787 results about "Water column" patented technology

The invention relates to a computer vision technique based method and a system for detecting and extinguishing a fire disaster intelligently, which belong to the technical field of fire monitoring and self-extinguishing. The method comprises the following steps: (1) using a sub-station control module to perform the fire monitoring; (2) under the condition that flame exists, estimating the spatial position of the flame through a binocular parallax technique; (3) according to a fire monitor open rule, determining an opened fire water monitor; (4) obtaining the position of the tail end of an ejecting water column of the fire monitor, namely the position of a water-drop point, by using the computer vision technique or an image processing technique; (5) adjusting the fire monitor according to the relative positions of the water-drop point and the flame to achieve the closed-loop control to the fire monitor so as to perform extinguishing; and (6) determining that the extinguishing is finished according to monitored images, and then closing the fire monitor. The method and the system can achieve the real-time monitoring and the self-extinguishing of an outdoor large space fire disaster.

An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.

An ultrasonic testing device having a variable fluid column height is disclosed. An operator is able to adjust the fluid column height in real time during an inspection to to produce optimum ultrasonic focus and separate extraneous, unwanted UT signals from those stemming from the area of interest.

The invention discloses a compound for preparation of a high-strength polyolefin permeable membrane and a preparation method thereof. The compound comprises the following components in parts by weight: 35-65 of polyolefin resin, 30-60 of micron inorganic filler, 1-10 of nano inorganic filler, 0.2-0.5 of antioxidant, 0.1-1.0 of processing aid and 0.1-3.0 of coupling agent. The invention can improve the mechanical properties of the polyolefin permeable membrane through reasonable selection of the polyolefin resin and the nano inorganic filler, thereby reducing the thickness of the permeable membrane under the condition that the use requirements are satisfied. Moreover, the invention not only can fully develop the strengthening function of the nano filler, but also can obtain the permeable membrane with uniform aperture distribution and with water pressure resistance up to 100cm through the reasonable surface processing and the economical process flow. The transverse tensile strength of the permeable membrane is higher than 15MPa, the vertical tensile strength of the permeable membrane is higher than 30MPa, and the water pressure test reaches a 100cm water column, that is, the membrane can bear the 100cm water column without water permeation, breakage and the like.

A method and apparatus for generating power from voltage gradients at sediment-water interfaces or within stratified euxinic water-columns is provided. Natural voltage gradients typically exist at and about sediment-water interfaces or in isolated water bodies. One electrode (anode) is positioned in the sediment or water just below the redox boundary and the other electrode (cathode) is positioned in the water above the redox boundary over the first electrode. The anode is lower in voltage than the cathode. Current will flow when the electrodes are connected through a load, and near-perpetual generating of worthwhile power may be sustained by the net oxidation of organic matter catalyzed by microorganisms.

A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary water flow direction, to trap substances less-dense and more-dense than water. The apparatus features improved resistance to pollutant remobilization through treatment of water volume rather than flow rates, using vertically stacked water columns of varying depths to settle small particles. An overflow structure diverts excessive liquid without interfering with purification and separation, and can be placed integrally within or external to the apparatus receptacle.

The present invention relates to methods of attenuating underwater transmission of sound or shock waves as well as boom systems designed for such use. The boom system is characterized by a material (e.g., curtain or combination curtain and skirt) which extends substantially the entire water column when placed in a body of water, thereby defining a perimeter and a gas injection system which includes a plurality of outlets which are positioned between the perimeter and the site of underwater activity. In use, the boom system is installed such that it surrounds the site of underwater activity and then gas is injected into the water through the plurality of outlets to form a gas curtain during performance of an underwater activity capable of generating sound or shock waves.

The invention relates to a power station on a submerged floating platform consisting of a floating structure (1) submerged at a certain depth, where it is moored by means of guy lines (2) with respect to ballasts or mooring buoys (3) located in the aquatic bed, arranging on said floating structure (1) hydraulic pumping mechanisms (5) which are operated by the weight differential of the water column between the crests and the troughs of the waves when such waves pass over them, in combination with a pneumatic system acting as a spring in said mechanisms (5) for operating an electricity-generating turbine (8) through a hydraulic closed circuit.

A dual function condensate drain trap for positive or negative pressure air handling unit applicable in positive or negative pressure environments by switching connecting directions includes a drain trap which has a water inlet and a water outlet on two sides to connect to a drain pipe, and a valve seat and a retaining element located on the valve seat movable between a first position to be in contact with the valve seat and a second position to be away from the valve seat. When the pressure of water column in the water inlet is smaller than that of the water outlet, the retaining element is on the first position to form an air lock to prevent air from entering or escaping from air handling unit. By contrast, when the pressure of water column in the water inlet is greater than that of the water outlet, the retaining element is moved to the first position to drain water.

In certain offshore locations, for example off the West Coast of Africa, FPSO facilities provide an offloading facility to receive and load produced crude oil onto shuttle tankers. In such arrangements FPSO facilities use spread moored tankers with flowlines suspended in the water column to an offloading buoy or buoys which are located 1,000 to 1,500 meters away from the FPSO. Typically steel pipe flowlines as used with intermediate floatation to provide a suitable configuration that will avoid detrimental loads being imposed resulting from relative motions of the FPSO and the offloading buoy. According to the invention, a Suspended Pipe Line End Manifold (SPLEM) is connected to the end of the flowline assembly for support during towout. The SPLEM is positioned near the buoy and then connected at the sea surface to the bottom of the buoy by flexible leads such as anchor chains. The SPLEM is then flooded by selectively flooding compartments to cause it to sink to an operational position below the buoy. Next, additional submarine hoses or flexible pipe are connected to complete the flowline to the buoy.

A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary water flow direction, to trap substances less-dense and more-dense than water. The apparatus features improved resistance to pollutant remobilization through treatment of water volume rather than flow rates, using vertically stacked water columns of varying depths to settle small particles. An overflow structure diverts excessive liquid without interfering with purification and separation, and can be placed integrally within or external to the apparatus receptacle.

The present invention permits RMS traveltime error in a seismic data acquisition to be minimized. Field measurements of source and receiver coordinates, speed of sound in water as a function of depth and time, receiver timing, and clock drift are first collected. The seismic data is then examined to measure travel time from each source to each reciever. A model travel time can then be computed based on the field measurements. By iteratively perturbing at least one of the field measured data using a look-up table and calculating the travel time after each perturbation until an acceptable RMS error has been achieved, conditioned seismic data that takes into account the dynamic nature of the water column will provide the basis for creating an accurate seismic map that is unaffected by the changing water conditions.

Provided is a water pick including a hollow pipe body and a nozzle, wherein the two ends of the hollow pipe body are respectively provided with a water inlet and a water outlet, a connected channel is arranged between the water inlet and the water outlet, the nozzle is provided with a plurality of nozzle mouths which are inclined and are correspondingly inclined inwards, because the plurality of nozzle mouths inclinedly and intensively spray water columns in a multi-angle and multi-pipe manner, the object in one's oral cavity (e.g. tenacious teeth tartar and food residues) receives the water column impact with multi-angle and inclinedly inward concentrated strong water flow in a large area, thereby effectively removing yearly teeth tartar and improving the cleaning efficiency of the oral cavity.

The invention discloses a bottom-exploration zigzag-type deep sea submerged buoy system which comprises a spherical pressure-resisting cabin and a trigger action mechanism, wherein the bottom of the spherical pressure-resisting cabin of a submerged buoy body is provided with the trigger action mechanism, thus the submerged buoy which is vertically submerged to the bottom of the sea starts the trigger action mechanism at the instant of contacting the bottom, sea bottom sampling is finished and loads are released and thrown, the submerged buoy floats upward so as to complete the acquisition of vertical section information of a sea water column from the sea level to the sea bottom for the deep submerged section floating buoy; the spherical pressure-resisting cabin is formed by the connection of upper and lower semispherical end covers through bolts; the trigger action mechanism comprises an injector-type sampling mechanism, a throwing and loading mechanism and a deep bottom trigger mechanism; the top of the semispherical upper end cover of the spherical pressure-resisting cabin is provided with a thermohaline deep measuring transducer; and cameras are installed in camera holes which are uniformly distributed circumferentially on the semispherical lower end cover. The bottom-exploration zigzag-type deep sea submerged buoy system disclosed by the invention is simple in structure, low in cost and reliable in operation; and complete water column images and water quality information from the sea water level to the bottom of the ocean can be recorded, and substance sampling at the sea bottom can be realized, and a new prospect is developed in the applications of marine environmental monitoring for the deep submerged section floating buoy.

Controlled-polarization marine seismic shear-wave source has a base suitable for positioning on a seafloor, beneath a water body. Twin water-blast tubes (seismic-impulse-generation thrusters) are mounted on the base, aimed upwardly, outwardly in opposite directions at equal acute angles beta relative to the base. These blast tubes are positioned symmetrically on opposite sides of vertical centerline CL of the source. When submerged, water enters open mouths at upper ends of the tubes. The base has multiple downwardly projecting blade-like teeth for penetrating into the seafloor. Firing a compressed-air discharger mounted in a lower end of a water-blast tube hurls a powerful slug of water upwardly along the tube, producing a powerful reaction impulse acting downwardly generally parallel with the tube axis. These blade-like teeth, engaging with seafloor material, couple into the seafloor horizontal force components of reaction impulses, thereby propagating simultaneously into the body of the seafloor horizontally-polarized shear waves (SH-Waves) and vertically-polarized shear waves (SV-Waves). Firing one blast tube produces SH-Waves and SV-Waves of first polarities. Firing the other tube produces SH-Waves and SV-Waves of second polarities, respectively opposite to the first polarities. Both tubes are fired simultaneously for propagating compressional P-Waves. While lifting slightly by a swivel cable, azimuthal orientations of the source and resulting shear-wave orientations are controllably changeable by simultaneously firing pneumatic thrusters aimed outwardly from diagonally opposite corners of the base.

A method and apparatus for deploying a plurality of seismic sensor units into a water column is described. The method includes providing a length of flexible cable from a cable storage device disposed on a vessel to a powered sheave, the cable having a plurality of spaced apart attachment points, routing the cable from the powered sheave to pass adjacent a workstation disposed on the vessel, deploying a free end of the cable into the water column while increasing the motion of the vessel to a first speed, operating the vessel at the first speed while providing a deployment rate of the cable at a second speed, the second speed being greater than the first speed, decreasing the second speed of the cable as an attachment point approaches the work station, and attaching at least one of the plurality of seismic sensor units to the attachment point at the workstation.

A mosquito harvest trap which includes a control unit, a holding chamber and a water tank. The trap is based on water column technology being used to harvest and expel mosquito larvae residing within the water column.

A toilet utilizes a pressurized fluid source providing a flush volume of less than 1 gallon. A removable discharge passageway is sealingly coupled at a first end to the toilet waste outlet and at a second end to a floor flange, and defines a trapway for providing a water seal therebetween. In one example, the water seal includes a water column, and the discharge passageway is configured to maintain at least about 80% of the water column therein when the toilet is pivoted about 10 degrees. In another example, an upleg extends vertically upward a distance sufficient to maintain a minimum water column within the upleg necessary to maintain the water seal between the bowl and the floor flange when the toilet is pivoted about 10 degrees. In another example, a support bracket maintains the second end of the discharge passageway generally fixed relative to the first end.

A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary water flow direction, to trap substances less-dense and more-dense than water. The apparatus features improved resistance to pollutant remobilization through treatment of water volume rather than flow rates, using vertically stacked water columns of varying depths to settle small particles. An overflow structure diverts excessive liquid without interfering with purification and separation, and can be placed integrally within or external to the apparatus receptacle.

The present invention is water pressure burst hole and burst method with energy saving and environment friendship. Inside the burst hole, there are explosive layer with detonator, backfilled blocking layer and lead wires connected to the detonator and led outside the burst hole. The present invention features that there are two water column layers comprising water bag separately in two sides of the explosive layer. The present invention can raise the explosive energy utilizing rate, raise construction efficiency, raise economic benefit and protect environment.

A winch-based system is used to raise and lower a hydrological probe into a water column to automatically dynamically obtain measurement data of a water column at incremental depths over selected time intervals. The winch-based system can be powered by a relatively low-power power source to cause the electric motor to controllably operate to wind and unwind the cable at a desired rate in a manner which can pause the upward and downward movement of the probe at incremental measurement depths. The disclosure also describes related systems. Additionally, a method for enhancing the life of a hydroglogical probe by storing the probe at an immersed subsurface depth is also described.

The invention relates to a method for producing waterproof moisture permeability fabric based on a water foaming system. The method comprises the following steps: (1), water proofing and calendaring treatments on fabric; (2), preparation of water base coat foaming coating adhesive; (3), preparation of water surface coat foaming coating adhesive; and (4), a dry-method coating process. According to the fabric and the method, an environment-friendly water coating agent and a specific foaming system are developed; a simple coat processing technology is adopted; the high-waterproof moisture permeability fabric in a micro-nano hole structure is produced; by adopting the waterproof moisture permeability fabric produced by the invention, the waterproof property can be equal to that of a 10000mm water column; and the moisture permeability amount can be up to 7000g / m 2*24h by adopting a reverse cup method and is near to 2500g / m 2*24h by adopting an upright cup method.

The invention relates to an automatic universal tank-washing device for cleaning the insides of railway tank wagons, automobile transportation tank wagons and similar storage tanks or fixed containers, in particular to a multi-functional automatic universal tank-washing device which is used for washing the complete internal surface of a tank by a water column (sprayed from a nozzle) after circularly flowing a cycle through hydraulic drive and mechanical drive, belonging to the technical field of railway equipment. The device provided by the invention is used for washing the complete internal surface of the tank by the water column (sprayed from a nozzle) after circularly flowing a cycle through hydraulic drive and mechanical drive. The device is characterized in that after a washing water column horizontally rotates a cycle, a nozzle automatically rotates a certain angle so as to change the only upper / lower washing positions on a vertical surface, and after carrying out multi-cycle horizontal rotation, the nozzle rotates a cycle along the vertical surface. A water inlet pipeline, a water outlet pipeline and a bottom water absorption pipeline are concentrically fixed on a manhole fixed seat, therefore, the device is convenient to install and remove.

A towed active acoustic system includes a plurality of soft-bodied, towable, active acoustic modules. The plurality of active acoustic modules are suspended at various depths within the water column, and allow each active acoustic module to be much smaller than known soft-bodied systems and to operate at a much lower source level while still ensuring that the entire water column is ensonified. Each active acoustic module may include different numbers of transducers depending on the intended location of the active acoustic module relative to the water column. The tow cable preferably includes a faired body designed to minimize hydrodynamic drag and turbulence. The present system can be deployed and recovered through shipboard undersurface deployment tubes.

The invention provides asbestos free environment protective and energy-saving type diaphragm cloth and the weaving method, which relates to diaphragm material and the weaving method. The diaphragm cloth of the invention adopts one, two or three component(s) from the polyether ketone ether fiber, the polyphenyl thioether fiber, and the polypropylene fiber, and meets the following requirements: unit weight: 0.5 to 1.5 kg / square meter; cloth thickness range: 0.5 to 1.5 mm; gauge of cloth: longitude 100 to 280 piece / 10 cm, latitude 56 to 150 piece / 10 cm; alkali loss: no larger than 2 percent; airtight protection performance: no air bubble produced in two minutes under the pressure of 300 mm water column, and the weaving can be performed according to the wool spinning technology and the cotton spinning technology. The invention breaks the trade barrier of the developed countries, the overall level of the hydrogen making and oxygen making equipment of our country is enhanced, and the pollution to the environment and the harm to the human body by the asbestos dust are reduced. Compared with the traditional asbestos diaphragm cloth, the thickness of the production can be reduced as low as 55 to 85 percent, and more than 10 percent of the energy can be conserved.

The simultaneous taking of water samples from the bottom of a column of water in the bed water above a water bed is of use for scientific investigation of the transition zone between the water bed and the water column lying above the same, for the determination of parameter gradients. Conventional bed water sampling devices with an arrangement of horizontally oriented sample containers at different water levels do not generally permit a non-invasive sampling. According to the invention, said ground water sampling device thus comprises central retainer rod (2) for the sample containers (3), which permanently rotate freely and easily in the bottom currents by means of a flow vane (6). All sample containers (3) comprise sealing devices (16) on both front surfaces (14, 15) and are flushed through with bed water originating from the corresponding level before the sampling. All sealing devices (16) are essentially instantaneously by means of a time-controlled actuator (10) which is mechanically activated by pushing up a trigger plate (8) after the adequately long placement of the ground water sampling device (1). High-resolution profiles of various parameters can thus be simply, precisely and reproducibly determined even in water of great depth, by means of said simple and robust bed water sampling device (1), which can be lowered by means of a simple steel cable (7).

The invention discloses a mobile type live washing device for a transmission line, comprising a carrier vehicle. The carrier vehicle carries a power device, a monitoring device and a water tank, wherein the output end of the power device drives a high pressure pump through a resilient coupling; after water in the water tank is pressurized by the high pressure pump, the water is sprayed out from a gun nozzle through a spillover valve, a main water conduit and a squirt gun; insulators on the transmission line are washed by water column with certain pressure and length. The monitoring device can automatically control rotating speed of the power device to play a role in regulating output hydraulic pressure of the high pressure pump; the power device drives a main reel through a hydraulic device; the monitoring device controls positive and negative rotation of the main reel through a three-position four-way valve to achieve the aim of mechanically receiving and releasing the main water conduit; after the device conveys the water to the position with horizontal distance of 300m and vertical distance of 180m, the requirement of washing the insulators of the 110 to 500kV transmission line can be still met. The device integrally effectively realizes transmission line live washing operation in long distance on large scale.

Systems and methods are described for correcting distorted images captured of underwater environments. Caustics are used to provide additional illumination to underwater objects, and lenslets from ocean wave fluid lensing are used to magnify a benthic scene for enhancing the effective resolution of the images. The process introduces a fluid distortion characterization methodology, caustic bathymetry concepts, fluid lensing lenslet homography technique, two dimensional image reconstruction process, and three dimensional airborne fluid lensing process for characterizing the aquatic surface wave field, modelling bathymetry using caustic phenomena, and robust high-resolution aquatic remote sensing. Performing remote sensing using fluid lensing, also referred to as the fluid lensing process, utilizes high-frame-rate multispectral remote sensing data to remove ocean wave distortions from an image, to enhance the resolution of an image by exploiting ocean waves, and to enhance the signal strength of an image otherwise impaired by optical absorption in the water column.