39results about How to "Reduced operational stability" patented technology

The invention provides a container storage system, a warehousing system, a robot control method and a robot. The container storage system comprises an inventory area, a control server, a robot and a plurality of workstations, wherein the control server and the robot are in wireless communication; an inventory bracket is placed in the inventory area; the inventory bracket comprises at least one layer of laminated plate; the inventory bracket is divided into at least two layers by the at least one layer of laminated plate; and at least two storage containers are placed on the inventory bracket along a longitudinal depth direction of the laminated plate. According to the container storage system, the storage density of the storage container in the inventory area is improved, energy consumption for the robot to take out the storage container is lowered, after the robot finishes single-time energy supplementation, a total workload which can be finished by the robot is improved, and sortingcost is lowered.

An FM receiver which can be used by being switched between stereophonic and monophonic, and comprises detecting means for detecting a received signal, two routes over which a detected signal is transmitted to an output buffer, and a switching means for selecting either one of the two routes. The two routes consists of a route going through a stereophonic demodulating unit and a route bypassing the stereophonic demodulating unit; and the switching means selects either one of the two routes based on a control signal indicating the selection of either one of stereophonic and monophonic, and, when the route bypassing the stereophonic demodulating unit is selected, turns off power supply to the stereophonic demodulating unit based on the above control signal.

The invention discloses a soot wet desulfurization craft. The water absorbent mixed liquid bursts below from cascade device on desulfurization tower, the soot goes into desulfurization tower and contacts with water absorbent conversely in multiplayer meshwork. The sulfur dioxide diverts to liquid. The air goes to the super stratum of water absorbent in the circular pool (3) to make absorbed sulfur dioxide form gesso. The water absorbent can separate the bigger gesso and assure the concentration of water absorbent and absorb ability to sulfur dioxide. The present invention has high efficiency of desulfurization, increases running stability of the system and decreases the engineer cost. The equipment cannot jam easily and fit for industry.

The invention discloses a high-recovery-rate saline wastewater membrane combination and separation process and an application thereof, and belongs to the technical field of water treatment and resource recycling. The process and the application comprise the following steps: a fiber filter is used to treat saline wastewater; then the saline wastewater is treated by an ultrafiltration membrane, and discharged water enters an ultrafiltration water tank; water in the ultrafiltration water tank is treated by a reverse osmosis membrance to obtain reverse osmosis clear water and reverse osmosis thick water, clear water is recycled, and thick water is treated by a nanofiltration membrane for further concentration; after the thick water is nano-filtered, nanofiltration clear water and nanofiltration thick water are obtained; the nanofiltration clear water enters the ultrafiltration water tank, and the nanofiltration thick water is collected and then applied to building materials or the coal washing industry. The separation process can also a physical washing and chemical cleaning unit and also selects a secondary reverse osmosis membrane assembly after primary reverse osmosis water production in order to adapt to different water quality requirements of discharged treatment water. Secondary reverse osmosis inflow water is primary reverse osmosis produced water, and secondary reverse osmosis thick water returns to the ultrafiltration water tank. The salt rejection rate is increased, and meanwhile the higher overall recovery is ensured.

The invention relates to preparation of electrodes of fuel cells and aims at providing an air cathode without a metal catalyst and a preparation method thereof. The air cathode comprises a carbon cloth or a stainless steel mesh as a base material. Both sides of the base material are respectively coated by diffusion layers and catalyst layers, wherein the diffusion layers are contacted with the air and the catalyst layers are contacted with electrolyte. The cathode of the invention is composed of multiple diffusion layers and catalyst layers, reduces loss of water due to evaporation and improves stability of the electrodes. One side of the cathode directly faces the air and oxygen is directly diffused to the catalytic surface of the cathode without additional air supply devices and drivingforce, thus greatly lowering the operation cost of the cell and improving the stability. The catalytic materials of the cathodes are active carbons featuring wide sources and low prices, without any metal catalyst, thus greatly reducing the constructive cost. The air electrode has the characteristics of simple structure, low cost and easy expansion and can be used for producing microbial fuel cells with high properties and low costs and simultaneously purify waste water.

The invention discloses an integrally formed anode composite covering layer structure of an aluminum electrolytic cell. On the basis that the heat insulation and anti-oxidation functions of existing covering mixtures of aluminum oxide and electrolytes are ensured, an integrally formed aluminum electrolytic anode composite covering layer which can be repeatedly used for multiple times is provided for replacing the mode of bulk covering mixture layers of electrolytes and aluminum oxide, adopted by traditional aluminum electrolysis. The upper surfaces of anodes are covered with anode anti-oxidation covering layer bodies (3), and air is isolated, so that the upper surfaces of the carbon anodes are prevented from being oxidized; heat insulating composite covering layer bodies (1) on the anodes are arranged on the anti-oxidation covering layer bodies (3) to form a covering layer set which covers all the anodes of the electrolytic cell, and the functions of heat insulation and gas collection are achieved; and heat insulating composite covering layer bodies (2) on the periphery of the electrolytic cell are arranged between the outer edges of the anodes and the inner edges of side blocks of the cell and arranged on the inner furnace wall of a cell hearth, and cover all the peripheries of the long sides and the ends.

The present invention relates to an electromagnetic shielding composite material and a preparation method thereof. The electromagnetic shielding composite material includes a wave absorbing paper layer, which is the core layer of the electromagnetic shielding composite material; a conductive layer, which is connected to the surface of the wave absorbing paper layer; and a resin layer, which is the core layer of the electromagnetic shielding composite material. The surface layer is connected to the surface of the conductive layer; the absorbing paper layer and the conductive layer are connected through the adhesive layer to form a resin layer / conductive layer / adhesive layer / absorber layer / adhesive layer / conductive layer Layer / resin layer composite structure; the absorbing paper layer includes several layers of absorbing paper; when the number of layers of absorbing paper≧2, the absorbing papers are connected together by an adhesive layer. The electromagnetic shielding composite material adopts a multi-layer composite structure and introduces a double shielding mechanism of reflection and absorption. It can not only shield electromagnetically, but also has a certain bearing function. It can be used for high electromagnetic radiation intensity, wide radiation frequency band, and strict requirements for secondary interference. field, and thus more practical.

The present application relates to a trigger pulse detection method, device, detector and test tooling of an excitation regulator. The excitation regulator trigger pulse detection method includes: obtaining the voltage wave of the synchronization voltage input to the excitation regulator under test, and the pulse wave of the trigger pulse output from the excitation regulator under test to the SCR corresponding to the synchronization voltage; reading the voltage wave The zero-crossing time information of the pulse wave and the zero-crossing time information of the pulse wave; according to the zero-crossing time information of the voltage wave and the zero-crossing time information of the pulse wave, the phase difference of the pulse wave relative to the corresponding voltage wave is obtained, and the relative phase difference of the pulse wave is obtained ; Wherein, the thyristor corresponding to the pulse wave corresponds to the synchronous voltage corresponding to the corresponding voltage wave; compare the relative phase difference of the pulse wave with the preset reference range, and generate the detection result information corresponding to the trigger pulse. Adoption of the application can prevent the user from using the tested excitation regulator with abnormal function to reduce the running stability of the generator.

The invention discloses a turbine control valve quick-closing system control method based on fault critical mute time. On the basis of original triggering logic for a turbine control valve quick-closing function, judgment of power system fault types and selection of delay time are added. Turbine control valve quick-closing function triggering conditions under different faults are determined through analogue simulation of transient faults of a power system, and thus the optimum control valve quick-closing action delay time of different power generators under the active power (a per-unit value)is determined through analogue simulation of three-phase short troubles of the power system and according to fault critical mute time and power plant earth fault current disappearing time. By adoptionof the control method, fluctuation of transient abnormal power signals can be shielded, adverse effects on safe operation of a unit caused by delay during unit sudden load change can also be avoided,and safety and stability of the power system are effectively guaranteed.

The invention relates to a pump turbine which comprises a volute casing, stationary guide vanes, movable guide vanes and a rotating wheel, wherein the rotating wheel is positioned in the middle in the volute casing; the stationary guide vanes and movable guide vanes are distributed in the volute casing; the movable guide vanes are distributed on the periphery of the rotating wheel; and the stationary guide vanes are distributed on the periphery of the movable guide vanes. The pump turbine is characterized in that a small guide blade is rotatably arranged between every two stationary guide vanes. When the pump turbine operates, the stationary guide vanes are kept stationary, the opening and closing of the small guide blades are utilized to control the flow entering the set, and the movable guide vanes can be adjusted to a reasonable angle so as to provide a reasonable attack angle for the waterflow entering the rotating wheel, thereby ensuring the stable flow in the rotating wheel and enhancing the efficiency and stability of the set.