58results about How to "Reduce daily operating costs" patented technology

The invention provides a rainwater resource utilization system of a composite type medium and a rainwater ecological purifying method of the system, and relates to the technical field of water body purification, aiming at solving the technical problem of ecological purification of rainwater. The system comprises a reservoir, a clean-water reservoir, a control well, a sand sediment trap and a medium composite type constructed wetland, wherein a plurality of water distributing pipes are paved on the medium composite type constructed wetland, and a plurality of water collecting pipes are paved at the bottom of the medium composite type constructed wetland; the reservoir and the clean-water reservoir jointly take the same vertical wall as a side pool wall, and the upper part of the vertical wall is provided with a clean water overflowing opening; the upper part of the wall of the reservoir is provided with an accumulated water overflowing opening, and the bottom of the reservoir is provided with a rainwater lifting pump; the sand sediment trap is arranged at a low-lying place which is good for collecting the rainwater, and is connected to the reservoir by a through hole; the rainwater lifting pump is connected with each water distributing pipe; the water inlet of the control well is connected to each water collecting pipe, and the water outlet of the control well is connected to the clean-water reservoir; and the bottom of the clean-water reservoir is provided with a clean water lifting pump. By using the system and the method provided by the invention, the utilization ratio of rainwater resources is high.

The invention relates to a plug hole and double-face solder mask screen printing machine and a screen printing method. The screen printing machine comprises a rack, a first screen printing machine body, a second screen printing machine body and a third screen printing machine body, wherein the first screen printing machine body is arranged on the rack and used for achieving plug hole printing of a printing stock, the second screen printing machine body is used for achieving solder mask printing of one side of the printing stock, and the third screen printing machine body is used for achieving solder mask printing of the other side of the printing stock; the first screen printing machine body is connected with the second screen printing machine body through a first panel turnover machine; the second screen printing machine body is connected with the third screen printing machine body through a second panel turnover machine; and the first screen printing machine body, the second screen printing machine body and the third screen printing machine body each comprise a camera shooting counterpoint mechanism with an automatic counterpoint function and for shooting the printing stock, a printing mechanism for carrying out printing operation and a transferring mechanism for achieving transferring of the printing stock between the camera shooting counterpoint mechanism and the printing mechanism. The plug hole and double-face solder mask screen printing machine is high in producing efficiency, low in power consumption and low in total cost, and the problem that the color difference of product appearance is large can be avoided.

The invention relates to a modular mobile solar power generation device. The modular mobile solar power generation device takes a container box adapted for vehicle transportation as a frame. Both sidebox plates and a top upper support frame are of a split structure, and a photovoltaic plate is installed, and can be turned to an angle suitable for collecting sunlight. The bottom frame of the box is provided with multi-layered built-in photovoltaic modules, and the multi-layered built-in photovoltaic modules can be sequentially extended to the outside and turned to an angle suitable for solar illumination to absorb solar energy. The interior of the box is provided with a photovoltaic control part which is used for controlling the operation of each photovoltaic plate. Meanwhile, an energy storage battery pack is arranged in the box, and the device can store energy and electricity for external power supply. The device can increase the absorption of solar energy, increase the output of electric energy, realize the mobilization of the device, and meet the power demands in remote areas, various temporary camps, temporary office, production and living places in China, and also solve the practical problem of shortage of electricity and energy in energy-poor, power-underdeveloped countries or regions.

The invention relates to a method, device and system for obtaining a subway taking route. The method comprises the steps of obtaining a starting site and an inputted destination site, and obtaining optional routes according to the starting site, the destination site and a prestored subway map; obtaining the boarding time and sites required to be travelled of each optional route, and obtaining thepredicted traveling duration of the sites required to be travelled of each optional route according to the boarding time; respectively obtaining the arrival time of each optional route when arriving at the destination site according to the boarding time, a prestored train timetable of each optional route and the corresponding predicted traveling duration; and calculating the total taking time corresponding to each optional route according to the boarding time and the arrival time, and selecting the optional route corresponding to the shortest total taking time to obtain the optimal taking route. Therefore, the optional route using the least time is enabled to serve as the optimal taking route, and the optimal taking route can be displayed or broadcast to a passenger in voice, thereby beingconvenient for the passenger to take the subway according to the optimal taking route, reducing the travel time, and improving the travel efficiency.

The invention discloses an integrated membrane bioreactor. The integrated membrane bioreactor comprises an anaerobic zone provided with a lining anticorrosive coating layer, an anoxic zone provided with a lining anticorrosive coating layer, an aerobic zone provided with a lining anticorrosive coating layer, a filtering zone provided with a lining anticorrosive coating layer, a MBR subassembly arranged in the filtering zone, a reflux pump, a filter pump, and an air blower. The integrated membrane bioreactor possesses following advantages: (1) treatment efficiency is high, and discharged water can be recycled directly; (2) system operation is stable, flow is simple, equipment is less, and occupied land area is small; (3) sludge age is old, and excess sludge production is low; and (4) operation management is convenient, and automatic control is convenient to realize. According to the integrated membrane bioreactor, activated sludge can be completed intercepted in the integrated membrane bioreactor; hydraulic retention time (HRT) and sludge retention time (SRT) are completed separated in the integrated membrane bioreactor, so that flexible and stable controlling can be realized; at the same time, automatic control is convenient to realize, and automation level of wastewater processing is increased.

The invention relates to a solar direct-current power generation control method for a communication base station. According to a technical scheme, a lightning protection system, a control system, and a detection system are arranged. The lightning protection system is connected in series to an input terminal of a photovoltaic power supply. The control system includes a power supply system control switch and a communication power supply current backflow prevention system. The detection system includes a photovoltaic power supply detection and control system consisting of a DC / DC control power supply, a communication voltage acquisition circuit, a photovoltaic voltage acquisition circuit, and a voltage comparison circuit. A collected communication power supply voltage, a collected photovoltaic voltage, a highest voltage threshold value of the communication power supply are compared and then a control signal is outputted to control turning on or off of a direct-current power supply relay, thereby realizing controlling. The method has the following beneficial effects: a solar direct-current grid-connected power supply problem of a communication base station is solved and thus direct-current grid connection of the solar power generation is realized; the commercial power consumption load of the base station is reduced; objectives of new energy utilization, energy conservation, and emission reduction are achieved; and the daily operation cost of the base station can be saved.

The invention relates to the technical field of sewage treatment, in particular to an energy-saving and environment-friendly sewage treatment system. The sewage treatment system is composed of a sewage circulation system and a sewage circulation system. The sewage circulation system also includes a preliminary filtering device. The preliminary filtering device is rotatably connected with a Filter ball, the filter ball has an inlet corresponding to the spherical surface of the sewage inlet pipe and an outlet corresponding to the spherical surface of the sewage outlet pipe, and a regulating pipe is arranged on the pipeline of the sewage outlet pipe, and the regulating pipe controls the flow direction of the sewage to discharge or flush the inner wall of the filter ball. The invention solves the problem of shortening the service life of the filter membrane body by directly performing membrane filtration in an environment with high turbidity of sewage. The proposed sewage treatment system can remove the larger particulate matter after primary filtration of sewage. The impurity is removed, the burden of subsequent membrane filtration is reduced, the dirt and the dirty liquid are clearly distinguished, and the dirty liquid can also be used for the second time to wash the filter plate, which is energy-saving and environmentally friendly.