17 results about "Core energy" patented technology

The invention discloses a thermal power generating unit load distribution optimization method and system, and relates to the technical field of load optimization distribution, and the method comprises the steps: quantifying the contribution degree of the position of each operation state monitoring device to a load prediction error based on operation influence data, and screening out a representative monitoring point set covering a unit core energy consumption node; constructing a multi-scale influence analysis model, identifying the change influence degree of the operation state data of each representative monitoring point on the load data of the thermal power generating unit, and generating a load distribution initial scheme; running state data of representative monitoring points are monitored in real time, a multi-target optimization mechanism is introduced, the weight value of each target is dynamically adjusted, and the load distribution of the thermal power generating unit is optimized in real time in combination with a load distribution initial scheme. Accurate dynamic load distribution based on multi-scale analysis and multi-objective optimization is realized, and the comprehensive benefit of a unit is improved.

The present invention relates to a low-cost high-ductility fatigue-resistant core energy-dissipation structure and an anti-buckling energy-dissipation support. The core energy dissipation structure comprises at least a first steel plate and a second steel plate. The second steel plate must be and can only be adjacent to and welded to the first steel plate. The microstructure of each of two types of steel plate material used is mainly a ferrite structure; the yield strength and plastic deformation flow stress of the first steel plate material are both higher than that of the second steel plate material. In a plastic deformation strengthening stage, when true strain is not greater than 0.12, the deformation work hardening rate of the first steel plate material is not less than the deformation work hardening rate of the second steel plate material; and under fatigue deformation conditions of a strain amplitude of 1%, a loading frequency of 0.1-0.2 Hz, and a strain ratio of -1, the room-temperature fatigue life of each of the two types of steel plate material is not less than 500 cycles. The ratio of the allowable limit of displacement to the calculated yield displacement of the buckling-resistant energy-dissipation support of the present invention is not less than 7, and the allowable limit of displacement is not less than 1 / 80 of the length of the buckling-resistant energy-dissipation support.

This invention belongs to the field of power system control technology. It discloses a system and method for the linkage between sub-core load adaptation and main core power replenishment in a dual-core fused power supply. The system includes: calculating the main core's instantaneous power replenishment margin based on the current state of charge of the main core management unit and the real-time available output capacity of the main core converter; sending a low-voltage detection pulse sequence to the sub-cores and simultaneously acquiring the returned damping attenuation waveform and instantaneous leakage current value; determining a dynamic access threshold, comparing the current real-time load power with the dynamic access threshold, and generating a continuous load adaptation tag and a sub-core locking identifier; establishing a sub-core priority power replenishment sequence, and immediately tightening the access conditions of the sub-core priority power replenishment sequence when the instantaneous power replenishment margin is lower than a preset warning value; activating a fast power replenishment channel for sub-cores that meet the preset power replenishment triggering conditions, while simultaneously performing dynamic power backtracking on unlocked sub-cores until the main core's instantaneous power replenishment margin recovers to or above the safety threshold; significantly improving energy efficiency.

The invention provides a column base connecting joint with replaceable energy consumption parts and a construction method, and relates to the technical field of column base connecting joints. The column foot connecting joint comprises a bearing platform, a double-steel-pipe concrete column, a connecting section and an energy dissipation piece. The double-steel-pipe concrete column comprises an outer steel pipe, an inner steel pipe and a connecting assembly. The connecting assembly comprises a first flange, a plurality of upper connecting steel bars and a plurality of energy consumption bars. A bearing platform connecting piece is arranged on the bearing platform and comprises a second flange and a steel pipe shear key; the lower connecting steel bars are arranged on the second flange and connected with the upper connecting steel bars and the energy consumption bars; the connecting section comprises a high-strength steel plate, an inner restraint plate and a plurality of pairs of steel reinforcements; the energy consumption piece is connected to the second protruding section and the high-strength steel plate. The arc-shaped energy dissipation piece is adopted as a core energy dissipation element, efficient energy dissipation can be achieved through plastic deformation in an earthquake, quick replacement can be achieved only by disassembling bolts after damage, the maintenance cost is remarkably reduced, the maintenance time is remarkably shortened, damage controllability is achieved, and parts can be replaced.

The invention discloses a preparation method of a low-temperature-resistant and high-voltage electrolyte in the technical field of high-performance electrolyte of a secondary battery, which is characterized in that the electrolyte with low melting point, low viscosity and wide electrochemical stability window is prepared by creating a pressure environment, taking halogenated hydrocarbon, dimethyl ether and lithium salt as raw materials and increasing the number of freely movable Li < + > of the electrolyte; the process is stable, the safety is high, the melting point of the prepared electrolyte is lower than-60 DEG C, the electrochemical stability window is 4.5-4.8 V, the electrolyte is suitable for low-temperature and high-voltage lithium ion batteries, the core energy storage requirements in the fields of consumer electronics, new energy automobiles, energy storage equipment and the like can be met, the electrolyte is suitable for low-temperature scenes such as cold regions and high-altitude operation, and the electrolyte is suitable for industrial production and has wide application prospects. And a new thought is provided for the battery to adapt to requirements in an extreme environment.

The invention discloses a method for generating nuclear energy by using pressure, which is called temperature nuclear energy, and comprises the following steps: S1, generating heat by friction, namely, from a macroscopic view, enabling relative movement of two objects to be relative displacement of two contact surfaces; from microscopic particles, the relative displacement of the two particle clusters occurs, the contact surface of the particle clusters is uneven, and the friction is the essence of mutual collision between atoms of the convex parts of the contact surface and the collision is the mutual pressure generated by the particles at the contact part, so that the friction is considered to be the friction between the particles at the contact part. The essence of friction is the pressure generated by mutual collision of particles between the convex parts of the two contact surfaces in relative movement, just like the principle of a proton collision machine and the effect of splitting generated by proton collision, the invention completes the imagination of a key stage of cold polymerization, and knows that the material is a complete universe cycle from radiation to polymerization, so that the method has the advantages of being simple in structure, convenient to operate and the like. Because the starting point is cold polymerization of substances, the method is substantially different from the mainstream of thermal polymerization in the current science.

This invention provides a composite protective structure with gradient impedance and directional energy dissipation, relating to the field of protective structures. Along the impact incident direction, it comprises a high-impedance ceramic panel layer (1), a gradient impedance transition layer (2), a core energy-absorbing layer (3), and a high-toughness constraint backplate layer (4). The gradient impedance transition layer (2) is composed of multiple continuous gradient layers. The core energy-absorbing layer (3) employs a periodic array of double-arrow honeycomb unit cells with a negative Poisson's ratio effect. Each double-arrow honeycomb unit cell includes a double-arrow rod (31) and two diagonal rods (32). This structure achieves "non-reflective" transport of stress waves through the gradient impedance transition layer and achieves "directional energy dissipation" and "ordered buckling" through the negative Poisson's ratio effect of the core energy-absorbing layer. Furthermore, the layers are tightly bonded together, effectively solving problems such as insufficient energy absorption, energy concentration, and impedance mismatch in existing protective structures.

The invention provides a daughter core moving state and mother core energy complementation linkage system of a dual-core fusion maintenance power supply, and relates to the technical field of intelligent power grid power supply control. State sensing data and prediction data of a daughter core unit are input into a central bus coordination controller for fusion analysis; according to the method, multiple energy routing strategies and multiple working modes of the bidirectional DC-DC converter are utilized to establish accurate mapping, an optimal strategy is automatically matched, and a system control instruction set is generated to switch the working modes of the bidirectional DC-DC converter, so that energy can flow accurately and efficiently in a system as required; meanwhile, an insulation detection circuit is deeply integrated in a sub-core output port, an active safety protection closed loop for real-time monitoring, judgment, isolation and reconstruction is established, global optimization and dynamic self-adaption of energy management are achieved, the overall energy efficiency, flexibility and reliability of the system are improved, and optimal balance between high-capacity energy storage and flexible and portable application is achieved.

The utility model provides a novel plane key tooth type slit asymmetric damper which comprises a lock type steel plate serving as a core energy consumption unit and a sleeve plate assembly serving as a restraining unit, a key tooth type slit asymmetric energy consumption part is formed in the middle of the lock type steel plate, and connecting parts are arranged on the two end sides of the lock type steel plate and used for being connected with building nodes. The energy dissipation part is installed in the sleeve plate assembly in a limited mode and restrained, and external energy is consumed through good ductility and plastic deformation of the energy dissipation part when the outer side end of the lock type steel plate is pressed or pulled. The overall disassembly is convenient, the consumed cost is low, the structural strength is high after installation, high-frequency external force can be borne, and the continuity is longer.

The invention discloses a hydraulic-spring composite energy-absorbing shed frame system for an under-mine rock burst support, belongs to the technical field of mine support, and solves the problems of fixed energy-absorbing parameters, low mounting efficiency, poor environmental tolerance and insufficient combined support collaboration of a traditional support. The system comprises a main body supporting structure, a core energy absorption module, a pressure-bearing force transmission structure and a filling layer, and can be combined with a constant-resistance large-deformation anchor rod / anchor cable for use. The main body supporting structure comprises a 36 U-shaped steel arched shed frame and a quick-release yielding clamping cable, so that quick mounting and controllable yielding are realized; the core energy absorption module is composed of a detachable laminated belleville spring set, a replaceable valve element type hydraulic damper and a protective shell, and energy absorption parameters are adjustable. And a support cooperative control unit is further arranged to realize synchronous yielding reset. And the energy absorption of the system is adaptive to 100-500kJ, the installation efficiency is improved by 500%, the service life is prolonged to 2.5 years, and the system is suitable for supporting the multi-grade under-mine rock burst roadway.

The present invention discloses a buckling restraint support device, comprising an outer restraint tube, an inner core energy-absorbing tube, an inner restraint tube and an end plate, wherein the end plate is vertically fixed at both ends of the inner core energy-absorbing tube; the outer restraint tube is concentrically sleeved on the outside of the inner core energy-absorbing tube, and the inner restraint tube is concentrically sleeved inside the inner core energy-absorbing tube; wherein the outer restraint tube and the inner restraint tube are both circular GFRP tubes, and the inner core energy-absorbing tube is a circular aluminum alloy tube; in the present invention, the inner restraint tube and the outer restraint tube are respectively sleeved on the inside and outside of the inner core energy-absorbing tube, the inner core energy-absorbing tube is a circular aluminum alloy tube, and the outer restraint tube and the inner restraint tube are both circular GFRP tubes; aluminum alloy is used as the core material, and glass fiber composite material is used to construct the external restraint, fully exploring the performance advantages of the two materials, making it light and efficient, green and environmentally friendly, cold-resistant and corrosion-resistant, and alleviating the disadvantages of traditional buckling restraint supports such as heavy weight, frequent wet operations and high subsequent maintenance costs.

The invention belongs to the technical field of building energy dissipation and shock absorption, and discloses a double-order buckling restrained brace device which comprises an inner core energy dissipation assembly, an outer restraining assembly and an end connecting assembly, the inner core energy dissipation assembly comprises a first core material and a second core material, and the first core material is of a cross-shaped rod-shaped structure with the cross section equal in transverse and vertical direction; the second core material is of a tubular structure with a circular section and sleeved outside the first core material, the distance from the edge of the first core material to the inner wall of the second core material is 4-10mm, the first core material is made of high-yield-point steel, and the second core material is made of low-yield-point steel; the outer restraining assembly comprises a restraining steel pipe which is arranged outside the second core material in a concentric and sleeving mode, and the space between the restraining steel pipe and the second core material is filled with filler. The end connecting assembly is used for being connected with a main body structure. A double-layer nested design is adopted, and a double-step yield mechanism is constructed, so that the supporting device becomes a graded fuse of a building structure, and the anti-seismic safety of the building structure under earthquakes with different intensities is improved.

The invention belongs to the field of building parts, and particularly relates to a built-in U-shaped embedded shear metal damper used for energy dissipation and shock absorption between adjacent components. According to the technical scheme, the energy dissipation structure comprises two core energy dissipation plates and two U-shaped embedded parts, each core energy dissipation plate is of an I-shaped structure formed by a web plate and flange plates fixedly connected to the two ends of the web plate, and the web plate is provided with two round holes; two rectangular through holes are formed in the vertical center line of the bottom surface of the U-shaped embedded part; the two U-shaped embedded parts are oppositely arranged, the two ends of the web plate are inserted into rectangular through holes of the two U-shaped embedded parts respectively, the flange plates are fixedly connected to the two ends of the web plate respectively, and the two core energy consumption plates lock the two U-shaped embedded parts. The two U-shaped embedded parts are embedded in the two adjacent components respectively, and the core energy consumption plate is located at a crack between the two components. The shear energy dissipation can be borne under the action of earthquakes and wind vibration, the energy dissipation and shock absorption capacity of a building is improved, and the epicenter damage to building components is reduced.

The invention belongs to the technical field of energy management, and provides an energy consumption digital management method and system based on an energy management platform. The method comprises the steps of comparing real-time energy consumption data with a dynamic expected reference value to obtain a theoretical static potential value when it is judged that an optimization management condition is met based on each piece of real-time energy consumption data, and introducing confidence interval judgment to correct the theoretical static potential value to obtain an optimization potential value with statistical significance; the optimization contribution value of each energy consumption unit is obtained through analysis according to the optimization potential value, the association topological relation and a preset energy consumption management target; and according to the optimization potential value and the optimization contribution value, screening to obtain a group of energy consumption units, and only processing and displaying the energy consumption data of the group of energy consumption units. According to the method, the existing system data piling presentation mode is changed, so that the core energy-saving opportunity can be quickly positioned from mass data, limited management resources are concentrated in a link which contributes to the global energy efficiency target to the greatest extent, and secondary optimization decision and resource dispersion are effectively avoided.

The utility model relates to a cylindrical battery cell and a battery, and relates to the technical field of batteries. The cylindrical battery cell provided by the utility model comprises a cover body and a shell, the shell comprises a barrel part and a top cover part, the top cover part is arranged at the top of the barrel part, the cover body is arranged at the bottom of the barrel part, reinforcing ribs cover the inner wall of the barrel part from the top to the bottom, and the reinforcing ribs extend inwards along the inner wall of the shell. Compared with a traditional smooth straight-wall shell, the shell has the advantages that the reinforcing ribs are arranged on the inner wall of the barrel part of the shell, so that the wall thickness of the shell can be reduced, the overall strength of the shell is kept unchanged, and the corresponding protection effect is achieved; meanwhile, the weight of the shell arranged in this way is reduced, the risk that the battery cell loses efficacy due to the fact that the wall thickness of the shell is reduced and the battery cell is affected by internal and external environments is avoided, and the improvement of the energy density of the battery cell is facilitated.

The application provides a multi-stage buffer energy consumption protection device and design method for preventing landslides and rockfalls. The protection device is provided with a fixed base, a buffer pad layer, a core energy consumption unit and an impact-resistant panel from bottom to top. The buffer pad layer is laid on the fixed base, the core energy consumption unit is arranged and fixed on the top end of the buffer pad layer, and the impact-resistant panel is covered and fixed on the top of the core energy consumption unit. The core energy consumption unit comprises a bearing top plate, a bearing bottom plate and a plurality of multi-stage energy consumption components arranged and fixed between the bearing top plate and the bearing bottom plate. The bearing bottom plate and the bearing top plate are respectively fixed with the buffer pad layer and the impact-resistant panel. The application realizes gradient dissipation of impact energy through the hierarchical and cooperative structure of the impact-resistant panel-core energy consumption unit-buffer pad layer, efficiently absorbs and disperses the impact energy of rockfall, reduces stress concentration, avoids brittle failure of the dam body, improves the impact resistance and energy consumption efficiency of the dam surface to large stone impact, prolongs the safe service period of the structure, and has excellent reusability.

This invention discloses an SMA-Omega damper for energy dissipation and vibration reduction. The damper employs a continuous and symmetrical Ω-shaped geometric topology, consisting of three arc-shaped segments and two vertical transition segments. The Ω-shaped geometric topology is the main energy-dissipating component and can be optimized according to design requirements. The Ω-shaped geometric topology is symmetrically distributed from the bottom center outwards, and sequentially includes: a core energy-dissipating segment: a semi-circular arc structure located at the bottom center; a transition segment: a vertical straight segment connecting the two ends of the core energy-dissipating segment; a turning arc segment: a quarter-circular arc structure continuing from the end of the transition segment; and an end anchoring segment: a straight segment extending horizontally outwards from the end of the turning arc segment for fixing to the external main structure. The damper is made of a superelastic shape memory alloy. This invention achieves uniform stress distribution through the Ω-shaped curve, avoiding localized stress concentration; simultaneously, combined with the self-resetting characteristics of SMA, it significantly reduces post-earthquake residual displacement.