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53results about How to "Less material investment" patented technology

Experimental device for forming jet flow by drifting water with high-speed airflow and generating supersaturated total dissolved gas

The invention relates to an experimental device for forming jet flow by drifting water with a high-speed airflow and generating supersaturated total dissolved gas, which comprises a water column, a flowmeter, an air compressor, valves, a total dissolved gas determinator, a water pump, a jet pipe, a nozzle and a nozzle hole. The water column is designed into a main water column and an auxiliary water column, the nozzle hole in the wall of the main water column is connected with a rubber hose, a third valve is mounted on the rubber hose and communicated with the auxiliary water column, the air compressor is connected with one end of the flowmeter by a first valve, the other end of the flowmeter is connected with the jet pipe by a three-way pipe, the jet pipe is connected with the nozzle which is arranged in the main water column, the three-way pipe is connected with the water pump by a second valve, the water pump is arranged in the auxiliary water column by a pipeline, a fourth valve is mounted at the bottom of the auxiliary water column, a fifth valve is mounted at the bottom of the main water column, and a probe of the total dissolved gas determinator is inserted in the main water column. The experimental device can be used for simulating the submerged discharge, the free discharge and the total dissolved gas saturation process of different front-dam flows to research the relation between the supersaturation level and the front-dam total dissolved gas saturation.
Owner:SICHUAN UNIV

Conveyor belt wear repair treatment structure and repair treatment method

The invention discloses a conveyor belt wear repair treatment structure and a repair treatment method. The repair treatment structure is a layered structure, and comprises an outer protective film layer, an ultra-high molecular weight polyethylene outer layer and an ethylene-propylene-diene monomer bottom layer from outside to inside in sequence. The repair treatment method adopts a local cold repairing mode, and comprises the following steps: a, cleaning and drying the position and the periphery to be repaired of a conveyor belt; b, cutting off surface rubber at a damaged position along the edge of the damaged position of the conveyor belt; c, roughening the cut edge, and cleaning; d, accurately cutting a repairing material according to the cutting size and thickness, roughening, and cleaning; and e, coating the surface required to be repaired of the conveyor belt and the bottom surface of the ethylene-propylene-diene monomer bottom layer of the repairing material with a cold repairing adhesive, and fitting and compacting the surface required to be repaired of the conveyor belt and the bottom surface of the ethylene-propylene-diene monomer bottom layer of the repairing material. According to the conveyor belt wear repair treatment structure and the repair treatment method, the problems, such as wear, scratches, breakage, overlapped part cracking and the like, of the conveyor belt can be effectively solved; and the conveyor belt wear repair treatment structure and the repair treatment method has the characteristic of quick repair on site.
Owner:蓝色海洋(天津)工程技术有限公司

Continuous temperature gradient heat treatment device and method for rod-shaped material

The invention relates to the technical field of heat treatment, in particular to a continuous temperature gradient heat treatment device and method for a rod-shaped material. A furnace body of the continuous temperature gradient heat treatment device includes an upper heating zone and a lower heating zone, independent temperature control is performed by using an upper heating power source and a lower heating power source correspondingly, the upper heating zone and the lower heating zone are both closed heating zones, closed heat insulation boards can prevent heat loss, the precise control overthe temperature of the upper heating zone and the lower heating zone is ensured, and therefore the precise control over the temperature gradient of a rod-shaped material standard sample section is realized. The continuous temperature gradient heat treatment device includes vacuuming equipment to allow the rod-shaped material to conduct heat transfer under vacuum to avoid heat convection; an annular radiation screen is arranged between the upper heating zone and the lower heating zone, and the lateral heat dissipation of the standard sample section is suppressed, and the heat transfer can transfer in the longitudinal direction; the rod-shaped material does not in contact with the ring-shaped radiation screen, and heat conduction is avoided; and three aspects work together to enable the rod-shaped material to transfer heat in one dimension in the axial direction, and it is ensured that the surface and center temperature of the rod-shaped material are consistent.
Owner:苏州高晶新材料科技有限公司

Liftable water-fertilizer integrated system based on micro-spraying hose irrigation

The invention relates to a liftable water-fertilizer integrated system based on micro-spraying hose irrigation. The liftable water-fertilizer integrated system comprises a water supply device, an irrigation pipeline system, a hanging and lifting system and a water-fertilizer automated control system, wherein the irrigation pipeline system comprises a main water conveying pipeline, a filter, branch pipelines and bilateral broadside micro-spraying hoses; the main water conveying pipeline is connected with the branch pipelines; the hanging and lifting system comprises a pillar, a lifting steel rope, a steel rope winch wheel, a lifting sliding block, a pulley block and the like, and the bilateral broadside micro-spraying hoses are hung on the pillar; and the water-fertilizer automated control system comprises a programmable logic controller, a variable flow rate fertilizer injector and the like. The liftable water-fertilizer integrated system provided by the invention can regulate the spray irrigation starting sequence and the duration of each of the bilateral broadside micro-spraying hoses on the branch pipelines, simultaneously regulate the fertilizer injection flow rate of the fertilizer injector, maintain appropriate micro-spray irrigation water pressure, ensure the uniformity in irrigation and simultaneously realize automated and precise management of fertilizer and water.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Dust removal method, device and system

The invention provides a dust removal method, device and system, which are applied to the technical field of electronic equipment. A preset parameter for representing the load state of a heat dissipation object is obtained when the heat dissipation object works, if the preset parameter meets a preset dust removal condition, it is indicated that the heat dissipation object is currently in a light load state, the heat dissipated by the heat dissipation object is not very high, the air cooling heat dissipation process can be suspended, a heat dissipation fan is controlled to be switched and steered, dust accumulated on the surface of the heat dissipation object is blown and swept, and the dust is pumped away from the space where the heat dissipation object is located through reverse airflow,so dust removal of the heat dissipation object is achieved. According to the dust removal method, by controlling the cooling fan to rotate and switch, dust blowing is achieved, the space of the electronic equipment cannot be occupied due to the arrangement of the dustproof filter screen, normal cooling of the electronic equipment cannot be affected, and meanwhile manpower and material resource investment caused by field maintenance of the dustproof filter screen can be reduced.
Owner:SHANGHAI EMBEDWAY INFORMATION TECH

Experimental apparatus of oversaturation total dissolved gas in dam water discharging downstream water

The invention relates to an experimental device for supersaturated total dissolved gas of the downstream water body of discharging water of a dam. The device comprises a water column, valves, a flowmeter, an air compressor, a manometer, a total dissolved gas tester and a stirrer. A first valve and the flowmeter are respectively connected with the bottom of the water column by a pipeline, the outlet of the air compressor is communicated with the flowmeter by a second valve through one end of a three-way pipe, and is communicated with the atmosphere by a third valve through the other end of thethree-way pipe; the scale position on the wall of the water column is connected with a latex pipe which is connected with the manometer; the total dissolved gas tester and the stirrer are independent, and the total dissolved gas tester is placed into the water column when measuring. The device of the invention can measure and control main physical parameters which influence the generation and release of supersaturated total dissolved gas such as water body pressure, aerification quantity, water depth and turbulent strength, so as to carry out quantitative analysis to the total dissolved gas, and therefore the device of the invention has important promoting effects for the protection of river aquatic ecological environment and the establishment of ecology friendly hydraulic engineering.
Owner:SICHUAN UNIV

Overhead line type photovoltaic power generation device and power transmission and distribution system

The invention provides an overhead line type photovoltaic power generation device and a power transmission and distribution system, and the overhead line type photovoltaic power generation device is small in space occupation, convenient to install, low in manpower and material resource input, high in power generation efficiency and suitable for popularization. The overhead line type photovoltaic power generation device comprises at least one power generation unit. Each power generation unit comprises two fixed supporting parts and at least one group of power generation layer. Each power generation layer comprises at least one photovoltaic component, and at least two anti-tension ropes which are erected between the two supporting parts. The photovoltaic components are arranged on the anti-tension ropes arranged between the two supporting parts so that the photovoltaic components are enabled to be arranged in an overhead way, and the light receiving surfaces of the photovoltaic components face upwardly and are arranged in a horizontal or inclined way. The power transmission and distribution system comprises the overhead line type photovoltaic power generation device, and also comprises an inversion device and a step-up transformer which is correspondingly connected with the inversion device. The current output ends of the power generation units or the power generation unit groups are electrically connected with the inversion device correspondingly.
Owner:付佳临 +1

Suspension lifting system of broadside wire-laminated micro-spraying hose

The invention relates to a suspension lifting system of a broadside wire-laminated micro-spraying hose. The suspension lifting system comprises a broadside wire-laminated micro-spraying hose and a suspension lifting system. The broadside wire-laminated micro-spraying hose is divided into an one-side broadside wire-laminated micro-spraying hose and a dual-side broadside wire-laminated micro-spraying hose; the suspension lifting system comprises a supporting pillar, a lifting steel rope, a steel rope windlass wheel, a lifting slide block, a pulley and a telescopic supporting rod; the lifting slide block is moveably installed between two vertical plates of the supporting pillar; the broadside wire-laminated micro-spraying hose is installed on the lifting slide block; the lower side of the broadside wire-laminated micro-spraying hose is provided with the telescopic supporting rod. Through the lifting system, the paving height of a micro-spraying hose is adjusted; the lifting system can avoid torsion in the course of suspending and lifting; besides, the lifting system can effectively solve the problems of oblique spraying water flow and uneven irrigation for regular micro-spraying hose hung by a single steel wire and several sleeve buckles is easy to deviate at present.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Experimental device for generating over-saturated general dissolved gas by high-speed jetting air doping

InactiveCN101806793BLess frequent drainageShorten the timeTesting waterAquatic ecosystemJet flow
The invention relates to an experimental device for generating over-saturated general dissolved gas by high-speed jetting air doping, comprising a water column, a flowmeter, an air compressor, a general dissolved gas tester, a first valve, a second valve, a third valve, a water pump, a water flow nozzle and a gas nozzle, wherein the air compressor is connected with the flowmeter connected with the gas nozzle through the second valve, and the gas nozzle is arranged in the water column; one end of the water pump is connected with the bottom of the water column, the other end of the water pump is connected with the water flow nozzle through the first valve, and the water flow nozzle is arranged in the water column; the third valve is installed at the bottom of the water column; and the general dissolved gas tester is inserted to the water column when testing. The experimental device can realize the control on the measurement of main physical conditions affecting the generation of the over-saturated general dissolved gas, such as the jetting flow speed of a water body, air-doped amount, pressure, water depth and the like, thereby achieving the purpose of quantitatively researching theair-doped jetting flow of the over-saturated general dissolved gas; and the experimental device has the important promoting function on protecting the aquatic ecosystem of rivers and establishing environmental-friendly hydraulic engineering.
Owner:SICHUAN UNIV

Afforestation technique employing dredger fill

The invention provides an afforestation method employing dredger fill, in particular an afforestation technique employing the dredger fill. In order to solve the technical problem of afforestation employing the dredger fill, the method mainly comprises the steps of digging ditches in the dredger fill to discharge accumulated water and depositing the dug dredger fill at two sides of the ditches; raising the ground and then digging planting holes in the dredger fill between the ditches; and laying agricultural organic wastes, such as cotton straws and corn straws or organic waste cadmium salts,such as deadwoods and weeds for landscaping at the bottoms and the peripheries of tree holes; and improving the dug dredger fill by adopting desulfurized gypsum, organic media, polymeric ferric sulfate and acid organic fertilizers, improving the physical and chemical properties of the dredger fill, and backfilling the dredger fill for planting greening plants. According to the afforestation method, soil replacement is not needed, solidification of the dredger fill is accelerated through changing a terrain and discharging the accumulated water, and the dredger fill is rapidly improved for afforestation, so that the survival rate of trees can be improved.
Owner:SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING

Single-side hangable micro-spraying hose irrigation system

The invention relates to a single-side hangable micro-spraying hose irrigation system. The single-side hangable micro-spraying hose irrigation system comprises a single-side hangable micro-spraying hose, a water supply device, an irrigation pipeline system and a hanging and lifting system, wherein the water inlet end of the single-side hangable micro-spraying hose is connected with a branch pipeline through a quick joint; a main water conveying pipeline is connected with the water supply device; and the hanging and lifting system comprises a plurality of pillars, a lifting steel rope, a steel rope winch wheel, a lifting sliding block, a pulley block, a hanging steel wire (rope), a hanging hook and a telescopic support rod. A circular hole in the broad wide of the hangable micro-spraying hose is hung on the hanging steel wire (rope) through the hanging hook. The single-side hangable micro-spraying hose irrigation system can regulate the paving height of the micro-spraying hose through the lifting system according to plant heights and group structural characteristics of different crops, avoid the situation of torsion of the micro-spraying hose in the hanging and lifting processes by adopting the single-side hanging way during field mounting and effectively solve the problems of deviation of injection water flow and non-uniform irrigation because the conventional micro-spraying hose which adopts a single steel wire and a plurality of sleeve buckles for hanging at present is liable to deflection.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Non-stop dynamic balance real-time continuous correction device

The invention relates to a non-stop dynamic balance real-time continuous correction device which comprises a shell and a rotating shaft, a shaft hole is formed in the center of the shell, when the device is installed on the end face of an equipment rotor, the rotating shaft of equipment can directly penetrate through the shaft hole, a power supply sliding ring is fixedly installed on the outer side of the rotating shaft, and a correction assembly is arranged on the inner side of the shell. The correcting assembly comprises a rotating disc with one end rotationally connected with the inner side of the shell, a gear ring is fixedly connected to the outer side of the rotating disc, an angle adjusting self-locking motor is fixedly connected to the inner side of the shell, and a gear with one end meshed with the gear ring is fixedly connected to an output shaft of the angle adjusting self-locking motor. According to the non-stop dynamic balance real-time continuous correction device, when dynamic balance deviation occurs, equipment does not need to be shut down, real-time correction can be achieved when the equipment is running, the situation that the equipment runs with faults due to the fact that the equipment cannot be shut down is avoided, and therefore damage to equipment bearings and accessories due to vibration caused by unbalance is effectively avoided; therefore, the service life of the equipment is prolonged, and the stability of the equipment during operation is maintained.
Owner:山东森杰电机有限公司
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