous centralized control lifting operation process, the rail grabbing successrate of a lifting appliance and the field operation efficiency are improved, and safe operation is achieved.

The invention discloses a method for optimizing the well trajectory of the deflection section of a horizontal well based on the change of the formation thickness, comprising the following steps: 1. Finely comparing the logging data of multiple wells, analyzing the characteristic parameters of lithofacies and formation thickness changes; 2. Calibrating according to the well logging , finely process the seismic data, and find out the stratum thickness and structure change law of the target stratum; 3. Combine the logging and seismic data results to find out the abnormal thickness layer in the deflection section, and determine the stratum thickness variation and buried depth of the abnormal thickness layer. 4. Carry out subdivision of sublayers in the abnormal thickness layer and the upper and lower layers in the build-up section according to the electrical identification marks, and set the electrical identification marks; 5. Design the trajectory of the risky well and propose an optimized drilling plan. The method for optimizing the trajectory of the well under the condition of the stratum thickness variation in the kickoff section of the horizontal well disclosed by the invention provides a design idea and an operation method, and provides a practical and advantageous tool for high-quality landing of the horizontal well.

The invention discloses a window glass cleaning device. The device comprises a door frame, glass, an upper window wiping rod, a lower window wiping rod and a movable handle, wherein the glass is embedded and fixed in the door frame, and fixing rods are installed on the surface, close to the outside of a window, of the door frame; every two of the four fixing rods form a group, one group of fixingrods is provided with the upper window wiping rod, and the other group of fixing rods is provided with the lower window wiping rod; pulley grooves are formed in the surfaces of the four fixing rods; pulleys are installed at the upper end and the lower end of the upper window wiping rod through two fixing screws, and pulleys are installed at the upper end and the lower end of the lower window wiping rod through two fixing screws; the upper window wiping rod can slide back and forth on one group of fixing rods through the pulleys, and the lower window wiping rod can slide back and forth on the other group of fixing rods through the pulleys; and magnets are arranged on the surface of the movable handle and can be magnetically adsorbed to the upper window wiping rod and the lower window wipingrod. The device is convenient to operate and high in safety coefficient.

The invention discloses a data processing method and system based on downhole engineering parameter evaluation, and relates to the technical field of oil and gas exploitation; comprising the steps of: using a near-drilling sensor to obtain real-time drilling pressure, rotational speed, torque, displacement, and drill bit vibration in different time periods characteristic parameters, and send them to the control center to process the parameters, store the processed parameters in the register and use the extreme value search algorithm to establish an evaluation model for evaluation and analysis, establish a historical data scatter diagram through the evaluation model and comprehensive drilling experience, and judge the underground work. and feed back to the downhole drill bit. The invention can establish an evaluation model to evaluate and analyze the downhole working conditions by reading parameters such as drilling pressure, rotational speed, torque, displacement and bit vibration in the drilling process in real time, overcomes the hysteresis of uphole evaluation and analysis, and improves drilling efficiency. The safety and drilling efficiency are improved, and the drilling cost is reduced.

The invention discloses a blowout preventer of a rod type defueling pump. The blowout preventer comprises a coat of which two ends are provided with external taper threads and internal taper threads respectively, and is characterized in that: a positioning sleeve is fixedly connected in the coat, and the lower end of the positioning sleeve is closed and the side wall of the positioning sleeve is provided with an oil inlet port; the upper end of the positioning sleeve is provided with a bayonet pin connecting hole on which a hook-shaped bayonet pin is assembled; a cylindrical blowout prevention sliding sleeve is assembled in the positioning sleeve; the outer peripheral face of the blowout prevention sliding sleeve is provided with a symmetrical curve sliding chute; a pin head of the hook-shaped bayonet pin is inserted in the curve sliding chute; a compression spring is assembled between the blowout prevention sliding sleeve and the positioning sleeve; the upper end of the blowout prevention sliding sleeve is provided with an internal tapered unidirectional claw and a piston connecting plug; and the lower end of the piston connecting plug is provided with an external tapered unidirectional claw matched with the unidirectional claw on the upper end of the blowout prevention sliding sleeve. The blowout preventer is applicable to various defueling pumps, has a simple structure and convenient operation, and realizes safe operation and good blowout prevention effect.

The invention provides an intelligent equipment self-adaptive communication method, which comprises the following steps of: (1) generating a switching communication instruction according to environment related data acquired by intelligent equipment, wherein the intelligent equipment comprises an intelligent equipment body, a data detection unit and remote control equipment; and (2) switching the communication mode of the intelligent equipment. The application range of the intelligent equipment can be expanded, it can be guaranteed that the intelligent equipment does not lose communication, andimmeasurable losses are reduced.