64results about How to "Save steel" patented technology

The invention provides a temperature stress releasing structure for a super-long steel structure building, the super-long steel structure building comprises a frame structure formed by columns and beams, the temperature stress releasing structure comprises a sliding support assembly arranged between the columns and the beams in the length direction of the frame structure, one end of each beam is in sliding fit with the sliding support assembly, and the other end of each beam is in sliding fit with the sliding support assembly. The other end of the beam is connected with an adjacent steel column, and the sliding support assembly comprises a cylinder in sliding fit with the beam. The material can generate the phenomenon of thermal expansion and cold contraction when the temperature changes, at the high temperature, the material expands and shows tension force, the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes small, at the low temperature, the material shrinks and shows shrinkage force, and the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes large. The internal temperature stress of the material is remarkable, the temperature stress is directly released through the sliding support assembly, the effect is remarkable, more convenience is achieved, and additional operation is not needed.

The embodiment of the invention provides an outer sleeve steel pipe of a high-rigidity thin-wall directly-buried steam thermal insulation pipe, and relates to the technical field of thermal insulation pipes. An outer sleeve steel pipe of a high-rigidity thin-wall directly-buried steam heat preservation pipe comprises a steel pipe body, an adjustable anti-deformation mechanism is installed on the steel pipe body, the adjustable anti-deformation mechanism comprises I-shaped steel, the I-shaped steel is bent into a circle and hooped outside the steel pipe body to form a closed circular ring, and the anti-deformation capacity of the steel pipe body is improved. The I-shaped steel is bent into a circle and then hooped outside the steel pipe body to form a closed circular ring, and a plurality of I-shaped steel rings are uniformly distributed at certain intervals according to requirements, so that the steel pipe body with a relatively thin wall can also have the capability of resisting elliptical deformation of a conventional sleeve with a relatively thick pipe wall, steel can be obviously saved, and huge economic benefits are generated.

The invention relates to the technical field of building construction and steel pipe design and processing, in particular to a manufacturing method of a circular vertical corrugated steel pipe, which comprises the following steps of: pressing a seamless circular steel pipe through an integrated cold-bending roller press which is internally and externally staggered to form vertical corrugations on the seamless circular steel pipe, thereby forming the circular vertical corrugated steel pipe; the vertical corrugations are parallel to the axial direction of the seamless circular steel pipe, and the diameter of the seamless circular steel pipe is larger than that of the circular vertical corrugated steel pipe. The method has the advantages of overcoming the defects of limited bearing capacity, poor corrosion resistance and the like of a circular steel pipe, and being simple in construction, low in manufacturing cost and good in performance.

The invention discloses a deck type arch bridge steel beam hoisting method which comprises the steps that firstly, at least two on-arch hoisting tools are installed on a main arch ring, two winches are started, and the winches vertically hoist steel beam sections, and secondly, jacks are started to pull the winches and the steel beam sections to transversely move; thirdly, the connection between the steel beam section and the winch is removed, the steel beam section is hoisted through a cable crane, a locking piece between the suspension arm and the arch stand column is unscrewed, and the suspension arm is rotated by 90 degrees; and fourthly, the steel beam sections are moved to an assembling platform through a cable crane. According to the deck type arch bridge steel beam hoisting method, vertical hoisting and horizontal transverse moving of the steel beam sections are mainly achieved through the on-arch hoisting tool, horizontal transverse moving can be rapidly achieved, meanwhile, a transverse moving support does not need to be erected in the whole process, steel is saved, the problem that a transverse moving platform is difficult to erect under the complex terrain condition is effectively solved, and in addition, the construction efficiency is improved. And the hoisting speed can be improved, and the construction period is shortened.

The invention relates to the technical field of steel structure engineering construction, in particular to a super-long independent steel column segmented locking type temporary stabilizing device and a construction method thereof, and is suitable for the overall lifting stage of a multi-layer aerial corridor. The device comprises a first locking assembly surrounding a concrete column and providing an X-direction lateral fulcrum; the second locking assembly is fixedly connected to the surface of the steel column to form a force transmission interface; and the connecting conversion assembly connects the steel column and the concrete column into a whole, so that the X-direction load of the steel column is transmitted to the concrete column in sections. The super-long steel columns are temporarily decomposed into short column stress sections with the length not larger than the designed length, and lateral displacement is remarkably restrained. The construction method comprises the steps that the device is installed at the corridor joint, pre-tightening force is synchronously applied, displacement is monitored in real time, overall dismantling is conducted after lifting is completed, and no residue exists after dismantling. The method is not pre-buried and fully recycled, super-long columns are restored to be in a short column stress state, lateral displacement is reduced, steel is saved, the construction period is shortened, green construction and appearance completeness are both considered, and the method is suitable for a large-span corridor overall lifting project.

The automatic power-assisted balancing electric pumping unit is composed of a frame, a bracket, a walking beam, a donkey head, an automatic booster, an automatic balancer, a large open gear and a protective cover, a reducer, a connecting rod, a stroke adjustment structure, an emergency brake, a balancing device, a guide rail, a well repair clearance device, a safety bolt, a brake device, a motor, an electronic controller, and a photovoltaic power generation device. The automatic booster and the automatic balancer are arranged on the walking beam frame, the large open gear and the protective cover, the reducer, and the brake device are arranged on the bracket, the well repair clearance device is arranged on the walking beam donkey head, the connecting rod connects the walking beam and the large open gear width, the emergency brake is installed on the balancing device and matches the guide rail, and the safety bolt is arranged on the guide rail. The electronic controller drives the motor to drive the reducer, the connecting rod, and the walking beam to reciprocate up and down, and drives the automatic booster to pull the booster block to reciprocate. The stroke adjustment and balance are controlled by the electronic controller according to the electrical parameter word. This pumping unit can greatly save electricity, reduce construction cost and maintenance cost, and is more convenient, safe and reliable to use.

The invention relates to the technical field of bearing processing, and discloses a manufacturing method of a radial TC bearing for petroleum drilling, which comprises the following steps: step 1, processing a static ring structure according to a drawing construction standard; secondly, a ball roller hole is machined in the inner side of the annular groove of the static ring structure; thirdly, the lower ends of the ball roller holes are sealed, and then balls or rollers are placed in the ball roller holes; fourthly, after the balls or the rollers are put in, the upper ends of the ball and roller holes are sealed; fifthly, according to the drawing construction standard, a moving coil structure is machined; sixthly, the movable ring structure is sleeved with the static ring structure, and a TC bearing is formed through combination; sliding friction of the hard alloy friction surfaces of the static ring structure and the moving ring structure is changed into rolling friction, friction force of the friction working surfaces is reduced to the maximum extent, the service life of the TC bearing is prolonged to the maximum extent and is prolonged by more than 10 times compared with that of an existing TC bearing, steel for producing the TC bearing is saved, well drilling production efficiency is improved, and production cost is reduced. The production cost is saved.

The utility model discloses a steel bar truss floor support plate which comprises a floor support plate main body, a framework is arranged in the floor support plate main body, the framework comprises a steel plate (1), a group of triangular steel bar supports (2) distributed in a disconnected mode are arranged on the steel plate (1), plate top steel bars (3) are arranged on the upper portions of the triangular steel bar supports (2), and plate bottom steel bars (4) are arranged on the lower portions of the triangular steel bar supports (2). The utility model has the characteristics that the material consumption can be reduced, and the construction workload can be reduced.

The invention discloses a substation frame beam-column connection structure and a design method thereof, comprising a steel tube herringbone column, an inlet and outlet line beam and a busbar beam, wherein the inlet and outlet line beam and the busbar beam are fixedly connected to the steel tube herringbone column; the inlet and outlet line beam and the busbar beam are both triangular cross-section lattice beams; an annular node plate of a steel tube herringbone column and a cantilevered corbel top plate are arranged at the connection node of the steel tube herringbone column, a stiffening plate is arranged below the annular node plate of the steel tube herringbone column, a column top plate is arranged at the top of the steel tube herringbone column, a stiffening plate is arranged below the column top plate, the inlet and outlet line beam is arranged above the busbar beam, the upper chord rod and the lower chord rod of the busbar beam are respectively connected to the steel tube herringbone column; the upper chord rod and the lower chord rod of the inlet and outlet line beam are respectively connected to the steel tube herringbone column. When the frame beam and the steel tube herringbone column are fixedly connected, the column section is correspondingly reduced; the force is evenly applied at the mid-span and the support of the beam; the beam section is reduced, the beam and column can be coordinated to bear force, and the integrity of the frame structure is improved; the column top plate size and the number of stiffening plates are greatly reduced.

A connecting tower for a compact circuit and a conventional circuit comprises a tower body, a right side ground wire cross arm, a left side ground wire cross arm, a left side wire cross arm, a T-shaped jumper cross arm, a right side upper phase wire cross arm, a right side lower phase wire cross arm and an L-shaped jumper cross arm, and the T-shaped jumper cross arm is arranged at the end of the right side ground wire cross arm and the end of the left side wire cross arm. The L-shaped jumper cross arm is arranged at the end part of the lower-phase lead cross arm at the right side; the front portion and the rear portion of the right side upper phase wire cross arm are respectively provided with a first wire tension string hanging point, the front portion and the rear portion of the left side wire cross arm are respectively provided with a second wire tension string hanging point, the rear side of the middle of the tower body is provided with a third wire tension string hanging point, and the rear side of the right side lower phase wire cross arm is provided with a fourth wire tension string hanging point. By utilizing the strain tower, the strain tower shaped like the Chinese character'gan 'of a compact line and a conventional line can be connected, enough electrical safety distance can be kept, steel of the iron tower is reduced, and engineering investment is saved.

The invention discloses a bulk carrier hatch deck structure, which comprises a hatch deck, a topside tank vertical plate is fixedly arranged at the bottom of the hatch deck, a transverse stiffener and a plurality of supporting brackets are also fixedly arranged at the bottom of the hatch deck; a longitudinal bone is arranged between the supporting bracket closest to the topside tank vertical plate and the topside tank vertical plate, the longitudinal bone is fixedly connected to the bottom of the hatch deck, and the end of the transverse stiffener is fixedly connected to the longitudinal bone; no brackets are arranged on the end faces of the topside tank vertical plate. The invention can save steel, reduce structural weight, and reduce costs; it can also reduce the number of components, simplify construction technology, and make construction easier.

The utility model discloses a kind of perforating device of bundled straw biomass fuel, including frame, and frame is provided with perforating device, and perforating device includes linear power mechanism, mounting seat and punch assembly, the end surface of mounting seat is connected with linear power mechanism, and the other end surface is provided with punch assembly;The bottom of frame is provided with the positioning assembly for positioning straw bundle, and linear power mechanism drives punch assembly to carry out punching operation to the straw bundle after positioning. Linear power mechanism includes any one in hydraulic cylinder, cylinder, electric cylinder, and hydraulic cylinder is connected with hydraulic pump group and control valve group, cylinder is equipped with gas source equipment and solenoid valve, electric cylinder is electrically connected with servo driver and controller. The utility model punches in straw bundle, obtains straw bundle with air hole, increases airflow flow in straw bundle, effectively improves the combustion efficiency of whole straw bundle, can effectively reduce the volume and structure of combustion furnace, reduces combustion furnace investment cost.

The invention discloses a steel fiber concrete grid connection node filled with a hollow bolt ball and a manufacturing method thereof, comprising a grid chord, a hollow bolt ball, a high-strength bolt, a single-sided concave sleeve, a grouting hole, steel fiber concrete and the like; the hollow bolt ball is welded by two hollow hemispheres, threaded holes, grouting holes and exhaust holes are arranged on the hollow bolt ball, the high-strength bolt passes through a cone head and a single-sided concave sleeve and is screwed into the threaded hole of the hollow bolt ball; the single-sided concave sleeve and the high-strength bolt are connected by a pin; the high-strength bolt is driven to rotate by rotating the single-sided concave sleeve and is screwed into the threaded hole of the hollow bolt ball; the grouting pipe and the exhaust pipe end are provided with external threads and are tightened on the hollow bolt ball, the grouting pipe is provided with a switch valve, and the exhaust pipe outlet height exceeds the highest position of the spherical surface; the steel fiber concrete is filled in the hollow bolt ball through the grouting hole through the grouting pipe, the grouting is stopped after the concrete overflows from the exhaust pipe, and the grouting pipe valve is closed.

The utility model discloses a road photovoltaic device, which belongs to the technical field of road photovoltaic devices and comprises support columns arranged on two sides of a road and distributed along a first direction. The main trusses are arranged on the two sides of the road and connected to the tops of the support stand columns; the secondary trusses stretch across the road and are distributed in the first direction, and the two ends of the secondary trusses are connected to the support stand columns or the primary trusses; the auxiliary part stretches across the road and is arranged below the secondary truss, and the two ends of the auxiliary part are connected to a lower chord of the secondary truss; the purlines are distributed in the second direction and connected to the upper chord members of the secondary trusses or the main trusses; the photovoltaic roof is formed by distributing the photovoltaic assemblies in the first direction and the second direction in an array mode, the photovoltaic roof is supported by the primary truss and the secondary truss, the auxiliary parts are arranged below the secondary truss, the bearing capacity and stability of the secondary truss are enhanced, a space type truss supporting structure is formed, the number of stand columns of a support can be effectively reduced, and the large-span requirement is met.

The invention relates to the technical field of steel structures, and discloses a hollow Y-shaped variable cross-section box-shaped column shaped like a Chinese character'Ya 'and a construction technology thereof.The box-shaped column comprises a box-shaped column shaped like a Chinese character'Ya', a Y-shaped box body section and a crotch bracket, the extending end of a main shaft of the Y-shaped box body section is connected with the box-shaped column shaped like a Chinese character'Ya ', and the middle of the Y-shaped box body section is trilateral hollow. The inner ring wing plate and the web plate are assembled and welded; hollowed-out web plates on the two sides of the Y-shaped box body section body are assembled and welded with the transverse partition plates and the longitudinal rib plates; the I-shaped arc is assembled and welded with the inner ring wing plate and the web plate; the box-type bracket side plates and the transverse partition plates are assembled and welded; the box-type bracket is assembled and welded; the T-shaped box column is in butt welding with the Y-shaped box body section; and assembling and welding the crotch corbel. The box type steel columns shaped like the Chinese character'Ya 'and the Y-shaped joints are adopted for combined supporting force, the overall stability and stress of the conversion joints are improved through the hollowed-out triangular reinforcing plates, and the device has the advantages of being large in stress, reasonable in force transmission, stable in structure, novel in modeling, capable of saving steel and the like.

The utility model discloses a wall saw with teeth on two sides, which belongs to the technical field of wall saws and comprises a handle and a saw blade, a clamping groove is arranged inside the handle, a clamping block is arranged at the top of the saw blade, the saw blade is wide in top and narrow in bottom, and saw teeth are arranged on two sides of the saw blade. The two-sided teeth are the same in size and are matched with the saw blade with the wide top and the narrow bottom, the lower narrow saw blade is small in labor and can be quickly inserted into the gypsum board, the saw cannot be clamped when all the saw blades are inserted, and after the saw blades are inserted into the wall gypsum board, the saw teeth on the two sides can simultaneously work in a labor-consuming mode, convenience is achieved, and the working efficiency is greatly improved; through the arrangement of the clamping blocks, the clamping grooves and the through holes, the firmness is higher; the handle is provided with the circular ring hollow design, materials are saved, the wall saw is convenient to fold and hang, and the anti-skidding groove enables the wall saw to be anti-skidding in use.

The utility model discloses an assembly solid web type guide beam which comprises a tail standard knot, a middle standard knot and an end standard knot, the tail standard knot is connected with a steel structure bridge, the middle standard knot is connected with the tail standard knot, and the end standard knot is connected with the middle standard knot. Limiting pieces are arranged on the tail standard section, positioning pieces are arranged on the steel structure bridge, the positioning pieces correspond to the limiting pieces in a one-to-one mode, the limiting pieces are positioned through the positioning pieces, and therefore positioning installation between the tail standard section and the steel structure bridge is achieved. The tail standard knot consists of three sections of standard knots, can be hoisted in sections and installed in place according to the size of an operation space during actual installation, is wide in application range, realizes accurate in-place of the tail standard knot through the matching of the limiting piece and the positioning piece when the tail standard knot is spliced with a steel structure bridge, and is convenient to use. The middle standard knots and the end standard knots are accurately hoisted in place through the lower limiting device, so that the stress of the guide beam is more reasonable, and the actual construction efficiency is also greatly improved.

The present invention discloses an assembled large-span cold-bent solid arch structure, including a rigid arch unit, a dense tie rod connection unit, and a non-dense tie rod connection unit. The rigid arch unit, the dense tie rod connection unit, and the non-dense tie rod connection unit are all made of steel. The dense tie rod connection unit and the non-dense tie rod connection unit connect the rigid arch unit to an integral structure through a specific connection node, and are all bolted during on-site installation. The present invention is an assembled structure, with no welding at the construction site, a short construction period, and easy control of construction quality; the structure is an arch structure, with clear force transmission, fewer components, small structural deadweight, large spanning capacity, saving steel, and high space utilization; there are few dead angles in the components, the workload of secondary rust removal and anti-corrosion is small, and the rust removal quality is easy to control, which has practical significance and good application prospects.

The utility model provides an auxiliary fixing structure for large-span plain concrete constructional reinforcing steel bars, which relates to the technical field of concrete construction and comprises two groups of steel templates, a plurality of concrete cushion blocks are arranged on the two groups of steel templates, and constructional reinforcing steel bar meshes are arranged on two sides of the two groups of steel templates. Vertical steel bar supports are arranged on the outer sides of the constructional steel bar meshes, the same base plate is arranged on the tops of the two sets of steel formworks, a plurality of concrete blocks are arranged on the top of the base plate, and the same transverse top steel bar beam is arranged between every two opposite concrete blocks. A plurality of longitudinal top steel bar beams are longitudinally arranged among the transverse top steel bar beams, and diagonal bracing steel bar supports are arranged on one side of the vertical steel bar supports and one side of the transverse top steel bar beams. The reinforcing steel bar auxiliary fixing structure increases the connection firmness of the steel formwork, is simple in structure, uses less steel, is convenient to construct, and saves cost.

The utility model discloses a light solid web combination column for a steel structure single-layer industrial plant roof, which is fixed on an existing structural column by welding and comprises channel steel, a web, a connecting plate and stiffening plates, the two sides of the web are connected with the channel steel, the stiffening plates are fixed at a beam column connecting node and the two sides of the web, the connecting plate is fixed on the outer side of the channel steel, and the connecting plate is fixed on the outer side of the web. And the connecting plate is used for connecting a steel structure roof truss. The light solid-web combined column is fully combined with field practice, and has the advantages of being good in mechanical property, saving steel, being light, guaranteeing factory prefabrication completion quality and the like; the method is particularly suitable for heightening construction of the latticed column with the section width consistent with the width of the channel steel, so that the combined column and the latticed column of the original structure are better welded and connected; the finished product of the combination column can be prefabricated by a manufacturer, the quality of the finished product is ensured, components with suitable specifications are selected according to the size of the steel structure column on site, on-site installation and use are facilitated, the number of parts needing on-site welding is small, the construction efficiency is high, and the construction quality qualification rate is high.

The present invention provides a thin-walled large-diameter single pile-barrel composite pile foundation and an installation method thereof, comprising an outer barrel foundation and a thin-walled variable-section single pile foundation located in the middle of the outer barrel foundation, the thin-walled variable-section single pile foundation comprising an upper foundation and a lower foundation, the diameter of the upper foundation is smaller than the lower foundation, a plurality of annular plates are arranged at intervals from top to bottom on the inner side of the upper foundation, a plurality of vertical ribs are evenly arranged between the outer wall of the annular plate and the inner wall of the upper foundation, a plurality of annular reinforcement beams are arranged circumferentially on the outer side of the lower foundation, and Y-shaped reinforcement ribs are arranged between adjacent annular reinforcement beams. The present invention is reasonably designed, and can provide higher bearing capacity and rigidity than traditional single pile foundations, and can be used as a foundation form for larger wind turbine power; in terms of specific structure, the wall thickness of the same foundation is optimized, which not only ensures structural strength but also saves steel, and has good economy; it is connected to the outer barrel foundation by grouting, which can significantly improve its bearing performance.

The utility model provides a precast concrete tower tube segment mold which is composed of an upper fixing plate, a lower fixing plate, an inner side vertical strip-shaped steel plate, an outer side vertical strip-shaped steel plate, sealing cloth, an inner side end vertical strip-shaped steel plate and a vertical end sealing steel plate. The upper fixing plate and the lower fixing plate are respectively provided with a fixing groove, an inner side end vertical strip-shaped steel plate fixing groove and a vertical end closed steel plate fixing groove; the upper fixing plate and the lower fixing plate are connected through the inner side vertical strip-shaped steel plate, the outer side vertical strip-shaped steel plate, the inner side end vertical strip-shaped steel plate and the vertical end sealing steel plate. The mold can be recycled; the upper fixing plate and the lower fixing plate can be shared as required, so that the effect of saving steel is achieved; and the distance between the vertical strip-shaped steel plates in the mold is sealed by high-elasticity PVC sealing cloth, so that the steel consumption of each tower section mold is reduced, and the mold cost is saved.

The utility model discloses a prestressed prefabricated steel part concrete-coated latticed column. The prestressed prefabricated steel part concrete-coated latticed column comprises I-shaped steel, prestressed tendons, lacing bars, concrete, stirrups, longitudinal bars, bolts and the like, wherein the prestressed profile steel coated concrete column limb is prefabricated and formed in a factory, and lacing bars are connected only through reserved bolt holes on a construction site. In order to guarantee good combination between the concrete and the profile steel, a reinforcement cage bound by longitudinal bars and stirrup plates is arranged beside the profile steel, and prestressed tendons are pre-embedded in the reinforcement cage in advance by adopting a pre-tensioning method, the profile steel is combined with the concrete, and the prestressed tendons are pre-embedded in the profile steel, so that the bearing capacity and the rigidity of the section are greatly improved; the device can be flexibly used in a single-layer industrial factory building; in addition, the concrete provides out-of-plane support for the profile steel plate, the profile steel plate provides constraint for the concrete, the concrete and the profile steel plate complement each other, and compared with a pure steel structure and a concrete structure, the fire resistance, the durability and the anti-seismic property are effectively improved.

The invention discloses a method for splicing large-scale industrial module equipment, belongs to the technical field of large-scale industrial module construction, and aims to solve the problems of low splicing precision, poor quality control, weak tool universality and the like in the prior art. The method comprises the steps of module early-stage preparation, construction site arrangement, module hoisting and positioning, module splicing operation, quality inspection and acceptance, digital filing and the like. A module full life cycle database is established, a high-precision measurement control network is constructed, and an adjustable universal supporting tool and intelligent equipment are adopted, so that high-precision splicing of module butt joint unfitness smaller than or equal to 0.5 mm is achieved; bIM simulation, real-time monitoring and automatic welding technologies are combined, so that the defect rate of the welding seam is reduced to 1% or below. The device can adapt to heavy modules of 50-500 tons and 10-50 meters, the tool cost is reduced by 60% or above, the construction period is shortened by 40% or above, and the device is suitable for the high-precision requirement fields of the nuclear industry, the petrochemical industry and the like.

The utility model discloses a novel prestress anti-crack laminated slab which comprises a prefabricated bottom plate, a plurality of first longitudinal bars and first transverse bars are evenly arranged in the prefabricated bottom plate, and the novel prestress anti-crack laminated slab further comprises prestress steel bars which are evenly arranged in the prefabricated bottom plate and parallel to the first longitudinal bars. The external net rack is connected to the upper end of the prefabricated bottom plate and comprises a plurality of support ribs connected with the prefabricated bottom plate in an anchoring mode, the support ribs are longitudinally distributed in multiple columns, the upper ends of the support ribs are connected with second longitudinal ribs, the support ribs are transversely distributed in multiple columns, and the upper ends of the support ribs are connected with second transverse ribs; the support ribs are connected between every two adjacent first longitudinal ribs through clamping assemblies. The rigidity of the laminated slab is enhanced by arranging the prestressed steel bars, and the laminated slab is prevented from cracking; through the arrangement of the external net rack, the external net rack can serve as a part of support negative reinforcements of the prefabricated bottom plate, the rigidity of the prefabricated bottom plate during assembly is enhanced, the large-span requirement is met, an upper-layer truss does not need to be arranged, and steel bars and cost are saved.

The utility model relates to flue gas treatment field of atmospheric pollution control industry, concretely relates to a desulfurization dust removal denitration integrated equipment. The desulfurization dust removal denitration integrated equipment includes: support separation structure, which separates desulfurization dust removal denitration integrated equipment into three layers of upper, middle and lower in vertical direction, separates into middle area and peripheral area in horizontal direction, denitration chamber is arranged in middle layer middle area, exhaust port is arranged in middle layer middle area, below denitration chamber, air inlet is arranged in lower layer middle area, below exhaust port, N desulfurization filter chambers are symmetrically arranged in middle layer peripheral area, peripheral of denitration chamber and exhaust port, S ash bucket is arranged in lower layer peripheral area, upper box gas chamber is arranged in upper layer area, and N desulfurization filter chambers of the peripheral area and denitration chamber of middle area are communicated. The utility model discloses desulfurization dust removal denitration integrated equipment, and the land area is small, and the investment is saved.

The invention discloses a large-span prestressed concrete holed beam frame structure system reinforced by section steel and a design method thereof. The large-span prestressed concrete holed beam frame structure system comprises a prestressed concrete beam, prestressed tendons, common full-length reinforcing steel bars, the section steel for reinforcing a hole, hole upper and lower chord stirrups, hole upper and lower chord angle ribs, stirrups on the side edge of the hole and reinforcing inclined ribs on the side edge of the hole. Wherein the profile steel and the upper and lower chord angle ribs of the hole are mainly used for supplementing the loss of strength and rigidity of concrete caused by hole opening, and the stirrups and the inclined ribs on the side edges of the hole are used for bearing shear force transmission of a concrete beam. By adopting the reinforcing measures to reinforce the hole, the site construction is convenient and quick, the component mounting efficiency is improved, the use amount of reinforcing steel bars can be greatly reduced, the congestion of the reinforcing steel bars in a core area is avoided, the section height of the component can be reduced, the self weight is reduced, and the anti-cracking performance and the bearing capacity of the component are improved, so that the anti-seismic performance of the whole frame structure is improved.

The application relates to a ceiling assembly structure comprehensive system and relates to the technical field of building decoration, which comprises a plurality of connecting rod units and a conversion layer; one end of the plurality of connecting rod units is used for being connected with a roof beam of a wall top surface; the conversion layer is connected with the other end of the plurality of connecting rod units; the conversion layer has a cavity; the bottom surface of the conversion layer is provided with a plurality of ceiling surface layers; a first opening is formed between two ceiling surface layers; the top of the conversion layer is provided with a plurality of second openings; and the second openings are used for being communicated with smoke exhaust ports of the wall top surface. The conversion layer can be used for maintenance personnel to maintain the ceiling surface layer; secondly, when a fire occurs, smoke can pass through the plurality of first openings, the cavity and the plurality of second openings in sequence and be exhausted from the smoke exhaust ports of the wall top surface, so that fire safety is ensured; in addition, sound-absorbing panels absorb indoor noise, and when a high hall or the like is designed, the sound-absorbing panels can eliminate echo in a closed space and achieve ideal acoustic effects.

The utility model discloses a large-span road photovoltaic, which belongs to the technical field of road photovoltaics and comprises a primary truss, a secondary truss and a secondary truss, the secondary trusses are connected between the lower chords of the two adjacent primary trusses and are distributed in the second direction; the stand columns are arranged on the two sides of the road and distributed in the first direction. The starting end of the forking part is connected to the stand column, and the tail end is connected to a lower chord of the main truss; the main purlins are connected to the upper chord members of the main trusses and distributed in the second direction; the secondary purlins are connected to the primary purlins and distributed in the first direction; the photovoltaic roof is formed by distributing photovoltaic assemblies in an array mode in the first direction and the second direction, the photovoltaic assemblies are connected to the secondary purlins, the forking parts and the stand columns form a crotch-shaped supporting structure, the span of the primary truss in the first direction and the second direction is increased, the number of the arranged stand columns is reduced, steel is saved, and the driving view is widened. And branch road intersections of the road can be flexibly avoided.

This invention discloses a photovoltaic device and a photovoltaic system. The photovoltaic device includes a photovoltaic bracket, a support assembly, and a photovoltaic module. The photovoltaic bracket includes a mounting frame, a support rod, and a base. The support rod extends vertically and its upper end is connected to the mounting frame. The base is a concrete base, and the lower end of the support rod passes through the base, which is connected to the support rod. The support assembly includes a first rod, a second rod, and a clamp. The clamp is mounted on the base and detachably connected to it. The two ends of the first rod are connected to one side of the clamp and one side of the mounting frame, respectively. The two ends of the second rod are connected to the other side of the clamp and the other side of the mounting frame, respectively. The photovoltaic module is installed in the mounting frame using fasteners. The photovoltaic module is used to generate electricity using solar energy. The photovoltaic device of this invention has advantages such as simple structure and long service life.