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84results about How to "Will not increase the load" patented technology

Post-rolling control cooling process for hot-rolled H-shape steel

The invention provides a post-rolling control cooling process for hot-rolled H-shape steel. The hot-rolled H-shape steel enters a cooling device after the rolling is finished, an upper nozzle and a lower nozzle are respectively aligned with upper/lower R parts of the hot-rolled H-shape steel to carry out water spray cooling, and a left nozzle and a right nozzle are respectively aligned with left/right flank centers of the hot-rolled H-shape steel to carry out water spray cooling. The invention is characterized in that the pressure of cooling water is within 0.7 to 1.2MPa, the water quantity is within 1,200 to 2,000m3/hour, the cooling rate is within 75 to 150 DEG C/s and the cooling time is within 3 to 5 seconds; and the hot-rolled H-shape steel is cooled to 20 to 30 DEG C above the martensitic phase transformation point of the corresponding steel grade after the rolling under the temperature of 850 to 1,000 DEG C is finished. By adopting the cooling process in the invention, the actual grain size of ferrite at the core part of the hot-rolled H-shape steel can be refined from 8-10 grades to 10-12 grades, and a tissue of bainite plus sorbite can be formed on the surface of the hot-rolled H-shape steel, thereby obviously improving the strength and toughness of the hot-rolled H-shape steel and improving the yield strength of the hot-rolled H-shape steel by more than 70MPa.
Owner:MAANSHAN IRON & STEEL CO LTD

Video interactive live broadcast method and system

InactiveCN111263177ADoes not increase computational complexityWill not increase the loadSelective content distributionComputer graphics (images)Engineering
The invention discloses a video interactive live broadcast method and system. The method comprises the following steps: a client terminal receives and decodes a surround video transmitted by a live broadcast server, and displays a video of a part of angles of the surround video on a display screen; the client terminal detects a sliding gesture of a user on the display screen, and generates a display view angle switching instruction according to the sliding gesture; the client terminal acquires current display view angle information of the video of a part of angles, and calculates target display view angle information of the next moment according to the display view angle switching instruction and the current display view angle information; and the client terminal acquires a video of a target view angle according to the target display view angle information of the next moment, and switches to display the video of the target display view angle. The system comprises a live video sending module, a live video receiving module, a view angle switching instruction generation module, a view angle information acquisition module and a view angle switching module. According to the invention, auser can autonomously select the viewing angle of watching the video and can freely switch the viewing angle of displaying the video.
Owner:杭州皮克皮克科技有限公司

Permanent magnet type ultralow-frequency vertical tuned mass damper

ActiveCN107228147ASmall sizeSolve the problem of excessive static elongationNon-rotating vibration suppressionShock absorbersEngineeringFlywheel
The invention discloses a permanent magnet type ultralow-frequency vertical tuned mass damper. The permanent magnet type ultralow-frequency vertical tuned mass damper comprises an inertia mass system, an electromagnetic damping system and a support system, wherein the inertia mass system comprises a counterweight block, a flywheel, an inclined flexible hinge and a vertical flexible hinge; the electromagnetic damping system comprises a conductor plate and a permanent magnet; and the support system comprises a bearing bracket, a flexible hinge fixed plate, an extension spring, a bearing frame, an upper spring cross beam, a lower spring cross beam, a bearing and a base. A straight circular flexible hinge is adopted as a linear-rotary motion conversion mechanism; the space structure of the flexible hinge is well designed; and when the main structure is slowly and slightly vibrated, a small linear motion of the counterweight block can be effectively converted to a rotating motion of the flywheel, so that the problem of excessive static elongation of the spring of the ultralow-frequency vertical tuned mass damper is solved, and the vibration isolating performance of the tuned mass damper in the field of ultralow-frequency weak vibration is improved.
Owner:ZHEJIANG UNIV

Four-stage three-phase fluidized bed step-feed deep nitrogen removal system

The invention belongs to the field of domestic sewage purification, and relates to a method for treating domestic sewage by adopting a four-stage three-phase step-feed deep nitrogen removal system. The method solves the problems that the conventional domestic sewage treatment process is poor in nitrogen removal effect and difficult to reach the specified standards, and can fulfill the upgraded reforming goal of the conventional sewage plant on the premise that the civil facilities are not changed. The method comprises the step of respectively delivering the domestic sewage to a reactor from anoxic zones of four stages, wherein the anoxic zones and aerobic zones are arranged at intervals, so that nitration liquid reflux facilities of the system are saved; and sludge reflux is only performed in the first anoxic zone, so that the energy is saved and nitration liquid required by denitrification can be supplied to the first anoxic zone. A fluidized filling material is added into the aerobic zones, and a fluidized bed is organically combined with a step-feed process, so that the advantages of increasing the biomass and the bioactivity of the system, reducing sludge, enhancing the three-phase system in the system and the like are achieved.
Owner:SHENYANG JIANZHU UNIVERSITY

Mobile communication service end-to-end performance evaluation method and system

InactiveCN103024767AInnovation in Performance Evaluation MethodsGet goodWireless communicationInformation repositoryUser perception
The invention discloses a mobile communication service end-to-end performance evaluation method and a system. The method comprises the following steps: collecting data of a mobile communication network port; carrying out preprocessing on the collected data and obtaining a key field information database which is needed for the end-to-end performance evaluation index statistics; obtaining MR data and CT data from a measurement report MR system and a call tracking CT system respectively, and according to the information of the MR data, the CT data and key field information database, carrying out index statistics in accordance with a mobile communication service end-to-end performance evaluation index system; and carrying out service performance evaluation according to the statistic mobile communication service end-to-end performance evaluation index. The mobile communication service end-to-end performance evaluation method and the system disclosed by the invention carries out innovation on the performance evaluation method of the mobile communication service by taking a user perception as a basis and the service as an analysis object, so that operators can evaluate the mobile communication service end-to-end performance which reflects the user perception.
Owner:ZTE CORP

Paddy-field grass-burying roller

The invention relates to a paddy-field grass-burying roller belonging to spare parts of agricultural machinery and aiming at the defects that the prior paddy-field grass-burying operation part is uniformly designed on a rotary blade, not only increases the resistance of the rotary blade and enables a tractor to work in an overload working state, but also influences the grass-burying operation effect and has the problem of often bringing up straw and weeds justly buried. The paddy-field grass-burying roller comprises two corresponding roller end boards, strip grass-burying boards and a roller shaft, wherein the strip grass-burying boards are sequentially connected between the two corresponding roller end boards and respectively have a backward angle, and the roller shaft is arranged in the center of the roller end boards. The invention has the following advantages after tests that the paddy-field grass-burying roller can not increase the resistance of the rotary blade so as not to influence the normal operation of the tractor, not only can press crop straw and weeds into paddy-field mud, but also adds the functions of puddling and leveling a paddy field by crushed clods, is suitable for matching with tractors of various models and can be towed by animal labor or connected with a dry-field operation compression roller for the paddy-field grass-burying operation, thereby being a grass-burying operation part with good suitability, simple structure and low cost.
Owner:王森豹

Air conditioner for machine room

The invention relates to an air conditioner for a machine room, wherein an outlet of a compressor is connected to an inlet of a condenser through a first unidirectional control valve, an outlet of the condenser is connected to an inlet of a liquid-storing device, an outlet of the liquid-storing device is connected to an inlet of an evaporator through a first throttling device, an outlet of the evaporator is connected to an inlet of an on-off control valve, and an outlet of the on-off control valve is connected to an inlet of the compressor. The air conditioner for the machine room is characterized by also comprising a liquid pump, a second throttling device and a second unidirectional control valve, wherein the liquid pump is connected in parallel to both ends of the first throttling device after being connected in series with the second throttling device, an inlet of the liquid pump is connected with the outlet of the liquid-storing device, an outlet of the liquid pump is connected with an inlet of the second throttling device, an outlet of the second throttling device is connected with the inlet of the evaporator, an inlet of the second unidirectional control valve is connected onto a pipeline between the evaporator and the on-off control valve, and an outlet of the second unidirectional control valve is connected onto a pipeline between the first unidirectional control valve and the condenser. The air conditioner for the machine room has an obvious energy-saving effect, the load of a fan is not increased, and fresh-wind condensation and air-quality problems are avoided.
Owner:GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD

Barrage sending period setting method, storage medium, electronic equipment and system

The invention discloses a barrage sending period setting method, a storage medium, electronic equipment and a system, and relates to the field of network live broadcast. The method comprises the stepsthat: after carrying out partitioning and classification on all live broadcast rooms according to live broadcast themes of all the live broadcast rooms which need to be subjected to barrage sending period setting, a server side sets at least two levels of continuous user number intervals for each of the same type of live broadcast rooms; after users log in a live broadcast room, when the server side monitors that a partitioning identifier exists in the current broadcast room and a user number of the live broadcast room is greater than a user number thread of the live broadcast room, the server side determines a barrage sending period of the user number interval corresponding to the number of the uses viewing the current live broadcast room is determined and used as an actual barrage sending period; and the server side carries out association on the actual barrage sending period and user IDs of current users. According to the invention, on the basis of not abandoning barrages, the number of the barrages in the live broadcast room can be controlled, so that not only can barrages sent by the users be guaranteed to be displayed, but also a load of the server side cannot be increased.
Owner:WUHAN DOUYU NETWORK TECH CO LTD

Potato peeling machine

The invention discloses a potato peeling machine. The machine is characterized by comprising a base, moving wheels and a peeling cylinder, a motor is arranged in the center of the inner bottom of a cavity of the peeling cylinder, the output end of the motor extends to the middle of the peeling cylinder, and a rotating disc is fixedly connected to the end of the motor; a pushing roller shaft is arranged at the center of the top of the rotating disc, a spiral blade is arranged on the pushing roller shaft, and a driven gear sleeves the end of the portion, at the bottom of the rotating disc, of apeeling roller; the driven gear is meshed with a gear ring, and a steel wire brush is arranged on the portion, at the top of the rotating disc, of the peeling roller; peel outlet through holes are formed in the side wall, between the bottom of the rotating disc and the gear ring, of the peeling cylinder; inner trays are arranged on the portions, at the ends of the peel outlet through holes in thecavity of the peeling cylinder, on the side of the peeling cylinder; outer trays are arranged on the portions, at the ends of the peel outlet through holes outside the cavity of the peeling cylinder,on the side of the peeling cylinder; water drainage pipes are arranged at the bottoms of the outer trays, the side of the peeling cylinder is provided with a discharge door and an observation door, and a ventilation strip hole is formed in the observation door. The machine has the advantages of being simple in structure, good in peel separation effect and high in working efficiency.
Owner:史玉花

Anti-abrasive device for heat exchange tube bundle in trichlorosilane synthetic furnace

InactiveCN104591190AReduce the frequency of maintenance and replacementLow costHalogenated silanesBiochemical engineeringSieve
The invention relates to an anti-abrasive device for a heat exchange tube bundle in a trichlorosilane synthetic furnace. The anti-abrasive device comprises a synthetic furnace heat exchange tube bundle composed of an inner ring heat exchange tube bundle, a middle ring heat exchange tube bundle and an outer ring heat exchange tube bundle, wherein an outer fixing ring is arranged on the outer side of the outer ring heat exchange tube bundle; a middle fixing ring is arranged on the outer side of the middle ring heat exchange tube bundle; an inner fixing ring is arranged on the outer side of the inner ring heat exchange tube bundle; the middle fixing ring is respectively connected with the outer fixing ring and the inner fixing ring through sieve plates; base plates are arranged between the outer side of the outer ring heat exchange tube bundle, between the outer side of the middle ring heat exchange tube bundle and the middle fixing ring, and between the outer side of the inner ring heat exchange tube bundle and the inner fixing ring; 99 porcelain aluminum oxide ceramic clamp sleeves are arranged on the outer surfaces of the middle parts of the inner ring heat exchange tube bundle and the middle ring heat exchange tube bundle; O-shaped seal rings made of chloroprene rubber resin are arranged at two ends of the ceramic clamp sleeves; and ceramic fixing rings are arranged on the O-shaped seal rings. According to the anti-abrasive device, the service life of equipment is prolonged; and the maintenance and replacement frequency and cost of the tube bundles are reduced.
Owner:ASIA SILICON QINGHAI

Vulcanizing dead steam waste heat recovery device

InactiveCN102116583AEnsuring Atmospheric Discharge RequirementsThere is no "pressurization" phenomenonTrickle coolersPlate heat exchangerWater storage tank
The invention discloses a vulcanizing dead steam waste heat recovery device, comprising a dead steam heat exchanger and a water storage tank; the dead steam heat exchanger comprises a shell, a gas discharge hole is arranged at the top end of the shell, a dead steam inlet is arranged at the bottom end of the shell, the water storage tank which is integrally communicated is arranged at the tail end of the bottom of the shell, the water storage tank is connected with a water reservoir by a pipeline, and a water distribution device, a membrane type adsorbing device and a jetting mixing device are sequentially arranged in the inner cavity of the shell from top to bottom, the water distribution device is provided with a first spray head and a second spray head; the membrane type adsorbing device comprises an upper support plate and a lower support plate, a filler is arranged between the upper support plate and the lower support plate, and through holes are arranged on the upper support plate and the lower support plate; a closed circular tube spraying head is used as the jetting mixing device, the first spray head and the second spray head and the closed circular tube spraying head are all provided with cooling water pipes which penetrate to the outside of the shell, and nozzles are distributed on the first spray head, the second spray head and the closed circular tube spraying head. The vulcanizing dead steam waste heat recovery device has the characteristics of small volume and high heat transferring efficiency, and can fully recover heat in the vulcanizing dead steam.
Owner:吴增伟

Card reissue device of card issue machine

The invention provides a card reissue device of a card issue machine. A through groove is formed in one side of a main card box. A supporting plate and a card supporting mechanism are arranged in the main card box. The supporting plate is used for supporting cards. The card supporting mechanism exerts force on the supporting plate in the card outlet direction. A driving mechanism and a stirring block are arranged outside the main card box. The driving mechanism drives the stirring block to move in the longitudinal direction of the main card box. The stirring block penetrates through the through groove to be connected with the supporting plate and can push the supporting plate to move. A card reissue opening is formed in the side, not provided with a card outlet, of the main card box. The card reissue opening is lower than the card outlet. A card reissue sensor used for positioning the supporting plate in the card reissue process is arranged below the card reissue opening. A card reissue box is located outside the main card box. A card issue opening of the card reissue box is higher than the card reissue opening of the main card box. The card issue opening of the card reissue box and the card reissue opening of the main card box are communicated through a guide groove. According to the card reissue device, the card containing capacity of the card storage boxes can be greatly improved, the structure can be simplified, the failure rate can be lowered, and the use reliability of the device can be improved.
Owner:广州市西埃斯智能系统科技有限公司

A pier counterforce closing force system self-balance-type railway cast-in-situ beam static load test apparatus

Provided is a pier counterforce closing force system self-balance-type railway cast-in-situ beam static load test apparatus. The invention relates to a railway cast-in-situ simply-supported box girder static load test pier counterforce closing force system self-balance-type loading device. The device comprises main portions such as a counterforce beam, crossbeams, pull bars, bridge pier holt hoop irons and bridge pier holt hoop iron linking beams. The counterforce beam and the bridge pier holt hoop iron linking beams adopt a hinged construction to transmit forces. The linking beams transmit the counterforce to the bridge pier holt hoop irons, and further transmit the counterforce to a bridge pier through a holt hoop iron frictional force. The crossbeams form a force bearing integral body through the pull bars and the counterforce beam. As for the loading device, the jack is used to jack the crossbeams; the counterforce of the jack is loaded on the tested cast-in-situ beam; the counterforce at the two ends of a beam body are transmitted to the bridge pier through a support base; the counterforce is self-balanced at the bridge pier; the loading device is a force system self-balance system; no base load burden is added in a test process; the advantages such as a simple structure, simple and clear force transmission, convenient assembly, allowing turnover and relatively low cost are realized; requirements of railway cast-in-situ beams at different spans and of different beam types for graded loading and unloading can be satisfied; and relatively high applicability is realized.
Owner:张志国 +1

Cold plate type heat dissipation system and liquid cooling source

The invention relates to a cold plate type heat dissipation system and a liquid cooling source. The cold plate type heat dissipation system comprises a cold plate and the liquid cooling source connected with the cold plate. A heat exchange medium is arranged in the cold plate. The heat dissipation system is provided with a heat generating device at the position close to the cold plate. The liquidcooling source comprises a condenser. The condenser is provided with a gas pipeline and a liquid return pipeline which are used for connecting with the cold plate to form a heat exchange medium circulation circuit. The gas pipeline is provided with a gas path interface for connecting with the gas outlet of the cold plate. The liquid return pipeline is provided with a liquid path interface for connecting with the liquid inlet of the cold plate. A gas-liquid separator is connected in sires on the gas pipeline. The gas storage chamber of the gas-liquid separator is communicated with the gas pipeline. The liquid storage chamber of the gas-liquid separator is connected with the liquid return pipeline through a liquid outlet pipeline. According to the cold plate type heat dissipation system, thecondensation effect of the condenser can be ensured without increasing the load of the condenser so as to have good heat dissipation effect.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD
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