46results about How to "Reduce energy supply" patented technology

The invention belongs to the fields of solid waste recycling technologies and biomass energy, and discloses a method for preparing bio-oil through co-pyrolysis catalytic hydrogenation by means of algae and waste rubber. The method comprises the steps that alga biomass and waste rubber are smashed, dried and mixed evenly, a co-pyrolysis reaction is performed on a fluidized bed by taking nitrogen gas as carrier gas and taking quartz sand as a heat carrier, obtained pyrolysis steam is condensed into crude bio-oil through spray cooling, catalytic hydrogenation modification is performed on the crude bio-oil and an HZSM-5 molecular sieve catalyst after water is removed, and spray cooling and water removing are performed to obtain the high-quality liquid bio-oil. According to the method, the synergistic effect based on the algae and the waste rubber is comprehensively utilized, oxygen in the bio-oil is removed in the forms of carbon dioxide and water by adopting catalytic hydrogenation, and therefore the quality of the bio-oil is improved; meanwhile, the waste rubber is high in hydrogen content and is a potential hydrogen source, and through co-pyrolysis between the waste rubber and the alga biomass, the oxygen content in the bio-oil can be significantly reduced, and the hydrogen using amount of a hot high-pressure separation catalytic hydrogenation device is indirectly decreased.

The invention provides a drug for preventing and treating alopecia and belongs to the technical field of drug preparation. The drug for preventing and treating alopecia contains the following effective constituent: compound of more than one of flavonoids compound for reducing capillary permeability, calcium and vitamin C. The compound provided by the invention can be used for achieving the purposes of effectively preventing and treating alopecia and promoting the hair growth, is safe, is wide in universality, is effective in treatment and is suitable for treatment of androgen alopecia.

The disclosure relates to a fuel cell system comprising a fuel cell stack for providing an electrical power P_stack depending on a power demand, at least one auxiliary unit for operating the fuel cell stack with an electrical power consumption P_aux, at least one consumer with an electrical power request P_use, and a control unit for regulating the power demand as well as a method for controlling such a fuel cell system. It is provided that the control unit is configured to selectively operate the fuel cell system in a first operating mode or in a second operating mode, whereby the fuel cell stack is turned off depending on the operating mode upon the falling below of an optimal efficiency degree operating point P(η_max) of the fuel cell system or a minimum operating point P_min of the fuel cell stack. In particular, at least one auxiliary unit is also turned off in the first operating mode, when the optimal efficiency degree operating point decreases.

The invention provides a piezoelectric micro-thruster comprising an air inlet (1), a housing (2), a power interface (3), a filter (4), a return spring (5), a valve core (6), a piezoelectric stack (7), a washer spring (8), a valve seat (9), a seal ring (10), an adjusting ring (11), a base (12) and a nozzle (13). In the case of power-off, the surface of the valve core (6) is tightly attached to the surface of the valve seat (9) and the surface of the adjusting ring (11), and the piezoelectric micro-thruster is off; in the case of power-on, the piezoelectric stack (7) deforms to drive the valve core (6) to move, the surface of the valve core (6) separates from the surface of the valve seat (9) and the surface of the adjusting ring (11), the piezoelectric micro-thruster is on and generates thrust. The sealing parts, such as the valve core (6), the valve seat (9) and the adjusting ring (11), are all made of metal, thus the piezoelectric micro-thruster is metal sealed. The piezoelectric micro-thruster is short in response time, continuously adjustable in thrust, low in power consumption and long service, meets the strict requirements of miniature satellites and missile precision guides for micro-thrust systems and is light in weight and small in size, and more weight and space are saved for the miniature satellites.

The invention discloses a high efficient rapidly-complementing energy bag for childbirth of lying-in women and a preparation method of the high efficient rapidly-complementing energy bag, and belongs to the technical field of jelly beverages and special diet foods. The high efficient rapidly-complementing energy bag is characterized by being prepared from a childbirth energy jelly bag and an electrolyte water replenishing liquid bag. The high efficient rapidly-complementing energy bag disclosed by the invention has the following advantages and beneficial effects that a unique sectional type energy complementing formula is adopted, so that safe, quick and continuous high energy can be provided for natural childbirth lying-in women within a short time; and besides, electrolyte and vitamins losing during childbirth are complemented. The high efficient rapidly-complementing energy bag is convenient to take, and is in the shape of a jelly, so that the high efficient rapidly-complementing energy bag is easy to swallow, aspiration pneumonia due to mistaken aspiration of the lying-in women is avoided, and the defects of chocolates and other functional beverages are overcome; the high efficient rapidly-complementing energy bag is fresh in mouth feel, easy to absorb, and easy to digest, sequential energy supply only needs 15 minutes, and energy supply is long and lasting, so that the high efficient rapidly-complementing energy bag can help the lying-in women to realize normal childbirth, the childbirth period is shortened, and suddenly-arising conditions of dystocia, fetal asphyxia and the like due to insufficient childbirth force of the lying-in women are effectively avoided. Products of the high efficient rapidly-complementing energy bag are easy to produce, and normal to eat, and any dangers and toxic and side effects cannot be caused for bodies.

The invention relates to a frequency changer, a motor testing system and method and a mounting method. The system comprises a control cabinet, an asynchronous motor driven frequency changer, an energyfeedback unit, a permanent magnetic synchronous motor driven frequency changer, a tested voltage current sensor, a system voltage current sensor and a testing stand, the testing stand comprises a mounting base, a triphase alternating-current asynchronous motor, a permanent magnetic synchronous motor, a torque sensor, a coupler, a speed reducer and a lifting movable motor mounting support, input ends P and N of the permanent magnetic synchronous motor driven frequency changer are connected with those of the energy feedback unit, and the output end of the energy feedback unit is connected with380V of a power grid. Energy input to the testing system by the power grid outside is reduced, so that the objectives of saving energy and protecting environment.

The invention discloses an energy-recyclable frequency converter testing system, an energy-recyclable frequency converter testing method and an energy-recyclable frequency converter installation method. The testing system comprises a front-end frequency converter, a front-end motor, a torque sensor, a rear-end frequency converter and a rear-end motor, wherein an output end of the front-end motor is connected with a front end of the torque sensor, a rear end of the torque sensor is connected with a rear-end motor, the bottom parts of the front-end motor and the rear-end motor are fixed on a base, the front-end frequency converter is powered by an external power grid which is connected with the input end, an output end of the front-end frequency converter is connected with the front-end motor, an output end of the rear-end frequency converter is connected with the rear-end motor, and P and N input ends of the rear-end frequency converter are connected with P and N input ends of the front-end frequency converter. The testing system reduces the frequency of the rear-end frequency converter slowly in the frequency converter testing process, the rotation speed of the front-end motor is greater than that of the rear-end motor, that is, the front-end motor works, and the rear-end motor generates power, thus part of energy is fed back and reused when the front-end frequency converter is in tests, thereby reducing energy supply of the external power grid.

The invention discloses a freshwater generation device. The device comprises an air inlet pipe, a submerged type condensation pipe set and a freshwater collection barrel, the submerged type condensation pipe set is fixedly connected to the lower portion of the air inlet pipe and communicated with the air inlet pipe, an air inlet is formed in the top of the air inlet pipe, the freshwater collecting barrel is communicated with the bottom of the submerged type condensation pipe set, an air outlet pipe is arranged on the top of the freshwater collection barrel, and an outlet of the air outlet pipe is higher than the submerged type condensation pipe set. Freshwater is obtained from air by means of the temperature difference, and the basic physiological requirements of people in the activity implementation process in a water-free area can be met. Accordingly, few parts are used, processing and assembling are easy, and the integration level is high, so that the structure is simple, carrying and transferring are easy, the device is very suitable for a small team to use, the mobility of steam action is improved conveniently, manufacturing is easy, the capital investment in production is small, and the operation and maintenance cost in the use process is low, so that the cost is low, the use cost-benefit ratio is high, and the device has the advantages of being easy to install, low in energy consumption and flexible in usage mode.

A stencil is made by thermally forming perforations arranged in both a main scanning direction and a sub-scanning direction in a thermoplastic resin film of heat-sensitive stencil material by the use of a heat source which is heated through supply of energy. Supply of energy to the heat source is cut so that the quotient obtained by dividing a maximum diameter of a perforation at the time at which supply of energy to the heat source is cut by the energizing time is not smaller than 0.015 m/s and not larger than 0.23 m/s.

The present invention relates to a method for preparing low carbon olefins from an oxygen-containing compound, and mainly solves the problems that low carbon olefin yield is not high, art byproducts of hydrocarbons with four or more than four C atoms are more in the prior art. According to the method for preparing the low carbon olefins from one oxygen-containing compound, a product produced by contact of the oxygen-containing compound with a catalyst I in a prereactor enters into a fluidized bed reactor, and contacts with a molecular sieve based catalyst II to produce a product stream containing the low carbon olefins, after heat transfer with the prereactor, the product stream enters into a product separation system, a to-be-regenerated catalyst in a settler is divided into two parts to enter into a fluidized bed reactor and a regenerator, the regenerated catalyst is degassed by a stripper, then enters into a fluidized bed reactor, hydrocarbons with four or more than four C atoms are contacted with a catalyst III in a fixed bed reactor, the produced product stream containing the low carbon olefins enters into the settler, and by the technical schemes, the problem are well solved, and the method can be used for industrial production of preparing of the low carbon olefins from the oxygen-containing compound by conversion.

The invention discloses an engineering machinery braking pedal which comprises a foot pedal (2). The foot pedal (2) is connected with a rotation rod (4) in a hinged mode. The rotation rod (4) is connected with a rotation plate (7) in a hinged mode. A pedal switch (5) is arranged on the foot pedal (2). The pedal switch (5) is connected with an electromagnetic valve on a power system oil way through a circuit. The invention further discloses an operating method of the braking pedal. According to the technical scheme, power cutting-off is added before a braking process, energy supplied to an engine is reduced by cutting-off the oil way, and therefore traction force of a whole vehicle is reduced. Then, braking is carried out through an air brake valve, therefore, the air brake valve works with low loads, and reliability and safety of braking are improved.

The invention provides a method for treating pickling wastewater and recovering byproducts through reduced pressure and low temperature catalytic fractionation, belongs to the technical field of environmental protection, and especially relates to terminal treatment of wastewater containing hydrochloric acid and metal salts and recycling of wastes. The method comprises the following steps: 1, preparing a material: filtering the pickling wastewater to remove particles with large particle sizes, and fully mixing the filtered pickling wastewater with a catalyst in a mixing device until uniformity; 2, fractioning: pumping the obtained mixed solution to a low pressure fractioning device, and separating an acid solution at a low temperature under a low pressure; 3, separating metal salts: allowing the obtained residual liquid to enter a metal salt separation device, adjusting the pH value until the metal salts precipitate, and carrying out adsorbing separation by using a rotating magnetic disc; 5, carrying out solid-liquid separation: allowing slurry to enter a solid-liquid separation device, and dehydrating; and 5, carrying out catalyst concentration: allowing the obtained metal salt removed residual liquid to enter a concentration device, carrying out low temperature and low pressure concentration, and returning the obtained concentrated catalyst to make the catalyst participate in the reaction. The reduced pressure and low temperature catalysis method is adopted to treat the pickling wastewater, so the acid solution and metal salt recovery rate is improved, the treatment cost is reduced, and the present technological gaps in low-cost, high-efficiency and zero-pollution treatment of the pickling wastewater are filled.

The invention provides a device for ascending, descending, floating and suspending. The device comprises weight overcome lifters, a lifter connecting frame, a top cover, a body of the device for ascending, descending, floating and suspending, a head of the device for ascending, descending, floating and suspending, a tail of the device for ascending, descending, floating and suspending, an upper window, a lower window, a body front glass window, a cabin door, a body back glass window, a tail fin of the device for ascending, descending, floating and suspending, a steering propeller of the devicefor ascending, descending, floating and suspending, machine wheels, a damping landing gear, a landing gear capable of containing the device for ascending, descending, floating and suspending, and a buffer protective air bag structure; the weight overcome lifters are installed in the middles of the left and right parts on the inner side of the lifter connecting frame through bolts. The purposes ofascending and descending of a construction site and a large conference hall can be achieved, and therefore people or objects can ascend, descend, float and suspend at the super-flow altitude, and once a machine or a circuit fault happens, no falling accident is caused.

The present invention relates to a water and oil type fryer minimizing the transfer of heat from a layer of oil for frying to a water layer, the water and oil type fryer comprising: an oil cask for frying having a connection pipe having a predetermined cross-sectional area ratio; a gas burner supplying heat to a heating flow path, or an electric heater directly supplying heat to oil for frying; a container for cleaning having a drain pipe, and simultaneously accommodating oil which is connected with oil in the oil cask through the connection pipe, and water which forms a boundary with the oil; and a sediment layer discharge pipe positioned below a boundary surface of oil and water.

The invention discloses a coal scrap auxiliary drying device. The coal scrap auxiliary drying device comprises a mounting box, a mounting cavity is formed in the mounting box, a motor is fixedly mounted on the bottom end wall of the mounting cavity, the upper end of the motor is in power connection with a first shaft, a first bevel gear and a second bevel gear are fixedly mounted on the upper partand the lower part on the first shaft correspondingly, a first fixed block is fixedly mounted on the bottom end wall of the mounting cavity, a second shaft is rotatably mounted in the first fixed block, and a third bevel gear engaged with the second bevel gear is fixedly mounted on the second shaft. Screened small-particle coal is collected and prompted to be heated and combusted to provide powerfor a drying cavity, and thus energy supply of drying is reduced; integrated utilization of resources is promoted, and thus waste of the resources is avoided; and then water vapor generated by evaporation is collected to avoid leakage.

The invention provides a power supply control method for a local power grid constructed by combining micro-grids, and the method is suitable for a local power grid provided with an energy storage unitin each micro-grid, and comprises the following steps of: acquiring load power of each micro-grid in real time, and calculating the sum of the load power to serve as a main grid load; comparing the main network alternating current bus power with a main network load; when the main network alternating current bus power is greater than the main network load, reducing the energy storage units in thedischarging state or increasing the energy storage units in the charging state; and when the main network alternating current bus power is smaller than the main network load, an energy storage unit ina discharge state is added. According to the invention, through arrangement of the energy storage unit, the power adjustment range of the microgrid alternating current bus in the microgrid is more flexible and wider, and the electric energy utilization rate of the distributed power supply is improved.