6741 results about "Steel frame" patented technology

The embodiment of the invention discloses a numerical optimization method and device considering bearing capacity of a steel frame and a concrete precast slab, equipment and a medium. The method comprises the following steps: acquiring geometric parameters, material attributes and connection parameters between the steel frame and the concrete precast slab corresponding to the steel frame and the concrete precast slab respectively, constructing a geometric model based on the geometric parameters, performing finite element mesh division, assigning the material attributes and the connection parameters to generate a finite element model, and performing finite element mesh division on the finite element model; static load analysis and dynamic load analysis are conducted on the finite element model to obtain bearing capacity response, continuous optimization is conducted by changing set parameters, material attributes and connection parameters, the influence of different parameters on the bearing capacity is analyzed, an optimal parameter combination is found, the bearing capacity is maximized, and the bearing capacity is improved. Marking stress concentration and weak areas based on the optimal parameter combination; according to the technical scheme, the accuracy of the steel frame-concrete prefabricated slab model can be improved, and the effectiveness and efficiency of parameter optimization on stress concentration and weak areas are improved.

A bilateral expanding excavation construction method for a middle pilot tunnel of a tunnel is provided. Section or excavation width of the middle pilot tunnel is generally not larger than that of a common double-line or double-lane tunnel; a step construction method is adopted, and the construction method is the same as that of a common double-line or double-lane tunnel; and the construction method is familiar to constructors, and the construction difficulty is avoided. A primary support section of the middle pilot tunnel can be expanded and excavated after being closed by at least 3 meters; if a side tunnel face is stable, and the problem of the operation height of manual installation of a steel frame and an anchor rod is solved, one-time excavation and support can be achieved, and the construction is more convenient; or otherwise, a side tunnel is excavated according to a two-step or three-step method. The primary support of the middle pilot tunnel can be timely closed; the primary support of the side tunnel and the primary support of the middle pilot tunnel can be completely connected in sequence, and various errors and deformation influences of surrounding rocks and the supportare left at an inverted arch part for treatment; and the construction progress is basically the same as that of the common double-line or double-lane tunnel.

The invention discloses a rice machine steel frame automatic welding method based on machine vision. The rice machine steel frame automatic welding method comprises the steps that S1, original image data are obtained; s2, performing denoising and gray scale standardization processing on the original image data to generate an enhanced image; s3, generating a weld joint candidate region image, a weld joint structure description vector and a stress weighted region image based on the three-dimensional CAD assembly model and the enhanced image; s4, a welding seam track generation model is constructed through the multi-mode pruning attention network, and a continuous three-dimensional welding track is generated; s5, dynamic feasibility verification and welding gun posture planning are carried out on the continuous three-dimensional welding track; s6, discretizing the verified three-dimensional welding track to generate a discrete track point sequence; s7, the discrete track point sequence is bound with welding parameters, and a linkage execution instruction set is generated; and S8, the linkage execution instruction set is sent to a welding control unit, real-time welding state data are collected, and closed-loop control over the welding process is completed. According to the invention, the executability and stability of the welding path are enhanced.

The invention provides a tunnel prestress self-adaptive yielding steel frame and a construction method, and belongs to the technical field of tunnel engineering.The tunnel prestress self-adaptive yielding steel frame comprises supporting frame bodies and adaptive structures, and every two adjacent supporting frame bodies are connected through the adaptive structures; the adaptive structure comprises a prestress device and a yielding device which are connected in sequence, and the prestress device comprises a prestress releasing structure which tends to extend in the length direction of the prestress device; the yielding device comprises a yielding supporting structure which tends to bend in the length direction of the yielding device. The pre-applied stress of the pre-stress releasing structure is smaller than the yielding initial force of the yielding supporting structure. According to the tunnel prestress self-adaptive yielding steel frame, supporting force is applied to surrounding rock through releasing of the prestress releasing structure, and active supporting force is formed; the surrounding rock pressure is borne by using the compression deformation of the yielding supporting structure and the retraction of the prestress releasing and tensioning structure; effective combination of the prestress device and the yielding device is achieved, and the stability of the supporting structure is improved.

The invention relates to the technical field of box girder reinforcement framework machining, in particular to a bottom web stirrup integrated machining single-machine-head bending device and a forming method of the bottom web stirrup integrated machining single-machine-head bending device. The bending device comprises a straightening mechanism, a feeding and bending mechanism, a transferring mechanism, a welding device and a discharging mechanism. The straightening mechanism comprises a steel bar straightening machine; the feeding and bending mechanism comprises a bending platform, a bending head is arranged in the center of the bending platform, and a steel bar traction device is arranged between the bending head and the straightening mechanism. A reinforcing steel bar cutting device is further arranged between the bending head and the reinforcing steel bar traction device; a regular pushing device is arranged on one side of the bending platform; the transfer mechanism comprises a transfer gripper; the welding device is used for welding the stirrup meshes into an integrated structure; and the discharging mechanism comprises a discharging gripper. According to the bending device, all construction processes for producing the stirrup meshes are smoothly joined, the stirrup mesh bending operation is more efficient, the operation intensity of constructors can be reduced, and the production efficiency of the bottom web stirrup meshes is improved.

The invention belongs to the technical field of transmission tower accessory machining, and discloses a machining stamping device and method for transmission tower angle steel. The machining and punching device for the angle steel of the power transmission tower comprises a punching machine, a steel walking frame is arranged on one side of the punching machine, a lifting compression roller assembly and a lower driving roller assembly which are arranged in parallel up and down are installed on the steel walking frame, a concentric-square-shaped frame is fixedly installed on the side, away from the punching machine, of the steel walking frame, and a plurality of carrier rollers are rotationally installed at the top end of the concentric-square-shaped frame; elastic stress application type swing arm assemblies are installed on the front edge and the rear edge of the top end of the frame shaped like the Chinese character'hui ', and abrasive belt grinding assemblies are installed on the sides, close to the vertical center datum plane of the frame shaped like the Chinese character'hui', of the elastic stress application type swing arm assemblies. The L-shaped angle steel obtained after stamping is completed is conveyed to the multiple carrier rollers through cooperation of the lifting pressing roller assembly and the lower driving roller assembly, and the outer wall face of the L-shaped angle steel is subjected to deburring and grinding operation through the abrasive belt grinding assembly.

The invention discloses a pre-embedded latticed column dynamic aligning and straightening device and a construction method thereof, the device comprises an adjusting mechanism, a locking piece and a supporting steel frame installed on the ground, the supporting steel frame surrounds the periphery of a latticed column, and a composite sensing system is further arranged at the top of the latticed column; wherein one end of the supporting steel frame is arranged in the movable platform in a sleeved mode, the supporting steel frame and the latticed columns are provided with mutually-corresponding preset hole positions for the locking pieces to penetrate through, the adjusting mechanism comprises a plurality of telescopic pieces extending in the vertical direction and the horizontal direction, one end of each telescopic piece extending in the horizontal direction makes contact with the supporting steel frame, and the other end of each telescopic piece makes contact with the latticed columns. The fixed end of the telescopic piece extending in the vertical direction is arranged on the movable platform, and the movable end of the telescopic piece is in contact with the supporting steel frame. According to the method, the straightening efficiency is improved, the couple unbalance and welding seam cracking risks of multi-equipment cooperative adjustment are reduced, a real-time feedback closed-loop control mechanism is formed, and the problem of manual reading error accumulation is avoided.

The invention provides a conveying platform for internal parts of a compact fusion reactor and a using method of the conveying platform, and belongs to the field of transportation of the internal parts of the fusion reactor. Vacuum outdoor transportation parts of the conveying platform comprise a supporting steel frame assembly, a transportation track assembly, a transportation trolley assembly and a mobile crane assembly, and the supporting steel frame assembly comprises a cage-shaped steel frame; one section of the transportation track assembly is straightly installed in the building channel, the other sections of the transportation track assembly are straightly located in the cage-shaped steel frame and extend to a window in the vacuum chamber, and the movable crane assembly and the transportation trolley are sequentially located on the transportation track assembly. The cable-stayed hanger rail component comprises cable-stayed rods, a bearing steel beam and an annular hanger rail, the cable-stayed rods are installed at the upper end of the regular polygon-shaped frame in an annular array mode, one end of each cable-stayed rod is connected with the upper window collar of the vacuum chamber, and the other end of each cable-stayed rod is connected with the bearing steel beam of the frame. According to the invention, after internal parts on the equatorial plane of the vacuum chamber are quickly conveyed, the internal parts can be conveyed through simple adjustment.

The invention discloses an adjusting and mounting system for a hyperbolic single curved arc-shaped suspended ceiling and a construction method thereof.The adjusting and mounting system comprises a roof main steel structure, a transfer layer structure and a hyperbolic suspended ceiling, and the transfer layer structure comprises a hanging steel frame, a forward adjusting main keel, a hanging auxiliary keel, a keel posture adjusting assembly and a suspended ceiling hanging adjusting assembly; the two ends of the adjacent keel sections and the bottom ends of the hanging rods are adjustably connected through the keel posture adjusting assemblies, the suspended ceiling hanging adjusting assemblies are longitudinally arranged corresponding to the hanging secondary keels, the suspended ceiling hanging adjusting assemblies are transversely arranged corresponding to the suspended ceiling plate sections, and the tops of the suspended ceiling hanging adjusting assemblies are connected to the corresponding hanging secondary keels in a buckled mode. According to the method, the equal-plate unequal-joint mode is adopted, the width of the suspended ceiling plate is a fixed value, the hyperboloid is adjusted by controlling the posture of the suspended ceiling plate and the width of the plate joint, variable cross-section welding machining does not need to be conducted on the arc-shaped suspended ceiling plate, the overall hyperboloid curvature of the arc-shaped hyperboloid suspended ceiling is guaranteed, batch production is conducted on the plate, and the construction quality is guaranteed.

A grating steel frame assembling apparatus having adjusting and locating functions, comprising a machining platform (1), wherein locating slide slots (33) are formed in the machining platform (1), the locating slide slots run through the machining platform, vertical plates (12) are respectively arranged at two ends of the machining platform, and the two vertical plates are both fixedly connected to the machining platform and are parallel to each other; and hydraulic cylinder telescopic devices (2), wherein two hydraulic cylinder telescopic devices are provided and are respectively located at two ends of the machining platform, and each hydraulic cylinder telescopic device comprises a telescopic plate (25), a fixing clamp (24), and limiting clamping plates (26). The hydraulic cylinder telescopic devices and locating devices (3) are arranged on the machining platform and are respectively used for supporting and limiting workpieces to be bent; workpieces are placed on one side of limiting clamping notches (261) and locating clamps (32), so as to limit the workpieces; in each hydraulic cylinder telescopic device, a hydraulic cylinder drives the fixing clamp to slide on the machining platform to apply a force to one end of each workpiece. The apparatus can satisfy the machining requirements for different workpiece sizes, and improve the workpiece welding efficiency and fixing precision.

An assembly of parts for a structural moment connection includes a first connecting component and a second connecting component. The first connecting component is configured to be connected to a first structural frame member. The second connecting component is configured to be connected to a second structural frame member. The first connecting component includes an elongated protrusion. The second connecting component includes a body having an elongated cavity extending inside of the body from a side surface of the body. The elongated protrusion is configured to be received in the elongated cavity such that the first connecting component and the second connecting component produce a moment connection between the first structural frame member and the second structural frame member when the elongated protrusion is received in the elongated cavity.

The invention discloses a self-loading and unloading type diesel generating set structure, and belongs to the technical field of diesel generating sets, the self-loading and unloading type diesel generating set structure comprises a case for installing a diesel generator component, a rack is fixedly installed outside the case, and supporting steel frames are fixedly installed at four corners of the rack; an upper pull rod and a lower pull rod are sequentially and rotationally connected into the supporting steel frame from top to bottom, rectangular columns are rotationally connected to the sides of the upper pull rod and the lower pull rod, the upper pull rod and the lower pull rod are arranged on the supporting steel frame, the inclination between the rectangular columns is the same, and supporting vertical rods are slidably arranged in the rectangular columns in a sleeved mode. A supporting mechanism for keeping the lifting, loading and unloading balance of the case is arranged between the supporting vertical rod and the rectangular column, and the supporting vertical rod lifts to adjust and control the supporting mechanism to automatically stretch and fold for storage; the case can be supported and buffered in the lifting loading and unloading process through the supporting mechanism, the case can stably fall to the ground, loading and unloading vibration of the case is avoided, and the service life of the case is prolonged.

The invention discloses a tunnel lining steel frame recognition method based on GAR-Net and related equipment, spatial domain enhancement is performed on geological radar data to improve the robustness of a neural network structure, a GAR-Net network model is constructed, the network model comprises a mileage recognition model, a lining thickness recognition model and a steel arch recognition model, and the mileage recognition model, the lining thickness recognition model and the steel arch recognition model are used for recognizing a tunnel lining steel frame. The lining thickness recognition model and the steel arch recognition model perform lining thickness recognition and steel arch recognition on the basis of the mileage recognition model respectively, whether a tunnel lining steel frame has defects or not can be judged according to the lining thickness and positioning information of the tunnel steel arch, and the defects of traditional radar image interpretation are overcome. The method can achieve the automatic recognition of the tunnel steel arch and lining thickness, and remarkably improves the precision and recognition efficiency of the automatic recognition of a geological radar image.

The utility model discloses a liquid cooling heat dissipation and multifunctional integrated energy storage integrated cabinet system, which comprises a cabinet body system, an electrical system, a liquid cooling system and a battery pack, the cabinet system body is composed of a steel frame and an external skin, and the steel frame is composed of a bearing beam, a first unit fixing beam, a second unit fixing beam, a first PCS fixing beam, a second PCS fixing beam, an electrical panel fixing beam, a high-voltage box fixing beam and a battery pack fixing beam. The first unit fixing beam, the second unit fixing beam, the first PCS fixing beam and the second PCS fixing beam are fixed in a control cabin of the steel frame, and the electrical panel fixing beam, the high-voltage box fixing beam and the battery pack fixing beam are fixed in a battery cabin of the steel frame; the electrical system comprises a water cooling unit, a unit bracket, a first PCS support, an energy storage converter PCS, a second PCS support, a fire-fighting detector, an air switch, an electrical panel, an energy management system EMS, a high-voltage box, a high-voltage box support and an electronic display screen, and the water cooling unit is fixed to the second unit fixing beam through the unit bracket. An energy storage converter PCS is fixed with a first PCS fixing beam and a second PCS fixing beam through a first PCS support and a second PCS support respectively, a fire-fighting detector and an air switch are fixed with an electrical panel fixing beam through an electrical panel, an energy management system EMS and an electronic display screen are fixed with a battery compartment cabinet door, and a high-voltage box is fixed with a high-voltage box fixing beam through a high-voltage box support. The liquid cooling system comprises a first water cooling adapter, a second water cooling adapter, a first rubber pipe, a second rubber pipe, a first metal pipe, a second metal pipe, a third water cooling adapter and a fourth water cooling adapter, the first water cooling adapter is fixed to a water outlet pipe opening of the water cooling unit, and the second water cooling adapter is fixed to a water inlet pipe opening of the water cooling unit. The first rubber pipe and the second rubber pipe are connected with the first water-cooling adapter pipe and the second water-cooling adapter pipe respectively, the first metal pipe and the second metal pipe are connected with the first rubber pipe and the second rubber pipe respectively, the third water-cooling adapter pipe is connected with the first metal pipe, and the quick-insertion end of the third water-cooling adapter pipe is connected into a water inlet pipe opening of the battery pack. The fourth water-cooling transfer pipe is connected with the second metal pipe, and the quick-insertion end of the fourth water-cooling transfer pipe is connected into a water outlet pipe opening of the battery pack. According to the liquid cooling heat dissipation and multifunctional integrated energy storage integrated cabinet system, the temperature in the energy storage system is controlled in the optimal temperature region of lithium battery operation through the thermal management design, the risks of battery life attenuation and thermal runaway are reduced, and continuous and safe operation of the energy storage system is ensured.

The utility model relates to a high-performance sealed viscous damping wall, and belongs to the technical field of civil engineering structures. Comprising steel frames, gapless spherical hinges, bushings, piston rods, pistons, oil cylinders, extension pipes, experiment connecting holes, shells, lug plates and embedded parts, the steel frames are arranged on the left side and the right side of the high-performance sealed viscous damping wall, the inner sides of the steel frames are symmetrically and fixedly connected with two or more sets of gapless spherical hinges, and viscous dampers are arranged between every two sets of gapless spherical hinges. The viscous damping wall has the beneficial effects and advantages that the viscous damping wall adopts a completely sealed structure, so that the pollution of silicone oil is avoided, and the durability of a product is ensured; the damping wall is easy to install on site, and the damping wall can be rotationally and obliquely installed according to the actual situation on site; an experiment table connecting hole is formed in the steel frame side plate, so that the non-destructive experiment of the viscous damping wall is realized; and the multiple groups of viscous dampers are connected with the steel frame through the gapless spherical hinges, so that the good cooperative work performance is achieved.

The invention discloses a tunnel construction method for a large deformation section of soft rock, and relates to the technical field of tunnel construction for the large deformation section of the soft rock, and the tunnel construction method for the large deformation section of the soft rock comprises the following steps: drilling shallow large-aperture stress release holes and deep small-aperture stress release holes to form a layered release system; differential pressure grouting is conducted around the stress release holes, and a deep reinforcing ring and a shallow coupling ring are formed; a steel frame is erected, and a three-stage stretching locking bottom supporting assembly is installed to form a closed supporting ring; the bottoms of the adjacent steel frames are crossly connected through prestressed pull rods to form an integral rigid grid; a secondary lining is constructed after the longitudinal attenuation conduction period is judged according to the surrounding rock deformation spatial-temporal characteristics; inverted arch first and then arch wall segmented pouring is adopted, and a delayed expanding agent is doped into arch wall concrete. The method can effectively control surrounding rock deformation in the tunnel construction process of the large deformation section of the soft rock, improves the overall rigidity and stability of a supporting system, ensures that the lining is tightly attached to the surrounding rock, and reduces the construction risk.

The invention discloses a soil secondary compacting device with an adjustable compacting range for agricultural seeding, and belongs to the technical field of soil compacting, the soil secondary compacting device comprises a frame, a support steel frame is fixed on the frame, and two groups of compacting mechanisms arranged front and back are arranged on the support steel frame; the pressing mechanism comprises a fixed support fixed to the supporting steel frame, a fixed pressing wheel is rotationally connected to the fixed support, and a plurality of movable pressing wheels which are sequentially arranged in the axis direction are arranged on one side of the fixed pressing wheel. The fixed pressing wheel and the movable pressing wheel of the pressing mechanism on the front side and the corresponding fixed pressing wheel and the corresponding movable pressing wheel in the pressing mechanism on the rear side are distributed in a staggered mode. And a shifting mechanism for adjusting the positions of the movable pressing wheels in the pressing mechanism and further adjusting the distance between the fixed pressing wheels and the movable pressing wheels and the distance between every two adjacent movable pressing wheels is arranged on the fixed bracket. By adjusting the position of the movable pressing wheel, the compaction range is rapidly adjusted.

The utility model discloses a movable distributing machine for quantitative loading, which is mounted on a steel frame platform track, a truck walking area is arranged below the steel frame platform track, the movable distributing machine comprises a frame, a driving wheel set and a driven wheel set, and the driving wheel set and the driven wheel set are arranged at the bottom of the frame. The driving wheel set and the driven wheel set are placed on the steel frame platform track and can move back and forth, a driving roller and a driven roller are installed at the two ends of the upper portion of the frame, the driving roller is connected with a driving device, the driving roller and the driven roller are sleeved with a skirt belt, and a carrier roller is further installed on the portion, between the driving roller and the driven roller, of the frame.

According to the root zone limiting type grape rain-sheltering cultivation system and method based on agriculture and light complementation, existing photovoltaic panels, prefabricated steel frames and prefabricated cement piles in a photovoltaic field are used as infrastructures, rainwater is collected and drained by installing gutters and drainage pipelines, and water accumulation is avoided; a transparent polyethylene film is installed between two adjacent rows of prefabricated steel frames to serve as a rain sheltering film, and meanwhile a reflective film is laid in a gap area of the photovoltaic panels to achieve the effects of light supplement and disease and pest prevention. Grape root systems are limited in container systems composed of plastic outer packaging bags and nutrient soil, and the container systems are arranged above the reflective film at equal intervals. A grape shed frame is constructed through the transverse pulling frame wires and the stand columns to support grape vines to grow; the rain sheltering film is fixed through a clamping spring and a clamping groove and is provided with a drainage hole connected with a drainage pipe; the high-quality and high-efficiency grape cultivation scheme is adopted, the leisure and sightseeing functions are considered, land resources under the photovoltaic panel are effectively utilized, the contradiction between grape rain-sheltering cultivation and illumination requirements in an agriculture and light complementary mode is solved, and the utilization efficiency of land and light resources is improved.

The invention relates to a composite sleeve lining reinforced tunnel disease structure and a construction method, a feet-lock bolt guide construction technology is adopted, the inclination angle of a drill rod is adjusted through a feet-lock bolt guide device, a feet-lock bolt is constructed through drilling of the drill rod, and the construction quality and the construction efficiency of the feet-lock bolt are improved; a shaped reinforcement cage built-in profile steel sleeve lining reinforcing technology is adopted, and the reinforcement cage for reinforcing the sleeve lining is reinforced by built-in profile steel and is welded with an anchor rod, so that the supporting capacity and stability of the secondary lining of the existing tunnel are enhanced; the steel frame beams are arranged on the upper portions of the grouting steel pipes, the grouting steel pipes are inserted into the sleeves on the lower portions of the steel cross beams to be welded and fixed, the steel frame beams form a whole, the efficiency and quality of tunnel construction are improved, and the supporting capacity and stability of a tunnel are remarkably enhanced.

The invention discloses a wood peel drying equipment, comprising a connecting rod and an axle rod, wherein both ends of the axle rod are mounted on a fixed frame through bearings, and a sprocket is mounted on the axle rod, and a left chain is mounted on the left sprocket, and a right chain is mounted on the right sprocket; a left clamping rod is fixedly connected to the connecting rod, and a right clamping rod is mounted on the right side of the left clamping rod, and the connecting rod is fixedly connected to a steel bar frame, a left reinforcement spring is welded on the left side of the connecting rod, and a right reinforcement spring is welded on the right side of the connecting rod, and the bottom of the fixed frame is fixedly connected to a support leg, and the bottom of the support leg is fixedly connected to a fixed plate. In the wood peel drying equipment, the steel bar frame is located on the upper and lower sides of the axle rod, and the skin is placed in a vertical layer, which ensures that the front and back sides of the skin are air-dried at the same time, and greatly reduces the floor space occupied by multiple groups of skin when drying.

The invention discloses a shield tunneling machine and rear matched trolley synchronous curve translation construction device and method, and relates to the technical field of tunnel construction. The shield tunneling machine and rear matched trolley synchronous curve translation construction device comprises a battery car marshalling machine head, a slag hopper chassis and an advancing track; the advancing track is arranged in a tunnel; the battery car marshalling machine head and the slag hopper chassis are hinged through a connecting beam and are both arranged on the advancing track; an H-shaped steel frame is arranged on the slag hopper chassis, and a shield tunneling machine rear matching trolley is arranged on the H-shaped steel frame. During construction, only steel pipes, H-shaped steel, pin shafts and steel plates are used as steel structure materials; only the steel pipe is connected with two separated platforms at the bottom of the trolley by a small amount of welding operation; and few steel structure materials are used, welding operation is little, all the materials can be recycled, and the beneficial effects of being environmentally friendly and saving energy are achieved.

The utility model discloses a steel structure house assembling and connecting part which comprises a steel frame, and an installation mechanism is arranged outside the steel frame. The mounting mechanism comprises connecting steel pieces which are fixedly mounted on the outer walls of the left side and the right side of the steel frame, and I-shaped connecting steel bodies are clamped in the connecting steel pieces; two supporting rods are fixedly mounted on the front inner wall and the rear inner wall of the steel frame, a mounting disc is fixedly mounted on the tops of the supporting rods, a threaded rod is in threaded connection with the interior of the mounting disc, and a mounting ring is fixedly mounted on the peripheral wall of the threaded rod; a mounting steel part is fixedly mounted in an inner cavity of the I-shaped connecting steel body, tensioning ropes are fixedly mounted on the peripheral wall of the mounting steel part, and the two tensioning ropes penetrate through the inner walls of the left side and the right side of the steel frame correspondingly to extend into the steel frame to be fixedly connected with the two mounting rings. According to the tensioning mechanism, the problem that the tightness is reduced due to the fact that the tension range and uniformity of an existing tensioning mechanism are limited can be solved, and the fixing effect of installation and connection of the I-shaped connecting steel body is improved.

The invention discloses assembled aerobic and anaerobic immobilized microorganism sewage treatment equipment, and relates to the technical field of sewage treatment, the assembled aerobic and anaerobic immobilized microorganism sewage treatment equipment comprises: a fixing unit comprising a fixing steel frame, an aerobic reaction zone arranged on the fixing steel frame, and an anaerobic reaction zone arranged on the fixing steel frame, the anaerobic reaction area is arranged on one side of the fixed steel frame, and the aerobic reaction area is connected with the anaerobic reaction area and the condensation pollution discharge area. Through the water flow impact force of sewage, the cleaning assembly can rotate and move up and down in the tank assembly, so that the sewage can be disturbed, and the filtering assembly can better pretreat and filter the sewage and intercept large impurities; meanwhile, through different filtering calibers of a filtering plate in the filtering assembly, soil and sandy soil in the sewage can be greatly intercepted, filtered and collected in a unified mode, and the situation that the sewage adheres to the inner wall of the pipeline, and consequently the pipeline is blocked is prevented.

The invention discloses an ultralow-temperature LNG (Liquefied Natural Gas) underground cavern reservoir freezing simulation test device and method, and particularly relates to the field of underground energy storage. Comprising a steel frame, an overflow groove is formed in the upper side of the steel frame, a water conveying groove penetrating through the left side and the right side of the steel frame is formed in the lower side of the steel frame, a water inlet hole and a water drainage hole are formed in the two ends of the water conveying groove respectively, a rock mass model is arranged in the steel frame, and high-strength heat insulation organic glass plates are further arranged on the front side and the rear side of the steel frame; the high-strength heat insulation organic glass plate is connected with the steel frame through a fixing assembly, a sensor assembly is arranged on the high-strength heat insulation organic glass plate, the steel frame is further wrapped with a cooling cylinder embedded in the rock mass model, and the cooling cylinder is used for cooling the interior of the steel frame. By adopting the technical scheme of the invention, the problems of high difficulty and high cost of the existing cavern test are solved, and simulation of various important research objects such as surrounding rock groundwater seepage, temperature and strain field evolution, crack frost heaving expansion and ice seal ring form can be realized.

The embodiment of the invention provides a shipyard steel framed bent scheme automatic optimization method and system. The method is applied to the technical field of buildings and comprises the following steps: selecting an initial size of a shipyard steel bent column beam section and bent design information based on engineering experience library data, and constructing high-precision input characteristics based on factory design information; based on the high-precision input features, constructing a physical constraint graph neural network, and predicting an initial design scheme meeting the physical constraint; and carrying out multi-objective reinforcement learning optimization on the initial design scheme meeting the physical constraint, and carrying out dynamic adjustment in a virtual simulation environment to obtain optimized steel bent design parameters. In this way, according to the method, the shipyard data are monitored in real time, the graph neural network is constructed for feature extraction and parameter optimization, the optimal steel frame parameters are obtained in dynamic adjustment, and the practical value is high.

The present invention relates to the field of mechanical component testing technology, and in particular to a vibration testing device for mechanical components of a crane boom, comprising a vibration platform fixedly arranged at the bottom, the top of the vibration platform being used to install a cantilever crane, a fixed platform being arranged on the left side of the vibration platform, a fixed steel frame being arranged on the top of the fixed platform, a cantilever displacement mechanism being installed on the fixed steel frame, the left end of the cantilever displacement mechanism being connected to an externally matched telescopic device, a lifting and lowering position control device being installed at the right end of the cantilever displacement mechanism, and position control testing devices being installed on the front and rear sides of the lifting and lowering position control device, respectively. The present invention can be installed inside a workshop to test the vibration state of a cantilever crane under different vibration simulation working conditions and obtain the vibration frequency and amplitude, effectively monitor whether different vibration points of the current cantilever crane have exceeded the safety threshold, and issue an alarm after timely uploading.

The invention provides a multi-layer plating control method for a steel-wood combined template, and relates to the technical field of plating process optimization, and the method comprises the following steps: calculating a secondary thickness difference between a secondary plating standard thickness and a maximum thickness intermediate value, carrying out secondary plating scheme control analysis by taking the secondary thickness difference as a plating target, and outputting optimized secondary plating parameters; (N-1) deviation areas are determined, secondary local plating scheme control analysis is conducted according to the (N-1) local thickness differences, and (N-1) optimized secondary local plating parameters are determined; and secondary overall plating is conducted on the target steel frame according to the optimized secondary local plating parameters, and after overall plating is completed, layered plating is conducted on the N-1 deviation areas according to the N-1 optimized secondary local plating parameters. By means of the method, the technical problems that in a traditional method, control parameters cannot be precisely connected, thickness fluctuation is likely to occur, and the overall plating layer quality is affected can be solved, the plating layer thickness fluctuation problem can be eliminated, the overall plating layer quality is improved, and the effect of high corrosion resistance and wear resistance is achieved.

This invention relates to the field of photovoltaic module technology and discloses a photovoltaic frame and a photovoltaic module. The photovoltaic frame, comprising multiple steel frame strips connected end-to-end in sequence and corner connectors joining steel frame strips adjacent to each other at a corner; wherein each steel frame strip comprises: a first mounting chamber and second mounting chamber, the second mounting chamber includes a fourth steel wall, the top and bottom of the fourth steel wall are bent to connect to the protruding / recessing portion and one side of the fifth steel wall, respectively, and the free end of the fifth steel wall has a bent section; the corner connector comprises a first connecting part and a second connecting part, joined by a bend; the first connecting part comprises a first connecting wall and a second connecting wall connected by a bend, while the second connecting part comprises a third connecting wall and fourth connecting wall connected by a bend; both the first connecting wall and the third connecting wall are vertical or horizontal steel walls, while the second connecting wall and fourth connecting wall can be horizontal or vertical steel walls; the upper end of the vertical steel wall snaps into the protruding / recessing portion, and the horizontal steel wall snaps into a chamber defined by the lower end of the fourth steel wall, the fifth steel wall, and the bent section on the free end of the fifth steelwall. Thus, the mechanical strength and installation stability of the photovoltaic frame can be improved, and the cost can be reduced.

The invention relates to the technical field of metal roof steel architecture buildings in general building structures, in particular to a damping structure of a metal roof steel architecture building. The device comprises steel structure stand columns, steel structure cross beams, arch-shaped upper suspension rods and metal roof panels. The left end and the right end of each steel structure cross beam are installed at the top ends of the two symmetrical steel structure stand columns. The middle of the arched upper suspension rod is located above the steel structure cross beam, the two ends of the arched upper suspension rod in the length direction correspondingly penetrate through suspension rod through holes formed in the two ends of the steel structure cross beam respectively, and the two ends of the arched upper suspension rod in the length direction are connected with the inner sides of the two steel structure stand columns through straight hole bolt limiting assemblies respectively. The left and right ends of the steel structure cross beam are mounted at the top ends of the steel structure stand columns through arc hole bolt spring limiting assemblies; and the metal roof panel is mounted on the arched upper suspension rod and the steel structure cross beam through the elastic universal assembly. The overall damping performance of the building can be effectively improved, and the safety of the overall structure of the building is better ensured.