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305results about How to "Improve anti-blocking performance" patented technology

Dripping arrow irrigation automatic control system, manufacturing method of dripping arrow irrigation automatic control system and dripping arrow irrigation method

The invention relates to a dripping arrow irrigation automatic control system, a manufacturing method of the dripping arrow irrigation automatic control system and a dripping arrow irrigation method. The dripping arrow irrigation automatic control system consists of a reservoir, a water pump, a water level sensor, a conveying main pipeline, a fertilization pipeline, a conveying branch pipeline, a temperature sensor, a main controller, a start controller, a water taking pressure gauge, an electromagnetic valve, a suction and exhaust valve, a fertilization control valve, a filter and a water conveying pressure gauge; the reservoir is arranged at the initial end of the conveying main pipeline; the water level sensor is arranged in the reservoir; the water level sensor is connected with the main controller; the water pump is arranged on the reservoir and is used for drawing a water source in the reservoir; the water taking pressure gauge, the electromagnetic valve, the suction and exhaust valve, the fertilization control valve, the filter and the water conveying pressure gauge are sequentially arranged on the initial section of the conveying main pipeline; the fertilization control valve is mounted on the initial section of the conveying main pipeline; a fertilizer is uniformly conveyed into the conveying main pipeline by the fertilization conveying pipeline. The dripping arrow irrigation automatic control system is scientifically designed, has a reasonable structure and uniform flow, is reasonable in system arrangement, is stable in pressure in the pipelines, has wide applicability and has a wide application range; a dripping arrow takes effects of a water dropper and an insertion arrow, has a small size and high intensity, has powerful use functionality and is convenient to mount and use.
Owner:TIANJIN WATER RESOURCES RES INST

Recycling processing device for electroplating wastewater

The invention discloses a recycling processing device for electroplating wastewater. The recycling processing device comprises a processing barrel, a water inlet pipe communicates with the top of theleft side of the processing barrel, and a sludge hopper is welded to the top of the processing barrel. According to the recycling processing device for the electroplating wastewater, waste gas is filtered through an air filtering box, the situation that unpleasant odor generated by the waste gas influences a user is avoided, the user drive a scrapping plate through a transmission mechanism to moverightwards, impurities at the top of a filtering plate is removed, meanwhile a sealing plate is rightwards pushed to be opened by the scrapping plate, thus waste slag conveniently falls into a collecting box, after the scraping plate moves leftwards and restores, restoring of the sealing plate is conducted through a restoring mechanism to seal the processing barrel, and the problems that a filtering plate is prone to being blocked and the unpleasant odor is large after blocking in an existing recycling processing device for the electroplating wastewater after a long time using are solved. Therecycling processing device for the electroplating wastewater has the advantages that the filtering plate is not prone to being blocked, and the gas processing effect is good, and the anti-blocking effect and the unpleasant odor processing effect are improved.
Owner:ANHUI QIMING SURFACE TECH

Edge seam sandwich layer water seepage drip irrigation pipe/belt

The invention provides an edge seam sandwich layer water seepage drip irrigation pipe / belt with the advantages that the structure is simple and the manufacture cost is low. In the invention, non-woven fibers or open micro bubbles are used for replacing the traditional labyrinth flow passage, and the problem of underground water outlet blockage is solved. The edge seam sandwich layer water seepage drip irrigation pipe / belt is characterized in that a main body is provided with a water passing passage and one to two water seepage edge seams, wherein the water seepage edge seams are provided with non-woven fiber layers or open foaming sandwich layers, intermittent bonding points are arranged on the water seepage edge seams, and gaps of the bonding points on the edge seams form a water seepage passage. The water drip quantity of the drip irrigation pipe / belt in the unit length can be controlled through the spaces of the bonding points, and the spaces and the shapes of the bonding points and the diameter of the water passing passage can also be changed at any time according to use requirements. The production equipment is also simpler than the existing drip irrigation pipe / belt production equipment, the investment is low, and the production cost can be greatly reduced.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI

Method and device for efficiently denitriding and dephosphorizing underground percolation sewage

The invention relates to a method for efficiently denitriding and dephosphorizing underground percolation sewage. The method comprises the following steps of: treating raw sewage in a downward infiltration region in the infiltration process; treating the sewage in an upward infiltration region in the upward infiltration process; and draining, wherein raw sewage is fed into the downward infiltration region in multiple upper and lower layers for performing multilayer combined water scattering, and raw sewage entering from a bottommost layer is used for providing a carbon source for a denitrification reaction. The invention further relates to a device for implementing the method. The device comprises a downward infiltration region and an upward infiltration region, wherein the downward infiltration region consists of a covering layer, an upper water scattering layer, an upper fine filtering layer, an upper precision filtering layer, a water scattering-ventilating layer, a middle fine filtering layer, a middle precision filtering layer, a lower water scattering layer, a lower rough filtering layer and a diversion layer in sequence from top to bottom; the downward infiltration region consists of a diversion layer, a dephosphorizing layer and a vegetable layer; and the downward infiltration region and the upward infiltration region are communicated with each other at the bottom diversion layer. The method and the device have the advantages of simple structure, low construction cost, no need of special maintenance, low running cost and good sewage treatment effect, and are suitable for treating domestic sewage.
Owner:广州中科碧疆环保科技有限公司

Linear liquid distributor

The invention relates to a linear liquid distributor. The distributor mainly comprises a tower wall, a filler, a filler pressing ring, a calandria liquid distributor, an annular collector and a funnel, wherein the filler is arranged in the tower wall; the upper part of the filler is pressed by the filler pressing ring; the filler pressing ring is fixed in the tower wall through bolts; the calandria liquid distributor is placed on the filler pressing ring and combined with the filler pressing ring into a whole body; the upper part of the calandria liquid distributor is sequentially provided with the funnel and the annular collector from the bottom to the top; the annular collector is communicated with the funnel; the lower part of the funnel is provided with a liquid level tube which is communicated with the calandria liquid distributor; and the filler pressing ring is provided with a flow guide plate. The distributor of the invention has the advantages of increasing the anti-block performance, improving the distribution quality of the liquid, increasing the circulation area, and reducing the using amount of the material; and parallel grid plates in the filler pressing ring are heightened to play a certain role in improvement of a flow field of vapor phase in a tower, make the air flow stably flow upwards and improve the distribution of the vapor phase.
Owner:ZHEJIANG UNIV OF TECH

Black water coking-preventing impact-resistant shockproof regulating angle valve special for coal chemical industry

The invention relates to a regulating angle valve, in particular to a black water coking-preventing impact-resistant shockproof regulating angle valve special for the coal chemical industry, and belongs to the field of fluid control valves. The black water coking-preventing impact-resistant shockproof regulating angle valve comprises a diffusion tube and a valve body, wherein the lower end of the valve body is connected with the diffusion tube through a bolt. An inlet flowing channel is arranged in the valve body, an outlet flowing channel is arranged in the diffusion tube and is communicated with the inlet flowing channel, and the inlet flowing channel is perpendicular to the outlet flowing channel. A valve carrier base is arranged in the outlet flowing channel and is clamped through the diffusion tube and the valve body, and a valve carrier is arranged in the valve carrier base. The black water coking-preventing impact-resistant shockproof regulating angle valve is simple in structure and novel in design, can effectively solve the technical problems that a traditional black water regulating angle valve is easy to coke, poor in impact resistant performance, undesirable in shockproof effect and the like in a use process, is widely applied in sites of customers, and effectively lowers production operation cost of the customers.
Owner:WUXI SMART AUTO CONTROL ENG CO LTD

Edge gap water seepage drip irrigation pipe/ belt

The invention provides an edge gap water seepage drip irrigation pipe / belt with a simple structure and low manufacturing cost for solving the problem that a buried facility blocks a water outlet. The drip irrigation pipe / belt main body is provided with non-woven fiber layers or open foaming layers of which single side is provided with a water blocking film layer; the drip irrigation pipe / belt is provided with a water through passage and 1 to 2 water seepage edge gaps; each water seepage edge gap is provided with interrupted bonding points; the non-woven fiber layers or the open foaming layers are oppositely bonded; and the clearance of the bonding points on the edge gaps forms a water seepage channel. The water dropping quantity of the unit length of the drip irrigation pipe / belt can be controlled through the distance between the bonding points, and the distance and the shape of the bonding points and the diameter of the water through passage can be changed at any time according to the use requirement. Compared with conventional drip irrigation pipe / belt production equipment, the production equipment for the drip irrigation pipe / belt has the advantages of simplicity, low investment and capability of greatly reducing the production cost.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI

Three-layer separate injection string and three-layer separate injection method for oil well

InactiveCN103806884AQuick and easy water dispensingExtended service lifeFluid removalOil wellSteel ball
The invention discloses a three-layer separate injection string and a three-layer separate injection method for an oil well. The three-layer separate injection string comprises an outer pipe combination and an inner pipe combination, wherein the outer pipe combination comprises a large oil pipe, a first expanding packer, a division water distributor, a small oil pipe, a second expanding packer, a constant pressure switch and a ball seat which are fixedly connected sequentially from top to bottom; the inner pipe combination comprises the small oil pipe and a division insertion pipe, the division insertion pipe can be correspondingly abutted against a sliding sleeve in the division water distributor, and a gap is reserved between a non-insertion section of the division insertion pipe and a barrel of the division water distributor; the string is tripped in the designated location of a sleeve, and a steel ball is put on the ball seat; and setting pressure of the first expanding packer and setting pressure of the second expanding packer are smaller than shearing pressure of a shear pin of the constant pressure switch. The three-layer separate injection string is simple in structure and convenient to operate, not only can realize three-layer separate water injection and well washing, but also improves the water injection effect and the flexibility of water injection and well washing deployment greatly.
Owner:PETROCHINA CO LTD

High-temperature gas washing and cooling device

The invention discloses a high-temperature gas washing and cooling device. The high-temperature gas washing and cooling device comprises a housing. The top of the housing is provided with an opening for receiving gas needing to be washed and cooled. The middle of the housing is provided with a gas-guide tube. An inlet of the gas-guide tube is in a butt joint relationship with the opening. A washing and cooling water distribution ring is arranged at the butt joint position. A lower part of the housing is provided with a static slag breaking device. Multiple pressure atomizers for spraying water mist into the housing to reduce a temperature of the gas needing to be washed and cooled are arranged on the periphery of the housing. Each one of the pressure atomizers comprises a main body, the main body is provided with a port communicated with a washing and cooling water source, an annular flow deflector is arranged in the main body, a front end of the annular flow deflector is provided with a nozzle, and the nozzle points to an outlet of the gas-guide tube. Through combination of vertical falling film spray flowing and pressure atomization, the high-temperature gas washing and cooling device effectively improves heat and mass transmission effects, reduces slag-caused blocking possibility and improves a cooling chamber blocking resistance capability.
Owner:EAST CHINA UNIV OF SCI & TECH +1

Barrel-shaped micropore labyrinth drip irrigation tape and processing method thereof

The invention provides a barrel-shaped micropore labyrinth drip irrigation tape, consisting of a drip irrigation tape water delivery passage and a labyrinth runner, wherein the side face of the drip irrigation tape water delivery passage is provided with the micropore labyrinth runner formed by filling ropes, the radial part, adjacent to the water delivery passage, of the micropore labyrinth runner is provided with inner water outlets uniformly, and outer water outlets in staggered arrangement with the inner water outlets extend to seams of the drip irrigation tape. The processing method is characterized in that while the drip irrigation tape water delivery passage is extruded, two cotton ropes penetrate into extrusion die heads to serve as labyrinth fillings, the extruded thin wall barrel sleeves outside the cotton ropes and are extruded into an inner 8 shape font and an outer 8 shape, the large 8 shape at the outer side forms the drip irrigation tape water delivery passage, and the small 8 shape at the inner side respectively wraps the two cotton ropes in a plastic film for forming a barrel-shaped micropore labyrinth. The technical progress effects are that the anti-blocking performance is greatly improved, drip irrigation system filtering equipment can be simplified, and the operation energy consumption of a drip irrigation system is reduced. When the irrigation specification of the drip irrigation tape needs to be changed, no hardware in a production line needs to be changed, and only the cotton ropes with proper diameters or water outlets with proper number are selected.
Owner:NORTHWEST A & F UNIV

Microporous labyrinth type anti-blocking drip irrigation pipe

The invention provides a microporous labyrinth type anti-blocking drip irrigation pipe composed of a drip irrigation pipe body and an embedded drip head. The drip head is cylindrical, water slots are arranged in two sides or the middle of the cylinder, the cylinder is sleeved with a microporous labyrinth type anti-blocking permeable layer made of a fibrous material or opened foam microporous material, the arrangement interval of the drip head in the drip irrigation pipe body is more than 30cm, and water outlet holes are arranged in the wall of the drip irrigation pipe body circumferentially uniformly in a staggered manner and correspond to the positions of the water outlet slots of the drip head. The microporous labyrinth type anti-blocking drip irrigation pipe has the technical improvement advantages that anti-blocking performance is improved greatly, a drip irrigation system filter device can be simplified, and energy consumption for operation of a drip irrigation system is lowered; the drip head is in the shape of a cylindrical labyrinth and is directly embedded in the drip irrigation pipe during production, so that cost of production process of the drip head is lowered greatly, and changes on hardware of a drip irrigation pipe production line are not needed.
Owner:HEBEI YUYAN IRRIGATION EQUIP

Heterologous decellularized nerve graft with tissue adhesion preventing function and preparation method thereof

The invention discloses a heterologous decellularized nerve graft with a tissue adhesion preventing function and a preparation method thereof. The heterologous decellularized nerve graft capable of preventing tissue adhesion consists of a heterologous decellularized nerve graft and an anti-adhesion macromolecular layer attached to the surface of the heterologous decellularized nerve graft; the heterologous decellularized nerve graft is an extracellular matrix which is obtained through subjecting in-vitro peripheral nerves of a healthy mammal to decellularizing. The anti-adhesion heterologous decellularized nerve graft disclosed by the invention is wide in source, low in price, good in biocompatibility and safe in use and meanwhile is free of immunogenicity; a microstructure of the extracellular matrix of the peripheral nerves is completely reserved, and thus, a natural piping support and a nutrition environment are provided for regenerating nerve axons and restoring a nerve conduction function; the anti-adhesion macromolecular layer of the heterologous decellularized nerve graft capable of preventing tissue adhesion, disclosed by the invention, can be changed into gel coats which are attached to surfaces of the decellularized nerves after the heterologous decellularized nerve graft is grafted in vivo, so that the action of preventing heterologous decellularized nerves from being adhered to periphery tissue can be excellently exerted.
Owner:YANTAI ZHENGHAI BIO TECH
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