The invention discloses a self-adaptive electric valve control system in the field of intelligent automation equipment. The self-adaptive electric valve control system comprises a cooling liquid conveying chamber, a reaction container, a cooling chamber, a cooling liquid collecting chamber, a storage battery, a first adjustable low-temperature module, a first temperature difference power generation module, a valve opening and closing motor and an electric valve. The cooling liquid conveying chamber and the cooling chamber are connected through a first liquid conveying pipeline. The cooling chamber is connected with the cooling liquid collecting chamber through a second liquid conveying pipeline; the output end of a first temperature difference power generation module is electrically connected with a valve opening and closing motor, the valve opening and closing motor is electrically connected with the electric valve and controls opening and closing of the electric valve, and the outputend of the storage battery is electrically connected with a first adjustable low-temperature module and supplies power to the first adjustable low-temperature module. According to the self-adaptive electric valve control system, waste heat of the reaction container is used for supplying energy, and the energy utilization rate is high; and meanwhile, self-adaptive automatic control is realized.

Self-adaptive electric valve control system

The invention relates to an intumescent flame-retardant composition and preparation and application thereof. The intumescent flame-retardant composition is prepared from the following raw materials inparts by mass: 1-5 parts of an acid source component, 1-13 parts of a carbon source component and 1-16 parts of a gas source component, wherein the acid source component comprises melamine phosphateand at least one of ammonium phosphate, ammonium sulfate, ammonium polyphosphate, tricresyl phosphate and alkyl phosphate. According to the invention, melamine phosphate is matched with at least one of ammonium phosphate, ammonium sulfate, ammonium polyphosphate, tricresyl phosphate and alkyl phosphate to form a compound acid source, and the compound acid source, the carbon source component and the gas source component form the flame-retardant formula, and the ultra-high molecular weight polyethylene material is modified with the flame-retardant formula, such that the flame-retardant effect issignificant, and the high limit oxygen index is provided.

Intumescent flame-retardant composition and preparation and application thereof

The invention discloses a flywheel energy storage reset servo direct drive type angular travel rapid cut-off executing mechanism which comprises a power mechanism, a transmission system, an angular travel output assembly and an energy storage reset mechanism. The power mechanism drives the angular travel output assembly to move through the transmission system to achieve the travel output; the energy storage reset mechanism is used for turning off the actuating mechanism when the power mechanism is powered off, and the energy storage reset mechanism is a flywheel energy storage reset mechanism.According to the flywheel energy storage reset servo direct drive type angular travel quick cut-off executing mechanism, the thought of alternating current servo direct drive and flywheel energy storage reset is applied to the design process of a common electric actuator, so that the structure of the electric actuator is simplified, the using process of the electric actuator is optimized, and theworking efficiency of the electric actuator is improved.

Flywheel energy storage reset servo direct-drive type angular travel quick cut-off executing mechanism

The invention discloses a valve actuator monitoring system. The system includes an actuator assembly, and the actuator assembly comprises a handle, a rotating shaft, a connecting frame, a noise reduction cavity and a valve body. The upper part of the noise reduction cavity is connected with the connecting frame, the lower part of the noise reduction cavity is communicated with the valve body, anda movable base is mounted above the connecting frame; a valve blade is arranged in the valve body, the vertically arranged rotating shaft is mounted above the valve blade, and a handle is installed atthe upper end of the rotating shaft and is located above the movable base. The valve actuator monitoring system further comprises a vibration detection unit, and the vibration detection unit is installed on the movable base to detect the vibration frequency of the valve body. According to the present invention, the technical problem that in the prior art, the vibration, temperature and pressure of the valve actuator cannot be monitored, is solved.

Valve actuator monitoring system

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Papers

Self-adaptive electric valve control system

Intumescent flame-retardant composition and preparation and application thereof

Flywheel energy storage reset servo direct-drive type angular travel quick cut-off executing mechanism

Valve actuator monitoring system