35results about How to "Velocity effect" patented technology

The invention discloses a water complementing system for a fish-way entrance, which has good fish attracting effects. The water complementing system comprises a water complementing pool, wherein a water completing header tube is connected on the water complementing pool; at least one water complementing sub tube is connected on the water complementing header tube; a plurality of water complementing branch tubes are connected on the water complementing sub tube. The water complementing system adopts a sectional water complementing manner to simultaneously complement water for a plurality of positions of the fish-way entrance, so that water flow speed of the whole fish-way entrance is simultaneously changed without destroying the flow regime at the fish-way entrance, the flow regime at the fish-way entrance is kept to be stable to effectively attract fishes to enter the fish-way, thereby achieving good fish attracting effects; moreover, a plurality of water complementing branch tubes are adopted to complement water, and flow speed at the exit of each water complementing branch tube is not too large, so that large interferences cannot be caused to the flow speed of the fish-way, the tracing of fishes is not affected and is not blocked. The water complementing system is suitable for popularization and application in the fish-way field.

The invention discloses a cast-in-place arch bridge combined support structure and a construction method thereof.The cast-in-place arch bridge combined support structure comprises a first-stage bearing platform, a pile foundation, a second-stage bearing platform, an arch device and a supporting device.The first-stage bearing platform comprises a concrete bottom pile, a supporting column, a reinforcing device and a fixing rod, a U-shaped groove is formed in the top of the concrete bottom pile, and a protruding block is inserted into the bottom of an inner cavity of the U-shaped groove; the supporting column is inserted into the top of the concrete bottom pile. The concrete bottom piles are poured at the bottom of the riverbed, the supporting columns are spliced to the concrete bottom piles, the fixing rods and the limiting rods are used for limiting the supporting columns, and the concrete bottom piles can provide a firm supporting point for the first-stage bearing platform and the second-stage bearing platform so as to facilitate pouring of the arch bridge; in addition, various devices can be conveniently disassembled after the arch bridge is poured, the concrete bottom piles under the water surface do not affect the flowing speed of passing ships and water flow, and therefore the construction safety is greatly improved.

The invention relates to an airflow dehumidification module for a refrigerating and freezing device and the refrigerating and freezing device. The refrigerating and freezing device is provided with astorage chamber. One end of the airflow dehumidification module communicates with the storage chamber, and the other end of the airflow dehumidification module communicates with the external environment. A fin assembly is arranged in the airflow dehumidification module, so that moisture in airflow flowing through the airflow dehumidification module is allowed to be condensed on the fin assembly, the airflow flowing to the storage chamber from the external environment is condensed and dehumidified, the airflow flowing to the storage chamber is dry airflow with very low humidity, a large amountof frost is prevented from being generated in the storage chamber, the frosting amount is reduced, and the user experience is improved. The fin assembly comprises a plurality of fin channels formed byseparating a plurality of condensation fins arranged at intervals, and a first flow guide mechanism used for guiding and distributing the airflow flowing to the fin assembly is arranged at an airflowinlet of the fin assembly, so that the airflow passing through all the fin channels is the same in flow, and the airflow can be condensed and dehumidified more sufficiently.

The invention relates to an impeller type gas flow metering device which comprises a main shell provided with an impeller mechanism, an upper air chamber, a lower air chamber, an air inlet channel, a valve mechanism, an air outlet channel and a detection mechanism. The valve mechanism comprises a valve seat and a valve rotatably arranged on the valve seat, the valve is positioned between the air inlet channel and the upper air chamber and provided with an adjusting component for adjusting opening of the valve according to flow, and the air inlet channel is provided with a filtering mechanism for filtering external gas. By the scheme, the impeller type gas flow metering device is used for intelligently adjusting the size of the valve and capable of purifying gas flow.

The invention relates to a spiral-flow filter connector. The spiral-flow filter connector comprises a spiral-flow separation part and a confluence separation part, wherein the spiral-flow separation part is used for rotating a fluid mainly by virtue of a main body with a spiral spiral-flow groove, so that foreign matter in different masses can be separated, then the fluid is secondarily separated and filtered by a separation assembly with a diverging opening in the confluence separation part, twice separation of the fluid can be realized through a simple structure, and the spiral-flow filter connector is convenient to install and low in manufacturing cost.

The invention relates to an elastic strain type pipe flow velocity sensor and an application method thereof. The elastic strain type pipe flow velocity sensor comprises a substrate, and the substrate comprises a support plate and fixing surfaces on both sides of the support plate; the support plate is fixedly provided with a spoiler array which is composed of a plurality of spoilers perpendicularly fixed onto the fixing substrate; the spoilers and the support plate are connected in a swing mode through rubber gaskets; pressure sensors are mounted among the spoilers; the upper portion of the support plate is provided with a closed case, the edge of the closed case and the support plate are in closed connection, and an expansion cavity is formed between the closed case and the support plate. The elastic strain type pipe flow velocity sensor also comprises a data processing circuit, the data processing circuit comprises converters connected with the pressure sensors for converting data of the pressure sensors into electrical signals, and a data processor connected with the converters of the pressure sensors for computing and converting the electrical signals output by the converters.

The invention relates to a pipe flow velocity sensor and an application method thereof. The pipe flow velocity sensor comprises a substrate, the substrate comprises a support plate and fixing surfaces on both sides of the support plate, and the support plate is fixedly provided with a spoiler array; the spoiler array comprises a fixing substrate and a plurality of spoilers vertically fixed onto the fixing substrate; the fixing substrate of the spoiler array is adhered to the support plate; the fixing substrate is provided with a plurality of pressure sensors; the upper portion of the support plate is provided with a closing case, the edge of the closing case and the support plate are connected in a closed mode; an expansion cavity is formed between the closing case and the support plate and filled with high-pressure inert gas. The pipe flow velocity sensor also comprises a data processing circuit; the data processing circuit comprises converters connected with the pressure sensors for converting data of the pressure sensors into electrical signals, and data processors connected with the converters of the pressure sensors for computing and converting the electrical signals output by the converters.

The invention discloses a fishway inlet water supplementing system with good fish inducing effects. The system includes a water supplementing pool; the water supplementing pool is connected to a watersupplementing main pipe; the water supplementing main pipe is connected to at least one water supplementing branched pipe; and the water supplementing branched pipes are connected to multiple water supplementing branch pipes. The system adopts a mode of sectional water supplementing, so that water supplementing on multiple positions of a fishway inlet can be simultaneously performed, and therefore, the water flow velocity of the whole fishway inlet can be simultaneously changed, the water flow states at the fishway inlet cannot be destroyed, the stable water flow states at the fishway inlet can be maintained, fishes can be effectively attracted to enter a fishway, and good fish inducing effects of the fishway inlet can be achieved; the system adopts multiple water supplementing branch pipes to perform water supplementing, so that the flow velocity of the outlet of each water supplementing branch pipe cannot be too large, large influences on the flow velocity of the fishway cannot be caused, and therefore, upward tracing of fish cannot be affected, and obstruction on the upward tracing of the fish can be avoided; and the system is suitable for being popularized and applied in the field of fishways.

The invention discloses a rain and sewage filtering device for sponge city rainfall flood management and capable of improving the water utilization rate. The rain and sewage filtering device comprisesa shell body, an impurity concentration barrel, a top cover and a filtering screen, wherein a connecting column is arranged at one side above the outer part of the shell body; a sewage outlet is arranged on the front surface of a rainwater filter; the lower side of the impurity concentration barrel is connected with a transition tank through an inserting block; an activated carbon filtering frameis arranged above the transition tank and an inserting groove is reserved in the upper surface of the transition tank; the top cover is mounted above the shell body through a positioning column; a connecting groove is reserved at one side of the shell body; a water passing hole is reserved in the surface of a transverse rod on the top cover; the filtering screen is arranged at the bottom of the impurity concentration barrel. The rain and sewage filtering device for the sponge city rainfall flood management and capable of improving the water utilization rate, disclosed by the invention, can beused for filtering rainwater and collecting and storing impurities doped in the rainwater, so that the rainwater can be more rapidly and comprehensively filtered, and the recycling rate of the rainwater is effectively improved.

The invention relates to a strain type pipeline velocity sensor of vibrating reed structure and an application method of strain type pipeline velocity sensor. The strain type pipeline velocity sensor of vibrating reed structure comprises a substrate. The substrate comprises a fixing plate and fixing surfaces fixed on two sides of the fixing plate. The fixing plate is provided with a vibrating reed array. The vibrating reed array comprises fixed mounts and arrayed vibrating reeds fixed among the fixed mounts. The vibrating reeds are interconnected through connecting fibers and are connected with the fixed mounts. A closed shell is disposed on the rear of the fixing plate. Resistance strain gages are disposed between the closed shell and the rear of the fixing plate; a pipeline gauge also comprises a data processing circuit. The data processing circuit comprises convertors and data processors. The convertors are respectively connected with the pressure sensors and convert data of pressure sensors into electrical signals; the data processors are respectively connected with the convertors of the pressure sensors. The electrical signal outputted by every convertor is computed and is converted through the data processors.

The invention discloses a high-level filling distributor which comprises a bottom barrel. A bottom cover covers the top of the bottom barrel coaxially. A plurality of filling pipes are distributed on the edge of the bottom of the bottom barrel. A liquid feeding pipe is arranged in the barrel cover. The barrel cover is fixed with a liquid storing device by virtue of the liquid feeding pipe. The bottom of the bottom barrel is rotationally connected with a base by virtue of a rotary vertical shaft. The diameter of the barrel cover is larger than that of the bottom barrel. Overflow grooves are fixed in the edges of the bottom of the barrel cover, adopt annular structures, and sleeve the upper part of the bottom barrel. Upside down edges are arranged at the mouth of the bottom barrel outwardly. The edges of the outer sides of the upside down edges are positioned within the range of the openings of the overflow grooves. A valve is arranged on each filling pipe. According to the high-level filling distributor with the structure, the liquid feeding pipe is kept open often, the bottom barrel is separated from the barrel cover, and the filling is started when liquid medicine in the bottom barrel overflows, so that the liquid level of the liquid medicine in the bottom barrel is always kept at the height of the mouth of the bottom barrel, the flow speed in the filling pipes is constant, and the filling precision of a medicine bottle is improved.

The invention provides a single-layer plastic sheet object rheological control device without influencing the flow velocity, and relates to the technical field of rheology of plastic sheet objects. The single-layer plastic sheet object rheological control device without influencing the flow velocity comprises a flow pipe, a side branch pipe is arranged on the surface of the flow pipe, and a pressure chamber is fixedly connected to the interior of the flow pipe. According to the single-layer plastic sheet object rheological control device without influencing the flow velocity, the pressure in the pressure chamber can be the same as the pressure of fluid conveyed in the flow pipe through cooperative use of the flow pipe and the side branch pipe, the position of a supporting plate can be adjusted according to changes of the pressure in the pressure chamber through cooperative use of a push plate and a compression spring on the surface of the push plate, an adjusting frustum can be driven to move through cooperative use of the supporting plate and an adjusting cylinder, and the size of a flowing channel in the flow pipe can be adjusted through cooperative use of the adjusting frustum and a fluid conveying plate, so that the rheology of plastic fluid is regulated and controlled, and it is ensured that the flow velocity of the plastic fluid is not influenced by the pressure change.

The invention relates to the technical field of ore pulp sampling equipment, and discloses a convenient-to-seal ore pulp pipeline sampler. The sampler comprises a pipe body, and flange plates are connected to the two sides of the pipe body through pipelines; a rotating motor is fixedly connected to one side of the upper portion of the pipe body, and a speed reducer is fixedly connected to the output shaft end of the rotating motor. Through the arrangement of a sampling pipe and a sliding ring, the sampling pipe can be used for sampling without being inserted into ore pulp; the sampling pipe isnot impacted by ore pulp, so the service life of the sampling pipe is prolonged; moreover, after the sampling is finished, the through holes and the circulating holes are sealed in a staggered manner, and ore pulp is prevented from continuously flowing into the sampling pipe, so the sealing effect is improved; when the sampler breaks down, only the whole sampling pipe needs to be detached, at themoment, the circulation hole and the through hole of the sliding ring are still in a staggered and sealed state under the action of the limiting block and the reset spring, the whole ore pulp production line does not need to be stopped, the whole pipeline sampler does not need to be taken down to be maintained, and the production efficiency is improved.

The invention belongs to the field of sludge treatment equipment, and discloses an angle-adjustable pipeline connecting structure. The angle-adjustable pipeline connecting structure comprises a valvebody, a valve ball, a first flange and a second flange; the inner side of one end of the valve body is provided with a connecting inner cavity, and the end is provided with a port with the small innerside and the large outer side; the valve body is further provided with a first connecting portion; the first flange is provided with a second connecting portion; the second connecting portion is connected with the first connecting portion through a fixing part; the valve ball is located in the connecting inner cavity; and the second flange penetrates through the first flange and the port througha water supply pipeline to be connected with the valve ball. The invention further discloses an installing method of the pipeline connecting structure and a long-line pipeline with the pipeline connecting structure. Therefore, connection of the long-line pipeline can be applied to the high-pressure work condition, and the pipeline angle steering problem can be solved.

The invention relates to the technical field of animal husbandry veterinary medicine feeding, in particular to an anti-occlusion veterinary medicine feeding device and a use method.An upper auxiliary block, a lower auxiliary block, two handheld handles, a connecting base, a fixed occlusion block, a movable occlusion block and a bent pipe are all made of non-ferromagnetic metal, so that the medicine feeding device has a stable structure; deformation is not easy to occur; the lower anti-bite pad and the upper anti-bite pad are both made of rubber materials with higher hardness, so that the lower anti-bite pad and the upper anti-bite pad cannot deform due to bite force of animals, discomfort of the animals is reduced, the handheld handle is arranged, a user holds the handheld handle by hand to prevent the animals from bite the hands, the bent pipe is of an inclined L-shaped through pipe structure, and the bent pipe is convenient to use. A certain inclined angle is adopted, liquid medicine does not remain in the bent pipe due to the change of gradient when passing through the bent pipe, but directly flows down and directly enters the throat, the flow speed of the liquid medicine is not influenced, and the phenomena that the flow speed of the liquid medicine is too low, and the medicine feeding time is too long are avoided.

The invention discloses a petrochemical industry diffuser in the technical field of petrochemical industry. The bottom of an inlet pipe is welded with a reducing concentric joint, and the bottom of the reducing concentric joint is welded with a connecting pipe; the bottom of the connecting pipe is welded with a connecting ring, and the bottom of the connecting ring is welded with a discharge pipe;the middle of the inner wall of the inner cavity of the discharge pipe is welded with a support ring, and the top end of the support ring is circumferentially and uniformly provided with blades; thetop ends of the blades are welded with a disc. The device has the advantages of simple structure, convenient use and simple operation.