135 results about "Spray volume" patented technology

The invention relates to a scroll wrap profile of a liquid-injected scroll compressor. Outer profiles of a static scroll wrap and a dynamic scroll wrap are composed of a section of a variable diameter base circle involute, and the inner profiles of the static scroll wrap and the dynamic scroll wrap are composed by smoothly connecting a variable diameter base circle involute at a center part and normal equidistant curves of the variable diameter base circle involute of the outer ring. The scroll wrap refers to a scroll wrap with compression chamber variational meshing clearance and the wall thickness of the scroll wrap changing gradually. The meshing part close to a central air outlet of the compression chamber is provided with the meshing clearance which forms a pressure unloading channel to the air outlet with small clearance internal leakage, so that the problems of surge pressure in the compression chamber or liquid impacting which are produced by incompressible liquid with relatively large spraying volume. The meshing point of a suction cavity formed by the scroll wrap has no meshing clearance, so that the suction cavity is completely isolated from the compression chamber; at the same time, the wall thickness of the scroll wrap changes thinner gradually from the center to the outer ring, so that the central part of the scroll wrap has enough strength; and the wall thickness at the outer ring of the scroll wrap is relatively thin, so that area utilization rate of a scroll plate is effectively increased.

The invention relates to a beverage, in particular to an angelica keiskei post-drinking tea prepared from the angelica keiskei used as a raw material. The angelica keiskei is cut up and then processed by high-temperature deactivation of enzymes; the angelica keiskei processed by the high-temperature deactivation of enzymes is frozen quickly and then dewatered; the dewatered angelica keiskei is twisted into 2-5 cm strips, and the strips are baked at high temperature until the water content is lower than 5 percent; peppermint extracts are sprayed and embedded at the spray volume of 5 per thousand, and finally, the processes of sterilization, packaging, inspection and finished product storage are carried out. The process of the angelica keiskei post-drinking tea is simple, and the effective components of the angelica keiskei can be effectively frozen by adopting the mode of low-temperature quick freezing, thereby avoiding wastage and maximizing the efficacy thereof; and the obtained angelica keiskei post-drinking tea has the obvious effect of intoxication prevention, plays the roles of liver and stomach protection, prevention of alcohol absorption, increase of alcohol dehydrogenase activity and acceleration of alcohol metabolism, has good effect on neutralizing alcoholic effect and is the post-drinking beverage with obvious effect.

The invention relates to a vehicle-mounted pesticide mixing device, in particular to an online pesticide mixing device for a large and medium sprayer with a large spray volume. The device can automatically suck pesticide liquid and uniformly mix the pesticide liquid and water online. The vehicle-mounted pesticide mixing device comprises a jet nozzle 1 and a pesticide mixing device shell 3, wherein the pesticide mixing device shell comprises a suction chamber, a tube, a diffusion tube and a pesticide suction port. The requirements of spraying of pesticide liquids of different concentrations are met, the structure is simple, and the nozzle and the shell are convenient to change. According to the vehicle-mounted pesticide mixing device, pesticide and water in the large and medium sprayer are stored separately, and the operations of mixing and spraying are conducted online, so that the degree of automation is high, and environment friendliness and high efficiency are achieved.

The invention relates to a spray-volume vertical distribution measuring method and a special measuring device, and belongs to the technical field of agriculture and forestry engineering test. The method comprises the following steps: setting a fog droplet acquisition device and a liquid volume distribution measuring instrument, placing an atomizing machine or a spray head to be measured in front of the fog droplet acquisition device, starting a power device, intercepting droplets after the fog droplets enter the fog droplet acquisition device, depositing the droplets on each layer of liquid accumulating groove from the top to bottom, and reading accumulated liquid volume in each liquid accumulating tube after the droplets enter each liquid accumulating tube of the liquid volume distribution measuring instrument through a guide tube so as to acquire a fog droplet vertical distribution volume measuring result. The fog droplet acquisition device consists of a fog droplet intercepting flow passage, and the lowest part of the fog droplet intercepting flow passage is provided with the liquid accumulating groove; the liquid volume distribution measuring instrument consists of a row of vertical liquid accumulating tubes; and the lowest part of each fog droplet intercepting flow passage is connected to the liquid accumulating tubes through the guide tube in turn respectively. The invention not only provides accurate and efficient detection means for the detection of spray volume performance of plant protection machinery, but also provides scientific basis for the optimization of operation parameters of the atomizing machine.

The invention disclose a method for reducing difference on two sides of paper-making reconstituted tobacco, which adopts the moistening manner of quantitatively spraying atomized tap water on the back of a coated substrate through an atomizing nozzle to increase the liquidity of coating liquid on the back of a sheet, and prompt the coating liquid on the back to further permeate to the front, and the distribution difference of coating weight on the front and the back is reduced, and uniformly front and back coating weight of the sheet is achieved. The method has less input, simple control, and obvious effect. The vertical height between the atomizing nozzle and the sheet is 250 to 350 mm; the centre line of the nozzle is vertical to an oblique plane of the sheet; the mist granularity is not greater than 300 micrometers; and the spraying volume for the sheet is 150 to 250 g per square meter.

The invention relates to an automatic cleaner for a seat ring of a toilet bowl. An existing automatic cleaner for the seat ring of the toilet bowl is high in spray volume, laborious to use, narrowly applicable or unsanitary. In order to solve the problem, the automatic cleaner for the seat ring of the toilet bowl comprises a rail, a drive belt or drive cord and a scraper. The rail is disposed on the outer edge of an inner hole on the lower surface of the seat ring of the toilet bowl. The drive belt or drive cord surrounds the rail. The scraper is pressed onto the upper surface of the seat ring of the toilet bowl, and the upper end of the scraper is fixed to the drive belt or drive cord. The drive belt or drive cord is provided with a drive wheel driven by a drive motor, a spray pipe is arranged on the scraper. The spray pipe is partially fixed on a winding and unwinding wheel and is communicated with a pressure liquid source. The winding and unwinding wheel is driven manually or by a clockwork spring or winding and unwinding motor. A drooping part of the spray pipe is wound on the winding and unwinding wheel. The automatic cleaner for the seat ring of the toilet bowl has the advantages of simple structure, convenience to use and cleanliness and is widely applicable to various toilet bowls.

The invention discloses a livestock shed cleaning method easy to operate. The method comprises the following steps of 1, conducting livestock shed cleaning pretreatment, wherein a disinfectant is sprayed in a livestock shed, and the spraying volume is 750-960 ml; gathering the manure in the livestock shed by sweeping and carrying the manure away by vehicles; cleaning up cobwebs and the like in the livestock shed by the usage of a whisk broom, and removing manure attached to walls by the usage of a scrapper knife. The livestock shed cleaning method easy to operate disposes the manure and the like in the livestock shed in the initial period of cleaning, so that on one hand, disinfection work is facilitated in the later stage, on the other hand, a majority of bacteria can be cleaned up, and therefore the disinfection work difficulty is reduced in the later stage.

The invention relates to a multi-control intelligent wet test system. The multi-control intelligent wet test system comprises a rack. The rack is provided with a water groove. A supporting device is arranged in the water groove. A spraying assembly is rotatably connected with the position, arranged above the supporting service, of the rack. A water supplying assembly connected with the spraying assembly is arranged inside the position, below the water groove, of the rack. At least one water outlet pipeline used for flowing water in the water groove back into the water supplying assembly is arranged on the bottom end of the water outlet pipe. The multi-control intelligent wet test system has the advantages that a test-needed cleaning test object is fixed on the water groove through the supporting device, the wet test is conducted on the cleaning test object through controlling the spraying assembly by the water supplying assembly, so that the working intensity of an operator during the wet test system operation is improved, the spraying volume is well controlled, and the spraying effect is improved. Due to the fact that spraying liquid flows back into the water supplying assembly through the water outlet pipe after the spraying, and therefore the waste of the spraying liquid is reduced, the wet test efficiency is improved, the using effect is good, and the wet test is convenient to conduct.

The invention discloses an ultrasonic atomizer which comprises a main chip, a three-point capacitance oscillating circuit and a power self-regulation circuit, wherein the main chip is used for providing a spray volume control input signal for the three-point capacitance oscillating circuit; the three-point capacitance oscillating circuit generates ultrasonic waves according to the spray volume control input signal, so as to drive an atomization pieces to atomize water; the power self-regulation circuit is used for detecting a direct current signal of an transistor emitter in the three-point capacitance oscillating circuit, and adopting the direct current signal to regulate the spray volume control input signal. The power self-regulation circuit is adopted for ensure power consistency for the ultrasonic atomizer, and the production procedure that a production line operator regulates power by changing the adjustable resistance value is removed, so that the influence of human factors is eliminated, the production efficiency is improved, and the controllability is high.

The invention provides an emulsion flow differential setting method for a cold continuous rolling unit, and relates to a control device or method specially suitable for a metal rolling machine or machined products of the metal rolling machine, in particular to a spray flow control method for the emulsion on the upper surface and the lower surface of strip steel of a cold continuous rolling unit in the cold continuous rolling unit rolling process. The emulsion flow differential setting method comprises the following steps that the gravity loss coefficient of the emulsion is calculated; the technology parameters of site equipment are collected; the flow setting comprehensive index of the emulsion is calculated; and an optimum setting value of the emulsion on the upper surface and the lower surface of the strip steel is obtained after searching. According to the emulsion flow differential setting method for the cold continuous rolling unit, flow differential setting for the spray volume of the emulsion on the upper surface and the lower surface of the strip steel is conducted, and the spray flow of the emulsion on the upper surface and the lower surface of the strip steel is adjusted, so that the spray flow differentiation of the emulsion on the upper surface and the lower surface of the strip steel is achieved; and the loss, caused by the influence of the gravity, of the emulsion on the lower surface of the strip steel is compensated, the adhesion volume difference of the emulsion on the upper surface and the lower surface of the strip steel is reduced, and therefore the roughness difference of the upper surface and the lower surface of the strip steel is reduced, the quality of the strip steel surfaces is guaranteed, brand competitiveness is improved, and benefits are brought to an enterprise.

The invention discloses an air delivery variable spray test platform, which comprises a rack, wherein a driving system, an air delivery system and a spray system are arranged on the rack, and the driving system is in transmission connection with the air delivery system and the spray system; and a control system is arranged near the test platform, and a canopy structure analysis module, an air volume decision module and a spray volume decision module are embedded in the control system. Operating parameters can be automatically adjusted according to the canopy structure of fruit trees, such as canopy volume, leaf area, tree height, tree age, production season and the like, so that the phenomenon that local overapplication and local control effect are not ideal coexist due to extremely unevenliquid medicine deposited on a unit leaf area is avoided, and the quality of fruit trees and the effective utilization rate of pesticides are improved.

A sprayer system having a sprayer assembly adaptable to a variety of sizes and shapes of containers. The sprayer assembly includes a dual venturi in the flow conduit to provide even pressure and consistent flow in the spray volume. A metering device is coupled to the flow conduit for accurate and reliable regulation of mixture ratios. A dip tube, coupled to the fluid conduit, is adaptable to a variety of container orifices. In addition to acting as a conduit for passage of concentrate into the sprayer assembly, the dip tube may also be used as a cutting device to open the container into which it will be inserted. By adapting to a variety of container orifices, the dip tube allows the sprayer assembly to fit to a variety of containers.

The invention discloses door-shaped movable spraying equipment. The door-shaped movable spraying equipment comprises a door-shaped spraying frame and a nozzle device. A guide rail is fixed to a top crossbeam of the door-shaped spraying frame, a moving pulley is arranged in the guide rail, a vertical cylinder is fixed to the top surface of the moving pulley, a push rod of the vertical cylinder extends downwards to fix a clamping plate, and the nozzle device is fixed to a clamping holder which is fixed to the clamping plate. An adjusting cylinder is fixed to a switch adjusting plate which is fixed to the clamping holder, a moving rod is fixed to a push rod of the adjusting cylinder and inserted into a vertical adjusting through groove of the switch adjusting plate, and a permanent magnet attracted onto a moving block and fixed to one end of the moving rod. The door-shaped movable spraying equipment has the advantages that due to transverse and vertical adjustability, products can be sprayed by different angles, spraying effects are greatly improved, and spraying requirements are met; spraying volume of a nozzle can be adjusted according to needs, so that great convenience is achieved.

A superfine desulfurizer slurry preparation methods and devices relates to the desulfurizer Preparation in flue gas desulfurization technology. The invention is characterized by: preparing the desulfurizer slurry using block-shaped calcarea lime materials in larger size, using local high temperature reaction heat when block-shaped calcarea lime hydrate and the volume expansion action of lime hydration to break the block-shaped calcarea lime into super-fine calcium hydrate particles. The preparation method can significantly reduce the desulfurizer particle size, not only increase calcium utilization rate of desulfurizer particles and reduce the spray volume of desulfurizer slurry, but also enhance the suspension property of desulfurizer particles in slurry; it can reach higher desulfurization efficiency under lower rate of calcium to sulfur, while increase the security and stability of system operation significantly, thereby achieves semi-dry desulfurization system highly effective and stable operation.

The invention discloses an efficient energy-saving brushless diesel pump which comprises a shell, a brushless motor assembly, a controller, a filtering device, an oil inlet volume detecting device and a flow controlling device. The flow controlling device is composed of an oil spray volume detector and a voltage regulator, wherein the oil spray volume detector and the voltage regulator are electrically connected with the controller; the oil spray volume detector is arranged inside an oil spray nozzle of a diesel engine; the voltage regulator is arranged inside a controller seat. The intermittent work time of the diesel pump can be set through a timing controller, and the working efficiency and energy-saving effect of a product are improved; voltage-variable oil supply can be set through the flow controlling device according to the required oil supply volume, the power waste of a motor is avoided, and the diesel pump saves more energy and is more economical; the oil inlet volume detecting device detects whether oil exists in an oil tank or not, a pump body can be prevented from idling, and the service life is prolonged; the oil can be preheated through a heating device; meanwhile, the diesel pump is compact in structure and is driven through the brushless motor, noise is low, and the service life of the product is greatly prolonged.

A spray cooling device for a centrifugal casting metal mold consists of an automatic temperature monitoring feedback system and spraying equipment and comprises a mold cylinder (10), end caps (20), an air header (30), a water header (40), electromagnetic valves (50), infrared probes (60), spraying nozzles (70), a temperature sensor (80), a steam deflector (90) and an induced draft fan (100). The automatic temperature monitoring feedback system includes the infrared probes (60) and the temperature sensor (80); the spraying equipment includes the air header (30), the water header (40), the electromagnetic valves (50) and the spraying nozzles (70); the spraying nozzles (70) are of two-way annular design with water running in an inner way and air running in an outer way, so that spraying is achieved by adjusting flow ratio of air and water. By the spray cooling device, real-time control of temperature of different stages of the metal mold is achieved; according to temperature feedback, spraying volume of different stages is changed automatically, casting mold temperature field is adjusted, structure segregation during solidification of metal liquid is controlled effectively, and local overheating of the casting mold can be avoided.

Disclosed are an ink-jet printing head, an ink-jet printing method using the ink-jet printing head and an ink-jet printing device including the ink-jet printing head. The ink-jet printing head includes a chamber for accommodating ink and nozzle sets provided on a sidewall of the chamber where ink is sprayed. The nozzle sets are used for ink-jet printing on pixels at different positions, respectively. Each of nozzle sets includes sub-nozzles and the sub-nozzles in each nozzle set can spray different volumes of ink. In the printing head, by providing sub-nozzles having different ink spraying volumes in each nozzle set, ink droplets having desirable volumes can be sprayed from nozzle sets such that total volumes of ink droplets sprayed at different positions from nozzle sets could be more accurate. Therefore, a thickness of a film layer formed by ink-jet printing can be flexibly controlled and adjusted, while having a significantly improved accuracy.

The invention relates to a disinfecting safe handle device for a metro compartment. The device comprises a handle soft belt, a handle base, a disinfectant storage chamber, a handholding cavity, an infrared sensor, a mesh enclosure, an electronic element and a battery bin, wherein the handle base is arranged at the lower end of the handle soft belt; the disinfectant storage chamber containing disinfectant is arranged on the handle base; the handholding cavity is arranged on the two sides of the disinfectant storage chamber; the mesh enclosure is arranged at the lower end of the handholding cavity; a liquid spraying hole located on the disinfectant storage chamber and the infrared sensor located at the lower end of the disinfectant storage chamber are arranged at the lower end of the mesh enclosure; the infrared sensor is used for spraying the disinfectant from the liquid spraying hole; the electronic element and the battery bin which are connected with the infrared sensor are also arranged at the bottom of the disinfectant storage chamber. According to the disinfecting safe handle device for the metro compartment provided by the invention, after a passenger holds the handholding cavity by hand, the disinfectant can be automatically sprayed from the handholding cavity so as to disinfect and clean the hand; the infrared sensor is adopted for sensing, so that the spraying volume can be precisely measured and the disinfectant is prevented from being wasted; the service life is prolonged; the disinfecting safe handle device is convenient to use and can meet the market requirements.

The invention discloses a spray system for a tea garden. The spray system can reduce infrared radiation effects on soil and plants, thereby preventing frost damage; the spray system is capable of effectively protecting plants on the earth surface, can generate fog clusters according to the demands of the plants so as to protect the growth of the plants, and belongs to tea garden management methods. The spray volume of a fog making system can be adjusted at any time according to different growing seasons and humidity demands of the plants so as to meet requirements for appropriate humidity in crop growth without accumulation of water. On the other hand, a certain amount of drugs are added into a water inlet device of the fog making system and are sprayed out in the form of fog which suffuses the whole environment, so the effect of killing pathogenic bacteria in the whole environment can be effectively achieved and tea quality is improved. The spray system provided by the invention is a green, environment-friendly and low-cost system capable of improving tea quality.

The invention discloses a spray control method based on volume feature pre-judging. The method comprises the following steps: the distance detection of the plant canopy on one side or both sides of the sprayer is carried out by using some distance detection points based on the center line of the sprayer body when the spray zone begins; the canopy width corresponding to the detection point is calculated; the maximum canopy width of a canopy partition is used as the width of the discrete spray volume of the canopy partition; the discrete canopy volume of each canopy partition is calculated; theamount of spray and air volume required for the next spray partition is calculated. The invention also discloses a spray control system based on volume feature pre-judging. The method can adjust the spray amount in time and accurately by detecting the spray object and pre-judging the volume in advance and add the precise bypass air regulation fuction which can increase the penetration and deposition amount of the liquid and reduce the spray waste.

The invention discloses an ink droplet spraying method and device. The device mainly comprises a linear pulse motor, a screw rod, a piston, a compressed air pipe, an ink storage chamber, a nozzle, a heat element and the like, wherein the linear pulse motor produces power, and the piston is pushed by the screw rod, so that ink in the storage chamber is sprayed out from the nozzle; simultaneously the compressed air pipe is arranged in the storage chamber, when the piston moves, compressed air generates pulse pressure to the ink, so that uniform and continuous ink droplets are sprayed, and an effect of cleaning the storage chamber is achieved; and the heat element in the fluid storage chamber can heat the ink, so that the viscosity of sprayed liquid is reduced, and the spraying performance is improved. The ink droplet spraying method and device have the advantages of simplicity in operation, strong practicality, wide application range of fluid materials, uniform and continuous ink droplets and controllable ink spray volume and ink spray speed. The method and the device can be widely applied to an inkjet printing imaging system and study of jet fluid mechanics.

A sprayer system having a sprayer assembly adaptable to a variety of sizes and shapes of containers. The sprayer assembly includes a dual venturi in the flow conduit to provide even pressure and consistent flow in the spray volume. A metering device is coupled to the flow conduit for accurate and reliable regulation of mixture ratios. A dip tube, coupled to the fluid conduit, is adaptable to a variety of container orifices. In addition to acting as a conduit for passage of concentrate into the sprayer assembly, the dip tube may also be used as a cutting device to open the container into which it will be inserted. By adapting to a variety of container orifices, the dip tube allows the sprayer assembly to fit to a variety of containers.

The invention discloses a granulation binder of compound fertilizer and an application method thereof. The application method of the granulation liquid binder is characterized by: using industrial aluminum sulfate or sulfuric acid to prepare a 5-10 % solution, and using soluble silicate to prepare a 5-10 % solution; uniformly mixing production raw materials of the compound fertilizer according to the proportions of the formula, conveying the mixed materials to a disc granulator or a drum granulator, spraying the two solutions as a granulation liquid phase according to a ratio of 1:2-3 by using different nozzles, wherein, the total spray volume is 5-8 % of the total amount of the compound fertilizer materials; carrying out reaction on the two binders to generate a cement, carrying out bonding, rolling, and granulation on the compound fertilizer materials, and then drying and sieving to obtain a compound fertilizer product. According to the invention, the cost of the binder is low, the operation process is simple, the granulation process can be simplified, the ball-forming effect is good, the strength of the particles is large, and the reverting ratio is low.

The invention discloses a method for spraying mepiquat-chloride to a cotton field at low altitude by an aviation plant protection unmanned aerial vehicle. Under specific weather conditions and withina preset time, the mepiquat-chloride serving as a plant growth regulator is sprayed to cotton by the unmanned aerial vehicle in aviation plant protection. In the spraying process, the flight height ofthe aviation plant protection unmanned aerial vehicle is 1.5 meters above the tops of cotton plants, flight speed is 5 meters per second, spraying width is 4 meters, spraying volume is 1 liter per mu, and the dosage of the mepiquat-chloride is 10g per mu. The method for spraying the mepiquat-chloride to the cotton field at low altitude by the aviation plant protection unmanned aerial vehicle caneffectively improve the action effect of the mepiquat-chloride and has the advantages that spraying efficiency and operation efficiency are high, labor, time and water are saved, accordingly, cost isreduced and the like.

An automatic spray cooling device for a centrifugal casting mold cylinder comprises a mold cylinder (10) and end caps (20) arranged at two ends of the mold cylinder (10). A water header (30) is arranged on the mold cylinder (10), infrared temperature measurers (50) for measuring temperature of the mold cylinder (10) are arranged on a steam deflector (80), spray heads (60) are arranged on the lower side of the water header (30), and a program analysis controller (70) used for controlling water flow electromagnetic valves (40) is arranged on the steam deflector (80). With the automatic spray cooling device, real-time control of temperature of different stages of the mold cylinder is achieved; according to the temperature feedback, spraying volume of different stages is changed automatically, casting mold temperature field is adjusted, structure segregation during solidification of metal liquid is controlled effectively, and local overheating of the mold cylinder can be avoided.

The invention discloses a concrete placement surface microclimate adaptive control method. Temperature, wind speed, solar radiation and other parameters of the concrete placement surface and the water temperature parameters of a spraying machine acquired by a data acquisition subsystem are utilized, the target spraying volume required by the concrete placement surface is determined according to the preset target casting temperature, and the power of the spraying machine is adaptively adjusted according to the calculated target spraying volume so that the spraying volume of the spraying machine is enabled to reach the target spraying volume and the concrete placement surface is enabled to achieve the target casting temperature. The spraying volume can be adaptively adjusted according to various parameters of the concrete placement surface acquired in real time based on the present concrete placement surface microclimate control system so that accurate control and adjustment of the temperature of the concrete placement surface can be realized.

The invention discloses a city sprinkling truck intelligent sprinkling control system including a single-chip microcomputer 1, a single-chip microcomputer 2, a vehicle speed detection circuit, a total valve control circuit, a spray pressure detection circuit and a liquid level detection circuit, the single-chip microcomputer 1 is connected with the vehicle speed detection circuit, a display circuit 1, the spray pressure detection circuit, the liquid level detection circuit, the total valve control circuit, a pressure regulating valve control circuit, a total valve stroke signal acquisition circuit, a pressure regulating valve stroke signal acquisition circuit, a power module, an interface module and an interface circuit, and the single-chip microcomputer 2 is connected with a keyboard circuit, a display circuit 2, an alarm circuit and an interface circuit, and the interface module is further connected with an air quality detection module. The city sprinkling truck intelligent sprinkling control system can detect the surrounding air quality, can automatically adjust the spray volume, and is high in intelligence degree.

The invention discloses a fruit tree volume-variable spraying system and a spraying volume decision making method. The system comprises a moving cart, a pesticide box installed on the moving cart, several sprayer sets and radars, wherein the sprayer sets and the radars are arranged from top to bottom; the sprayer sets comprise pipelines, electromagnetic valve switches, proportional electromagneticvalves and several sprayers; one ends of the pipelines are communicated with the pesticide box; the electromagnetic valve switches and the proportional electromagnetic valves are arranged on the pipelines; the sprayers are in parallel connection at the other ends of the pipelines from top to bottom; all the sprayers are located on the same vertical line; the radars are located in front of the sprayer sets. The system has the advantages of being precise in spraying, effective and the like.

The invention discloses an agricultural production management method, an agricultural production management device and an agricultural production management system. The agricultural production management method includes: obtaining growing environment monitoring data collected by a preset monitoring point in a database; generating growing environment data corresponding to each farmland unit according to the growing environment monitoring data based on a preset algorithm; generating a management plan of each farmland unit according to the corresponding growing environment data, wherein each management plan includes a farmland irrigation volume, a farmland fertilizing amount and a farmland pesticide spraying volume. The agricultural production management method, the agricultural production management device and the agricultural production management system can specially perform management of irrigation, fertilizing, pesticide spraying and the like on each farmland unit according to the growing environment data of each farmland unit, save energy of water, fertilizer, pesticide and the like, and improve agricultural production efficiency.