584results about How to "Reduce the amount of construction" patented technology

A pneumatically driven setting tool for driving in fastening elements, includes a chamber (17) forming a storage chamber (22) for storing the pressure medium produced by the compression device (30, 130) and an expansion chamber (26) adjoining the drive-in piston (13), which is displaceable in a guide (12), at a side of the drive-in piston (13) remote from the piston stem (14), communicating with the storage chamber (22), and having an opening (18) connecting the expansion chamber (26) with the drive-in piston (13), at least one check valve (44, 54, 142) arranged between the compression device (30, 130) and the chamber (17), and a piston retaining device (47) for retaining the drive-in piston (13) in its initial position (80) in which the chamber (17) is sealed against the guide (12).

This invention discloses a piezoelectric generation method by using road surface vibration energy, which lays piezoelectric devices inside the road or uses them as the as the road components directly and utilizes the vibration energy to generate electric energy provided to road lamps or other road installations or energy storage devices and electric nets. The system includes: a piezoelectric device a power transforming energy generated by the piezoelectric devices to be stored in an energy storage devices, road lamps or an energy storage device, said piezoelectric device is connected with the transforming device, which is connected with lamps and energy storage device.

The invention relates to a sensor network node device of security monitoring of a natural gas pipe network, mainly comprising a power module, a sensor module, a processor module and a wireless communication module. The node acquires parameters related to the security of pipelines and ambient by an acceleration sensor, a gas sensor and a temperature sensor in the sensor module under the control of the processor module; the nodes carry out data interaction by the wireless communication module, construct self-organization and multi-hop wireless sensor network, and finally transmit the information related to the safety at the nodes to a monitoring center. The wireless sensor network technology is adopted to carry out on-line real-time monitoring to the natural gas pipe networks of cities, and can find insecure factors of damage, leakage and the like of the construction in time, improve the security of operation of the natural gas pipe networks and reduce manual maintenance cost.

A thermodynamic machine for the absorption and emission of heat at different temperatures has at least one thermodynamic device with at least one membrane separating a gas phase and a liquid phase provided for transport of heat, wherein the at least one membrane is permeable for at least one component contained in the gas and liquid phases. The at least one membrane is a porous membrane or a solution diffusion membrane or a modification of the porous membrane or a modification of the solution diffusion membrane.

The invention relates to a general technology of wheeltrack magnetic suspension, belonging to the technical field of earthbased track traffic. The general technology of wheeltrack magnetic suspension mainly comprises a wheeltrack magnetic suspension dualpurpose trackway, an electromagnetic trackway, an electromagnetic switching turnout, a suspension-oriented technology and a matched train, and is characterized in that the wheeltrack magnetic suspension dualpurpose trackway can be mutually connected with a pure suspension trackway and a common wheeltrack trackway to form a trafficable trackway communication system; the corresponding position relationship of a long stator winding and a suspension trackway which are arranged in the pure magnetic suspension trackway is consistent with the position relationship of the long stator winding and the suspension trackway which are arranged in the wheeltrack magnetic suspension dualpurpose trackway; and the track space of two steel rails in a common wheeltrack trackway is equal to the track space of two steel rails in the wheeltrack magnetic suspension dualpurpose trackway. The general technology of wheeltrack magnetic suspension combines the wheeltrack technology with the magnetic suspension technology, is used for meeting the requirement of the long-distance high-speed transportation, and has the advantages of low construction cost, high versatility, energy saving, and environmental protection, etc.

A pneumatically driven setting tool for driving in fastening elements, includes a chamber (17) forming a storage chamber (22) for storing the pressure medium produced by the compression device (30, 130) and an expansion chamber (26) adjoining the drive-in piston (13), which is displaceable in a guide (12), at a side of the drive-in piston (13) remote from the piston stem (14), communicating with the storage chamber (22), and having an opening (18) connecting the expansion chamber (26) with the drive-in piston (13), at least one check valve (44, 54, 142) arranged between the compression device (30, 130) and the chamber (17), and a piston retaining device (47) for retaining the drive-in piston (13) in its initial position (80) in which the chamber (17) is sealed against the guide (12).

The invention discloses a construction method for cropping a bridge pile foundation at a sandy gravel stratum of an abyssal region. A passive underpinning principle is adopted; firstly, an enclosing structure is constructed behind an existing bridge abutment by a certain distance, and a temporary cofferdam is constructed in a river, so that operation space is provided; an underpinning pile foundation and an underpinning bearing table are constructed in the enclosing structure, and dead loads of an existing bridge is transferred to an underpinning pile and the underpinning bearing table; and a pile breaking channel is dug below the underpinning bearing table, and the pile is finally removed with a manual hole digging method. According to the method, on the premise that the construction quality is guaranteed, the construction schedule can be quickened, the manufacturing cost is reduced, and influences of underpinning construction on existing buildings, pipes and ground transportation are reduced; and the construction method has the technical advancement and has social benefits and economic benefits.

An automotive road milling machine, in particular large milling machine, for milling a ground surface or traffic surface, with a chassis provided with a front axle and a rear axle, consisting of crawler track units or wheels, a machine frame carried by the chassis with lateral outer walls and a longitudinal centre-line, a milling drum supported at the machine frame between the crawler track units or wheels of the front axle and the rear axle, where one front end of the milling drum reaches as far as an outer side of the machine frame called the zero side for the purpose of close-to-edge milling, and an operator station with a platform for the machine operator, it is provided that the part of the machine frame located on the zero side in front of the platform of the machine operator when seen in the direction of travel is set back inwards in such a manner that a recess running in vertical direction and open towards the outer side, as well as towards the bottom and towards the top is formed in the machine frame, the said recess widening downwards and towards the front when seen in the direction of travel.

The invention relates to an adjustable elastic pipeline support and hanger with a limiting function, and belongs to the technical field of vibration noise control. The support and hanger comprises a composite hoop, a backing board, a cushion block, an intermediate block, a bidirectional threaded sleeve, a locknut, an elastic rubber layer, a sleeve and a base, wherein an external pipeline is fixed through the composite hoop, the cushion block and the backing board; two ends of the bidirectional threaded sleeve are in threaded connection with the backing board and the intermediate block respectively, height adjustment of the support and hanger is realized by adjusting the bidirectional threaded sleeve, and the adjusting range is controllable and accurate; the intermediate block is in support transmission with the sleeve and the base through the elastic rubber layer, and elastic vibration isolation is realized through reasonable design of the elastic rubber layer. The adjustable elastic pipeline support and hanger is reasonable in structural design, compact in structure and convenient to mount and has larger mounting advantages under the condition of arrangement with high space requirement.

The invention relates to an adjusting method and a system of a river channel flowing field in a fishway inlet. The system comprises a shunt wall; the horizontal section of the shunt wall is a strip with longitudinal axis as a straight line; a certain angle is formed between the longitudinal axis of the shunt wall and the flowing direction of a river channel; a certain distance is kept from a starting end of the shun wall to a river bank provided with the fishway inlet; and the height of the shunt wall is from the water bottom to above the water surface. A flowing field adjusting facility is adopted to divide a water current flowing field in the fishway inlet into an outer side flowing field and an inner side flowing field; a flowing field suitable for migratory fishes is generated on the inner side flowing field; meanwhile, the outer side flowing field is prevented from disturbing the inner side flowing field; and a high-flowing-speed belt in a shunt inlet is used for stopping the fishes from crossing over the fishway inlet. The system uses the river water current power for adjusting the flowing fields, effectively adjusts local flowing fields of the river channel, is suitable for migration gathering of target fishes, and provides convenience for arrangement of the fishway inlet. The flowing field adjusting system is simple in structure, is low in construction amount, needs no more maintenance, is economical, and is suitable for various hydraulic projects.

The invention brings forward a combined system for measuring blast furnace burden surface. Three apparatuses including a multiple-input-multiple-output MIMO radar and antenna array, a visible light or infrared light video camera and a laser rangefinder are combined to form a system. The device provided by the invention comprises a video monitoring system and a laser rangefinder system. A multiple-input-multiple-output MIMO radar burden surface measuring system, the video monitoring system and the laser rangefinder system are integrated into a blast furnace roof radar system cooling protective cover. The device also comprises a display and image processing system. The display and image processing system is adopted to simultaneously realize display and comparison of three measuring systems and carry out data fusion, data exchange and data verification. On a computer, one or more different measuring combinations are respectively selected according to different situations so as to realize dynamic measuring requirements of burden surface of different precisions, different imaging speeds and different resolutions and provide different measuring methods.

Disclosed are a non-dismantling die cast-in-place lightweight thermal insulation wall formboard, a thermal insulation wall and a construction method thereof. The formboard comprises an inner formboard unit, an outer formboard unit and opposite-drawing connectors connecting the formboard units; the inner formboard unit comprises a formboard frame, steel bar grid frames connected between inner circles of the formboard frame, steel bar clamps connected to the cross points of the steel bars of the steel bar grid frames and a formboard core filling the inner side of the formboard frame; the inner formboard unit and the outer formboard unit are the same in structure and are connected at two ends of the opposite-drawing connector symmetrically; the steel bar clamps of the inner formboard unit and outer formboard unit are corresponded horizontally and are connected through the opposite-drawing connectors. The thermal insulation wall is simple in structure, by means of the double-layer wall formboard, the wall thickness consistence is guaranteed, the strength performance requirements are met, the thermal insulation wall is convenient to construct, the matching bar, core column and tie beam arrangement procedures are omitted, construction cost is lowered, constructing efficiency is improved, and the formboard can widely applied to wall construction.

The invention discloses a remote monitoring system for a wireless fire smoke sensing alarm, which is characterized by comprising a monitoring device (1) at a monitoring center, a fire alarm monitoring host machine (2), a wireless aural and visual alarm device (3), a wireless manual alarm button (4) and a wireless smoke-sensing fire detection alarm (5). The remote monitoring system has the advantages of flexible construction, convenience for installation and debugging, small construction quantity, great shortening in construction period, convenience for maintenance and service, reduction in maintenance cost, simple operation, easiness and convenience for installation, high sensitivity, safety and reliability.

An automotive road milling machine, in particular large milling machine, for milling a ground surface or traffic surface, with a chassis provided with a front axle and a rear axle, consisting of crawler track units or wheels, a machine frame carried by the chassis with lateral outer walls and a longitudinal center-line, a milling drum supported at the machine frame between the crawler track units or wheels of the front axle and the rear axle, where one front end of the milling drum reaches as far as an outer side of the machine frame called the zero side for the purpose of close-to-edge milling, and an operator station with a platform for the machine operator, it is provided that the part of the machine frame located on the zero side in front of the platform of the machine operator when seen in the direction of travel is set back inwards in such a manner that a recess running in vertical direction and open towards the outer side, as well as towards the bottom and towards the top is formed in the machine frame, the said recess widening downwards and towards the front when seen in the direction of travel.

The application relates to a water treatment project monitoring system based on a wireless sensor network. As present sewage treatment equipment has limited processing ability to use PLC data and a slow running speed, further improvement in system performance is restricted. The system comprises a central control system (2), which is connected with a group of wireless sensor network nodes (1) and comprises an industrial personal computer (6). The industrial personal computer (6) is connected with a wireless sensor master station (7). The wireless sensor network node comprises a data collecting module (3) which is connected with a data processing and controlling module (4). The data processing and controlling module is connected with a communication module (5). The system is used for monitoring the system of the sewage treatment equipment.

The invention relates to a method and system for comprehensively purifying, collecting and utilizing overpass rainwater. The system disclosed by the invention comprises a rotational flow separation module, a high-efficiency purification module and a plastic water storage module. According to the method, based on the principle of gravity rotational flow sand setting technology and absorption, filtration and purification technology, emission, collection and purification of overhead overpass rainfall runoff are realized, suspended particles and organic and inorganic pollutants are respectively eliminated efficiently; furthermore, water storage and reuse are carried out to form integrated comprehensive technology for collecting and reusing purified rainwater; multiple effects such as fast elimination of rainwater on an overpass, water-saving irrigation of a green belt below an overpass and pollution control of overpass roadway runoff can be achieved simultaneously; and the method and the system for comprehensively purifying, collecting and utilizing overpass rainwater disclosed by the invention have wide application prospect in the fields of municipal construction and non-point source pollution control.

The invention provides a suspension bridge rock mass and reinforced concrete plate composited type anchorage and a construction method thereof. The construction method comprises the steps that 1, the composited type anchorage is located on one side or the two sides of a suspension bridge, a front anchor chamber is excavated on the side slope side of a mountain, a worker enters the mountain through a construction hole with a small cross section to excavate a back anchor chamber, and rock masses between the front anchor chamber and the back anchor chamber are reserved to replace a reinforced concrete anchor plug; 2, hole sites are quincuncially arranged in the front anchor surface and the back anchor surface, and anchor cable holes are drilled from the front anchor surface to the back anchor chamber; 3, a reinforced concrete anchor plate is poured in the back anchor chamber, and anchor holes are reserved; 4, anchor cables penetrate through the reserved rock masses and the reinforced concrete anchor plate to the back anchor chamber through the anchor cable holes from the front anchor chamber and are anchored; and 5, a main cable is connected with the anchor cables through a cable splaying saddle. According to the suspension bridge rock mass and reinforced concrete plate composited type anchorage and the construction method thereof, the resistance of the rock masses is made full use of, excavation of large-size earth rock is avoided, construction of large-size concrete is reduced, the influence on the bridge area ecological environment is small, the construction cost of the composited type anchorage is significantly reduced compared with a tunnel type anchorage, and economic benefits are great.

The invention discloses a stress removing and reinforcing method used for a steel construction truss. The stress removing and reinforcing method used for the steel construction truss is characterized by comprising the steps of: 1) detecting the actual stress state of the steel construction truss; 2) establishing a steel truss calculation model, and calculating the theoretical stress state of the steel construction truss; 3) analyzing the error between the actual stress state and the theoretical stress state of the steel construction truss; 4) correcting the steel truss calculation model by taking the actually-detected stress state as a reference; 5) adopting a revised steel truss computation model to carry out a simulation experiment; 6) carrying out a feasible optimal steel truss stress removing and reinforcing scheme design; 7) formulating a steel truss stress removing and reinforcing construction drawing; 8) carrying out the steel truss stress removing and reinforcing construction; and 9) monitoring the steel truss stress removing and reinforcing construction process. Compared with the prior art, the stress removing and reinforcing method has the beneficial effects that large construction mechanical equipment and unloading operation are not needed, and the original structure can be maintained, the construction volume is small, the consumption of materials is low, the construction is convenient, the cost is low and the reinforcing effect is good.

The invention relates to a super-large-diameter coal seam drilling pipe insertion goaf gas extraction technology. The technology is characterized by the steps that a measure roadway is constructed behind protection coal pillars reserved on the side of a gas return roadway, a scraper conveyor is arranged on the measure roadway, multiple large-diameter drill holes are drilled from the protection coal pillars reserved in a coal seam to the corners of the gas return roadway through the measure roadway and a large-diameter spiral drilling machine, a drill hole casing pipe is inserted into each large-diameter drill hole, the drill hole casing pipes are connected with an extraction pipeline, and then gas extraction is conducted on the casing pipe; the measure roadway is set to be a gas inlet roadway of a next stoping face after being used, one roadway is used for two purposes, the construction amount of the protection coal pillar roadway is reduced, a roadway flow and a connection roadway are omitted, no collapse hole can occur due to usage of the drill hole casing pipes, a part of the drill hole casing pipes can be recycled and reused, and it is guaranteed that the gas dose not leak; meanwhile, investment is saved, management is easy, the extraction effect is improved, and complete mechanization of the whole coal mining engineering process and auxiliary process is achieved.

The invention discloses a hydraulically-driven roadblock machine, which comprises a base, a cover plate and a hydraulic driving device. The cover plate is installed on the base. The hydraulic driving device is coupled on the cover plate and comprises a hydraulic source, a transmission mechanism, a rolling shaft, an inclined block, a cover plate supporting rod and an elastic piece. One end of the cover plate is fixedly hinged on the base. The hydraulic source is coupled to the rolling shaft through the transmission mechanism. The rolling shaft is arranged in a way that the rolling shaft can be driven by the transmission mechanism and can roll on the inclined block to move up, wherein the upwards moving direction faces towards one side of the fixed end of the cover plate. The elastic piece is arranged in a way that the elastic piece can transmit force to the rolling shaft to enable the rolling shaft to be restored downwards along the inclined block when the hydraulic source is turned off. The first end of the cover plate supporting rod is hinged on the rolling shaft. The second end of the cover plate supporting rod is hinged on the internal side of the cover plate. The hydraulically-driven roadblock machine provided by the invention ahs the advantages of compact and ingenious structure, small size, light weight, small thickness and wide application scope.

The invention relates to a screen window of a casement window, in particular to an external type vertical pulling invisible screen window of the casement window, which is low in cost and simple to produce, enables a window screen to be fully arranged inside a window frame and has a unique cross section. The external type vertical pulling invisible screen window of the casement window comprises the window frame fixedly connected with the wall, a casement window sash fixed in the window frame and a roller shutter screen window, wherein the roller shutter screen window is installed outside the window frame and composed of a screen box (4) and the window screen (5). The invisible screen window further comprises a connecting sectional bar (1) connected with the window frame and the roller shutter screen window. The connecting sectional bar (1) is composed of a window frame connecting sectional bar (101) and a screen window connecting sectional bar (102) which are symmetrically arranged, wherein the window frame connecting sectional bar (101) is connected with the window frame and the window sash, and the screen window connecting sectional bar (102) is connected with the window frame and the roller shutter screen window. A recessed semi-sealed installing cavity (103) for installing the screen box (4) in concealing mode is arranged at the position of the screen window connecting sectional bar (102) connected with the screen box (4) so as to enable the window screen (5) to be fully arranged in the window frame after unfolding. The external type vertical pulling invisible screen window of the casement window is reasonable in design, simple in structure and convenient to construct, and achieves invisibility.

The invention discloses a high efficient gas extraction method of long drill hole directional segmental fracturing in a soft and low permeability coal seam. The method comprises the following steps that firstly, a kilometer drilling rig passes through the coal seam from a coal seam floor rock tunnel to a roof rock seam to drill a horizontal fracturing hole, the horizontal fracturing hole is controlled to be in a rock stratum with a distance of 0.5 to 1 meter from the top boundary of the coal seam; then, the sectional downward directional perforating is carried out in the horizontal fracturinghole section to communicate with the lower target coal seam, and the target coal seam is subjected to step-by-step fracturing by adopting a hydraulic jet sectional fracturing technology; after fracturing of the horizontal fracturing hole is completed, a drainage gas production hole is drilled in the target coal seam again in the liquid discharging process, a full-sleeve pipe protection hole technology is adopted, and a sleeve pipe is arranged to protect the holes while drilling ; and finally, hole sealing and drainage are conducted on the horizontal fracturing hole and the drainage gas production hole, and after the liquid level is reduced, the drainage gas production hole is used as a extraction hole to draw gas. The method can effectively overcome the problems of gas extraction in the soft and low-permeability coal seam, such as the difficulty of hole formation, the poor effect of fracturing and permeability increasing and the fracture blocking by fracturing fluid, and realize the high efficient gas extraction in the soft and low permeability coal seam.

The invention provides a design method for roof rainwater drainage systems, which comprises the following steps of: calculating the volumetric flow rate of water flowing through a rainwater hopper; calculating the mass flow rate of an aerified water flow; calculating the pressure loss of each pipeline section based on the mass flow rate of the aerified water flow; calculating the values of negative pressures on a hanged pipe and a stand pipe at the junction point of the tail end of the hanged pipe and the top end of the stand pipe; judging whether the values of negative pressures on the hanged pipe and the stand pipe at the junction point satisfy the design requirements of a pipe system or not, if so, completing the design process; and otherwise, designing the value of each pipe diameter again, and then calculating again. Therefore, in the drainage system designed according to the design method for roof rainwater drainage systems provided by the invention, the pipes of the drainage system are thin and short in length, so that the application quantity and construction quantity of the pipes can be reduced, thereby reducing the cost of the whole drainage system. Meanwhile, the drainage system is additionally provided with an exhaust device, therefore, the hidden troubles such as roof rainwater ponding and leakage as well as manhole sweating can be avoided.

The invention discloses a method and system for lane vehicle speed detection and data fusion based on an electronic toll collection system and an active positioning system. According to the method and system, the active positioning technology is utilized for obtaining true real-time position information of vehicles in electronic tags and position interval time so that the vehicle speed can be calculated more accurately; besides, data fusion is conducted on various obtained vehicle speeds, multiple calculated vehicle speeds can be fused and processed, so that calculation accuracy is improved, a wrong vehicle speed is removed, and the lane vehicle speed is detected accurately. For a new electronic toll collection system lane, a ground sensing coil, a video camera and other additional facilities are not needed, the vehicle speed can be measured highly accurately as long as a road side unit of the electronic toll collection system is arranged, and therefore the construction quantity and equipment cost are reduced.

The invention discloses a method used for carrying and launching a drilling platform in ocean engineering, and relates to the technical field of ocean engineering equipment and large ship construction. The method can be used for carrying and launching operations of various ocean drilling platforms and large ships, and comprises the following steps of: after the drilling platform finishes folding on a dock, designing a sideway, arranging a slide plate and remolding a semi-submerged barge so as to carry, load and fix the semi-submerged barge on water and launch the drilling platform. The method has a great influence on safe completion and delivery of maritime products in a maritime product manufacturing process. The carrying and launching process method has the characteristics of safe and reliable operation, high constructability, high universality, less construction volume, short construction time, less investment, and remarkable economic benefit.

The invention discloses a cable tunnel positioning and broadcasting system employing VLC-PLC technologies. The cable tunnel positioning and broadcasting system comprises a personnel positioning and broadcasting subsystem based on the VLC technology and a high-rate big data transmission subsystem based on the PLC technology; the personnel positioning and broadcasting subsystem comprises a PC broadcasting main station located outside a tunnel, and lighting and communication integrated LED light sources and a mobile talkback terminal both located in the tunnel; the high-rate big data transmission subsystem comprises at least one PLC transmission network; all the PLC transmission networks are communicated by using power lines; each PLC transmission network comprises a PLC main station and at least one PLC base station; the lighting and communication integrated LED light source comprises a fixed-point light signal receiving / transmitting processing unit and a PLC interface module; the fixed-point light signal receiving / transmitting processing unit is correspondingly connected with the PLC base station via the PLC interface module; the mobile talkback terminal comprises a talkback device and a mobile terminal optical signal receiving / transmitting processing unit connected with the talkback device. The cable tunnel positioning and broadcasting system employing the VLC-PLC technologies has the advantages of convenience for mounting, cost saving, high transmission efficiency and no electromagnetic interference.

A hydraulic clutch has an impeller wheel, a turbine wheel with a turbine wheel shell, and a torsional vibration damper. The turbine wheel is drivable by the impeller wheel. The turbine wheel shell is mounted in an axial and radial sliding bearing so as to be rotatable with respect to a turbine wheel hub. The torsional vibration damper is arranged on the turbine wheel hub so as to be fixed with respect to rotation relative to it. The turbine wheel hub is drivable by the turbine wheel via the turbine wheel shell and the torsional vibration damper. The turbine wheel shell acts on the torsional vibration damper via a connection element. The axial sliding bearing is spatially offset with respect to the radial sliding bearing.