51 results about "Pipe" patented technology

The invention discloses a jacking pipe cutting protective structure for building remains and a construction method thereof. The protective structure comprises an earthwork foundation, a migration body, a box-shaped protective system and a hoisting base, and the box-shaped protective system comprises steel plate protective barrels and protective barrel keels; and the hoisting base comprises steel pipe curtains and opening locking steel beams, the opening locking steel beams and the steel pipe curtains are connected to form a whole, and the hoisting base is provided with hanging point structuresfor allowing hoisting ropes to be connected. The construction method of the protective structure comprises the steps of layered excavation of earthwork, pre-reinforcing of the migration body, lateralreinforcing, earthwork foundation construction, surrounding basement treatment, erection of a jack jacking pipe device, jacking trying, steel pipe marching, butting-joint of steel pipes, jacking andpenetrating through of a soil body, connection of the steel pipes and the opening locking steel beams, hoisting point setting, hoisting and the like. According to the jacking pipe cutting protective structure for the building remains and the construction method thereof, site arrangement is easy, the construction progress is quick, interference factors are less, civilized construction is facilitated, various resources can be well utilized, it can be ensured that surrounding existing facilities are intact, and safety of lives and property of residents is ensured.

The invention discloses a combined splicing tubular pipe. The combined splicing tubular pipe comprises at least two hollow pile bodies which are sequentially connected with each other, and is characterized by also comprising at least one steel tube body, the steel tube body is a hollow cylinder and sleeved on the outer circumference of the junction of two adjacent hollow pile bodies of the combined splicing tubular pile, the steel tube body is provided with a plurality of plug welding holes, and the steel tube body is connected with the hollow pile bodies through the plug welding holes in a welding manner. The inner side wall of the steel tube body is connected with the tail part of one pile body in a welding manner and then connected with the head of another pile body in a plug welding manner. The pile for the irrigation works is simple in pile splicing operation, high in carrying capacity and strong in bend resistance; the steel tube body is added on the junction of the two pile bodies, so that the carrying capacity of the pile for the irrigation works can be increased; the steel tube body is provided with the plug welding holes, and the steel tube body is connected with the pile bodies in the plug welding manner, so that convenience in welding is achieved, and time and labor are saved.

The invention provides a low-material-consumption and simple-structure erecting structure and erecting method for a top ring beam construction platform of a concrete silo and relates to the technicalfield of concrete silo construction. The erecting method for the top ring beam construction platform of the concrete silo comprises the following steps: pre-burying two layers of steel pipe layers separately consisting of a plurality of horizontally arranged steel pipes at the upper end of a silo wall, putting cantilever scaffold pipes into the steel pipes of the steel pipe layers, and separatelyerecting vertical rod scaffold pipes, cross rod scaffold pipes and diagonal scaffold pipes for support stress components at the cantilever sections, located at the two sides of the silo wall, of the cantilever scaffold pipes. The construction cost can be saved, and the construction cycle can be shortened.

The invention belongs to the technical field of constructional engineering, and relates to a method for grouting and wall protection of a soft stratum pile foundation through a steel casing. The method for grouting and wall protection of the soft stratum pile foundation through the steel casing comprises the steps that grouting pipes are arranged on the outer wall of the machined steel casing at equal intervals in the circumferential direction, and a plurality of layers of upper and lower grout overflowing holes are formed in each grouting pipe; after the steel casing provided with the grouting pipes is installed on a hard plastic stratum, grout is pressed and injected into a top grouting opening, the grouting pressure is adjusted according to the thickness of a soft stratum, grout with acertain thickness is pressed and grouted according to the wall of a grouting hole, and the grout flows out of a bottom grout outlet at first and then flows out of all layers of grout overflowing holesin sequence from bottom to top; after grouting is completed, the steel casing is pulled out, the pulling-out process is slowly carried out, the gap of the steel casing is filled with grout in a supplementing manner till the steel casing is completely pulled out, and a grout protection wall with certain strength is formed after the grout at the position of the original steel casing reaches the strength; and then pile foundation construction is conducted according to a conventional pile foundation. The construction cost is reduced, and the working efficiency is improved.

The invention discloses a separating device for pouring different strengths of concrete for beam and column joints. The separating device comprises a separating device body, wherein the separating device body comprises a steel bottom plate, and two pressing assemblies are arranged on the steel bottom plate in parallel. A plurality of casing pipes distributed in parallel are installed between the two pressing assemblies, wherein the two ends of each casing pipe are arranged in the two pressing assemblies respectively, and each casing pipe is limited between the two pressing assemblies. A plurality of plugging rods used for forming interfaces between the different strengths of concrete at the positions of the beam and column joints are arranged in the separating device body in an inserted mode, wherein each plugging rod is arranged in the corresponding casing pipe in the two pressing assemblies in a penetrating mode and is pressed, positioned and fixed by the two pressing assemblies. Theseparating device ensures the separating effect and the pouring quality of the different strengths of concrete at the positions of the beam and column joints, waste of the concrete is reduced, and the perception effect is good.

The invention discloses a construction method based on a box-drum-type pile stabilizing platform. The construction method comprises the following steps that sequentially, the pile stabilizing platformassembled by a box drum, a steel pipe, a fixed truss and a moving truss is dragged to a construction site, synchronous and identical-speed air pumping is conducted on the box drum for fixing the pilestabilizing platform, the moving truss is lifted upwards to above the surface of the water and then fixed, a piling frame and a pile holding device are mounted on the moving truss, and a steel pipe pile with the large diameter is hoisted into the pile holding device; and an ejecting device on the pile holding device is used to adjust the perpendicularity, the steel pipe pile with the large diameter enters into the stable state after sinking into mud, pile sinking is conducted to the design elevation position, the pile stabilizing platform is moved, and the processes are repeated until the construction is completed. The construction method based on the box-drum-type pile stabilizing platform is simple in operation, the pile stabilizing platform adopted in the construction process is simplein structure, the horizontal carrying capacity and construction efficiency of the box-drum-type pile stabilizing platform are greatly improved, the construction quality of the steel pipe pile with the large diameter can be further ensured effectively, and the construction method is suitable for the construction of the steel pipe pile with the large diameter under different water depth and geological conditions.

The invention discloses a multi-caliber pipe bending device for steel pipe machining, and relates to the technical field of steel pipe machining. The device comprises a workbench, limiting bases whichare symmetrically arranged are fixed to the edges of the two sides of one end of the workbench, extension seats are sleeved between the two ends in the two limiting seats, a two-way threaded rod in threaded fit with the extension seats is rotationally connected between the tops of the two limiting seats, and clamping pieces are in threaded connection with the side surfaces of the opposite ends ofthe two extension seats; and an air cylinder is fixed to the surface of one end, away from the limiting seats, of the workbench, a connecting frame is fixed at the end of a piston rod of the air cylinder, the end of the connecting frame is sleeved with a pipe bending plate, and the end of the pipe bending plate is sequentially sleeved with a plurality of pipe bending frames. According to the device, under the action of the limiting seats and the clamping pieces, steel pipes with different calibers can be clamped and limited, the two-way threaded rods rotate to enable the two extension seats to relatively move to adjust the bending diameter, the pipe bending plate and the pipe bending frames are connected in a sleeving mode, pipe bending treatment can be conveniently conducted on the steelpipes with different calibers, and universality is high.

The invention provides an underground drainage gas production device and a pipe column. The underground drainage gas production device comprises an upper joint, a central cylinder arranged at the lower end of the upper joint in a communication mode, a first clamping and hanging part sleeving the outer side of the central cylinder, a setting assembly sleeving the outer side of the central cylinderand located at the lower end of the first clamping and hanging part, and a first flow channel capable of being in communication with an inner cavity of the central cylinder, wherein the first flow channel is of a spiral structure. The underground drainage gas production device is of a rear-mounted structure, second clamping and hanging parts capable of being matched with the underground drainage gas production device can be firstly put into a shaft, and when throttling is needed, the underground drainage gas production device is put into the shaft, and the second clamping and hanging parts areof a cylinder shape, so that the drift diameter in the pipe column and the later operation are not influenced.

The invention discloses a concrete pipe pile. The concrete pipe pile comprises a first pile body, a second pile body, an end plate and a pile cap, wherein each of the first pile body and the second pile body comprises a concrete layer and a steel wire mesh, the first pile body is fixedly connected with the end plate, a first longitudinal reinforcing rib and second longitudinal reinforcing ribs arewelded to the lower surface of the end plate, metal rods are welded to the first longitudinal reinforcing rib, stirrups are welded to the second longitudinal reinforcing ribs, the metal rods penetrate through the steel wire meshes, the tail ends of the metal rods are welded to the second longitudinal reinforcing ribs and the stirrups correspondingly, the metal rods and the stirrups form triangular shapes correspondingly, a metal plate is arranged on the second pile body, the metal plate is in threaded connection with the first pile body, angle iron is welded to the bottom surface of the metalplate, the pile cap comprises a rubber pad and a sleeve, and the rubber pad is a square rubber pad. The concrete pipe pile does not generate noise and is convenient to transport when the concrete pipe pile is constructed.

The invention discloses a storage bin wall vibrating device, and belongs to the technical field of storage bins. The device comprises a storage bin wall, wherein a fixed rib plate is welded to the inner wall of the storage bin wall, round steel is fixedly arranged on the surface of the fixed rib plate, an outer ring of the round steel is sleeved with a seamless steel pipe, a vibrating steel plate is welded to an outer ring of the seamless steel pipe, and a vibrating motor is mounted on the surface of the vibrating steel plate. According to the device, the vibrating motor drives the vibrating steel plate to vibrate the storage bin wall, so that materials adhering to the storage bin wall are loosened and collapsed by vibration, the purpose of removing the adhering materials is achieved, the storage bin wall is not damaged by vibration, the problem of material adhesion to the wall of a storage bin can be effectively solved, the storage bin cleaning time of workers is shortened, the production operation rate is increased, the manual maintenance and operation cost is reduced, and the technology is high in practicability, wide in application range and good in using effect.

The invention relates to a manufacturing method for a large-caliber abrasion-resistant corrosion-resistant ternary composite pipe accessory. The steps include that 1 a binary metal ceramic composite pipe fitting is manufactured, a metal ceramic composite steel pipe which is subjected to self-propagating high-temperature centrifugal synthesis (SHS) reaction is cut and welded in a spliced mode to form a required pipe fitting according to requirements; 2 abrasion-resistant materials are used for filling gaps of joints and mainly composed of abrasion-resistant inorganic particles and modified resin composite adhesives; 3 a separable double-layer mold is used for being lined in the inner cavity of a branch pipe, and inner surface resin layer pouring forming is conducted by combining a vacuum centrifugal pouring process. By means of the manufacturing method, the problem that a part of the composite resin layer of the ternary composite pipe accessory must be manufactured manually and can not be formed through machinery is solved, and the resin layer of the ternary composite pipe accessory and sealing face resin can be formed through one step. By means of the pipe accessory manufactured through the method, the resin layer is even in thickness, end product quality is stable and reliable, the service life is prolonged, application of an abrasion-resistant corrosion-resistant ternary composite pipeline project is guaranteed effectively, important project value is achieved, and production efficiency is improved.

The invention discloses a checking and homogenizing device comprising a seat plate, a lifting mechanism, a mixing cylinder, a pumping mechanism, a stirring mechanism, a cover body and a power motor; the lifting mechanism comprises a support plate, a lifting screw and a lifting seat; the pumping mechanism comprises a cam, a pump pipe and a return pipe; and the stirring mechanism comprises a stirring shaft and stirring blades. The checking and homogenizing device has the beneficial effects that in the working process of the device, the power motor drives the stirring mechanism and the pumping mechanism to work, the stirring mechanism conducts stirring work, the stirring blades are arranged to be in a double-helix shape, on one hand, the stirring effect is improved, on the other hand, stirred materials surge up and down; in the working process of the pumping mechanism, stirred materials at the bottom can be continuously extracted and flow back from the upper portion of the mixing cylinder, and the phenomenon that the stirred materials sink to the bottom can be avoided; and the stirring mechanism is convenient to disassemble and assemble, and thus the interior of the stirring mechanism and the interior of the mixing cylinder are easy to clean.

The invention discloses a pipe shed for reinforcing a rock-soil layer, and belongs to the technical field of reinforcing devices. The pipe shed for reinforcing the rock-soil layer is characterized in that a plurality of first through holes are formed in the bottom pipe wall of a pipe body, and the bottom outer wall is tightly attached to a bottom plate; a supporting structure comprises a top plate, a lifting device and four supporting rods, the top plate is tightly attached to the inner wall of the top of the pipe body, the top ends of the two supporting rods are hinged to the two sides, in the length direction of the pipe body, of the top plate, the two supporting rods on the same side intersect with each other, and the bottom ends of the supporting rods abut against the bottom wall of the pipe body; the middle of the top plate is fixedly connected with a base of the lifting device, the head of the lifting device penetrates through the first through hole and abuts against the bottom plate; one end of each reinforcing column abuts against the side wall of the pipe body, and the other end of each reinforcing column penetrates through the first through hole to abut against the bottom plate. The whole process is used for counteracting ground stress loss caused by engineering construction, so that the influence quantity of disturbance on an existing underground structure is reduced, the stress of a rock-soil body is controlled, a rock-soil layer of underground facilities is effectively reinforced, and the underground facilities are protected.

The invention relates to the technical field of natural gas conveying pipelines, and particularly relates to an anti-corrosion construction method for a natural gas conveying pipeline. The method comprises the steps that S1, ditching is conducted according to a construction drawing; S2, a channel is tamped, a waterproof film is laid in the channel, and the waterproof film is covered by covering soil; S3, pipe piers are placed in the channel at equal intervals, and anti-corrosion pipes are erected on the pipe piers; S4, the interior of each anti-corrosion pipe is cleaned, and after cleaning is completed, ports of every two adjacent anti-corrosion pipes are welded; S5, after welding is completed, water feeding and pressing are conducted; S6, a hoop is bundled at the outer side of each anti-corrosion pipe; S7, a supporting pipe is horizontally laid on the upper end opening of the channel, and a waterproof film is laid on the supporting pipe; S8, dry soil is laid on the waterproof film, and the dry soil is covered by pressed soil; and S9, a warning sign is erected at the laid pipeline. According to the method, the anti-corrosion pipe can be prevented from being in direct contact with soil, water in the soil is prevented from corroding the pipeline, the corrosion resistance of the pipeline is improved, and the service lifetime of the pipeline is prolonged.

The invention provides an L-shaped pitot tube capable of being straightened. The L-shaped pitot tube comprises a horizontal tube section and a vertical tube section, wherein one end of the horizontaltube section and one end of the vertical tube section are in flexible connection to form an L-shaped structure capable of being straightened. When the connecting pipe is too long or the area of a measuring hand hole is too small, the pitot tube is adjusted to be of a 1-shaped structure, and when a normal test experiment is conducted, the pitot tube is reset to be in an L shape, and measurement ofairflow total pressure and static pressure is completed. Therefore, the problem that when the connecting pipe is too long or the area of the measuring hand hole is too small, the L-shaped pitot tube cannot be inserted into the pipeline through the measuring hand hole to measure the flow velocity can be well solved.

The invention belongs to the technical field of geological exploration, and particularly relates to geological exploration equipment for geological exploration, when holes are drilled in a viscous gravel ground, crushed aggregates in a material taking pipe can extrude air in the material taking pipe, the air in the material taking pipe is discharged through a first vent groove and a second vent groove, and the air in the material taking pipe is discharged through the first vent groove and the second vent groove, it is guaranteed that the material taking pipe can be filled with the crushed materials, and then the material taking effect is guaranteed; after sampling is completed, a limiting block and a material taking pipe vibrate up and down under the combined action of the thrust of a cam and the elastic force of a reset spring, so that crushed aggregates adhered to the inner wall of the material taking pipe are separated from the inner wall of the material taking pipe, and the crushed aggregates are conveniently taken out; the angle of the ground nail can be freely adjusted, so that the ground nail is inserted into the ground surface according to the shape of the ground surface, the angles of the hemispherical block, the connecting rod, the pressing plate and the ground nail are kept unchanged in the drilling process through the supporting effect of the supporting rod, and therefore it is guaranteed that a drill bit always moves downwards along the axis, and a drilling pipe is prevented from being damaged.

The invention provides a high-temperature pressure fusion manufacturing method of a composite pipe internally coated with stainless steel, and relates to the technical field of composite pipe manufacturing. The manufacturing method of the composite pipe internally coated with the stainless steel comprises the following steps of S1, steel pipe straightening and cleaning; S2, carbonate expanding agent packaging; S3, base tube reducing; S4, high-temperature pressure fusion; S5, pipe opening cutting, cleaning and processing; and S6, finished product inspecting. The composite pipe is heated to the phase transition temperature, the yield strength of a lining stainless steel pipe is reduced, meanwhile, carbonate in the lining pipe is heated, carbon dioxide gas is decomposed from the carbonate and expands along with rising of the temperature, and therefore outward pressure is applied to the lining pipe, the lining pipe is forced to be subjected to plastic deformation, metal on an attaching interface of the inner wall of a base pipe and the outer wall of the lining pipe is mutually diffused and metallurgically fused to form the composite pipe internally coated with the stainless steel, the bonding strength between double metal layers of the stainless steel composite pipe is higher, the interlayer bonding force is improved, and the method is worthy of being vigorously popularized.

The invention relates to a double-sprue positioning device for casting, which is used for positioning and arranging a sprue earthenware pipe in the pouring and casting process of an under-screen steel ladle, the positioning device comprises a device body and two fixed bosses, two grooves are formed in the two ends of the device body, and through track grooves for casting are formed in the horizontal center directions of the grooves; a horizontal level bubble is arranged in the center of the device body; the fixing boss is fixed below the track groove, the outer diameter of the fixing boss is matched with the inner diameter of the sprue ceramic pipe, and the circle center of the fixing boss corresponds to the circle center of the sprue ceramic pipe. The device has the beneficial effects that the sprue ceramic pipe is prevented from inclining, and the center of a ladle nozzle corresponds to the center of the sprue ceramic pipe.

The invention discloses a steel pipe-reinforced concrete composite pile. The steel pipe-reinforced concrete composite pile is characterized in that steel pipe-reinforced concrete is of a combined structure of two types of piles, a pile body is divided into three sections, the lower portion is a reinforced concrete pile (1), the upper portion is a steel pipe pile (2), and the middle portion is a steel pipe encased concrete pile (3); and the reinforced concrete piles and the steel pipe piles are connected through steel-concrete connecting pieces (4) in the middle. According to the steel pipe-reinforced concrete composite pile, a large-bearing-capacity temporary structure in a deep soft soil layer or a water area environment meets the requirements that a pile foundation is large in vertical and horizontal bearing capacity, large in horizontal deformation resistance, convenient to construct and dismantle and small in influence on the water area environment.

The invention discloses an auxiliary tool capable of removing a supporting steel pipe at a high distance, and relates to the technical field of subway construction equipment. The device comprises a fixing plate, a square groove is formed in the fixing plate, supporting assemblies used for supporting are fixed to the four end corners of the top of the fixing plate, a supporting plate is fixed between the top ends of the two supporting assemblies on the same side, and a supporting block is fixed between the top ends of the two supporting assemblies at the same end. An arc-shaped groove is formed in the top end of the supporting block, the supporting assembly is a supporting rod, the supporting assembly is a height-adjustable lifting piece, the lifting piece is composed of a fixing shell, a threaded rod, a connecting block and a driving motor, and the bottom end of the fixing shell is fixed to the fixing plate. Through cooperation of the supporting assembly, the supporting plate and the supporting block, when the steel support dismantling device is used for dismantling the steel pipe at the high position, the steel pipe at the high position can be dismantled through assistance of the steel support dismantling device.

The invention discloses a drainage pipeline system, construction method and leakage detection method. The drainage pipeline system, construction method and leakage detection method solve the problem that a leakage detection method of a drainage pipeline system at the present stage is too complicated. According to the technical solution, the drainage pipeline system is characterized by comprising at least two detection wells and drainage pipelines arranged between the adjacent detection wells, wherein each drainage pipeline comprises a plurality of pipeline units which are spliced in a sealed mode, each pipeline unit comprises an inner pipe and an outer pipe, a closed detection cavity is formed between each inner pipe and the corresponding outer pipe, the drainage pipeline system further comprises a detection pipeline, the detection pipeline comprises a detection main pipe and a detection branch pipe for communicating the detection main pipe with a detection chamber, an air pressure sensor is arranged on one end of the detection main pipe, a sealing plug is detachably installed on the other end of the detection main pipe, and a first electromagnetic valve for controlling the detection main pipe to communicate with the detection chamber is arranged on the detection branch pipe. The drainage pipeline system has the advantage of being simple and convenient in leakage detection.

The invention discloses a novel million-tower boiler top sealing structure and a mounting method thereof. A mechanical sealing device is adopted for the top of a traditional tower type boiler, a membrane type wall pipe is adopted for welding sealing, the design and manufacturing cost of the boiler is increased, and since the phenomena of smoke leakage and ash leakage of the top of the boiler are caused by the difference of the field actual welding quality and the welding quality problem, the overall safety of a unit is affected. The novel million-tower boiler top sealing structure comprises asealing steel plate (1), the periphery of the sealing steel plate is connected with a boiler front wall (2), a boiler right wall (3), a boiler rear wall (4) and a boiler left wall (5) in a welded mode, and the boiler front wall, the boiler right wall, the boiler rear wall and the boiler left wall are each composed of a medium-free water cooling wall pipe (6). The medium-free water cooling wall pipes are connected through fins (8), and a set of medium-free hanging pipes (7) are evenly arranged on the sealing steel plate in a welded mode. The novel million-tower boiler top sealing structure is used for novel million-tower boiler top sealing.

The invention relates to scaffold steel pipe self-adaptive length classification lifting auxiliary building equipment. The scaffold steel pipe self-adaptive length classification lifting auxiliary building equipment comprises a classification box and a transition cavity formed in the classification box, wherein an upper selection hydraulic device is fixedly arranged on the upper side of a selection cavity, and an upper selection plate is fixedly arranged on a hydraulic rod of the upper selection hydraulic device. The scaffold steel pipe self-adaptive length classification lifting auxiliary building equipment is placed at the designated position, after steel pipes are placed at designated positions, rust removal and paint spraying can be performed on the surfaces of the steel pipes of scaffolds for construction, the effect of protecting the steel pipes is achieved, separation can be performed according to the lengths of the steel pipes, the steel pipes with different lengths are liftedto constructors according to the requirements of the constructors, and the angles of the steel pipes can be changed according to the construction requirements; The staff efficiency can be improved.