1383results about How to "No power consumption" patented technology

An implantable polymer-based pressure sensor featuring an electrical LC-tank resonant circuit for passive wireless sensing without power consumption on the implanted site. The sensor is microfabricated with parylene to create a flexible coil substrate that can be folded for smaller physical form factor during implantation, and can be stretched back without damage for enhanced inductive sensor-reader coil coupling. Data received from the sensor can be enhanced to provide improved pressure measurements at increased distances.

The invention provides an integrated internal circulation type denitrification and decarburization bio-membrane reactor and an operating method thereof. The main body of the reactor consists of an anoxic zone on the lower part, an aerobic zone on the upper part and a settling zone on the periphery of the aerobic zone; a composite filler is filled in the anoxic zone, and a water inlet pipe is communicated with the bottom of the anoxic zone; the aerobic zone is partitioned into a filler zone for adding a carrier on the upper part and a mud-water mixing zone on the lower part by adopting an orifice plate, the anoxic zone and the aerobic zone are partitioned through an impermeable partition plate, and a plurality of aeration pipes are arranged at the bottom of the aerobic zone and provided with air inlet pores; and the settling zone consists of three parts, namely a clean water zone, a contact settling zone and a sludge returning zone which are sequentially arranged from top to bottom, wherein the bottom of the sludge returning zone is provided with a sludge returning seam and communicated with the bottom of the aerobic zone. The reactor realizes zero power consumption in sludge returning, and is compact in structure; and a back flushing system is not required in the contact settling zone, and additional agents and carbon sources are not required, so that the reactor is low in running cost.

The invention provides a compensating method of the switching frequency of a amplifier which comprises the following steps: two output end polarities is compared in the state in which the amplifier has no signal outputting; the inputting end current of the amplifier is adjusted according to the electrode; repeated circle is carried out until achieving the requirement of stopping the cycle. The invention also provides a compensating device of the DC offset voltage of the amplifier which comprises a comparator, a register, a decoding module and a current compensation module. The invention has the advantages of simple structure, low cost, small power-consumption. Meanwhile, the invention is used both for a signal amplifier and an amplifier system, which can limit the imbalance voltage to be in small scope.

A method for identifying digital telemetering image of flow rate charging meter includes preprocessing image, positioning characters, detailing image, picking up characteristics and identifying characters. The digital telemetering-copying system of flow rate charging meter is also disclosed.

The invention discloses an integrated flue gas treatment device and method. The device comprises flue gas treatment equipment, ozone supply equipment, hydrogen peroxide supply equipment, evaporation and concentration equipment, cyclic sedimentation equipment and the like, wherein the flue gas treatment equipment comprises an ozone spray oxidation reaction layer, a hydrogen peroxide spray oxidation reaction layer, an absorber spray area, a slurry circulation area and a dust and mist removal area; both the ozone spray oxidation reaction layer and the hydrogen peroxide spray oxidation reaction layer are arranged in the absorber spray area; the dust and mist removal area is positioned above the absorber spray area; both the evaporation and concentration equipment and the cyclic sedimentation equipment are arranged in the flue gas treatment equipment. The device and the method disclosed by the invention are suitable for comprehensive treatment of flue gas containing SO2, NOX, Hg and dust and resource utilization of liquid waste in coal fired boilers, iron and steel sintering machines, pellets, industry kiln stoves and the like.

The invention relates to a boosting method for synchronization without insulating photovoltaic grid-connected inverters. The inverter operates independently before the integration into the grid. The AC switch is kept disconnected while the DC voltage sensor detects the value of voltage amplitude of the DC bus input by the inverter. The AC voltage sensor detects the amplitude, frequency and phase of the grid voltage. When the voltage amplitude input into the DC bus by the inverter exceeds the peak voltage of the grid, the inverter manages the circuit to calculate, according to the voltage amplitude of the DC bus and the amplitude, frequency and phase of the grid voltage, and get the inverted modulating wave that is synchronized with the phase and frequency of the grid voltage. When the DC inverter voltage and the grid voltage become identical in frequency, phase and amplitude, and the voltage amplitude of the bus is permissible for the synchronization, the inverter controls the circuit and the actuation of the AC switch and starts the operation of the synchronization. The invention is simple in structure and can save power as well as enhance the system stability.

The invention relates to a horizontal shaft magnetic suspension wind driven generator, comprising a stationery part and a rotating part; the stationery part comprises a radial magnetic bearing stator part, an axial magnetic bearing stator part, a generator stator part, a front protective bearing, a rear protective bearing, a stator shell and a blower tower; the rotating part comprises a blade, a hub, a rotating shaft, a radial magnetic bearing rotor part, an axial magnetic bearing rotor part and a generator rotor part; an axial magnetic bearing is composed of a permanent magnet without a control system, a radial magnetic bearing is a permanent magnet bias magnetic bearing, the permanent magnet provides bias flux density, and control force is adjusted by current; the blower rotor realizes five-freedom-degree stable suspension, can completely eliminate the mechanical friction of the rotating part and the stationery part, reduce starting resisting moment and starting wind velocity of the blower and improve the wind energy utilization rate. All components of the invention have rational and compact layout, the maintenance of the blower can be reduced and the service life is prolonged.

The invention provides a natural fiber crystal variation modified liquid medium filling and recovery system based on paralleled multiple buses and multiple modified kettles. The natural fiber crystal variation modified liquid medium filling and recovery system based on the paralleled multiple buses and multiple modified kettles comprises a liquid medium low-pressure mass flow liquid-filling bus, a liquid medium high-pressure small flow liquid-filling bus, a liquid medium low-pressure mass flow liquid-return bus, a liquid medium low-pressure small flow liquid-filling bus, a gas phase balance bus, and n modified kettles which are in parallel connection on the buses, and n >=1. The invention further provides a natural fiber crystal variation modified liquid medium filling and recovery method based on the paralleled multiple buses and multiple modified kettles. The liquid-filling process comprises mass flow balance liquid filling and small flow pressure boosting liquid filling, and the liquid return process comprises mass flow pressure relief liquid return, mass flow balance liquid return, small flow balance liquid return, and cage shift liquid exhaustion. The natural fiber crystal variation modified liquid medium filling and recovery system and the method based on paralleled multiple buses and multiple modified kettles are good in modified effect, small in system energy consumption, and high in production efficiency.

The invention provides a single-chamber microbial fuel cell, which takes a gas diffusion electrode as the negative electrode. The invention comprises a container, a positive electrode and a negative electrode; wherein, the positive electrode adopts a foamed metal electrode, the negative electrode adopts a gas diffusion electrode containing metallic catalyst, such as Ag, the container adopts a cylindric glass container, a water inlet opening is arranged at the lower end of the container, a water outlet opening is arranged at the upper end, a sealing cover is arranged at the upper part of the container, a sampling opening is arranged at the middle part of the sealing cover, the positive electrode is positioned at the inner side of the container, the negative electrode is positioned at the outer side of the container, the positive electrode and the negative electrode are arranged along the circumference of the container, copper conductors are connected between the both electrodes, and the both electrodes are connected with a load to form a closed loop. The gas diffusion electrode adopted by the invention exposes in the air, the oxygen gas in the air can be directly utilized as electron acceptors, an extra aerating device is not required; therefore the running cost is reduced. Organism, such as dextrose and discharge water can be used as the fuel of the cell, chemical energy can be effectively converted into electric energy; simultaneously, better discharge water processing effect can be achieved.

The invention relates to a flexion type acceleration switch. In the switch, a tilted support beam, a mass block and a height adjustable contact component in a group are arranged in an insulation encapsulated shell of the switch, wherein the tilted support beam is of a double layer structure; two ends of the support beam are fixed at two sides of the shell; the double layer tilted support beam supports the mass block in a certain angle alpha to ensure that the mass block is balanced and suspended in an inner cavity of the insulation encapsulated shell; a contact is arranged on the bottom of the mass block; the height adjustable contact is arranged on the insulation encapsulated shell right under the mass block, and remains a certain distance from the mass block; when the double-layered tilted support beam is bent under the action of exterior threshold inertia force, the mass block moves along the exterior acceleration velocity to ensure that elastic contact is formed between the contact on the mass block and the height adjustable contact, and extrudes the contact to form stable contact by means of flexion elastic force. The acceleration switch is characterized by simple structure, adjustable threshold value and strong interference resistance.

The invention discloses an automatic profile observing apparatus driven by ocean wave energy. The automatic profile observing apparatus comprises a mooring floating ball, a steel cable, a mooring weight, an instrument rack, an upper rack limiting device and a lower rack limiting device; the instrument rack is penetrated by a steel cable and positioned between the two rack limiting devices, the instrument rack has net buoyance, a single-direction moving module is fixedly installed on a middle-upper position inside the instrument rack, in the upward and downward moving processes of waves, the instrument rack has an underwater net displacement, the waves continuously vibrate, the instrument rack moves towards deep water along the steel cable and finally collides with the lower rack limiting device to float upwards. After the instrument rack floats upwards to the upper rack limiting device and is assembled, the instrument rack can move to the deep water under the effect of the waves. By virtue of full mechanical design, the automatic profile observing apparatus has no electric power consumption; compared with the existing commercial automatic profile platform, the size and the weight are greatly reduced; a set of sensors can be carried to perform the full-profile observation and to acquire real-time continuous high-resolution data, so that the application cost of the instrument isreduced, and the data acquisition efficiency is increased.

The invention relates to a battery cooling method and a battery cooling device, in particular to liquid-nitrogen cooling method and device for an automotive power battery pack. The liquid-nitrogen cooling method for the automotive power battery pack includes directly releasing liquid nitrogen to the surface of the power battery pack and a casing of each battery cell to convert the liquid nitrogen into gas nitrogen, and cooling the surface of the power battery pack and the casing of each battery cell by absorbing a substantial amount of heat in process of converting the liquid nitrogen from liquid into gas. The liquid-nitrogen cooling device for the automotive power battery pack comprises a liquid nitrogen tank (1), a cooling container (8), a connecting pipeline (19), a cooling passage (20), a nitrogen exhaust port (9) and the like. The liquid nitrogen tank (1) is communicated with the cooling passage (20) arranged in the cooling container (8) through the connecting pipeline (19). The liquid-nitrogen cooling method and device for the automotive power battery pack are good in cooling effect, free of consumption of electric energy of the power battery pack, environment-friendly and energy-saving. The cooling method is simple and easy to implement. The cooling device is small in size, the structure is simple and stable, noise and vibration can be avoided, cooling stability is good, and safety is high.

The invention discloses a distributed domestic sewage treatment method. The method combines process units of anaerobic, jet oxygenation, biological oxidation, artificial wetland and the like together to perform anaerobic, aerobic and wetland ecological three-stage treatment on the domestic sewage so as to effectively reduce CODcr and BOD5 of the domestic sewage; and dephosphorization and denitrification are performed, and the effluent is stable and reaches the standards before emitting. A jet oxygenation pulse water distributor is adopted in the jet oxygenation, and the jet oxygenation pulse water distributor oxygenates the anaerobic effluent and provides pre-oxygenation treatment for a subsequent aerobic process; the biological oxidation is performed in a trickling filtration tower which is designed with 2 to 3 layers and provided with vent holes, a ceramic filler is placed in the trickling filtration tower, and the trickling filtration tower distributes water by adopting time control pulse so that the re-oxygenation effect of the trickling filtration tower can be improved and no power is consumed; and the artificial wetland is designed in an undercurrent form, proper fillers such as coal cinder, plaster, gravels and the like are placed in the artificial wetland, and pollutants can be further degraded and removed from the wetland environment. The method is suitable for standard-reaching treatment of rural or urban distributed domestic sewage.

The invention relates to a Halbach array parallel rotor composite excitation brushless synchronous motor, which comprises a rotor and a stator for accommodating the rotor, wherein the stator comprises a magnetic groove sleeve, an annular exciting winding and the like; the magnetic groove sleeve is fixed on a motor end cover through bolts and is not contacted with the rotor; and the annular exciting winding is fixed at the groove of the magnetic groove sleeve. The rotor consists of a rotating shaft and a Halbach rotor and an electric excitation rotor which are arranged on the rotating shaft in parallel, and the Halbach rotor comprises a non-magnetic rotor supported by the rotating shaft and a Halbach array permanent magnet arranged on the surface of the non-magnetic rotor; the electric excitation rotor comprises a claw pole structure connected with the rotating shaft; and the Halbach rotor is separated from the electric excitation rotor by a separating magnetic ring formed by air gaps. The brushless synchronous motor can reduce the eddy current loss of the rotor, enlarge the adjustable range of a magnetic field and improve the power density of the motor, and has the advantages of high reliability and good energy-saving effect.

A hydrogen energy supply chain comprises a liquefaction factory, a low-temperature storage tank, a pump, a vaporizer, gas cylinders and hydrogen adding mechanisms. The technological process of the hydrogen energy supply chain has the technical characteristics that hydrogen gas produced through hydrogen production by a hydrogen resource place is liquefied into liquid hydrogen by the liquefaction hydrogen factory, then the liquid hydrogen is conveyed to a hydrogen user market place through a low-temperature storage tank transport means, is pressurized through the pump and is vaporized into high-pressure gaseous hydrogen through the vaporizer, the gaseous hydrogen is loaded to the gas cylinders, and then the gas storage cylinders of hydrogen fuel cells are filled completely to the rated pressure through hydrogen adding machines. According to the hydrogen energy supply chain, hydrogen liquefaction, storage, transport and other proven technologies in the aerospace field of China are used and extended to the downstream, pressurization of the pump and vaporization of the vaporizer are added for obtaining the high-pressure hydrogen gas, and the complete hydrogen energy supply chain is formed with combination of personal authorized patent technology of a gas station.

The invention discloses a zero-energy consumption building natural ventilation system which comprises a transparent glass cover plate, a heat collecting plate mounted on a south-ward outer wall of the building, and an air way formed between the transparent glass cover plate and the heat collecting plate, as well as an air induction type rotary discharge air cap and an air induction type rotary air intake cap both arranged at the top part of the air way. The natural ventilation system fully utilizes solar energy and wind energy to enhance building natural ventilation capacity, overcomes the deficiency caused by utilizing a single energy source, ensures system stable operation, effectively reinforces indoor ventilation effect to improve the air quality, avoids electrical energy consumption to achieve favorable energy saving effect, and is simple in structure and convenient to install and maintain.

The invention provides a screen printing type casting diamond dry grinding sheet and a manufacturing process thereof. The manufacturing process comprises placing the following materials of, by volume, 30 to 50% of binding agent, 2 to 25% of diamond grinding materials, 1 to 10% of endothermic agent, 0 to 5% of foaming agent, 5 to 12% of cooling agent and 10 to 30% of grinding materials into a mixer to be mixed for 1 to 4 hours; brushing mixed paste on a textile base layer through a screen printing die; lifting up the die to be naturally solidified for 3 to 36 hours at the room temperature or placing the die into an oven to be solidified for 1 to 42 hours under the condition of 60 to 300 DEG C; adhering a layer of nylon buckle wool surface or nylon buckle hook surface onto the bottom surface of the textile base layer through a polymer adhesive; trimming the edge to obtain a dry grinding sheet finished product. According to the screen printing type casting diamond dry grinding sheet and the manufacturing process thereof, devices are simple, the process is advanced, the heat resistance of the dry grinding is improved, most of the heat generated in the grinding process can be absorbed, and the grinding temperature is directly reduced.