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67 results about "Conduit flow" patented technology

Flow occurs because there is a longitudinal pressure difference along the conduit. Open channel conduit flow is the transport of water by gravity with a free surface open to atmospheric pressure in which the channel determines the size, shape, and slope of the conduit.

City life residential area rainwater shunting, collecting and treating system

The invention discloses a city life residential area rainwater shunting, collecting and treating system. The city life residential area rainwater shunting, collecting and treating system comprises a water inlet pond, an initial rainwater storage pond and a clean water pond and is characterized in that a first constructed wetland is arranged above the initial rainwater storage pond and a second constructed wetland is arranged above the clean water pond; the rainwater of the city life residential area collected by a rain sewage collecting conduit flows into the water inlet pond, flows into the initial rainwater storage pond after passing through the first constructed wetland and then flows into the clean water pond after passing through the second constructed wetland. By using the system disclosed by the invention, the initial rainwater and the later rainwater of the residential area are shunted and treated; a rainwater purification facility and a storage facility are constructed with one blow the other so that the space usage of the treatment process is reduced; the inferior rainwater in the initial rainwater storage pond is discharged into the second constructed wetland to be continuously treated by using a time slot without rain after the rain stops so that the inferior rainwater is recycled after reaching the city nondrinking water quality; and the system has the advantages of investment conservation, low operation cost and easiness in operation and management.
Owner:CHONGQING UNIV

Method and device for measuring high polymer molten volume flow

ActiveCN101408443AEliminate measurement error interferenceAccurate Indirect Determination CalculationsVolume/mass flow measurementDirect flow property measurementEngineeringMeasurement precision
The invention discloses a measuring device for high polymer fusant volume flow and a measuring method thereof. The invention is characterized in that one end of a slit flow passage or a conduit flow passage (4) is connected with a flow passage actuating unit (1), the other end thereof is connected with a fusant external flow passage (5), the external flow passage is connected with the flow passage actuating unit by a loop flow passage (8), the slit flow passage or the conduit flow passage is provided with a temperature sensor (7) and a plurality of pressure sensors (2, 3), and the temperature sensor and a plurality of pressure sensors are respectively connected with a collecting and processing system (6) for temperature and data. The actuating unit pushes the high polymer fusant to enter the flow passage at a certain speed, and the passing time of fluid is measured by two pressure sensors, therefore, the volume flow of the high polymer in the flow passage can be obtained according to the physical dimension of the flow passage and the passing time. The measuring device of the invention can measure the volume flow of the high polymer fusant in the flow passage without the influence of the change of the pressure and the dimension of the flow passage. In addition, the invention provides a method which can improve and enhance the rheological measurement precision of the high polymer.
Owner:浙江博发新材料股份有限公司

Well control project monitoring system

The invention relates to a well control project monitoring system comprising a drill floor adjusting device, a drilling tool is inserted into a borehole through the drill floor adjusting device, a sludge circulation system passes through an inner cavity of the drilling tool, circulates in the annular space of the borehole out of a circulation tank and then is pumped into the inner cavity of the drilling tool through a sludge pump to form a closed loop, an anti-spilling pipe is connected to the upper portion of the borehole, the upper end of the anti-spilling pipe is provided with a wellhead sealer, a blowout preventer is arranged at the lower portion of the anti-spilling pipe, a grout pipe and a grout pump sequentially pass through the position between the wellhead sealer and the blowout preventer and then are connected with a sludge tank, the grout pipe is provided with a grout pipe flow sensor, a guide pipe flow sensor is arranged at the position, at a guide pipe of an outlet of the anti-spilling pipe, of the sludge circulation system, and a vertical pipe flow sensor is arranged at an inlet of the sludge circulation system. The well control project monitoring system is stable in performance, can achieve recording and wireless remote transmission of on-the-spot working information in real time, and provides the basis for integration of the spot and a foundation, information sharing, remote control commanding, accident replaying and investigation treatment.
Owner:PANJIN CHUNYA PETROLEUM TECH

Conduit flow energy harvester

The present invention relates to a conduit flow energy harvester and belongs to the field of fluid power generation. A framework bottom plate, provided with inner and outer anchorage plates, is installed on the cross beam of a pipeline. The left end of a rocking arm of an exciter is provided with a rocking arm anchorage plate, and the right end of the rocking arm of the exciter is provided with a blunt body. The front and back sides of the exciter are provided with cams. The shaft hole of the rocking arm is sleeved on a rotating shaft. The rotating shaft is fixed onto the outer anchorage plate. The inner anchorage plate and the rocking arm anchorage plate are provided with pin shafts. The two ends of a spring are connected with the pin shafts. The upper and lower sides of the framework bottom plate are provided with energy transducers and the substrates of the energy transducers are arranged closer to the framework bottom plate. The free ends of the energy transducers are pressed against the cams. The contour curve of each cam is composed of two sections of arc profiles concentric with the shaft hole. In the contour curve of each cam, the distance between each arc profile and the center of the shaft hole is the shortest. Before the installation of energy transducers, the energy transducers are of a flat and straight structure. After the installation of energy transducers, the energy transducers are of a bent structure. Meanwhile, the free ends of the energy transducers and the vertex of the profile of each cam are in contact with each other. In the contour curve of each cam, the vertex of the profile is the largest in distance from the center of the shaft hole. The deformation amount of the energy transducers is the largest when the energy transducers are in contact with the vertex of the profile.
Owner:ZHEJIANG NORMAL UNIVERSITY
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