6results about How to "Reduce energy input" patented technology

This utility model relates to the field of chemical engineering technology and discloses a coil-type cold explosion-proof sulfur pulverizing device, including a frame. A pretreatment chamber is fixedly connected to the top of the frame, and a pulverizing chamber is installed on the right side of the pretreatment chamber. A connecting pipe is installed between the pretreatment chamber and the pulverizing chamber. A second motor is installed on the top of the connecting pipe, and a stirring rod is fixedly connected to the output end of the second motor. A feed inlet is opened on the top of the pretreatment chamber, and a conveying pipe is fixedly connected to the side of the pulverizing chamber away from the connecting pipe. A discharge outlet is installed at the end of the conveying pipe away from the pulverizing chamber. In this utility model, by introducing a pretreatment step, the sulfur raw material is initially crushed before entering the pulverizing chamber, which significantly reduces the energy input required for the pulverizing equipment. The stirring, vibration, and other processes in the pretreatment chamber can decompose agglomerated materials, improve the embrittlement effect of the raw material, and reduce the energy consumption of the pulverizing process.

The utility model discloses beverage bottle preform injection molding equipment, which belongs to the technical field of beverage bottle production and comprises an equipment body, a mold cavity and a charging barrel, the mold cavity is arranged on the equipment body, and the charging barrel is used for melting and conveying materials; the device further comprises a preheating cylinder; a preheating mechanism is arranged in the preheating cylinder and is used for preheating plastic particles in the preheating cylinder, so that the plastic particles enter the charging barrel after being preheated; the preheating mechanism comprises a first preheating plate and a second preheating plate, the first preheating plate and the second preheating plate are both located in the preheating cylinder, a first heating piece is installed on the first preheating plate, and a second heating piece is installed on the second preheating plate. According to the utility model, the problems of efficiency and quality caused by the fact that low-temperature materials directly enter the charging barrel in the prior art are solved.

The present application belongs to hydrogen energy technical field, and particularly relates to a high-efficiency flexible medium-low temperature fuel cell waste heat refrigeration system.The technical scheme is as follows: a high-efficiency flexible medium-low temperature fuel cell waste heat refrigeration system, comprising a CO2 transcritical heat pump system, a lithium bromide absorption refrigeration system and a fuel cell power generation system, hot water generated by the CO2 transcritical heat pump system and hot water generated by the fuel cell power generation system are mixed and supplied to the lithium bromide absorption refrigeration system, and hot water generated by the lithium bromide absorption refrigeration system is sent back to the fuel cell power generation system.The present application provides a high-efficiency flexible medium-low temperature fuel cell waste heat refrigeration system, which fully utilizes fuel cell power and utilizes low-grade heat, can greatly improve the temperature range of the fuel cell, and improves the overall energy utilization efficiency.

The invention relates to the field of electro-catalytic materials, and mainly discloses a metal-metal catalyst for preparing nitrite through electro-catalytic ammoxidation and a preparation method and application of the metal-metal catalyst, and the catalyst is composed of molybdenum (Mo), nickel (Ni) and copper (Cu) in a metallic state and does not contain an oxide or hydroxide phase. The metal-metal catalyst provided by the invention shows excellent comprehensive performance in electrocatalytic ammoxidation reaction, the catalyst shows extremely low reaction starting potential in the aspect of catalytic activity, and the starting potential is only 1.36 V relative to a reversible hydrogen electrode in electrolyte, so that the energy input required by the reaction is remarkably reduced, and the energy consumption is reduced. Ammonia oxidation can be tested under milder conditions, the safety and reliability of ammonia oxidation are directly improved, efficient ammonia utilization rate and nitrite selectivity are realized, side reaction is effectively inhibited, and the catalyst is particularly remarkable in long-term operation stability.

The invention belongs to the technical field of foundation treatment, and discloses a dynamic frequency tracking-based alluvial silt foundation adaptive resonance compaction method. The problem of resonance frequency drift caused by rigidity time-varying characteristics in the resonance compacting process of the Yellow River downstream alluvial silt foundation is solved. Comprising the following steps: S1, equipment in-place and initial penetration; s2, real-time response monitoring is carried out; s3, analyzing bottom vibration retention and instantaneous frequency; s4, performing dynamic frequency tracking and self-adaptive resonance in the lifting process of the vibration rod; s5, the vibration rod is lifted to the ground, and construction of a single point position is completed; and S6, the resonance compaction equipment is moved to the next construction point position, and the steps S1 to S5 are repeated till foundation treatment of all the areas is completed. Through real-time analysis of the instantaneous inherent frequency of the soil body and dynamic tracking and matching, the problem of resonant frequency drift caused by rigidity time-varying characteristics of the Yellow River downstream alluvial silt is fundamentally solved.

The invention relates to the technical field of wind power generation, and discloses a mechanical variable-pitch protection system and a wind turbine generator. The mechanical variable-pitch protection system comprises an energy storage device, a transmission device, a transmission shaft, a main shaft and blades which are connected in sequence; the variable pitch driving mechanism is connected with the energy storage device through the transmission device and connected with the blades. The mechanical variable-pitch protection system has a first state that blades rotate to drive a main shaft to rotate, a transmission shaft rotates, a transmission device acts, and kinetic energy is stored in an energy storage device; and in the second state, when the control module receives a shutdown signal and a failure signal of the electrically-driven variable pitch system, the energy storage device releases energy, and the blades are driven to rotate to the 90-degree feathering position through the transmission device and the variable pitch driving mechanism. According to the mechanical variable-pitch protection system, when the wind turbine generator set is shut down emergently and the electric drive variable-pitch system fails, the blades are driven to rotate to the 90-degree feathering position, energy input is reduced, speed reduction of the wind turbine generator set is achieved, and overspeed and accidents are prevented.