Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

84results about How to "Avoid radiation" patented technology

Light gray low-emissivity coated glass and preparation method thereof

PendingCN119638211AConducive to energy saving and emission reductionreduce manufacturing costMetal membraneSilver film
The invention discloses light gray low-emissivity coated glass for near-zero energy consumption buildings and a preparation method thereof, the light gray low-emissivity coated glass comprises a glass substrate and a composite metal film layer laminated on the glass substrate, and is coated glass with three metal silver film layers. According to the invention, one of the multiple composite metal film layers on the common colorless transparent float glass substrate reflects and interferes with light, so that the coated glass is light gray in the sun and has good decoration and energy-saving effects; the hollow glass is high in visible light transmittance, low in outdoor visible light reflectivity, low in solar energy transmittance and high in solar energy reflectivity, and can be made into hollow glass to achieve better energy-saving effects such as light control, heat insulation and the like, so that a building is closer to the nature and is fused with the nature.
Owner:FUJIAN XINFUXING GLASS CO LTD +3

Preparation method of low-radiation coated tempered glass

The invention discloses a preparation method of low-radiation coated toughened glass, which comprises the following steps: sintering a target material, carrying out moisture removal and degassing pretreatment on glass, carrying out coating treatment and toughening treatment, and laminating a composite metal film layer on a toughened glass substrate to prepare the toughened coated glass with three metal silver film layers. According to the method disclosed by the invention, after a common glass substrate is plated with the composite metal film layers, toughening treatment is carried out, and after the toughening treatment, all the metal film layers reflect, interfere and refract light, so that the glass disclosed by the invention is light green (French green) in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects such as light control, heat insulation and heat preservation, enables buildings to be closer to the nature, is used for near-zero energy consumption buildings, and enables the buildings to meet the requirements of the national standard General Standard for Building Energy conservation and Renewable Energy Utilization.
Owner:FUJIAN XINFUXING GLASS CO LTD +3

Mirror cabinet with ultraviolet sterilization function

The utility model discloses a mirror cabinet with an ultraviolet sterilization function, and relates to the technical field of mirror cabinets. The cabinet comprises a cabinet body, the front end of the cabinet body is connected with a cabinet door through a hinge, the inner wall of the cabinet body is fixedly connected with a first vertical plate and a second vertical plate which can divide the interior of the cabinet body into three parts, and a supporting plate is fixedly arranged on the inner wall of the front end of the cabinet body close to the middle. According to the utility model, when the light-sensitive sensor detects that the ambient light is dark, the light-sensitive sensor sends a signal to the PLC control module to turn on the ultraviolet disinfection lamp, after the signal of the light-sensitive sensor is received, the PLC control module automatically turns on the ultraviolet disinfection lamp in the mirror cabinet to start ultraviolet sterilization treatment, and when the cabinet door is opened, the light is brightened, so that the ultraviolet disinfection lamp is turned off; when the mirror cabinet is used, the light induction sensor sends a closing signal, and the PLC control module immediately closes the ultraviolet disinfection lamp, so that people are prevented from being radiated by ultraviolet rays when using the mirror cabinet, and the cabinet body can be effectively sterilized.
Owner:SHUNDE QURONGCHENG STAINLESS STEEL SANITARY IND CO LTD

Integrated radioactive particle protection implanter

The utility model belongs to the field of medical instruments, and particularly relates to an integrated radioactive particle protection implanter, which comprises a particle bin for storing a particle short rod, a particle bin seat with a handle, a push needle and a puncture needle, the particle bin seat is connected with the puncture needle through a connecting end, and the particle bin seat comprises an upper bin seat and a lower bin seat. A containing cavity used for containing the particle bin is formed between the upper bin base and the lower bin base, the upper bin base is connected with the handle, the handle, the upper bin base, the particle bin and the lower bin base are sequentially and coaxially provided with material pushing holes allowing the pushing needle to penetrate through, and the discharging ends of the material pushing holes are located on the lower bin base and connected with the connecting end. And the particle bin and the particle bin seat are integrated, so that medical staff are prevented from being affected by radiation in the installation process, and the situation that disputes are generated between hospitals and supply manufacturers due to the fact that the particle short rods are lost is reduced.
Owner:HEBEI WEISHENG HOSPITAL MANAGEMENT CO LTD

Radiotherapy equipment, accelerator maximum current intensity automatic search system and method

The invention discloses a radiotherapy device and an automatic search system and method for the maximum current intensity of an accelerator. The system comprises: a cyclotron, a first driving component connected to the cyclotron and a first ion source respectively, and driving the first ion source to move away from a second ion source according to a preset step length; a second driving component connected to the cyclotron and the second ion source respectively, and driving the second ion source to move away from the first ion source according to a preset step length; a recording module connected to the first and second driving components, recording all first positions and second positions of the first and second ion sources, and all position combinations corresponding to each first position and the second position; a debugging module controlling the cyclotron to emit a beam under each position combination, and introducing, accelerating and extracting protons generated by the first and second ion sources; a storage module, acquiring and storing the beam intensity corresponding to each position combination to form a data set; and a search module searching for the maximum beam intensity from the data set to ensure a better radiotherapy effect.
Owner:MEVION MEDICAL EQUIPMENT CO LTD

Casting protection device for steel casting

The invention discloses a steel casting pouring protection device, which belongs to the technical field of steel ladle pouring equipment and comprises a steel ladle with a pouring hole in the bottom. The moving plate is provided with a water outlet pipe and is connected with a driving assembly for driving the moving plate to move between a first position and a second position; at the first position, the movable plate blocks the pouring hole; at the second position, the pouring hole is communicated with the water outlet pipe, and the lower end of the water outlet pipe is positioned right above the pouring cup; the first protection plate is fixed on the movable plate; the first protection plate separates the moving plate and the driving assembly from the lower end of the water outlet pipe and the sprue cup; the argon protection ring is positioned between the first protection plate and the pouring cup; a plurality of gas outlet holes and a gas inlet pipeline are arranged on the argon protection ring; the first protection plate not only can block the moving plate and the driving assembly from the lower end of the water outlet pipe and the pouring cup to prevent molten steel from influencing the driving assembly, but also can be matched with an argon protection ring to improve the sealing performance during molten steel pouring, and the molten steel is prevented from being oxidized when making contact with air.
Owner:HIMILE MECHANICAL SCI & TECH (SHANDONG) CO LTD

Ultraviolet attenuation resistant coating for solar cell and preparation method and application thereof

The invention provides a preparation method of a coating for resisting ultraviolet attenuation of a solar cell. The preparation method comprises the following steps: S1, preparing a zinc acetate solution and a sodium hydroxide solution as a solution A and a solution B for preparing the coating; s2, mixing the solution A and the solution B to obtain a mixed solution, dropwise adding ethanol into the mixed solution to form a milky white solution C, stirring the solution C, and heating to obtain white ZnO nano powder; and S3, polyvinyl butyral is dissolved in methylbenzene, stirring is performed until the solution is clear, then the ZnO nano powder is further added, stirring is performed to obtain a PVB-ZnO solution, and the PVB-ZnO solution is cured to obtain the ultraviolet attenuation resistant coating for the solar cell. The invention also comprises the coating and application thereof, wherein the application comprises application of the coating on a solar cell module. According to the coating, the ultraviolet degradation resistance of the solar cell is improved, the service life of the solar cell is prolonged, and the coating has high commercialization and popularization value.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

Shielding cladding barrel for radioactive waste transfer

The shielding cladding barrel for radioactive waste transfer comprises an outer barrel, the top end of the outer barrel is in threaded connection with a barrel cover, a containing base is rotatably installed in an inner cavity of the outer barrel, a plurality of through holes are formed in the top end of the containing base at equal intervals in the circumferential direction, and containing plates are installed on the inner walls of the through holes; the placing plate can support a radioactive waste container, and a lifting device used for jacking up the radioactive waste container placed at the top end of the placing plate is assembled at the bottom end of an inner cavity of the outer barrel; the lifting device comprises a rotating wheel, and the rotating wheel is rotationally installed in an inner cavity of the outer barrel. According to the shielding cladding barrel for radioactive waste transfer, in actual use, it can be guaranteed that the positions of all waste containers are stable after the waste containers are placed, radioactive waste container bags can be automatically pushed out, taking is convenient, taking does not need to be conducted deeply, much radiation is avoided, it can be accurately guaranteed that the positions of materials needing to be taken are aligned with the pushing-out position, and the working efficiency is improved. The operation is convenient.
Owner:HAINENG MASCH TECH (LIAONING) CO LTD

Digital twin model display equipment

PendingCN119559871Aavoid thermal conductivityavoid radiationProjectorsAdvertisingCold air3D projection
The invention relates to the technical field of display equipment, in particular to digital twinborn model display equipment, which comprises a digital twinborn model display stand, and has the beneficial effects that the digital twinborn model display stand and a lifting display screen mounting frame form a three-dimensional lifting display stand; the model holographic projector device, the auxiliary display screen device and the top display screen device are installed in a matched mode, three-dimensional projection display can be carried out on the model, and light effect display, background display and synchronous display of related characters, charts or other supplementary information can be carried out in cooperation with three-dimensional display of the model holographic projector device. The digital twinborn model cooling system can help audiences to better understand functions and characteristics of a digital twinborn model, and is matched with design of a dual-channel heat dissipation mechanism, two independent cold air heat dissipation channels are differentiated, network connection control equipment, auxiliary display screen equipment and model holographic projector equipment are specifically and separately cooled, and heat conduction or radiation between the network connection control equipment, the auxiliary display screen equipment and the model holographic projector equipment can be avoided.
Owner:DAYU ARTIFICIAL INTELLIGENCE TECHNOLOGY (NANJING) CO LTD

Teleoperation radiation-resistant metal mechanical property test sample preparation system

The invention provides a teleoperation radiation-resistant metal mechanical property test sample preparation system, and belongs to the technical field of nuclear industry science, the teleoperation radiation-resistant metal mechanical property test sample preparation system comprises a cutting machine body for preparing and processing all radioactive metal samples, and the preparation system further comprises a purification system installed on the right side of the cutting machine body; the shielding system is mounted on the cutting machine body and the purification system; the cooling system is mounted on the rear side of the purification system; the automatic threading device is mounted on the cutting machine body and is used for providing uninterrupted copper wires for the sample preparation process; and the remote control system is installed at the far end and used for driving the cutting machine body, the purification system, the cooling system and the automatic wire penetrating device and monitoring the operation states of all the systems at the same time. According to the invention, the contradiction between irradiation sample preparation and harm of radioactivity to people and equipment is effectively solved, a radioactive source and an operator as well as the radioactive source and the sample preparation equipment can be isolated, and the operator and the sample preparation equipment are protected from being damaged by radiation.
Owner:CHINA SPALLATION NEUTRON SOURCE SCI CENT +1

Inner container heating structure and heating kettle body

ActiveCN222303656UGuaranteed fitGuaranteed thermal efficiencyWater-boiling vesselsHeat transferHot plate
The utility model discloses an inner container heating structure and a heating kettle body, the inner container heating structure comprises an inner container, a heating assembly and a heat insulation support, the inner container comprises a container body and a container bottom, and the container bottom is of a hemispherical structure with a plane bottom; the heating assembly comprises a heat transfer plate and a heating element, and the heat transfer plate is matched with the liner bottom in shape and attached to the bottom of the liner bottom to achieve heat conduction. The heat insulation support is connected with the heat transfer plate and located below the heat transfer plate. Wherein the edge of the heat transfer plate is bent outwards to form a turnup, a connecting piece connected with the heat insulation support is arranged on the turnup, and a heat insulation piece is arranged at the connecting position of the heat insulation support and the connecting piece. Therefore, the turnup is arranged at the edge of the heat transfer plate, and the connecting piece is riveted on the turnup, so that the connecting piece can be vertically arranged so as to be conveniently connected with the heat insulation bracket; by arranging the heat insulation piece, contact between the connecting piece and the heat insulation support is avoided, heat conducted to the heat insulation support is reduced, and temperature rise of the heat insulation support is avoided.
Owner:ZHONGSHAN MEIYANG ELECTRIC CO LTD

Pipeline internal detection system and method based on particle ray detection imaging

The invention relates to a pipeline internal detection system and method based on particle ray detection imaging, and the system comprises a ray source and a plurality of detectors which are circumferentially and uniformly distributed around the ray source at intervals. The plurality of particle scattering rays are formed after a plurality of particle incident rays emitted by the ray source are scattered by the wall of the to-be-detected pipeline during detection. The method has the beneficial effects that the design is reasonable, rapid detection of pipeline wall defects, especially tiny defects, can be realized, the pipeline internal detection precision and defect adaptability are improved, and the technical problem of internal detection of tiny complex defects of the pipeline is solved.
Owner:PIPECHINA SOUTH CHINA CO +1

A mounting structure of a PCB board large-current conductor

ActiveCN224419161UImprove shielding effectAchieve all-round metal surroundElectrical conductorMechanical engineering
The utility model relates to a mounting structure of PCB board large current conductor, this mounting structure includes metal base, PCB board, large current conductor and upper shell, the recessed groove for the large current conductor inlay is integrally arranged on the metal base, the PCB board sets up on the upper surface of metal base, the utility model discloses through embedding the large current conductor on the PCB board into the recessed groove inside the metal base, realizes the all -round metal surrounding and shielding of large current conductor, effectively avoids the electric field, magnetic field signal radiation to outside of the current on the large current conductor, realizes better EMC shielding effect.
Owner:SHANGHAI DEMAT TECHNOLOGY CO LTD

Preparation method and application of bio-based modified rosin resin

The invention discloses a bio-based modified rosin resin preparation method, which comprises: placing rosin in a container, introducing carbon dioxide, heating and stirring until the rosin is molten, cooling, sequentially adding phenol and solvent oil, stirring, adding a catalyst, and heating to obtain a mixed material liquid; adding water into the mixed material liquid, stirring and washing, introducing carbon dioxide after washing, heating to evaporate out the solvent oil, heating the mixed material liquid to 200 DEG C, adding an antioxidant, pentaerythritol and octanol, stirring and mixing, heating to 260-280 DEG C, carrying out constant-temperature treatment, cooling to 200-220 DEG C, adding the antioxidant and nano-hydroxyapatite, stirring, cooling to 200-220 DEG C, adding the antioxidant and nano-hydroxyapatite, and carrying out uniform mixing, so as to obtain a finished product. And discharging, cooling, filtering and granulating to obtain the bio-based modified rosin resin. The rosin is used for replacing turpentine to produce the rosin modified phenolic resin, formaldehyde is not added in the production process, volatile organic compounds are not generated after the product is applied, and the rosin modified phenolic resin is environment-friendly and safe and can be applied to the field of automobile adhesives.
Owner:GUANGXI ZHONGCHANG RESIN

Radiation-proof luggage security check instrument

The utility model provides an anti-radiation luggage security check instrument, which comprises a shell, a conveyor belt is arranged at the bottom of the shell, the shell comprises an object inlet end and an object outlet end, an X-ray searchlight is arranged between the object inlet end and the object outlet end, the object inlet end and the object outlet end are respectively provided with at least more than two anti-radiation curtain cloths which are arranged at intervals, and the X-ray searchlight is provided with an X-ray detector. A transition space is formed between every two adjacent anti-radiation curtain cloths located at the object inlet end or the object outlet end, when luggage passes through the object inlet end and the object outlet end and pushes away one of the anti-radiation curtain cloths, the other anti-radiation curtain cloths are closed and play an anti-radiation role, and therefore the situation that the anti-radiation curtain cloths tilt up when the luggage passes through the security check instrument, and the luggage is prevented from being damaged due to the fact that the anti-radiation curtain cloths tilt up when the luggage passes through the security check instrument is avoided. Therefore, a certain gap is formed, and certain radiation to a human body when a person stretches into the radiation-proof curtain close to the outer side to take luggage is avoided.
Owner:COMPREHENSIVE TECH SERVICE CENT OF QUANZHOU ENTRY EXIT INSPECTION & QUARANTINE BUREAU OF P R C

A heat digestion treatment device for elemental speciation

The utility model provides a heat digestion treatment device for element form valence state change, including casing, digestion pool, buffer pool, reaction pipeline, circulating pipeline, liquid circulating device and heating device, and is provided with oil containing cavity in digestion pool and buffer pool, and heating device is installed in oil containing cavity, and liquid circulating device is connected on any circulating pipeline for driving liquid circulation flow between digestion pool and buffer pool. Through setting up oil containing cavity to contain heat conducting oil, heat conducting oil is used as heat transfer medium to heat reaction pipeline, improves the temperature of heating, and has strong digestion capacity, on the other hand, sets up buffer pool and communicates buffer pool with digestion pool through circulating pipeline, and liquid circulating device drives heat conducting oil circulation flow between buffer pool and digestion pool, thereby makes heat conducting oil heating temperature rise more stable.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Full-automatic small-diameter tube DR detection system

The invention discloses a full-automatic small-diameter tube DR detection system, relates to the technical field of automatic nondestructive testing, and automatically performs grating opening and closing, image acquisition, image quality indicator placement and defect identification, realizes full automation of small-diameter tube flaw detection operation, greatly reduces the workload of workers, and improves the production efficiency. And the flaw detection data are stored and traced by utilizing information such as a manufacturing operation management platform and a quality database, so that the data are effectively protected, and quick query and recheck are facilitated. Automatic double-filament and single-filament placement is achieved, and the image quality measurement efficiency is improved. The image quality indicator comprises a double-wire image quality indicator and a single-wire image quality indicator, the double-wire image quality indicator assists in measuring the DR image resolution of the small-diameter tube, and the single-wire image quality indicator assists in measuring the DR image sensitivity of the small-diameter tube, so that the quality of an image acquired in full-automatic DR detection of the small-diameter tube is confirmed, and subsequent defect evaluation on the DR image is facilitated. The monofilament image quality indicator has a plurality of different specifications so as to carry out image quality confirmation corresponding to different pipe diameter wall thicknesses of small-diameter pipes.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP +1

Gas-liquid separator

A gas-liquid separator comprises a shell, a partition plate, an injection molding part and an end socket, the end socket comprises a first welding part and a main body part, the shell comprises a second welding part and a main body part, the second welding part and the first welding part are fixed together through laser welding and form a welding seam, and the welding seam and the injection molding part are separated by the partition plate. The partition plate is arranged between the welding seam and the injection molding part to isolate a heat source and direct radiation, deformation of the injection molding part caused by high temperature and laser radiation is avoided, and the effect of guaranteeing product quality is achieved.
Owner:SHAOXING SANHUA AUTOMOTIVE THERMAL MANAGEMENT TECHNOLOGY CO LTD

Charger

The utility model provides a charger, which is helpful for realizing compact design of each part in the charger, fully utilizing limited space and further helpful for the development of the charger towards the miniaturization direction. Meanwhile, the transformer and the AC pin are separated through the first capacitor, electromagnetic interference generated by an electronic component can be effectively prevented from being coupled to the AC pin in the charging state, the electromagnetic interference is further prevented from influencing the mains supply through the AC pin, and the charging performance of the charger is guaranteed; noise generated during operation of electronic components can be isolated, the noise is prevented from being radiated to the surrounding environment, the operation noise of the charger in the charging state is reduced, and the user experience is improved.
Owner:ANKER INNOVATIONS TECH CO LTD

H-type photovoltaic low-voltage convergence cabinet

The utility model discloses an H-shaped photovoltaic low-voltage confluence cabinet which comprises a connecting cabinet body and a frame cabinet body, the connecting cabinet body is communicated with the frame cabinet body, and the connecting cabinet body is provided with a heat dissipation device. The operation surface deviates from the connecting cabinet body, and the maintenance surface is close to the connecting cabinet body; the frame is provided with a frame circuit breaker, the frame circuit breaker is connected with the first bus copper bar group, the operation surface is provided with a molded case circuit breaker module, the molded case circuit breaker module is connected with the second bus copper bars, and the tail ends of the plurality of second bus copper bars are respectively connected with the first bus copper bar; and the first bus copper bar group and the second bus copper bar group are arranged close to the maintenance surface of the frame cabinet body. A maintenance channel with the front end and the rear end communicated is formed between the two maintenance faces. The first bus copper bar group and the second bus copper bar group are arranged close to the maintenance surface, so that heat can be prevented from being directly radiated to the operation surface, normal operation of the bus cabinet is avoided, and the problems of difficult maintenance and slow heat dissipation caused by narrow maintenance space of a traditional bus cabinet are solved.
Owner:FOSHAN EAGLERISE POWER SCI & TECH SHUNDE CO LTD

A neutron diffraction multi-channel collimation device

This invention discloses a multi-channel collimation device for neutron diffraction, belonging to the technical field of neutron scattering spectrometers. The device includes a base, separating aluminum plates, and a detector. The base has an arc-shaped structure, with two bases arranged opposite each other. Each base has multiple mounting cavities spaced circumferentially on it. Each mounting cavity contains multiple separating aluminum plates spaced vertically, with a channel for the neutron beam to pass between adjacent separating aluminum plates. The detector is configured in a one-to-one correspondence with each channel. This multi-channel collimation device can optimize the neutron signal and reduce stray background signals, thereby ensuring the accuracy of experimental results.
Owner:CHINA SPALLATION NEUTRON SOURCE SCI CENT +1

Fixing device for radioactive 90 strontium applicator

The invention provides a radioactive 90 strontium applicator fixator which comprises a protective shell, and a source window is arranged in the middle of the lower end of the protective shell; the source shell is arranged in the protective shell in an up-and-down sliding mode, a radioactive source is embedded in the source shell, and the radioactive source and the source window are arranged in an up-and-down corresponding mode; the fixing mechanism comprises suction cylinders arranged on the two sides of the protective shell respectively, pistons arranged on the inner walls of the suction cylinders in a sliding mode and piston rods arranged at the upper ends of the pistons, one ends of the piston rods extend out of the suction cylinders, and openings of the suction cylinders face downwards; and the rubber pad is detachably connected to the lower surface of the protective shell. The device can be adsorbed on the skin through negative pressure, a patient or a family member does not need to hold the handle, the patient and the family member are prevented from making contact with part of rays, the two hands are liberated, the phenomenon of irradiation part deviation or uneven irradiation caused by manually holding the handle is effectively avoided, and the treatment efficiency is improved; relative sliding of the applicator and the rubber belt can be avoided, the irradiation accuracy of a diseased region is ensured, and the probability that normal skin is irradiated is reduced; automatic control is achieved, convenience and reliability are achieved, and protection performance is good.
Owner:SECOND AFFILIATED HOSPITAL OF COLLEGE OF MEDICINEOF XIAN JIAOTONG UNIV

Cleaning machine for flange screw hole of pressure vessel of nuclear power plant

The utility model discloses a nuclear power plant pressure vessel flange screw hole cleaning machine which comprises a vehicle body, a cleaning mechanism, a positioning and blow-drying mechanism, a polishing mechanism and a detecting mechanism. The vehicle body is provided with a moving assembly; the cleaning mechanism is installed on the vehicle body and used for cleaning flange screw holes of the pressure vessel of the nuclear power plant. The positioning and blow-drying mechanism is mounted on the vehicle body and is used for positioning and blow-drying flange screw holes of the pressure vessel of the nuclear power plant; the polishing mechanism is mounted on the vehicle body and used for polishing the flange screw hole of the pressure vessel of the nuclear power plant; the detection mechanism is installed on the vehicle body and used for detecting the flange screw hole of the pressure vessel of the nuclear power plant. By means of the nuclear power plant pressure vessel flange screw hole cleaning machine, the cleaning efficiency of the nuclear power plant pressure vessel flange screw hole can be effectively improved, workers can be effectively prevented from being radiated in the cleaning process, and the health and safety of the workers can be effectively guaranteed.
Owner:YANGJIANG NUCLEAR POWER +1

Anti-electromagnetic interference USB converter

ActiveCN222283081Ustable outputreduce rate of ascentPower conversion systemsCapacitanceConverters
The utility model provides an anti-electromagnetic interference USB converter, which relates to the technical field of power supply anti-interference, and comprises a rectification filter circuit, a transformer circuit and a power supply output circuit, and a spike pulse absorption circuit is arranged between the output end of the rectification filter circuit and the primary side of the transformer circuit. The spike pulse absorption circuit comprises a resistor R1, a resistor R3, a capacitor C1, a diode D1 and an inductor L2; the output end of the rectification filter circuit is electrically connected with the primary side positive electrode of the transformer circuit, the primary side negative electrode of the transformer circuit is electrically connected with the positive electrode of the D1 through the L2, the negative electrode of the D1 is connected with the R3 and the R1 in series and then electrically connected with the output end of the rectification filter circuit, and the C1 is connected to the two ends of the R1 in parallel. According to the USB converter, the L2 is used for actively inhibiting high-frequency interference to absorb peak current in a loop, so that radiation in electromagnetic interference can be solved, the stability of the whole circuit is ensured, and stable voltage is output.
Owner:NINGBO HENGDA GAO ELECTRONIC COMMERCE DEV CO LTD

Nuclear power plant pressure vessel flange screw hole cleaning equipment and positioning drying device thereof

The utility model discloses nuclear power plant pressure vessel flange screw hole cleaning equipment and a positioning and drying device thereof. The positioning and drying device comprises a positioning and drying mechanism and a lifting mechanism. The positioning drying mechanism comprises a first sleeve, a second sleeve, an air guide pipe, a suction pipe and an air conveying pipe; the second sleeve is mounted in the first sleeve; an air guide hole is formed in the side wall of the first sleeve; the air guide pipe is connected with the first sleeve; a suction opening of the suction pipe is formed in the bottom of the first sleeve; the first sleeve is provided with a first through hole, the second sleeve is provided with a second through hole, the first through hole and the second through hole are oppositely arranged to form limiting channels, each limiting channel is provided with a positioning and fixing block, and the air conveying pipe is used for driving the positioning and fixing blocks to be tensioned outwards or shrunk inwards. The positioning drying device is applied, manual drying by workers is not needed, the drying operation efficiency of the flange screw holes of the pressure vessel of the nuclear power plant can be better improved, the workers can be prevented from being radiated in the drying operation process, and the health and safety of the workers can be effectively guaranteed.
Owner:YANGJIANG NUCLEAR POWER +1

Gamma spectrometer shielding device

The present invention discloses a gamma spectrometer shielding device, which relates to the field of nuclear physics detection technology, and its main purpose is to provide a gamma spectrometer shielding device that can replace the radioactive source without opening the cover. The main technical scheme of the present invention is: a gamma spectrometer shielding device, comprising: a shell, the shell has a first cavity for placing the detector; a cover, the cover is rotatably connected to the shell, the cover has a first hole slot and a second hole slot, the first hole slot passes through the cover horizontally, the second hole slot is arranged in the middle of the cover, one end of the second hole slot is interconnected with the first cavity, and the other end is interconnected with the first hole slot; a sliding component, the middle part of the sliding component has a plurality of placement holes slots, each placement hole slot has a placement table for placing the radioactive source, and the sliding component can be inserted into the first hole slot. The present invention is mainly used to detect the radioactivity of the sample to be tested.
Owner:XINJIANG UYGUR AUTONOMOUS REGION INST OF MEASUREMENT & TESTING

High-efficiency air heat exchanger with long service life for waste heat boiler

The utility model discloses a waste heat boiler efficient air heat exchanger with long service life, which comprises a heat exchange shell, the bottom of the heat exchange shell is connected with a base, one side of the heat exchange shell is communicated with a flue gas input pipe, the other side of the heat exchange shell is communicated with a flue gas output pipe, one side of the top of the heat exchange shell is communicated with an air input pipe, and the other side of the heat exchange shell is communicated with an air outlet pipe. The other side of the top of the heat exchange shell communicates with an air output pipe, a first mounting frame is connected to the inner wall of the heat exchange shell, a temperature-resistant heat insulation frame is fixedly mounted in the middle of the first mounting frame, a second mounting frame is connected to the inner wall of the temperature-resistant heat insulation frame, a heat exchange pipe is fixedly mounted in the middle of the second mounting frame, and the temperature-resistant heat insulation frame comprises a rectangular frame and a side edge sealing plate. According to the efficient air heat exchanger of the waste heat boiler with the long service life, the whole heat exchanger enables the temperature in the heat exchange shell not to be in a high-temperature state, then weld joints at the connecting positions of the side plates of the shell cannot crack due to thermal expansion, and the service life of the heat exchanger is prolonged.
Owner:ZHEJIANG AEROSPACE QINGYUAN ENVIRONMENTAL TECHNOLOGY CO LTD

Feeding trough for livestock raising

The feeding trough comprises a trough body with an opening in the upper side, an ultraviolet lamp tube is installed on the upper portion of the inner side of the rear side wall of the trough body, and a protective cover capable of being connected to the outer side of the ultraviolet lamp tube in a covering mode is connected to the rear side wall of the trough body. And the upper side of the opening of the tank body is connected with a shielding curtain capable of covering the opening of the whole tank body through a moving unit. The disinfection tank has the advantages that the ultraviolet lamp tube is arranged in the tank body, the interior of the tank body can be conveniently sterilized and disinfected, the shielding curtain capable of being unfolded and folded for storage is arranged above the opening of the tank body, when ultraviolet disinfection is carried out, the moving unit is controlled to cover the opening of the tank body with the shielding curtain, the ultraviolet lamp is covered with the shielding curtain, and then the ultraviolet lamp is placed in the tank body. Radiation to livestock is avoided; besides, the protective cover capable of being moved away is arranged on the ultraviolet lamp tube, the ultraviolet lamp tube is covered and protected, the situation that feed splashes and is attached to the ultraviolet lamp tube when the livestock eat is avoided, and when disinfection is needed, the protective cover is moved away, and the ultraviolet lamp tube is exposed.
Owner:天津市滨海新区农业农村发展服务中心(天津市滨海新区动植物疫病防控中心)

Engine exhaust aftertreatment system and construction vehicle

ActiveCN224532813Ufirmly connectedeasy access
The application provides an engine exhaust aftertreatment system and an engineering vehicle. The engine exhaust aftertreatment system comprises a support, a heat insulation plate and an aftertreatment assembly. The support comprises a support beam. The bottom of the support beam is provided with an engine. The heat insulation plate covers the support beam and is connected to the support beam. The heat insulation plate is provided with a pipe passing hole. The aftertreatment assembly is arranged on the heat insulation plate. The aftertreatment assembly is located at the top of the engine. The aftertreatment assembly and the engine are connected through a pipeline. The pipeline penetrates through the pipe passing hole. In the application, the aftertreatment assembly is located at the top of the engine, which facilitates the connection of the engine, shortens the high-temperature pipeline and is beneficial to the heat entering the aftertreatment assembly. The heat insulation plate is arranged between the aftertreatment assembly and the power room, so that the aftertreatment assembly and the power room are isolated, heat radiation to the power room is avoided and the influence of heat on the operation of the engine is reduced.
Owner:CRCC HIGH TECH EQUIP CORP LTD

A wireless charging structure for mobile devices

The present invention relates to a wireless charging structure for mobile devices, including a top cover, a shell and a chassis, wherein an opening is provided at the top of the shell, and a coil and a support frame are provided inside; a PCB board and a motor are provided on the chassis, the motor is electrically connected to the PCB board, and a transmission assembly is provided between the motor and the top cover; the top cover is lifted and opened and closed on the opening of the shell through the cooperation of the transmission assembly and the motor; the mobile device is placed on the support frame when the opening is open, and wireless charging is achieved through the coil when the opening is closed. By using the cooperation of the transmission assembly and the motor, the top cover can be lifted and opened and closed on the opening of the shell, so that users can wirelessly charge different types and a large number of mobile devices at the same time, thereby improving the use range of the product and the user's experience; the top cover, and / or the shell, and / or the chassis are also provided with an anti-radiation coating, which can prevent radiation damage to the user, so that the user can wirelessly charge the mobile device safely and reliably.
Owner:FOSHAN SHUNDE GUANYUDA POWER SUPPLY CO LTD