9results about How to "Reduce temperature peaks" patented technology

The invention discloses ship lock large-volume air-entraining concrete and a pouring vibration exhaust method, and belongs to the technical field of concrete.The ship lock large-volume air-entraining concrete is prepared from 130-160 kg / m < 3 > of cement, 50-70 kg / m < 3 > of fly ash, 50-70 kg / m < 3 > of mineral powder, 600-750 kg / m < 3 > of sand, 1300-1500 kg / m < 3 > of gravel, 3-5 kg / m < 3 > of a water reducing agent, 90-130 kg / m < 3 > of water and 3-4 kg / m < 3 > of an air-entraining anti-cracking agent according to the mixing proportion; a nano-scale super absorbent material is adopted as an air-entraining anti-cracking agent, internal humidity is maintained and a temperature peak value is reduced through water absorption and slow water release, and corresponding nano micropores are reserved in a microstructure through water release and polymer shrinkage, so that the effects of enhancing mechanical properties and resisting cracking after air entraining are achieved.

This invention proposes a structure, assembly method, and a laminated pole synchronous motor for improving the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. It belongs to the field of laminated pole synchronous motors. The invention solves the problem of how to effectively improve the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. The heat dissipation structure consists of multi-layered fins welded to the damping strip of the laminated pole synchronous motor. A graphene coating is sprayed onto the fins and damping strip. The damping strip has a hollow structure filled with phase change material. One end of the damping strip is fixed to a damping ring, and the other end is connected to the pole core. Heat dissipation fins are provided at the bottom of the damping ring. This invention employs a composite heat dissipation system of "internal phase change flow heat transfer + fins + damping ring heat dissipation fins": internally, the phase change cycle of the phase change material promotes uniform heat distribution; externally, the heat dissipation fins on the surface of the damping strip and the integrated heat dissipation fins of the damping ring form a three-dimensional heat dissipation network, significantly accelerating the transfer of heat from the damping winding to the external environment.

The application discloses a modular integrated primary-secondary fusion ring network box and relates to the technical field of smart grids. The modular integrated primary-secondary fusion ring network box comprises a main box body, an auxiliary mechanism, a U-shaped plate and a storage tank. A plurality of strip-shaped partitions are fixed in the storage tank, and the shape of the strip-shaped partitions is wavy. The same end surface of the strip-shaped partitions is in contact with the inner wall of the U-shaped plate. The shape of the inner wall bottom of the storage tank is matched with the shape of the strip-shaped partitions. The U-shaped plate is additionally arranged on the shell of the main box body. A plurality of phase change strips are arranged in the storage tank. The auxiliary mechanism is arranged. The phase change strips can absorb the heat transferred by the U-shaped plate and store the heat, so that the temperature peak value in the shell of the main box body is reduced, the heat in the main box body can be discharged in time by the ring network box standard cooling fan, and the service life of the power electronic components in the primary-secondary fusion ring network box is prolonged.

The invention provides a battery pack anti-aging fast charging control method and device, equipment and a medium. The method comprises the following steps: establishing a multi-physical field coupling system model of a lithium ion battery module; the multi-physics field coupling system model comprises an electrochemical equivalent circuit sub-model, a total parameter thermal network sub-model and a battery module aging sub-model; with reduction of parasitic energy consumption of the system as a target, a hybrid heat management strategy in which an active liquid cooling pump and a passive phase change material cooperate is constructed; and determining a current calculation strategy according to available calculation resources of the current controller, if the calculation power is low, selecting a heuristic strategy to determine the charging current of the future step, and if the calculation power is high, selecting an MPC strategy to determine the optimal current sequence of the future step. According to the control method, the electric-thermal-aging multi-physical field model can be coupled in real time, the advantages of active liquid cooling and passive phase change materials are organically combined, and dynamic balance among the charging speed, thermal safety and service life attenuation is achieved through an efficient algorithm.

The application relates to a smart park energy operation and maintenance management method based on big data applied to the technical field of energy operation and maintenance management, wherein through the design of a fault prediction unit and a power consumption redistribution unit, power consumption equipment can be reselected at least twice, so that the power supply mode of the power consumption equipment is maintained in a safe and stable state, compared with the prior art, the occurrence of unplanned power outage is greatly reduced, and the economic loss caused by the unplanned power outage to the production activities of the smart park is effectively reduced; in cooperation with the setting of a contact precooling unit, the switch contact of a static switch (STS) can be pre-cooled in advance before power supply switching, the temperature peak value of the switch contact after switching can be effectively reduced in the vertical direction, the cooling time of the switch contact after switching can be reduced in the horizontal direction, the stable switching of the static switch (STS) to the power supply mode is effectively maintained, the smart power supply in the park is effectively maintained, and the stable operation of the power consumption equipment in the park is ensured.

The utility model discloses a kind of power module, electronic equipment and vehicle, the power module includes: power device body;Phase change store, in the first direction of the power module, the phase change store is located in the side of the power device body;The storage space of the phase change store is isolated with the power device body arrangement, and the phase change store is used to accommodate phase change medium.According to the power module of the utility model, phase change store can absorb and store a large amount of heat in short time, heat conduction capacity is higher, improves the short-time overcurrent capacity of power module, reduces temperature peak value, reduces temperature fluctuation, and prolongs the service life of power module.

This utility model relates to a temperature-controlled tea processing and roasting machine, including a temperature-controlled chamber, of which two chambers are provided; it also includes a ventilation chamber disposed between the two temperature-controlled chambers, with a ventilation component inside the ventilation chamber, and a sliding component inside the temperature-controlled chamber. A roasting component is mounted on the sliding component, which is used to move the roasting component out of the machine. The ventilation component is used to transfer excess heat from the temperature-controlled chamber currently roasting to the other temperature-controlled chamber for preheating the tea. A heat recovery pipe is installed on the left side of the temperature-controlled chamber to recover excess heat from the preheating temperature-controlled chamber. A heat supply pipe is connected to the rear end of the temperature-controlled chamber, and a diverter plate is connected to one end of the heat supply pipe extending into the temperature-controlled chamber. This new model, through the symmetrical layout of the two temperature-controlled chambers, allows excess heat generated during high-temperature roasting in one chamber to be transported to the other chamber via the ventilation component for preheating the tea, reducing subsequent energy consumption, while simultaneously controlling the discharge of heat to stabilize the temperature.

The invention relates to a preparation method of a functional concrete admixture with high impermeability and crack resistance. According to the technical scheme, a proper amount of deionized water and a prepared GO-PCs solution are sequentially added into a reaction container, stirring is started, then a certain amount of organic silicon modified acrylic emulsion, vinyl acetate-acrylic emulsion, polyvinyl alcohol, sodium gluconate, glycerol, xanthan gum and a defoaming agent are sequentially added, and the time interval of adding each raw material is 2 minutes; after all the materials are added, continuously stirring for 30 minutes, and then adding the air entraining agent; and continuously stirring for 5 minutes to finish the preparation of the product. The anti-permeability concrete has the beneficial effects that the anti-permeability performance of the concrete is greatly improved from traditional P6-P12 to P20 or above, and the limit anti-permeability performance can exceed P40; product application is simple, material putting is simpler and more convenient, and production and construction are more facilitated; compared with a traditional product, the construction performance, the mechanical performance and the durability of the concrete are all improved to different degrees, and the anti-cracking capacity is obviously improved.

The invention relates to hydration heat inhibition particles for concrete and a preparation method thereof. The hydration heat inhibition particles are prepared by wrapping 65-75 wt% of phase change material particles with 25-35 wt% of shell layer composite material powder; the phase-change material particles are composed of 20-40 wt% of a low-temperature phase-change material and 60-80 wt% of a high-temperature phase-change material, the low-temperature phase-change material and the high-temperature phase-change material are subjected to high-temperature melting and uniform mixing, ice water is dripped into the mixture through a dripping nozzle for cooling granulation to prepare the phase-change material particles, then the phase-change material particles are placed in a disc granulator, and the shell composite material is added for granulation. The hydration heat inhibition particle for concrete prepared by the invention is uniform in shell thickness, high in structural stability, high in strength, good in sealing property, excellent in sphericity degree and good in concrete compatibility, and can tolerate 100 times of heat cycles at 20-80 DEG C without cracks; after being doped into concrete, the concrete admixture state can be improved, the temperature gradient in the concrete hydration period is remarkably reduced, and the cracking risk is remarkably reduced.