7results about How to "Realize Regulatory Control" patented technology

This utility model discloses a felt resistance support, including a support, a fixing block on the side of the support, a sleeve on the fixing block, a first felt sheet inside the sleeve that contacts the side of the fixing block, a groove at the end of the sleeve away from the support, a second felt sheet inside the groove, a pressing column inserted into the fixing block that contacts the side of the first felt sheet, a resistance spring and a housing on the outer side of the sleeve, the resistance spring being located between the sleeve and the housing, an iron pin on the resistance spring, a sliding groove on the inner side of the housing, the iron pin being slidably connected in the sliding groove, and an adjustment component on the support. This utility model adjusts the force of the pressing column pressing the first and second felt sheets by screws and nuts, thereby adjusting the frictional resistance between the sleeve, the pressing column, and the fixing block, thus achieving adjustment and control of the sleeve's rotation speed.

The application provides a five-degree-of-freedom hybrid magnetic suspension bearing, a motor and a control method thereof. The magnetic suspension bearing comprises an axial stator core, front and rear radial stator cores, first and second permanent magnet rings respectively arranged between the radial stator cores and the end portions of the axial stator core, the axial stator core comprises an axial stator yoke portion and first and second axial stator rings arranged on the axial stator yoke portion and extending in the radial direction of the axial stator yoke portion, the first and second axial stator rings are opposite to each other and a first annular space is formed between the first and second axial stator rings, the edge region of a rotating shaft thrust disc is located in the first annular space, and only a group of axial control coils is arranged in the first annular space. The application can realize adjustment and control of the axial position of the rotating shaft thrust disc by controlling only the group of axial control coils, the control logic is simpler, the length of the corresponding rotating shaft can be shortened, and the rotating speed of the rotating shaft is improved.

This invention discloses a tunnel shotcrete rebound recovery device, which includes a transport vehicle equipped with a collection device for collecting rebounded concrete, a mixing device for thoroughly mixing the collected concrete, and a compensation device for compensating the mixed concrete with slurry. The collection device includes a collection funnel with two aggregate plates inclined to both sides, and a storage bin at the bottom of the collection funnel. The mixing device includes a mixing drum driven by a drive motor, with an inlet and an outlet at both ends of the mixing drum. A conveying mechanism is provided between the storage bin and the inlet to transport a fixed amount of concrete from the storage bin to the mixing drum. A discharge funnel is located below the outlet, and a pump is located below the discharge funnel, with a conveying pipe at the outlet end of the pump. This solution enables automated recovery and utilization of rebounded concrete, avoiding resource waste.

The utility model relates to the technical field of chemical processing, and discloses a deacidification reaction tower with an adjustable moving blade structure, which comprises a tank body, the top of the tank body is provided with a tank cover, the bottom of the inner wall of the tank cover is fixedly connected with a connecting pipe, the bottom of the inner wall of the connecting pipe is fixedly connected with a bottom plate, the top of the bottom plate is fixedly connected with a motor, and the top of the motor is fixedly connected with a movable blade. An output shaft of the motor is rotatably connected with a driving shaft, the top of the driving shaft is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a plurality of connecting columns, the outer walls of the connecting columns are rotatably connected with fan blades, and the outer wall of the rotating shaft is slidably connected with a movable pipe. In the deacidification reaction process, the gas inlet pipe is connected, gas enters the tank body through the gas inlet pipe, the feeding pipe is communicated, deacidification reactants are added into the feeding pipe, the reactants start to act after entering the annular pipe of the tank body, and the reactants are uniformly sprayed into the tank body through the spray head at the bottom of the annular pipe.

This invention discloses a cutting fixture and method applied to the removal of compressor moving blades in a gas turbine. The cutting fixture includes: a support module positioned on the compressor disc, the support module having a hollow groove suitable for the compressor moving blade to pass through, with a gap between the hollow groove and the compressor moving blade; a guide module disposed on the support module, suitable for moving axially along the compressor disc; and a cutting module disposed on the guide module, having a cutting end positioned directly above the gap during cutting, suitable for axial cutting along the compressor disc via the guide module. The support module of this invention positions the cutting module, eliminating the need for operators to hold an angle grinder. The guide module provides linear guidance for the cutting module, ensuring that the cutting groove cuts linearly along the compressor disc axis, preventing the cutting angle from wobbling due to unstable handling and avoiding accidental damage to the compressor disc.

This invention relates to the field of refrigerant flow control technology, and in particular to an electronic expansion valve throttling mechanism and an electronic expansion valve. The electronic expansion valve throttling mechanism includes a valve needle and a valve seat. The valve needle is mounted on the valve seat and has a moving path along the valve seat axis. The valve needle includes a first valve needle segment and a second valve needle segment from top to bottom, with the interface between the first and second valve needle segments forming a first cross-section. The valve seat includes a first valve seat segment and a second valve seat segment, with the interface between the first and second valve seat segments forming a second cross-section. The top of the first valve seat segment forms a first end face, and the bottom of the second valve seat segment forms a second end face. The first end face is provided with a first throttling outlet, and the second end face is provided with a second throttling outlet. A refrigerant inlet hole is provided on the side of the second valve seat segment. The present invention provides a single electronic expansion valve that can achieve throttling control of both large and small flow rates, and it has a simple structure, high modularity, and low cost.

The application provides a compressor air intake cooling system and compressed air energy storage system, and belongs to the technical field of compressed air energy storage. The compressor air intake cooling system comprises a compressor, a double-fluid nozzle integrated component, a gas supply path and a liquid supply path. The compressor has an air inlet and an air outlet. The double-fluid nozzle integrated component is installed on the air inlet, and the outlet of the double-fluid nozzle integrated component is communicated with the air inlet. One end of the gas supply path is connected with the gas channel of the double-fluid nozzle integrated component, and the other end is connected with the air outlet. One end of the liquid supply path is connected with the liquid channel of the double-fluid nozzle integrated component, and the other end is connected with a cooling liquid storage device. The double-fluid nozzle integrated component is used to provide a lower pressure without high temperature, so that a high gas-liquid flow rate difference can be realized, liquid fine atomization can be realized, the lower pressure can effectively reduce the nozzle wear rate, the maintainability can be improved, the installation requirements of the pipeline and equipment can be reduced, and the reliability and safety of the system can be improved.