233 results about "Water mass" patented technology

Jacket frame floating structures comprise one or more elongate vertical support columns formed of an open cross-braced jacket formwork of tubular members interconnected together and at least one cylindrical buoyancy capsule disposed in the open framework near an upper end and at least one cylindrical second buoyancy capsule near a lower end in vertically spaced relation. The buoyancy capsule(s) may be a single, or a plurality of upper and lower capsules bundled in circumferentially spaced relation with a central opening therethrough. Alternatively, a keel tank may replace the lower capsule. The buoyancy of the upper buoyancy capsule(s) is adjustably tuned to provide a buoyant force and a sufficient water plane area and moment of inertia required for stability of the floating structure, and the water mass and weight of the lower buoyancy capsule(s) or keel tank(s) is adjustably tuned to raise or lower the center of gravity of the entire mass of the floating structure with respect to its center of buoyancy according to ballast and variable or fixed loads including deck payloads to stabilize the structure. Alternatively, a keel tank may replace the lower capsule. The buoyancy of the upper buoyancy capsule(s) is adjustably tuned to provide a buoyant force and a sufficient water plane area and moment of inertia required for stability of the floating structure, and the water mass and weight of the lower buoyancy capsule(s) or keel tanks(s) is adjustably tuned to raise or lower the center of gravity of the entire mass of the floating structure with respect to its center of buoyancy according to ballast and variable or fixed loads including deck payloads, to stabilize the structure, and to compensate for different operational, environmental, survival and installation stages of the structure. The length of the upper buoyancy capsule(s) is sufficient so as to be partially submerged and allow oscillation of the trough and crest of waves within its top and bottom ends.

A method and device for emitting radial seismic waves in a material medium by electromagnetic induction, used notably for generating seismic waves in cased or uncased wells or in a water mass is disclosed. Emission of radial waves is essentially obtained by radially expanding a metal tube (1) under the effect of a magnetic pressure generated by electromagnetic induction with elastic waves being created in the medium under the effect of this expansion. The magnetic pressure is obtained by connecting a coil (2) in line with the tube to a current generator (3). The winding pitch of coil (2) can be constant or variable. Tube (1) can for example be added into a well or hole or it can be a tube portion of a cased well.

The invention provides an optimization method for determining a flue gas excess heat organic Rankine cycle system parameter. The optimization method comprises the steps of taking into account of a cooling water cycle to establish a thermodynamic model; through a first law of thermodynamics and a second law of thermodynamics, obtaining system net output power, water pump waste power, heat efficiency, (the formula is shown in the description) efficiency and irreversible loss, and according to the influence of an evaporation temperature and an expansion ratio on system thermodynamic performance, determining an optimal evaporation temperature; under the optimal evaporation temperature, calculating heat exchange areas of an evaporator and a condenser, wherein it is defined that an economical objective function is the ratio of the system net output power to the area of the evaporator to the area of the condenser, and the comprehensively evaluation function is the weighted sum the economical objective function (the formula is shown in the description) and the efficiency; with the comprehensive evaluation function being an optimization target, determining an optimal condensation temperature; according to the optimal evaporation temperature and the optimal condensation temperature, determining system parameters of work medium mass, cooling water mass, evaporation pressure, condensation pressure, an expansion ratio, the net output power, the heat efficiency and the irreversible loss. According to the optimization method for determining the flue gas excess heat organic Rankine cycle system parameter, the optimal evaporation temperature and the condensation temperature can be determined, and thus the optimal system parameter is determined.

A method for regulating the production of steam from feed water in an evaporator of a steam plant is provided. A state regulator calculates a plurality of states of a medium in the evaporator by means of an observer and, on the basis thereof, determines a feed water mass flow rate as a regulating variable. In order to obtain a stable and precise regulation of the temperature of the steam, the state regulator is a linear-quadratic regulator.

The invention discloses a melamine resin and polyurea resin double-shell microcapsule and a preparing method and application thereof. The preparing method includes the steps that a melamine prepolymer, a chain extender and an emulsifying agent are added into a reactor by the mass ratio of 100:5:20-100:10:30, and stirred at a low speed at the room temperature until the melamine prepolymer, the chain extender and the emulsifying agent are completely dissolved, the pH value is adjusted to be one to six, a curing agent and core material homogeneous phase mixture is added, an emulsifying machine is used for emulsifying and stirring under the ice-bath condition, and emulsification is conducted continuously; the temperature of a water bath is raised to be 40 DEG C or above, a turbulent stirring paddle is used for stirring, a reaction continues to be conducted, the pH value is adjusted to be larger than or equal to six, and the reaction is stopped to obtain the double-shell microcapsule with the particle size of 0.1-300 micrometers, wherein an outer shell is made of melamine resin, and an inner shell is made of polyurea resin. A core material is protected by two shell materials, storage stability of the microcapsule can be improved, and the water mass content of the double-shell microcapsule is smaller than or equal to 5%; the critical stress is 0-900 mN, and the mechanical property is good.

A totally enclosed flexible deep water enclosure can effectively separate open water body. The main body comprises a flexible bar shape floating body, a cork rope, a wall cloth, a ground rope, and a stone dragon. The stone dragon is buried in a sealed close bottom end of a silt layer, and the flexible bar shape floating body floats on the water to form separation. A mooring cable is used for fixing the ground rope on two under water wood piles at two sides, preserving degree relaxation in the vertical and horizontal directions. An under water anchoring mooring cable, the ground rope, a wall cloth longitudinal stiffening rib, and the cork rope constitutes the network-shape mechanics structure of the enclosure. The flexible bar shape floating body uses a flue to wrap a flexible closed-hole foam plastic strip, and the outside is protected by a changeable coating for structural durability. The enclosure subsections are connected by zipper fashion blanket stitches, convenient for processing, transportation, installation, dissembling, maintenance, and reuse, and can be used for contemporary separation of part water areas of the open water body, such as the boundary control of water surface project area, the separation and diversion of polluted water mass. The invention is suitable for natural conditions such as deep water (10m above), storm, water current, water level fluctuating, with the service life of 5-10 years.

The invention discloses a method for determining an optimal floor heating operation condition of an air source heat pump based on energy conservation. All conventional methods have the problem that the energy cannot be saved enough and is wasted. The method considers the influence of the environmental temperature, the water supply temperature and the circulating water mass flux on a system, and comprises the steps of creating a heat balance model of floor heating, creating an energy efficiency ratio and power consumption model of the heat pump, creating an energy consumption model equation of floor heating water circulation, creating a total optimization model, and optimizing by the models to obtain optimal control parameters for enabling the system to run at an optimal working point. According to the method, the running energy consumption of the system can be reduced, so that the purposes of reducing the running cost, saving energy and reducing emission are achieved.

The invention discloses a quick measurement method for different forms of water in sludge. The quick measurement method comprises the following steps of: (1) performing low-field nuclear magnetic resonance measurement on the sludge to obtain a transverse relaxation time T2 spectrum of different forms of water in the sludge; (2) stewing and settling activated sludge, preparing a standard sample by supernatant liquid at equal mass interval, and constructing a standard curve; (3) according to the obtained standard curve, matrixing the low-field nuclear magnetic resonance transverse relaxation time of the sludge to obtain three different forms of water, namely free water mass, interstitial water mass and surface combined water mass in the sludge; and (4) drying the sludge to be measured until the weight is balanced, subtracting the final mass from the initial mass, and calculating the fourth form of water in the sludge, namely the internal combined water mass. Compared with the conventional method, the quick measurement method for measuring the content of different forms of water in the sludge by a nuclear magnetic resonance technology has the advantages of short experiment time, harmlessness to experiment samples, precision of measurement and the like.

The invention relates to a process for purifying culturing water mass by utilizing microorganism, wherein microbiological functional bacteria of four various physiological categories, including nitrifying bacteria and nitrosation bacteria, denitrogenation sulfur bacillus in denitrifying bacteria, sulfur bacteria, and photosynthetic bacteria are thrown into the culturing water mass, the throwing amount is 0.05-0.20% of the culturing water mass, while the ratio by volume of various bacteria thrown is, nitrifying bacteria and nitrosation bacteria : denitrogenation sulfur bacillus in denitrifying bacteria : sulfur bacteria : photosynthetic bacteria = (1-4) : (1.6í½3) : (2í½3.6) : (1í½4). The invention can substantially reduce the contaminant in the culturing water mass. íí

The invention discloses a device and method for determination of a coal rock isothermal desorption curve under saturated water condition. The device comprises a gas injection and vacuum pumping control subsystem, a water injection control subsystem, a true-triaxial rock core holding and control subsystem, and a dehydration metering subsystem. The gas injection pipe hole and water injection pipe hole of the true-triaxial rock core holding and control subsystem are respectively connected to the gas injection and vacuum pumping control subsystem and the water injection control subsystem, and the outlet end of the true-triaxial rock core holding and control subsystem is connected to the dehydration unit inlet end of the dehydration metering subsystem. The dehydration metering subsystem realizes respective metering of accumulative discharged gas and water mass. The method for determination of the coal rock isothermal desorption curve under saturated water condition is an experimental method carried out based on the device. Through true reappearance of the ground stress field, groundwater pressure field, temperature field and other underground environments where the coal rock is located, coal-seam gas desorption characteristic test is carried out, the device has a clear structure, the data acquisition is reliable, and the result is accurate and credible.

The invention provides a detection technology of ocean eddy variation based on historical similarity cases, belonging to the information technical field. The method is mainly applied to quantitative variation detection of ocean eddy, and the implementation technical scheme thereof is as follows: establishing a historical case library combined with an eddy spatial-temporal characteristic relationship extracted by a rough set method on the basis of expression models of the ocean eddy cases, then calculating the similarity between the current cases and the historical cases to obtain the historical case which is most similar to the current cases, and finally detecting variation of the current eddy cases according to the situation of the historical cases. Compared with the eddy variation studied by the existing dynamic analysis method via ocean water masses and dynamics, the method is simpler and more flexible; and the historical case library can be dynamically updated with self-learning capability, thus being capable of quickly adapting to ocean eddy with complicated spatial-temporal characteristics so as to carry out more reasonable and more accurate variation detection.

A method for operating a continuous flow steam generator with an evaporator heating surface is provided. A target value for a supply water mass flow is fed to a device for adjusting the supply water mass flow. In order to improve the quality of a predictive supply water or mass flow control and to maintain the enthalpy of the flow medium at the evaporator outlet particularly stable especially when load changes occur, a correction factor is taken into consideration during production of the target value for the supply water mass flow. The correction factor is a characteristic of the temporal derivative of enthalpy or the density of the flow medium at the input of one or more heating surfaces.

The invention discloses an all-in-one device for evaporation / condensation heat transmission testing in a micro pipe and a testing method thereof. The device comprises a refrigerant circuit and a heat exchange circuit in testing section, wherein the refrigerant circuit comprises a recovery tank, a power pump, a regulating valve, a refrigerant mass flow meter, a regulating testing circuit in parallel composed of a condensation preheating passage and an evaporation preheating passage, a inner pipe in testing section and a condenser; a inlet of the power pump is connected with the recovery tank; an outlet is connected with the refrigerant mass flow meter; the inlet of the regulating testing circuit in parallel is connected with the refrigerant mass flow meter; the outlet of the regulating testing circuit in parallel is connected with the inner pipe in testing section; a refrigerant outlet of the inner pipe in testing pipe is connected with the condenser; and the heat exchange circuit in testing section comprises a outer pipe in testing section and a heat exchanger, a water heater, a water pump and a water mass flow meter in sequent communication. By using the power pump to control the refrigerant flow and using the evaporation preheater / condensation preheater to control the dryness of the refrigerant and using the heat exchange circuit in testing section to control the heat exchange in the testing section, the invention respectively realizes evaporation and condensation heat transmission testing in a micro pipe.

Starting from a mooring assembly with a fixed mooring point and the combination of at least one rigid arm which, in the moored position, lies above the water surface, a rigid connecting element connected by means of a pivot point therewith and being essentially vertical at rest, and a weight, connected to the assembly and producing at movements of the floating body to and from the mooring point resetting forces acting upon this body in that the ends of the rigid arm and the connecting element respectively, opposite the first pivot point, are connected either with the mooring point on the one hand and the floating body on the other hand or with the floating body on the one hand and the mooring point on the other hand, the invention proposes that the weight is connected to the rigid connecting element. As a result the structure of the rigid arm can be simpler and the assembly will be easier to use.

The invention relates to a process for operating a continuous steam generator. The aim of the invention is to provide, with little technical complexity and for any operating state, a synchronous variation of the feed-water mass flow passing through the evaporator heating surface and of the heat input into the evaporator heating surface. To this end, a regulating device for the discharge of feed-water is allocated to a device for adjusting the feed-water mass flow. The control variable of said regulating device is the feed-water mass flow, while its set-point value in relation to the feed-water mass flow depends on the set-point value associated to the power of the steam generator. The actual value of the feed-water density at the entry of the pre-heater is fed to the regulating device for the discharge of feed-water as one of the input values.

The invention discloses a method for preparing potassium sulfate. The method comprises the following steps: 1) mixing and stirring potassium mixed salt mine, potassium chloride, sodium sulfate and a solvent to obtain a solid-liquid mixture; 2) regulating the solid-liquid volume ratio of the solid-liquid mixture to 1:(3-5), adding a flotation medicament for flotation, and then filtering and separating obtained flotation foam to obtain soft leonite and first mother liquor; 3) mixing the obtained soft leonite and potassium chloride according to the mass ratio of (1.6-2.0): (0.8-1.2), adding a washing solution to basically clean Na<+> in the mixture, and then filtering and separating to obtain a solid phase and second mother liquor; and 4) adding the solid phase in the step 3) into fresh water according to the solid-water mass ratio of (1.0-1.5):1, converting for 1-1.5h at the temperature of 60-70 DEG C, and then cooling, filtering and separating to obtain a potassium sulfate product and third mother liquor. According to the method disclosed by the invention, a byproduct of a salt lake, namely sodium sulfate is fully utilized, fresh water resources are saved in the production process, the production period is shortened, the production efficiency is improved and the production cost is further reduced.

A method for operating a once-through steam generator including an evaporator heating surface is provided. A target value for the supply water mass flow is fed to a device for setting the supply water mass flow, which is predefined using the ratio of the heat flow currently being transferred in the evaporator heating surface from the hot gas to the flow medium to a target enthalpy increase predefined with respect to the desired live steam condition of the flow medium in the evaporator heating surface. A forced-flow steam generator used for carrying out the method is also provided. The heat flow transferred from the hot gas to the flow medium is ascertained for this purpose allowing for a specific temperature value characteristic of the current temperature of the hot gas at the evaporator inlet and a specific mass flow value characteristic for the current mass flow of the hot gas.

The invention discloses a microbe agent for purifying aquaculture water mass and a method for preparation, which belongs to the aquaculture water mass technique field. The agent comprises the following parts by weight: bran 80-90%, chaff 3-15%, glucose 2-5%, alta-mud 1-5%, K2HPO4 1-3% and VD 0.01-0.10%, wherein equal quantity of water is charged to dispense the solid culture medium, the preservation number is CGMCC No.2288, the germ is Bacillus subtilis BJ which is prepared by classes of fermentation. The agent is cheap in cost, high in bacterial content and the quality assured period is over one year and a half, the pH value of culture period water mass is between 8.02 and 8.60 stably after using, ammonia nitrogen can be reduced to safe level after 5-7 d, nitrite can be maintained in the safe density, the culture success rate can be improved greatly and can be spreaded and used in the aquaculture places.

The invention discloses an ecological floating bed. The ecological floating bed comprises a floating bed frame, and a first box body layer fixed below the floating bed frame, wherein a second box body layer with an opened top surface is hung below the first box body layer; a plurality of through holes are formed in both bottom and sidewall of the first box body layer; a plant planting substrate is filled in the first box body layer; broken aerated concrete is filled in the second box body layer; the plant planting substrate comprises the broken aerated concrete, a plant fertilizer, waste carbonized bamboo particles, and limestone fine gravels, which are filled in sequence. According to the ecological floating bed, the planting substrate in the first box body, and humus produced by the planting substrate consumed in the production of a plant and microorganisms can expose from the through holes and then be scattered into the second box body, thus the growth of a microbial film can be promoted, and a certain food and water environment is provided for benthonic mollusk, fish and other aquatic animals and induces the breeding; intelligent bionic aquatic plants are also fixed to the floating bed frame, which can perform aeration and oxygenation on water mass to increase the oxygen content in the water mass.

This invention relates to a gliding underwater embarkation platform that can be extensively used in water quality monitoring of water mass, underwater resource survey and environmental monitoring. It mainly comprises of a gliding housing, a variable buoyancy system, a gesture adjustment system and a communications guiding system. During operation, the gesture adjustment hydraulic pump will be applied to control the back and forth flow of mercury in the system in order to change the position of the center of gravity. Due to the assistance of the micro-electromagnetic valve and micro pump of the variable buoyancy system, the water drainage volume of the oil bag will be changed to realize the buoyancy variance, so as to make the free gliding in the sea with the combination of the three.

The invention relates to a safe transferring plan and transferring system used for transferring a low-concentration gas in a coal mine. The invention is characterized in that water continuously flows around an inner wall of a ground positive-pressure gas transferring pipeline to form an annular flow, and the low-concentration gas flows in an annular water seal formed by the annular flow, and the gas flow is obstructed by a column water-group arranged at intervals on the gas transferring direction to form an end-face water seal of the gas, then the low-concentration gas forms an intermittent plunger gas flow in the annular water flow and the end-face water seal. The arrangement of the transferring system of the invention is comparatively simple and is easy for operation, and the energy-cost is low and the gas-supply pressure is stable, and the rest gas can be dispelled automatically, so as to guarantee that the extracting pump can work normally with a safe and reliable capability and a better dehydration effect.

The invention discloses a surface self-cleaning carbon nitride Fenton-photocatalytic nanofiltration membrane and a preparation method thereof and belongs to the fields of water treatment membrane materials and preparation processes of the water treatment membrane materials. The method comprises selecting carbon nitride photocatalysts which integrate plasticity of polymer molecules and chemical stability of carbon materials and performing surface modification, chemical modification, Fenton-like agent compounding and the like to prepare a multifunctional water treatment membrane. On the one hand, inter-element triangular nanopores formed by carbon nitride can provide stable natural channels for rapid passage of water molecules; on the other hand, through irradiated catalytic degradation andiron-containing agent Fenton-like oxidation, in-situ degradation of nanofiltration retained pollutants can be achieved. The surface self-cleaning carbon nitride Fenton-photocatalytic nanofiltration membrane provides a new way for solving the problem of membrane contamination difficult for traditional nanofiltration membrane materials and has the advantages of being simple in preparation method, low in cost, resistant to pollution, low in water mass transfer resistance and the like, thereby being applicable to application to the field of water purification.

A system and method is provided for an asymmetric formulation whereby multiple water masses mix together and generate an ‘eddy-like’ feature. Given the core and the shore profiles, embodiments produce a three-dimensional eddy representation for a particular ocean region based on three (core, inshore and offshore) specified profiles. The formulation employs parameter-based feature models and is generalized to ocean regions having asymmetric eddy water masses. Embodiments apply to regions in the global coastal ocean, providing nowcasting and forecasting in any oceanic region where eddies are part of the overall circulation. Examples of such eddies are off of Cape São Tomé (CST) and Cape Frio (CF) along the southeastern coast of Brazil.

The invention relates to a rotary water ecological restoration device and application of the rotary water ecological restoration device. The rotary water ecological restoration device comprises a rotating central structure, a plurality of rotating power and conveying structures and flotation cultivating concatenating structure units, wherein each rotating power and conveying structure is respectively connected with a flotage platform of the rotating central structure and is radially distributed around the rotating central structure; and the flotation cultivating concatenating structure units are distributed around the rotating central structure in an symmetric or asymmetric way. According to the rotary water ecological restoration device, the photosynthesis is fully utilized to promote the growth of the plant in a flotation wetland; the device is driven to automatically rotate by virtue of the energy produced by the water flowing above the water, so that the scope and capacity of the plants, animals and microorganisms to catch the eutrophic substances in the water mass are improved, the oxygen dissolving capacity of the water mass is improved, and harmful substances to the water ecology can be sped up to be extracted from the bottom mud; and the rotary water ecological restoration device has the characteristics of being high in water ecological restoration efficiency and low in operation cost, is very suitable for being applied to large-scale flotation plant and ecological aquaculture, and is excellent in ecological benefit, social benefit, economic benefit and landscape effect.

This invention relates to a three-stream atomizing nozzle for use with a rewet shower. The nozzle has an air stream divider that separates the atomizing air from the source into three streams. The first stream is a straight air stream staying closest to and around the atomized water jet. The second stream is a swirl running around the first straight stream. The third stream is also a straight stream that wraps around the first straight stream and the second swirl. The nozzle also has a mixing chamber in which the three air streams are mixed together for the atomizing purpose. The nozzle can from the combination of the three air streams produce fine water droplets that are suitable for a paper rewet shower and more importantly creates a tailorable water mass profile. The mass profile can be tailored into a shape that is close to a square shape which is ideal for rewet showers as a square profile creates minimal coupling between adjacent zones.

A method for operating a directly heated, solar-thermal steam generator is provided. As per the method, a nominal value Ms for the supply water mass flow M is conducted to an apparatus for adjusting the supply water mass flow M wherein, at the adjustment of the nominal value Ms for the supply water mass flow M, account is taken of a correction value KT, by which the thermal effects of storage or withdrawal of thermal energy in an evaporator are corrected.

The invention relates to a tube refrigerant oil-bearing evaporation / condensation heat transfer testing integrated device and a test method thereof. The device is characterized by comprising a refrigerant loop, a lubricating oil injection loop and an evaporation / condensation test section heat transfer loop, wherein the refrigerant loop is formed by sequentially connecting a condenser, a recycling tank, a power pump, a regulation valve, a refrigerant mass flow meter, a uniform mediating tank, an evaporation preheating / condensation preheating parallel selection channel, an evaporation / condensation test section, a heater, a high efficiency oil separator and another condenser through pipelines; the lubricating oil injection loop is formed by sequentially connecting a high efficiency oil separator, an oil storage device, a high pressure oil pump, a lubricating oil mass flow meter, a control valve, a uniform mediating tank, an evaporation preheating / condensation preheating parallel selection channel, a refrigerant evaporation / condensation test section, a heater and another high efficiency oil separator through pipelines; and the evaporation / condensation test section heat transfer loop is formed by sequentially connecting a heat exchanger, a water heater, a water pump and a water mass flow meter through pipelines. The invention can carry out tube evaporation / condensation heat transfer testing on different refrigerants and the testing of the influence on the evaporation and condensation heat transfer characteristics of a heat exchange tube and is convenient and reliable.

In accordance with the present invention, an oscillation suppression system is provided to inhibit vertical and rotational resonance of a floating platform. The oscillation suppression system includes energy absorption chambers mounted in or about the hull of the floating platform. The chambers may be separately attached or integrated as part of the structure. The chambers are comprised of gas in an upper portion, and water mass in a lower portion. The chambers are closed or partially vented at the upper ends and open at their bottom ends. The enclosed gas in the upper portion of the chamber acts as a gas spring reacting against the floating platform and the water mass. The suppression of resonant oscillations of the floating platform system is accomplished through the gas-spring pressure changes acting on the floating platform system in phase opposition to external forces.

This invention relates to a three-stream atomizing nozzle for use with a rewet shower. The nozzle has an air stream divider that separates the atomizing air from the source into three streams. The first stream is a straight air stream staying closest to and around the atomized water jet. The second stream is a swirl running around the first straight stream. The third stream is also a straight stream that wraps around the first straight stream and the second swirl. The nozzle also has a mixing chamber in which the three air streams are mixed together for the atomizing purpose. The nozzle can from the combination of the three air streams produce fine water droplets that are suitable for a paper rewet shower and more importantly creates a tailorable water mass profile. The mass profile can be tailored into a shape that is close to a square shape which is ideal for rewet showers as a square profile creates minimal coupling between adjacent zones.