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186results about How to "Shorten the engineering cycle" patented technology

Prefabricated bamboo composite pipe gallery and manufacturing method thereof

The invention discloses a prefabricated bamboo composite pipe gallery, which is formed by connecting a plurality of prefabricated pipe joints, wherein each pipe joint comprises a pipe body, a force bearing mechanism, vertical supporting beams, a horizontal supporting beam and pipeline supports; the pipe body radially comprises a liner layer, a structure layer and an outer protection layer from inside to outside in sequence; the liner layer comprises flame-retarded resin and flame-retarded fabrics; the structure layer at least comprises a plurality of bamboo skin layers which are bonded with water soluble resin; the outer protection layer at least comprises flame-retarded resin; and the force bearing mechanism is fixed to the inner surface of the pipe body. The invention also discloses a method of manufacturing the prefabricated bamboo composite pipe gallery. The method comprises the manufacturing of the pipe body. The preparation method of the pipe body comprises the steps: (1) the liner layer is manufactured; (2) the structure layer is manufactured; and (3) the outer protection layer is manufactured. According to the invention, bamboo is utilized to manufacture a prefabricated pipe gallery, so that the intensity is good, the weight is light, the cost is low, the impermeability is good, the antiknock characteristic is strong, the construction is convenient, and the technical problems that the existing comprehensive pipe gallery consumes too many materials, the construction project amount is large, the construction period is long and the construction cost is high are solved.
Owner:ZHEJIANG XINZHOU BAMBOO BASED COMPOSITES TECH +1

Desulfurized gypsum based antistatic self-leveling mortar and its preparation method

The invention relates to desulfurized gypsum based antistatic self-leveling mortar and its preparation method. Adopting calcined desulfurized gypsum as the main raw material, the desulfurized gypsum based antistatic self-leveling mortar comprises the following components by weight: 25-45 of desulfurized gypsum, 5-10 of slag powder, 3-10 of fly ash, 5-12 of portland cement, 15-25 of quartz sand, 15-25 of steel slag sand, 0.03-0.2 of modified carbon fiber, 0.5-2.0 of redispersible emulsion powder, 0.02-0.07 of cellulose ether, 0.10-0.25 of a water reducer, 0.1-0.4 of an antifoaming agent, 1.2-2.5 of an early strength agent, 0.02-0.06 of a retarder, and 0.002-0.005 of a carbon nanotube. The desulfurized gypsum based antistatic self-leveling mortar has good antistatic performance, bonding property, wear resistance, as well as high compressive strength, and overcomes the defect of poor water proofness of gypsum based materials. By utilizing a lot of industrial solid waste, the self-leveling mortar of the invention has the advantages of environmental protection, energy saving, and low cost, etc., and can be applied in various building ground projects with requirements for electrostatic protection and levelability.
Owner:TONGJI UNIV

Self-clean self-purification cement-based facing material and production method thereof

The invention relates to a self-clean self-purification cement-based facing material and a production method thereof. The self-clean self-purification cement-based facing material comprises the following components in parts by weight: 20-30 parts of white silicate cements, 5-10 parts of mineral admixtures, 0-20 parts of quartz sands of 20-30 meshes, 20-30 parts of quartz sands of 40-70 meshes, 20-30 parts of quartz sands of 70-100 meshes, 1-4 parts of kieselguhr, 2-4 parts of zeolite, 0.2-0.6 part of nanometer titanium dioxide, 0.5-2.0 parts of EVA redispersible latex powder, 0.2-0.8 part of organic silicon water repellent, 0-1 part of ferric oxide inorganic pigment and 0.1-0.7 part of other chemical additive. The self-clean self-purification cement-based facing material, provided by the invention, has the advantages of good self-clean property, good self-purification property, good air purification capacity, good adhesive property, good construction property, good endurance quality, higher compression strength and the like, when the self-clean self-purification cement-based facing material is used for decoration of facings of an inner wall space and an outer wall space of a building, the air purification effect and the decoration effect are good, and the self-clean self-purification cement-based facing material can be applied for decoration engineering of all kinds of facings of walls of buildings.
Owner:TONGJI UNIV

Effective grooving construction method for underground continuous wall in slightly-weathered limestone with overlying sandy soil

The invention provides an effective grooving construction method for an underground continuous wall in slightly-weathered limestone with overlying sandy soil. The method specifically comprises the steps of 1) performing core drilling in a grooving area to determine rock characters; 2) measuring the position of a setting-out calibration guide wall; 3) performing guide wall construction and determining the distribution of hole punching positions; 4) drilling guide holes, and installing guide rods; 5) punching a rock layer by using a heavy hammer and grabbing crushed rocks by using a grooving machine; 6) brushing a wall by using a square hammer and connecting the holes to form a groove; 7) cleaning the bottom of the groove to finish the grooving construction. The construction method provided by the invention has the advantages that the defects and the shortages of unsafe and unstable factors, slow construction progress, poor grooving quality and the like are overcome, and the effective, low-cost and high-accuracy grooving construction in the slightly-weathered limestone is realized; the construction effect is good, the grooving speed is fast, the construction process is simple and convenient and the construction period is greatly shortened.
Owner:CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR +1

Method for photovoltaic power station group region power prediction on basis of improved RBF neural network

InactiveCN103729685ATake advantage ofOptimize real-time scheduling adjustmentsForecastingSystems intergating technologiesSimulationNetwork model
The invention discloses a method for photovoltaic power station group region power prediction on the basis of an improved RBF neural network. The method comprises the steps of dividing a whole region into a plurality of sub-regions, performing data quality control, and removing data points remarkably not conforming to practice; calculating relative coefficients between photovoltaic power station measured power in every sub-region and sub-region total measured power, and selecting a plurality of standard photovoltaic power stations for every sub-region; utilizing a method of combining physics and statics to achieve short-term power prediction of the standard photovoltaic power stations; establishing a particle swarm optimization RBF neural network model based on a genetic operator, and predicting short-term power of every sub-region; and accumulating power prediction results of every sub-region to obtain prediction total power of a region photovoltaic power station group. The method aims to help a power scheduling department to formulate next day generation schedules according to the region power prediction results, real-time scheduling adjustment is optimized, spinning reserve capacity of a power system is reduced, system running costs are reduced, and the system photovoltaic acceptance capability is further improved.
Owner:NARI TECH CO LTD

Visual quantitative calibration and analysis method for cutter abrasion of shield tunneling machine

The invention discloses a safe, convenient, economical and reliable visual quantitative calibration and analysis method for cutter abrasion of a shield tunneling machine. The visual quantitative calibration and analysis method comprises three parts of construction of a precise three-dimensional model of the shield tunneling machine, detection on attitude resolving of image data and structural recovery of space scenes, wherein the construction of the precise three-dimensional model of the shield tunneling machine comprises the two steps of construction of a foundation frame of the model of the shield tunneling machine and fining treatment on the three-dimensional model; the detection on the attitude resolving of the image data comprises the three steps of camera calibrating, image acquiring and the attitude resolving; the structural recovery of the space scenes comprises the three steps of image processing, directional operation and cutter abrasion quantitative detection. The visual quantitative calibration and analysis method has the advantages that virtue visual integrated display and digital evaluation of abrasion conditions of cutters are achieved, large-area damage or unnecessary inspection through cabin opening and cutter replacement caused by the fact that the damaged cutters are not replaced in time can be avoided, service lives of the cutters are prolonged, therefore, construction safety risk is reduced, construction cost is reduced, and a construction period is shortened.
Owner:CCCC TUNNEL ENG +1

Composite heat insulation and protection brick or block and its producing and laying method

The present invention discloses composite heat insulating brick or block and its production process, and features that the composite heat insulating brick or block includes an inner wall block, an outer wall block and a heat insulating body in between, with the inner wall block, the outer wall block and the heat insulating body being connected integrally through adhesive. The present invention blocks the heat or cold bridge in the wall completely, and the built wall can reach the heat insulating requirement without additional energy saving construction. The present invention has heat insulating structure durability, no influence on the original floor area ratio, and controllable wall strength.
Owner:上海奥伯应用技术工程有限公司

Desulfurized gypsum based functional mortar for coating and preparation method thereof

The invention relates to desulfurized gypsum based functional mortar for coating and a preparation method thereof. The desulfurized gypsum based functional mortar for coating comprises the following components in parts by weight: 20-35 parts of desulfurized gypsum, 5-10 parts of S95 superfine slag powder, 50-70 parts of quartz sands, 3-6 parts of kieselguhr, 0.2-0.5 parts of nanometer titanium dioxide, 0.5-1.5 parts of redispersible latex powder, 0.05-0.2 part of cellulose ether, 0-0.2 part of defoaming agent, 0.3-0.8 part of water repellent, 0.5-1.0 part of lithium carbonate early strength agent and 0.02-0.05 part of retarder. The desulfurized gypsum based functional mortar for coating, provided by the invention, has the advantages of good self-purification property, good self-humidifying property, good adhesive property, good construction performance, higher compressive strength and the like, and has good effects of purifying the air and adjusting the humidity when plastering an indoor wall of a building, so that the desulfurized gypsum based functional mortar for coating can be applied for plastering engineering of all kinds of indoor walls of buildings, and a large amount of industrial solid wastes are utilized with lower economic cost, and good environmental-friendly, energy-saving and waste utilization effects.
Owner:TONGJI UNIV

Heliostat

The invention relates to a bull wheel-driving and condensation continuously adjustable heliostat belonging to the field of solar energy utilizing and tracing technology. The heliostat has the following basic structure: a T-shaped shaft is set as a horizontal rotating shaft on an upright post support; both ends of the horizontal shaft of the T-shaped shaft are in vertical rotating connection with a upright beam support of a lighting device; a horizontal driving semi wheel with the super large diameter is arranged on the horizontal shaft of the T-shaped shaft; a vertical driving semi wheel with the super large diameter is arranged on a lighting device support; and the lighting device can make horizontal azimuth rotation and vertical altitude angle rotation under the control of a horizontal driving device and a vertical driving device. Nine horizontal lighting units are distributed in the longitudinal direction of the lighting device, and each lighting unit has independent transverse condensation curvature adjusting mechanism and longitudinal light spot converging adjusting mechanism, and double condensation regulation forms that the adjustable range of the condensation multiple of the lighting device is from 1x to 69x.
Owner:刘奇灵

Airtight automatic de-rusting machine for pipeline repaired port

The invention relates to an airtight automatic de-rusting machine for a pipeline repaired port. The airtight automatic de-rusting machine is especially designed for solving the problems caused by a manual open type sandblast de-rusting operation for the pipeline repaired port. A main structure of the de-rusting machine is formed by a four-driving running device and a horizontal running device which are used for supplying motive power to the peripheral stepping and horizontal moving of the automatic de-rusting machine and executing a polishing operation. The airtight automatic de-rusting machine can automatically run according to a preset control program and can finish the surface treating operation for the pipeline; the surface of the pipeline after being treated completely meets the grade demand; the used time is short; and the efficiency is high. The airtight automatic de-rusting machine can be used for successfully solving a series of problems caused in the manual open type sandblast de-rusting operation; the labor intensity is greatly reduced; the environmental pollution is avoided; the sand material is saved; and the processing quality of the repaired port is fully ensured.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Efficient grooving construction method for underground diaphragm wall in micro-weathered granite

ActiveCN104005415AEfficient trough constructionGood effectBlastingExcavationsSlurry wallPolyvinyl chloride
The invention provides an efficient grooving construction method for an underground diaphragm wall in micro-weathered granite. The method specifically comprises the following steps: 1, geologically surveying the construction site; 2, determining the rock breaking method; 3, determining blasting parameters; 4, drilling holes from a sand layer to the surface of a rock layer, and unearthing; 5, distinguishing a rock sample, and then determining and drilling to reach intermediately-weathered granite; 5, feeding a PVC (Polyvinyl Chloride) pipe for protecting a blasting lead; 7, drilling hole in the rock layer until reaching depth 1m more than the design burial depth; 8, feeding explosive and blasting. With the adoption of the efficient grooving construction method for the underground diaphragm wall in the micro-weathered granite, the defects and shortcomings like difficult construction in the micro-weathered granite or slow construction progress, and poor grooving quality of the existing construction method of covering sand the micro-weathered granite can be overcome; the efficient, high-precision and deep-rock-embedding grooving construction in the micro-weathered granite is realized; the method has a good effect and fast to groove.
Owner:CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR +2

Installation method for thermal insulation and decoration integrated facade panels

The invention relates to an installation method for thermal insulation and decoration integrated facade panels in the field of construction methods of the construction industry. The method includes the following steps: (Step 1) main wall surface treatment; (Step 2) datum line making; (Step 3) framing installation; (Step 4) thermal insulation and decoration integrated facade panel installation; (Step 5) gap filling; (Step 6) sealant filling; (Step 7) panel surface cleaning. When the method disclosed by the invention is adopted, integral installation is convenient, cost is reduced, the construction period is short, the load of facade panels is reduced greatly, the utilizability of space and land is enhanced, the application range is wide, temperature is kept, heat is insulated, energy consumption is reduced, structural destruction caused by the circulation of rain, snow, freezing, thawing, dryness and wetness is prevented, the worry about the water seepage of wall surfaces is eased after installation, the phenomenon that indoor wall surfaces go moldy is effectively prevented, and the thermal insulation and decoration integrated facade panels are environment-friendly and durable.
Owner:杭锦旗亿利朗新材料科技有限公司

Rear part visualization detection apparatus for wearing of shield machine cutter and method thereof

The invention discloses a rear part visualization detection apparatus with characteristics of safety, convenience, economy and reliability for wearing of a shield machine cutter and a method thereof. The rear part visualization detection apparatus for wearing of the shield machine cutter comprises a camera device, a lighting device, a slushing apparatus, a first propulsion apparatus, a second propulsion apparatus, a data acquisition and analysis device, and a shield machine bubble cabin, three circular holes are arranged on the front wall of the shield machine bubble cabin, the circular holes are welded with a spherical hinge and respectively install with a ball valve for connecting the camera device, the lighting device and the slushing apparatus, the first propulsion apparatus is respectively connected to the camera device and the lighting device in a threaded mode, the second propulsion apparatus and the slushing apparatus are connected in the threaded mode, the camera device is connected to the data acquisition and analysis device, and the first propulsion apparatus and the second propulsion apparatus are connected to the front wall of the shield machine bubble cabin through a ball valve. The rear part visualization detection apparatus has the beneficial effect that the large area damage due to late replacement of the cutter after being damaged, or unnecessary cabin opening for inspection and cutter replacement can be avoided, cutter service life is prolonged, engineering safety risk is reduced, and engineering period is shortened.
Owner:CCCC TUNNEL ENG +1

Digital single machine inner projection whole ball curtain projection system

InactiveCN101216658AEasy on-site installationReduce projection engineering costsProjectorsOptical elementsCamera lensFish eye lens
The invention provides a digital stand-alone internal-projection whole-spherical-screen projection system, which comprises a digital projector, a fish-eye lens with a super viewing angle used for the digital projector and a spherical screen covering 4 / 5 to 9 / 10 area of a whole sphere, which is used for a combined projection of the digital projector and the fish-eye lens with the super viewing angle. The invention can conduct full-frame internal projection on a nearly whole-spherical transmission-type spherical screen only with one fish-eye lens and one common digital projector, and can guarantee a certain level of brightness and picture definition; the invention can be applied in the fields of city beautification project, advertising campaign on a plaza, corporation image display and product display, military training and command simulation, dimensional orientation analysis and panoramic analysis, synchronous playing of frames in a gymnasium, etc.
Owner:秦皇岛视听机械研究所有限公司

Device and method for visually detecting front part of cutter head of cutter of shield tunneling machine

The invention discloses a device and a method for visually detecting the front part of a cutter head of a cutter of a shield tunneling machine, and the device and the method are safe, convenient, fast, economical and reliable. The device comprises a camera device, a lighting device, a washing device, a first propulsion device, a second propulsion device, a third propulsion device, a data acquisition device and a bubble cabin of the shield tunneling machine, wherein the camera device comprises a front end camera and a lateral camera; the front wall of the bubble cabin of the shield tunneling machine is provided with three circular holes; spherical hinges are welded in the circular holes, respectively, and ball valves for connecting the camera device, the lighting device and the washing device are arranged in the circular holes, respectively; the first propulsion device, the second propulsion device and the third propulsion device are connected with the camera device, the lighting device and the washing device by screw threads and are respectively connected with the front wall of the bubble cabin of the shield tunneling machine by the corresponding ball valve. The device and the method have the beneficial effects that large-area damage or unnecessary cabin opening inspection and cutter replacement, which are caused by the fact that the cutter is not replaced in time after being damaged, can be avoided, and the service life of the cutter is prolonged.
Owner:CCCC TUNNEL ENG +2

Method for optimizing control parameters of ventilation and air conditioning system of subway station

The invention provides a method for optimizing control parameters of a ventilation and air conditioning system of a subway station and belongs to the field of heating ventilating and air conditioning. The method is applied to the ventilation and air conditioning system and mainly comprises the following steps: building a simulated model of a platform layer of the subway station according to a design drawing of the subway station, and determining the parameters of the simulated model; meshing the simulated model; calculating initial control parameters, and programming a PID (Proportion Integration Differentiation) control program of the ventilation and air conditioning system of the subway station by using Fluent UDF (Universal Disk Format); operating Fluent software, and calculating and solving the simulated model of the ventilation and air conditioning system of the subway station; comparing simulation temperature and speed control results of a flow field under different control parameters, and finally optimizing to obtain optimal control parameters. The method disclosed by the invention has the characteristics of changing the control parameters of the ventilation and air conditioning system of the subway station, calculating the simulation temperature and the speed control results of the flow field under different control parameters by using the Fluent software and obtaining the optimal control parameters by comparison and optimization.
Owner:BEIJING UNIV OF TECH

Frequency sweeping-based method and system for optimizing frequency and scrambler

The invention discloses a frequency sweeping-based method for optimizing frequency and scrambler. The method is applied to the optimization of frequency and scrambler of cells in a TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) communication network, and basic information of the cells are contained in cell libraries. The method comprises the steps of: establishing an original overlapping relation matrix of cells; acquiring cell types and inter-cell correlation information; calculating the original overlapping relation matrix by utilizing a genetic algorithm, and outputting a frequency configuration scheme; and estimating the frequency configuration scheme. Correspondingly, the invention provides a system implementing the method, the acquired data with single frequency sweeping is only required in project, configuration is optimized according to the method disclosed by the invention to achieve the purpose of optimizing frequency and scrambler, thereby plenty of manpower and material resources are saved, working efficiency is improved and project period is shortened.
Owner:SHENZHEN KEHONG COMM

Multifunctional twin-hull wind power engineering ship for offshore high-altitude heavy-duty lifting installation operation

The invention discloses a multifunctional twin-hull wind power engineering ship for offshore high-altitude heavy-duty lifting installation operation, in particular relates to an offshore lifting operation ship. The wind power engineering ship provided by the invention comprises a lifting appliance system, a pile hammer system, a pile stabilizer, a dead rope hoist, a hydraulic system and an electrical system. According to the invention, relevant equipment are creatively and scientifically designed and configured in the limited deck and operation space of one engineering ship so that a multifunctional engineering operation system is formed, an offshore wind power engineering ship which firstly integrates multifunction such as wind power single-pile foundation construction, integral fan transportation and integral installation in the world formed. The engineering ship is stable in operation on the sea, high in control precision and good in installation engineering quality; the manpower and material resources are greatly saved; the engineering period is shortened; the engineering cost is greatly reduced; the construction efficiency of an offshore wind power installation engineering is remarkably increased; the current situation that the offshore engineering operation is finished by using a plurality of ships and equipments for a long term is thoroughly changed; and innovative high-quality equipment is provided for the development of the offshore wind power cause.
Owner:GUANGDONG HUAERCHEN OFFSHORE WIND POWER ENG +2

Big data O2O drawing reviewing cloud platform management system used for construction project construction drawing reviewing

The invention discloses a big data O2O drawing reviewing cloud platform management system used for construction project construction drawing reviewing. A construction organization drawing paper upload module comprises a network server and a database server assembly. A construction unit data terminal is connected with the input end of the network server. The data output end of the network server is connected with the database server assembly. A firewall is connected on the port of the database server assembly through a switch I. The firewall is divided into three paths to be connected with a reviewing organization drawing reviewing management terminal, a storage unit and a CAD electronic signature authentication system. The whole course of paperless drawing reviewing of construction drawing reviewing can be realized, the drawing reviewing efficiency and the installation performance can be enhanced, and the cost can be greatly saved and the project period can be shortened.
Owner:泰州市抗震办公室 +1

Line-scanning X-ray tube digital imaging detection device

The invention discloses a line-scanning X-ray tube digital imaging detection device, which comprises a detection device fixation ring, a ray machine mobile base, a ray machine fixation device, a detector mobile base, a detector dismounting device, a ray machine and a linear array detector. The detection device fixation ring is arranged outside a tested steel tube; the ray machine and the linear array detector are arranged at the upper and lower ends of the detection device fixation ring respectively, move along an arc guide rail through an arc toothed bar and move circularly outside of the detected steel tube, and meanwhile, enable X-ray for synchronous flaw detection to finish real-time imaging detection of pipeline butt welding seams. The detection device not only overcomes many disadvantages of traditional film detection technology, improves detection efficiency, but also overcomes the defects of low guidance accuracy and poor detection effect of the imaging plate X-ray pipeline inspection technology, greatly reduces cost and is more suitable for wide popularization and application.
Owner:DANDONG HUARI SCIENCE ELECTRIC CO LTD

Abandoned oil-gas pipeline grouting filling device and method

InactiveCN104631462AGrouting filling distance is longHigh grout filling rateSoil preservationEngineeringGuide tube
The invention provides an abandoned oil-gas pipeline grouting filling device and a method. The abandoned oil-gas pipeline grouting filling device comprises a grouter, a sediment separator and a vacuum pump. The grouter is connected with a grout input arranged on one end of the pipeline, and is used for pouring the grout into the pipeline through the grout input and promoting the grout to advance in the pipeline; one end of the sediment separator is connected with a grout outlet arranged on the upper end of the other end of the pipeline, and is used for ensuring that the pipeline is filled with the grout; the vacuum pump is connected with the other end of the sediment separator, and is used for providing a vacuum environment for the pipeline during the grouting process and reducing the resistance caused by the elevation difference of the pipeline. The abandoned oil-gas pipeline grouting filling device and the method have the advantages that the grouting quality and grouting efficiency of the abandoned oil-gas pipeline with a long distance and a large caliber are guaranteed.
Owner:PETROCHINA CO LTD

Dilute oil lubricating bearing seat test system and test method thereof

The invention relates to a test device in the mechanical field, and in particular relates to a test system of a dilute oil lubricating bearing seat for a centrifuge. The dilute oil lubricating bearing seat test system is characterized in that: a dilute oil lubricating bearing seat (3) is driven by a motor and mounted on a lifting platform (2) with the motor; a hydraulic station (9) mounted on theground is connected to an oil inlet of the dilute oil lubricating bearing seat (3) through an oil inlet pipe; an oil outlet pipe of the dilute oil lubricating bearing seat (3) is connected to an oil tank of the hydraulic station; and a computer data monitor (5) is electrically connected with the dilute oil lubricating bearing seat (3), the hydraulic station (9) and the lifting platform (2) through an electric appliance control box (6). The invention provides a set of automatic test system and method of the dilute oil lubricating bearing seat, the labor intensity of testers is reduced, the test speed and precision are improved, the working parameters are more scientific and reliable, the debugging period of the dilute oil lubricating bearing seat on site of a horizontal spiral centrifuge is shortened, the cost is reduced, the construction efficiency and economical benefit are increased, and the technical blank home and abroad in the field is filled up.
Owner:SHANGHAI CENTRIFUGE INST

Three-dimensional large scene-based transmission line path optimization line selection

The invention discloses three-dimensional large scene-based transmission line path optimization line selection. According to the three-dimensional large scene-based transmission line path optimizationline selection, a digital elevation model DEM and a digital orthophoto image DOM are required. The three-dimensional large scene-based transmission line path optimization line selection comprises thefollowing steps of: obtaining the digital elevation model DEM; generating a digital orthophoto image DOM result; respectively reading the digital elevation model DEM and the digital orthophoto imageDOM into the calculated memory space through an algorithm; respectively projecting the digital orthophoto image DOM onto the left and right three-dimensional images according to data of the digital elevation model DEM, so as to display a three-dimensional effect consistent with the practical world to observers, and carrying out transmission line optimal design work on the basis. According to the three-dimensional large scene-based transmission line path optimization line selection, the number of model switching during line optimization is optimized, the field of view for line selection and designer observation is enlarged, the transmission line optimization work is more accurate, the working progress and operation efficiency are improved, the project period is decreased, the risk of laterwire rerouting is reduced, the manpower and material resources are saved and the project cost is saved.
Owner:北京正能空间信息技术有限公司

Recyclable foundation pit support pipe pile and application and recovery method thereof

The invention discloses a recyclable foundation pit support pipe pile and an application and recovery method thereof. The recyclable foundation pit support pipe pile is characterized by comprising two semicircular hollow steel tubes. The axial section of each semicircular hollow steel tube is provided with alternating rectangular teeth and grooves. The rectangular teeth of the two semicircular hollow steel tubes are respectively provided with pinholes, the pinholes with coinciding center lines allow long pins to axially penetrate the rectangular teeth for fixation when the two semicircular hollow steel tubes are abutted to form the steel pipe pile. The application and recovery method includes the steps of determining the position of the pipe pile in a foundation pit, making a drilled hole, abutting the two semicircular hollow steel tubes into the steel pipe pile, placing the pipe pile into the drilled hole, constructing a foundation of the foundation pit, recovering the steel pipe pile after construction, and the like. The recyclable foundation pit support pipe pile and the application and recovery method thereof have the advantages that defects of the prior art are overcome, foundation pit supporting structures are recycled, engineering cost is reduced, engineering cycle is shortened, damage of the foundation of the foundation pit is avoided, and the recyclable foundation pit support pipe pile is highly practical.
Owner:CHINA CONSTR SIXTH ENG DIV CORP

Prefabricated type pipe rack

The invention belongs to the related field of municipal facilities and discloses a prefabricated type pipe rack. The prefabricated type pipe rack is formed by connecting a plurality of pipe joints, wherein each pipe joint comprises a pipe body which sequentially comprises a structural layer and an outer protective layer from inside to outside in the radial direction; each structural layer is formed by bonding and curing one or more multiple wound layers of wood, hemp stalks, rattans, straws, reed stalks and silvergrass stalks; and the outer protective layer is prepared from a fireproof corrosion-resistant material. The prefabricated pipe joints are connected on the engineering field to form the pipe rack, so that engineering quantity is greatly reduced, construction is convenient, engineering period is shortened and manufacturing cost is low; the pipe body is simple in structure, is convenient to process, the structural layer is taken as the main body structure of the pipe body, and is formed by winding plants materials such as wood with certain strength, hemp stalks, rattans, straws, reed stalks and silvergrass stalks, and raw materials are wide in source, are green and environmentally friendly and are reproducible.
Owner:ZHEJIANG XINZHOU BAMBOO BASED COMPOSITES TECH +1

Modular bypass vent waste heat boiler at tail of cement kiln

A modular bypass vent waste heat boiler at the tail of a cement kiln is mainly characterized in that a part of heating surfaces adopts heating surface modules which are independent of one another, have the same structure and is provided with respective independent frames; heat insulation protection plates are arranged around the frames to form a section of cylindrical outer shell; hoisting mechanisms are arranged on the frames; the heating surfaces of the modules are arranged on the frames in the respective outer shells; one end of each of inlet / outlet headers connected with the heating surfaces of the modules is arranged outside the outer shell; upper components of the boiler are connected with lower components of the boiler; and upper and lower headers of the modules are connected with ascending and descending pipes of a boiler barrel by pipelines as required. The installation period of the waste heat boiler can be greatly shortened, the labor cost is saved, the installation cost is greatly lowered, the welding quality can be controlled better, the service life of the boiler can be prolonged, and the heating surface of the boiler can be prevented from damages in the transportation process to the full extent.
Owner:DALIAN EAST NEW ENERGY DEV

Wireless entrance machine/enclosure machine based on 3G/4G communication

The invention discloses a wireless entrance machine / enclosure machine based on 3G / 4G communication. The wireless entrance machine / enclosure machine is characterized by comprising a CPU core board and a 3G / 4G module, an LCD display module, a keyboard module, a audio processing module, a unlocking module, an OTG debugging module, a DTMF module, a 485 communication module, an exit button module and an IC / ID card read module which are connected to the CPU core board. The wireless entrance machine / enclosure machine also comprises a SIM card module and power amplifier module which are connected to the 3G / 4G module. The power amplifier module is also connected to the audio processing module. The DTMF module is also connected to the 3G / 4G module. The wireless entrance machine / enclosure machine also comprises a power module which has a voltage conversion function. By the 3G / 4G network communication, owners can receive visit information anytime and anywhere and control unlocking of the community gate / cell gate. The wireless entrance machine / enclosure machine also has multiple unlocking modes such as modes of APP unlocking, swiping unlocking, property management company unlocking, button unlocking and the like. Construction cost is low, and maintenance and upgrading are also very convenient.
Owner:CHONGQING HUIJU INTELLIGENT ELECTRONICS

Shale gas desorption pressure tester

InactiveCN104749321AReduce experimental measurement timeReliable dataMaterial analysisDesorptionTester device
The invention provides a shale gas desorption pressure tester. The tester mainly comprises a cylinder body, a base, an upper cover, a high-pressure micropump and a pressure sensor, wherein a glass observing window is arranged on the cylinder body; the pressure sensor is installed on the upper cover; a liquid inlet is formed in the central position of the upper cover; the upper cover is connected with the high-pressure micropump. Saturated brine with temperature consistent with the formation temperature is continuously added to the cylinder body in which shale cores are put and the value of pressure in the cylinder body immediately rises, linear bubbles generated in quantity because of desorption escape of adsorbed shale gases adsorbed on the surface of shale and in micropores can be observed from the observing window, when the linear bubbles begin reducing, the corresponding pressure value is the initial shale gas desorption pressure, and when the linear bubbles begin reducing in quantity, the corresponding pressure value is the main shale gas desorption pressure. The shale gas desorption pressure tester has the beneficial effects that adopting the direct measurement mode, compared with the prior art, the tester is more reliable and accurate in data, also has the effect of greatly shortening the experimental determination time and provides powerful guarantees for shortening the project period and ensuring the technology and economical efficiency of exploitation.
Owner:铜仁中能天然气有限公司

Alignment connector of concave-box wallboard

InactiveCN106320564AWith automatic centering functionImprove pre-registrationWallsAdhesiveEngineering
The invention provides an alignment connector of a concave-box wallboard, using for connecting the wallboard with a concave-box. The alignment connector is a ferrule with cavity in it. The space enclosed by two connected concave-boxes of the wallboard is matched with the shape of the ferrule. The wallboard is capable of automatic centering through the ferrule, meanwhile, a sol space is formed between the concave-box and the ferrule. An adhesive is injected to the openings of the ferrule then the cavity and the sol space are filled. The section of the ferrule is quasi hexagon. The ferrule is matched with the four slopes of the concave box, with the other two sides forming a sol space, or the sides of the ferrule are consecutive or intermittent cambered surface, then the ferrule is matched with the four cambered surfaces of the concave-box, and sol space is formed in the other non-matched sides. The alignment connector achieves a structural connection under the premise of the decorative surface is prevented from the destruction of the wallboard.
Owner:SHENYANG THRIVE INDALIZED HOUSING

Construction method of green energy-saving building

The invention provides a construction method of a green energy-saving building, and relates to the technical field of green construction. The method includes the following steps that first, construction waste is crushed to produce crushed stones through a crushing device, the crushed stones, base materials, water, a bacteriostatic agent and a water reducing agent are stirred and mixed through thecrushing device to produce a raw material A, and the raw material A and an expanding agent are mixed and stirred to obtain concrete; second, a rebar frame is erected and brick walls are piled up; third, the concrete in the first step is poured into the rebar frame in the second step, and wall embryos are obtained after the concrete solidifies; fourth, mortar is prepared, and the mortar is paintedon the wall embryos and statically dried for 3-4 days; fifth, putty is used for making the wall surfaces level, and static drying is carried out for 1-2 days after the putty is painted; and sixth, theputty is evenly coated with latex paint. The construction method of the green energy-saving building can use the crushing device to crush and mix the building waste to prepare the concrete, and crushing and mixing can be completed in one step, and thus the construction efficiency is improved and the cost of construction equipment is reduced.
Owner:广东正大建设有限公司
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