30results about How to "Safe laying" patented technology

The invention discloses a fast strengthening method for ultra-soft earth, comprising the following steps: (1) arranging the separation curtains to divide a plurality of construction areas in the area of waiting for strengthening; pouring water at the field; using the device of artificial inserting plate to insert and arrange the short plastic drainage plate; arranging the horizontal drainage pipeline and then paving a layer of sealing film on the pipeline; forming the strengthening device for shallow layer of ultra-soft earth through the vacuum pumping equipment connected with the pipeline; (2) vacuuming the strengthening device for shallow layer of ultra-soft earth; (3) integrally strengthening the foundation of the device. The fast strengthening method for ultra-soft earth has the advantages that the method can rapidly and effectively solve the problem of strengthening the ultra-soft foundation on the shallow layer, so as to supply the favorable conditions for the construction, such as drainage sand cushion, plastic drainage board or bag sand-well, and supply an advanced art used for strengthening rapidly the foundation on silt or ultra-soft foundation on the filled silt with saving costs greatly.

The invention discloses a magnetic levitation long stator coil laying vehicle system. The system comprises: a first vehicle, wherein a cable reel is arranged on the vehicle body of the first vehicle; a second vehicle, wherein cable bending equipment is assembled on the vehicle body of the second vehicle and used for bending and forming the cable conveyed by the cable reel of the first vehicle into a long stator coil; and a third vehicle, wherein external hanging operation platforms for receiving the long stator coils conveyed by the second vehicle are arranged on the two sides of the vehicle body of the third vehicle. The installation efficiency of the long stator coil can be improved, the labor cost is reduced, and deformation is not likely to be caused.

The invention discloses a main pipe construction method for establishing the tunnel formation, comprising following steps: pushing down a leading pipe and an initial main pipe underground; preventing landslide; conveying the next main pipe whose outer diameter is far smaller than the initial pipe to the inside of the main pipe setting space; expanding the diameter of the next main pipe to make it the same as the diameter of the initial main pipe; connecting the next main pipe after expansion treatment with the front end of the initial main pipe; repeating the connection operation of the next main pipe for establishing the tunnel formation. The technique scheme is able to construct in a direct or curve way, swift, safe and simple.

The invention discloses a power cable paying-off support. The power cable paying-off support comprises a base disc, a rotating shaft is arranged at the center of the base disc, a rotating disc frame is arranged on the base disc, supporting rollers are arranged on the bottom face of the outer ring of the rotating disc frame, an electric brake is arranged between the rotating disc frame and the base disc; the electric brake is arranged on the rotating shaft, a lower disc of the electric brake is fixed to the base disc, an upper disc of the electric brake is fixed to the rotating disc frame, and a mouse cage frame is arranged on the upper end face of the rotating disc frame. The paying-off support saves installation persons by more than 70 percent, saves time and labor and is safe and rapid.

The invention discloses a screw structure assembled auxiliary probe for paving a cable in a high voltage cable trench. The auxiliary probe comprises a probe body. An optical lens is arranged in the head of the probe body. A CCD camera is arranged in the middle of the probe body. The CCD camera is connected to the optical lens. The middle of the probe body is provided with a wireless receiver and ahot spot generator. The wireless receiver and the hot spot generator are connected to an external platform to carry out information exchange. The middle of the probe body is provided with a lithium battery. The tail of the probe body is connected to a probe rod. A spring switch device is arranged in the tail of the probe body. The probe rod contacts with the spring switch device. The external side of the probe rod is fixedly connected to a cable. The external side of the probe rod is provided with a guiding support device. The structural design is reasonable, the practicality is strong, whena cable is paved in a high voltage cable trench, the provided auxiliary probe can smoothly fix the cable to the probe rod, the frequency of opening a cable cover plate is reduced effectively, and thecable pavement becomes more convenient.

The invention discloses a composite material skin and a preparation method thereof; the composite material skin includes an upper fiber reinforced layer, a heatable polyimide thin film and a lower fiber reinforced layer; the upper fiber reinforced layer and the lower fiber reinforced layer are adhered to the upper surface and the lower surface of the heatable polyimide thin film respectively. The composite material skin provided by the invention has the advantages of light weight, uniform heat generation, high heat generation efficiency, adoption of human safe voltage for heating, safety, reliability and the like; at the same time, the composite material skin can be conveniently laid on conventional interior trim parts, and meets the heating function of the interior trim parts without affecting a conventional spatial layout. A solution can be provided for lightweighting of advanced passenger cars, saloon cars, high-speed railways and various rail transit vehicles, and at the same time, the space of an air conditioner hot air system is saved.

The invention discloses a screw structure assembled auxiliary probe for paving a cable in a high voltage cable trench. The auxiliary probe comprises a probe body. An optical lens is arranged in the head of the probe body. A CCD camera is arranged in the middle of the probe body. The CCD camera is connected to the optical lens. The middle of the probe body is provided with a wireless receiver and ahot spot generator. The wireless receiver and the hot spot generator are connected to an external platform to carry out information exchange. The middle of the probe body is provided with a lithium battery. The tail of the probe body is connected to a probe rod. A spring switch device is arranged in the tail of the probe body. The probe rod contacts with the spring switch device. The external side of the probe rod is fixedly connected to a cable. The external side of the probe rod is provided with a guiding support device. The structural design is reasonable, the practicality is strong, whena cable is paved in a high voltage cable trench, the provided auxiliary probe can smoothly fix the cable to the probe rod, the frequency of opening a cable cover plate is reduced effectively, and thecable pavement becomes more convenient.

The invention provides a fiber grating sensor calibration device based on liquid nitrogen conduction cooling, and belongs to the technical field of sensor calibration devices. A liquid storage barrelcover is arranged at the top of a liquid storage barrel, a heat insulation device is arranged at the bottom of the liquid storage barrel, and a temperature regulating barrel is arranged above the heatinsulation device; an isolating tube is arranged in the temperature regulating barrel, and the lower end of the isolating tube penetrates through the bottom of the temperature regulating barrel and communicates with the insulating device; a fixing rod penetrates through the isolating tube and is movably inserted into the heat insulation device; a fiber grating sensor and a temperature reference sensor are arranged in the fixing rod; and a first pipeline and a second pipeline are arranged on the liquid storage barrel cover, and liquid nitrogen is added into the liquid storage barrel and the temperature regulating barrel respectively. The fiber grating sensor is calibrated in a liquid nitrogen conduction refrigeration mode, and the calibration of the fiber grating sensor in the temperaturerange of 77 to 293 K is realized; and the fiber grating sensor and the temperature reference sensor can be conveniently and safely laid into a temperature change device, the leakage heat is reduced through isolation, and the temperature of the sensor is easier to reach 77 K.

The invention provides an indoor ceramic tile laying device and belongs to the field of living furniture. Specifically, the indoor ceramic tile laying device is composed of a rotary laying wheel, ceramic tile tight-suction assemblies, a ceramic tile transferring assembly and a height adjusting air cylinder. The indoor ceramic tile laying device is characterized in that each ceramic tile tight-suction assembly is composed of a first ceramic tile suction cup, a second ceramic tile suction cup, a third ceramic tile suction cup, a suction cup installing plate and a suction cup air cylinder, the suction cup air cylinders are installed on one sides of the suction cup installing plates, the first ceramic tile suction cups, the second ceramic tile suction cups and the third ceramic tile suction cups are installed on the other sides of the suction cup installing plates, and each first ceramic tile suction cup, the corresponding second ceramic tile suction cup and the corresponding third ceramic tile suction cup are installed in a regular triangle shape. The indoor ceramic tile laying device has the beneficial effect that ceramic tiles can be laid efficiently, quickly and safely.

The invention discloses a translation traction construction method for a PC narrow and high track beam on a cast-in-place beam, which is characterized by comprising the following steps: S1, translation track installation: paving a leveling cushion block on the cast-in-place beam, and then paving two translation tracks penetrating through the cast-in-place beam on the leveling cushion block; S2, constructing a translation traction mechanism; S3, hoisting and fixing the track beam, specifically, the track beam is hoisted to the position between the two vertical supporting beams on the transverse supporting beam from the side span side face of the cast-in-place beam, and arranging buffering and reinforcing cushion blocks additionally between the vertical supporting beams and the track beam; and S4, performing track beam translation traction. According to the translation traction construction method for the PC narrow and high track beam on the cast-in-place beam, the technical problem that when the PC narrow and high track beam is erected on a cast-in-place pier column in the middle of a bridge and the cast-in-place beam, a crane and a beam transporting vehicle cannot be driven to the bridge to hoist the track beam in consideration of bridge bearing is solved.

The invention discloses a combined roofing system of metal tiles and metal eave rafters. The combined roofing system comprises a metal pressing beam (1), the metal tiles (2), rafters (3), purlines (4), a waterproof board (5), a profiled steel plate (6), a supporting framework (7) and an eave rafter metal plate (8) which are arranged on a main body structure (10); embedded parts (9) are embedded inthe main body structure, the supporting framework is installed on the main body structure through the embedded parts, an upper inclined framework (72) is equipped with an adapter (74), the profiled steel plate is installed on the upper inclined framework through the adapter, the waterproof plate is installed on the profiled steel plate and a lower inclined framework; the purlines are connected with the adapter, the rafters are installed on the purlines, the metal tiles are installed on the rafters, and the metal pressing beam is installed on the top part of the supporting framework and connected with the metal pressing beam in a sealing manner; and the eave rafter metal plate is installed on the lower inclined framework. According to the combined roofing system of the metal tiles and themetal eave rafters, the fact that the whole roofing system has better stability and leakproofness can be ensured, the roofing weight can be reduced, and the hidden dangers of deformation of the waterproof board or falling off of the waterproof board and the adapter due to typhoon weather can be eliminated.

The invention provides an electric distribution box, relating to the technical field of pipelines and lines laying. The electric distribution box comprises a box body and a box cover arranged on the upper end of the box body, wherein the interior of the box body is longitudinally provided with a distributing plate, the distributing plate divides the inner space of the box body into an electric circuit part and a gas circuit part, and two ends of the side edge of the box body are provided with connecting holes. The electric distribution box provided by the invention has a simple structure, is convenient to install and can lay the electric circuit and the gas circuit in a workshop in the box without being naked outside, thus the electric circuit and the gas circuit can be laid more securely in a more standardized mode, the customizing management of the workshop production field can be enhanced, safety production can be ensured, ordered production order can be created and employee benefits can be guaranteed.

The invention relates to a center-beam-tube full-dry-type indoor and outdoor universal cable which includes first dry-type water resistance parts, second dry-type water resistance parts and an outer sheath. The outer sheath is circular and the circle center is the circle center of the outer sheath. The outer sheath wraps an inner sheath and a water resistance layer I is arranged between the outer sheath and the inner sheath. The inner sheath wraps a center bushing. The plurality of dry-type water resistance parts are uniformly laid on the inner wall of the center bushing and the second dry-type water resistance parts are uniformly distributed around the circle center of the outer sheath. A plurality of optical fibers are uniformly arranged at the periphery of the second dry-type water resistance parts and the optical fibers and the first dry-type water resistance parts are arranged to surround the circle center of the outer sheath. A water resistance layer II is also arranged between the inner sheath and the center bushing. A cable opening rope is arranged in the outer sheath. The first dry-type water resistance parts and the second dry-type water resistance parts are made of a rapid expansion yarn and capable of absorbing effectively water and stopping the water from penetration and expansion so that the cable reaches a full-dry state and signal attenuation brought by the optical fibers because of environment factors such as temperature and humidity and the like is reduced.

The invention discloses a translational traction construction method of PC narrow and high track beams on cast-in-place beams, which is characterized in that it comprises the following steps: S1, translational track installation: laying leveling pads on the cast-in-place beams, and then leveling pads Lay two translational tracks through the cast-in-place beam; S2, construction of the translational traction mechanism; S3, hoisting and fixing of the track beam: hoist the track beam from the side span side of the cast-in-place beam to the two vertical support beams on the horizontal support beam between, and plug the buffer reinforcement pad between the vertical support beam and the track beam; S4, track beam translational traction. The translational traction construction method of the PC narrow and high track beam on the cast-in-place girder of the present invention solves the problem that when the PC narrow and high track beam is erected on the cast-in-place pier column in the middle of the bridge and the cast-in-place beam, the crane and the beam transporter cannot be moved due to the load bearing of the bridge. The technical problem of driving to the bridge for hoisting of track beams.

The invention provides a fiber grating sensor calibration device based on liquid nitrogen conduction cooling, which belongs to the technical field of sensor calibration devices. Including that the top of the liquid storage tank is provided with a liquid storage tank cover, the heat insulation device is arranged at the bottom of the liquid storage tank, and the temperature adjustment tank is arranged above the heat insulation device; the temperature control tank is provided with an isolation tube, and the lower end of the isolation tube runs through the temperature control tank The bottom of the tank is connected to the heat insulation device; the fixed rod runs through the isolation tube and can be inserted into the heat insulation device movably; the fiber grating sensor and the temperature reference sensor are arranged in the fixed rod; the first pipe and the second pipe are arranged on the lid of the liquid storage tank , add liquid nitrogen to the liquid storage barrel and the temperature regulating barrel respectively. The present invention calibrates the optical fiber grating sensor through liquid nitrogen conduction refrigeration, and realizes the calibration of the optical fiber grating sensor in the temperature range of 77-293K; it can conveniently and safely lay the optical fiber grating sensor and the temperature reference sensor into the temperature-changing device, through Isolation reduces heat leakage and makes it easier for the sensor's temperature to reach 77K.

The invention discloses a three-workstation type J-type laying system, comprising: a J-type tower, a pipeline conveying device, a pipeline laying device and an angle adjustment assembly, the J-type tower is rotatably connected with the hull deck, and the pipeline conveying device is used for laying the pipe section Move from the deck to the inside of the J-shaped tower. The pipeline conveying device includes a horizontal conveying assembly and a vertical upper pipe assembly. The horizontal conveying assembly is laid on the deck. The pipeline elevator, rotating arm and vertical pipe wheel; the pipeline laying device is arranged on the J-shaped tower; the two ends of the angle adjustment component are respectively hinged with the J-shaped tower and the deck to adjust the angle of the J-shaped tower. The J-shaped laying system of the present invention arranges three workstations to realize simultaneous welding, non-destructive testing and coating operations of three-section and two-node pipes, greatly improving the laying efficiency, and repairing welding of unqualified parts in time after the completion of non-destructive monitoring. Simplify the laying process and reduce the laying cost.

The invention discloses a laying method of a glass fiber reinforced flexible pipe. The laying method is applied to a pipe laying ship, wherein the pipe laying ship comprises a roller, a tensioner, balancing weight mounting equipment and a stinger. The method comprises the following steps: transporting the glass fiber reinforced flexible pipe to the pipe laying ship and winding on the roller; locating the pipe laying ship on a target position, and adjusting the stinger; moving the pipe laying ship; pulling the glass fiber reinforced flexible pipe from the roller to the tensioner; pulling the glass fiber reinforced flexible pipe passing through the tensioner to the balancing weight mounting equipment, and mounting a balancing weight; enabling the glass fiber reinforced flexible pipe equippedwith the balancing weight to pass through the stinger; laying the glass fiber reinforced flexible pipe with the balancing weight down to seabed. By adopting the balancing weight on the glass fiber reinforced flexible pipe, the floatation and instability during mounting and in-place arrangement are avoided; with the stinger and the horizontal tensioner, the tension of the glass fiber reinforced flexible pipe is reduced, and the laying safety is improved.

The invention discloses a large-section EPR insulated direct-current flexible cable for wind power and a production process thereof. The large-section EPR insulated direct-current flexible cable for wind power sequentially comprises a central wire core, a main conductor, a main insulating layer and an outer sheath from inside to outside, wherein the central wire core sequentially comprises a central insulating filling strip, central conductors, a central wrapping tape and a central insulating layer from inside to outside; the main conductor comprises a plurality of branch conductors which arestranded and wrapped outside the central wire core, a semi-conductive belt wrapped outside the branch conductors and semi-conductive filling strips filled in external gaps of the adjacent branch conductors. According to the invention, a plurality of branch conductors are stranded and wrapped outside the central wire core, thereby not only ensuring a large sectional area of the cable, but also reducing the number of the conductors. The arrangement of the central wire core balances the electric field, so that the overall current-carrying capacity is large, and the safety is high.

The invention discloses a combined roofing system of metal tiles and metal eave rafters. The combined roofing system comprises a metal pressing beam (1), the metal tiles (2), rafters (3), purlines (4), a waterproof board (5), a profiled steel plate (6), a supporting framework (7) and an eave rafter metal plate (8) which are arranged on a main body structure (10); embedded parts (9) are embedded inthe main body structure, the supporting framework is installed on the main body structure through the embedded parts, an upper inclined framework (72) is equipped with an adapter (74), the profiled steel plate is installed on the upper inclined framework through the adapter, the waterproof plate is installed on the profiled steel plate and a lower inclined framework; the purlines are connected with the adapter, the rafters are installed on the purlines, the metal tiles are installed on the rafters, and the metal pressing beam is installed on the top part of the supporting framework and connected with the metal pressing beam in a sealing manner; and the eave rafter metal plate is installed on the lower inclined framework. According to the combined roofing system of the metal tiles and themetal eave rafters, the fact that the whole roofing system has better stability and leakproofness can be ensured, the roofing weight can be reduced, and the hidden dangers of deformation of the waterproof board or falling off of the waterproof board and the adapter due to typhoon weather can be eliminated.

The invention relates to a floor tile. The floor tile is characterized in that through holes which are used for paving electric cables or optical cables are formed in four sides of the floor tile; during use, the needed through hole angles are selected according to the direction the electric cables or optical cables passing through the current floor tile; after pavement of the floor tiles, the floor tiles are arranged and the through holes are communicated to ensure that the electric cables or optical cables are not bent after passing through the through holes and the electric cables or optical cables are not broken. The through holes which are used for paving the electric cables or optical cables are formed in the four sides of the floor tile, the needed through hole angles are selected according to the direction the electric cables or optical cables passing through the current floor tile, and after the pavement of the floor tiles, the floor tiles are arranged and the through holes are communicated to ensure that the electric cables or optical cables are not bent after passing through the through holes and the electric cables or optical cables are not broken, so that safe pavement of the electric cables or optical cables is ensured.

The invention discloses a seafloor vacuum pipeline traffic system and a pushing type laying method thereof. The system comprises piers built on a seafloor, a pipeline is erected on the piers, the rearend of the pipeline is cooperatively connected with a pushing device and a welding platform, and welded pipelines are pushed to be extended forwards and laid section by section through the pushing device when construction is conducted; the middle of the seafloor vacuum pipeline is provided with a relay pushing station, the pipeline penetrates through the relay pushing station, the relay pushing station is arranged in an artificial island tower, and the front end of the first section pipeline is provided with a positioning guiding diving instrument; the method comprises the steps that a sealing plug is used for sealing a first section pipeline head to be placed into a pushing platform, the pipeline is tightly clamped by a pushing pipe clamp, and another section pipeline is welded to the welding platform; a pushing rod is started, and the pushing pipe clamp and the pipeline enter the sea and are moved forwards constantly until the shore at the other end of the sea is reached. The systemhas the advantages that it is ensured that there exists no bending in the laying process of the pipeline, the system is rapid, efficient and safe, and the engineering cost is low.

The invention relates to the technical field of ground pile arrangement systems and discloses a lever type ground pile arrangement system and method. The lever type ground pile arrangement system comprises a ground pile 1, a ground pile sleeve 2, a lever 3 and a support 4. The ground pile 1 is sleeved with the ground pile sleeve 2. The exterior of the upper portion of the ground pile sleeve 2 is hinged to the short arm end of the lever 3. The lever 3 is hinged to the support 4 through a detachable pin 6. By the adoption of the lever type ground pile arrangement system and method, the defect that according to a common ground pile arrangement system, time consumption and labor consumption are large when a ground pile is hit in and pulled out is overcome; the ground pile can be hit into the ground rapidly and pulled out of the ground easily, contact is firm, the ground pile arrangement time is shortened, the arrangement efficiency is high, and contact is good; and in addition, ground pile line connection is convenient, safe and high in reliability.