52 results about "Midstream" patented technology

The invention relates to an apparatus for a layered undisturbed soil seepage experiment. The apparatus comprises a pedestal, a seepage column connected to the pedestal, an upper end cover on the seepage column, a flowmeter, a silicone tube connected with the flowmeter, an overflow tank connected with the flowmeter through the silicone tube and a multi-parameter analyzer connected with a sensor onthe seepage column through a signal line. The invention can be used for determining penetration coefficient and dispersion coefficient in undisturbed soil in production, researching on influence of soil amendment on soil mechanical properties, researching on influences of leaching of different solutions on soil structure and influence of soil midstream on unsaturated zone soil and underground water, can also be applied to parameter determination in the relevant field of solute migration and can be used as a teaching apparatus.

An apparatus for the sanitary and simple collection of midstream urine discharges from medical patients. Presently-preferred embodiments of the present invention include a collection chamber that is adapted to allow for the collection of a midstream portion of a urine discharge. By selectively allowing the initial portion of the urine discharge to escape a collection chamber, the embodiments of the present invention provide for the collection of the midstream portion of a urine discharge.

To provide a transfer chamber capable of replacing a chemical filter without affecting an internal atmosphere, and shortening or eliminating stop time of a transfer process of a wafer (W) associated with replacement of the chemical filter. The transfer chamber transfers the wafer (W) to or from a processing device (6) by using a transfer robot (2) provided thereinside, and includes a circulation path (CL1) formed inside of a transfer chamber (1) to circulate gas, a chemical filter unit (7) provided in the midstream of the circulation path (CL1), and a connecting and disconnecting means (8) which switches connection and disconnection of the chemical filter unit (7) to and from the circulation path (CL1).

The invention discloses a disposable closed middle urine retention device, which comprises a funnel, the funnel is fixedly connected with a pipeline through a threaded interface, a two-way valve is installed on the pipeline, and the pipeline is connected with a retractable bellows through a screw thread. It is fixedly connected, the flexible bellows communicates with the urine storage container, and one side of the pipeline is connected with an anti-blocking gas filling device. The present invention can conveniently collect the mid-section urine of patients with urinary incontinence, reducing cumbersome operation steps; it can also ensure the airtightness of the container during the urine collection process, so as to reduce the possibility of urine specimens being polluted and avoid secondary contamination. Pollution, to ensure the authenticity of the test results, to eliminate the original problem of not being easy to hold the container, and to avoid contamination of the bed sheets.

The invention discloses a method for continuously producing biological butanol by fermentation, separation and coupling of a static bed. The method comprises the following steps of: filling a modified immobilized medium into the static bed, and circularly connecting in series with a bioreactor; incubating a butanol producing strain into the bioreactor, culturing the butanol producing strain in a fermentation medium, circulating fermentation liquor between the static bed and the bioreactor, and gradually absorbing free thallus cells into the static bed; pumping the fermentation liquor into a pervaporation membrane module for separation when the concentration of the butanol in the bioreactor is between 3 and 7g / L, collecting penetrating fluid, and returning liquid intercepted by a membrane to the bioreactor for continuous use; meanwhile, adding the fermentation medium into the midstream of the bioreactor, and continuously fermenting to produce the butanol. The method obviously weakens the pollution of the pervaporation membrane existing in the process of in situ separation and coupling, prolongs the operation time and service life of the membrane, eliminates butanol product inhibition in a fermentation process, and realizes the high-efficient and continuous production of the biological butanol.

An apparatus for the sanitary and simple collection of mid-stream urine discharges from medical patients. Presently-preferred embodiments of the present invention include a collection chamber that is adapted to allow for the collection of a midstream portion of a urine discharge. By selectively allowing the initial portion of the urine discharge to escape a collection chamber, the embodiments of the present invention provide for the collection of the midstream portion of a urine discharge.

The invention discloses a method for cutting low-pollution water load of a venous riverway and belongs to the field of water treatment. The method comprises the following steps: (1) constructing the venous riverway by utilizing a waste riverway or a bottomland near-natural type riverway, (2) arranging an ecological floating island and a shoreside restoration belt in the upper stream of the venous riverway according to the direction of current, (3) arranging an ecological water permeable dike between the upper stream and the midstream of the venous riverway, (4) arranging a submerged type ecological bed and a biological contact oxidation bed in the midstream of the venous riverway, (5) arranging an ecological water permeable dike between the midstream and the lower stream of the venous riverway, and (6) arranging an ecological floating island and a shoreside restoration belt in the lower stream of the venous riverway. Through the application of the method, the removing rates of COD, ammonia nitrogen, total nitrogen and SS can reach over 60 percent respectively so as to make the venous riverway achieve good ecological effect and landscape effect finally. The method realizes the integration of functionality, ecology and landscape of the riverway, achieves the treating effect of clean water, green bank and beautiful scene, and provides guarantee for water quality of a river network area.

The invention discloses an oxidized type catalyzing system for purifying light-duty diesel vehicle tail gas and with good low-temperature ignition performance and a preparation technology thereof. A coating layer of the catalyst is formed by two layers, an area coating technology is utilized by the top layer to achieve the main purpose of quickly igniting fuel oil, and the fuel oil can be fully combusted; meanwhile, HC, CO and NO oxidizing conversion rates can be improved, a lot of heat can be released out, sufficient heat can be provided for a catalyzing unit CDPF at the midstream and downstream of a postprocessing system to perform initiative regeneration, and soot can be burned and eliminated. A carrier material is prepared from composite oxide, an active ingredient contains precious metal of Pt and Pd, and a total content is within 20 to 40g / ft<3>. The whole preparation technology is easy to control, and the catalyst has stable performance, has good low-temperature ignition performance and is suitable for industrial production.

The invention relates to the technical field of water conservancy research, in particular to a tree-shaped river network cascade reservoir hydrodynamic water quality and sediment coupling simulation method and system, and aims to solve the problem of integrity and reliability of river channel terrain sections and control line hydrological station data. After the cascade reservoirs are added, how to solve the problem of joint solution of the river network and the cascade reservoirs is solved, and a Western River midstream river network overall hydrodynamic simulation calculation platform integrating a cascade reservoir scheduling mode and a one-dimensional river network hydrodynamic model is established by relying on latest actually-measured water depth topographic data of the main and branch river channels. Model calculation is based on a one-dimensional Cherry View South Range. a calculation sequence for establishing a model from four levels of a river network, a sub-river network, ariver channel and nodes is provided. The river network and the cascade reservoirs are generalized. The river network and the cascade reservoirs are connected into a whole through the transmission relation of the water conservancy project scheduling mode and the external boundary conditions. All river segments are connected into a calculation whole, synchronous real-time simulation and calculationare achieved, and the research means of river network cascade reservoir scheduling is enriched.

The invention discloses a disposable midstream urine sample collecting device. According to the disposable midstream urine sample collecting device, an outer cup is arranged outside an inner cup in asleeving mode, and the openings of the inner cup and the outer cup are arranged upwards; the upper end of the inner cup and the upper end of the outer cup are in sealed connection to form an interlayer cavity between; the inner cup is composed of a containing cup and an earlystream urine collecting cup which are vertically connected through a round communicating port, a plugging floating ball is accommodated inside the earlystream urine collecting cup, and the diameter of the plugging floating ball is greater than that of the communicating port; the upper end of the containing cup is providedwith a midstream urine sample outflow port, and the containing cup is communicated with the interlayer cavity through the midstream urine sample outflow port; the upper end of the interlayer cavity isconnected with a urine overflow port which is formed outside the outer cup; the lower end of the interlayer cavity is communicated with a midstream urine sample transfer port which is formed outsidethe outer cup; the midstream urine sample transfer port is connected with a collecting tool. The disposable midstream urine sample collecting device can automatically collect midstream urine samples and meanwhile is accurate, simple and reliable; a patient does not need to interrupt a urination process; the disposable midstream urine sample collecting device can avoid the shortcoming that splashedurine can contaminate the patient and the environment; the disposable midstream urine sample collecting device is simple in structure, reasonable in design and low in cost.

The invention relates to an earth and rockfill dam group control cascade water release security computing method considering upstream dam bursting flood. The method includes the steps that flood routing of upstream dam failure is computed; routing of upstream dam failure flood on the midstream is computed; the flood regulation process of the midstream is computed; routing of midstream reservoir continuous burst is computed; routing of the dam failure flood in a downstream reservoir is computed; the flood regulation process of a downstream dam is computed; the working condition is determined. By analyzing early warning on the downstream dam when an upstream dam bursts, the capacity of the downstream control dam is emptied in advance, overtopping is avoided, and dam failure is avoided. By analyzing the flood discharge margin, a very flood discharge facility is additionally arranged or the flood discharge margin is increased to further reduce the reservoir water level before the upstream dam failure flood reaches, and the security of the downstream dam is obviously improved.

A system for applying CO2 gas to improve Cannabis production. A multi-stage system is disclosed including upstream midstream, and downstream stages or subsystems. The upstream subsystem receives and stores gas, particularly CO2 gas. The midstream subsystem is communicatively connected to the upstream subsystem and to the downstream subsystem. It monitors the environment of the downstream subsystem, determines when and how to apply gas to pants growing in the downstream system, acquires gas stored in the upstream subsystem, and distributes it to the downstream system. It also has various monitoring, command and control, management, and reporting features. The downstream subsystem includes one or more plant growth areas or plots, gas distribution means, such as gas conduits, tubes or lines from the midstream subsystem, and the high efficiency, adjustable gas applicator, and various sensing and monitoring devices communicatively connected to the midstream subsystem.

The invention discloses an optical fiber filling factice supply system. The optical fiber filling factice supply system comprises a factice barrel area, a factice conveying area and a feed terminal area. A factice barrel is arranged in the factice barrel area. The discharge port of the factice barrel is communicated with an upstream conveying pipeline. An upstream feed valve is arranged on the upstream conveying pipeline. A first midstream conveying pipeline communicated with the upstream conveying pipeline and a downstream conveying pipeline and a second midstream conveying pipeline communicated with the upstream conveying pipeline and the downstream conveying pipeline are arranged in the factice conveying area. A first oil pump is arranged on the first midstream conveying pipeline. A second oil pump is arranged on the second midstream conveying pipeline. The feed terminal area comprises the downstream conveying pipeline communicated with the first midstream conveying pipeline and the second midstream conveying pipeline, and a material storage barrel. A feed branch is communicated between the material storage barrel and the downstream conveying pipeline. A branch feed valve is arranged on the feed branch. By means of the optical fiber filling factice supply system, the factice barrel can be prevented from being frequently replaced in the optical fiber manufacturing process, labor intensity of workers is lowered, and overall production efficiency is improved.

The invention relates to a ship exhaust gas filtering and waste heat recovery and utilization device and a using method thereof, the device comprises a heat exchange box and a spray box, wherein the heat exchange box is separated into an exhaust gas chamber and a water injection chamber, the exhaust gas chamber and the water injection chamber are respectively provided with multiple layers of filter plates and spiral tubes, the top inlet of the exhaust gas chamber extends out of the heat exchange box through an air intake pipe, and the bottom outlet of the exhaust gas chamber is communicated with the top end of the spiral tube of the exhaust gas chamber. The bottom end of the spiral tube extends out of the heat exchange box through an air guiding tube and extends into the upstream of the spray box, the water injection chamber is respectively connected with a water inlet pipe and a water outlet pipe, a water supply pipe and a spray pipe are externally connected with the end of the wateroutlet pipe through a tee pipe, a sprinkler head is arranged at the end of the spray pipe, the end of the spray pipe extends into the midstream of the spray box, the bottom of the spray box is provided with a sewage discharge pipe, the downstream of the spray box is provided with an air outlet pipe, the air guiding pipe and the water outlet pipe are respectively provided with an air pump and a water pump, and the spray pipe is provided with a valve. The ship exhaust gas filtering and waste heat recovery and utilization device can not only carry out multi-layer filtration and spray decontamination of ship exhaust gas, but also can utilize the waste heat of the ship exhaust gas to supply hot water to the outside, has high heat exchange efficiency and prevents clogging.

The invention provides a midstream urine detection collector. The midstream urine detection collector comprises a funnel-shaped cup mouth, wherein a hand-held part is formed on the side surface of the cup mouth, an upper cavity and a lower cavity are sequentially formed under the cup mouth, the upper cavity and the lower cavity are communicated by a communication hole at the center of the bottom of the upper cavity, the top part of the lower cavity is of an inverted funnel shape, the communication hole is a funnel hole, and a floating ball is arranged in the lower cavity and blocks the communication hole when floating upwards to the top end of the lower cavity. According to the midstream urine detection collector, midstream urine can be effectively collected, and the midstream urine detection collector has simple structure and low cost.

The invention discloses a disposable sealed midstream urine collecting device, which comprises a funnel. The funnel is fixedly connected to a pipeline via a threaded connector; a two-way valve is arranged on the pipeline; the pipeline is fixedly connected to a telescopic corrugated pipe via a screw thread; a telescopic corrugated pipe communicates with a urine storage container; and an anti-blocking inflating device is connected to one side of the pipeline. By adopting the device, midstream urine of a patient with urinary incontinence can be conveniently collected, so that complex operating steps can be reduced; in addition, the container can be kept sealed in a urine collecting process, so that possibility that a urine sample is polluted can be reduced, secondary pollution can be avoided,the truthfulness of a detection result can be guaranteed and the existing problem that the container cannot be held easily can be avoided; and meanwhile, a bed sheet can be also prevented from getting contaminated.

The invention provides an automatic closing type midstream urine collector, which comprises a urine cup with an open upper end and a duct communicated with the urine cup. The bottom of the urine cup is provided with a waste liquid inlet, the waste liquid inlet vertically extends downward to form an intubation tube communicated with a waste liquid cavity, the inner side wall of the urine cup is provided with a liquid inlet and a mask member covering the liquid inlet, the lower part of the mask member is provided with an opening communicated with the liquid inlet, the duct is internally provided with an air guiding chamber communicated with the external air and a liquid guiding chamber communicated with the liquid inlet, and the intubation tube can form an isolation barrier after filling the earlier influent urine to close the forepart urine flowing into the waste liquid cavity earlier in the waste liquid cavity. The collector provided by the invention can collect waste urine of the initial urination stage in the waste liquid cavity, and urine in the intubation tube automatically plays the role of completely isolating and blocking waste urine in the waste liquid cavity from flowing back and completely closing the urine in the waste liquid cavity, so that the forepart urine at the initial stage can be maintained in the waste liquid cavity, and testing needed midstream urine can be completely retained in a test tube, thereby ensuring the test result accuracy.

The invention discloses a reservoir group combined operation scheduling system and method for improving a river and lake relationship. The system is characterized by comprising a hydrological information acquisition module, a reservoir working condition access module, an information transmission module, a data preprocessing module, a river and lake relationship scheduling and decision-making module and a display terminal module. By the system and method, shortcomings of an existing reservoir scheduling technique are overcome so as to realize the objective of benefiting both rivers and lakes, the river midstream-upstream and river-communicated lake reservoir group combined operation scheduling system and method is in favor of improving the river and lake relationship, multi-objective optimal regulation and control is carried out aiming for controlled hydrology and water ecological parameters for representing the river and lake relationship, and cross-basin, multi-objective and integrated water conservancy project group remote combined regulation and control in favor of improving the river and lake relationship is realized.

The invention discloses a flue gas desulphurization waste liquid spray drying treatment apparatus and a treatment method thereof. The apparatus comprises a spray drying tower, the gas inlet of the spray drying tower is connected with a gas inlet flue, the inlet of the gas inlet flue communicates with the upstream or the midstream of the main flue of a boiler to shunt hot flue gas in the main flue of the boiler, the gas outlet of the spray drying tower is connected with a gas outlet flue, the outlet of the gas outlet flue communicates with the downstream of the main flue of the boiler to send the hot flue gas to the main flue of the boiler, a desulphurization waste liquid atomizer is arranged in the top of the spray drying tower, and the inlet of the desulphurization waste liquid atomizer is connected with a desulphurization waste liquid inlet tube. The apparatus and the method have the following advantages: the shunted hot flue gas of the boiler is adopted as a heat source, and exchanges heat with fine mist formed through atomizing a desulphurization waste liquid by the desulphurization waste liquid atomizer in the spray drying tower to make the fine mist of the desulphurization waste liquid be rapidly dried in order to form fine powder, so the desulphurization waste liquid is thoroughly eliminated without fouling or corrosion of the main flue of the boiler or a deduster.

The invention discloses a virtual two-line energy slope channel flow measuring method, and belongs to the technical field of channel flow measurement. Under the non-uniform flow condition, two vertical line flow velocities (one on each of the two sides of a midstream) are measured in a flow cross section, two virtual uniform flow energy slopes are obtained through inverse operation of a vertical line flow velocity model established through a uniform flow Chezy-Manning formula, the two virtual uniform flow energy slopes are substituted into the vertical line flow velocity model, the vertical line flow velocity which exceeds the number of times of a manually measured vertical line is calculated, and finally, the flow is calculated by using a partial flow velocity-area method, so that a great technical support is provided for realizing online monitoring of the flow.

The invention discloses a scramjet and an active control method thereof for stable and self-sustained knocking. A combustion chamber is included, a plurality of pressure sensors are arranged at equalintervals on the side wall of the upstream and midstream of the combustion chamber, and a current propagation position of a knocking wave is determined according to the pressure signals monitored by the corresponding pressure sensor; a plurality of suction holes are formed at equal intervals in the upper and lower side walls of the upstream and midstream of the combustion chamber, and the suctionholes communicate with pipelines in the wall of the combustion chamber and are connected with a suction pump through the pipelines; a current effective suction region is determined according to the real-time information of the propagation position of the knocking wave, the suction pump and electronic valves of each suction hole in the current effective suction region are opened, and the wall boundary suction is carried out in the effective suction region; and a concave cavity is formed in the lower side wall of the downstream of the combustion chamber. The wall boundary suction can suppress the pre-transmission of the knocking wave, the concave cavity can promote the knocking initiation and achieve the forward transmission of the knocking wave, and the two complement each other so that theknocking wave can achieve dynamic stable propagation.

Methods for estimating the solvency potential for various chemical additives used for asphaltene deposit remediation or inhibition have been developed. These methods can be used for remediating or inhibiting asphaltene deposition in various applications including upstream production (e.g., near-wellbore, downhole, flow-lines, separators), midstream processes (e.g., pipe lines, transport, and storage), and downstream (e.g., hydrocarbon refining).

The invention relates to the water conservancy and hydropower industry, in particular to a bilateral underwater undercurrent collision concentrated energy dissipater capable of effectively reducing the transverse velocity component, reducing the transverse impact force of nappes on bank slopes and improving the river channel revetment safety guaranteeing performance. The energy dissipater comprises a downstream river channel; at least one side discharge building is arranged on the sides of the downstream river channel; at least one side discharge building outlet is formed in each side discharge building; the nappes coming from the side discharge building outlets are subjected to energy dissipation in the downstream river channel; and the intersection of the outer nappe edge of each nappe and the bottom of the downstream river channel is located on the side of the midstream of the river channel. With the energy dissipater, the energy and structure distribution of water flows is utilized ingeniously, so that facilities are well protected while energy dissipation is guaranteed, and the energy dissipater is particularly applicable to various flood discharging tunnel energy dissipaters.

The invention discloses a construction method of a shallow tunnel integrated system for improving the quality of the water environment. A river bottom is involved, a surge bottom regulation and storage channel box is arranged below the river bottom, an upper joint and a lower joint of the surge bottom regulation and storage channel box are located in high positions, and a sewage flowing port in the middle of the surge bottom regulation and storage channel box is located in a low position so that sewage can naturally flow into the surge bottom regulation and storage channel box. A water delivering pipe of an underground overlapping dual-pipeline co-well structure can deliver water of the sewage flowing port to a sewage treatment plant, and a water conveying pipe can send the treated water back to the midstream of a river. A through-flow section is arranged below the river bottom, and in this way, the land occupation area can be greatly reduced; meanwhile, since upper pipe sets constituting the water conveying pipe and lower pipe sets constituting the water delivering pipe are formed by construction in the same excavating well, the construction time can be greatly shortened, the occupied area of two banks along the river is reduced, and the enclosure area of a road is small, and the influence on the life of residents along the river is small. A coffer wall is adopted for waterproof isolation, various negative influences brought by closure can be avoided, and the method is used for treatment of black and odorous water.

A dust separation section is provided at a suction air passage between a suction opening of a vacuum cleaner main body and an intake opening of a motor fan to separate dust sucked from the suction opening with air and a dust collection section provided at the suction air passage for collecting the dust separated from the air from the dust separation section. Moreover, the dust separation section of the electric vacuum cleaner has a dust guiding space adapted to inflow the dust sucked from the suction opening from one end of the dust guiding space and for guiding the dust from an other end of the dust guiding space to the dust collection section, through a dust strike section, by an inertia force, and an air guiding air passage is provided to guide air from a midstream of the dust guiding space to the intake opening of the motor fan without passing through the dust collection section.