109results about How to "Guaranteed operating life" patented technology

The invention discloses a method for realizing zero emission of dyeing wastewater with high salinity in printing and dyeing enterprises. The method comprises the following steps that: the wastewater enters a regulating reservoir first for homogenizing, and then enters a reaction tank, ferrous sulfate is added into the reaction tank to regulate the pH value and perform a coagulation reaction, effluent enters a sedimentation basin for precipitating after the reaction, supernate of the sedimentation basin is treated by an electrochemical reactor, enters a secondary sedimentation basin so as to remove scummings and dregs and enters an aeration tank for aerating, and the supernate is filtered by a manganese sand filter for deferrization after the aerating; the filtered effluent is treated by using an ultrafiltration membrane, concentrated water of the ultrafiltration membrane returns to the regulating reservoir, and fresh water enters a nanofilter membrane for treating; the fresh water outputted by the nanofilter membrane enters a reverse osmosis membrane, the outputted concentrated water returns to the regulating reservoir or is evaporated directly; and concentrated water of the reverse osmosis membrane enters an electrodialyzer, electrodialytic fresh water is refluxed to be used as inflow of the reverse osmosis membrane, and electrodialytic concentrated water enters an evaporator for evaporating. Vapor generated by evaporating can be used for printing and dyeing production, residues generated by the evaporating are used as solid wastes, and water pollutants are not discharged in the whole process.

The embodiment of the invention discloses a method and system for active power control of wind turbines. The method comprises the steps of classifying the wind turbines according to the capability of the wind turbines participating in wind power plant automatic gain control (AGG) boost/reduction power control, and dividing the wind turbines into boost power wind turbines, reduction power wind turbines and power-nonadjustable wind turbines; setting a boost power priority sequence of the boost power wind turbines according to boost power stability, and setting a boost power priority sequence and distribution strategy; setting a reduction power priority sequence of the reduction power wind turbines according to reduction power stability, and setting a reduction power priority sequence and distribution strategy; and controlling the wind turbines to execute boost power or reduction power operation according to the wind power plant AGG boost/reduction power control requirements. According to the wind turbine active power control scheme, factors affecting the service lives of the wind turbines can be fully considered, grouping is performed according to the characteristics of the factors, and corresponding control sequences and strategies are selected to perform active power regulation on the wind turbines, and thus the aging of the wind turbines is slowed down.

The invention provides a dipping insulating paint, and relates to an insulating paint for a motor. The dipping insulating paint is prepared from the following raw materials, by weight, 30-60 parts of unsaturated polyester resins, 10-30 parts of acrylic ester prepolymers, 1-2 parts of curing agents, 1-5 parts of rheological additives, 20-40 parts of diluters without volatilization activity, and 0.2-1 part of auxiliary agents. The invention also provides a preparation method for the dipping insulating paint. The dipping insulating paint is environmentally friendly, nontoxic and low baking loss amount, and therefore raises the painting amount of a motor.

The embodiment of the invention discloses a same-orbit specific phase distribution constellation layout and orbit adjustment method and device based on Hohmann orbital transfer, and a computer storagemedium. The method comprises the following steps: establishing an orbit injection motion model of an earth remote sensing satellite; analyzing an orbit attenuation factor of the earth remote sensingsatellite based on a preset perturbation factor; aiming at the earth remote sensing satellite constellation with specific phase distribution on the same orbit, designing a height adjustment strategy from an injection orbit to a calibration orbit and a phase initialization layout strategy of the constellation according to the orbit injection motion model; and determining the fuel quantity requiredby the earth remote sensing satellite under the designed service life at least according to one or more of the height adjustment strategy and/or the phase initialization layout strategy, phase maintenance and height maintenance for the orbit attenuation factor.

The invention relates to an afterheat boiler system, in particular to a double-working substance heat source sintering cogeneration-type boiler system. The system comprises a vertical cooling machine, a sintering machine, a cogeneration-type boiler, a steam condensing and compensating turbine and a generator, wherein hot air produced by the vertical cooling machine is introduced into the upper part of the cogeneration-type boiler through a pipeline; warm flue gas in the sintering machine is introduced into a sleeve-type medium-pressure evaporator on the upper-middle part of the cogeneration-type boiler through the pipeline; low-temperature flue gas of the sintering machine is introduced into a sleeve-type low-pressure evaporator on the lower-middle part of the cogeneration-type boiler through the pipeline; medium-pressure over-heat steam produced by the cogeneration-type boiler is introduced into a main steam port of the steam condensing and compensating turbine through the pipeline; and low-temperature saturated steam produced by the cogeneration-type boiler is introduced into the steam compensating port of the steam condensing and compensating turbine through the pipeline so that the steam condensing and compensating turbine drives the generator to generate electricity. By taking energy cascade utilization as a theoretical basis and taking heat exchange equipment of the vertical cooling machine as source equipment, the system integrates and recoveries the afterheat of sintering flue gas efficiently and realizes the maximum generated electricity converted from heat power.

The invention relates to a fuel cell system and a low-temperature starting control method thereof. In the low-temperature starting process, the voltage of a galvanic pile is controlled in a staged mode through an electronic load, the output current of the galvanic pile is controlled in a staged mode, a drying film can absorb generated water easily, the performance of the galvanic pile is improved, and the heat yield of the galvanic pile is further increased by controlling the voltage of the galvanic pile. The galvanic pile is heated, and pore spaces of the catalyst layer and the diffusion layer are fully utilized; besides, the generated electric energy is directly supplied to the PTC to heat the cooling liquid, and in order to prevent the PTC from being overheated and discontinuously starting a water pump, the opening degree of a thermostat is controlled to enable the fuel cell system to work in a small cycle, and the PTC directly heats the cooling liquid. Compared with the prior art, quick start of the fuel cell in a low-temperature environment is facilitated, the low-temperature starting success rate of the fuel cell is improved, and the service life of the fuel cell at a low temperature is prolonged.

The invention relates to a fuel cell cathode recirculation low-temperature starting system and a control method thereof. The system comprises an air supply subsystem, a hydrogen supply subsystem and a cooling circulation subsystem. Through system control, hot air directly heats an MEA, electric energy output by a galvanic pile enables a PTC to heat cooling liquid, the operation conditions of the galvanic pile are controlled to increase self-produced heat, so that the galvanic pile is jointly heated, energy is utilized to the maximum extent to heat the galvanic pile, and the low-temperature starting capability is enhanced; when the temperature of the cooling liquid at the outlet of the galvanic pile reaches 0 DEG C, the galvanic pile preheating temperature rise stage is completed. Compared with the prior art, the method is beneficial to realizing quick start of the fuel cell in a low-temperature environment, the failure rate of low-temperature start of the fuel cell is reduced, and the service life of the fuel cell at a low temperature is prolonged.

The invention discloses a metal stack fuel cell low-temperature start-up heat control system and an operation method. The metal stack fuel cell low-temperature start-up heat control system comprises an external heat source heating system, an internal heat source heating system, a pressure/temperature patrol inspection system and a control system. The external heat source heating system is used forheating the metal stack from the outside; the internal heat source heating system is used for heating the metal stack from the inside; the pressure/temperature patrol inspection system is used for patrol inspection of the pressure and temperature on the metal stack fuel cell; the control system is used for integrated control of the metal stack fuel cell before and after the low temperature start-up is completed. The invention effectively enables the metal stack fuel cell to start quickly by utilizing the heat system integrating an external heat source and an internal heat source without usingtoo much auxiliary equipment, and effectively alleviate the permanent damage to the metal stack caused by the start-up failure.

The invention discloses an installing construction method for semiconductor manufacture procedure gas conveying pipelines. The installing construction method includes the following steps that (1), a clean region is preset on a construction site, and a clean space is constructed; (2), all apparatuses used for construction are retested and sealed to prevent contamination; (3), the pipeline is cleanly machined in a sealed mode unit by unit in the clean space, and pipe orifices are sealed immediately after machining is completed; (4), the conveying pipeline is installed, protective gas is continuously injected in the pipeline in the installing process and at the operation intervals; (5), the tail gas pipeline is installed according to the structure of a plasma and washing processing system; (6), a gas device is installed, and the pipelines are connected with the gas device in a radial face seal connecting mode; (7), an electrostatic grounding system and an outdoor anti-thunder electric induction grounding system are installed; (8), pressure detection, helium mass spectrum leakage detection, moisture detection, cleanliness detection and oxygen detection are carried out until all results are qualified; (9), a tail gas treatment test is carried out until a test result is qualified.

The invention relates to the technical field of petrochemical and coal chemical industry, and provides a sulfur recovery Klaus furnace oxygen-enriched blast management system and method. The sulfur recovery Klaus furnace oxygen-enriched blast management system comprises a compressor front oxygen interface safety device, a compressor and a compressor rear oxygen-enriched monitoring system; the compressor front oxygen interface safety device can mix oxygen and air in front of the compressor, and the process can be completed by using low pressure oxygen, no oxygen booster is needed, mixing is uniform, safe, and reliable, and cost is low; and the concentration, the flow rate, the temperature, the pressure, the electrostatic discharge and the particle filtration of oxygen can be strictly monitored and managed; optimization is realized through calculation using an oxygen-enriched uniform mixing monitoring module. According to the system provided by the invention, the whole oxygen enrichmentprocess is monitored through the compressor front oxygen interface safety device and the compressor rear oxygen-enriched monitoring system, so that the safe operation and the service life of the Klausfurnace can be ensured, and the hydrogen sulfide treatment capacity of the Klaus furnace is improved.

The invention provides a self-flow-disturbing injection mold pouring system, belongs to the technical field of injection molding processing, and solves the technical problem that existing thick-walledtransparent plastic parts are susceptible to flow marks and other injection molding defects. The self-flow-disturbing injection mold pouring system comprises a tubular runner for being connected withan external plastic melt and a gate for enabling the runner to communicate with a mold cavity, wherein a plurality of pin fins arranged at intervals are arranged in the gate. The system is characterized in that the runner communicates with the gate by a flat buffer pipe for leading the plastic melt to flow upwards, the gate is used for guiding the plastic melt to flow downwards and is flat tubular, the pin fins are arranged in at least one row, and each row of the pin fins is arranged in the width direction of the gate. The flow marks of the thick-walled transparent plastic parts are effectively prevented by improvement of the pipe structure and the arrangement manner of the pin fins of the pouring system.

The invention discloses a cabinet type computer network server, and particularly relates to the technical field of computer servers. The cabinet type computer network server comprises a cabinet body,a partition plate is fixedly connected to the lower portion of the interior of the cabinet body, and a plurality of carrying plates are arranged at the two sides of the upper portion of the partitionplate respectively. One ends of the carrying plates are fixedly connected with the two sides of the cabinet body respectively, a cabinet door is arranged at one side of the front portion of the cabinet body, and one side of the cabinet door is hinged to the side wall of the cabinet body. According to the present invention, by arranging a heat dissipation pipe, a water tank, a connecting hose, a water pump, an exhaust fan, a T-shaped plate, a driving motor, a cam and a spring, the heat dissipation of the devices in a cabinet is facilitated, and the air blown out of an air outlet passes throughthe water in a water cavity to be cooled when the air is in the air cavity, so that the air cooling effect is better. During heat dissipation, the heat dissipation pipe can move up and down, so that the air outlet can blow air up and down, the heat dissipation effect is improved, and the normal operation and the service lives of the devices are guaranteed.

The invention discloses a method for fermenting alcohol by reusing alcohol grain liquid and medium-temperature anaerobic effluent. According to the process method, burdening liquid is added according to the feed liquid weight ratio of 1:1.5-2.4, the burdening liquid is composed of the alcohol grain liquid, the medium-temperature anaerobic effluent and supplemented clean water, the effluent is reused, and ammonium hydroxide or sulfuric acid are not required, so that the effluent treatment cost can be reduced. By controlling the feed water ratio and adjusting the proportion of alcohol grain liquid and the medium-temperature anaerobic effluent to control the pH value, the complex cost-increasing procedures of conducting acid radical removing, ammonia nitrogen removing and additionally adding of acid or alkali to adjust the pH value and the like on the medium-temperature anaerobic effluent in the traditional process are avoided, the production efficiency is greatly improved, the production cost is reduced, sewage discharge in alcohol production is greatly reduced, feed mixing water use cost and sewage treatment cost are saved, more additional products are produced, and considerable market economical benefit is brought.

The invention relates to the technical field of air conditioning, in particular to an air conditioner heat storage control method and aims at solving the problems that according to an existing preheating scheme, the service life of a compressor is short, and coil pipe temperature fluctuation is large. In order to achieve the purpose, the heat storage control method comprises the steps that when aprediction time point is reached, based on a pre-established scoring system, the probability score of starting a heating mode of an air conditioner at the next prediction starting moment is calculated; when the probability score is larger than a set threshold value, the compressor is controlled to run at a first heat storage frequency, and an outdoor draught fan is controlled to run; In the running process of the compressor, the coil pipe temperature of an indoor heat exchanger is detected; the coil pipe temperature and a first preset temperature are judged; and based on a judgment result, theopening and closing of an outdoor draught fan and/or the running frequency of the compressor are/is selectively adjusted. According to the heat storage control method, the service life of the compressor can be prolonged, fluctuation of the coil pipe temperature in the air conditioner heat storage process is reduced, and user experience is improved.

The invention relates to a method for determining the thickness of a high speed railway bedding structure of a ballast track. The method mainly comprises the steps of determining the wheel loading force of the adjacent sleeper and the average pressure of the left side of the bottom of a sleeper 3 based on the normal distribution curve; considering the vertical diffusion of the wheel loading force of one sleeper side (left side) right below a wheel, the stress of a position right below the center of the sleeper bottom (left side), diffused obliquely by the wheel loading force of the other sleep side (right side), and the stress of a position right below the center of the sleeper bottom (left side), diffused obliquely by the wheel loading force of the bottoms of the left side and the right side of the adjacent sleeper, so as to obtain the relation of the total load stress of the vehicle in a depth position right below the wheel at left side and the depth and further obtain the thickness of the bedding structure. The method has simplicity in calculation and accurate result, thus further ensuring the service life of the railway and the safety operation of a train, and also reducing the railway repairing and maintaining costs and preventing waste.

High-temperature resistant lubricating grease for bearings and a preparing method thereof are disclosed. A dielectric layer is prepared from polytetrafluoroethylene, agar, pentaerythritol, sulfosuccinate, polyphenyl ether, polyacrylamide, silicon oxide, calcium silicate and molybdenum disulfide. The method includes crushing, homogenizing, heating, mixing, stirring, cooling, grinding, filtration and filling steps. The lubricating grease has high resistance to high temperatures, can have high consistence and adhesive force in a high-temperature environment, and has good lubricating effects in ahigh-temperature environment. The preparing method is simple and the production cost is low.

The invention relates to the technical field of motor cooling, and provides a motor stator cooling system and a motor, the motor stator cooling system comprises a stator sleeve, a stator core and a stator winding, the stator sleeve comprises a first sealing cavity, the first sealing cavity is connected with the stator core and wraps the stator winding, the interior of the first sealing cavity is suitable for being provided with a cooling medium, and the first sealing cavity is provided with a liquid inlet structure, a first cooling channel and a liquid outlet structure which are used for flowing of the cooling medium and are sequentially communicated; and according to the invention, the cooling medium in the first sealing cavity is used for cooling the stator winding, and compared with a heat dissipation and cooling mode that an external fan is used for blowing air for the existing stator winding, the stator winding is wholly immersed in the cooling medium, so that the stator winding can be fully cooled, the cooling effect on the stator winding is improved, and the normal operation and service life of the stator winding and the motor are ensured.

The invention provides an oily self-lubricating bearing retainer material and a preparation method thereof, and belongs to the technical field of preparation of retainer materials. According to the preparation method, by adopting a lubricating oil microcapsule-phenolic resin solution as a raw material, in the use process of the retainer material, as the material surface is worn, lubricating oil microcapsules dispersed in the material are worn out, and lubricating oil oozes out, thereby lubricating a friction interface, achieving the effect of the frictional wear performance of the retainer material, avoiding the further wear of the retainer material, and ensuring the running precision and service life of a bearing. The lubricating oil microcapsules store the lubricating oil in the retainermaterial, and the oil content can reach up to 20% and is much higher than that of a porous oily phenolic retainer (less than 10%). The use of the lubricating oil microcapsules does not significantlyreduce the mechanical strength of the retainer material as pores, and when the content of the lubricating oil microcapsules is 35%, the ring tension of the retainer material is still higher than 80 MPa.