37results about How to "Reduce the difficulty of construction operations" patented technology

The invention discloses a heat insulation pipe shell for an LNG (liquefied natural gas) filling station pipeline. The heat insulation pipe shell for the LNG filling station pipeline comprises a pipe shell body which is of a hollow cylindrical structure; the pipe shell body comprises two half shells which are of consistent structures; the inner surface of each half shell is in wave-shaped arrangement in the axial direction; grooves are formed in the outside ends of the two end surfaces of each half shell; the heat insulation pipe shell also comprises filling strips; the filling strips are of strip-shaped structures which are matched with the grooves in the same side of the two half shells and are in the same sizes as those of the two grooves; locking rings are arranged on the outer surfaces of the filling strips and are connected with rope pieces used for fixedly connecting the two half shells. The heat insulation pipe shell for the LNG filling station pipeline has the beneficial effects that the structure is simple, the operation is convenient, the practicability is high, more heat can be locked and prevented from dissipating, and the heat is insulated effectively; moreover, the radiating area of the heat insulation pipe shell and a conveying pipeline is small, so that high-efficiency heat insulation is further guaranteed; meanwhile, the heat insulation pipe shell for the LNG filling station pipeline is assembled and disassembled conveniently and quickly; the construction operation difficulty is low; the firmness and the reliability are high; the production cost of the heat insulation pipe shell is also low.

A self-anchored pipeline interface structure includes a pipeline body, one end of the pipeline body is a socket end, the socket end of the connected pipeline is inserted into the socket end, and a ball installation port and a ball ball are arranged in sequence from the end face of the socket end. Groove, positioning groove, balls are installed in the ball groove, a rigid ring is arranged on the outer wall of the socket end of the connecting pipe, the ball is located in the cavity between the outer groove wall of the ball groove and the left side of the rigid ring and can be connected with the rigid ring The left corner of the ring is abutted, the positioning groove is located on the right side of the rigid ring, a sealing rubber ring is arranged inside, and the lower side of the end of the socket end opposite to the ball installation port is provided with a corresponding disassembly port, and the ball can pass through the disassembly port After unloading, the rigid ring is welded on the outer wall of the socket end of the connecting pipe. The part to be welded is preferably provided with a chamfer or a welding groove capable of accommodating solder, and preferably a force component groove is formed at the left corner of the rigid ring. The invention further simplifies the operation, unblocks the ball sliding channel, reduces the stress concentration after assembly, and comprehensively improves the construction efficiency and the self-locking and anti-separation sealing effect.

The invention relates to the technical field of immersed tube tunnels, in particular to a barging-out method for a non-self-floating immersed tube. The method comprises the following steps of: submerging the non-self-floating immersed tube along with a semi-submersible barge, twisting and moving a mounting barge to sleeve the non-self-floating immersed tube and then butting the mounting barge with the non-self-floating immersed tube, performing secondary fitting-out operation, providing hoisting force for the non-self-floating immersed tube by using the mounting barge, and then driving the non-self-floating immersed tube to realize barging-out through the twisting and moving mounting barge. Thus, safe barging-out of the non-self-floating immersed tube which cannot automatically float is realized, and a working procedure is simple and rapid. Compared with a traditional mode that the self-floating immersed tube is directly twisted and moved out of a barge, the invention has the advantages that the mounting barge is twisted and moved out of the barge, a mooring winch system does not need to be arranged on the tube top of the non-self-floating immersed tube, tube top outfitting pieces are few, and outfitting operation procedures are few; and compared with a traditional mode that secondary outfitting is conducted after the tube joints of the self-floating immersed tube are unloaded, secondary outfitting operation is conducted on the semi-submersible barge before unloading, so the sequence of the secondary outfitting operation procedures is changed, and in this way, the non-self-floating immersed tube does not need to be moored again after being unloaded, and operation procedures are simplified.

The invention discloses a construction device for concrete pipe piles, which comprises a control fuselage. The upper surface of the control fuselage is respectively fixedly connected with a metal water tank, an operation control room and a rectangular block. The upper surface of the rectangular block is provided with a rectangular mouth, and the inner wall of the rectangular mouth is fixedly connected with a first metal shaft; a construction method for concrete pipe piles, including the following steps; S1, first open the protective door to enter the interior of the operation control room, and start the equipment. The construction device for concrete pipe piles, by setting the first transmission rod, the second transmission rod, the third transmission rod and the pile cutting frame, can make the device do not need multiple tools for auxiliary operation during the construction of concrete pipe piles, and at the same time During construction, labor is reduced to assist in operation, reducing the safety hazard of accidents, so that the device does not require multiple tools to assist in operation, reducing the difficulty of people's construction operations, and at the same time reducing the occurrence of dangerous accidents and avoiding safety accidents.

The invention relates to a method for installing a large tank body. The installation step is to install hoists on the uppermost workshop platform through which the tank body to be installed will pass through. There are at least two hoist machines, which are symmetrically installed on both sides of the tank body to be installed. ; Then pass the traction rope of the winch through the point of stress and let the rope down until it reaches the ground; hoist the tank to be installed in sections from top to bottom: weld the two sides of the first section of the tank at the top One lifting lug, use rigging to fix a section of steel wire rope on the corresponding lifting lug, then connect the steel wire rope to the traction rope of the winch and start hoisting; after the hoisting of each tank body is completed, weld the adjacent two tank body counterparts . The present invention utilizes the existing platform in the workshop to carry out the installation operation, and has the advantages of not using a crane for lifting operations, occupying a small area of ​​the site, not affecting production, low operation difficulty, and high safety factor, and is worthy of popularization and application in metallurgical construction projects.

The invention provides a self-flowing type shock wave spray-explosion deep scarification and deep application operation method suitable for liquid fertilizer, which is characterized in that a self-flowing type shock wave spray-explosion deep scarification and deep application operation system is constructed according to natural landforms, and self-flowing type precise deep application of the liquid fertilizer is realized through the self-flowing type shock wave spray-explosion deep scarification and deep application operation system. The self-flowing type deep application operation system comprises a fertilizer storage device, a fertilizer conveying device, a fertilizer collecting device and a fertilizer deep application channel; and the fertilizer storage device is used for storing liquid fertilizer. According to the method, natural landforms can be well utilized, self-flowing type deep application operation in high mountains or hills and other zones is achieved, a large amount of labor force and complex machines are not needed, high deep application operation cost is not needed either, and the utilization rate of fertilizer is greatly increased.

The invention discloses a construction device for a concrete pipe pile. The construction device comprises a control machine body. A metal water tank, an operation control chamber and a rectangular block are fixedly connected to the upper surface of the control machine body. A rectangular opening is formed in the upper surface of the rectangular block, and a first metal shaft is fixedly connected to the inner wall of the rectangular opening. The invention further provides a construction method for the concrete pipe pile. The construction method for the concrete pipe pile comprises the followingsteps of S1, firstly opening a protective door to enter an operation control room, and starting equipment. According to the construction device for the concrete pipe pile, through the arrangement ofa first transmission rod, a second transmission rod, a third transmission rod and a pile cutting rack, multiple tools are not needed for auxiliary operation when the device is used for constructing the concrete pipe pile, manual auxiliary operation is reduced during construction, and potential safety hazards of accidents are reduced. The device has the advantages that auxiliary operation of the multiple tools is not needed, the construction operation difficulty is reduced for people, dangerous accidents can be reduced, and safety accidents are avoided.

The invention discloses a mid-span jacking method and device for a prestressed concrete box girder continuous rigid frame bridge with long-span and high pier, which comprises a combined I-shaped steel girder, a backing plate, a welded steel plate, a combined H-shaped steel girder, a jack, Stiff skeleton; the combined I-shaped steel beam is welded by two I-shaped steel beams side by side, the combined H-shaped steel beam is welded by two H-shaped steel beams side by side, and the two ends of the box girder are vertical The combined I-shaped steel beams are directly buried, and the buried depth is 1 / 2 of the length of the web. Both sides of the steel mesh are welded to one end of the stiff frame along the longitudinal direction of the bridge, and the opposite stiff frames on both sides are on the same axis. The present invention directly installs the jacking device on the top of the box girder roof and pushes it, which greatly reduces the difficulty of construction operation, and can better ensure the quality of the jacking, the installation is simple and fast, and the preparation time for jacking is saved, thereby shortening the construction period and reducing the cost of construction. small cost.

The construction method of technical transformation of GIS body equipment can reduce the scope of technical transformation power outages, shorten the power outage time and construction period, reduce the amount of equipment disassembly and assembly and the difficulty of construction operations, and reduce the risk of operation safety and quality. Using this construction method can be based on each series of GIS body The components that need to be replaced on the equipment are constructed in different positions, which increases the flexibility and convenience of the GIS transformation work.

The invention discloses a bilateral self-bearing building template system, which has the advantages of material saving, high construction efficiency, good bearing effect and long service life. The system further has the advantages of no pin connection, difficulty in deformation, capabilities of increasing the turnover use efficiency and reducing processing and installing workloads, convenience in early detachment, easiness and convenience in operating, practicability, effective increase in the seam density of a template and improvement on the concrete forming effect. The system comprises support column assemblies (1), bearing beams (2) and bearing plates (3), wherein the bearing beams (2) are connected with the support column assemblies (1) to construct a plurality of single-direction main beams; the bearing plates (3) are distributed among the single-direction main beams, and construct a template system plate surface together with the single-direction main beams; beam lugs (22) are arranged on the lower parts of the side faces (21) of the bearing beams (2); the two ends of the bearing plates (3) are overlapped on the beam lugs (22); two side plates (31, 32) of the bearing plates are provided with plate lugs (311, 321); adjacent bearing plates (3) are matched and overlapped through the plate lugs (311, 321); and the top plates (30) of the bearing plates (3) are flush with the top surfaces (20) of the bearing beams (2). The system can be applied to the field of building templates.

The invention relates to the field of reinforcement of a building foundation and in particular relates to a reinforcement structure of the building foundation. The reinforcement structure comprises astatic pressure pile, a pile head and a cement reinforcing layer. A capacity expansion piece which is thick in the middle and thin in the top and the bottom is fixedly arranged between the static pressure pile and the pile head. The bottom end of the capacity expansion piece is integrated with the pile head and is smoothly connected with the pile head, and the top end of the capacity expansion piece is fixedly connected with the bottom end of the static pressure pile. The maximum cross section of the capacity expansion piece is larger than the cross section of the static pressure pile. The outer side of the static pressure pile is vertically sleeved with a protection tube, and the outer diameter of the protection tube is less than the maximum cross section of the capacity expansion piece.The inner diameter of the protection tube is larger than the cross section of the static pressure pile, so that cement slurry is poured into a cavity between the protection tube and the static pressure pile to form a cement protection layer. The invention further relates to a construction method for reinforcement by using the reinforcement structure. The construction method comprises the steps: after digging a pit, pressing a steel tube and the protection tube into the pit in a sectional type, then pouring the cement slurry into the steel tube and the protection tube, and finally pouring concrete into the reinforcement pit and backfilling to the ground to form a bearing platform. The reinforcement structure has the advantages that the construction operation difficulty is low, and the durability of the static pressure pile is improved.