439results about How to "Guaranteed traffic" patented technology

A method and an apparatus for monitoring and controlling flows in medical equipment including an anesthetic machine and a ventilator for influencing a patient's respiratory system are disclosed. The apparatus comprises a microprocessor and an airway system comprising drive gas conduits provided with an inhalation valve (2) and an exhalation valve (5) for gas discharging as well as a ventilator end flow sensor (3) for measuring the introduced or discharged drive gas flow through the valves. The airway system also comprises patient end breathing tubing in which a patient end flow sensor (11) for measuring the patient's inspired and expired gas flow is provided. By comparing the measured values of the two flow sensors against the characteristic curve of the inhalation valve (2), the microprocessor can judge the operation states and accuracy of the respective flow sensors and the inhalation valve (2).

A machining device based on a non-Newtonian fluid shear thickening mechanism polishing method comprises a workbench, a polishing tool system, an abrasive fluid circulation device and a computer control module, wherein the polishing tool system is installed on a portal frame of the workbench, an inlet of the abrasive fluid circulation device is communicated with an abrasive backflow opening in the workbench, and the workbench, the polishing tool system and the abrasive fluid circulation device are respectively connected with the computer control module. The machining device has the advantages that the application range is wide, the size of machined workpieces is not limited, the structure of the device is simple, the device is controlled easily, a computer controls the operation track of the device, the polishing process of non-Newtonian fluid abrasive fluid and the surfaces of the workpieces can be controlled effectively, a non-Newtonian fluid abrasive fluid circulation system is adopted, and the functions of removing abrasive dust, purifying, recycling, transporting and storing the abrasive fluid, and adjusting performance are achieved.

The invention discloses a road drainage system comprising a road surface drainage part and a road side drainage part, wherein the road surface drainage part is orderly provided with a base layer, a waterproof layer and a non-watertight layer from bottom to top; the upper part of the waterproof layer is provided with a road surface drainage groove; the road side drainage part comprises non-watertight curbstones and road side drainage grooves; the non-watertight curbstones are arranged on both sides of a road and adjacent to the road surface drainage part; the road side drainage grooves are arranged under the non-watertight curbstones; the non-watertight curbstone comprises a non-watertight surface layer and a non-watertight strengthening layer; the non-watertight surface layer contains non-watertight material; the non-watertight strengthening layer is adjacent to the inner surface of the non-watertight surface layer and a cavity is arranged in the non-watertight strengthening layer. The road drainage system is provided with the road surface drainage part and the road side drainage part; the road side drainage part is provided with a guide cavity; and the rain water is drained in time after quickly penetrating through the thinner non-watertight surface layer, thereby ensuring the normal traffic of vehicles and the passerby traffic.

The invention discloses a laser processing method for a steel sieve tube slit. One end point of one long edge of the slit is used an initial point. The method comprises the following steps of: perforating a hole at the initial point of a cut by using pulse laser, and then finishing the cutting of the whole slit from the initial point by using continuous laser. During cutting, oxygen is used as an auxiliary gas, the metal at a cutting point is further heated by using reaction heat released by the reaction of the oxygen and the molten iron at the cutting point, meanwhile the molten iron is changed into ferroferric oxide with good liquidity by using chemical reaction, and the ferroferric oxide is blown away the cutting point by using airflow so as to ensure continuous cutting. The processing method solves the problems of irregular slit shape, slag adhesion at the cut and oblique blowing trace in the conventional laser cut sieve tube slit.

Abnormal (i.e., emergency) shutdown of a chemical reaction process is accomplished by a method of safely operating a chemical reaction process that includes the steps of detecting adverse conditions that can affect the reaction process, minimizing the reaction of reactants, and maintaining The flow of material in the reaction zone of the process to displace the reaction mixture from the reaction zone. The flow of material is maintained for a period of time to displace substantially all of the reaction mixture from the reaction zone, thereby flushing the reaction zone. The reaction mixture can then be flushed into an auxiliary vessel, such as an absorption column.

The invention discloses a spray tube electrospinning head, and belongs to the field of electrospinning. The spray tube electrospinning head comprises an electrospinning head body, wherein a solution connecting portion is arranged on the tail portion of the electrospinning head body, a horn-shaped spinning nozzle, a polarization throat port and a solution chamber hole are formed in the electrospinning head body in sequence from top to bottom, and are communicated with one another, the inner wall face of the spinning nozzle is a circular-arc curved surface which gradually expands outwards, the port diameter of the polarization throat port is smaller than the hole diameter of the solution chamber hole, the outer wall of the head portion of the electrospinning head body is of a cone shape, and the diameter of the cone gradually decreases outwards. The spray tube electrospinning head can increase the forming speed of a Taylor cone, improve the velocity of a solution when the solution passes through the spray tube electrospinning head, and is better in electric field directivity.

The invention discloses a method for energy conservation for a wireless access network. The method includes the steps that S1, in the stage that network traffic is reduced, a base station with the minimum network traffic is selected as a closed base station; S2, a compensation base station combination of the closed base station is selected through a selecting method for compensation base station combination; S3, if the closed base station needs to be closed, compensation is carried out on the closed base station, and the closed base station enters into a dormant state; S4, in the stage that the network traffic is increased, the network traffic of compensation base stations in an area compensation base station set is forecast, and a compensation base station with the maximum forecast network traffic is selected as a preselected base station; S5, when the forecast network traffic of the preselected base station exceeds maximum network traffic loads of the preselected base station, the closed base station compensated by the preselected base station is started. On the premise of ensuring the network traffic, the purpose of the energy conversation is achieved to the maximum, and the energy conversation is optimized as far as possible while interference is reduced.

The invention discloses a driver risk preference behavior diagnosis system. The driver risk preference behavior diagnosis system comprises a scene module, a driving simulator and a diagnosis module, wherein the scene module is used for setting multiple design scenes of a specified task object in a driving task normal form; the driving simulator is used for carrying out simulation driving according to the specified task object; the diagnosis module is used for measuring the decision result, the behavior feature index and vehicle dynamics parameters of a driver under the driving task normal form and evaluating the internal risk preference of the driver according to the measurement result to generate a diagnosis report. The diagnosis system is based on the simulation driving task normal form of a virtual reality technology, the driving simulator serves as an evaluation platform, the internal risk preference of the driver is diagnosed by measuring the driver decision behavior and the vehicle dynamics indexes under the standard driving task normal format, the diagnosis reliability is improved, and the road traffic safety is better ensured.

The invention discloses a construction method for integrally pouring inverted arch concrete by matching a trestle with a top formwork, which belongs to the construction method for pouring inverted arches concrete of tunnels and relates to the manufacture and utilization of top formworks and trestles. The construction method for integrally pouring inverted arch concrete by matching the trestle with the top formwork includes the steps of (1) manufacturing a top formwork structure; (2) manufacturing a trestle structure; (3) preparing: measurement locating, formwork locating, concreting and trestle displacing and positioning. The construction method for integrally pouring inverted arch concrete by matching the trestle with the top formwork is easy, capable of guaranteeing the concrete to be shaped as designed during the inverted arch concrete pouring process, and effectively guaranteeing the tunnel to be normally open to traffic during the inverted arch construction process.

The invention discloses a diesel and methanol dual-fuel system of an internal combustion locomotive engine and a method. The dual-fuel system comprises a diesel engine and further comprises a methanolsupplying system, a methanol sprayer assembly and a methanol spraying control system; the methanol supplying system comprises a methanol tank, a methanol filter, a methanol pump, a methanol flowmeter, a distribution box and a methanol pressure-limiting valve, and the methanol tank is sequentially connected with the methanol pump, the methanol flowmeter and the distribution box through pipelines;the distribution box comprises an input end and a plurality of output ends, and each output end is sequentially connected with the methanol pressure-limiting valve and the methanol sprayer assembly through pipelines; the methanol sprayer assembly comprises a methanol rail, a methanol rail pressing plate, a methanol spraying nozzle and a gas inlet bent pipe; and the methanol spraying control systemcomprises a methanol electronic control unit, a control wire harness, an upper computer, a rotating speed sensor, a coolant temperature sensor, a throttle position sensor, a methanol liquid level meter and a fault alarm device.

The invention discloses an annular tooth seam supersonic jetting nozzle. An annular pipe airflow channel is composed of a hollow core pipe and an outer pipe with the variable cross-section and provided with a contraction acceleration segment with the annular cross section and an expanding acceleration segment with the annular cross section. A transition segment of an annular tooth cross section is connected with the contraction segment and the expanding segment, gas of the certain pressure and flow can be accelerated to be at supersonic speed, and supersonic jet is formed at an outlet of the nozzle. When the annular tooth seam supersonic jetting nozzle is applied to an RH vacuum refining furnace top gun, oxygen blowing decarbonization, oxygen blowing temperature increasing and powder spraying desulfuration can be achieved for molten steel inside a vacuum chamber on the vacuum condition, and gas is blown to the vacuum chamber on the non-vacuum condition for baking and heating to remove cold steel; when the annular tooth seam supersonic jetting nozzle is applied to an electric furnace wall gun, supersonic airflow can cut scraped steel and spray carbon powder to form foaming slags; when the annular tooth seam supersonic jetting nozzle is applied to a blast furnace, long-distance pulverized coal spraying can be achieved. When the annular tooth seam supersonic jetting nozzle is applied to an industrial heating furnace, high-power super-long flame heating can be achieved; when the annular tooth seam supersonic jetting nozzle is applied to a steam jetting vacuum pump, high-flow air exhaust can be achieved.

The invention discloses a corrugation self-check double-protection compensator. The compensator comprises an operating corrugated pipe, both ends of the operating corrugated pipe are provided with aninlet end pipe and an outlet end pipe respectively, a draft tube and an external protection tube are provided in and outside the corrugated pipe respectively. The compensator is characterized in that:a connection flange is welded between the operating corrugated pipe and the outlet end pipe, a protective corrugated pipe is connected between the connection flange and the external protection tube,and the protective corrugated pipe is sheathed on the outlet end pipe, and the external protection tube is fixedly provided with a leak detection device. The compensator has the advantages of being capable of ensuring flow quantity and flow rate of media, the protective corrugated pipe act sealing effect to protect the operating corrugated pipe from corrosion by external sewage and impurities, thus prolonging service life of the compensator; the compensate can continue work even the operating corrugated pipe present leakage, thus providing double protection; the protective corrugated pipe hasprotection and compensation effect, thus being capable of avoiding environment hazards caused by media leakage, so the compensator is especially applicable to pipes for conveying toxic and harmful dangerous media.

The invention discloses a deicing and snow melting system utilizing terrestrial heat in a tunnel. The system comprises a heat pump unit, a heat supply pipe and heat exchange tubes, wherein the heat supply pipe and the heat exchange tubes are respectively communicated with the heat pump unit so as to form two circulating pipeline independent from each other; fluid in the heat supply pipe and the heat exchange tubes provides circulating power by virtue of the heat pump unit, and heat exchange is performed by virtue of the heat pump unit. According to the deicing and snow melting system utilizing terrestrial heat in the tunnel disclosed by the invention, rich geothermal resources in a high-temperature geothermal area can be utilized, and the terrestrial heat energy in the tunnel is transferred to the ground by virtue of the pipeline, so that the aims of actively melting snow and deicing are achieved. The snows and ice on the road surface in spring and winter can be eliminated, the road riding safety problem is improved, the asphalt pavement service quality is improved, the traffic accident rate and economic losses are reduced, the life and property safety of the masses can be protected, the service performance of the asphalt pavement can be maintained, the service life is prolonged, the environmental hazards caused by use of chlorine deicers are reduced, good economical benefits are achieved, and the renewable and sustainable energy, namely, the terrestrial heat energy is reasonably used.

The invention relates to a welding method of a vertically brazed joint of a stainless steel conduit. The method comprises the following steps: 1) preparation of the surface of the joint before brazing; 2) preparation of a brazing filler metal ring; 3) preparation of a sleeve; 4) assembling of parts; and 5) welding. In the welding method of the vertically brazed joint of the stainless steel conduit mainly, a method of replenishing the brazing filler metal ring for welding over the joint before welding is adopted; and the method can be used for reducing the defects of the vertically brazed joint and improving the quality of products.

The invention discloses a heat supply secondary pipe network distributed balance control system and a control method thereof. The system comprises a front-end control system and a tail-end control system and is provided with a master control machine and microcontrollers; and the system is characterized in that: the master control machine is connected with a plurality of microcontrollers through wireless communication; a first pressure transmitter, a second pressure transmitter, a header pipe flowmeter, a variable frequency pump, an electric control valve and a general packet radio service (GPRS) module are connected to the master control machine respectively; and a third pressure transmitter, a fourth pressure transmitter, a branch pipe flowmeter, a balancing control valve and a GPRS module are connected to the microcontrollers respectively. The invention has the advantages that: the pressure difference and flow of a pipe network in each building can be detected, pressure difference between an input end and an output end of the pipe network in each building is guaranteed, pressure difference between a heat supply header pipe and a backflow header pipe is guaranteed, and flow balance between the heat supply header pipe and a heat supply branch pipe is monitored simultaneously; and therefore, the secondary pipe network is operated stably, pipelines are prevented from vibrating, and the service life of the pipelines is prolonged.

The invention provides a circulating method for a cold regenerated catalyst and a catalytic cracking reaction regenerating system. The catalytic cracking reaction regenerating system comprises a hoisting pipe reactor, a pre-hoisting section, a regenerator, a heater and a gas-solid annular flow mixing stripper, wherein the gas-solid annular flow mixing stripper is used for mixing a first solid grain and a second solid grain at different temperatures during a regenerating form fluid catalytic cracking process and stripping the smoke and air taken by the solid grains after being mixed; the first solid grain is a low-temperature catalyst or low-temperature to-be-generated agent; and the second solid grain is a high-temperature catalyst. The circulating method for the cold regenerated catalyst comprises the following steps of: mixing and exchanging heat of the first solid grain from the heater and the second solid grain from the regenerator in the gas-solid annular flow mixing stripper, and meanwhile, stripping the taken smoke and air, forming the mixed catalyst and then entering into the pre-hoisting section.

The invention relates to an ultra-distance steam conveying pipeline. The ultra-distance steam conveying pipeline comprises a superheated steam section and a superheated/saturated steam section. The superheated steam section and the superheated/saturated steam section each comprise an overhead steam pipeline and a buried steam pipeline. The superheated steam section comprises a steam pipeline body, multiple insulating layers, multiple reflecting layers, a nanometer air cushion thermal insulating layer, a damp-proof layer and a protective layer (or an air layer or an outer steel pipe). The superheated/saturated steam section comprises a steam pipeline body, a heat storage layer, multiple insulating layers, multiple reflecting layers, a nanometer air cushion thermal insulating layer, a damp-proof layer and a protective layer (or an air layer and an outer steel pipe). The ultra-distance steam conveying pipeline further comprises a fixed seat matched with the overhead steam pipeline. The steam pipe conveying distance can be effectively increased, and the conveying distance ranges from 40 km to 50 km. The pressure drop, temperature drop and quality losses in the conveying process are reduced, and the quality losses are only 0-1%. Thus, the steam production cost is reduced, energy is saved, and waste gas emissions are reduced.

The invention discloses a method and a device for producing high temperature air for quick cooling of a large turbine. The device comprises a gas conveying device, a burning device, an air inducing device and a control system, wherein a temperature thermocouple of the control system is arranged in a high temperature air chamber; a programmable controller is respectively connected with a gas regulating valve and the temperature thermocouple; and another programmable controller is respectively connected with a second flow meter, a third flow meter and an air supply regulating valve. The method measures the temperature of the high temperature air chamber by measuring the thermocouple, the signal of the measured temperature is transmitted into the programmable controller, and the temperature setting value of the programmable controller is determined by the actually measured temperature value of the turbine after considering the heat stress. In the invention, the primary fuel of gas is used as an energy source for producing high temperature air for quick cooling of the large turbine, thus the energy source is saved, and the power is large; and meanwhile, the temperature and the flow rate can be controlled easily, thereby meeting the requirements of the temperature and the flow rate of the air for quick cooling after the large turbine shuts down.

The invention provides a wind, solar and bioenergy storage, supply, charging and gasification intelligence transport system. The system comprises a perovskite power generation film and a wind generating set. A moving vehicle runs on a traffic road, and a vehicle-mounted automatic telescopic intelligent pantograph is fixed to the top of the moving vehicle through an insulating terminal and screws.According to the beneficial effects of the system, photovoltaic ceilings are erected on roads and farmlands at two sides of the road to reasonably utilize the space, and the photovoltaic power generation can be carried out. Rain and snow can be shielded, and normal driving in severe weather can be guaranteed. An electric vehicle adopts a telescopic pantograph to supply power in real time, so thatthe driving time of the vehicle can be prolonged. The cruising ability is improved. The convenience is provided for unmanned aerial vehicle delivery. The long-distance delivery of the electric unmanned aerial vehicle is facilitated. The great development of the unmanned aerial vehicle logistics transportation industry is promoted. Thewaste of non-renewable resources is reduced, and the energy-saving and environment-friendly development is achieved. The photovoltaic power generation, the wind power generation, the hydrogen fuel power generation, the biogas power generation and the biomass powergeneration are combined. The energy can be reasonably utilized, and the energy utilization rate is increased.

The invention provides a sponge city ecological municipal road, and belongs to the technical field of sponge cities. The sponge city ecological municipal road includes a sidewalk, permeable granite step bricks, an emergency permeable hole, a permeable concrete base layer, a permeable asphalt layer, a water diversion slope bearing layer, a water diversion slope surface, a bearing substrate, a watergathering channel, a channel side wall, a sand-gravel layer, a filtering layer, a geotechnical cloth filtering layer, a gravel filtering layer, an activated carbon filtering layer, a rainwater well,a drainage well cover, a water storage tank, an emergency water diversion pipe, a lawn, soil, a permeable sand layer, a water pumping pipe, a water pump, a road base layer, a municipal pipe network, an irrigation water pipe, an atomizer, a collecting pipe, a closed pipe, an excess preventing pipe, a channel bottom wall and kerb. The sponge city ecological municipal road has the advantages and effects that accumulated water on the road can be timely recycled to the underground for discharging and storing so as to ensure normal passing of the road in rainy days, the water quality is improved tothe maximum extent, and the sponge city ecological municipal road is of great significance to realize the goal of water ecological restoration.

The invention relates to the field of concrete U-shaped beam prefabricating construction, in particular to a large-span U-shaped beam prefabricating construction technology capable of realizing pre-tensioned and post-tensioned prestressed combined construction. The technology mainly includes the following steps that bottom molds and side molds of a U-shaped beam are mounted and are bound into a steel reinforcement framework, impurities are cleaned, a support plate is mounted, collapse-proof embedded pieces are mounted, the steel reinforcement framework is hung, the steel reinforcement framework, steel strands and corrugated pipes are adjusted, end formworks are mounted, the prestress is adjusted preliminarily, embedded conduits are mounted, embedded pieces are mounted, overall tensioning is performed with the final tensioning stress, concrete pouring is performed, natural curing is performed, inner molds are dismounted, the side molds are loosened, the single end of a beam body is released synchronously, the steel strands are cut off mechanically, the end formworks are dismounted, the steel strands are bundled with the post-tensioning method, post-tensioned prestressed tensioning is performed, anchor sealing and beam storage are performed, and hole grouting, curing and the like are performed. According to the technology, a pre-tensioned and post-tensioned combined prestressed bridge is adopted, the stress and the deflection of the U-shaped beam and the control on cracks meet requirements, the prestressed steel reinforcement quantity and the equipment and the personnel investment are saved, the construction period is shortened, and the economic benefit is obtained.

The invention discloses a method for treating village sewage and a specific device thereof. The specific device comprises a sump pump and a multifunctional deflection processing module connected with the sump pump. The multifunctional deflection processing module consists of three anaerobic units which are named Pool 1-3, two aerobic units which are named Pool 4-5, and a depositing unit named Pool 6; the pools are connected by pipelines. The anaerobic units are all provided with vent holes; the aerobic units are both provided with suspended upper and lower metal meshes; compartments between the metal meshes are filled with fillings; the lower layer of metal mesh is provided with a gas distributing hole which is connected with an aeration machine. The detailed operation steps of the method are described in the specification. The method and the specific device of the invention integrates physical processing techniques including depositing, filtering and the like, and biochemical processing techniques including anaerobic oxidation, aerobic oxidation and the like, thereby degrading organic substances in the sewage, fixing inorganic salt and reducing nutriment like nitrogen and phosphorus. The method and the specific device have the advantages of large hydraulic load and excellent processed water quality. Therefore, the method and the specific device are especially suited to national conditions of our country.