395 results about "Concentration Unit" patented technology

A method of monitoring the movement of fluid through a fluid distribution network is described. The introduction of an additive to fluid is controlled at a control point in a fluid distribution network, and a concentration pulse in a concentration of the additive in the fluid is generated. Amounts of the additive are measured as a function of time using a plurality of sensor units located at identified locations in the fluid distribution network over a geographic area, wherein the sensor units communicate with one or more communication networks. Measurement data corresponding to measured amounts of the additive is received from the sensor units with a computer system, and the measurement data is processed with the computer system to generate information indicative of movement of fluid in the fluid distribution network. The information can be displayed on a geographic map of the fluid distribution networ

A hydrogen gas sensor element and a hydrogen gas concentration part which has, on a membrane thermally isolated from a substrate, a heater, a temperature sensor and a hydrogen gas absorbing substance are provided in the same microchamber. Hydrogen gas is released from the concentration part and highly concentrated due to heat applied by the heater, and the highly concentrated hydrogen gas is measured by the hydrogen gas sensor element. Because the hydrogen gas absorbing substance exhibits selectivity for hydrogen gas, there is no need for the hydrogen gas sensor element to exhibit selectivity for hydrogen gas. An airflow limiting part is provided in the exit/entrance opening of the microchamber, whereby dilution of hydrogen gas by the entrance of external airflow is prevented. Introduction of the gas to be investigated into the microchamber is performed at predetermined intervals using an introduction means such as a pump.

An automated system for concentrating potentially harmful substances from various water types or other non-viscous liquids to facilitate detection of those substances is disclosed herein. The automated system comprises a water pressure driven or pump driven concentration unit that filters the test fluid through a hollow-fiber filter. Material collected on the filter is backflushed into a collection vessel by passing a small volume of sterile solution through the filter in the reverse direction. The automated system can be configured to be portable or to be integrated into a continuous liquid stream for online monitoring of test fluids. Optionally, an electronic signal at the end of the backflush sequence triggers a detector, such as an automated array biosensor, to begin processing and analyzing the sample.

Disclosed herein is an automatic meter reading system for an underground distribution line using wired/wireless communication. The system includes at least one Data Concentration Unit (DCU), at least one Wireless Gathering Unit (WGU), and at least one wireless communication modem. The DCU is installed in a ground transformer, and sends meter reading data to an underground high-voltage distribution line (DL) using a Frequency Division Duplex (FDD) power line communication repeating method. The WGU is installed on a ground rising pipe or at a multi-consumer lead-in wire, and sets up a higher wireless mesh network and a lower wireless mesh network. The wireless communication modem sets up the lower wireless mesh network along with the WGU and the wireless communication modems, gathers the meter reading data, stores the gathered meter reading data, and transfers the stored meter reading data to the DCU through the WGU.

The present invention provides a positive electrode active material for a non-aqueous electrolyte-based secondary battery, composed of a lithium/nickel composite oxide with high capacity, low cost and excellent heat stability, an industrially suitable production method therefor, and a high safety non-aqueous electrolyte-based secondary battery. A lithium/nickel composite oxide is produced by the following steps (a) to (c): (a) Nickel hydroxide or nickel oxyhydroxide having a specified component is prepared at a temperature of 600 to 1100° C., under air atmosphere. (b) Fired powders are prepared after mixing said nickel oxide and a lithium compound, and then by firing at a maximal temperature range of 650 to 850° C., under oxygen atmosphere. (c) Obtained fired powders are washed with water within a time satisfying the following equation (2) and then filtered and dried.

A<B/40   (2)

wherein, A represents washing time represented by unit of minute; and B represents slurry concentration represented by unit of g/L).

A spiral inertial filtration device is capable of high-throughput (1 mL/min), high-purity particle separation while concentrating recovered target particles by more than an order of magnitude. Large fractions of sample fluid are removed from a microchannel without disruption of concentrated particle streams by taking advantage of particle focusing in inertial spiral microfluidics, which is achieved by balancing inertial lift forces and Dean drag forces. To enable the calculation of channel geometries in the device for specific concentration factors, an equivalent circuit model was developed and experimentally validated. Large particle concentration factors were achieved by maintaining either average fluid velocity or Dean number throughout the entire length of the channel during the incremental removal of sample fluid. Also provided is the ability to simultaneously separate more than one particle from the same sample.

The invention discloses an analysis method of remote sensing inversion of water color parameters of inland class II water. According to the method, inherent optical quantity of the class II water is inverted with an improved QAA (quasi-analytical algorithm), and concentration inversion of the water color parameters such as chlorophyll a and suspended matters is realized based on the inverted inherent optical quantity of the class II water. The method comprises specific steps as follows: (1), data of remote sensing reflectance above the surface of the water is input, parameter inversion of the inherent optical quantity of the water is realized based on the improved QAA, and absorption coefficients and scattering coefficients of the water and absorption coefficients of phytoplankton are acquired; (2), concentration data of the chlorophyll a and concentration data of the suspended matters of the water at a sampling point are input, a chlorophyll a concentration quantitative inversion model is established according to the concentration data of chlorophyll a and the absorption coefficients of the phytoplankton, and a suspended matter concentration quantitative inversion model is established according to the concentration data of the suspended matters and the absorption coefficients of the water after removal of pure water; (3), hyperspectral data finishing atmospheric correction are input, and concentration inversion of the water color parameters of the inland class II water in a monitoring area is realized according to the step (1) and the step (2).

A silicon wafer is doped with boron and germanium in a range that satisfies a relational expression defined by: -0.8.times.10.sup.-3.ltoreq- .4.64.times.10.sup.-24.times.[Ge]-2.69.times.10.sup.-23.times.[B].ltoreq.1- .5.times.10.sup.-3. This can reduce the miss-fit dislocation which might be induced when an epitaxial layer is grown over the silicon wafer that has been added with boron in high concentration. It is to be noted that in the above relational expression, the [B] denotes a boron concentration, while the [Ge] denotes a germanium concentration and a concentration unit is indicated by atoms/cm.sup.3.

The invention discloses a garbage fly ash water washing liquid evaporation desalination system and method. The system comprises two individual evaporative concentration and evaporation crystallization units. A compressor provides desired heat energy for the units and keeps heat energy balance. The evaporative concentration unit comprises a preheater, a falling film evaporator and a falling film separator. Through garbage fly ash water washing liquid pre-heating and repeated evaporation, the material is concentrated. The evaporation crystallization unit comprises a forced circulation separator and a forced circulation evaporator. Through further evaporation of the concentrate, the material is in a saturated or oversaturated state and salt crystals are precipitated. Through settlement condensation adopting a thickener and separation adopting a centrifuge, the salt in the garbage fly ash water washing liquid can be separated finally. The system adapts to the garbage fly ash water washing liquid characteristics of complex components and high salt content, has the characteristics of large evaporation capability, operation stability and smooth desalination and guarantees large scale stable treatment on the garbage fly ash water washing liquid.

The invention discloses a full-load precise ammonia spraying system with functions of online speed field leveling and concentration field measuring. The full-load precise ammonia spraying system comprises a zone flue gas speed measuring device and a zone NOx (oxynitride) concentration measuring device corresponding to a vertical flue zone between a first corner fixed flow guide plate and a primaryammonia spraying grid, and a secondary micro-ammonia spraying and supplementing system, a zone speed measuring device, and a zone ammonia and nitrogen integrated concentration measuring device whichare arranged from top to bottom corresponding to each zone between a flow equalizer and a catalyst layer; a zone ammonia and nitrogen integrated concentration measuring device is arranged corresponding to each zone between the catalyst layer and an exit flue; a zone flue gas speed measuring device, a zone NOx concentration measuring device, a zone speed measuring device and the zone ammonia and nitrogen integrated concentration measuring device are used for respectively transmitting the measuring data to an input port of a control unit, and the control unit is used for generating a control adjusting signal, and sending to a primary ammonia spraying grid, a dynamic flow field leveling flow guide device, and a secondary micro-ammonia spraying and supplementing system via an output end. The full-load precise ammonia spraying system has the advantages that the speed field in front of the catalyst can be flexibly leveled according to the characteristics of the flue gas flow field formed bythe combination of different coal types, different loads and different combustors.

The invention relates to a desulfurization wastewater zero discharge treatment system and method by utilizing flue gas and electrodialysis. The system comprises a chemical precipitation flocculation unit, a lime-flue gas softening unit, a membrane concentration unit and an evaporation and crystallization unit; based on the system, firstly the chemical precipitation flocculation unit is utilized for treating desulfurization wastewater raw water, then lime milk and CO2 in the flue gas of a power plant are utilized for efficiently removing hardness ions such as calcium and magnesium in effluent of the chemical precipitation flocculation unit, and carbon dioxide emission reduction is realized; softening effluent is subjected to ultrafiltration treatment and then enters an ion selective electrodialysis unit to be subjected to efficient concentration, so that NaCl concentrated water is obtained, and further NaCl industrial salt is obtained through evaporation crystallization; electrodialysis fresh water passes through a low pressure volume-type reverse osmosis membrane, so that recyclable fresh water is obtained; and reverse osmosis concentrated water reenters an electrodialysis unit. The system and method which are provided by the invention have the advantages that CO2 in the flue gas is utilized for replacing expensive sodium carbonate, so that the softening cost is reduced, and CO2 emission reduction is also promoted; and an electrodialysis process is introduced for concentrating, so that electrodialysis and reverse osmosis are respectively under the optimal treatment conditions, and energy consumption is reduced.

The invention discloses a method combining hyper-spectrum and wavelength modulation for simultaneous measurement of high-temperature gas two-dimensional transient temperature field and concentration field. The method includes: arranging a laser array in a to-be-measured high-temperature area, and conducting hyperspectral scanning on the to-be-measured area to obtain water vapor absorption spectral line information, and carrying out demodulation with a digital phase lock technology to obtain each harmonic signal, then conducting background deduction first harmonic normalization processing, extracting the maximum amplitude value of the signal to measure regional temperature field and water vapor concentration field, and during measuring, conducting grid discretization treatment on the to-be-measured area, arranging laser beam at each row and each column of the grid to conduct broad spectrum scanning on the characteristic spectral line of the to-be-measured gas under a wavelength modulation mode, and using intelligent optimization algorithm to realize inversion of the temperature field and gas concentration field. The measurement method provided by the invention combines hyper-spectrum and wavelength modulation spectroscopy technologies, and is especially suitable for monitoring of high-temperature gas two-dimensional temperature field and concentration field on harsh industrial sites.

The invention relates to the technical field of sewage treatment, in particular to a sewage resourcesization treatment method for sewage reuse water, liquid zero discharge and sewage resourcesization. According to the method, a chemical reaction sediment unit, an organic matter deep treatment unit and a membrane water regeneration unit are included, sewage is treated to obtain reuse water, concentrated water meeting the discharge standard and a small number of solid mud cakes; the sewage resourcesization treatment method is a low-consumption sustainable sewage regeneration method; a concentrated water deep treatment unit, a concentrated water resin processing unit, a film separation concentration unit, an evaporation separation and crystallization unit and a crystallization mother liquid drying unit are further included in the sewage resourcesization treatment method; the evaporation separation and crystallization unit comprises a plurality of evaporation crystallization devices, a plurality of thermal centrifugal separators, a plurality of cold centrifugal separators and a crystallization mother liquid spray dryer; the concentrated water treated in the membrane water regeneration unit is separated to obtain reuse water, sodium chloride, sodium sulfate, potassium chloride and a small amount of carnallite solid waste. By means of the method, sewage resourcesizaiton is achieved, and long-time stable operation can be achieved.

The invention discloses a DMAC, DMF or DMSO waste solution dehydrated refining recovery process and system. A waste solution is preheated by a feeding preheater and continuously feeds from a falling-film evaporator; the waste solution is heated by the falling-film evaporator and then is subjected to gas-liquid separation in a gas-liquid separation chamber; a vapor phase enters a MVR concentratingtower; an MVR heat pump group pressurizes and heats waste solution steam generated by the MVR concentrating tower to serve as a heat source of the falling-film evaporator; the concentration of a low-concentration waste solution delivered to an MVR concentration unit is improved; the low-concentration waste solution of which the concentration is improved is delivered to a dehydration unit for dehydrating; the MVR concentration unit and the dehydration unit extract wastewater which is fed into a steam stripping de-light unit and a steam stripping de-light tower; by one-time steam heating, steamrising to the tower top is condensed and refluxed by a condenser of the steam stripping de-light tower; an evaporation de-heavy unit and a crude product unit extract reboiling substances which are fedinto a reboiling treatment unit. The DMAC, DMF or DMSO waste solution dehydrated refining recovery process and system disclosed by the invention carry out solvent recovery on the low-concentration waste solution so as to remove contained trace metal ions.

The invention relates to detection of heavy metal ions, in particular to a method and a device for detecting low-concentration heavy metal ions. The method comprises the following steps of: inserting an ion selective electrode into a solution containing ions to be detected at high concentration of 10<-2> to 10<-5>M and applying pulse current of -1*10<-4> to -1*10<2> mu A to ensure that two adjacent kinds of high-concentration solution to be detected can achieve a Nernst response, and adhering a polymer sensitive film to the bottom of the ion selective electrode; measuring the Nernst response of the solution containing the ions to be detected at the concentration of below a reference until the lowest detection limit of the ions is reached, wherein a potential value of the solution containing lower-concentration ions to be detected is used as the reference; drawing a standard curve according to the detected value and current and solution concentration values; and measuring the solution containing the ions to be detected at the unknown concentration by a gradually approaching method, and acquiring the concentration of a solution sample according to the applied current, the acquired potential value and the standard curve. By the method and the device, the detection limit of the ion selective electrode is obviously reduced, and the sensitivity of the electrode is improved.

The invention discloses an automobile electronic control system and an automobile. The framework comprises a vehicle-mounted ethernet network, multiple sensors, multiple data concentration units and multiple domain controller processing units. The vehicle-mounted ethernet network comprises a backbone network bus arranged in an automobile body. The sensors are distributed at different positions ofthe automobile body. The data concentration units are each connected with the backbone network bus. Each data concentration unit is connected with at least one sensor. The multiple domain controller processing units are each connected with the backbone network bus. The multiple domain controller processing units conduct automatic drive movement control on the automobile body according to perception data of a sensor in the backbone network bus. Connection of the multiple sensors and wire harness arrangement of vehicles are simplified.

The invention discloses a method for producing hydrogen from biogas biomass. The method comprises the following four major procedures: pre-purification, concentration, hydrogen production and hydrogenextraction. After biogas has undergone pre-purification and desulfurization, the biogas is pressurized and enters the pressure-swing adsorption and concentration unit, and methane is concentrated; after pressurization and preheating, further desulfurization is performed in virtue of a fine desulfurization tower; intermediate gas obtained after fine desulfurization and process steam are further preheated and then enter a reformer, and methane reacts with water vapor to produce CO, CO2, and H2; waste heat produced by reforming can by-produce steam which is output; CO is converted into CO2 through multiple-stage heat recovery and medium-temperature conversion so as to obtain more hydrogen and increase hydrogen yield; converted gas enters the pressure-swing adsorption hydrogen extraction procedure after multiple-stage heat recovery and cooling so as to obtain pure hydrogen and produce by-products such as steam and sulfur. In concentration of methane in the concentration procedure, the once-through yield of methane can reach 95% or more; remaining effective components provide equipment with heat energy through the recycling of tail gas; so the total utilization rate of methane is almost 100%, and full recovery of methane is realized.

The invention discloses a miniature extraction and concentration unit and a preparation producing process thereof. The unit comprises a concentration tank, an extraction tank and an accumulation groove are arranged on a support in sequence, the concentration tank (1) and the extraction tank (2) are communicated through a pipe (8), the concentration tank is communicated with a condenser through another pipe (9), a liquid pump (21) and a pipe filter (20) are connected between the pipe (8) and the bottom of the extraction tank in sequence, a vacuum converter (7) is arranged between a condenser (4) and the extraction tank, the upper cavity of the vacuum converter is connected with a vacuum pump (16). The producing process is as follows: subpressure extraction, subpressure concentration, subpressure refluxing treatment and repeated cycle can be carried on for Chinese herbal medical materials until the effective components of the extracting liquid inside the extraction tank can be extracted completely, then the extracting liquid is absorbed into the concentration tank for continuous concentration until the concentrating liquid inside the concentration tank meets the requirements. The extraction and concentration unit of the invention is characterized by the compact structure, the small space being taken up, the preparation process of the invention has the advantages of saving energy and having high efficiency, being scientific and reasonable, and effectively improving the quality of pharmaceutical preparations and extraction efficiency.

The present invention relates to the field of industrial wastewater treatment, and specifically relates to a high concentration wastewater zero-emission method. According to the high concentration wastewater zero-emission method, nanofiltration, disc tube reverse osmosis (dt-ro) and evaporation crystallization are used for treatment of high concentration wastewater. Firstly the nanofiltration is used for removing hardness and other multivalent ions and some organic matters in wastewater, then the disc tube reverse osmosis (dt-ro) is used for deep concentration treatment of the high concentration wastewater with the hardness and some organic matters being removed, and salt solids in concentration water are crystallized by evaporation crystallization treatment of reverse osmosis concentration water after disc tube reverse osmosis deep concentration treatment, and then are concentrated for drying treatment. The disc tube reverse osmosis producing water and the evaporation and crystallization producing water produced in the treatment process both can be reused in the production process. According to the high concentration wastewater zero-emission method, the high concentration wastewater emission problem can be solved, meanwhile the recovery of water resources is maximized, and high concentration wastewater zero-emission is basically realized.

The invention relates to a storage system and method for a concentration type system. The storage system for the concentration type system comprises a requirement analysis module, a solid hard disc and a mechanical hard disc; wherein the requirement analysis module is used for analyzing the system index of data needed to be stored in the system and respectively sending the data into the solid hard disc and the mechanical hard disc for storage; the solid hard disc is used for storing data needed to be subjected to a large amount of reading and writing operation and frequent implementation of input and output operation; and the mechanical hard disc is used for storing backups or data with low time validity and limited random input and output. According to the storage system, the mechanic hard disc and the solid hard disc are used for layering storage, the characteristic of high I/O (input/output) of the solid hard disc can be maximally utilized; the dependence on a storage network is reduced, a local hard disc can be directly used for carrying out processing and backup of tickets, and the cost performance of a storage scheme is greatly improved; and the cost of construction and maintenance is lowered.

The invention relates to a method and a system for treating coal chemical wastewater in a zero-discharge manner, and belongs to the field of technologies for treating water in an environment-friendly manner. The method for treating the coal chemical wastewater in the zero-discharge manner includes carrying out anaerobic biological desulfurization on the coal chemical wastewater to convert sulfate in the wastewater into hydrogen sulfide; carrying out hydrolytic acidification to improve the biodegradability of the wastewater; carrying out secondary A/O (anoxic-oxic) biochemical treatment, ozone oxidation, aeration biochemical treatment, softening, ultra-filtration and secondary reverse osmosis; converting Ca2+ into Na+ by means of ion exchange; generating purified water by means of membrane concentration and generating sodium chloride which is crystal salt by means of evaporation and crystallization. The system for treating the coal chemical wastewater in the zero-discharge manner comprises a buffer pool, an anaerobic biological desulfurization unit, a hydrolytic acidification unit, a secondary A/O biochemical unit, an ozone oxidation unit, an intermediate water pool, an aeration biological filter, a softening unit, an ultra-filtration unit, a secondary reverse osmosis unit, an ion exchange unit, a membrane concentration unit and an evaporation and crystallization unit which are sequentially connected with one another. The method and the system have the advantages that the problems of mixed salt hazardous waste and difficulty in controlling operation can be fundamentally solved by the aid of the method and the system, and the crystal salt can be recycled.

The invention belongs to the technical field of acousto-optic detection, and in particular relates to a mixed gas temperature/concentration field measuring method and device based on acousto-optic fusion. The mixed gas temperature/concentration field measuring method comprises the following steps: according to a plurality of acoustic waves obtained through measurement and calculation, the acoustic speed of a laser path with fixed wave length during measurement area penetration, and a spectrum integral absorption rate, and with the combination of an index SVD inverse algorithm, confirming the acoustic speed and the spectral absorption coefficient distribution inside a gas two-dimensional area; by virtue of the function relationship between the acoustic speed and the spectral absorption coefficient and the temperature and the concentration of mixed gases, simultaneously reconstructing a temperature field and a concentration field of the mixed gases in the measurement area. According to the mixed gas temperature/concentration field measuring device, two acoustic wave frequencies with narrow bandwidth are adopted to measure the phase difference of transmitting-receiving signals, accurate measurement on the acoustic wave transmission time is achieved, and a fixed spectral integral absorption rate can be obtained according to the ratio of the laser intensity received by a detector and the intensity of incident laser of a collimator. The method and the device can be applied to multiple fields of industrial production and living, and particularly monitoring and control on the combustion process inside a furnace.

The invention relates to a system and a method for stably controlling the concentration ratio of circulating water in a thermal power plant. The method comprises the following steps of: obtaining historical data of the water supplement quantity and pollution discharge water quantity of a circulating water system of a thermal generator set and the liquid level of a cooling tower, obtaining real-time data of evaporation air blowing loss of the circulating water system through the mode of water balance, and establishing a circulating water evaporation air blowing loss prediction model by taking the evaporation air blowing loss as a dependent variable and taking an online parameter closely related to the evaporation loss of a thermal generator set as an independent variable; carrying out a dynamic simulation test on the circulating water system to obtain a reasonable value of the concentration ratio of the circulating water system, taking the value as an input value of the circulating water evaporation air blowing loss prediction model, and calculating the real-time water supplement quantity and pollution discharge water quantity of the circulating water system for regulating and controlling the water quantity. The method can maintain the stable control of the concentration ratio of the circulating water of a thermal power plant for a long time, has an obvious water-saving effect,and can prevent scaling and corrosion of condenser pipes.

The invention relates to a treatment system for high-salt high-concentration organic wastewater and a method. The system comprises an evaporation concentration unit, an electrocatalytic oxidation unitand a burning unit, wherein the evaporation concentration unit comprises an evaporation concentrator, a separator, a preheater, a condenser, a vacuum pump and a conveying pump; the electrocatalytic oxidation unit comprises a direct current power supply, a circulating cylinder, an electrocatalytic oxidation tank and a drug dosing system; the burning unit comprises a low-temperature burning chamber, a high-temperature burning chamber, a waste heat recovering device and a tail gas purifying device. The invention also provides a treatment method for the high-salt high-concentration organic wastewater. According to the invention, the characteristics of evaporation concentration method, electrocatalytic oxidation method and burning method are combined, the treatment efficiency for the high-salthigh-concentration organic wastewater is high, the adaptability to the concentration change of the wastewater is high, the treatment cost is low and the requirement of wastewater emission after reaching standard is met.