39results about How to "Realize segment control" patented technology

The invention provides mechanical vibration treatment equipment for marine aquaculture sewage treatment, which relates to the technical field of sewage treatment, comprising: a U-shaped shell, the top of the U-shaped shell is connected, and a partition is fixedly arranged on the inner side of the top of the U-shaped shell. The position rotation between the plate and the U-shaped shell is provided with a transmission shaft, a driven shaft A and a driven shaft B, and the transmission shaft is located in the middle of the driven shaft A and the driven shaft B, and the transmission shaft according to various embodiments of the present invention , The driven shaft A and the driven shaft B provide an intermittent transmission effect, the transmission gear is a quarter gear, and the number of teeth on the tooth surface of the transmission gear is half of the driven gear A and driven gear B, which can constitute a mechanical The differentiated structure replaces the original electrical device control, and realizes automatic segmental control by using the accuracy reduction of mechanical transmission, and can avoid errors, which solves the problem that the control cost of existing sewage treatment equipment is relatively high and cannot be guaranteed Intermittent operation does not present the problem of time error.

The invention discloses a vehicle-mounted emergency rescue lighting device and a control method thereof. The lighting device includes a control system, a lifting mechanism, a rotating and pitching assembly and at least two lighting lamps. The lifting mechanism includes a lead screw and a sleeve threaded therewith Tube, the rotating and pitching assembly includes a plurality of pitching motors connected to the lighting lamps through the pitching shaft, and a rotating motor connected to the left and right rotating shafts, and the pitching shaft and the left and right rotating shafts are respectively provided with multi-level limit assemblies. The device has powerful functions and strong adaptability. It can not only meet the needs of the same direction of irradiation, but also meet the needs of different directions of irradiation. The lifting action is more stable and reliable, and it has a self-locking function. The large-angle rotation and positioning ensure the demand for large-angle rotating lighting in the emergency rescue process, which is convenient for emergency operations; the control method uses the limit sensor of the lifting mechanism to ensure the safe operation of the device and realizes automatic reset.

The invention provides a convective heat transfer flue-cured tobacco lamina re-curing method and device. The device comprises a rotary cylinder, a feeding device, a discharging device, a bidirectional airlock, a heat exchanger, a moisture discharging fan, a circulating fan and the like. A plurality of longitudinal heating plates are arranged on the inner wall of the rotary cylinder, a hollow shaft-shaped pipeline is arranged at the center of the cylinder and is divided into a front segment and a rear segment, and a plurality of high-temperature jet holes are formed in an outer pipe wall. After threshing and pneumatic separation processes, flue-cured tobacco lamina are fed into the rotary cylinder for processing, the moisture content of the flue-cured tobacco lamina is rapidly reduced, the moisture content of the processed flue-cured tobacco lamina is up to 12-13%, and the tobacco lamina directly undergoes a next packaging process. The raw material processing quality is improved, the device and the process are simplified, and energy consumption can be effectively reduced.

The invention provides a grid-connected photovoltaic power station reactive power-voltage control method based on power prediction. A photovoltaic AVC system is used to coordinate reactive power adjusting equipment in a grid-connected photovoltaic power station so that grid-connected point voltage control is completed. The method comprises the following steps of based on power prediction data, determining a reactive power loss of the grid-connected photovoltaic power station when grid-connected point voltage adjusting is ended; determining a reactive power adjustment total amount of the grid-connected photovoltaic power station; determining reactive power limits of a photovoltaic inverter and a static reactive power compensation device; carrying out switching control of a parallel compensation capacitor group; and carrying out control on the photovoltaic inverter and the static reactive power compensation device. In the invention, photovoltaic power station control sensitivity is accurately calculated and good reactive power-voltage control precision and a good response speed are possessed; and power prediction and photovoltaic power station AVC system are combined so as to realize segmentation control of a photovoltaic power station capacitor group and good balance between reactive power-voltage control and equipment protection.

The invention relates to the field of road tunnel construction and discloses a road tunnel construction ventilating structure and a ventilation control method thereof. The road tunnel construction ventilating structure comprises an intake roadway and a return roadway; the front end of each of the intake roadway and the return roadway is provided with a working face; a front transverse passage is communicated with the front of both the intake roadway and the return roadway; a fan facing the front end of a tunnel is disposed within the intake roadway; another fan opposite to the front end of the tunnel is disposed within the return roadway; at least one middle transverse passage all communicated with the front transverse passage is disposed between the front transverse passage and an opening of the tunnel; the middle transverse passages are connected between the intake roadway and the return roadway; each of the front transverse passage and the middle transverse passage is internally provided with one fan facing the return roadway. The road tunnel construction ventilating structure and the ventilation control method thereof have the advantages that power consumption can be greatly lowered at the premise of keeping the pollutant concentration in a designed range and intake of the transverse passages helps allow segmental control for the pollutant concentration of the return roadway.

The invention relates to a control method of a multi-split system outdoor fan and related equipment. The method comprises the steps of obtaining running information of a multi-split system; accordingto the running information, calculating system actual running high pressure value; according to the system actual running high pressure value, determining a corresponding system running saturation temperature value; according to the system running saturation temperature value, and a preset temperature control interval, determining the temperature control intervals where the system target running saturation temperature is located, wherein at least two temperature control intervals are arranged; and controlling the rotating speed of the outdoor fan so as to determine the temperature control intervals, where the system target running saturation temperature is located, of the system actual running saturation temperature. Through the method or related equipment, the outdoor fan can be preciselycontrolled, and the multi-split system efficacy can be improved.

The invention provides a multi-stage water-cooling device of an electronic device. The water-cooling device comprises a main pipeline, branch valves, branch pipelines and branch water cooler, wherein the main pipeline is connected with the branch pipelines through the branch valves, so as to realize that cooling fluid is conveyed to the branch pipelines for cooling; the branch valves are connected with the main pipeline and the branch pipelines and used for controlling the on / off of the main pipeline and the branch pipelines; the branch pipelines are connected with the branch valves and the branch cooler and used for conveying the heat of the water cooler into the main pipeline for cooling through the cooling fluid; the branch water coolers are connected with the branch pipelines and used for conducting the heat of the electronic devices into the cooling fluid. Due to the adoption of the water cooling device, segmentation control for the branch water cooling of the electronic device system and the water cooling system is realized, so as to bring convenience in maintaining and operating the pipelines.