15results about How to "Reduce volume requirements" patented technology

The invention discloses a biological enhancement sewage treatment device based on an iron-based magnetic biological carbon carrier, and aims to overcome the defect that a flocculating agent is difficult to reuse in the existing sewage treatment process. The device comprises a regulating tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a dosing device and a cyclone, the cyclone is used for separating sludge from an iron-based magnetic carbon carrier, and a magnetic field is arranged outside the cyclone to improve the separation efficiency of the iron-based magnetic carbon carrier; wherein the regulating tank, the anaerobic tank, the aerobic tank and the secondary sedimentation tank are sequentially communicated, an iron-based magnetic carbon carrier obtained by separation of the cyclone is delivered into the aerobic tank, and the iron-based magnetic carbon carrier is simultaneously used as a flocculating agent and a strain carrier. The iron-based magnetic carbon carrier is used as a flocculating agent and a strain carrier at the same time, so that the input of materials is reduced, and the iron-based magnetic carbon carrier is recycled by combining a cyclone with magnetism.

The invention discloses a heat compensation type carbon dioxide mixed working medium energy storage system with a cascade heat storage function. The heat compensation type carbon dioxide mixed working medium energy storage system at least comprises a cascade heat storage subsystem, a carbon dioxide mixed working medium energy storage subsystem and a heat compensation subsystem. The cascade heat storage subsystem comprises a plurality of stages of heat storage units with different temperatures, each stage comprises a heat storage heat exchanger, a high-temperature heat storage medium storage tank and a low-temperature heat storage medium storage tank, and heat energy utilization is optimized. The carbon dioxide mixed working medium energy storage subsystem comprises a high-pressure storage tank, a low-pressure storage tank, a compressor unit and an expansion unit, and efficient compression in the energy storage stage and efficient expansion in the energy release stage are achieved. The heat compensation subsystem is arranged between the highest-temperature-stage heat storage unit and the expansion unit, heat compensation is conducted on the carbon dioxide mixed working medium through the photo-thermal subsystem and / or industrial waste heat, the temperature of the carbon dioxide mixed working medium is increased, and the circulation efficiency of the system is improved. In addition, the system further comprises a waste steam recovery subsystem, and the evaporation efficiency and the energy utilization efficiency are further improved through high-temperature waste steam exhausted by the turbine.

The utility model discloses a handbag type boutique packing box capable of being folded into a flat plate shape, which comprises a box bottom wall, a box front side wall capable of being turned over is connected to the front side of the box bottom wall, a box rear side wall capable of being turned over is connected to the rear side of the box bottom wall, and a front closing part capable of being turned over is arranged on one side, far away from the box bottom wall, of the box front side wall. A foldable rear closing part is arranged on one side, far away from the box bottom wall, of the box rear side wall; a pair of cartridge end walls; two front connecting pieces; two rear connecting pieces; and a locking structure. The containing space can disappear temporarily through the flat-plate-shaped structure, the box bottom wall, the box front side wall and the box rear side wall are transferred to the same plane, and the pair of box end walls are tightly attached to the plane in a folded mode. On the one hand, the size requirement for the storage space in the production link of the packaging box is reduced, or more packaging boxes can be stored in the storage space with the same size, on the other hand, stacking is facilitated through the flat-plate-shaped structure, and the cost needed in the transportation link is reduced.

This invention discloses a low-corrosion chloride molten salt heat transfer and storage medium, method, and application, belonging to the field of molten salt thermal storage technology. The high-heat-capacity, low-corrosion carbonate molten salt heat transfer and storage medium of this invention is composed of 18%~22% potassium chloride, 6%~10% sodium chloride, 1%~3% aluminum powder, 1%~3% magnesium powder, 1%~3% zinc powder, with the remainder being zinc chloride. Its key feature is the introduction of metal powder into the molten salt, which not only achieves excellent thermal storage performance at 600℃~800℃, but also reduces corrosion by utilizing the potential regulation ability of dissolved metal ions and the formation of highly active [Al] from gaseous chloride products through physical and chemical adsorption. This low-corrosion chloride molten salt heat transfer and storage medium achieves excellent thermal storage performance and low corrosivity, and can be applied in solar thermal power generation and molten salt energy storage.

The invention discloses a method and system for determining the hydrogen storage volume of a hydrogen production system and a storage medium, and relates to the technical field of hydrogen production, hydrogen storage and pipeline hydrogen transportation, and the method comprises the following steps: S1, obtaining the annual hydrogen unit time fluctuation yield of a hydrogen production unit, and setting the hydrogen storage volume; s2, the average hydrogen conveying amount of the hydrogen storage unit in each time period is determined according to the hydrogen unit time fluctuation yield and the hydrogen storage volume; s3, performing analog simulation calculation on the long-distance pipeline unit by taking the average hydrogen conveying amount of each time period as a boundary condition to obtain an analog simulation result; s4, judging whether the analog simulation result can pass pipeline fatigue checking or not; if not, the hydrogen storage volume of the hydrogen storage unit is reset, the steps S2-S4 are repeated till the fatigue checking requirement is met, and the final hydrogen storage volume is determined. Through the content of the invention, the hydrogen storage volume without influencing the service life of the pipeline can be reasonably set, and the effects of reducing the configuration investment and safety cost of the storage tank and guaranteeing the service life of the hydrogen conveying pipeline are achieved.

The utility model discloses a hexagonal prism type boutique packaging box capable of being folded into a flat plate shape. The hexagonal prism type boutique packaging box comprises a box peripheral wall, a box front cover, a locking structure and a pair of hexagonal box end walls. The box peripheral wall comprises a box front side wall II, one side of the box front side wall II is connected with a box front side wall I in a turnover mode, the other side of the box front side wall I is connected with a box bottom wall in a turnover mode, the other side of the box bottom wall is connected with a box rear side wall I in a turnover mode, and the other side of the box rear side wall I is connected with a box rear side wall II in a turnover mode. The other side of the box rear side wall II is connected with a box top wall in a turnover mode. The packaging box has the advantages that the containing space can disappear temporarily through the flat-plate-shaped structure, the box peripheral wall, the box front cover and the pair of box end walls are transferred to the same plane, and therefore the requirement for the size of a storage space in the production link of the packaging box can be lowered, or more packaging boxes can be contained in the storage space with the same size.

The present invention provides a bed frame with a tail portion of the same length in the use state and a combined lifting electric bed. After being disassembled and packed, the packaging size is smaller; without affecting the operation of the motor, the adaptability of the bed legs is provided, and the size of the whole bed is further reduced. A bed frame includes a first transverse frame, a second transverse frame, a first longitudinal frame, and a second longitudinal frame; the second longitudinal frame is integrally formed by a middle portion, a first extension portion, and a second extension portion; the first transverse frame, the second transverse frame, the first longitudinal frame, and the second longitudinal frame form a polygon; the first longitudinal frame and the second longitudinal frame are distributed in sequence from the head of the bed to the tail of the bed; support devices are respectively provided on the outer sides of the surrounding frames of the first transverse frame and the second transverse frame; the support device is movably connected to the first transverse frame and the second transverse frame.

This invention relates to the field of materials testing technology, specifically to a method for testing powder X-ray diffraction (XRD) samples without impurity peaks based on directional pelleting, which is particularly suitable for XRD testing of small quantities of powder samples. This method, through pelleting combined with glass slide elevation, solves the problems of powder scattering and impurity peak interference when the sample quantity is insufficient in existing technologies, thus improving the reliability and flexibility of XRD testing.

The application discloses a near-isothermal compression device and a compression system using the same. The near-isothermal compression device comprises a compression cylinder, an air-water separator, and a water supplement tank. The compression cylinder is connected with a low-pressure gas storage tank through an air inlet. The air-water separator is connected with the compression cylinder through an air outlet of the compression cylinder, and is used for separating air and water of the compression cylinder. The air-water separator is connected with a high-pressure gas storage through an air outlet. The water supplement tank is connected with the air outlet of the compression cylinder, and is connected with the air-water separator through a water inlet. A radiator is connected with the water outlet of the compression cylinder and the water outlet of the water supplement tank through inlets, and is used for radiating water in the radiator. The near-isothermal compression device ensures that the last stage of the compression process is close to a near-isothermal process. The compression system has less heat surplus and total power consumption, and the compression power consumption is significantly reduced, so that the overall efficiency of the system is further improved.

The present invention relates to a pressure suppression pool device and a nuclear reactor, wherein the pressure suppression pool device comprises a shell and at least one hollow pressure suppression tube, wherein a closed cavity and a plurality of partitions for delaying gas flow are arranged in the shell; the cavity is filled with coolant, and the partitions are immersed in the coolant; and a retention space for accommodating gas is arranged above the coolant inside the cavity; the pressure suppression tube penetrates the outer wall of the shell, and comprises an outer shell section located outside the shell, and an inner shell section located inside the shell; the end of the inner shell section is inserted into the coolant, and the outer shell section is connected to the gas in the environment; the pressure suppression pool device belongs to a non-active system, and has high safety and reliability; it has high cooling efficiency and significant pressure suppression effect, and can effectively suppress the increase of containment pressure and temperature under predetermined working conditions; and it has low requirements for space and volume of coolant.

The utility model discloses a radioactive waste liquid decay tank automatic control system with a sediment cleaning function, which belongs to the technical field of decay tanks and comprises a decay tank module. The decay tank module comprises a decay tank, a partition plate, a valve, a decay tank inlet, a coagulant aid adding port, an exhaust port, a sampling port, a sediment discharge port and a waste liquid discharge port, and further comprises a control module. Through the mode, the decay tank disclosed by the utility model can be used for scraping precipitates adhered to the inner wall of the decay tank during previous precipitation, and high-radioactivity waste liquid and low-radioactivity waste liquid are separately precipitated, so that the volume demand of the decay tank is reduced, and the precipitation time is shortened.

The utility model discloses a triangular prism type boutique packaging box capable of being folded into a flat plate shape, which comprises a box body, a pair of triangular box end walls and a pair of triangular box end walls, and the box body comprises a box front wall and a box rear wall which can be connected in a turnover mode. Each front connecting piece comprises a first sheet body and a second sheet body which can be connected in a turnover manner; each rear connecting piece comprises a third sheet body and a fourth sheet body which can be connected in a turnover manner; the box cover comprises a box top wall and a box front cover which can be connected in a turnover manner; the locking piece can continuously provide acting force for the box front cover to be tightly attached to the outer surface of the box front wall. The packaging box has the advantages that the containing space can disappear temporarily through the flat-plate-shaped structure, the box body and the box cover are transferred to the same plane, the requirement for the size of a storage space in the production link of the packaging box is lowered, or more packaging boxes can be contained in the storage space with the same size; and on the other hand, the flat-plate-shaped structure facilitates stacking, and cost needed in the transportation link can be reduced.

The invention relates to a hydrogen storage and transportation method and device of a hydrogen production system and a storage medium, and relates to the technical field of hydrogen production, hydrogen storage and pipeline hydrogen transportation. According to the annual hydrogen unit time fluctuation yield of the hydrogen production unit and the maximum hydrogen storage volume of the hydrogen storage unit, determining conditions are constructed; dividing the annual hydrogen fluctuation yield per unit time of the hydrogen production unit into a plurality of time periods by utilizing the judgment conditions, so that the hydrogen fluctuation yield of each time period can be stably output according to the average hydrogen yield of the time period; and the average hydrogen yield in the multiple time periods serves as the input quantity input to the starting end of the long-distance pipeline unit by the hydrogen storage unit in each time period to be conveyed. Through the content of the invention, the hydrogen buffer capacity of the hydrogen production end storage tank and the hydrogen storage capacity of the long-distance pipeline unit can be considered, the stability of hydrogen output is improved, and the configuration volume requirement of the storage tank and the engineering cost are reduced.

The invention relates to a method for controlling at least one torque transmission device (D1, D2) by means of a hydraulic system (1), which has a pump unit (7) in which an electronically controlled electric motor (12) drives a pump (13) which delivers a volume flow into a pressure line (10), a system pressure regulating valve (11) arranged between an oil sump (8) and the pressure line (10), a slave cylinder (3, 4) and a control pressure regulating valve (14, 15) which loads the slave cylinder (3, 4) and which has a connection to the pressure line (10) and a connection to the oil sump (8). In order that the pump unit (7) can be designed small and that the at least one torque transmission device (D1, D2) can be actuated efficiently, in the case of unregulated closing of the system pressure regulating valve (11) relative to the oil sump (8) and unregulated complete opening of the control pressure regulating valve (14, 15) relative to the slave cylinder (3, 4), a pressure medium quantity which is predetermined for setting a contact point of the at least one torque transmission device (D1, D2) is delivered to the slave cylinder (3, 4) for actuating the at least one torque transmission device (D1, D2), and after reaching the contact point the system pressure regulating valve (11) and the control pressure regulating valve (14, 15) are operated in a regulated pressure manner until the at least one torque transmission device (D1, D2) is completely actuated.

The present application relates to a tobacco sheet packaging device, and to the technical field of tobacco processing equipment. The material distribution and spreading unit in the tobacco sheet packaging device is used to evenly spread the tobacco sheets transmitted from the upstream, and the falling and evenly spreading unit is arranged on one side of the material distribution and spreading unit. The falling and evenly spreading unit is used to guide the tobacco sheets transmitted by the material distribution and spreading unit to evenly fall into the packaging box located below, and the pressing unit includes a plurality of pressing pieces arranged side by side at the bottom of the falling and evenly spreading unit. There are a first state and a second state between the plurality of pressing pieces. When in the first state, the plurality of pressing pieces are used to assist the falling and evenly spreading unit in guiding the tobacco sheets to evenly fall into the packaging box, and when in the second state, the plurality of pressing pieces are used to pre-press the tobacco sheets in the packaging box while loading the tobacco sheets. The tobacco sheet packaging device provided by the present application can pre-press the tobacco sheets in the packaging box without stopping the machine, which significantly improves the quality, packaging efficiency and packing density of the cigarette packaging box.