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4360 results about "Sewerage" patented technology
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Sewerage is the infrastructure that conveys sewage or surface runoff (stormwater, meltwater, rainwater) using sewers. It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and screening chambers of the combined sewer or sanitary sewer. Sewerage ends at the entry to a sewage treatment plant or at the point of discharge into the environment. It is the system of pipes, chambers, manholes, etc. that conveys the sewage or storm water.
Compound flocculant taking natural minerals as main components
InactiveCN104229957AEfficient removalApplicable to a wide range of PHWater resource protectionWater/sewage treatment by flocculation/precipitationDry weightNatural mineral
The invention discloses a compound flocculant taking natural minerals as main components. The compound flocculant is mainly prepared from the following components by weight percent: 60%-85% of natural minerals, 8%-38% traditional inorganic flocculant and 3%-10% of organic polymer flocculant. According to the invention, key points are as follows: in the compound flocculant taking natural minerals as main components, the weight of the natural minerals, the inorganic flocculant and the organic polymer flocculant is dry weight; and the compound flocculant is implemented to purification of civil engineering wastewater, natural water, industrial wastewater, oily wastewater, fluoride wastewater, food processing wastewater, auto parts processing wastewater, colored wastewater, clean wastewater, semiconductor processing wastewater, restaurant waste water, mine water, slaughter wastewater, grinding wastewater, sewage effluent and the like.
Owner:张家领
Apparatus and method for detecting pipelwe defects
InactiveUS20040021858A1Optically investigating flaws/contaminationUsing optical meansFish eye lensCcd camera
An apparatus and method are disclosed for scanning and detecting defects in sewer and similar pipelines that eliminate the need to stop and pan-and-tilt areas of concern. In the method of the invention, a pipeline (15) inspection probe (10) of the apparatus of the invention comprising a CCD camera (14) with fish-eye lens (12) travels through the pipeline (15) on a self-propelled tractor automatically collecting data and transmitting it to a computer to provide a real-time display of the pipeline (15) interior with quasi three-dimensional information for effective and quick data analysis and management. The data includes digitized forward views and unfolded 360 degree laid-flat side-san (22) views of the pipeline (15) interior. Additionally, the digitized data may be stored for further analysis, tabulation, and for use with pipeline infrastructure maintenance software.
Owner:OYO CORP US
Water treatment
InactiveUS20060000784A1Good removal effectReduce needWater/sewage treatment by irradiationWater/sewage treatment by electrochemical methodsSludgePotable water
This is a method of water and wastewater treatment for removal of pollutants in at least two-step process comprising (a) treatment of water producing at least partially treated intermediate effluent, (b) treatment of the intermediate effluent with a sacrificial metal and producing ions of said sacrificial metal, and providing very thoroughly treated effluent, (c) recuperating sacrificial metal ions generated in the step (b) and recycling the recuperated ions in the step (a), the recuperated and recycled ions from the step (c) improve treatment efficiency of step (a) by additionally removing pollutants from the intermediate effluent using recuperated ions, resulting in cleaner intermediate effluent, and, therefore, the pollutant loading rate in step (b) is reduced, intermediate effluent is further treated more thoroughly, and the demand for the sacrificial metal in step (b) is reduced. Step (a) can preferably be a biological, biological-abiotic, physical chemical, or combination of these steps. Step (b) is preferably a spontaneous cementation-driven electrochemical process. The combination of said steps (a), (b) and (c) produces a synergistic effect resulting in improved removal of said pollutants and in reduced need in said sacrificial metal. For example, a drinking quality water can be very economically and reliably obtained from wastewater. In addition to the superb treatment efficiency and reduced reagent requirements, the waste sludge from the system is beneficially disposed in-sewers, in sanitary landfills or on land.
Owner:KHUDENKO BORIS
Gas field sewerage and solid pollutant comprehensive processing technological process
InactiveCN101475285AEasy to handleReduce pollutionSludge treatment by de-watering/drying/thickeningFatty/oily/floating substances removal devicesSocial benefitsSludge
The invention relates to a comprehensive treatment process method for sewage and solid pollutants in a natural gas field. The process method comprises five process units, namely, purification treatment for gas production accompanying sewage, purification treatment for drilling mud sewage, biochemical treatment for yielding water and water quality adjustment, fine filtering discharge of the yielding water, mud purification and solidification treatment for the solid pollutants. From the reality of development and production of the natural gas field, the comprehensive treatment process method for the sewage and the solid pollutants in the natural gas field combines environmental protection requirement, has strong comprehensiveness and practicality, is easy to execute, can effectively treat the sewage and the solid pollutants in the natural gas field, changes waste into valuable, effectively reduces environment pollution, and acquires good economic and social benefits.
Owner:LIAONING TIANYI IND CO LTD
System for Controlling the Concentration of a Detrimental Substance in a Sewer Network
InactiveUS20090242468A1Water treatment parameter controlGeneral water supply conservationHazardous substanceRadio frequency signal
The invention relates to a system for controlling the concentration of a detrimental substance, in particular H2S, in a sewer network. The system comprises a monitoring device arranged at a monitoring location in the sewer network and at least one dosing controller arranged at a dosing location upstream the monitoring location. The monitoring device is arranged for providing a signal indicating a measured H2S concentration at the monitoring location and for transmitting a radio frequency signal carrying information about the H2S concentration. The dosing controller is arranged for receiving the radio frequency signal, deriving a concentration signal based on the radio frequency signal, calculating a dose of a preselected additive based on the derived concentration signal, and supplying a dosing signal to a dosing device, causing the dosing device to add the calculated dose at the dosing location. Advantageously, the calculating of a dose also takes into account critical process indicators acquired at the dosing location. A main controller is arranged to communicate with the at controllers, and various control tasks are distributed among the main controller and the dosing controllers.
Owner:YARA INT ASA
Water-saving, uneasily blocked and automatic high pressure flush closet
ActiveCN102864830AImprove application flexibilityImprove performanceWater closetsFlushing devicesPore water pressureEngineering
Owner:ZHEJIANG KEZHUDA MACHINERY TECH CO LTD
Stormdrain curb-inlet multi-stage filtration-unit
InactiveUS7083721B2Easy to disassembleEasy accessGeneral water supply conservationPaving gutters/kerbsFiltrationPetrochemical
A hydraulic-permeation type environmental water-runoff filtration-system applicable to street curb-inlet type drainage-chambers, which generally cooperatively interconnect with street and parking-lot drains. The BLUEBAY-BMP™ pollution-trap provides advantage of community-tailored filtering stages, the preferred embodiment seting forth a convenient user-friendly prefabricated-kit assembly employing a basic build-in-place containment-housing which can be readily adapted to the studied needs of a given community,—without incuring alteration of existing sewer-stormdrains. The uniquely adaptative capability of the containment-housing enables selectively structuring multi-stages of filtration, which progressions address a variety of ecosystem-contaminants, ranging from basic street-refuse and floatable objects, to coarse sediment, finer silt, and comparatively minute albeit environmentally-hazardous petrochemicals, heavy-metals, phosphates, and nitrates;—all of which are readily retrieved from the apparatus confines via periodic maintenance for transfer to appropriate collection handling facilities.
Owner:STEWART D MCCLURE +3
Method and Device for the Assessment of Fluid Collection Networks
InactiveUS20090105969A1Low costEfficient use ofVolume/mass flow by thermal effectsVolume meteringData displayAccelerometer
The improved monitoring device includes a data acquisition device with an accelerometer inside a bendable tube. One end of the tube is connected to a pole that may be secured to the top of a sewer manhole, while the other end is submerged in a fluid flow. The tilt, oscillations, and pressure exerted upon the tube due to fluid flow are measured and recorded. An improved method includes installing several monitoring devices into sewer system manholes, recording fluid level and flow, reading the recorded data, and displaying the data in chart or map form. Data may be displayed in two or three dimensional maps that may be overlaid with information of topography, street maps, and single or multiple sewer systems. Data displayed on the maps may include fluid flow rates, fluid levels, derivatives and integrals of flow rates, and differences in fluid levels or flow between monitoring devices.
Owner:SAYLOR DAVID J
Method and apparatus for the disposal of waste fluids
An innovative method and apparatus for disposing of waste fluids, especially human body fluids such as are generated during surgery, into a hospital's sanitary sewer system is provided. A conduit system is adapted to transport waste fluid from a receptacle to a sanitary sewer using an eductor having a venturi device. The conduit system includes first and second conduits. First and second connectors are used to easily connect the first conduit to the second conduit. The second connector includes a flap that acts as a check valve.
Owner:ALLEGIANCE CORP
Apparatus and method to repair the junction of a sewer main line and lateral pipe
A liner assembly and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member and a lateral liner tube. A collar disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.
Owner:LMK TECH LLC
Monitoring systems and methods for sewer and other conduit systems
The present invention provides a monitoring system for a conduit network including one or more conduit sections joined at one or more conduit nodes, including: one or more sensor devices disposed at selected ones of the one or more conduit nodes, wherein each of the one or more sensor devices is operable for sensing a blockage or breakage in an associated conduit section, and wherein each of the one or more sensor devices is operable for communicating blockage or breakage information to a central location. Optionally, each of the sensor devices includes one of an audio sensor device and a radio frequency sensor device. Each of the sensor devices is operable for sensing the blockage or breakage in the associated conduit section by measuring an attribute of a transmitted / received signal, alone or in combination with another sensor device. Each of the sensor devices is operable for communicating the blockage or breakage information to the central location via a wireless link.
Owner:JUNIVERSITI OF NORT KAROLINA EHT SHARLOTT
Cartridge apparatus for urinal
A cartridge apparatus for use with a urinal (e.g., a waterless urinal) is configured to be received at least partially within a cartridge housing associated with the urinal bowl thereof. The cartridge apparatus includes a cartridge top member having at least one opening configured to allow urine in a urinal bowl to pass into the cartridge apparatus and a fluidless cartridge trap connected to the cartridge top member that is normally in a closed state to prevent gases (e.g., sewer gases or other odors) from exiting from a cartridge housing and that is in an open state to allow urine to pass therethrough when urine is received in the cartridge apparatus through the cartridge top member. A urinal apparatus with which the cartridge may be used may include a cleaning apparatus for use in disinfecting and / or deodorizing the urinal apparatus.
Owner:JANSSEN TERRANCE E
Adjustable manhole apparatus
A manhole access for sewers. More particularly, the present invention relates to a manhole that is adjustable in height and / or pitch to allow the top of the manhole top section to conform to the pitch of a surrounding surface, such as a road. Specifically, there is a cover, configured to cover access to the manhole extension, and an adjuster, coupled between the cover and the manhole extension, designed to be positioned in multiple positioned that form an angle of the cover relative to a top edge of the manhole extension. The adjuster has a cover coupler, positioned on a top side of thereof, designed to releasably hold the cover; and manhole extension coupler, positioned on a bottom edge thereof, designed to hold the adjuster proximate to the top edge of the manhole extension. The adjuster further includes a first position that provides for zero degrees of slope between the manhole cover and the top edge of the manhole extension; and a second position that provides for up to and including twenty degrees of slope between the manhole cover and the top edge of the manhole extension.
Owner:PRECISION COVER SYST
Method and apparatus for treating oil refining sewerage
ActiveCN101434443AReduce shockFacilitate deep processing and reuseWater/sewage treatmentMultistage water/sewage treatmentHigh concentrationActivated sludge
The invention relates to a treatment method and a device for refinery sewage. The refinery sewage is sent into an electrolytic catalysis oxidation reactor which is provided with an anode, a cathode and solid catalyst particles, wherein, the lower part of the reactor is provided with an oxygenation aeration device, the solid catalyst particles are filled between the anode and the cathode, and the solid catalyst particles adopts particle activated carbon loaded with metals having catalytic and oxidation function. The effluent of the electrolytic catalysis oxidation can be further treated by adopting an activated sludge process. The method is used for treating high-concentration salt-containing mixed wastewater such as the draining water of a refinery electrical desalting unit, the alkali washing waste alkali liquid of oils, liquefied petroleum gas and dry gas, and cutting water in an oils tank farm, and the like, the wastewater after treatment satisfies the requirement of direct discharging, thus alleviating impact on a wastewater treatment plant. The method put forward by the invention has the advantages that high-concentration wastewater can reach disposable treatment standard and does not need any dilution biochemical treatment, treatment effluent is not polluted secondarily by metal ions, and investment and running cost are lower, and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
Process and apparatus for electrocoagulative treatment of industrial waste water
InactiveUS20020040855A1Efficient removalEasy to manufactureElectrostatic separatorsSludge treatmentElectrocoagulationIndustrial waste water
An electrocoagulation system for removing contaminants from waste effluents comprising an electrocoagulation reactor having charged and uncharged plates and allowing serial flow of water therethrough. The reactor is connected to a voltage source to charge some of the plates positive and some negative, with uncharged plates between the positive and negative plates. The system allows waste water to enter the reactor for coagulation therein, the waste water leaving the reactor to enter a defoam tank for agitation which allows trapped bubbles to rise to the surface of the tank as foam. From the defoam tank, waste water goes through a sludge thickener, to allow sludge to settle at the bottom thereof and waste water is drawn off from the sludge thickener to flow to a clarifier. The pump removes sludge forming at the bottom of clarifier to take it back to the sludge thickener. The sludge is drawn out the bottom of the sludge thickener for transport to a press where most of the water is removed therefrom. Water is drawn off the top of the clarifier for transport to a conventional sewer system, or for reuse.
Owner:UNITED RENTALS NORTH AMERICA INC
Reusable storm water sampler and pollutant filter insert
InactiveUS20020130083A1Easy passEasy to identifyTreatment involving filtrationPaving detailsSurface runoffSolvent
An insert for use in a sewer system to remove oils and solvents carried by surface water runoff. The insert includes a holder and a quantity of water permeable, hydrophobic, oil and solvent absorbing material such as melt blown polypropylene. The holder has two functions. It holds an effective quantity of the absorber and holds it in such a way that the surface water is exposed to the absorber to allow oils and solvents to be absorbed. The insert in preferably placed, cartridge-like, at the inlet or outlet of the sewer system so that it may be quickly checked, replaced and serviced. In one embodiment, the insert also contains a leaf trap.
Owner:WATERPOLLUTIONSOLUTIONS COM
Battery-powered sewer and drain cleaner
InactiveUS7676879B1Eliminate the risk of electric shockProtection elementHollow article cleaningCleaning using toolsPower flowElectrical battery
A battery-powered sewer and drain cleaner comprising a frame, a rotatable drum mounted on the frame which has a flexible plumber's snake associated therewith, a DC motor mounted on the frame for driving the drum and a rechargeable battery mounted on the frame for powering the DC motor. A control is connected to the DC motor for controlling the operation thereof. The use of DC power for the cleaner eliminates the electrocution hazard associated with AC-driven sewer and drain cleaners and eliminates the need for an extension cord. The sewer and drain cleaner of this invention includes new and unique circuitry to bypass the motor high current demand around the more delicate circuitry.
Owner:RUTENBERG KEITH H +1
Protector for sewer system inlet
Owner:BMP SUPPLIES
Soft soil foundation reinforcing means
InactiveCN101265701AShorten the construction periodLow costSoil preservationPore water pressureEngineering
A soft soil foundation reinforcing method includes the following steps: backfilling a medium coarse sand cushion on the site surface, inserting and beating a plastic drainage board, setting up drainage systema in vertical and horizontal directions, burying a pore water pressure layered settlement and lateral deformation observation system; laying a vacuum membrane, installing a vacuum sewerage system, vacuum preloading, filling and rolling when the pressure under the vacuum membrane reaches 80KPa and becomes stable; vacuum-heap combined preloading, starting to dynamic compact when an obvious inflexion appears and the settlement curve tends to be gentle inclined and the accumulated settlement volume reaches 60-70% of the estimated settlement volume; when the settlement curve tends to be stable, stopping vacuum preloading and fully compacting. The method has the advantages of short construction period, low cost, large bearing capacity of the hard shell, and obviously reduced post-construction settlement and uneven sensing settlement, and has unique advantages over land reclamation projects in coastal areas such as Fujian, Zhejiang, Shandong and Liaoning Provinces around which a large amount of stonework material can be excavated and backfilled.
Owner:张伯谦
Solid polyurethane compositions, infrastucture repair and geo-stabilization processes
Owner:BAYER MATERIALSCIENCE AG
Robot for detecting drainage pipeline video
The invention discloses a robot for detecting drainage pipeline video, which belongs to mechanical equipment for a pipeline. The integral structure of the robot comprises an image pickup system, a lens control system, a body driving mechanism, a software control and data transmission system and an illumination device. The members have the following relationships that: the driving system loads other systems to crawl in the pipeline, the lens control system is used for adjusting the position and angle of the image pickup system, the image pickup system acquires internal information of the illuminated pipeline, and finally the information is output to a computer screen through the data transmission system. The robot has small size, and is suitable for observing the environment in a sewer with the pipe diameter of 300 to 800 millimeters and the filling degree of no more than 50 percent; the gravity center of the body is low, so the robot is not easy to turn to one side; and the integral weight is lighter so as to facilitate field operation of workers.
Owner:TSINGHUA UNIV
Three-phase separation and waste water purification standard treatment device of kitchen waste including 'waste oil' and solid waste and kitchen waste water
InactiveCN103159362AEfficient separationIncrease temperatureFatty oils/acids recovery from wasteFatty/oily/floating substances removal devicesNumerical controlWater quality
The invention discloses a three-phase separation and waste water purification standard treatment device of kitchen waste including 'waste oil', solid waste and kitchen waste water. The three-phase separation and waste purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water is mainly composed of a shell body, a solid-liquid separation chamber, a filtering bag with meshes, a liquid level displayer, an oil-water interface detector, a numerical control electric valve which discharges the 'waste oil', a flowmeter of the 'waste oil', a collection tank of the 'waste oil', a blower, an air heating device, a filtering tank, a drug adding tank and the like. According to the three-phase separation and waste water purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water, oil and water separation and waste water purification are carried out in the same device, an equipment structure is simplified, the water quality after being purified is in line with each indicator of 'water quality standard of sewage discharged into the city sewer' (CJ3082-1999), The three-phase separation and waste purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water has the advantages that the size is small, the investment is low, either manual or automatic operation is available and the like, and obvious creativity, novelty and good industrial applicability are provided.
Owner:周鼎力
Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process
InactiveCN101525207AImprove denitrification effectHigh processing loadTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentDenitrifying bacteriaBiological filter
The invention discloses an integrated pre-denitrification and denitrogenation biological filter sewerage treatment process. The integrated process is characterized in that: the process is realized by combining an anoxic denitrification biological filter and an aerobic nitrification biological filter in tandem, first, sewage with organic substances and ammonia nitrogen is mixed with part of effluent water of the aerobic nitrification biological filter which flows back to a water inlet end, then the sewage and the effluent water pass the anoxic denitrification biological filter together, and the organic substances in the sewage are taken as a carbon source by denitrifying bacteria adhesively growing on bio-ceramsite in the anoxic denitrification biological filter to reduce nitrate nitrogen from the return water of the aerobic nitrification biological filter into nitrogen gas, thus realizing denitrification function; and the effluent water of the anoxic denitrification biological filter flows to the aerobic nitrification biological filter, and a filter material in the aerobic nitrification biological filter is adhered with special growing aerobic decarbonization microbes and the growing denitrifying bacteria which further degrade the organic substances and the ammonia nitrogen from the anoxic denitrification biological filter, thus causing content indicators of the organic substances, the ammonia nitrogen, total nitrogen and the like in the effluent water of the aerobic nitrification biological filter to meet the discharge requirement.
Owner:郑俊
Living-hinge air vent valve
InactiveUS20090071551A1Inhibit gas flowAvoid flowCheck valvesDomestic plumbingGuide tubeLiving hinge
An application for a living-hinge air vent valve connectable to a sewer conduit includes a base and a cover sealed to the base forming a cavity between the cover and the base. A fluid inlet shaft depends from a roof of the base and is connected to external air passages passing through a side of the base and through vents in a side of the cover. A living-hinge flapper is situated above the fluid inlet shaft and within the cavity. The living-hinge flapper allows air to flow from the fluid inlet shaft into the cavity and prevents sewerage gasses from flowing from the cavity out through the fluid inlet shaft. One or more connecting shafts in the base fluidly connect the cavity with a sewer system.
Owner:CHALICH WAYNE D
Apparatus for the enhancement of water quality in a subterranean pressurized water distribution system
InactiveUS6880566B2Reduce resource requirementsEfficient and cost-effectiveLiquid separation auxillary apparatusServomotor componentsSubsurface drainageAbove ground
An apparatus for the enhancement of water quality is provided for purging a low flow area of a subterranean water distribution system. The apparatus can include: a water carrier system for transporting water through the apparatus, a flow control valve for adjusting the flow rate of water through the system; a programmable solenoid controller for activating and deactivating the flow control valve; electronic and / or optical sensing devices for measuring water quality; a data access and programming port; and an electronic control system. The components cooperate to provide a means for automatically measuring water quality and then purging water from the low flow area as required. The apparatus can discharge directly to a below ground drain such as a storm drain, sewer or drain field. Alternatively, the apparatus can have an above ground downwardly directed discharge.
Owner:MUELLER INT LLC
Electrochemical system and method for the treatment of water and wastewater
ActiveUS20090321251A1Improves of drinking water and sanitary conditionEffective treatmentFrom normal temperature solutionsLiquid separation by electricityElectrical polarityWastewater
Contaminants are removed from raw water or discharge water from plants, such as sewerage and industrial plants, by applying direct current through an array of spaced, alternately charged electrodes to eliminate or minimize clogging of the electrodes with precipitated contaminants. Polarity may be switched periodically to assist in eliminating or minimizing clogging. In illustrated embodiments, electrode arrays are contained in housings of dielectric material to form modules, To increase processing capacity, the modules are arranged in parallel arrays. Alternatively, a single module is scaled up for large or industrial applications or scaled down for personal use. Instead of housing the electrode arrays in modules through which liquid passes, the electrode arrays for some batch applications are dipped in the water or aqueous solutions.
Owner:ELECTRO CHEM CORP
Method and device for decomposing environmental pollutants
InactiveCN1535249ALow costWater treatment parameter controlWater/sewage treatment by irradiationHalogenTransducer
Owner:FUJI ELECTRIC CO LTD
Cylindrical sewer cleaning and maintenance robot
InactiveCN109577472AAchieve cleanupEasy to cleanSewer cleaningPipe elementsControl engineeringActuator
The invention belongs to the technical field of robots, in particular to a cylindrical sewer cleaning and maintenance robot. The robot includes a sleeve, a power mechanism, a scraping mechanism, a battery pack, an illumination lamp, a camera, a controller, an actuator and a wirelesstransmission module; the power mechanism is disposed on the right side of the sleeve, and the power mechanism is usedfor movement and rotation of the robot; the scraping wall mechanism is disposed on the left side of the sleeve, the scraping mechanism is used for scraping offsundries on the wall of a sewer, and theleft side of the scraping mechanism is provided with the illumination lamp and the camera. By setting the power mechanism, the scraping mechanism, the camera and the like, the robot can clean the wall of the sewer, and the robot can switch back and forth between the high speed and the high effectso as to adapt to the different conditions of the adhesion of the sundries in the sewer, thereby efficientlycleaning and maintaining the sewer.
Owner:HARBIN UNIV OF SCI & TECH
Wash apparatus of heat pump of recovering residual heat from bathhouse
InactiveCN1916510AImprove performanceImprove efficiencyLighting and heating apparatusEnergy efficient heating/coolingWastewaterEngineering
A heat pump bathing machine utilizing residual heat of public bath pool is prepared as setting two outputs on waste water pool, draining water off directly to sewer by valve F4 through one output, sending water to filter and to heat exchanger as well as to heat pump evaporator for heat exchanger then draining to sewer, using one running water line for supplying bath room water and using another line to supply water to heat exchanger and to heat pump condenser for heat exchange then sending it to heat accumulation box of water.
Owner:TSINGHUA UNIV
Method and system for developing a numerical dynamic sanitary sewer and storm water drainage simulation model
ActiveUS7039565B1Geometric CADComputation using non-contact making devicesSoftware systemCommercial software
An hydraulics software system for a one-dimensional hydrodynamic numerical model for modeling unsteady flows in sewer and storm water urban drainage systems is provided. The inventive software uses as a numerical model, an implicit four-point, finite-difference solution technique to solve the one-dimensional Saint-Venant equations. The software is designed to select that numerical model, or equation that best describes, or best exhibits the behavior of each of the various structures and flows encountered in complex hydrodynamic systems such as a sewer and storm water drainage systems. Local partial initial modification for subcritical and supercritical transcritical flows is provided. Relaxation for pipe / channel networks are included for achieving computational performance and robustness for commercial software for practical use in water resource engineering.
Owner:BENTLEY SYST INC
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