27 results about "Pipe in pipe" patented technology

This invention discloses a waste transfer device for high-rise building construction, relating to the technical field of building engineering and related equipment. The invention includes a central pipe and a floor slab located inside it. A feeding pipe is provided below the front end face of the central pipe. Sliding grooves are provided on the upper and lower sides of the outer walls of the central pipe. Installation components are provided on the front ends of the outer walls of the central pipe. A first limiting component is provided inside the pressing groove, a rotating component is provided inside the adjusting groove, a second limiting component is provided inside the moving groove, and a crushing component is provided above the front end face of the central pipe. This invention improves the stability of the device through the installation components and the first limiting component, preventing thread stripping and reducing safety hazards. Simultaneously, the rotating component and the second limiting component facilitate quick installation, docking, and disassembly of the folded pipe by construction personnel, resulting in high work efficiency. The crushing component further improves the efficiency of waste transfer and avoids pipe blockage.

The application discloses a high-rigidity unbonded cooperative loading system and a construction method thereof, belongs to the technical field of structural engineering test, and is characterized in that opposite-side cooperative steel beams are arranged on opposite sides of a structure to be tested; top-loading steel beams are arranged in a cross shape in the opposite-side cooperative steel beams and are connected with the opposite-side cooperative steel beams at the ends; the top-loading steel beams are double-layer unbonded sleeve pipe assemblies, which comprise an inner square steel pipe and a peripheral round steel pipe sleeved outside the inner square steel pipe, and a preset gap is arranged between the inner square steel pipe and the peripheral round steel pipe; and horizontal prestressed tendons are arranged around the peripheral round steel pipe and are connected with the opposite-side cooperative steel beams at the ends. The high-rigidity unbonded cooperative loading system and the construction method thereof are adopted, the force transmission channel is separated from the fixed interface through the unbonded design of the pipe-in-pipe, and the problems of local buckling, deformation coupling and poor opposite-side cooperativeness of the traditional loading scheme in the super-large tonnage test are solved.

The utility model relates to a caterpillar type supporting structure used for a pipe-in-pipe, which solves the problems that when a large-depth single-well geothermal energy exploration and production well adopts a pipe-in-pipe or hole-in-pipe structure, the supporting and fixing of a central pipe not only need to ensure that the central pipe does not incline or deform, but also need to ensure the requirement of flexible adjustment. The structure comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe in a penetrating mode, a gap is formed between the outer wall of the inner pipe and the inner wall of the outer pipe, a supporting mechanism is arranged between the outer wall of the inner pipe and the inner wall of the outer pipe and comprises a sleeve arranged on the outer wall of the inner pipe in a sleeving mode, at least three supporting feet are evenly arranged on the periphery of the sleeve, and the outer ends of the supporting feet abut against the inner wall of the outer pipe. Each supporting foot is sequentially provided with a first one-way joint and a second one-way joint from inside to outside, and the swinging directions of the first one-way joints and the second one-way joints are both in the axial direction of the outer pipe and are opposite. Stable supporting is formed in the static state, and when the inner pipe and the outer pipe are drawn relative to the axial direction, the first one-way joint and the second one-way joint can reduce drawing resistance bidirectionally and avoid obstacles.

The utility model belongs to the technical field of domestic water, and particularly relates to a diaphragm type balance valve core for a pipe-in-pipe and a balance valve. The balance valve is provided with a balance valve element and comprises a balance valve frame, a balance valve element and a balance valve element, the valve core seat is mounted on the balance valve frame; the diaphragm component is installed on the valve element seat or in the balance valve frame, and a balance channel is arranged between the valve element seat and the diaphragm component or between the balance valve frame and the diaphragm component; the diaphragm component can deform and change the sectional area of the balance channel according to the pressure of the first channel. The medium pressure is large, the deformation amount of the diaphragm component is large, and the backflow amount of the balance channel is small, so that the backflow amount of the branch away from the circulating pump is larger than or equal to the backflow amount of the branch close to the circulating pump, the effect that the backflow amount is small and large is achieved, and the circulating efficiency and the water quality of the branch at the far end are guaranteed.

The utility model relates to the technical field of plastic pipe fitting production, and discloses a continuous pipe feeding pipe cutting machine for plastic pipe fitting production, which comprises a base, the outer wall of the upper end of the base is rotatably connected with a cutting arm, one end of the cutting arm far away from the base is rotatably connected with a cutting wheel, and the outer wall of the upper end of the base is fixedly connected with a fixed push rod. And the output end of the fixed push rod is fixedly connected with a fixed plate, a cutting groove is formed in the outer wall of the upper end of the base, and a material continuing assembly is arranged outside the base. According to the pipe cutting machine capable of continuously feeding the pipes for plastic pipe fitting production, multiple sets of plastic pipes are placed in the pipe storage groove, at the moment, when the electric push rod drives the barrier strip to move, one ends of the plastic pipes in the pipe storage groove can stretch out of the discharging groove, and when the barrier strip moves along with the electric push rod, the plastic pipes can be disengaged from the discharging groove; the plastic pipes in the pipe storage groove can be continuously pushed out when the electric push rod reciprocates, time and labor are saved, and the efficiency of the pipe cutting machine is higher.

The utility model belongs to the technical field of water conservancy facilities, and particularly relates to a reservoir water intake pipe system which comprises a main pipe gallery, a standby pipe gallery and a water supply three-way pipe, the standby pipe gallery and the main pipe gallery are consistent in structure, the two ends of the water supply three-way pipe are communicated with the main pipe gallery and the standby pipe gallery respectively, and when the main pipe gallery is not maintained, the standby pipe gallery is started, and the water supply three-way pipe is started. The main pipe gallery comprises a pipe gallery body, a PVC foaming floating platform, an L-shaped water taking pipe and a counterweight ball, the L-shaped water taking pipe is movably inserted and mounted at one end of the pipe gallery body, the PVC foaming floating platform and the counterweight ball are assembled at the top end of the L-shaped water taking pipe and connected with the L-shaped water taking pipe through ropes, the PVC foaming floating platform is used for lifting the top end of the L-shaped water taking pipe, and the counterweight ball is used for lifting the top end of the L-shaped water taking pipe. The top end of the water taking L-shaped pipe is always close to the water surface, and turbid water at the bottom of the reservoir is prevented from entering the water taking L-shaped pipe; and the counterweight ball is used for pulling the water taking L-shaped pipe downwards when the water surface is lowered, so that the water taking L-shaped pipe can take water all the time, and the water taking is more reasonable.

The utility model discloses a building foundation pit spraying dust fall device, which relates to the technical field of building construction and comprises a first limiting frame and a second limiting frame, mounting seats are fixedly connected above and below one end of the first limiting frame, and two adjacent mounting seats are fixedly connected through bolts. A first limiting frame and a second limiting frame are arranged on the base, a rotating wheel seat is rotatably connected between the first limiting frame and the second limiting frame, a middle pipe is fixedly connected into the rotating wheel seat, one end of the middle pipe is fixedly communicated with a connecting port, and the other end of the middle pipe is fixedly connected with an atomizing nozzle. Meanwhile, the design structure is simple, use is convenient, the first limiting frame and the second limiting frame are designed in a split mode, the rotating wheel base can be conveniently detached, taken out and replaced, meanwhile, the swing frequency of the middle pipe can be adjusted according to the rotating speed of the driving motor, and use is convenient.

1. The name of the design product: hook for pipe spraying. 2. The use of the design product: used for hanging pipes in pipe spraying operation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: front view.

The present application relates to the technical field of workshop storage equipment, in particular to a kind of pipe production workshop storage rack for temporarily storing pipe in production workshop, comprising: fixed frame group, including first side plate, second side plate and top plate, first side plate, second side plate and top plate are enclosed to form the workspace of half covering, first side plate is provided with discharging opening;Movable frame group is set in workspace, including frame body and the movable frame plate of multiple groups corresponding discharging opening, frame body and movable frame plate are enclosed to form the cavity of placement;Movable frame plate slides along support assembly and embeds fixed frame group rear support assembly jacking contact plate, so that movable frame plate is inclined;Support assembly according to the gravity of the activity frame plate received controls the start-stop of overturning component.The pipe production workshop storage rack provided by the present application can automatically place and store pipe in pipe production workshop, facilitate operator to take and place pipe, effectively save human resources and improve the work efficiency of operator.

The utility model discloses a pipe-in-pipe water return device which comprises a pipe body, a partition plate, a conversion valve and a connecting piece. The pipe body comprises an L-shaped pipe body and a straight pipe body, the L-shaped pipe body and the straight pipe body are divided into an input cavity and a backflow cavity by the partition plate, and the outer wall of the L-shaped pipe body and the outer wall of the straight pipe body are coated with thermochromic coating; the connecting piece comprises a pipe body connecting piece and an adaptive connecting piece, the L-shaped pipe body is communicated with the straight pipe body through the pipe body connecting piece, one side of the straight pipe body is connected with the adaptive connecting piece, and the other side of the L-shaped pipe body is connected with the conversion valve; the conversion valve is located at the first end, away from the straight pipe body, of the L-shaped pipe body and comprises a valve body, a valve element and a flow turning ring. The adaptive connecting piece comprises an adaptive connecting plate, an adaptive upper bottom surface and an adaptive lower bottom surface; adaptive left through holes corresponding to the input cavity and the backflow cavity respectively are formed in the adaptive lower bottom surface; and the straight pipe body middle partition plate is clamped to the adaptive connecting plate. According to the utility model, the additional laying design and construction of the water return pipeline can be reduced, and the design workload and laying workload are reduced.

There is provided a pipe-in-pipe section for use in a pipe-in-pipe pipeline for subsea transport of hydrocarbons, the pipe-in-pipe section comprising: an outer pipe section; an inner pipe section disposed within the outer pipe section; and a vent-annulus defined between the outer pipe section and the inner pipe section; a polymer liner disposed within the inner pipe section; a micro-annulus defined between the polymer liner and the inner pipe section; and a plurality of vents configured to allow a fluid to flow from the micro-annulus into the vent-annulus.

The utility model belongs to the field of domestic water technology, especially point to a kind of pipe-in-pipe circulation system suitable for direct drinking water, it includes: pipe-in-pipe pipeline, with main pipeline and several branch, branch still be provided with multiple water outlet connector;Functional module, with circulating pump and the functional component for water purification;Circulation control module, with electric circulation control valve installed on the return channel of main pipeline or / and branch and the balance valve core installed on the water outlet connector.In the system, the return flow of the branch far from circulating pump is greater than or equal to the return flow of the branch close to circulating pump, the effect of small near and large far is realized, the circulation efficiency and water quality of remote branch are ensured.At the same time, the range of internal circulation can be controlled according to the opening time of electric circulation control valve, both can reduce the working burden of circulating pump, and can further improve the circulation effect of corresponding branch.

The utility model provides a connecting and sealing device of a cable pipe for pipe drawing construction, which relates to the technical field of pipe drawing construction, and comprises a cable pipe, a sealing element is arranged at the end part of the cable pipe, a groove is arranged in the sealing element, and the sealing element is connected with the cable pipe. A mounting ring is fixedly mounted at the position, close to the end, of the outer surface of the cable tube, the mounting ring is mounted in the groove to fix connection between the sealing part and the cable tube, and a connecting part is rotationally mounted at the end, away from the cable tube, of the sealing part; by arranging the mounting ring on the cable tube, forming the grooves for mounting the mounting ring in the shells and arranging the two shells, the fixing effect can be ensured while the sealing element and the cable tube can be conveniently connected, and the first mounting groove and the second mounting groove are formed in the two sides of the groove correspondingly, so that the sealing element is more convenient to mount and demount. The first sealing ring and the second sealing ring are installed, and the sealing effect of the sealing piece can be guaranteed.

The utility model belongs to the technical field of corrosion prevention in high-sulfur-content oil and gas pipelines, and particularly relates to a corrosion prevention structure in a high-sulfur-content gas pipeline. The high-density polyethylene lining pipe is arranged in the metal gas pipeline in a penetrating manner by utilizing good chemical stability and corrosion resistance of a non-metal material, so that a pipe-in-pipe composite structure in which the non-metal is internally inserted and is wrapped and matched with the metal pipeline is formed, and a structure in which the electric melting sleeve is combined with the steel sleeve filled with the cement is wrapped is adopted at a pipeline joint; for media with high corrosivity in the gas pipeline, the phenomena of leakage, perforation and the like of the pipeline can be avoided, and then normal production of a gas field is effectively guaranteed; the anti-corrosion pipeline is compact in overall structure, reliable in quality, convenient to construct, low in maintenance cost, long in service life, good in anti-corrosion performance and capable of greatly improving the protection effect of the pipeline in the strong internal corrosion environment.

The invention relates to the technical field of foundation pit construction, in particular to a pipe-in-pipe double-layer filter material artesian well dewatering structure and a construction method.The pipe-in-pipe double-layer filter material artesian well dewatering structure comprises a first filter pipe, a second filter pipe, a first filter material layer and a second filter material layer, first water permeable holes are formed in the first filter pipe at intervals, and second water permeable holes are formed in the second filter pipe at intervals; the periphery of the second filter pipe is sleeved with the first filter pipe, an avoiding distance is formed between the first filter pipe and the side wall of the precipitation drill hole, the space between the side wall of the precipitation drill hole and the first filter pipe is filled with the first filter material layer, an avoiding distance is formed between the first filter pipe and the second filter pipe, and the space between the first filter pipe and the second filter pipe is filled with the second filter material layer; the diameter of the coarse filter material of the first filter material layer is greater than that of the fine filter material of the second filter material layer. According to the invention, surrounding underground water is in contact with the coarse filter material in the first filter material layer and the fine filter material in the second filter material layer in sequence; therefore, the condition that soil particles are deposited in the precipitation drilling well is reduced, and the foundation pit precipitation effect is improved.

The utility model provides an assembly type pipe-in-pipe. Comprising a bent pipe body, a connecting column arranged at the lower end of the bent pipe body, a water outlet seat arranged at the upper end of the bent pipe body, an outer water cavity formed in the bent pipe body, an inner water pipe arranged between the connecting column and the water outlet seat and located in the outer water cavity, and a water inlet cavity formed in the connecting column and communicated with the inner water pipe. The first water outlet end is arranged on the water outlet base, the first water outlet cavity is formed in the water outlet base and communicates with the first water outlet end and an inner water pipe, the side water cavity is formed in the connecting column and communicates with an outer water cavity, and the second water outlet end is arranged on the water outlet base. The second water outlet cavity is formed in the water outlet base and communicated with the second water outlet end and the outer water cavity, a lower sealing ring is arranged between the connecting column and the bent pipe body, and an upper sealing ring is arranged between the water outlet base and the bent pipe body.

The application provides a laser drilling machine combined drilling tool, a drilling machine and a working method. The laser drilling machine combined drilling tool comprises a drill rod, and the drill rod comprises a first outer rod, an outer rod variable diameter section, a second outer rod, a first inner rod, an inner rod variable diameter section, a second inner rod, a wear-resistant copper sleeve and a support ring. The first outer rod is connected with the second outer rod through the outer rod variable diameter section, the first inner rod is connected with the second inner rod through the inner rod variable diameter section, the inner diameter of the second outer rod is smaller than that of the first outer rod, the inner diameter of the second inner rod is smaller than that of the first inner rod, the wear-resistant copper sleeve is arranged between the first outer rod and the first inner rod, and the support ring is arranged in the first inner rod. The application adopts the structure of "multi-pipe-in-pipe", solves the problem of dynamic and static separation of the inner and outer rods, arranges the cutting teeth in the center of the drill bit by offsetting the laser, and makes the drill bit realize full-face rock breaking. Meanwhile, the alignment problem of the light hole of the drill bit and the laser beam in the rotating process is avoided through the inner rod fine adjustment mechanism.

A closed well loop is provided for a geothermal system. The closed well loop includes a well (single well) that traverses a subterranean formation to extract heat from the subterranean formation. The well includes a section having an inner pipe that is supported inside an outer pipe in a pipe-in-pipe arrangement. The inner pipe has an interior flow channel that defines a first flow path for circulating working fluid, and the annulus between the inner pipe and the outer pipe defines a second flow path for the circulating working fluid. The well can be configured to extract heat from the subterranean formation and transfer heat to the circulating working fluid that flows in the first and second flow paths. The inner pipe can include a thermally-insulative piping system that reduces the amount of heat transferred from the circulating fluid that flows in the first and second flow paths within the well.

A transition section disposed between successively spoolable, electrically trace-heated PiP pipelines comprises an inner pipe, an outer pipe, and an annulus between the inner and outer pipes. The annulus contains heating cables that extend longitudinally between annuli of the pipelines and longitudinally spaced seals that, when deactivated, allow fluid communication between the annuli of the pipelines and, when activated, isolate the annuli of the pipelines from each other. Longitudinally spaced blocking plates close the lumen of the inner pipe and define an inner chamber between them. Longitudinally spaced openings penetrate a wall of the inner pipe at locations longitudinally inboard of the blocking plates and the seals. The openings effect fluid communication between the annulus and the inner chamber and also define a diversion path for the heating cables that extends from the annulus to the inner chamber and back to the annulus.

The invention discloses a pipe feeding mechanism of a collaborative robot, and relates to the technical field of filling machines, the pipe feeding mechanism of the collaborative robot comprises a rack, a material taking mechanism, a pipe box conveying mechanism and a pipe conveying mechanism, the material taking mechanism, the pipe box conveying mechanism and the pipe conveying mechanism are arranged at the upper end of the rack, the pipe box conveying mechanism is located between the material taking mechanism and the pipe conveying mechanism, the pipe box conveying mechanism is used for conveying pipe boxes, and the material taking mechanism is used for taking out aluminum pipes in the pipe boxes and moving the aluminum pipes to the pipe conveying mechanism. According to the full-automatic pipe feeding machine, through the arrangement of the material taking mechanism, the pipe box conveying mechanism and the pipe feeding mechanism, seamless butt joint of the processes of pipe box conveying, material taking, pipe feeding and the like is achieved, the pipe feeding time is greatly shortened, and the productivity of a production line is effectively improved.

The utility model discloses an assembly type multi-pipe grouting screw anchor structure for reinforcing multiple layers of silt soft soil. The assembly type multi-pipe grouting screw anchor structure comprises a screw anchor structure and a grouting device. The spiral anchor structure comprises an anchor rod, an anchor disc and an anchor head; the anchor rod sequentially comprises an outer pipe, a middle pipe and an inner pipe from outside to inside, wherein the outer pipe, the middle pipe and the inner pipe are coaxially arranged at intervals. The multiple outer pipes are arranged at intervals, and the outer pipe located at the bottommost end is provided with an anchor disc and an anchor head. The assembly type grouting pipes are arranged between the adjacent outer pipes and detachably connected with the outer pipes. Grouting channels are formed in the positions, corresponding to the middle pipe and the inner pipe, of the assembly type grouting pipe; a plurality of grouting holes which are uniformly distributed in the circumferential direction of the anchor rod are formed in the positions, corresponding to the middle pipe and the inner pipe, of the outer pipe located at the bottommost end; the grouting device is used for inputting grout of different types or concentrations into the interior of the inner pipe, the middle pipe, the inner pipe and the outer pipe at intervals, and the grout is output from the grouting channel and the grouting hole. And the soft soil layer is reinforced through grouting of the spiral anchor structure and the triple pipe structure.

A pipe-in-pipe section 2 of a pipeline (4) for subsea transport of hydrocarbons, the section comprising: an outer pipe section 10; an inner pipe section 12 disposed within the outer pipe section; and

The utility model discloses a five-way indexing chuck tool, relates to the field of valve machining equipment, and aims to solve the problems that a five-way pipe needs to be clamped and fixed for multiple times in the pipe orifice machining process, and the overall machining efficiency, the machining precision, the assembly performance and the service life of the five-way pipe are affected. An upper pressing block is arranged on the upper portion of the five-way pipe body in a matched mode, a lower supporting block is arranged on the lower portion of the five-way pipe body in a matched mode, limiting assemblies are arranged on the inner side of the upper pressing block and the inner side of the lower supporting block, and the limiting assemblies of the upper pressing block and the limiting assemblies of the lower supporting block are buckled with each other to form fixation for fixing the five-way pipe body. The fixture has the advantages that the clamping frequency of the five-way pipe body is reduced, a plurality of pipe openings can be machined through one-time clamping, and the machining efficiency and the machining precision are improved.

The utility model discloses an automatic particle chain filling device based on a bifurcated pipe. A feeding part comprises a particle feeding mechanism and a spacing rod feeding mechanism; the particles and / or the spacing rods are filled into the particle chain sleeves one by one in a pipeline transportation mode, the pipeline transportation mode is characterized in that the bifurcated pipes are connected with the particle chain sleeves, and the particle feeding mechanism and the spacing rod feeding mechanism are connected with the bifurcated pipes respectively, so that the particles and the spacing rods are filled one by one; and the first push rod is driven by the first push rod driving mechanism to push the particles or the spacing rods into the particle chain sleeve one by one along the conveying channel, and the particles or the spacing rods move forwards along the particle chain sleeve to a required position for automatic filling. The radiation time and labor capacity of operators are greatly reduced, the filling efficiency is improved, the filling accuracy is ensured, and meanwhile, the equipment is simple in structure and convenient to operate and maintain.

The utility model relates to a PE composite pipe with a reinforcing structure. The PE composite pipe comprises an inner pipe, a middle pipe and an outer pipe, the middle pipe is arranged between the inner pipe and the outer pipe, and gaps are reserved between the middle pipe and the inner pipe and between the middle pipe and the outer pipe; a plurality of supporting pieces are installed between the inner pipe and the middle pipe, and every two adjacent supporting pieces are connected with each other. According to the PE composite pipe with the reinforcing structure, through the gap design among the inner pipe, the middle pipe and the outer pipe and the supporting structure of the supporting piece and the supporting pipe, the pipe can bear larger internal pressure and external extrusion, compared with a traditional single-layer or simple multi-layer pipe, the compression resistance of the composite pipe is remarkably improved, and in practical application, the PE composite pipe has the advantages of being simple in structure and convenient to use. And engineering scenes such as municipal water supply and drainage which need to bear higher pressure can be better met, the situations of breakage and leakage of the pipeline due to overhigh pressure are reduced, and the safety and reliability of a pipeline system are improved.

When manufacturing a pipeline that carries an array of electrical cables, insulation resistance monitoring is performed by a monitoring unit that is connected to the cables of the array and is mounted to a leading end of the pipeline. The monitoring unit tests the cables cyclically in succession. Monitoring is performed on the cables after their application to the pipeline and while the pipeline and the cables advance together through further manufacturing processes, such as insertion of the pipeline into the outer pipe of a pipe-in-pipe structure. If a fault is detected in any of the cables, an alert can be raised quickly enough to stop the process and to rectify the fault before the fault is covered and rendered inaccessible. The pipeline and the cables can advance continuously unless a fault is detected.

An insulated joint in a pipe-in-pipe system comprises a weld that connects two inner pipes while respective outer pipes circumferentially enclose the inner pipes and terminate at a position distal from the weld. Respective rings are coupled to the inner pipes at the distal position and the outer pipes are welded to the rings. A joint insulation material covers the weld, and a sleeve segment covers the weld and joint insulation material. Preferably, the sleeve segment is formed from two half-pipe sleeve portions and welded to the rings to so secure the sleeve segment to the joined pipe-in-pipe segments. Contemplated pipe-in-pipe systems have significantly reduced thermal loss and provide strength sufficient for a pipe laying process that includes pipe bending and pipe straightening.