32results about How to "Maximum collection" patented technology

The invention discloses a single-stage boosting/reducing energy storage type photovoltaic grid-connected power generation control system, which comprises an energy storage type power conversion main circuit and a control system which are connected mutually. The energy storage type power conversion main circuit comprises a photovoltaic cell, an inductance and capacitance circuit network, an energystorage cell and a three-phase inverter which are connected mutually; and the control system is used for performing charging and discharging management on the energy storage cell, maximum power tracking and threshold control on the photovoltaic cell and closed-loop control on output active and reactive power of the three-phase inverter. The system finishes boosting/reducing, inversion and energy storage through single-stage power conversion, realizes the minimum inverter capacity with a simple structure, ensures the steady power of the power grid, can collect solar energy to the greatest degree, improves the power generation efficiency, realizes reactive compensation, electric peak regulation control and the like, and improves the quality of the power grid.

The present invention aims to provide a mobile shared agricultural drone service station with simple structure, self-sufficiency, easy management and high integration. The invention comprises at least one box body (1), and several functional areas are arranged in the box body (1), and a power supply system, a power storage system, an unmanned aerial vehicle operation system, and a supply system are respectively arranged in the functional areas , a vehicle system and a management system, the power supply system supplies power to the supply system and the management system respectively; the management system and the power supply system, the power storage system, the UAV operation system and The supply systems are connected by electrical signals, the management systems on each of the boxes (1) communicate with each other, and the management systems communicate with the peripheral master console. The invention is applied to the field of agricultural equipment.

The invention relates to an optical system of a multichannel fluorescent quantitative PCR instrument. A plurality of optical fiber scanning ends are arranged on a plurality of scanning lenses respectively; each optical fiber scanning end is provided with two transmission optical fibers, each optical fiber scanning end is connected with an optical fiber light inlet end through one of the transmission optical fibers, and each optical fiber scanning end is connected with an optical fiber light outlet end through the other transmission optical fiber; the exciting light emitted by an LED light source enters the optical fiber light inlet end after being condensed by a convex lens, the exciting light enters each transmission optical fiber respectively through the optical fiber light inlet end, then is transmitted to each optical fiber scanning end and exits from each scanning lens, the emission light emitted by a sample after being irradiated by the exciting light is converged to each opticalfiber scanning end through the scanning lens, enters each transmission optical fiber scanning end respectively and then is transmitted to the optical fiber light outlet end, and the emission light exits from the optical fiber light outlet end and enters an imaging sensor through a lens assembly. The technical scheme can improve the spectral utilization rate of a light source, and can overcome theproblem of large light intensity difference between holes without adding internal reference fluorescent substances for internal reference correction.

The invention discloses a photovoltaic panel fixing device for intelligent building which is convenient to adjust daylighting angle, including the base, Support bar and fixing bar, the left and rightends of the base are penetrated with fixed bolts, the upper end of the supporting column is penetrated with a bearing plate, the right side of the support bar is provided with a first motor, the upperend of the fixing rod is fixedly connected with the fixing plate through a connecting shaft, the rear end of the limiting plate is penetrated with an adjusting shaft, The brush is fixedly connected with the connecting plate through a screw rod, the right end of the adjusting shaft is provided with a second motor, the right side of the supporting column is provided with a third motor, the upper surface of the bearing plate on the left side of the fixing rod is provided with a water tank, the right side of the water tank is penetrated with a water supply pipe, and the upper end of the water supply pipe is connected with a sprinkler head. The photovoltaic panel fixing device for intelligent buildings, which is convenient to adjust the daylighting angle, can rotate the photovoltaic panel, enable the photovoltaic panel to collect solar energy to a greater extent, and can clean the impurities on the surface of the photovoltaic panel.

The invention discloses a water collecting film for improving the survival rate of trees planted in deserts. The water collecting film is provided with a funnel-shaped film body (3) which is wide at the top and narrow at the bottom, a funnel upper opening (1) is arranged on the funnel-shaped film body (3) and a funnel lower opening (2) is arranged below the funnel-shaped film body (3); the upper half part of the funnel-shaped film body (3) is an nonporous section (4), and the lower half part thereof is a through hole section (5); the through hole section (5) is evenly distributed with a plurality of round holes around the circle center. By adopting the water collecting film of the invention, the moisture around the root part can be effectively maintained, and the survival rate of seedlings can be improved under the same natural environment.

The invention relates to a single-particle sampler, comprising an air inlet, a sampling head, an air pump, a flowmeter and an air outlet, wherein the air inlet is communicated with an admission nozzle of the sampling head by a vent pipe; the air outlet is communicated with an air outlet nozzle of the sampling head by the vent pipe; the flowmeter is arranged on the vent pipe; and the air outlet iscommunicated with the air pump. The single-particle sampler is characterized in that the sampling head is a single-particle sampling head and comprises the admission nozzle, the air outlet nozzle, anaccelerating chamber, a collecting chamber and a sample platform, wherein the admission nozzle is hermetically connected with the upper end of the accelerating chamber; the air outlet nozzle is hermetically connected with the lower end of the collecting chamber; the accelerating chamber is communicated with the collecting chamber by a hole; the accelerating chamber is funnel-shaped; the collecting chamber is internally provided with the sample platform; and a sampling membrane is arranged on the upper end surface of the sample platform. When being used for collecting single particles in the atmosphere, the single-particle sampler has the advantages of short sampling time, convenience in carrying, simpleness in operation, independent direct-current power supply, and the like.

The invention discloses a water-saving type irrigating device for a rose garden, and relates to the field of irrigation. The water-saving type irrigating device for the rose garden comprises a water storage tank, wherein a water inlet tube penetrates through the top of the water storage tank; a water tank is fixedly mounted in the water storage tank; an irrigating tube penetrates through one sideof the water tank; one end of the irrigating tube penetrates through the water storage tank and extends out of the outer side of the water storage tank; a solenoid valve is arranged on the irrigatingtube; a through hole is formed in the top of the water tank; and an evaporation preventing device is arranged on the through hole and comprises a tube body. By arrangement of the evaporation preventing device, after rainwater enters the water tank, water evaporated in the water tank cannot reach the outside through the through hole, and therefore, loss of the rainwater is avoided; and by arrangement of a heat-insulation layer, the circumstance that water in the water tank is evaporated due to over-high temperature when the temperature of the outside in the summer is high is avoided, therefore,water loss is avoided, and the water-saving effect is improved.

The invention belongs to the technical field of chemical detection, and particularly relates to a method for measuring phthalate in toys for children. The method comprises the following steps: 1) configuring a standard solution; 2) sample extraction: taking a representative sample, cutting or grinding the same, quantitatively weighing 0.500g and placing the same in an extraction flask, adding 15mlorganic solvent, performing microwave extraction, cooling to the room temperature, then performing rotary evaporation until 3-8ml concentrated solution is left, then adding the concentrated solutioninto a solid phase extraction column to perform a purification treatment, then rinsing the solid phase extraction column for several times with 9-15 ml organic solvent, collecting the eluent, fixing the volume to 25ml by using the organic solvent, and finally performing filtering by using a 0.45 mu m organic filtering membrane; and 3) analyzing the sample by using a gas chromatograph-mass spectrometer. Compared with the prior art, the method provided by the invention has the advantages of simple and convenient operation, high detection speed and high accuracy.

The invention relates to a sand-containing gas sand collecting device in a gas well sand production and sand control simulation experiment. The sand collecting device can reasonably catch and collect a sand sample in sand-containing gas in an experiment process and can directly sort in accordance with meshes as required and measure gas flow simultaneously; the sand collecting device is characterized in that the upper part of the sand collecting device is of a cylindrical structure and the lower part of the sand collecting device is in the shape of an inverted conical body; from top to bottom, the sand collecting device is sequentially provided with a flow meter, an upper-bottom gland, an atomizing nozzle, a gas inlet, an inspection window and a multi-stage sand sample sorting device; the flow meter comprises a filter element and is capable of monitoring gas flow after sand is removed from gas; the upper-bottom gland is fixedly connected to the sidewall of the sand collecting device by virtue of a bolt and is provided with a seal gasket; the atomizing nozzle is arranged above the gas inlet; by virtue of water mist sprayed from the atomizing nozzle, residual sand in the gas can be caught; the inspection window can be used for monitoring change in water level in real time; and the multi-stage sand sample sorting device is located at the lowest side of a tank body and is used for immediately sorting the sand sample according to a requirement on meshes, so as to save time.

The invention relates to a vehicle-mounted test platform of a solar mobile hot water system or a thermal collector test system, and particularly relates to a vehicle-mounted test system for a solar thermal collector. The vehicle-mounted test system is connected with a sliding rack through a sliding rack driving device; in the moving process of a test device removing system, the sliding rack driving device moves on a chain drive removing mechanism fixed by chains through a servo motor drive sprocket to drive the sliding rack to slide on the guide rail, so that the solar energy realizes flexible operation by vehicle-mounted movement and the purpose of flexible detection is achieved. By adopting the system, the restriction that the working condition of the conventional solar thermal collector is at a permanent position is avoided, different-place operation by a vehicle-mounted moving method is used as the creative point, and the maneuvering detection on different positions can be realized according to the weather forecast information, so that the resources can be integrated and saved, and the natural sunlight detection utilization rate and the annual detection efficiency in China can be improved.

The invention discloses a magnetic chip removal machine. The magnetic chip removal machine comprises a permanent magnet chip removal machine body, wherein a conveying belt and a permanent magnet are arranged on the permanent magnet chip removal machine body; a water pulse lifting part and a water wheel part are arranged on the lower end surface, close to the end part, of the permanent magnet chipremoval machine body; and the water wheel part is located on one side of the water pulse lifting part and is distributed in the arrangement direction of the conveying belt. According to the magnetic chip removal machine, the water pulse lifting part and the water wheel part are arranged on the lower end surface of the permanent magnet chip removal machine body, the water pulse lifting part is formed by hinging a suspension rod and a semicircular body, a semicircular water storage tank is formed in the upper end surface of the semicircular body, a lifting plate which is obliquely distributed isbent on one side of the semicircular body, one end of the lifting plate is put in liquid, an opening of the semicircular water storage tank faces upwards, the water wheel part rotates to generate water flow pulses, iron chips in flowing water enter the lifting plate, meanwhile, the water flow is pushed into the semicircular water storage tank, the semicircular water storage tank is overturned after being fully loaded with water, the iron chips are driven to ascend to be close to the permanent magnet chip removal machine body, so that the iron chips are adsorbed, and the iron chips do not needto be in direct contact with the liquid.

The invention provides a device for extracting water-repellent humic acid from soil. The device comprises a reaction kettle, a pH regulating unit, a filtering and purifying unit, a first acidification tank, a first pH value regulating unit, an adsorption and enrichment unit, a second acidification tank, a second pH value regulating unit, a humic acid extraction unit and a total control unit. The device for extracting the water-repellent humic acid from the soil, provided by the invention, is simple in structure, convenient to operate and high in automation degree, can separate the water-repellent humic acid and other impurities conveniently and effectively, and can obtain a high-concentration water-repellent dissolved humic acid solution.

The invention provides a drainage air sweeping blade and an air conditioner, and relates to the technical field of air conditioners. The drainage air sweeping blade comprises a blade body and an installation structure, the installation structure is arranged on the blade body and connected with a fan blade cross beam, and a water guide rib is further arranged on the blade body, located over the installation structure and used for guiding condensate water on the blade body to the fan blade cross beam. During actual work, condensate water on the blade body can be guided to the fan blade cross beam through the water guide rib, the condensate water on the blade body is prevented from being gathered to the installation structure and dripping from the installation structure, and therefore the condensate water on the blade body is prevented from being blown out of the air conditioner under the effect of cold air. Thus, compared with the prior art, the drainage air sweeping blade further has the advantages that the experience feeling of the air conditioner is improved.

The invention discloses a pressure type blast furnace red slag waste heat recycling system and method, and belongs to the technical field of blast furnace red slag treatment. The system is characterized by at least comprising a slag flushing unit, a steam condensation heat exchange unit and a slag flushing water heat exchange unit, wherein the bottom of the slag flushing unit is connected with theslag flushing water heat exchange unit through a pipeline valve, and the top of the slag flushing unit is connected with the steam condensation heat exchange unit through a pipeline valve. A traditional slag flushing ditch and a tank are changed into a pressure method slag flushing tank, steam generated by slag flushing is collected, and waste heat is sufficiently recycled. The system and methodare suitable for iron and steel enterprises with relatively high environment control requirements.

The invention relates to a method for batch preparation of a large-pore nanofiber membrane. The method comprises the following steps that 1, a spinning solution needed by preparing the nanofiber membrane is prepared; 2, a second air pump connected with a roller through a second gas-guide tube is switched on, the second air pump conveys gas into the roller until the gas in the roller is uniform; 3,the prepared spinning solution is poured into a spraying device, a first air pump connected with the spraying device through a first gas-guide tube is switched on, the first air pump conveys gas intothe spraying device until stable bubbles are generated in the spraying device, a high voltage power supply is turned on, voltage is adjusted until electrostatic spinning is conducted on the surfacesof the bubbles. Accordingly, by arranging a receiving device to be a roller, the effects that nanofiber is collected to the maximum extent, and waste of resources is reduced are achieved. The method is simple in step and convenient to operate.

The invention relates to a tea garden purging physical deinsectization machine which comprises an air blower, an isolating membrane, an insect collection frame, a gas-distributing pipe and a pulling rope. The air blower is connected with the gas-distributing pipe through a gas outlet pipe, the gas-distributing pipe is mounted on the isolating membrane, and the insect collection frame covers the isolating membrane. The tea garden purging physical deinsectization machine is light in weight, high in overall strength, large in wind energy, wide in effective range and good in insect collection effect, wind directions can be changed back and forth, and insect leakage is omitted.