373results about How to "Reduce operating energy consumption" patented technology

The invention discloses a sulfur-manganese composite autotrophic denitrification filler as well as a preparation method and application thereof, and belongs to the technical field of environmental functional materials and polluted water treatment. The sulfur-manganese composite autotrophic denitrification filler contains manganese salt, a sulfur-based component and a cement-based component, the manganese salt comprises one or more of manganese carbonate, calcium manganese ore and rhodochrosite; the sulfur-based component comprises sulfur and sulfur manganese ore; the cement-based component comprises cement, fly ash pottery sand, silica fume, blast furnace slag and metakaolin; the cement comprises one or more of Portland cement, iron aluminate cement and sulphoaluminate cement. The nitrogen removal efficiency of the sulfur-manganese composite autotrophic denitrification filler is superior to that of a sulfur autotrophic denitrification system, the sulfate concentration and nitrite nitrogen accumulation in effluent are remarkably reduced, the service life of the filler is prolonged, and the efficient utilization rate of the material is improved.

The invention relates to the field of metal surface treatment, and discloses a multi-layer vacuum coating method for enhancing the surface of a high-precision metal part, which comprises the following steps: S1, surface treatment: removing surface pollutants and oxide layers through plasma cleaning, and coarsening the surface of a base material through laser etching; s2, coating deposition is conducted, specifically, a metal transition layer and a multi-layer nano hard coating are deposited in an enhanced mode through plasma; s3, depositing a self-lubricating coating: depositing the self-lubricating coating by pulse laser; s4, post-treatment: carrying out ion beam assisted post-treatment; s5, heat treatment: performing low-temperature heat treatment to eliminate stress. Through the plasma enhanced PVD and pulse laser deposition technology, the multi-layer nano coating is deposited under the low-temperature condition, the problem of thermal deformation of a heat-sensitive metal base material caused by a traditional high-temperature process is solved, and it is ensured that the multi-layer coating with high hardness and high compactness can still be formed on the premise that the size precision of the base material is not affected; and therefore, the method can be widely applied to surface treatment of high-precision parts.

The invention discloses a brain-like edge calculation-driven multi-mode intelligent security method and system, and aims to improve the security capability in a complex dynamic scene. According to the method, multi-modal data of videos, audios, sensors and the like are collected, preprocessing is carried out by utilizing a brain-like edge computing gateway, dynamic behavior characteristics are extracted, secondary confirmation is carried out through a lightweight visual large model, and then formal early warning is generated. And the system executes intelligent linkage operation according to the early warning information risk level, and records false alarm information for model optimization. According to the invention, brain-like calculation and multi-modal fusion are adopted to improve the recognition precision, edge calculation reduces delay, an intelligent closed loop realizes differentiated treatment, a low-power design and a modular architecture reduce the cost, and the system has a self-learning capability. The defects of an existing security and protection system in the aspects of dynamic behavior recognition, response speed, disposal intelligence, cost control and the like are effectively overcome. The system is suitable for scenes such as a campus and a community, and provides an accurate, efficient and intelligent security solution.

The invention relates to the field of industrial automation and intelligent logistics, and discloses a vision-based operation management system, which comprises a visual perception module, a traffic modeling module, a path optimization module, a scheduling optimization module and a feedback adjustment module, the visual perception module obtains image or video data in the operation area and extracts the dynamic state of the target equipment; the traffic modeling module constructs a dynamic weighted graph model based on the equipment state data; the path optimization module generates an optimal path of the equipment by solving a dynamic Hamiltonian path problem; the scheduling optimization module optimizes the passing sequence and speed of the equipment based on a game theory model; and the feedback adjustment module monitors the running state of the equipment in real time, detects abnormal conditions and dynamically adjusts modeling and optimization results. The method can effectively solve the problems of path conflict and traffic jam in multi-device collaborative operation, improves the operation efficiency and the resource utilization rate, has high real-time performance and adaptability, and is suitable for various scenes such as logistics storage, industrial production and intelligent transportation.

The invention relates to the technical field of air compressors, and particularly discloses an air compressor operation and maintenance scheduling method and system.The method comprises the steps that historical air consumption data of air consumption equipment is obtained, and an air consumption change period is divided according to the historical air consumption data of the air consumption equipment; determining typical working conditions of the gas consumption equipment according to the gas consumption change period, and determining load predicted values of the air compressors corresponding to the gas consumption equipment according to the typical working conditions of the gas consumption equipment; real-time load data of the air compressor are obtained, and the load prediction value is corrected according to the real-time load data of the air compressor; and determining the load grade of each air compressor according to the corrected load predicted value, and scheduling the air compressors according to the load grade of each air compressor. According to the method, the optimal air compressor scheduling strategy is formulated by predicting the load data of the air compressors, so that the control precision of the air compressors can be effectively improved, the operation energy consumption can be dynamically reduced, and the optimal operation and maintenance effect can be achieved.

The invention discloses a multi-core system on chip and a control method thereof. The method relates to the technical field of chip design, and comprises the following steps: determining a first CPU core for executing a current task from a plurality of CPU cores of a multi-core system on chip; and controlling the first CPU core to execute a current task, and controlling other CPU cores except the first CPU core in the plurality of CPU cores to be in a dormant state. The technical problem that the multi-core system on chip is poor in safety or large in power consumption due to the fact that the multi-core system on chip only supports all the CPU cores to execute the same task or all the CPU cores execute different tasks respectively in the prior art is solved.

The invention relates to a ventilation system for a high-voltage frequency converter room in severe cold areas and a working method of the ventilation system. The ventilation system comprises a fresh air handling unit, a fresh air pipeline, an air supply pipeline, an air inlet pipeline, an air return pipeline, an inner exhaust pipeline and an outer exhaust pipeline. The fresh air handling unit is composed of a fresh air section, a first heating section, an air return section, a second heating section, a fan section and an air supply section. A fresh air electric regulating valve is arranged on the fresh air pipeline; the first heating section and the second heating section are provided with heaters, and the fan section is provided with a fan; an air return electric regulating valve is arranged on the air return pipeline; a natural air inlet electric valve is arranged on the air inlet pipeline; an inner exhaust electric control valve is arranged on the inner exhaust pipeline; an external exhaust air electric regulating valve is arranged on the external exhaust pipeline; the ventilation system can effectively solve the problems existing in temperature control of the high-voltage frequency converter chamber in severe cold and cold areas, and is simple and compact in structure, convenient to construct and use, suitable for various working conditions and climate conditions and remarkable in energy conservation and emission reduction effect.

The invention relates to the technical field of robot control, in particular to a robot rescue emergency control system based on voice interaction. The system is used for performing control voice signal acquisition and rescue emergency voice control task structured analysis by using a built-in voice receiving function of a robot, and generating rescue emergency voice control task structured data; acquiring panoramic image data, environment sensing data and long-distance laser radar data monitored by the robot; the method comprises the following steps: performing global image point cloud model construction and multi-level environment change collaborative optimization processing based on panoramic image data, environment perception data and long-distance laser radar data monitored by a robot, and generating an optimized global image perception model; and performing rescue emergency intelligent control operation on the robot based on the rescue emergency voice control task structured data and the optimized global image perception model. According to the invention, the voice instruction is received through the voice interaction function, so that automatic and efficient robot rescue emergency control is realized.

According to the flow battery energy storage system and method coupled with phase change heat storage, the system comprises a cathode liquid storage tank, an anode liquid storage tank, a high-temperature area phase change cavity, a low-temperature area phase change cavity, an electric pile and a control system, under the control of the control system, electrolyte selectively flows through the high-temperature area phase change cavity and the low-temperature area phase change cavity; by coupling the phase-change material to absorb heat generated by battery operation and solar energy, the system always operates in an optimal temperature range, so that the energy efficiency and the thermal stability of the system are effectively improved, and the thermal management energy consumption of the system is reduced.

The invention discloses a semi-solid-state complex no-tillage dry direct seeding method for crop seeds. The no-tillage dry direct seeding method comprises the following steps: S1, keeping a water layer of 1cm-5cm in a ditch, and paving straws obtained by harvesting preceding crops on a ditch surface; S2, applying a base fertilizer on the ditch surface paved with the straws and cleaning the ditch; S3, seeding the crop seeds on the ditch surface, and mixing the crop seeds with semi-solid-state biomass materials, a compound fertilizer and a biopesticide before seeding before seeding seeds, wherein the mixing mass ratio is that the crop seeds to the semi-solid-state biomass materials to the biopesticide is (1-10) to (70-800) to (1-3), and the moisture content of the semi-solid-state biomass materials is 40%-80%; and S4, after seeding the seeds, keeping the ditch surface at a dry state for 3-7 days. According to the semi-solid-state complex no-tillage dry direct seeding method, tillage and combustion of winter crop straws are not carried out, a whole land of field immersing water is not used for irrigation and the water immerses after the seeding, and the biological benefits are obvious; the working energy consumption is reduced, stubbles are not killed by pesticides, haze is reduced and the irrigation water is reduced.

The utility model relates to a vibrating MBR membrane device and a vibrating MBR membrane sewage treatment system, which are characterized in that the vibrating MBR membrane sewage treatment system comprises an anaerobic tank, an anoxic tank, an aerobic tank, an MBR membrane tank and a clear water tank which are sequentially arranged according to a water flow sequence, the anaerobic tank is provided with a water inlet, the clear water tank is provided with a clear water discharge pipe, and the anoxic tank is provided with a water outlet. A vibrating MBR membrane device is arranged in the MBR membrane tank and comprises a rack, a moving frame which is erected at the top of the rack and slides along the rack, an MBR membrane assembly arranged on the moving frame and a crankshaft driving mechanism for driving the moving frame to do reciprocating linear motion. And the MBR membrane tank is also communicated with the anoxic tank through a steam stripping return pipe, and the anoxic tank is communicated with the anaerobic tank through a steam stripping return pipe. According to the utility model, not only is the sewage treatment effect greatly improved, but also the service life of the MBR membrane is prolonged, and the energy consumption is saved.

The invention relates to the technical field of sludge treatment, and discloses a sludge treatment method based on sludge reduction and ammonia nitrogen recovery, which comprises the following steps: 1) alkali thermal hydrolysis: adding alkali into sludge to adjust the pH value to 9-11, and carrying out thermal hydrolysis reaction; (2) wet oxidation: heating after reaction and discharging, and carrying out wet oxidation reaction; (3) flash evaporation: carrying out heat recovery after reaction discharging, and carrying out flash evaporation to obtain a sludge mixed solution and flash evaporation steam; (4) dewatering: performing heat recovery on the sludge mixed solution, and then dewatering to obtain a sludge cake and filtrate; and (5) ammonia nitrogen air stripping: carrying out ammonia nitrogen air stripping on the filtrate by adopting steam, wherein the filtrate after air stripping can be reused as a carbon source for sewage treatment. According to the method, the oxidative degradation efficiency of the sludge is improved through coupling of alkali thermal hydrolysis and wet oxidation treatment, ammonia nitrogen recovery and sludge reduction are facilitated, and the filtrate has the characteristics of high COD and low total nitrogen and is more suitable for being used as a carbon source.

The invention relates to the technical field of lithium ion battery recovery, in particular to an electrochemical recovery method of a retired lithium iron phosphate battery, which comprises the following steps: preparing an electrode and constructing an electrolytic tank; performing an electrochemical leaching lithium extraction reaction and a circulating experiment; lithium precipitation and anode recovery; and regenerating the electrolyte. According to the method, the retired lithium iron phosphate battery electrode material is recycled by adopting an electrochemical selective leaching lithium extraction technology, the recovery rate of lithium can reach 89% or above, the recovery rate of iron phosphate can reach 90% or above, the regeneration rate of an anode side electrolyte and a cathode side electrolyte can reach 95% or above, and the selectivity of lithium leaching can reach 900 or above.

The continuous flow sludge rapid granulation system based on particle size separation comprises a micro-aerobic tank, an aerobic tank, a precipitation device and a particle size separation device, the micro-aerobic tank is communicated with the aerobic tank, the precipitation device and the particle size separation device are both installed on the upper portion of the aerobic tank, the bottoms of the precipitation device and the particle size separation device are both communicated with the aerobic tank, the micro-aerobic tank is communicated with the precipitation device, and the particle size separation device is communicated with the precipitation device. And the precipitation device is communicated with the particle size separation device. Wherein the particle size separation device realizes screening and enrichment of granular sludge, and a continuous flow aerobic granular sludge system with a high granulation ratio is rapidly formed; the precipitation device can accelerate the formation of the granular sludge, and long-term stable operation of the granular sludge is ensured by coexistence of the precipitation device and the granular sludge; the outer-layer aerobic and inner-layer anoxic / anaerobic microenvironment can be used for synchronously removing phosphorus by nitrification and denitrification. The continuous flow aerobic granular sludge which operates stably for a long time and has good carbon, nitrogen and phosphorus removal performance can be rapidly cultured, in addition, investment is small, compatibility is easy, the occupied area and operation energy consumption are saved, and the method has good application prospects.

The invention discloses an energy-saving air conditioning system and a control method of the energy-saving air conditioning system, and relates to the field of energy-saving air conditioning systems.The energy-saving air conditioning system comprises an outdoor unit shell, a compressor, a condenser, a cooling fan and a drying filter are arranged in the outdoor unit shell, the compressor compresses a refrigerant into a high-temperature and high-pressure gas state, then the refrigerant is fed into the condenser, the cooling fan is started, and the drying filter is started; the condenser is condensed, the refrigerant becomes liquid after being cooled, and the liquid refrigerant is conveyed to the drying filter through a pipeline; in the refrigeration mode, when the temperature monitored by one temperature sensor correspondingly arranged on the outdoor unit shell is lower than the temperature monitored by other temperature sensors, the information is fed back to the controller, the controller controls the driving mechanism to drive the air inlet end to move to the position corresponding to the temperature sensor, and at the moment, the air inlet end is driven by the driving mechanism to move to the position corresponding to the temperature sensor. The air supplied to the cooling fan is low-temperature air near the outdoor unit shell, so that the condensation efficiency of the condenser is improved, and the operation energy consumption of the air conditioning system is reduced.

The invention discloses a method for refining and recovering tail gas of hydrogen chloride. The method comprises the following steps: 1) compressing the tail gas to a high-pressure state through a compressor; (2) introducing the high-pressure gas obtained in the step (1) into a refining tower for separation, obtaining non-condensable gas containing HCl at the tower top, extracting a high-purity hydrogen chloride product from the tower, and obtaining a liquid phase containing organic matters at the tower kettle; and 3) feeding the non-condensable gas at the tower top of the refining tower to a downstream absorption unit, feeding the product hydrogen chloride in the tower to the periphery for supply, decompressing the liquid phase at the tower bottom, and returning to the upstream for recycling. The method can reduce 75% of energy consumption, finally realizes purification of hydrogen chloride gas containing non-condensable gas and organic matter impurities, reduces the amount of waste gas and the amount of byproduct hydrochloric acid, produces high-purity hydrogen chloride products with high added values, realizes efficient circulation of chlorine resources in a park, and has remarkable economic benefits and social benefits.

The utility model relates to the technical field of air treatment, in particular to a flat and urgent combined air treatment unit which comprises an air supply box body, an air inlet end of the air supply box body is communicated with the outside, an air feeder is arranged at an air outlet end of the air supply box body, and an air supply outlet of the air feeder is communicated with the inside; a return fan, a return air valve, an exhaust valve and at least one first filter are arranged in the air return and exhaust box body, the air inlet end of the air return and exhaust box body is communicated with the indoor space, the first filter is detachably arranged between the return fan and the air inlet end of the air return and exhaust box body, and the air return and exhaust box body is provided with a return air inlet and an exhaust outlet; the air return port communicates with the air inlet end of the air supply box through an air return valve, and the air exhaust port communicates with the outside through an air exhaust valve. The ordinary-emergency combined air handling unit can be switched between the ordinary working condition and the emergency working condition, the ordinary comfortable air conditioning function can be achieved, and meanwhile the emergency public health event can be dealt with.

The utility model relates to the technical field of solid waste recycling, and aims to solve the problems that in the prior art, the cost for recycling retired wind power blades through a fixed treatment line is high, performance mismatching exists when wind power blade cutting materials are coarsely crushed through a wind power blade moving treatment system, and the requirement for follow-up crushing equipment is high. The modularized wind power blade on-site crushing system comprises a first crushing module and a second crushing module which can be used independently or jointly. Modular design is adopted, the two crushing modules can be flexibly selected to be used in a combined mode or independently, various feeding requirements are met, the whole-structure crushing performance of the wind power blade is guaranteed, the overall operation energy consumption of blade crushing is reduced, and high efficiency and energy conservation are achieved.

The invention discloses a process for freezing crystallization treatment of desulfurization wastewater by using flue gas waste heat. Comprising a flue gas heat exchanger (1), an ammonia-water absorption heat pump (3), an electric heat pump (15), a first-stage pre-cooling unit (9), a second-stage pre-cooling unit (11), a third-stage pre-cooling unit (13), an ice maker (5), an ice-water separator (7) and an evaporator (10). The flue gas heat exchanger (1) is respectively connected with the ammonia-water absorption heat pump (3) and the electric heat pump (15); the ammonia-water absorption heat pump (3) is respectively connected with the ice maker (5) and the three-stage pre-cooling unit (13); the electric heating pump (15) is connected with the evaporator (10); the first-stage pre-cooling unit (9) is connected with the second-stage pre-cooling unit (11); the second-stage pre-cooling unit (11) is connected with the third-stage pre-cooling unit (13); the third-stage pre-cooling unit (13) is connected with the ice maker (5); the ice maker (5) is connected with the ice-water separator (7); the ice-water separator (7) is respectively connected with the secondary precooling unit (11) and the primary precooling unit (9); and the secondary precooling unit (11) is connected with the evaporator (10). Aiming at waste heat utilization of industrial flue gas, low-temperature waste heat at an inlet of a sintering flue gas chimney is utilized, waste heat flue gas is used as a driving heat source through a heat pump, refrigeration and heat supply are used for a'freezing crystallization and evaporative crystallization 'process of desulfurization waste water, and efficient utilization of industrial low-temperature flue gas waste heat is achieved.

The invention discloses an air treatment system applying ultrasonic humidification and a control method thereof, and the air treatment system comprises a suction electric heater and a blow-out electric heater which are used for heating return air; the evaporator is used for refrigerating and dehumidifying return air; the fan is used for driving return air; the ultrasonic humidifier is used for vaporizing water molecules to generate water vapor to humidify return air; the electric humidifying equipment is used for humidifying the return air through steam generated by electric heating; return air is heated through the suction electric heater and the blow-out electric heater under the driving of the fan, is refrigerated and dehumidified through the evaporator, and is humidified through the electric humidifying equipment or the ultrasonic humidifier, so that supplied air with dry and wet bulb temperature meeting the test requirement is blown into the environment test room. Reasonable utilization of ultrasonic humidification and electric humidification of the air-conditioning laboratory can be achieved, the reliability of the ultrasonic humidification using process is improved, and the operation energy consumption of the air-conditioning laboratory is reduced.

The invention discloses an induction motor parameter on-line identification method and device based on parameter directional solidification. The method comprises the following steps: step S01, acquiring all parameters required to be identified by an induction motor model; step S02, classifying parameters required to be identified into non-key parameters and non-key parameters; step S03, monitoring the operation state of the power grid and the load characteristic parameters of the induction motor in real time, and performing online identification on each parameter in the induction motor model according to the parameters monitored in real time; in the process of carrying out online identification on each parameter in the induction motor model, firstly, non-key parameters in the parameters needing to be identified are assigned, parameter optimization is carried out to identify each key parameter, the identified key parameters are input into the induction motor model, and then each non-key parameter is identified. And repeatedly executing until an identification result meeting a preset requirement is obtained. The method has the advantages of being simple in implementation method, high in identification efficiency and precision, high in real-time performance and robustness and the like.

The invention relates to an epoxy resin pouring type transformer with built-in microcirculation cooling channels and a heat dissipation method of the epoxy resin pouring type transformer, and belongs to the technical field of power transformers. The epoxy resin pouring type transformer comprises an iron core, a low-voltage winding, a high-voltage winding and a heat dissipation shell, the low-voltage winding and the high-voltage winding are completely impregnated and wrapped by an epoxy resin composite material through a vacuum pouring process, an integrated epoxy resin pouring body is formed after curing, and a three-dimensional communicated bionic microcirculation cooling channel network is arranged in the epoxy resin pouring body; the heat dissipation shell is in close contact with the outer surface of the epoxy resin pouring body through the high-heat-conductivity insulating medium. According to the invention, the heat dissipation efficiency can be remarkably improved, and a cooling medium (air) is directly guided to a microscopic area around the winding conductor through a three-dimensional communicated and tree-shaped fractal bionic microcirculation cooling channel network, so that the effective heat exchange area and the heat exchange strength are greatly increased, and internal heat can be accurately and efficiently taken away.

The application relates to the air conditioning technical field and discloses an indoor unit and an air conditioner. The indoor unit comprises a shell, an air duct formed in the shell, an air inlet and an air outlet, and the air duct is communicated between the air inlet and the air outlet; a heat exchanger located in the air duct; a cross-flow fan located in the air duct, the cross-flow fan comprising a motor; wherein a side wall of the air duct is provided with an exhaust passage communicated with the air duct, the shell is further provided with a heat dissipation passage, the heat dissipation passage is located outside the air duct and is communicated between the exhaust passage and the motor, and airflow in the air duct can flow to the motor through the exhaust passage and the heat dissipation passage. The airflow in the air duct has certain kinetic energy and temperature regulation, thereby providing continuous cooling effect for the motor, so that the heat dissipation efficiency of the motor is remarkably improved, and the service life of the motor is prolonged.

The invention relates to the technical field of water treatment, and provides an immersed ultrafiltration concentrated water treatment method and system.The method comprises the steps that reclaimed water treated by a sewage plant is subjected to immersed ultrafiltration treatment, and concentrated water obtained after ultrafiltration is conveyed to a biochemical pool through an overflow tank to be subjected to aeration biochemical treatment; the ultrafiltration concentrated water subjected to ultrafiltration treatment overflows to the biochemical pool by adjusting the height of the flashboard; and the biochemical pool conveys the ultrafiltration concentrated water subjected to aeration biochemical treatment to an MBR membrane pool for solid-liquid separation, and if concentrated water is generated, the concentrated water is continuously conveyed to the biochemical pool for secondary treatment. According to the invention, the flashboard is additionally arranged in the overflow tank, so that the immersed ultrafiltration concentrated water directly enters the biochemical pool for biochemical treatment in an overflow manner without additionally arranging a drainage system, a water storage system and the like, and the operation energy consumption is reduced.

The application belongs to the technical field of power transmission and distribution equipment, and particularly relates to a dry-type transformer cooling device with intelligent wind direction guiding function, which comprises two groups of double-layer racks, an iron core is installed between the two groups of double-layer racks, and a supporting seat is installed on the top of the lower double-layer rack. The application aims at the problems that the traditional cooling air flow cannot effectively enter the deep internal area and the top of the winding, there is a heat dissipation dead zone, and local overheating and low efficiency are caused. The application is designed through a precise air supply unit, specifically, a first air fan of an annular array vertically cools upwardly against the main hole, a second air fan vertically sprays and cools inside the low-voltage winding, and a third air fan penetrates and cools along the transverse groove, which realizes omnidirectional and dead-angle-free cooling from the core inside the winding, the radial gap and the axial height, effectively covers the winding back, the deep internal area and the top area which cannot be reached by the traditional air cooling, and fundamentally prevents the generation of local overheating points.

The utility model discloses an aerogel energy -conserving tunnel furnace, including conveyer belt and split -type tunnel furnace, the utility model discloses a split -type tunnel furnace is set up at conveyer belt top, through having laid aerogel felt on the inner frame outer surface, and aerogel felt has excellent heat -insulating effect, can effectively reduce the heat loss inside inner frame, thereby reduce the heating pipe operation energy consumption, reach the energy -conserving effect to reach the energy -conserving effect, and aerogel felt reduces the thickness of heat -preserving layer under the condition of realizing equivalent heat -insulating effect, greatly save the space, improve the space utilization, in addition, need to maintain the split -type tunnel furnace operation, first remove the screw connection of connecting pillar and mounting hole, can take off the outer frame from the inner frame outside, make aerogel felt expose, the convenient replacement maintenance of heat -preserving layer, greatly reduce the maintenance standby time.

The utility model provides a kind of automatic screening device of parts, including screening device, and screening device includes upper layer cavity, and the bottom surface of upper layer cavity is inclined to be inclined surface, for making pipe fitting under gravity downward roll. The lowest place of upper layer cavity is equipped with discharge chute. The downside of upper layer cavity is equipped with screening chamber, and screening chamber is equipped with length screening groove, and length screening groove is equipped in screening chamber far from one end of discharge chute. The bottom surface of screening chamber is inclined to be inclined surface from discharge chute to length screening groove. The downside of screening chamber is equipped with collection groove, and collection groove is used to collect unqualified pipe fitting. The end far from discharge chute of screening chamber is equipped with qualified product taking area, and qualified product taking area is extended and is equipped in length screening groove downstream for the bottom surface of screening chamber. Qualified product taking area is equipped with horizontal platform of fence. The utility model realizes length screening to pipe fitting by mechanical structure using pipe fitting gravity, saves manpower cost, reduces equipment cost and energy consumption.

This invention relates to the field of condensate recovery technology, specifically a closed-loop condensate recovery device, comprising a tank with a water outlet pipe at the bottom. The tank is divided into three zones—a central steam buffer zone, a lower condensate collection zone, and an upper negative pressure condensation zone—by two horizontal baffles. This closed-loop condensate recovery device eliminates the need for additional power components such as pumps. It relies on the downward pressure difference of the condensate in the negative pressure condensation zone and the negative pressure generated by steam condensation as the drainage driving force. It fully utilizes the system's own energy, eliminating dependence on external power and significantly reducing operating energy consumption. The condensate introduced by the downward pressure drainage pipe creates a downward impact, which, combined with the negative pressure introduced by the negative pressure venting pipe, forms a dual drainage drive, providing stronger power and higher efficiency than traditional single gravity drainage. Simultaneously, it drives the condensate in the pipe to repeatedly flush, comprehensively covering the entire pipe area and thoroughly removing impurities and silt from different sections, offering better anti-clogging performance than unidirectional disturbance.

The utility model discloses a low-energy-consumption rural sewage treatment device which comprises a solar photovoltaic panel, a storage battery, sewage treatment equipment and a sensor assembly, the sewage treatment equipment comprises a first-stage down-flow biological filtration unit, a second-stage up-flow aeration filtration unit and a third-stage down-flow biological filtration unit which are communicated in sequence. By arranging the first-stage down-flow biological filtration unit, the second-stage up-flow aeration filtration unit and the third-stage down-flow biological filtration unit, a stable biological membrane can be formed on a filter material in each biological filtration unit by utilizing the immobilization obligate property of strains in each biological filtration unit so as to adapt to the environmental conditions of each biological filtration unit; compared with the prior art, the sewage treatment method has the advantage that the operation energy consumption is lower. In addition, auxiliary power supply is carried out on the sewage treatment equipment by arranging the solar photovoltaic panel, so that the energy consumption of sewage treatment is further reduced.

The utility model relates to a horizontal screw centrifuge technical field discloses a kind of powder spraying type drying horizontal screw centrifuges, to solve the defect of overcoming the high moisture content of solid phase material of existing horizontal screw centrifuge easy to stick. The utility model is under the centrifugal field by superstrong instantaneous mixing and penetration: in the centrifugal field of up to hundreds even thousands of times gravity acceleration, dry powder particles spouted from powder spout can be "pressed into" the filter cake being extruded by screw conveyor dehydration with very high relative speed, this forced mixing under high G force, far more than ordinary mixer can compare, it can make dry powder instantaneously, uniformly penetrate into the micro-pore structure of filter cake, realize molecular level contact, greatly improve the reaction efficiency and hygroscopic efficiency of drying agent (such as quicklime, fly ash etc.), make the filter cake discharged solid rate significantly improve, and texture loose, uniform.