54results about How to "Avoid cost input" patented technology

A flue gas desulphurization denitration method adopting two activated-carbon adsorption columns (1, 2) in series connection and comprising a flue gas temperature control apparatus and a device therefor are provided. The method includes I) a step of flue gas temperature control and II) a step of desulphurization and denitration, wherein the step of flue gas temperature control comprises (1) a step of subjecting flue gas to first time of cooling by feeding cold air into a flue conveying high-temperature flue gas to activated-carbon adsorption columns from a cold-air inlet at an upstream position (P1) of the flue, (2) spraying cooling water or cold water mist into the flue gas in the flue from a process water spray nozzle at the downstream position (P2) of the position (P1) from which the cold air is fed, and allowing the flue gas to flow along the flue to the adsorption columns, and (3) feeding diluted ammonia gas into the flue gas in the adsorption columns after the flue gas is fed into gas feeding chambers of the adsorption columns. The temperature of the flue gas fed into the adsorption columns is controlled by mixing with the cold air and spraying water. The two activated-carbon adsorption columns (1, 2) in series connection are adopted to significantly increase the denitration efficiency of the device.

The invention discloses a flyback convertor controlled by a self-oscillation start output end, which comprises a flyback power conversion main circuit, a start oscillation circuit, a cut-off device and a PWM control circuit. The start oscillation circuit is connected with an MOS main switch tube grid in the flyback power conversion main circuit, and the cut-off device is connected in a return circuit of the start oscillation circuit. The PWM control circuit outputs two paths of signals, one path of trigger signal is connected to the cut-off control end of the cut-off device for controlling the cut-off of the start oscillation circuit, and the other path of PWM drive signal is connected to the MOS main switch tube grid in the flyback power conversion main circuit. The invention has the following characteristics that the flyback convertor does not need an extra auxiliary power supply to supply power to the PWM control circuit, easily realizes the control mode of synchronous rectification, and also easily realizes various protective circuits, and additional functions such as parallel current equalization, and so on; and the band width of a control loop is not limited to make the dynamic performance of the circuit better.

The invention discloses a multi-path input alternating/direct current (AC/DC) hybrid power supply. The output end of a main power supply is connected with a rectifying bridge; the output end of each spare power supply is respectively connected with a rectifying bridge; the output ends of all the rectifying bridges are connected in parallel, wherein the positive output ends of the rectifying bridge are connected with the input end of a live line of an AC/DC power converter; and the negative output ends of the rectifying bridge are connected with the input end of a zero line of the AC/DC power converter. The power supply has the advantages of needing no additional switcher to control the switching of the main power supply and the spare power supply, realizing the power supply with high cost performance, reducing conversion time, realizing uninterrupted power supply, strengthening the reliability of the power supply, realizing hot spare function and leading the main power supply and the spare power supply to have dual effects; a mode with a plurality of rectifying bridges is adopted to expand the input voltage range; the input voltage can be alternating current with different frequencies and different phases, or one alternating current, one direct current, and even the two are direct current input.

A flue gas desulphurization denitration method including flue gas temperature control in an activated-carbon adsorption column and a device therefor are provided. The method includes I) a step of flue gas temperature control and II) a step of desulphurization and denitration, wherein the step of flue gas temperature control comprises (1) a step of subjecting flue gas to first time of cooling by feeding cold air into a flue conveying high-temperature flue gas to the activated-carbon adsorption column from a cold-air inlet at an upstream position (P1) of the flue, and (2) spraying cooling water or cold water mist into the flue gas in the flue from a process water spray nozzle at the downstream position (P2) of the position (P1) from which the cold air is fed, adjusting the temperature of the flue gas fed into the adsorption column to be in a preset range of T3, for example, the T3 ranges from 105-150 DEG C. The temperature of the flue gas fed into the adsorption column is controlled by mixing with the cold air and spraying water.

A flue gas desulphurization denitration method adopting ammonia-containing wastewater for flue gas temperature control and a device therefor are provided. The method includes I) a step of flue gas temperature control and II) a step of desulphurization and denitration, wherein the step of flue gas temperature control comprises (1) a step of subjecting flue gas to first time of cooling by feeding cold air into a flue conveying high-temperature flue gas to an activated-carbon adsorption column from a cold-air inlet at an upstream position (P1) of the flue, and (2) spraying the ammonia-containing wastewater into the flue gas in the flue from a process water spray nozzle at the downstream position (P2) of the position (P1) from which the cold air is fed, adjusting the temperature of the flue gas fed into the adsorption column to be in a preset range of T3, for example, the T3 ranges from 100-150 DEG C. The temperature of the flue gas fed into the adsorption column is controlled by mixing with the cold air and spraying water.

The invention provides a rainwater storage irrigation system for green belts under viaducts. The rainwater storage irrigation system comprises a water storage tank, a fresh rain primary filtration and separation device, a photovoltaic pump, an energy supply device, a spray head and a microcomputer centralized control box, wherein the fresh rain primary filtration and separation device comprises a filter screen, a base, a fresh rain separation water tank, a drain pipe and a first overflow pipe; the filter screen, the base and the fresh rain separation water tank are assembled in sequence from top to bottom; the first overflow pipe is communicated with the water storage tank; the photovoltaic pump is arranged in the water storage tank; the energy supply device is used for providing power for the photovoltaic pump, and comprises a solar photovoltaic plate and an energy storage inverter; the spray head is connected with the photovoltaic pump; and the microcomputer centralized control cabinet is in signal connection with the photovoltaic pump. The rainwater storage irrigation system provided by the invention is capable of removing massive harmful substances in the rainwater so as to prevent harmful substances from adversely influencing the growth of green plants, and sufficiently utilizing the rainwater resource and the solar energy so as to achieve energy conservation and environment protection functions; and moreover, the rainwater storage irrigation system is automatic in the process from primary filtration and separation to rainwater storage to spray irrigation and flood irrigation, so that the labor cost is reduced to the greatest extent and the work efficiency is improved.

The invention provides a high-silicon aluminum alloy die casting part anodic oxidation method. The high-silicon aluminum alloy die casting part anodic oxidation method comprises the following steps ofdegreasing, alkali corrosion, silicon removing, neutralizing, sand blasting, magnetic force vibration polishing, anodic oxidation, ultrasonic wave cleaning, dying, hole sealing and hot water washing.Compared with the prior art, the high-silicon aluminum alloy die casting part anodic oxidation method has the following beneficial effects that firstly, basic steps of the method can be conducted byadopting existing equipment, extra cost investment is avoided, and through improving technological parameters and the working procedure sequence, each basic operation is recombined, and decorative anodic oxide film can be acquired from high-silicon aluminum alloy die casting parts; secondly, chemical agents of the technology are all common chemical raw materials; and thirdly, the pitch-dark, bright and uniform sand surface oxidation effect can be acquired on the surface of the high-silicon aluminum alloy die casting parts which are treated with the technology.

The invention discloses a receiving device, an MMIS interface and a data interaction method, which are used for multiplexing at least two types of interfaces. The receiving device of the invention comprises the MMIS interface used for multiplexing at least two types of interfaces, a receiving module used for receiving indicator signals sent by users, a selecting module used for selecting the interface type and the working mode of a stand-to interface device according to the indicator signals received by the receiving module; a control module used for controlling interface signals of the MMIS interface corresponding to the interface type and the working mode selected by the selecting module and interacting with the interface device. The MMIS interface comprises 11 pins used for multiplexing an SPI, an SDIO and a DVB-TS interface; the 11 pins transmits interface signals corresponding to the current working mode under different working modes of the SPI, the SDIO and the DVB-TS interface.

The invention discloses a highly-integrated satellite centralized power supply monitoring device, wherein the system hardware architecture comprises a whole machine case, a front panel, an internal PXIe industrial personal computer and a rear panel. The front panel is provided with a keyboard, a liquid crystal screen and a whole machine switch. The internal PXIe industrial personal computer includes a controller, a PXIe bus backplane, a CPCI power supply and a function module. The highly-integrated satellite centralized power supply monitoring device solves the technical problem that a traditional power supply and distribution test device is large in size and high in weight, achieves command transmission and wired parameter measurement by program controlling an external Agilent 34980, needs to customize an Agilent 34980 dedicated test cable, and is convenient in convey and transition test. The highly-integrated satellite centralized power supply monitoring device integrates power supply, command transmission, telemetry parameter acquisition and the like, improves integration, and realizes test system miniaturization and rapid construction. The internal function modules can be modularly replaced so as to enhance product scalability.

The invention discloses a request processing method and device, equipment and a storage medium, and the method comprises the steps: receiving a DNS request message, carrying out the domain name fieldextraction of the DNS request message, and determining an access domain name and request data according to the extracted domain name field; Extracting an application identifier contained in the request data, and determining a next hop node according to the application identifier and the access domain name; Sending the DNS request message to a next hop node. According to the invention, domain namefield extraction is carried out on a DNS request message conforming to a DNS protocol; The DNS request message is sent to the domain name field, the access domain name and the request data are determined according to the extracted domain name field, then the next hop node is determined according to the access domain name and the request data, and the DNS request message is sent to the inquired next hop node, so that the cost investment of requesting processing through a user-defined protocol is avoided, and the reliability of request processing is ensured.

Disclosed are a reusable reinforced concrete composite pile available for on-load segmental disassembly and a construction method of the reusable reinforced concrete composite pile available for on-load segmental disassembly. The reusable reinforced concrete composite pile comprises a lower reinforced concrete pile body and an upper steel box structured pile body. The upper steel box structured pile body is composed of unit steel boxes. Segmental alternate stressing of a bearing face of the top unit steel box is realized by the aid of two jack sets, so that the pile body can be segmentally disassembled under the continuous on-load stressed condition, and variability of top load stress elevation is realized. The upper steel box combined pile body is connected through bolts under protection, so that disassembly and reuse of steel box units are facilitated.

The invention discloses a downward-drive type device for removing dust on the inner surface of a steel pipe. The device comprises an air nozzle, an air suction cavity, a plurality of multi-station rotating discs, a plurality of driving assemblies and a long arc sealing plate. The distance between the air nozzle and the air suction cavity is slightly larger than the length of the steel pipe, and the air nozzle and air suction cavity are arranged at the dust removing position. The multi-station rotating discs are arranged in the axial direction of the steel pipe, at least three gaps are formed in each multi-station rotating disc, and each gap is a station. The driving assemblies are correspondingly connected with the multi-station rotating discs and drive the multi-station rotating discs to synchronously rotate with the axes of the multi-station rotating discs as rotating axes. The two sides of each station are respectively provided with a sealing side plate which is arranged in the axial direction of the steel pipe, and each sealing side plate is fixedly arranged between every two adjacent multi-station rotating discs. The long arc sealing plate is arranged below the multi-station rotating discs in the axial direction of the steel pipe, and a sealing space is formed between the long arc sealing plate and the sealing side plates at the dust removing position. The downward-drive type device for removing the dust on the inner surface of the steel pipe can rapidly and effectively remove the dust on the thin and long steel pipe and improve reliability and working efficiency.

The invention discloses an intelligent flexible composite pipe for monitoring and repairing a shaped old pipeline. The intelligent flexible composite pipe has the functions of conducting monitoring in real time, conducting wireless transmission and conducting remote control. The intelligent flexible composite pipe is mainly applied to the field of fluid transportation of multiple areas like municipal administration, oil fields, industries, and ecological preservation areas. Besides, the shaped old pipeline is characterized in that in-situ repairing is conducted on an old steel pipeline which is seriously corroded and damaged, the cost of investment in replacing and renewing a large batch of new pipelines and conducting digging and excavating is avoided, the pipelines can be introduced on the basis of original old pipelines, non-excavation and non-replacement work is achieved, and the intelligent flexible composite pipe has the advantages of being high in pressure-bearing capability, high in pull-resistance, resistant to corrosion, resistant to scaling, high in flexibility, easy to curl and the like. Multiple sensors (pressure sensors, temperature sensors, flow detection sensors and the like) are embedded into the pipeline, the pipeline state can be monitored and detected in real time, information can be passed back to a receiving terminal through build-in optical fiber to be processed, and can also be transmitted to a center control unit through a GPRS, and thus integration of remote transmission and control is achieved.

The invention relates to a grooving pipe laying device. The grooving pipe laying device comprises a bottom frame, a pipe clamping device, a tunneling device, a bucket type lifting device and a scraper, wherein the pipe clamping device is arranged behind the bottom frame and used for clamping a pipeline, and a thrust cylinder is arranged between the pipe clamping device and the bottom frame; the tunneling device is arranged in front of the bottom frame and used for tunneling forwards; the tunneling device is provided with a residue storage groove, an opening of the residue storage groove faces upwards, and the residue storage groove is used for storing residue soil cut by the tunneling device; the bucket type lifting device is arranged in the vertical direction, the lower end of the bucket type lifting device is located in the residue storage groove, the bucket type lifting device is provided with a lifting bucket, the lifting bucket is used for lifting the residue soil in the residue storage groove upwards, and a residue outlet in the upper end of the bucket type lifting device is located in one side of a groove or above the groove; and the scraper is used for scraping a soil layer above the tunneling device when moving in the vertical direction. By additionally arranging the bucket type lifting device, the residue soil is conveyed to the ground in the vertical direction and discharged into the groove or one side of the groove, and the problem that the residue discharging efficiency of the tail is low when the pipeline is laid for a long distance is solved.

The invention discloses a high-speed steel wire winding machine. The winding machine mainly comprises a main machine base, a power assembly, a large disc, a steel wire preforming device, a wire distributing disc, a straight middle rubber shell, a transmission chain and high-speed constant-tension pay-off assemblies, wherein the power assembly is fixedly arranged on the lower portion of the main machine base, and a tension-adjustable mechanical arm is fixedly arranged on the upper portion of the left side of a main machine. The a high-speed steel wire winding machine is reasonable in structuraldesign, for a weaving mode, a winding mode can completely replace the weaving mode for production, and the problems of low weaving speed, universal materials, and noise pollution reduction are solved; one machine has multiple purposes, the pay-off or cloth pay-off tension is adjusted according to production requirements, and the production modes are flexibly switched according to the order conditions, so that production of pipe structures with different types is met, investment of factory equipment cost is reduced, the land area is reduced, the maintenance cost is reduced, and manpower resources are saved.

The present invention discloses a detection method of an infrared scattering device and a mobile terminal which can rapidly and conveniently determine the work state of an infrared scattering device.The method is applied to the mobile terminal. The mobile terminal comprises an infrared laser device and an infrared scattering device. The method comprises the steps of: starting an infrared laser device to emit an infrared ray; obtaining an infrared image, wherein the infrared image is obtained by collecting the infrared ray emitted by a detected object, and the infrared ray emitted by the detected object is formed by reflecting the infrared ray emitted by the infrared laser device at the surface of the detected surface; and determining the work state of the infrared scattering device according to the infrared image, wherein the work state comprises normal work and abnormal work.

The invention discloses a prefabricated structure construction virtual practical training system based on a building information model. The prefabricated structure construction virtual practical training system can be applied to the field of building construction practical training teaching and mainly comprises intelligent glasses fused with a mixed reality technology, a handheld controller matched with the mixed reality technology, an action sensor, a host system and a tracking system. According to the prefabricated structure construction virtual practical training system, an immersive virtual construction scene is created through adopting the mixed reality technology to complete prefabricated building construction productive practical training with high site requirements and cost requirements, so that the practical training cost is reduced, the construction safety risk is avoided, and the popularization and implementation are facilitated. And the operation of the practical training personnel and errors in the building information model correction operation are guided through the actual construction video.

The invention provides a method, apparatus and system for multiplexing the same digital certificate to a plurality of terminals. A resource end and a server constitute a source key chain of a bound public key when the digital certificate is issued, the method comprises the following steps: at least one target terminal, the resource end and the server perform identical transformation on the sourcekey chain to form at least one target key chain of the bound public key when the digital certificate is issued, and each target key chain is equivalent to the source key chain. By adoption of the method, apparatus and system, the technical problem of multiplexing the same digital certificate to a plurality of terminals safely is solved, secure experience of one-person-one-certificate is provided for a plurality of intelligent terminals of the user, and the unification of security, convenience and cost is achieved.