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

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 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 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.