37results about How to "Increase the amount of work" patented technology

The invention discloses a heat-pipe-based complementary electricity generation system for preheating condensed water of a coal-fired unit through geothermal energy. The system is mainly composed of a coal-fired generator unit subsystem and a geothermal energy preheating condensed water subsystem which are connected in parallel, and mainly comprises a coal-fired boiler, a turbine, a generator, a condenser, a condensate pump, a low-pressure heater, a deaerator, a high-pressure heater, a heat pipe, a heat pipe heat exchanger, a water pump and valves. Heat-pipe working medium absorbs geothermal energy at the evaporation section to form steam and is conveyed to the condensation section of the heat pipe heat exchanger through pressure difference, condensed water shunted by a certain stage of low-pressure regenerator outlet is heated, the condensed water heated to the corresponding temperature is injected into a coal-fired unit regeneration system again, steam extraction of the turbine is replaced, the generated energy of the coal-fired unit is increased, the shunting and re-injection positions and flows of the condensed water are adjusted through the valves, and gradient utilization of energy is achieved. The investment of power equipment is reduced, a re-injection well does not need to be dug, pump power is not consumed and corrosion and scaling are not generated in the geothermal energy development process, and energy conservation and emission reduction of a thermal power generating unit and large-scale development of the geothermal energy are facilitated.

The invention relates to a gob-side entry retaining method capable of avoiding dynamic pressure influence on coal mining. The gob-side entry retaining method comprises the following steps: dividing a coal bed into mining areas and dividing the mining areas into a plurality of sections; carrying out open-off cutting operation on the front ends of a tail gate and a haulage way of the first section, carrying out mining operation on open-off cuts forwards to form a working face, and forming a gob behind the mined working face; and repairing the haulage way of the first section from a position away Lm from the rear side of the working face in the gob, namely, a range less than Lm is used as a gob-side entry retaining temporary supporting section, and the gob-side entry retaining temporary supporting section is of a temporary steel frame supporting structure and is assisted by a monomer column for reinforced supporting. According to the gob-side entry retaining method, the gob-side entry retaining cost is reduced, the gob-side entry retaining difficulty is reduced, a certain distance is left between the gob-side entry retaining operation and the working face, the construction is not influenced with one another, a repaired roadway and an isolation strip are not suffered from high dynamic pressure influence before use, and the roadway is stable and firm and can be maintained easily.

The invention provides a subgrade structure for a side slope. The subgrade structure for the side slope includes a plurality of bearing structures, a retaining wall, a subgrade panel, subgrade filler,and the multiple bearing structures are embedded in a slope body in the direction of a slope toe line of the side slope at intervals; the retaining wall is installed on the bearing structures; the subgrade panel extends into the slope body, is loaded by the retaining wall and arranged in the direction of the slope toe line; and the subgrade filler is filled between the retaining wall and a slopesurface to support the subgrade panel. According to the subgrade structure for the side slope, the retaining wall is used for filling and slope closing, the subgrade panel is used for transferring road loads to the bearing structures through the retaining wall, the earth pressure behind the wall is reduced, safeties of a subgrade structure are consolidated, and the stability of a subgrade projectis improved. The use of the subgrade structure for the side slope can reduce the work amount of filling and excavation parties, reduce damages to the environment, is economic and environmental protection, and improve the economy and rationality of the subgrade structure.

The invention discloses a solar heat energy power system based on multistage pressurization condensation. The solar heat energy power system based on multistage pressurization condensation comprises a heat collecting device, a gasifying device, a turbine, a condensing device and a one-way hydraulic pump for realizing circulating communication through circulating pipes; circulating working mediums are filled in the circulating pipes; the heat collecting device and the gasifying device are mounted in a solar light collecting cover; the condensing device is mounted out of the solar light collecting cover, and includes a condensing pipe, a cooling fan and multiple pressurization mechanisms; the cooling fan is mounted above or below the condensing pipe; and the pressurization mechanisms are uniformly distributed at the middle part of the condensing pipe stage by stage. The solar heat energy power system based on multistage pressurization condensation is quicker in condensing speed, can reduce the condensation energy discharge and improve the heat energy conversion efficiency, and is stable in operation and adjustable in power.

The invention provides an integrated tower column container type machine room foundation and a construction method thereof and a communication signal tower. The foundation comprises a foundation bottom plate which is a concrete plate, a foundation core column which is a concrete column and is positioned on the foundation bottom plate in a rigid connecting manner, a core wall board which is a concrete wall board and is positioned on the foundation bottom plate and rigidly connected with the foundation bottom plate and the foundation core column, a periphery wall board which is a concrete wall board and is positioned on the foundation bottom plate and rigidly connected with the foundation bottom plate and the core wall board, and a foundation top plate which is a concrete plate and is positioned on the foundation core column, the core wall board and the periphery wall board in a rigid connecting manner. According to the integrated tower column container type machine room foundation, the tower column foundation of the communication signal tower and a supporting communication machine room are integrally designed, so that the total cost of the tower column foundation provided with the supporting communication machine room can be greatly decreased.

The invention discloses a durable steam turbine with the high heat energy utilization rate and high mechanical efficiency. The steam turbine is cylindrical overall and comprises a cylinder portion, cooling portions and a lubricating portion. The cylinder portion sequentially comprises a rotating shaft, a hollow impeller and a cylinder body from inside to outside. The hollow impeller is composed of a wheel body and wheel plates. The wheel plates are evenly distributed on the circumferential line of the outer wall of the wheel body. The included angle formed between each wheel plate and the axis of the wheel body is larger than 0 degree and smaller than 90 degrees. Direction-variable grids are formed on the inner wall of the cylinder body in the axis direction. The included angle between an air way of each direction-variable grid and the circular bottom face of the cylinder body is larger than 0 degree and smaller than 90 degrees, and the air ways on the direction-variable grids are perpendicular to the wheel plates on the hollow impeller in a one-to-one corresponding manner when the cylinder body is closed. The durable steam turbine has the beneficial effects that the dead weight of the steam turbine is reduced greatly by the adoption of the hollow impeller, and bearings are more durable; and the airflow direction is changed artificially through the direction-variable grids, the heat energy required for maintaining acting can be reduced, the heat energy utilization rate of the steam turbine can be increased, and mechanical energy and mechanical efficiency can be improved.

The invention discloses a biomass heat energy power system based on working medium circulation condensation. The biomass heat energy power system comprises a gasification device, a turbine, a condensing unit and a one-way hydraulic pump which circularly communicate with one another sequentially through circulating pipelines. The circulating pipelines internally contain a circulating working medium. A heat collection device is installed outside the gasification device and communicates with a biomass furnace. The gasification device comprises a gasification cavity and a preheating cavity pipe. A pre-condensation cavity is arranged at the exhaust port position of the turbine, and the preheating cavity pipe makes parallel contact with the pre-condensation cavity. The biomass heat energy power system based on working medium circulation condensation can accelerate condensation, improve the efficiency of the turbine and reduce the heat energy exhaust amount, and therefore the heat energy conversion efficiency is improved.

The invention discloses a heat energy power system comprehensively utilizing waste heat of an acting pump. The heat energy power system comprises a heat source, a gasification reactor, the acting pump, a condenser, a pressure pump and a circulation pipeline. Cyclic communication of the gasification reactor, the acting pump, the condenser and the pressure pump is achieved through the circulation pipeline. The gasification reactor makes contact with the heat source. A preheating cavity is further formed in the front end of the gasification reactor. A pre-condensation cavity is formed in the position of an exhaust port of the acting pump. The preheating cavity and the pre-condensation cavity make contact with each other in parallel. According to the heat energy power system comprehensively utilizing waste heat of the acting pump, the pressure difference between an air inlet and the exhaust port of the acting pump can be increased, and the converting efficiency of a turbine is improved; and meanwhile, the heat of working media in the circulation pipeline is comprehensively utilized, and the heat conversion efficiency is improved.

The invention discloses a pressurization and condensation thermal energy power system utilizing thermal drained water of a nuclear power station. The pressurization and condensation thermal energy power system comprises a heat collecting device, a gasifying device, a turbine, a condensing device and a one-way hydraulic pump, wherein the heat collecting device, the gasifying device, the turbine, the condensing device and the one-way hydraulic pump circularly communicate in sequence through a circulating pipeline. Circulating working media are contained in the circulating pipeline. The heat collecting device and the gasifying device are mounted in a thermal drained water channel of the nuclear power station. The condensing device is mounted in a low-temperature deep-water zone and comprises a condensing pipe, a cooling fan and a pressurization mechanism, wherein the pressurization mechanism is mounted at the middle end of the condensing pipe and comprises a pressurization turbine and a turbine pressure regulator, and the turbine pressure regulator is connected with the pressurization turbine in a controlling mode. The pressurization and condensation thermal energy power system utilizing thermal drained water of the nuclear power station has a high condensing rate and can reduce condensation energy discharge and improve thermal energy conversion efficiency, operation is stable, and power is adjustable.

The invention provides a foundation pit supporting and protecting structure. The foundation pit supporting and protecting structure is suitable for being set around the periphery of a foundation pit,and comprises reinforced composite pile bodies, lapping piles, and supporting structures. The reinforced composite pile bodies are suitable for being buried in the soil, and comprise rigid core pilesand semi-rigid pile castings covering the periphery of the pile castings. The lapping piles are rigid or semi-rigid pipes. The lapping piles are adjacent to the reinforced composite pile bodies and arranged in a periodic linear array mode and in a ring shape. The supporting structures are fixedly connected with the reinforced composite pile bodies. At least part of the supporting structures are suitable for being arranged above the soil layer and supporting the structure in the foundation pit. By arranging the reinforced composite piles, the complementary enhancement of the rigid piles and thesemi-rigid piles is formed, which not only guarantees the strength of the pile bodies, but also improves the binding force between the pile bodies and the surrounding soil. By arranging lapping piles, the shear capacity of the surrounding soil layer is improved, the horizontal bearing capacity of the reinforced composite piles is improved, and the ability of the supporting structures to resist the lateral force of the surrounding soil is increased. The supporting structures can be used as auxiliary supports to reduce the requirement to backfill pressure coefficient of the surrounding backfillsoil and reduce the construction difficulty.

The invention discloses a gravel pile foundation stilling pool on a deep covering layer. The gravel pile foundation stilling pool comprises the covering layer, a bedrock layer, a bottom plate and a side wall, the bottom plate comprises two side bottom plates and a plurality of middle bottom plates, the middle bottom plates are arranged between the two side bottom plates, the bottom of the side wall is connected with the upper surfaces of the side bottom plates, transverse joints are arranged between the middle-section bottom plates and the side bottom plates, transverse joints are also arranged between every two adjacent middle-section bottom plates, a concrete cushion layer is arranged on the lower surface of each bottom plate, vertical drainage channels are formed in the bottom plates and are embedded into the concrete cushion layers, gravel piles are arranged on the lower surfaces of the concrete cushion layers and penetrate through the covering layer, and the pile bottoms of the gravel piles are embedded into the bedrock layer, meanwhile, the invention further discloses a construction method of the gravel pile foundation stilling pool on the deep covering layer. On the premise of reducing excavation of the covering layer foundation of the stilling pool and the engineering amount of structural concrete, the bearing capacity of the covering layer foundation is improved, the structural stability and safety of the stilling pool can be guaranteed, and the engineering amount and the engineering investment are saved.

The invention discloses a thermal energy dynamic system of oil field exhaust gas based on cyclic condensation of working medium comprising a gasification device, a turbine, a condensation device and a one-way hydraulic pump which are successively cycled and communicated through a circulating pipeline; circulating work medium is contained in the circulating pipeline; a thermal-arrest device which is installed outside the gasification device is communicated with an oil field exhaust gas burner comprising an exhaust gas inlet, an oil field exhaust gas induced draught fan, an exhaust gas combustion chamber, a continuous fire guider and a hot gas discharge pipe; the gasification device comprises a gasification chamber and a preheating chamber; an exhaust port of the turbine is provided with a pre-condensing chamber which is in touch with the preheating chamber in parallel. The thermal energy dynamic system of oil field exhaust gas based on cyclic condensation of working medium can accelerate the condensation, improve the efficiency of the turbine, reduce the heat expelled outside, and thereby enhance the heat energy conversion efficiency.

The invention discloses a bladeless turbine engine. The bladeless turbine engine comprises a cylinder, a rotating shaft, a plurality of empty chamber disk bodies, a plurality of tie bars, a plurality of heat pipes, a steam inlet pipe, a spray pipe group, a separation plate and a steam exhaust pipe. A certain pressure and temperature of viscous fluid spirally and centripetally flows in the cylinder from outside to inside along the circumferential direction after being expanded and accelerated through a spray nozzle and the plurality of empty chamber disk bodies and the rotating shaft are driven to rotate and do work together under the action of shear force of the fluid in a boundary layer. The plurality of different diameters of circular ring tie bars are arranged in every empty chamber disk body for reinforcement, a filled gas cooling medium is used for absorbing the heat dissipation capacity of every empty chamber disk body, and the heat is transferred into an inner chamber of a hollow drum of the rotating shaft from an inner chamber of every empty chamber disk body through the heat pipes to be absorbed through the low temperature exhaust steam eventually. According to the bladeless turbine engine, the energy conversion efficiency is high, the structure is firm and durable, the tensile strength and distortion strength are high, the deformation caused by overhearing is effectively prevented, the unit power is large, and the future application process of the bladeless turbine engine is greatly promoted.

The invention provides an integrated tower column container type machine room foundation and a construction method thereof and a communication signal tower. The foundation comprises a foundation bottom plate which is a concrete plate, a foundation core column which is a concrete column and is positioned on the foundation bottom plate in a rigid connecting manner, a core wall board which is a concrete wall board and is positioned on the foundation bottom plate and rigidly connected with the foundation bottom plate and the foundation core column, a periphery wall board which is a concrete wall board and is positioned on the foundation bottom plate and rigidly connected with the foundation bottom plate and the core wall board, and a foundation top plate which is a concrete plate and is positioned on the foundation core column, the core wall board and the periphery wall board in a rigid connecting manner. According to the integrated tower column container type machine room foundation, the tower column foundation of the communication signal tower and a supporting communication machine room are integrally designed, so that the total cost of the tower column foundation provided with the supporting communication machine room can be greatly decreased.

The gob-side retaining method for avoiding the influence of dynamic pressure in coal seam mining includes the following steps: divide the coal seam mining area, and divide the mining area into several sections; The front end of the roadway is opened and cut, and the mining operation is carried out on the front of the cut to form the working face, and the goaf is formed behind the working face after mining; in the goaf, the position L meters behind the working face is started. Re-repair the first section of the transport level roadway, within the range less than L meters is the temporary support section of the gob-side entry retention. This section adopts a steel frame temporary support structure and is supplemented by a single column to strengthen the support. The invention reduces the cost and difficulty of retaining the roadway, and the work of retaining the roadway and the working face are separated by a certain distance, and the construction does not affect each other. The roadway is more stable and easy to maintain.

The invention discloses a mobile robot in a pipe and a nondestructive detection device of the mobile robot in the pipe. A processor and an image sensor, a lighting device, a storage module, a sonar ultrasonic receiving and sending module, a power module and a power supply module which are correspondingly connected with the central processing unit are arranged in a robot body. The image sensor is used for acquiring an image in a pipeline, and the image is stored in the storage module. The lighting device is used for improving the brightness in the pipeline. The sonar ultrasonic receiving and sending module is used for performing data transmission with the outside world. The power module is used for controlling movement of the robot in the pipeline. The power supply module is used for providing electric power for the robot. The nondestructive detection device comprises a master station terminal, a slave station terminal and the mobile robot in the pipe. The master station terminal performs instruction control on the robot and receives data with the slave station terminal as a relay. The mobile robot in the pipe and the nondestructive detection device of the mobile robot in the pipe solve the problem of shielding of a wireless signal of a metal pipeline, the position of the in-pipe detection robot in the pipeline can be detected in real time, and therefore the fault position can be fast acquired when a pipeline fault is found.

The invention discloses a hand guided roof crack repairing machine. The hand guided roof crack repairing machine comprises a stand composed of a chassis and an armrest frame which is obliquely arranged towards the back, a slotting plate and a pouring mechanism, traveling wheels are arranged below the chassis, the slotting plate is vertically arranged at the lower part of the front end of the chassis, the two lateral surfaces thereof are crossed in the working direction of the slotting plate to form a slotting edge for widening the crack opening, the pouring mechanism comprises a hopper, a pouring pump and a pouring pipe, a spring slot is formed in the pipe wall of the pouring pipe, one end of a spring arranged in the spring slot is fixed at the lower end of the spring slot while the other end is connected with the inner wall of a limit pipe which sleeves the pouring pipe, the pipe diameter of the limit pipe is larger than the width of the crack opening, and a ball is arranged at the bottom of the limit pipe. The limit pipe is clamped in two sides of the crack opening and jacked by means of the material gravity and the pouring impact force, the ball at the lower part of the limit pipe rolls along the crack edge to enable a nozzle of the pouring pipe to pour material in the crack along the crack direction, the material is saved, and the cost is lowered.