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52results about How to "Meet site needs" patented technology

Negative-pressure container isolating medical unit

The invention discloses a negative-pressure container isolating medical unit. The negative-pressure container isolating medical unit comprises a container body, wherein the container body internally comprises an equipment room and negative-pressure areas; the pressures of the negative-pressure areas are different, and the pressures of the negative-pressure areas are decreased in sequence accordingto the communication sequence; negative-pressure fresh air system equipment, an air exhaust system and a power system are arranged in the equipment room; the negative-pressure fresh air system equipment of the equipment room is communicated with air inlets of the negative-pressure areas; and air outlets of the negative-pressure areas are communicated with the exhaust system of the equipment room.The negative-pressure container isolating medical unit has the characteristic of flexible container transportation on the aspect of the profile, can meet the multimodal transportation requirements and can be used immediately when arriving at the working site. The interior of the container body can be divided into a plurality of negative-pressure areas, the pressures of the areas are sequentiallydecreased, and the areas are divided into different functional areas according to different pressures. It is ensured that indoor air flows in one direction all the time, the final gas is exhausted after being efficiently filtered, and indoor air is prevented from polluting the outdoor air.
Owner:SHENGSHI CONTAINER MANAGEMENT SHANGHAI +1

Construction method for advance grouting and supporting for tunnel partial collapse

The invention discloses a construction method for advance grouting and supporting for tunnel partial collapse, and relates to the technical field of tunnel construction. Based on back pressure backfilling, sleeper stacks are used for further supporting the part which have the quickest and largest deformation and is the most unstable in the initial supporting, so that the fact that the entire steelarch wholly collapses from the arch part and causes the currently stable steel frame on the left side of the line to damage together is avoided, and the collapse range and intensity are controlled; the grouting reinforcement is carried out to the deformed section surrounding rock, so that the aims that the deformation is controlled and the safe replacement of the deformed limit invasion steel frame is guaranteed are achieved, and better supporting effect is realized; a butterfly arch is used to better conform to the practical situation of the site surrounding rock, so that the supporting forthe unstable surrounding rock at the single side deformation section is strengthened, and the fact that the supporting intensity meets the site requirements is guaranteed; the advance supporting measures are adopted to improve the front surrounding rock integrity and self stabilization capability, and the construction safety is guaranteed; different from the traditional manner of total-ring arch replacement, the cost is low, the adaptability is high and the generalizability is high.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD

PC component production system

The invention discloses a PC component production system. The system at least includes mobile die table stations, a mobile mortar storage tank and a burden distribution and vibrating station; the die table stations and the burden distribution and vibrating station are arranged in sequence, the mortar storage tank is arranged at the burden distribution and vibrating station, the die table stations and the burden distribution and vibrating station are all provided with conveying devices, a vibrating device capable of vertically lifting is arranged on the burden distribution and vibrating station, die tables are conveyed from the die table stations to the burden distribution and vibrating station for reinforcing steel bar assembly, burden distribution and vibrating to form PC components, and then the PC components are sent out. The die table stations are used for storing the die tables and serve as a die table warehouse; the burden distribution and vibrating station is used for changing the horizontal arrangement mode of reinforcing steel bar assembly, burden distribution and vibrating of a fixed production line into the vertical arrangement mode, the mobile mortar storage tank is arranged at the burden distribution and vibrating station to complete the steps of reinforcing steel bar assembly, burden distribution and vibrating at one working position of the burden distribution and vibrating station, space occupation is reduced, and the site need is met. Simply by dragging a mobile chassis to a project site through a headstock and then arranging the mobile chassis well, the production can be performed, and the system has the advantages of being timely in production and construction.
Owner:湖南东方红住宅工业有限公司 +1

A concrete surface defect image recognition system and method based on artificial intelligence

The invention belongs to the technical field of construction industry, and discloses a concrete surface defect image recognition system and method based on artificial intelligence. The concrete surface defect image recognition system based on artificial intelligence comprises an intelligent construction site management and control platform, an image acquisition device, concrete surface defect image recognition, a printer and a loudspeaker. The image acquisition device comprises a camera device, an image receiving device, an image data cache (SDRAM), a DSP chip, a receiving/transmitting moduleand a display terminal. On the basis of artificial intelligence concrete surface defect identification under the intelligent construction site management and control platform, the requirement for theprofessional level of detection and evaluation personnel is not high, and cost operation is not high; a large amount of data obtained through image recognition can be effectively utilized and protected, and a model image database is established; human factors can be ignored, concrete defects can be continuously identified on any construction site, the identification accuracy is high, system maintenance is simple, and the maintenance cost is low.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING

Full-rotating dynamic pointing type rotating guide system and guide controlling method

The invention discloses a full-rotating dynamic pointing type rotating guide system and guide controlling method. The full-rotating dynamic pointing type rotating guide system comprises an upper shell body and a lower shell body. A hollow shaft coaxial with the upper shell body is arranged in the upper shell body, one end of the hollow shaft is connected with the upper shell body in a sealing mode, the other end of the hollow shaft is connected with a hollow transmission shaft, and a guide driving mechanism is arranged between the end of the hollow shaft and the upper shell body; the guide driving mechanism, the upper shell body and the hollow shaft form an oil pressure closed cavity, and the pressure of drilling liquid in the oil pressure closed cavity is higher than the pressure of drilling liquid outside the guide driving mechanism; the guide driving mechanism drives a deflection wheel mounted on the transmission shaft in a sleeving mode to conduct lateral deflection; a universal joint used for keeping the pointing direction is mounted on the transmission shaft; a drill is mounted at the end of the transmission shaft; and the deflection wheel conducts lateral deflection under driving of the guide driving mechanism and pushes the inner wall of the lower shell body outward and continuously in an abutting mode, and dynamic continuous lateral force with the direction being perpendicular to the inner wall of the lower shell body is produced, so that the lower shell body drives the drill to rotate by a certain angle along the rotating center of the universal joint to achieve the purpose of dynamic pointing.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Transport equipment steel ladle path compilation method of considering production equipment scheduling plan constraints

The invention discloses a transport equipment steel ladle path compilation method of considering production equipment scheduling plan constraints. According to the method, indexes that a steel ladle transport path is shortest, lifting and laying frequency is minimum, interval time between two successively adjacent steel ladles in the same path is longest, a steel ladle transport temperature drop is minimum, and transport time is minimum are taken as performance indexes, conditions that the loading weight of a crown block on the path is greater than the weight of the steel ladle laden with molten steel, transportable time of the crown block on the path is in a specified range of a furnace charge plan, a path length is in an available path length range determined by the maximum speed of the crown block and the furnace charge plan, and a temperature drop of the transported molten steel in the path does not exceed a specified temperature range of a furnace charge process are taken as constraint conditions, steel ladle transport paths are taken as a decision variable, and a mathematical model of the problem is constructed; the multi-priority-based heuristic compilation method of the steel ladle path is designed; and steel ladle path priority is determined and the available paths are sorted according to importance degrees of the performance indexes on the bases of the layout of a plant area and the furnace charge plan, and the steel ladle transport path is decided.
Owner:SHENYANG INST OF ENG

Energy-saving and heat-preservation type preparation equipment for concrete blocks

The invention discloses energy-saving heat preservation type preparation equipment for concrete blocks. The equipment comprises a bottom plate, wherein a stirring tank is fixedly connected to the side position of the top end of the bottom plate, a discharging pipe is fixedly connected to the bottom end of the stirring tank, a vibration stirring mechanism is fixedly connected to the position, corresponding to one side of the stirring tank, of the top end of the bottom plate, and the vibration stirring mechanism comprises a fixed plate, a rotating rod, a rotating block, a shaking plate, a rotating shaft, a rotating motor, a sliding plate and a limit plate. The equipment is scientific and reasonable in structure and safe and convenient in use; the vibration stirring mechanism is arranged, and the rotating shaft is driven by the rotating motor to rotate, so that the rotating shaft drives a gear to rotate, and the gear is matched with a cam through the arrangement of a sector gear; and an incomplete gear mechanism is formed to drive a moving frame to repeatedly slide, the shaking plate is pushed through cooperation of a rotating plate and rotates and swings along the rotating rod, concrete in a mold is stirred, and the uniformity of the concrete in the mold is improved.
Owner:韦海强

Field intensity test start device

The invention relates to a field intensity test starter comprising a control unit, an operation display unit and a channel machine unit. The control unit is formed by connecting a CPU, a first filter adjusting circuit, a second filter adjusting circuit, an operational amplifier and a power conversion circuit. The CPU of the field intensity test starter generates 218.1Hz sub audio and a FFSK signaling containing site location and emission time, and the sub audio and the signaling are emitted through a PTT control channel machine. The FFSK and the 218.1Hz signals are generated inside a program control CPU, the FFSK signal is filtered and shaped by an active filter C, a digital potentiometer A adjusts the amplitude of the FFSK signal, the 218.1Hz sub audio signal is filtered and shaped by an active filter D, a digital potentiometer B adjusts the amplitude of the 218.1Hz sub audio signal, and the FFSK signal and the 218.1Hz sub audio signal are further adjusted by the operational amplifier. The field intensity test start device has the following beneficial effects: station radios along the way can emit field intensity test carriers under the control of the device at a specified time, and the device can be compatible with standard B and C systems, is simple to operate, convenient to carry and low in cost, and can satisfy field needs.
Owner:TIANJIN 712 COMM & BROADCASTING CO LTD

Identifying and pre-warning method of mine disaster multi-parameter local danger zone

The invention relates to the field of mine dynamic disaster monitoring pre-warning, and aims to provide an identifying and pre-warning method of a mine disaster multi-parameter local danger zone. Theposition and the danger level of the local danger zone can be accurately identified, a mine can be guided in a targeted mode for disaster prevention, and the site requirements for all mines can be met. The pre-warning method comprises the steps that 1, spatial positioning is conducted on mine disaster monitoring points; 2, initial risk indexes I<single point initialization> (I<single point initialization> is larger than or equal to zero and smaller than or equal to one) of all the monitoring points are obtained; 3, conditions of other monitoring points around all the monitoring points are retrieved; 4, the initial risk indexes of the monitoring points are corrected; and 5, the position and the risk level of the local danger zone are obtained. According to the identifying pre-warning methodof the mine disaster multi-parameter local danger zone, the problem that the mine can not be guided in a targeted mode for disaster prevention due to the fact that the position and the risk level ofthe local danger zone can not be identified accurately through an existing pre-warning method is solved.
Owner:兖矿能源集团股份有限公司 +2

A multi-parameter local danger area identification and early warning method for mine disasters

The invention relates to the field of mine dynamic disaster monitoring pre-warning, and aims to provide an identifying and pre-warning method of a mine disaster multi-parameter local danger zone. Theposition and the danger level of the local danger zone can be accurately identified, a mine can be guided in a targeted mode for disaster prevention, and the site requirements for all mines can be met. The pre-warning method comprises the steps that 1, spatial positioning is conducted on mine disaster monitoring points; 2, initial risk indexes I<single point initialization> (I<single point initialization> is larger than or equal to zero and smaller than or equal to one) of all the monitoring points are obtained; 3, conditions of other monitoring points around all the monitoring points are retrieved; 4, the initial risk indexes of the monitoring points are corrected; and 5, the position and the risk level of the local danger zone are obtained. According to the identifying pre-warning methodof the mine disaster multi-parameter local danger zone, the problem that the mine can not be guided in a targeted mode for disaster prevention due to the fact that the position and the risk level ofthe local danger zone can not be identified accurately through an existing pre-warning method is solved.
Owner:兖矿能源集团股份有限公司 +2

Power supply remote control system

The invention relates to the field of automatic control, and discloses a power supply remote control system, which comprises a main control module, a controlled module, a power supply control box andcontrolled equipment, the main control module, the controlled module, the power supply control box and the controlled equipment are connected in sequence; the main control module is used for detectingthe running state of the controlled equipment in real time and displaying the information of the controlled equipment in a graphical visual human-computer interface; the controlled module is used forreceiving a control command of the main control module and converting the control command into an operation command which can be recognized by the power supply control box; and the power supply control box comprises a serial port controller and a direct-current relay, and the serial port controller controls on-off of a power supply of the controlled equipment through the direct-current relay. Theremote control system at least has the following beneficial effects that the on-off of the power supply of the controlled equipment can be detected and controlled on line, the remote operation of thecontrolled equipment is realized, the manpower is saved, and the efficiency is improved.
Owner:航天银山电气有限公司

A sample dilution device and reagent card for the detection of novel coronavirus antibody

The invention provides a sample diluting device and a reagent card for detecting a novel coronavirus antibody. The diluting device comprises a diluent sample adding bottle, wherein the diluent sampleadding bottle comprises a first dilution cavity and a second dilution cavity, which are arranged up and down and are separated by an inclined plate; the top of the first dilution cavity is provided with a sample adding hole for inserting a sample collection tube, one side of the high end of the inclined plate is provided with a groove which is through up and down, and the groove is located right below the sample adding hole; a liquid outlet is formed in the bottom of the second diluting cavity. The sample diluting device can perform gradient high-multiple dilution on antibodies in samples, avoids barb phenomenon caused by excessive antibodies, and is suitable for rapid screening and detection of large quantities of novel coronavirus samples; the reagent card not only can be used for typingdetection of IgM and IgG antibodies in blood of a virus infected patient, but also can be used for detection of total antibodies of the novel coronavirus in the blood, so that the detection rate of an early infected patient can be increased.
Owner:天津中新科炬生物制药股份有限公司

Cut-off valve for natural gas wellhead

ActiveCN107724996AAffect usageTo achieve the effect of blocking and partitioningWell/borehole valve arrangementsSealing/packingEngineeringValve stem
The invention discloses a cut-off valve for a natural gas wellhead. The cut-off valve comprises a valve body. The valve body is provided with transversely penetrated flow passages and a vertically arranged valve chamber communicated with the top of the valve body. The valve chamber divides the flow passages into an inlet flow passage and an outlet flow passage, and the valve chamber is provided with a vertically movable valve plate. The upper end of the valve plate is connected to a valve stem, the upper end of the valve stem protrudes from the top of the valve chamber, a seal packing is arranged between the valve stem and the valve body, the inlet flow passage is communicated with the upper portion of the valve chamber through an inlet auxiliary flow passage, and the valve body is provided with an auxiliary flow passage stopper capable of closing or opening the inlet auxiliary flow passage. According to the cut-off valve for the natural gas wellhead, through the modification of the valve body and the valve plate structure, the auxiliary flow passage stopper opens the inlet auxiliary flow passage when the valve plate is closed, the natural gas with a certain gas pressure enters theupper portion of the valve chamber through the inlet auxiliary flow passage, and the natural gas becomes the power for driving the valve plate to move downward so that the valve plate is stably and firmly pressed at the bottom of the valve chamber and the valve can better achieve the effect of blocking and meet the on-site requirements.
Owner:CHINA NAT OFFSHORE OIL CORP +1

A sliding sleeve switch device for segmental fracturing

The invention relates to a segmented fracturing device in the field of petroleum machinery, in particular to a segmented fracturing sliding sleeve switch device. Including upper joint, upper connecting sleeve, central tube, upper fixing sleeve, spring, upper inner sliding sleeve, upper sliding support, connecting rod, sliding sleeve switch claw, pin, lower sliding support, lower fixing sleeve, lower inner sliding sleeve , the lower connecting sleeve and the lower joint; the upper end of the upper joint is connected to the oil pipe, the lower end of the upper joint is threadedly connected with the upper end of the upper connecting sleeve, the lower end of the upper connecting sleeve is threaded with the upper end of the upper fixing sleeve, and the right end of the upper fixing sleeve is arranged to slide support. The principle of the invention is to store and release the elastic potential energy of the spring under the action of high-pressure liquid to realize the radial extension and contraction of the sliding sleeve switch claw, and complete the opening and closing of the fracturing sliding sleeve. Beneficial effects: the present invention has the advantages of simple structure, convenient operation, stable and reliable operation, and effectively meets the on-site requirements of multi-stage sliding sleeve open-hole staged fracturing of horizontal wells in various working conditions, and realizes full fracturing development of reservoirs.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Icing preventing and ice melting method for high speed railway and system for realizing method

The invention discloses an icing preventing and ice melting method for a high speed railway. The method comprises the following steps of: 1, establishing the icing preventing and ice melting loop of a catenary; 2, adjusting the impedance of the icing preventing and ice melting loop and controlling icing preventing and ice melting current to prevent contact lines and carrier cables from being burnt by the excessive current of the catenary; and 3, implementing icing preventing and ice melting control. The invention also comprises an icing preventing and ice melting system for realizing the method. The system comprises the icing preventing and ice melting loop and an icing preventing and ice melting device (1). The invention complies with the icing preventing and ice melting combined principle of primarily preventing icing by using alternating current on line and secondarily melting ice off line, and grounding resistors or inducers are additionally connected at a power substation or a section post, so that certain alternating current passes through the catenary, icing is prevented by heat which is generated by the current, and the technical problem that a mechanical deicing mode is not suitable for the high speed railway any more is solved.
Owner:CHENGDU SOUTHWEST JIAOTONG UNIV XUJI ELECTRIC +1

Station control box interface splitter

The invention relates to a station control box interface splitter, which comprises a 485 protocol processor A, a 485 protocol processor B, a splitter CPU, a relay, an operational amplifier and a switching circuit. The splitter CPU is connected with the 485 protocol processor A, the 485 protocol processor B, the relay and the switching circuit respectively; a 485 serial data port is formed on the splitter CPU; a 485 serial data port I is formed on the 485 protocol processor A; a 485 serial data port II is formed on the 485 protocol processor B; an S1 pin of the relay is connected with an output interface of an MIC audio signal, an A pin of the relay is connected with an input interface I of the MIC audio signal and a B pin of the relay is connected with an input interface II of the MIC audio signal; an AF audio signal input interface, an AF audio output interface I and an AF audio output interface II are formed on the operational amplifier; and the switching circuit is provided with a DC 13.8V power input interface, a power output interface I and a power output interface II. The station control box interface splitter has the advantages of expanding a station control box interface, increasing the number of external station control boxes, making a plurality of attendants share the same radio station, reducing the system cost and meeting the on-site demand.
Owner:天津七一二移动通信有限公司

Leachate system based on domestic sewage and treatment process of system

The invention discloses a leachate system based on domestic sewage. The system comprises a pretreatment area, a pretreatment tank and a sludge treatment device; the pretreatment tank comprises a grating desilting basin, an oil separation tank, a sewage tank, a sludge tank and a clean water basin which are connected in sequence; the pretreatment area comprises a demulsification reactor, an electro-Fenton reactor, a coagulation reactor and a sewage filter; the demulsification reactor comprises a stirring machine and a shearing dispersion disc, and the shearing dispersion disc is connected with the stirring machine through a stirring shaft and is driven by the stirring machine to rotate; and the electro-Fenton reactor comprises an anode iron plate and a cathode graphite plate which are oppositely arranged. The invention further discloses a purification process method adopting the leachate system. The sewage treatment facility disclosed by the invention has relatively high flexibility and adjustability in operation so as to adapt to the change of water quality and water quantity. Meanwhile, by means of the nine-stage sewage treatment process, the set purification requirement can be met, the occupied space of water storage and equipment is effectively reduced in cooperation with corresponding equipment, and the whole device can be reduced to be in the size of a container.
Owner:广东家宝城市管理科技有限公司

Anti-lifting combined type fixed slide way of sintering machine and manufacturing method of anti-lifting combined type fixed slide way

PendingCN114322572APrevent from liftingAvoid damageCharge manipulationSlide plateComposite plate
The invention discloses a sintering machine anti-lifting combined type fixed slideway and a manufacturing method thereof.The sintering machine anti-lifting combined type fixed slideway comprises a first slideway, a second slideway, a third slideway and a fourth slideway, the first slideway is provided with a first composite plate composed of a first wear-resisting plate and a first steel plate, and the first wear-resisting plate and the first steel plate are connected through positioning fastening bolts; the first end of the first composite plate is provided with an anti-lifting structure, the second end of the first composite plate is provided with a chamfer, and the first composite plate is provided with an oil hole and a sealing plate fixing hole; an anti-lifting structure is designed on the first slide way, meanwhile, the first slide way is fully welded to the slide way base, chamfering treatment is also carried out on edges and corners of the second slide way and the third slide way on the advancing stress face of the trolley, and damage caused by an elastic sliding plate of the sintering machine trolley is effectively prevented; the fixed slide way adopts a double-metal-plate structural design, a wear-resisting plate is high in hardness and meets the process requirement, however, due to the fact that the hardness is too high and flexibility is lacked, the requirement for flexibility is just met when a steel plate is used as a base plate, and the design is the original intention of the double-layer composite plate.
Owner:SD STEEL RIZHAO CO LTD

Material stacking system and control method thereof

PendingCN114633997ASimple structureConvenient and reliable driving operationStacking articlesWinding mechanismsClassical mechanicsElectric machinery
The invention provides a material stacking system applied to the technical field of material stacking and further relates to a material stacking control method, a rack (2) and a horizontal material receiving belt conveyor (16) of the material stacking system are installed on a platform (17), a steel wire rope reel (1), a movable sliding table assembly (5) and an accompanying trolley (9) are installed on the rack (2), a speed reduction motor (4) is connected with the steel wire rope reel (1), and the movable sliding table assembly (5) is connected with the accompanying trolley (9). The robot (6) is fixed on the movable sliding table assembly (5); the grabbing roller line (8) and the before-grabbing transition belt conveyor (15) are fixed to the accompanying trolley (9), the accompanying trolley (9) is connected with the movable sliding table assembly (5), and the steel wire rope (3) is wound around the steel wire rope winding drum (1). According to the material stacking system and the control method thereof, the structure is simple, driving operation can be conveniently and reliably achieved, meanwhile, cost is obviously reduced, abrasion is not likely to happen, replacement and maintenance are easy, noise is low, and the field requirement is met.
Owner:安徽海螺中南智能机器人有限责任公司 +1
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