38results about How to "Solve loss" patented technology

This invention discloses a portable low-temperature plasma device based on a Laval nozzle structure and its application, belonging to the field of plasma technology application technology. Specifically, it includes (1) the construction of the device; and (2) the use of the device for fungal eradication treatment and transdermal drug delivery enhancement treatment. The beneficial effects achieved by this invention are as follows: This invention is the first to apply the Laval nozzle structure to a portable low-temperature plasma device. The results show that the device can effectively improve the plasma jet performance and active particle content, significantly improve the treatment effect of fungal infections of the skin and nails and the transdermal drug penetration efficiency, while solving the problems of large size, reliance on external power supply, and complex operation of traditional plasma devices. Therefore, using this invention for the treatment of fungal infections of the skin and nails and for enhanced transdermal drug delivery has advantages such as ease of operation, high safety, non-invasiveness, and high efficiency, and thus has potential application prospects in the field of skin disease treatment and transdermal drug delivery.

This utility model discloses a wine storage tank for wine production, comprising: a stainless steel seal, including a fixed layer plate fixedly connected to the inner wall of the storage tank, a limiting shaft fixedly sleeved inside the fixed layer plate, a sealing cover plate movably sleeved on the outer wall of the limiting shaft, an internal gear ring fixedly connected to the top of the sealing cover plate, and a gear meshing on the inner wall of the internal gear ring. By setting a double-layer structure of a stainless steel top cover and a clay top cover at the top of the storage tank, the stainless steel top cover provides strong sealing, blocking the exchange of gases between the inside and outside when absolute sealing is required, thus preventing oxidation of the wine and external contamination. The clay top cover, relying on the microporous characteristics of its material, allows for natural ventilation when the wine needs to be breathable for aging, without the need to fully open the lid. Simultaneously, the double-layer design allows for flexible switching between usage scenarios, and individual opening is convenient and labor-saving for cleaning and maintenance, effectively solving the problems of traditional wine storage tanks where sealing and ventilation requirements are difficult to balance, and where opening the lid easily leads to wine loss and contamination.

The invention relates to the technical field of permanent magnet motors, in particular to a double-permanent-magnet speed regulation all-in-one machine and an operation method. A double-permanent-magnet speed regulation all-in-one machine comprises a machine base provided with a containing space; the motor winding stator comprises a secondary winding and a working winding, the secondary winding is suitable for being connected with a four-quadrant frequency converter line, and the working winding is connected with a power grid line through a first phase detection module and a second phase detection module; the permanent magnet planetary rotor set comprises an outer permanent magnet set, a middle connecting sleeve and an inner permanent magnet set which are sequentially arranged in a sleeving mode from outside to inside, the motor winding stator is arranged on the periphery of the outer permanent magnet set in a sleeving mode, and the outer permanent magnet set and the motor winding stator form an outer permanent magnet motor set; the inner winding rotor, the inner permanent magnet group and the inner winding rotor form an inner permanent magnet generator set; and an output shaft. The invention provides a double-permanent-magnet speed regulation all-in-one machine and an operation method, and aims to solve the problem of loss of a transformer due to the fact that a power generator directly uploads energy to a power grid after generating power and then the power grid drives a motor to rotate.

The utility model discloses a filtering device for printing ink manufacturing, and belongs to the technical field of filtering devices. The device comprises a filter box and a scraping mechanism, a driving part is arranged in the middle of the bottom of the filter box, a protective shell is arranged outside the driving part, the scraping mechanism comprises a mounting sleeve, the mounting sleeve is arranged at the output end of the driving part, two symmetrical connecting rods are arranged outside the mounting sleeve, one end of each connecting rod is provided with a third scraping strip, and the other end of each connecting rod is provided with a second scraping strip. A fourth scraping strip is arranged at the bottom end of the third scraping strip, and first scraping strips are arranged at the bottoms of the two connecting rods correspondingly. The outer wall of the protective shell and the inner wall of the filter box are synchronously scraped through the first scraping strip and the third scraping strip respectively, printing ink residues are minimized, raw material waste is reduced, the second scraping strip and the fourth scraping strip which are obliquely arranged are tightly attached to the bottom face of the filter box, dead corner residues which are difficult to treat through a traditional device are effectively removed, and the use effect is good. The problem that raw materials are consumed due to the fact that filtered ink is easily attached to the inner wall and the bottom of equipment and is difficult to scrape thoroughly is solved.

This invention discloses a high-performance meta-aramid / mica composite insulating paper and its preparation method. The paper is formed by wet papermaking and hot pressing of a mixed slurry composed of meta-aramid chopped fibers, meta-aramid precipitated fibers, and mica flakes. The composite insulating paper has a thermal decomposition temperature ≥425℃, tensile strength ≥52N / mm, tear strength ≥2.2N / mm, and voltage breakdown strength ≥13.8kV / mm. The mass ratio of chopped fibers to precipitated fibers is (50~80):(50~20). The amount of mica flakes added is 5wt%~10wt% of the total mass of the two aramid fibers. The hot pressing adopts a segmented hot pressing process of "low-temperature pre-pressing - medium-temperature strengthening - high-temperature setting". By controlling the key parameters of the precipitated fibers and optimizing the ratio of chopped fibers to precipitated fibers and the proportion of mica flakes added, the paper is prepared through processes such as raw material pretreatment, graded mixing and dissociation, wet papermaking, and segmented hot pressing. Advantages: Through multi-parameter coordinated control and process optimization, the technical bottlenecks such as the mechanical and insulation properties of existing aramid composite insulating paper and insufficient thermal stability have been solved.

The invention provides a multi-dimensional self-adaptive large model inference engine method and system, and relates to the technical field of artificial intelligence, and the method comprises the steps: collecting hardware identification information of calculation hardware, and calling a hardware fingerprint database for matching to generate a hardware type result and a hardware characteristic parameter; constructing a hardware abstraction layer, loading a hardware abstraction driving plug-in according to a hardware type result, and virtualizing computing hardware into a unified logic computing power unit through a hardware abstraction interface; when a large model reasoning task is triggered, dynamically routing to a back-end executor according to a hardware type result by querying a back-end registry; on the basis of hardware characteristic parameters and a hardware abstract interface, a hardware compiling tool chain is called through a rear-end executor, graph optimization and operator fusion are executed on a large model calculation graph, and therefore self-adaptive deployment and efficient reasoning of a large model on heterogeneous hardware can be achieved; the problems that in the prior art, heterogeneous hardware is insufficient in compatibility, configuration is tedious and rigid, and compilation optimization barriers and performance losses are caused during model cross-platform migration are solved.

The present application relates to the field of industrial intelligence and natural language processing, in particular to a continuous casting report generation method based on structure perception and fact verification, comprising: step S1, obtaining multi-dimensional time sequence data of continuous casting conditions and reconstructing into a structured wide table, embedding in multiple ways, domain gating denoising and cross attention mechanism, implicit dimension reduction of two-dimensional table to continuous structured soft prompt sequence; step S2, combining low-rank adaptive fine-tuning strategy, splicing the soft prompt sequence and the natural language instruction, inputting into the lightweight large language model for cross-modal feature decoding to generate the initial report text; step S3, constructing the post-check engine based on the relative distance constraint mechanism, recalling the condition facts in reverse and forcibly aligning and correcting the numerical value with probability deviation in the generated sequence. The present application alleviates the feature omission and numerical illusion problem caused by directly flattening complex industrial tables by the lightweight large language model, and improves the slot coverage rate and the factual accuracy of the core condition value under the premise of the computing power constraint of the lightweight large model.

The application relates to a hybrid inverter parallel-off-grid switching device and a switching switch device, the switching switch device comprising a relay, a shutdown module, a first starting module, a second starting module, a switching control module and a control module, the relay being connected with the shutdown module, the first starting module, the second starting module and the switching control module respectively, and the switching control module being further connected with the control module and the second starting module respectively. The switching switch device is applied to the hybrid inverter parallel-off-grid switching device, the relay can be quickly shut down through the shutdown module of the switching switch device, the disconnection speed of the hybrid inverter when quickly switching to the energy storage power supply mode during power grid failure is improved, power grid loss is reduced, and the problems of slow disconnection speed and large loss of the existing hybrid inverter when quickly switching to the energy storage power supply mode during power grid failure are solved.

The utility model discloses a kind of ultramicro spectrophotometer cuvette detection structure, including operation platform, the rotating seat on the top of operation platform is rotatably connected with flip cover, main road optical fiber is equipped on the operation platform, the bottom of operation platform is also installed with cuvette placing box.The utility model passes through adopting double optical path design, pedestal and cuvette light path are independent, integrated design, without physical replacement spare part, by software selection "pedestal" or "cuvette card slot" mode, can effectively avoid cross contamination, when cuvette detection, directly cuvette is placed in the fixed slot beside pedestal, light path passes through incident optical fiber, aligns cuvette light transmission hole, the utility model structure is simple, without complex light path switching system, effectively solve the positioning problem and light energy loss problem of physical switching, improve the range of measurement, accuracy and reliability of equipment, convenient operation, convenient to carry, with higher practical value.

The invention discloses a circuit and a method for improving interference of local oscillator phase discrimination stray on a receiver. The circuit comprises a clock input, a local oscillator unit, a filtering and amplifying unit and a frequency conversion unit which are connected in sequence. The filtering and amplifying unit is formed by connecting a pre-amplifier, an adjustable filtering unit and a post-amplifier in series; the adjustable filtering unit comprises a passband filtering and trap wave network to realize secondary suppression. The circuit can dynamically switch paths according to spurious offset, so that phase discrimination spurious is remarkably suppressed at a specific frequency point, local oscillator signals in a wide frequency range are compatible, low insertion loss and power fluctuation are kept, and the contradiction between bandwidth and performance is effectively balanced. The receiver local oscillator is realized by adopting conventional components and switch structures, does not need a special process, is easy to be integrated into an existing receiver local oscillator circuit, and has good compatibility.

The invention belongs to the technical field of spraying equipment, and particularly relates to an aluminum profile surface spraying device and a self-adaptive adjusting device.The aluminum profile surface spraying device comprises a spraying room, a suspended ceiling and an aluminum profile, the suspended ceiling penetrates through the spraying room, and a hanging rail is laid on the lower surface of the suspended ceiling through a hanging rod; the aluminum material spraying device further comprises an adjustable hoisting assembly, the adjustable hoisting assembly and the hoisting rail are hoisted in a sliding mode, strip devices are distributed at the two ends of the adjustable hoisting assembly in an array mode at an adjustable interval, and the two strip devices at the same height are used for clamping the two ends of an aluminum material and driving the aluminum material to rotate during spraying operation. And the paint suction assembly and the spraying machine are symmetrically distributed on the two sides of the spraying area, the paint suction assembly internally comprises a suction channel outer body arranged in a lifting mode, and the suction channel outer body moves up and down along with the spraying head and is used for increasing the spraying area while recycling paint. The problems that in a horizontal spraying mode, decoration face covering is uneven, the space utilization rate is low, and raw material loss is large are solved.

The utility model belongs to glass processing technical field discloses a kind of multifunctional glass processing all-in-one machine, including machine frame, the top of machine frame has integrally-formed workstation;Cross slide rail, cross slide rail is high-precision linear slide rail structure, cross slide rail is installed on workstation;Z-axis mechanism, Z-axis mechanism includes vertical rod installed on the slider in cross slide rail, the top of vertical rod is installed with Z-axis platform, Z-axis platform is connected with functional device by rotating fastening structure, functional device includes but is not limited to cutting device, edge grinding device, drilling device, workstation is vacuum adsorption type workstation, the inside of workstation has vacuum cavity, the top wall of vacuum cavity is opened with adsorption hole that is rectangular array arrangement.This utility model integrates cutting, edging and drilling process into single equipment by multi-module integrated design, can solve the problem of traditional multi-machine cooperation transfer loss and space waste, can significantly improve processing efficiency.

This invention relates to the field of laser detection technology, providing a lidar and its control method. The lidar includes a light source, a beam splitting structure, a transceiver module, and a detection module. The beam splitting structure includes a first coupler, a first phase shifter, and a second coupler connected in sequence. The first coupler splits the laser beam into a first beam and a second beam. The second coupler splits the received first and second beams into a local oscillator beam and a signal beam. The first phase shifter changes the phase of the first beam, thereby changing the splitting ratio of the second coupler. The transceiver module receives the signal beam and transmits it to the detection area, and receives the echo signal within the detection area. The detection module receives the echo signal and the local oscillator beam. The first phase shifter changes the phase difference between the first and second beams, enabling the second coupler to dynamically adjust the splitting ratio of the signal beam and the local oscillator beam, effectively reducing overall loss and improving light energy utilization efficiency.

The invention relates to the technical field of cyclotrons, and discloses a medical cyclotron beam extraction device which comprises a rack, a vacuum cover is installed on one side of the rack, a rotating track assembly is slidably connected to the interior of the vacuum cover, and track wheels are slidably connected to the inner wall of the rotating track assembly. And a sliding plate is mounted at one end of the rail wheel. According to the device, the stripping film support can carry three stripping films, 120-degree precise autorotation switching is achieved through electric control, film replacement can be completed without shutdown, shutdown loss caused by replacement operation is greatly reduced, more importantly, the device can avoid continuous particle bombardment in the same area by adjusting the angles of the stripping films, and the device is suitable for large-scale production. The problems of local overheating and abrasion are effectively reduced, the service life of a single film material is remarkably prolonged, the consumable cost of the film material is effectively reduced, and the actual requirement that the service life of the stripping film needs to be optimized is met.

The invention relates to a large depth-diameter ratio straight-through hole machining process for a tungsten carbide wedge-shaped chopper, which specifically comprises the following steps of: preparing a blank by sequentially adopting the processes of vacuum powder mixing, cold isostatic pressing and vacuum sintering; synchronously spraying electrolyte to a machining area while machining by adopting a red picosecond laser; detecting deflection data of the through hole by utilizing microscopic CT (Computed Tomography) equipment, and performing fixed-point laser correction on a deflection area by adopting low-power laser according to the detection data; polishing the inner wall of the through hole by adopting an electrolytic machining mode; carrying out honing and finishing on residual tiny scratches on the inner wall of the through hole by adopting a diamond micro-wire honing head; and detecting a finished product. According to the method, synchronous composite rough machining is carried out through cooperation of the infrared picosecond laser and the electrolyte, machining and deslagging are synchronous, the problem of deep hole melt blockage is solved fundamentally, and the depth-diameter ratio is gt; and the ultra-large depth-diameter ratio micropores of 100 are efficiently and stably formed.

The utility model relates to the technical field of touch and talk pens, and discloses a touch and talk pen capable of being placed stably, which comprises a pen shell, the top end of the pen shell is fixedly connected with a placing cylinder, the top of the placing cylinder is provided with four sliding chutes which are arranged in a circumferential manner, and the inside of each sliding chute is connected with a diameter expanding plate in a sliding manner. According to the stably-placed touch and talk pen, stable supporting is achieved through the expanding plates moving in the four directions, compared with a bidirectional sliding plate design in the prior art, the four expanding plates arranged in the circumferential direction form symmetrical supporting faces when the expanding plates are inverted, lateral force from any direction is effectively resisted, the defect that traditional two-point supporting is prone to toppling is overcome, and the stability of the touch and talk pen is improved. The balance weight ball and the microswitch cooperate to automatically trigger a sleep mode during inversion, the problem of electric quantity loss caused by the fact that a user forgets to turn off a power supply is solved, the compression spring is reset to ensure that equipment is immediately awakened when the pen body returns to a normal use posture, and compared with a pure electronic sensor, the pen is more reliable, and the risk of false triggering is avoided.

The present application relates to the technical field of motor anti-shake, and particularly relates to a vehicle motor anti-shake control method and system, a vehicle and electronic equipment, comprising: acquiring motor speed and demand torque in real time, and calculating time sequence indexes and frequency domain indexes of the motor speed; combining the collected motor speed, demand torque, time sequence indexes and frequency domain indexes into a state vector; inputting the state vector into a pre-trained neural network model, and outputting a compensation torque; superimposing the compensation torque and the demand torque to generate a total torque and transmit the total torque to a motor controller to perform torque control; wherein the training process of the neural network model comprises building an offline simulation environment, offline training a reinforcement learning model and online fine-tuning the model. The present application can realize motor anti-shake function, reduce calibration difficulty and cost, reduce loss, can be online fine-tuned and adapted to a real vehicle, and ensure control effect.

A method, system, equipment, and readable storage medium for load allocation across multiple units in a hydropower station are disclosed. This invention relates to the field of hydropower generation. Under the constraint of the total active power output of the entire station, an initial population is constructed within a safe range satisfying a preset unit vibration zone. Each individual in the initial population includes a set of load allocation schemes. For each individual, under preset rigidity and objective constraints, Pareto dominance iteration is performed to obtain a Pareto optimal solution set. The objective constraints include minimizing the total station's water consumption for power generation, the lifespan loss of unit equipment, the unit vibration zone crossing time, and the grid peak-shaving command response speed. For each candidate solution in the Pareto optimal solution set, a comprehensive score is determined based on the objective parameter value and preset weight coefficients. Based on the comprehensive score, a target load allocation scheme for the multiple units of the hydropower station is determined from all candidate solutions. This application ensures the safe operation of unit equipment while responding in real-time to changes in renewable energy output and meeting grid peak-shaving requirements.

This invention belongs to the field of water circulation technology, and particularly relates to a non-discharge cold-point water-for-injection circulation system, comprising: a water storage tank for storing water for injection; and a circulating water pump installed on one side of the water storage tank. The circulating water pump, after being cooled by a heat exchange structure, is returned to the main pipeline via a branch pipe and then flows back into the water storage tank through a connecting pipe, avoiding direct discharge of low-temperature water for injection. This solves the problem of water loss in traditional discharge schemes, reduces the production costs of pharmaceutical companies, and forms a closed loop between the main pipeline and the water storage tank. The branch pipe is connected to the main pipeline through a heat exchange structure, and all return water from the usage points returns to the main pipeline. At the same time, the circulating water pump drives the water flow circulation, ensuring that the flow velocity in the main pipeline meets the subsequent turbulence requirements, inhibiting microbial growth. Several cooling points are set up to support the simultaneous use of single or multiple cooling points, adapting to the room temperature or low temperature water-for-injection needs of different scenarios such as bottle washing machines, ultrafiltration, and disinfectant preparation, thus improving the system's versatility.

The utility model is used for graphite electrode production technical field discloses a kind of energy-saving type graphite electrode production with baking furnace, including base, the upper end of the base is fixed with furnace body, the inside of furnace body and base is provided with heat preservation material changing mechanism, by the way that furnace body and external space are not interconnected when feeding and discharging, reduce the heat loss in the heat exchange process inside furnace body, to reach the purpose of energy saving.The energy-saving type graphite electrode production with baking furnace, by setting heat preservation material changing mechanism in the inside of furnace body and base, make furnace body and external space not be interconnected when feeding and discharging, reduce the heat loss in the heat exchange process inside furnace body, solve the problem of large amount of heat energy loss caused by the violent convection of high-temperature gas in the furnace and external cold air due to frequent opening of furnace door when traditional baking furnace changes material, avoid the temperature drop in the furnace during each material changing process of traditional baking furnace and the additional consumption of about electric energy required for each temperature rising recovery to set temperature.

The application discloses a liquid crystal antenna and an antenna module, and relates to the technical field of wireless communication.The liquid crystal antenna comprises a phase shifter and an antenna unit which are connected through a connecting piece; the phase shifter is externally connected as an independent component, and the assembly flexibility and working efficiency are improved; the phase shifter comprises a first substrate and a second substrate, and liquid crystal is clamped between the first substrate and the second substrate; the phase shifter further comprises a delay line which is located on the side of the second substrate facing the first substrate; the phase shifter further comprises a feeding head which is located on the side of the second substrate away from the first substrate or on the side of the first substrate away from the second substrate; the connecting piece comprises a first connecting piece which is at least partially located on the first side of the second substrate, and the first connecting piece extends along the direction perpendicular to the plane where the second substrate is located; the first end of the first connecting piece is electrically connected with the feeding head, and the second end is electrically connected with the delay line; or the first end of the delay line is electrically connected with the feeding head, and the second end is electrically connected with the first connecting piece; the phase shifter and the connecting piece occupy a smaller area, and the planar space required by the liquid crystal antenna is saved.

The invention discloses an enhanced Micro LED (Light Emitting Diode) display chip and a preparation method thereof. The enhanced Micro LED display chip comprises a first substrate, an LED epitaxial layer and at least one photonic crystal microstructure layer, the first substrate, the LED epitaxial layer and the at least one photonic crystal microstructure layer are stacked in the thickness direction, the photonic crystal microstructure layer comprises a plurality of photonic crystal microstructure units, and each photonic crystal microstructure unit comprises periodically arranged micro-nano structures. A Mie scattering microstructure formed by Mie ball scattering particles is further arranged in the micro-nano structure, and the Mie scattering microstructure and the micro-nano structure form a local resonance structure, so that light emitted by the Micro LED unit is locally enhanced. A local resonance structure can be formed by introducing Mie ball scattering particles into the micro-nano structure, and a photonic band gap can be formed by overlapping the Mie ball scattering particles with the photonic crystal microstructure layer to form a dual enhancement mechanism, so that light emitted by the Micro LED unit is locally enhanced, angle divergence of emergent light can be inhibited, and light emitting efficiency and intensity are improved.

This invention discloses an electrocoagulation device integrating bioelectrical impedance identification function, including a left clamp handle, a right clamp handle, and a left and right clamp head controlled by the opening and closing of the left and right clamp handles, respectively. The front ends of the left and right clamp heads are provided with interlocking teeth. The left clamp head is provided with a nested multifunctional electrode, including a first outer electrode, an insulating ceramic tube disposed inside the first outer electrode, and an inner core electrode disposed inside the insulating ceramic tube. The first outer electrode and the inner core electrode constitute a pair of opposing electrodes for impedance detection and nerve stimulation. The right clamp head is provided with a second outer electrode, and the first and second outer electrodes constitute a pair of opposing electrodes for high-frequency electrocoagulation. This invention enables the coordinated operation of high-frequency electrocoagulation and bioelectrical impedance detection functions on the same instrument, and allows for safe switching between different operating modes through a switchable electrical connection structure.

This invention relates to the field of infrared detector technology, specifically to an infrared detector device and its fabrication method. The device employs a PBπBN structure. The epitaxial wafer of the device, along its epitaxial growth direction, includes a substrate, a buffer layer, a lower transition layer, a hole blocking layer, an absorption layer, an electron blocking layer, an upper transition layer, and a P-type metal contact layer. A passivation layer and a micro-coarsening light-trapping structure are provided on the surface. The hole blocking layer is a superlattice structure, and the absorption layer is a ternary / quaternary superlattice structure. This invention suppresses carrier leakage through a double-barrier structure, modulates the bandgap through a superlattice, and reduces leakage current and improves light absorption efficiency through surface treatment. The fabricated device can absorb infrared light in the 1.65~3.5μm mid-wave infrared band, with a peak quantum efficiency exceeding 55% and a peak detection value greater than 1×10⁻⁶. 11 cm·Hz 1 / 2 ·W ‑1 Dark current density less than 5.0 × 10 ‑5 A / cm 2 Suitable for high-performance infrared detection applications.

This invention provides an adaptive reactive power droop control method and system based on state of charge (SOC) sensing. By sensing the SOC of the energy storage units in real time, an adaptive reactive power droop controller is constructed to adjust the power distribution weights of each unit, achieving SOC balance and consistency among the energy storage converters. Simultaneously, to meet the demands of frequency-sensitive loads, frequency locking is achieved by directly modifying the phase angle in the reactive power control loop, ensuring frequency stability during dynamic power regulation. This invention enables precise and autonomous power balancing of distributed energy storage converter clusters in off-grid operation, providing voltage and frequency grid support for the common coupling point, and improving the operational reliability and power quality of the energy storage converter cluster.

The utility model is applicable to the technical field of photovoltaic conversion, and provides a circuit for controlling an MPPT (maximum power point tracking) photovoltaic inversion hot water system and the hot water system, the circuit comprises a photovoltaic module, a mains supply module, an MPPT inversion control module, a heating module and an interaction module, the photovoltaic module is used for converting light energy into electric energy and outputting direct-current voltage; the commercial power module is used for outputting a first AC voltage. The MPPT inversion control module is used for selecting the photovoltaic module or the commercial power module for connection, inverting a DC voltage output by the photovoltaic module into a second AC voltage, adjusting the second AC voltage in real time, outputting a first / second AC voltage, and receiving interaction data of the interaction module; the heating module is used for achieving the heating function of the hot water system. And the interaction module is used for sending interaction data of a user and the circuit for controlling the MPPT photovoltaic inverter hot water system. According to the utility model, the problem of large electric energy loss in the photovoltaic power supply process is solved.

The utility model provides a defoaming agent testing device. The defoaming agent testing device comprises a reaction part, a collection part and a vacuumizing part, the reaction component comprises a reactor, the reactor is provided with a discharge port, the collection component is provided with a collection port, the discharge port is in sealed connection with the collection port, the reactor and the collection component form a sealed test cavity, and the collection component is in sealed connection with the vacuumizing component. And the vacuumizing part is used for vacuumizing the test cavity. The defoaming agent type selection device is simple in structure, the defoaming agent type selection efficiency can be improved, the cost is reduced, and the problems of low efficiency, high cost and equipment loss caused by direct type selection of the defoaming agent through a low-temperature vacuum evaporator are solved.

The application discloses a magnesite two-stage calcination and carbon dioxide recovery system and process, relates to the technical field of efficient utilization of magnesite, and aims to solve the problem of how to realize efficient and low-consumption calcination of high-quality magnesia and efficient recovery of carbon dioxide in a same process system. A rotary kiln is arranged in a rotary kiln combustion chamber, and the combustion chamber is used for heating the outer wall of the rotary kiln by gaseous fuel; the outlet end of the rotary kiln is communicated with a gas-solid separation chamber; magnesite powder is decomposed in the rotary kiln to generate carbon dioxide gas, which is led out by an induced draft fan through the gas-solid separation chamber, and micro-negative pressure in the kiln is maintained. High-temperature dust-containing carbon dioxide enters a downstream A1 carbon dioxide cyclone gas-solid separator for gas-solid separation. After heat exchange, cooling and dust removal, the high-temperature gas is transported to a carbon dioxide liquefaction and solidification treatment system; the solid material outlet of the gas-solid separation chamber is connected to the feeding port of a suspension decomposition furnace through a high-temperature airtight conveying device, and a decomposition furnace main combustion chamber is arranged at the bottom of the suspension decomposition furnace.

An orthogonal pressurized chamber structure comprises: a housing; the driving element is detachably connected with the shell; the rocker arm is movably connected with the shell; the rocker arm is assembled in the shell, the pressure pad is assembled in the shell, a transmission element which abuts against the rocker arm and the pressure pad is further arranged in the shell, the first axial end and the second axial end of the rocker arm abut against the driving element and the transmission element respectively, and the pressure pad is connected with the transmission element in a shape matched mode. The end face, away from the transmission element, of the pressure pad is of a plane structure, and the driving element drives the pressure pad to move through the rocker arm and the transmission element. According to the pressure pad, the pressure pad is connected with the transmission element in a shape matching mode, the end face, deviating from the transmission element, of the pressure pad is in a plane shape, the contact area is enlarged to disperse pressure, and the problem of energy loss caused by pressure concentration of a traditional pressure pad is effectively solved. The utility model further discloses a toy gun.

The invention relates to the technical field of power electronics, and discloses a regenerative passive soft switching-Boost type PFC (Power Factor Correction) circuit, which comprises a main power transmission loop and a passive regenerative buffer loop. The main power transmission loop constructs an electric energy transmission path. In the passive regeneration buffer loop, a buffer inductor is connected in series with a main switch tube branch, a buffer capacitor is connected in parallel with two ends of a main switch tube, and an auxiliary winding and a main inductor share a magnetic core and are connected to the circuit. According to the circuit, a buffer inductor is used for hindering current abrupt change so as to limit the switch-on current rise rate, a buffer capacitor is used for hindering voltage abrupt change so as to limit the switch-off voltage rise rate, zero-current switch-on and zero-voltage switch-off of a main switch tube are achieved, and meanwhile an auxiliary winding transfers energy captured by a buffer loop in a lossless mode through magnetic coupling and feeds the energy back to a load side. Switching loss is eliminated, electromagnetic interference is suppressed, active control is not needed, and circuit efficiency and reliability are improved.