216results about How to "To achieve the goal of cost reduction and efficiency increase" patented technology

The invention relates to a cold-bending roller welding repair method, which includes the steps: firstly, performing crack depth and length flaw detection for cracking and damaged positions; secondly, grinding and back chipping the cracking and damaged positions of surfaces of rollers; thirdly, warming and preheating the rollers; fourthly, performing repair welding by means of overlaying process; fifthly, performing post-welding heat treatment; sixthly, performing machining according to requirements of drawings; and seventhly, performing nondestructive testing and hardness testing. The service life of a repaired roller is the same as that of a newly made roller, the surface hardness of the repaired roller reaches HRC (Rockwell hardness) 56-60, and the expense of an end user for using the rollers is reduced.

The invention relates to a variable-diameter hydraulic cutter capable of realizing continuous cutting of sleevings with different diameters through gear and rack transmission in the abandoned well operation process. The technical scheme of the cutter is that an upper joint is connected with a housing by threads; a spraying nozzle is located in a piston push rod and connected with the push rod by the threads; an upper spring, a turning mechanism and a piston are mounted on the piston push rod sequentially and arranged inside the housing; cutter knives are arranged uniformly in the circumferential direction and connected with the housing by hinge pins, gear structures of the upper parts of the cutter knife bodies are meshed with a cylindrical rack, the rack and the gears can transmit, and too large displacement of the cutter knives is limited while the opening degrees of the cutter knives are accurately controlled. According to the variable-diameter hydraulic cutter, the piston and the turning mechanism are pushed by the throttling action, gear and rack transmission is matched so as to realize continuous cutting of the sleevings with different diameters, trip times are reduced, the abandoned well operation time is saved, and the sleeving cutting efficiency and the operation reliability in the abandoned well operation process are improved greatly.

The invention discloses a parameter diagnosis and analysis method for an electric submersible pump well working condition instrument. The method comprises steps as follows: a parameter curve chart of a typical electric submersible pump well fault type is drawn firstly; six groups of parameters including pump inlet temperature, motor winding temperature, pump inlet pressure, pump outlet pressure, leakage current and motor variation frequency are collected by the working condition instrument; pump working condition data are recorded and monitored by a recording instrument in real time; when an electric submersible pump well breaks down, the fault type is determined after comparison of a parameter curve acquired by the working condition instrument and the parameter curve chart. According to the parameter diagnosis and analysis method for the electric submersible pump well working condition instrument, the parameter curve chart of the typical electric submersible pump well fault type is drawn, so that when the electric submersible pump well breaks down again, the fault type can be determined rapidly and accurately, the working condition diagnosis accuracy rate and the fault recovery rate of the electric submersible pump are increased, meanwhile, by virtue of comparison with the chart, pre-warning and treatment are performed in time, the pump inspection period of an oil well is prolonged, the frequency of pump inspection and well repair is reduced, and the purpose of cost reduction and benefit increase is achieved.

The invention relates to a cold bend roller welding repairing method. The cold bend roller welding repairing method comprises the steps of (1) detecting the depth and length of a fracture in the fracture and damaged portion, and carrying out grinding and back gouging on the fracture and damaged portion on the surface of a roller, (2) carrying out heating pre-heating processing on the roller, (3) carrying out welding repairing through a surfacing process, (4) carrying out heating processing after welding, (5) carrying out machining according to drawing requirements, and (6) carrying out damage-free detection and hardness detection. The cold bend roller welding repairing method repairs the damaged roller through a series of industrial measures and procedures, tracking statistics shows that the service life of the repaired roller is the same as that a newly made roller, the surface hardness reaches HRC56-60, the expenses on the aspect of roller usage is largely reduced for use enterprises, and therefore the purposes of reducing cost and increasing benefits are achieved.

A measuring device for the gap of guide blade edge plates belongs to the technical field of aviation motors. The measuring device for the gap of the guide blade edge plates is provided with a transmission mechanism, a force applying mechanism and a positioning mechanism and realizes the effect that the stable and accurate gap measuring data of the guide blade edge plates are obtained under the condition that an external force is applied to the guide blades. The device utilizes multiple uniformly distributed thimbles and a support gasket to realize the effect that the same-level guide blades are subjected to the external force with the uniform size at the same time; the design concept of piling adjusting cushion blocks is adopted, and the aim that one device is suitable for the external force applying function for the multi-level guide blades in the same receiver is realized. The measuring device comprises a chassis, wherein a lifting supporting mechanism, the force applying mechanism and the positioning mechanism are arranged on the chassis; the lifting supporting mechanism is formed by a screw rod, a screw barrel, a guide pin, a dynamometer seat, a sensor for a dynamometer, a press pillar, an angle frame, a guide plate, the thimbles and the support gasket. The force applying mechanism is formed by a first bevel gear, a second bevel gear, a rotary shaft and a support; the positioning mechanism is formed by a base with a through hole, a positioning ring and a hook-shaped press plate.

The invention discloses a cooling and annealing process of a solar cell. The cooling and annealing process comprises the following steps of (1) diffusing to enter a boat; (2) oxidizing; (3) diffusing and introducing a source in a low-temperature state; (4) diffusing and pushing a junction in a high-temperature state; (5) taking out a silicon wafer out of a furnace, cooling the silicon wafer, and stabilizing the temperature of a furnace tube; (6) throwing the silicon wafer into the furnace for second times, and carrying out low-temperature annealing; and (7) diffusing to get out of the boat. By the cooling and annealing process, a diffusion dead layer is reduced, thermal defect caused by high-temperature reaction is reduced, and thus, the conversion efficiency of the solar cell is improved; particularly, the open-circuit voltage is obviously increased and is higher than that of a traditional process by 2mV, a filling factor is also improved, and thus, the conversion efficiency of the battery cell is obviously improved; and the thickness of a PN-junction dead layer of the silicon wafer surface after diffusion is reduced, lattice damage brought by high-temperature diffusion is reduced, and minority carrier lifetime is prolonged.

The invention discloses a full-life-cycle building information management system and method. The system includes a component library, a model library, a 9D library, an MGD library and an intelligent hitching engine. The intelligent hitching engine can employ a correlation algorithm to establish connection relationships on geometric data information of BIM (Building Information Modeling) componentsand digital fine-decoration standardization data according to component ID, hitch project information, processes and resources of an engineering project at all different stages in a full life cycle to a BIM model, directly generate 9D data of the full life cycle of a building by the BIM components, and carry out platform display. Therefore, the system can be conveniently used by all participationparties of the project, and provide refined construction guidance for all the stages in the life cycle of the building, and achieves the purpose of cost reducing and efficiency improving.

The invention discloses a steel bar-steel fiber concrete shield segment normal section bearing capacity and reinforcement measuring method, which is characterized by taking an elastic flexural-tensileresidual strength value obtained through an open beam three-point bending test as a basic parameter of a material constitutive model, converting the elastic flexural-tensile residual strength obtained by the test into axial-tensile residual strength under a constitutive model; determining the axial force and the bending moment of the steel fiber reinforced concrete on the normal section of the shield segment according to the tensile strength and the stress distribution function of the steel fiber reinforced concrete; and then, considering steel bar configuration, establishing a steel bar-steel fiber concrete shield segment normal section ultimate bearing capacity balance equation set, and determining ultimate bearing capacity or steel bar configuration on the shield segment normal section. Therefore, the method not only can be used for determining the ultimate bearing capacity, but also can be used for determining the steel bar configuration, a steel bar-steel fiber reinforced concrete structure normal section bearing capacity measuring and calculating system is further perfected, and full exertion of the advantages of the steel bar-steel fiber reinforced concrete structure and application and popularization in other fields are facilitated.

The invention relates to an erecting welding technological method for a single-upper-ring type large segmented stand ring with sole plates. A sole plate positioning template and positioning pipes are used for precise positioning; and after splice welding of a lower guide plate, fixed guide vane mounting holes are perforated in a matched mode, and then fixed guide vanes are inserted. The key process problems of stand ring welding deformation, sole plate assembly positioning, sole plate combining through hole processing cost, the production cycle and the like are solved through an auxiliary lower ring, the sole plate positioning templates and the positioning pipes, and the production cost and the production cycle are reduced. According to the stand ring manufactured through the technological method, the problems of assembly positioning, the production cost, welding deformation and the like are effectively solved, and construction site installation requirements are met; the subsequent production cycle and processing cost are greatly reduced, economy and practicability are both considered, and the purposes of lowering cost and improving effects are achieved.

The invention discloses a method for preparing an SE (Selective Emitter) solar cell by utilizing a sectional type mask graph. The method comprises the step of forming an SE mask graph on a diffusing surface by utilizing an SE etching mask sizing agent, wherein the part, which corresponds to a thin grid line, of an SE mask is in a sectional type discontinuous shape, thus forming a sectional type SE mark coating covering region. According to the method for preparing the SE solar cell by utilizing the sectional type mask graph, the traditional straight-through type SE mark coating covering region is changed into multiple sectional type SE mark coating covering regions according to a certain rule through an SE etching mask, the purpose that the transfer efficiency of a battery piece is guaranteed or improved is achieved, meanwhile, the dosage of the SE sizing agent is reduced, and the production cost is reduced.

As the number of tube plate build-up welding composite layers of a composite plate heat exchanger increases, a traditional direct build-up welding mode wastes labor and time. The invention provides a machining method of heat exchanger tube plate build-up welding. In the machining method, the method that machining is performed firstly and then build-up welding is conducted is used for machining, therefore, operation is more convenient, and the efficiency is greatly increased; firstly machining is conducted according to the method, the external diameter of a tube plate sealing surface is reduced by 6-10 mm, the depth of the tube plate sealing surface is 5 mm, and 45-degree chamfering is conducted on the tube plate sealing surface, the width of a partition plate groove is increased by 4-6 mm, the depth of the partition plate groove is 5 mm, the two sides of the partition plate groove are chamfered by 30-60 degrees, and a 3-5 mm stainless steel composite layer is formed in a build-up welding mode. According to the method, the purposes of energy conservation, consumption reduction, cost decreasing and efficiency increasing are achieved.

The invention discloses a method for machining cylinder holes in a diesel engine body. The method comprises steps as follows: machining elements of the cylinder holes in the engine body are classified, analyzed one by one and allocated to rough machining combined boring tools and finish machining combined boring tools; machining elements required to be machined are machined through the rough machining combined boring tools and the finish machining combined boring tools respectively; during machining, resistance to cutting is balanced, and vibration of the tools is reduced. With the adoption of the method, the tool changing frequency and the number of the tools can be reduced, so that the tool changing time is saved, the cost decreasing and benefit increasing purposes are achieved, and the yield of the diesel engine body is increased.

The invention discloses a distribution network accurate investment strategy method based on customer demands. The method is based on the relationship between customer appeals and a power grid structure. Evaluating models such as an AHP and a fuzzy weight matrix are used; an algorithm for supporting the precise investment work of the distribution network according to the quantitative distribution transformer reliability index is provided; according to the algorithm, the customer appeal and the reliability identification result of the power grid operation structure are fused, the distribution transformer with strong customer appeal and poor operation state is preferentially invested, the customer service level can be improved, the operation cost can be reduced, and the purpose of accurate investment of the distribution network is further achieved.

The invention belongs to the technical field of industrial wastewater treatment, and concretely relates to an acrylonitrile wastewater treatment method. The method comprises the steps of homogenization, acidification, denitrification, nitrification and deposition. TMPD wastewater with very good biodegradability can be supplemented in the acrylonitrile wastewater treatment process as a carbon source, so the COD and total nitrogen treatment effect of acrylonitrile wastewater by a system is improved, and the problem of difficult standard reaching of direct treatment of the TMPD wastewater is solved, that is, purposes of waste control by waste, cost reduction and effect improvement are realized; and a new approach is provided for standard reaching treatment of the acrylonitrile wastewater. The method has the characteristics of simple flow and low running cost.

The invention relates to a method for producing stalks by expanded stems. The method includes steps of pretreating the expanded stems, arranging the stalks and slicing, ordering and cutting the stalks, burdening, drying, sorting and flavoring and the like. The stalks are mixed into cigarette, tar and CO release can be effectively reduced, the cigarette is little irritant, soft in smoke and comfortable in taste, smoking quality is greatly improved, stability of the cigarette is improved remarkably, cigarette quality is improved, application range of the stalks in the cigarette is broadened, utilization rate is increased, cost is reduced and effect is improved.