253 results about "Beam tube" patented technology

The invention relates to a method for continuously producing 1, 1, 1, 3-tetrachloropropane, which comprises the following steps: adopting a loop reactor in which a beam pipe is arranged in the reactor, mixing reaction raw materials ethylene and carbon tetrachloride at a Venturi nozzle at the lower part of the reactor through a gas circulation loop and a liquid circulation loop outside the reactor, and spraying into the reactor filled with a main catalyst. A cocatalyst and a chelating agent are added into a carbon tetrachloride raw material in advance, are pumped into a liquid loop by a feeding pump and then enter a reactor. Reaction raw materials are circularly stirred under the action of a beam pipe in the reactor, so that solid, liquid and gas phases are fully mixed. By adopting the method disclosed by the invention, the selectivity and the production efficiency of the 1, 1, 1, 3-tetrachloropropane can be greatly improved, and the method also has the advantages of simplicity in operation, environment friendliness, long service life of the catalyst and low cost.

The invention relates to the technical field of building engineering structures, in particular to an integral assembly type green building steel structure which comprises longitudinal beam mechanisms, cross beam sleeves, cross beam insertion pipes and storage pipes, the two ends of each cross beam sleeve are each connected with the end of the corresponding cross beam insertion pipe in an inserted mode, and the other end of each cross beam insertion pipe is connected with the corresponding longitudinal beam mechanism; the inner wall of the other end of the cross beam insertion pipe is connected with the end of a storage pipe, hydraulic oil is injected into the storage pipe, and the other end of the storage pipe is connected with the output end of the driving mechanism. Therefore, deformation of the cross beam sleeve and the cross beam insertion pipe is prevented, then it can be guaranteed that the longitudinal beam mechanism is free of structural deformation caused by the influence of temperature changes, the safety of the device during use is greatly improved, and the phenomenon that the structure in the device is permanently deformed due to the influence of the temperature changes can be prevented.

The invention discloses a coal dust influence suppression method for coal mine gas laser detection and a detection device, and the method comprises the steps: extracting gas in a coal mine goaf through a gas pump and a beam tube of the coal mine gas laser detection device, and detecting a characteristic absorption spectrum of the gas in the goaf by adopting a TDLAS technology; correcting a second harmonic signal and a peak value in the characteristic absorption spectrum by considering the attenuation influence of the coal dust in the goaf gas on the second harmonic signal of the laser penetrating through the goaf gas; and obtaining the accurate concentration value of each component gas in the goaf gas by using the corrected second harmonic signal peak value. According to the invention, the influence of coal dust on gas concentration detection can be greatly reduced, the sensitivity of gas detection is improved, and good detection effect and precision can be achieved.

An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including a beam tube for transmitting the ion beam, the beam tube having at least five adjoining sidewalls, at least one resonator coupled to the beam tube, and at least one turbomolecular pump coupled to the beam tube, wherein at least one of the at least five adjoining sidewalls of the beam tube has an opening formed therein for providing access to an interior of the beam tube.

The invention relates to the technical field of fault diagnosis of optical cables, in particular to a fault diagnosis system and method for a central beam tube type OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable, and the system comprises an error rate monitoring unit which is used for monitoring the error rate of the optical cable; the self-excitation unit is used for changing the transmission frequency of an optical signal in the optical cable; the optical signal attenuation monitoring unit is used for monitoring the optical signal attenuation of the optical cable; the central control unit is used for determining whether the communication quality of the optical cable meets the standard or not according to the first optical signal attenuation amount, determining the reason that the communication quality of the optical cable does not meet the standard based on the comparison result of the first optical signal attenuation amount and the second optical signal attenuation amount, and adjusting the parameters of the optical signal according to the reason, or adjusting the communication quality of the optical cable according to the parameter adjustment. And determining the optical fiber with the fault. The method can improve the diagnosis precision of the potential fault of the optical cable.

The invention provides an underwater running double-stator beam flow rim propeller structure which comprises a guide pipe, the interior of one end of the guide pipe is connected with a front propeller hub, a front propeller hub cap is installed at one end of a propeller shaft, a front deflection stator, a rim transmission device and a rear deflection stator are sequentially installed on the propeller shaft, and the front deflection stator is connected with the front deflection stator. The other end of the conduit is connected with the tail beam tube; the wheel flange transmission device comprises a wheel flange transmission ring, the wheel flange transmission ring is connected with a paddle, and the paddle is installed on the rotor inner shaft. The guide pipe is used as a connecting carrier of the stator, the rim and the beam tube, and the rim transmission device is used as a power source device of the propeller. The front torsion stator plays a role in enabling inflow of the rotor to generate prerotation, the rear torsion stator plays a role in adjusting the torsion angle of the blades according to the fluid speed so as to better absorb wake flow energy, and the beam barrel is used for restraining the wake flow and concentrating pressure at the tail of the propeller on beams in the same direction, so that the effect of improving the propelling efficiency is achieved.

The invention discloses a full-laser multi-path gas fire early warning and monitoring system and a fire early warning method, the fire early warning and monitoring system comprises a ground monitoring part and an underground monitoring part, and the ground monitoring part comprises a ground monitoring server host; the underground monitoring part comprises a gas monitoring module, a network switch, a sucking pump, a beam tube switching valve group and a plurality of sampling beam tubes, the gas inlet end of the sucking pump is communicated with an exhaust pipe of the beam tube switching valve group, and the exhaust end of the sucking pump is communicated with the gas monitoring module; the beam tube switching valve group comprises a plurality of switching valves in one-to-one correspondence with the sampling beam tubes, the air inlet end of each switching valve is communicated with the corresponding sampling beam tube, and the exhaust end of each switching valve is communicated with an exhaust pipe; a gas reversing valve is arranged on the exhaust pipe, a pressure sensor and a compressed gas source control valve communicated with the gas reversing valve are arranged on the gas reversing valve, and the compressed gas source control valve is communicated with a compressed gas tank.

The invention relates to an all-dielectric self-supporting aerial optical cable which comprises a cable core, an inner sheath, a non-metal reinforcing layer and an outer sheath which are sequentially arranged from inside to outside. The cable core comprises a plurality of micro beam tubes which are twisted into a whole; a rigid non-metal reinforcing piece is embedded in the inner sheath; the non-metal reinforcing layer is twisted on the periphery of the inner sheath; and the outer sheath is coated on the non-metal reinforcing layer. According to the optical cable provided by the invention, under the clamping of the fitting, the clamping force borne by the outer sheath can be directly conducted to the non-metal reinforcing layer between the inner sheath and the outer sheath, and then the non-metal reinforcing layer transmits the clamping force to the rigid non-metal reinforcing piece through the inner sheath, so that the effective transmission of the clamping force is realized; therefore, the rigid non-metal reinforcing member can fully play a tensile role, so that the optical cable provided by the embodiment of the invention can be applied to small-span and relatively mild meteorological conditions, and also can be applied to medium-and-long-span and extreme meteorological conditions.

An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including a beam tube for transmitting the ion beam, the beam tube having at least five adjoining sidewalls, at least one resonator coupled to the beam tube, and at least one turbomolecular pump coupled to the beam tube, wherein at least one of the at least five adjoining sidewalls of the beam tube has an opening formed therein for providing access to an interior of the beam tube.

The invention discloses a multi-beam laser cutting device integrated with a cooling injection system, the multi-beam laser cutting device comprises a processing table and a cutting mechanism, the cutting mechanism comprises an equipment box, a beam tube is arranged outside the equipment box, the beam tube is sleeved with a fixing sleeve, the outer surface of the fixing sleeve is fixedly connected with the outer surface of the equipment box, and the outer surface of the fixing sleeve is fixedly connected with the outer surface of the equipment box. The laser cutting device comprises a fixing sleeve, a fixing ring is fixedly connected to the interior of the fixing sleeve, the interior of the fixing ring is hollow, a water inlet pipe is communicated with the interior of the fixing ring in a penetrating mode, and a water spraying pipe is communicated with the interior of the fixing ring in a penetrating mode. The problems that local hardness is increased and toughness is reduced due to the fact that metal grains are prone to coarse oxidation and the like in a heat affected zone, meanwhile, material micro-deformation is caused by thermal expansion and shrinkage, slag and an oxide layer are prone to being attached, additional working procedures are needed for cleaning, and machining precision and machining efficiency become poor are solved.

The invention provides a particle accelerator beam pipeline support member design method and a support system, and relates to the technical field of particle accelerators, and the particle accelerator beam pipeline support member design method comprises the following steps: classifying devices on a beam transport line into interference source devices and sensitive devices based on the electromagnetic characteristics of the devices and the structural relationship between the devices and a beam pipeline; supporting pieces are independently configured for a beam pipeline and various devices, and specific electrical isolation, grounding and filtering measures are adopted for different device types: an interference source device is connected with an electrostatic protection ground and is added with a filter; sensitive equipment and a beam pipeline are electrically isolated and are connected with a signal ground. Through systematic supporting and grounding architecture design, a coupling path of electromagnetic interference is fundamentally cut off, electromagnetic noise on a beam pipeline is remarkably reduced, a clean reference ground is provided for beam diagnosis and other weak signal systems, and high-reliability and high-precision operation of an accelerator is guaranteed.

The utility model relates to the technical field of vibrating bars, and discloses a concrete construction vibrating bar which comprises a movable base, a winding wheel is fixedly installed in the middle of the top face of the movable base, a beam tube mechanism is fixedly installed on one side of the surface of the winding wheel, and a fixing plate is fixedly installed on the top face of the winding wheel. A hydraulic rod is fixedly installed in the middle of the top face of the fixing plate, grooves are formed in the two sides of the top face of the fixing plate, fixing rods are fixedly arranged in the grooves, the two sides of the fixing rods are symmetrically sleeved with damping mechanisms, and the tops of the damping mechanisms are rotationally connected with connecting blocks. According to the construction vibrating bar for concrete, through the arrangement of the damping mechanism, when the vibrating motor operates to generate vibration, the damping rod is pressed to rotate, the damping spring is extruded to deform, and the hydraulic rod stretches and retracts along with the damping rod, so that the damping effect on the vibrating motor is achieved, and the situation that the service life of the vibrating motor is affected due to long-time vibration is avoided.

A superconducting cavity beam HOM pipe welding piece welding tool comprises a tool body, a tool pressing plate, a beam pipe positioning assembly and a pull rod. The tool body is in an L shape, the tool pressing plate is vertically arranged along one side of the tool body, so that the tool pressing plate and the tool body form a U-shaped structure, the beam pipe positioning assembly is vertically installed on the tool body and used for fixing a beam pipe welding part to the tool body in the arrangement direction of the tool pressing plate, and the pull rod is installed between the tool pressing plate and the tool body. And the tool pressing plate can enable the welding part of the HOM pipe welding part and the welding part of the beam pipe welding part to abut against each other. The invention further provides a welding method for the superconducting cavity beam HOM pipe welding part. In the welding process, the welding part of the HOM pipe welding part and the welding part of the beam pipe welding part can be effectively positioned, the welding precision is guaranteed, and the welding efficiency is improved.

The invention relates to an adjustable bracket for mounting automobile wire harnesses, which is applied to the field of brackets, the bracket is provided with a plurality of pairs of lower beam tubes and upper beam tubes to separate and fix the wire harnesses, so that the wire harnesses are effectively prevented from being damaged due to mutual friction, and the wire harnesses or wire harness joints are fixed by utilizing the wrapping property of a wire covering film; the wire covering film can be adaptively adjusted, so that wire harnesses and wire harness connectors of different specifications are fixed, the adaptability is higher, heat of the wire harnesses and the wire harness connectors is absorbed by arranging heat absorption structures in the lower beam tube and the upper beam tube, the heat is transmitted into the fixing support for heat dissipation, and the heat absorption effect is better. The wire harnesses and the wire harness joints are effectively prevented from melting in a high-temperature environment to affect the safety of an automobile, and self-adaptive heat dissipation adjustment can be carried out according to the temperature of each group of wire harnesses or each wire harness joint, so that the heat dissipation effect is effectively improved.

The steering axle frame of the low-speed unmanned logistics vehicle comprises a front beam pipe, a steering frame, a connecting sleeve and the like, the connecting pipe is provided with a connecting section and a limiting section, the connecting section is inserted into the front beam pipe, and the limiting section abuts against the end of the front beam pipe; one end of the connecting joint is arranged on the connecting sleeve, and the other end is movably inserted into a steering groove of the bogie; the connecting rotating shaft is arranged on the connecting joint and is rotationally connected with the bogie; the positioning lock pin is arranged on the connecting joint and is inserted into the locking groove of the connecting rotating shaft so as to lock the connecting rotating shaft and the connecting joint; and the gasket is arranged between the connecting joint and the bogie so as to lock the axial position of the connecting joint. According to the steering axle frame, the connecting strength between the connecting joint and the front beam pipe is improved by additionally arranging the connecting sleeve, so that the connecting joint and the front beam pipe are not prone to breakage; axial positioning of the connecting rotating shaft is achieved through the positioning lock pin and the gasket, axial movement is avoided, and noise generated by axial movement is eliminated.

The utility model relates to an indoor composite optical cable based on a micro-beam tube structure, which comprises an outer sheath, an inner sheath, a central reinforcing member, a plurality of micro-beam tube units distributed along the circumferential direction, a waterproof layer and a filling structure, the outer sheath wraps the outermost layer of the optical cable, and the inner side of the outer sheath is provided with a spirally wound nonmetal tensile belt. The inner sheath is coaxially nested in the outer sheath, an annular gap is formed between the inner sheath and the outer sheath, two non-metal reinforcing members are symmetrically embedded in the annular gap and are located at the axis position of the optical cable, and the micro beam tube unit comprises a plurality of optical fibers and a microporous polyester belt wrapping the optical fibers. The micro beam tube units are spirally twisted and arranged by taking the central reinforcing piece as a circle center, the central reinforcing piece is located at the axis position of the optical cable and provides stable support for the whole optical cable, and the micro beam tube units are spirally twisted and arranged by taking the central reinforcing piece as the circle center, so that the optical cable is endowed with good flexibility and bending resistance.

The goaf monitoring system comprises a detection pipeline, the detection pipeline comprises a protection net sleeve, a first beam tube, a second beam tube and a third beam tube, the protection net sleeve is arranged on the side wall of an air return roadway, a protection channel is formed in the protection net sleeve, and the first beam tube, the second beam tube and the third beam tube are arranged in the protection channel respectively; the first end of the first beam tube is located in a suffocation zone of the goaf, the first end of the second beam tube is located in an oxidation heating zone of the goaf, and the first end of the third beam tube is located in a heat dissipation zone of the goaf. According to the goaf monitoring system disclosed by the invention, stable protection can be realized by utilizing the protective net sleeve, so that the first beam tube, the second beam tube and the third beam tube are prevented from being damaged or even damaged due to collapse of the goaf, meanwhile, the gas monitoring cost of the goaf is effectively reduced, and the gas monitoring efficiency of the goaf is improved.

The utility model relates to the technical field of optical cable auxiliary alignment equipment, in particular to center beam tube optical cable core alignment equipment which comprises a bottom plate, a supporting plate fixedly installed on the upper surface of the bottom plate, an arc-shaped sleeve fixedly installed on the upper surface of the supporting plate, and a supporting frame fixedly installed on the arc-shaped sleeve. A first electric push rod is fixedly installed on a top plate body of the supporting frame, a lower pressing disc is fixedly installed at the tail end of a telescopic shaft of the first electric push rod, an adjusting assembly is further arranged on the bottom plate and comprises a second electric push rod fixedly installed on the bottom plate, and a guide rail is fixedly installed at the tail end of a telescopic shaft of the second electric push rod. A servo motor is fixedly installed at the end of the guide rail, a forward lead screw is fixedly installed at the tail end of an output shaft of the servo motor, a reverse lead screw is fixedly installed at the tail end of the forward lead screw, sliding blocks are connected to the forward lead screw and the reverse lead screw in a threaded mode, and clamping blocks are fixedly installed at the top ends of the sliding blocks. The device facilitates alignment operation and is convenient to use.

The electric vehicle frame comprises a front beam pipe, an upper supporting pipe, a rear beam pipe and a connecting frame, one end of the front beam pipe is connected to the connecting frame, the other end of the front beam pipe extends in the direction away from the connecting frame, a mounting opening extending right ahead is formed in the end, away from the connecting frame, of the front beam pipe, and the upper supporting pipe is connected with the rear beam pipe. The front beam tube is provided with a front illuminating lamp at the mounting port, and a fixing assembly for fixing the front illuminating lamp is mounted on the front beam tube; a pair of rear beam pipes is arranged, and one end of each rear beam pipe is connected to the connecting frame; and one end of the upper branch pipe is mounted on the connecting frame. The front lighting lamp has the effect of improving the irradiation range of the front lighting lamp.

The utility model relates to a bicycle frame welding production line. Comprising a first welding station, a second welding station, a third welding station and a correcting station which are sequentially arranged, wherein the first welding station is used for completing welding of a front beam pipe assembly; the second welding station is used for completing welding of a whole frame and a front welding bead of the frame; the third welding station is used for completing welding of a back welding bead of the frame; the first welding station, the second welding station, the third welding station and the correcting station are sequentially arranged, welding of the whole bicycle frame can be completed only through four procedures, namely, the three welding procedures and the one correcting procedure, the machining procedures can be simplified, the length of a production line can be reduced, then the production cost is reduced, and the production efficiency is improved.

The utility model discloses a pipeline vibration reduction structure for heat exchange equipment and the heat exchange equipment, and relates to the technical field of heat exchange equipment, the pipeline vibration reduction structure for the heat exchange equipment comprises a vibration reduction disc and a limiting belt, the vibration reduction disc is provided with at least two beam tube grooves, and the periphery of the vibration reduction disc is provided with a clamping groove; the limiting belt is connected to the vibration reduction disc, clamped in the clamping groove and used for blocking a groove opening of the beam tube groove. According to the technical scheme, the at least two beam tube grooves are formed in the vibration reduction disc of the pipeline vibration reduction structure for the heat exchange equipment, the heat exchange equipment inner pipeline with the high amplitude and the heat exchange equipment inner pipeline with the low amplitude are limited in the at least two beam tube grooves together, and the notches of the beam tube grooves are blocked through the limiting belts. The pipeline in the heat exchange equipment can be stably fixed and is not prone to loosening or displacement, the mode is easy and convenient to install, the cost is low when the pipeline is applied to the heat exchange equipment, and the time consumed for installation is short.

The invention relates to the technical field of superconducting accelerators, in particular to a solid conduction cooling structure for a superconducting radio frequency cavity. Comprising a double-cell superconducting cavity body, an equator cold ring, a beam tube cold ring and a thermal bridge structure, and through the ingenious design of the equator cold ring, the beam tube cold ring and the thermal bridge structure and the adoption of oxygen-free copper and other materials with good heat conduction performance and mechanical strength, the efficient and uniform cooling effect is achieved, and the service life of the double-cell superconducting cavity is prolonged. Powerful support is provided for miniaturization and industrial application of the radio frequency superconducting technology; according to the invention, stable operation of the superconducting cavity at a proper low temperature can be realized by adopting a commercial refrigerator, a complex thermostat design, an expensive and huge helium liquefaction low-temperature station and a specialized low-temperature station operation and maintenance team are omitted, and the application difficulty of a radio frequency superconducting technology is reduced; the method has natural advantages in miniaturization and industrial application of the radio frequency superconducting technology.

The conveying and feeding device for soft yolk egg processing and production comprises a vacuum air pump, a hose and an egg sucker, the hose is borne on a beam tube barrel, the bottom of the beam tube barrel is fixedly connected with a supporting column, the bottom of the supporting column is fixedly connected with a carrying base, a plurality of bag grooves are formed in the upper surface of the carrying base, and a tube groove is formed between every two adjacent bag grooves; liquid bags are arranged in the bag grooves, liquid pipes are arranged in the pipe grooves, the adjacent liquid bags are communicated through the liquid pipes, trays are bonded to the upper surfaces of the liquid bags, a plurality of guide grooves are formed in the inner wall of the outer side of the pipe bundling barrel, a pipe containing plate is slidably connected into the guide grooves, and a pipe penetrating plate with a penetrating opening is fixedly connected to the bottom of the pipe containing plate. And the surface and the side face of the pipe containing plate are each connected with a plurality of pipe grabbing pieces in a magnetic attraction mode, by means of the structure, the hoses stacked on the ground are sequentially limited, the bent positions are prevented from being broken, the hose butt joint precision and the connection sealing performance are greatly improved, and the high adsorption egg taking efficiency and effect are guaranteed.

The application discloses a kind of based on heat trigger solid-liquid reaction's goaf spontaneous combustion initiative inerting device and method, belong to coal mine fire prevention technical field, first based on experimental data, goaf beam tube monitoring and numerical simulation determine goaf high temperature prevention area, under the influence of setting safety margin and considering the maximum thickness of residual coal determine the starting temperature of adaptive inerting device, then according to goaf residual coal thickness, porosity, oxygen concentration field and high temperature prevention area area calculate out initiative inerting device size and reagent filling amount, finally combine the effective coverage area of single device and honeycomb grid generation algorithm, design initiative inerting device dynamic pre-buried point, and pre-bury initiative inerting device in coal mining face, when device reaches the high temperature protection area of goaf deep, temperature sensing guide column paraffin melt, aluminum sulfate solution in liquid reagent storage tank flows into solid reaction bin and sodium bicarbonate reaction along guide column, generate a large amount of CO2 from exhaust port, rapidly reduce local oxygen concentration, eliminate goaf spontaneous combustion hazard.The core innovation of the application is to abandon the traditional passive prevention mode relying on gas diffusion, and instead adopt the initiative control mechanism of "temperature sensing trigger-in-situ reaction-directional release", so that CO2 directly acts on the high temperature area through the directional exhaust port, rapidly reduces the local oxygen concentration, cuts off the necessary condition of coal spontaneous combustion from the source, realizes the initiative identification and accurate inerting of goaf high temperature area, and ensures the safety production of coal mining face.

The utility model discloses a mine return air corner gas monitoring device which comprises a main machine body, the main machine body is connected with a beam tube, one end, deviating from the main machine body, of the beam tube is provided with a gas inlet tube, the beam tube is provided with a separation assembly, and the separation assembly comprises a box body, a gas conveying cylinder, a vertical rod and a plurality of groups of mutually parallel inclined blades. The gas conveying cylinder is fixedly arranged in the box body, an opening is formed in the upper end of the gas conveying cylinder, the vertical rod is located in the gas conveying cylinder and rotationally connected with the box body, each set of inclined blades are fixedly connected with the vertical rod, the gas inlet pipe sequentially penetrates through the box body and the gas conveying cylinder, the gas inlet pipe corresponds to the inclined blade at the lowest end, and the upper end of the box body is communicated with the beam pipe. One-way valves are arranged at the joints of the beam tube, the air inlet tube and the box body. The air return corner monitoring device has the effects of smoothly collecting air at the air return corner and guaranteeing normal monitoring of the air.

The utility model discloses a cutting head closed light path telescopic air pressure balancing device which comprises an upper light beam barrel, a bidirectional vacuum filter is installed on the outer side of the upper light beam barrel, an upper protective mirror is installed on the top of the upper light beam barrel, a collimating mirror is arranged at the bottom of the upper protective mirror, and a middle light beam barrel is fixedly arranged at the bottom of the upper light beam barrel. A lower light beam barrel is fixedly installed at the end of the middle light beam barrel, a lead screw integrated motor is arranged on the outer side of the lower light beam barrel, a protection lens base is arranged on one side of the lead screw integrated motor, and a focus lens and a lower protection lens are installed in the protection lens base. According to the cutting head closed light path telescopic air pressure balancing device, the protective lens base is made to move up and down through the lead screw integrated motor, a sealing ring is installed on a focusing lens barrel on the upper portion of the protective lens base, and the light path sealing performance is guaranteed; the up-and-down moving resistance of the front end is reduced through the bidirectional vacuum filter, and the responsivity of the follow-up shaft is improved; and the cutting nozzle is prevented from colliding with the plate.

The MPP cable protection sleeve comprises a protection sleeve I and a beam tube sleeve, insertion holes are formed in the surfaces of the left side and the right side of the upper end of the protection sleeve I, a protection sleeve II is arranged above the protection sleeve I, and insertion rods are fixed to the bottom surfaces of the left side and the right side of the protection sleeve II; the beam tube sleeve is arranged on the outer side of the first protective sleeve and the outer side of the second protective sleeve, a connecting hole is formed in the surface of the beam tube sleeve, and a drawing rope is arranged in the connecting hole in a penetrating mode. According to the MPP cable protection sleeve convenient to install the pipe connecting sleeve, the first protection sleeve and the second protection sleeve can be connected to form a circle through clamping connection between the insertion rod and the insertion hole, so that an MPP cable can be wrapped, meanwhile, rubber pads are arranged on the inner walls of the first protection sleeve and the second protection sleeve, the first protection sleeve and the second protection sleeve are prevented from directly making contact with the MPP cable, and the service life of the MPP cable is prolonged. And the rubber pad has certain softness and elasticity, so that the MPP cable can be buffered and protected, and the surface of the MPP cable is prevented from being abraded.

The invention discloses a system and a method for judging a fault point of a coal mine beam tube sampling pipeline, which belong to the technical field of coal mine beam tube monitoring and comprise a gas sampling pipeline parameter acquisition module, a fault type identification module, a fault point judgment module and a remote control module, the gas sampling pipeline parameter acquisition module, the fault type identification module, the fault point identification module and the remote control module are connected in sequence; the gas sampling pipeline parameter acquisition module is used for acquiring and storing related information of a gas sampling pipeline in real time, and can query and call the related information in real time; the fault type identification module is used for carrying out numerical simulation on various parameter information acquired by the gas sampling pipeline parameter acquisition module and judging the fault type of the gas sampling pipeline; the fault point identification module is used for determining the position range of a fault point of the gas sampling pipeline; and the remote control module is used for remotely controlling the opening and closing of the electromagnetic valves at the two ends of each section of gas sampling pipeline.

The utility model provides a production cutting device for a central beam tube type OPGW optical cable, and belongs to the technical field of optical cable processing. Comprising a bottom plate, a discharging opening formed in the side wall of the bottom plate, a material guiding plate fixedly installed on the inner wall of the discharging opening, a vertical plate fixedly connected to the side wall of the bottom plate, a limiting hole formed in the surface of the bottom plate, a motor frame fixedly installed on the side wall of the vertical plate and a material receiving assembly arranged at the bottom of the bottom plate. Through cooperative use of the driving assembly and the auxiliary assembly, the optical cable cutting and stripping integrated operation is realized, the processing efficiency is greatly improved, the driving assembly adopts a high-precision servo motor to be matched with a rotating disc, the rotating speed of a cutting head can be accurately controlled according to actual processing requirements, the accuracy of the cutting length is ensured, and the production efficiency is improved. The auxiliary assembly can automatically adapt to optical cables with different diameters through spring buffering and arrangement of a movable wire seat, stable clamping force is provided in the cutting process, and the optical cables are prevented from slipping or deviating.

The invention discloses an indoor micro-beam tube type optical cable, which comprises a micro-beam tube, aramid yarn, a tearing rope and an outer sheath, and is characterized in that the outer sheath is arranged outside the micro-beam tube and the tearing rope, and the outer sheath is made of a low-smoke halogen-free material with an oxygen index greater than or equal to 40%; the micro beam tube comprises an optical fiber, a filling layer and an inner sheath, the inner sheath is arranged on the outer side of the optical fiber, and the filling layer is filled between the optical fiber and the inner sheath. The invention provides a dynamic adaptation strategy of a filling layer material and an inner layer sheath material, the provided indoor micro beam tube type optical cable can guarantee the structural integrity of the sheath, gives consideration to protection performance and construction operability, solves the contradiction that the inner layer sheath of a traditional optical cable is insufficient in protection or too hard to operate, can block moisture intrusion in a humid environment, and also can prevent the inner layer sheath from being damaged. And external force impact can be buffered through the filling layer, so that stable operation of the optical cable under extreme weather conditions such as high temperature and cold and complex scenes such as industrial oil contamination and high humidity can be ensured.