8 results about "Subsurface irrigation" patented technology

The invention of intelligent subsurface injection irrigation system is a type of integrated injection irrigation system that intelligently irrigates plants and uses available water resources with maximum economy and highest possible efficiency. The present invention includes an inverted conical tank and a water supply system equipped with a floater, a digital moisture meter sensor equipped with a transmitter as well as a humidity sensor information transmission system and also a sensor and thermostatic valve system for connecting and disconnecting the water, a water transfer pump from the main water storage pool to the water transfer network, a control room and a liquid fertilizer injection system in the transfer network as well as a bypass equipped with a valve in the water transfer network and a water storage pool and aquaculture. Also this invention relates to subsurface irrigation methods and systems for detection of humidity and temperature for correct watering.

The invention relates to a farmland irrigation and flood drainage system device and method, and belongs to the technical field of agricultural water conservancy. The device aims to solve the problems that farmland is prone to waterlogging and drought, and a traditional irrigation mode is low in efficiency. According to the technical scheme, the system comprises a long-distance large-diameter water conveying pipeline, a flood drainage pipeline communicated with the long-distance large-diameter water conveying pipeline, a flood drainage opening well arranged in a farmland and communicated with the flood drainage pipeline, an irrigation pipe network buried underground and an irrigation water supply system arranged in the flood drainage opening well. During flood, surface water is converged into the flood drainage pipeline through the flood drainage port well and finally drained into the long-distance large-caliber water conveying pipeline; in drought, the irrigation water supply system takes water from the long-distance large-diameter water delivery pipeline into the flood discharge port well, and then the water is pressurized by the water pump and delivered to the underground irrigation pipe network to irrigate roots of crops. The device integrates drainage and irrigation, achieves the purposes of keeping harvest after drought or waterlogging, saving water and energy, saving time and labor and achieving automatic operation, and has the functions of improving saline-alkali soil, integrally applying water and fertilizer and the like.

The utility model relates to agriculture and can be used for seasonal subsurface irrigation of trees, primarily in areas with sandy loam and sandy soils under conditions of extremely high temperatures and water shortages. The subsurface irrigation device, which includes a tank and a protective screen, according to the utility model, features a tank mounted in a permeable casing with a layer of black soil at the bottom. The tank, within the casing, is mounted on a waterproof protective screen made of bentonite or clay. The tank has a tube at the bottom for delivering water to the plant's rhizome. The top of the tank is equipped with a protective ring made of porous concrete, painted a reflective color. A light indicator connected to a float is installed in the neck of the tank.The device is equipped with a synthetic fabric cord placed in a tube to deliver water to the plant's rhizome for capillary irrigation. The cord's outlet end is connected to a geotextile skirt located around the rhizome. This subsurface irrigation device provides the required irrigation rate in sandy and sandy loam soils, maximizing the use of irrigation water for the irrigated tree's root system.

The utility model belongs to the technical field of irrigation, and discloses an intelligent agricultural subsurface irrigation device which comprises a vertical cylinder, a drainage pipe is fixedly installed on the bottom side of the periphery of the vertical cylinder, an electric valve is fixedly installed in the drainage pipe, a water inlet pipe is fixedly installed in the middle of the periphery of the vertical cylinder, and a floating ball is arranged in the vertical cylinder. An iron sheet is fixedly installed at the bottom of the floating ball, a first contact switch is fixedly installed at the bottom of the inner wall of the vertical cylinder, a plurality of magnets fixedly installed on the vertical cylinder are arranged around the first contact switch, and the downward magnetic force of the magnets to the iron sheet is smaller than the upward buoyancy of the floating ball in water. And whether part of the area is blocked or not can be detected in the drainage process, and use is convenient.

The invention relates to the field of wormwood planting, and discloses a water and fertilizer integrated supply device suitable for wormwood, which comprises an underground irrigation mechanism, the underground irrigation mechanism comprises a pipe body with an open bottom, a water inlet pipe is mounted on one side of the pipe body, and a partition plate is fixedly mounted in the pipe body. The partition plate divides an inner cavity of the pipe body into an upper water inlet cavity and a lower water outlet cavity, the water inlet pipe is communicated with the water inlet cavity, guide rods are symmetrically installed in the water inlet cavity, water inlet channels are formed in the guide rods, the bottom ends of the water inlet channels are communicated with the water outlet cavity, and water inlet holes are formed in the top ends of the water inlet channels in the circumferential direction at equal angles. According to the underground irrigation mechanism, the piston plate is arranged between the water inlet pipe and the water inlet hole, when water enters and the piston plate is pushed to move upwards, the spacer sleeve is synchronously pushed to move upwards, the water outlet hole is conveniently opened when water and fertilizer are output after the underground irrigation mechanism is inserted into the ground, and the situation that the water outlet hole is blocked by soil, and the irrigation effect is affected is avoided.

This invention discloses an artificial microenvironment desalination and water-salt resource utilization device and method, belonging to the technical field of saline-alkali soil treatment and resource recovery equipment. It includes a water supply system, a cold chamber, and a hot chamber. The hot chamber is placed on the desalinated soil, forming a sealed environment, and the light coverage of the entire hot chamber is controlled. The water supply system is used to irrigate the desalinated soil below the hot chamber. A cold chamber is installed on one side of the hot chamber, and a first dehumidifier is installed in the cold chamber. The air inlet of the first dehumidifier is connected to an exhaust fan installed near the top of the hot chamber via an exhaust pipe, and the air outlet of the first dehumidifier is connected to an air supply fan near the bottom of the hot chamber. This invention uses underground irrigation to dissolve salts in the soil at different depths, and then utilizes natural sunlight radiation and soil water potential as driving forces to drive the saline water in the soil to the soil surface. Crystallized salts are then manually scraped off, realizing the resource utilization of soil salts and solving the problems of high cost, low efficiency, and difficult desalination in existing saline-alkali land improvement methods.

The invention discloses a greenhouse water and fertilizer automatic drip irrigation system, and relates to the technical field of irrigation devices, the greenhouse water and fertilizer automatic drip irrigation system comprises a water and fertilizer supply mechanism, the water and fertilizer supply mechanism comprises a water and fertilizer box assembly, a centralized laying pipeline and ports, the water and fertilizer box assembly is connected with one end of the centralized laying pipeline, and the ports are equidistantly formed in the side face of the centralized laying pipeline; the drip irrigation branch mechanism comprises a hose connecting assembly and a drip irrigation branch pipe, each port is connected with one end of the drip irrigation branch pipe through the hose connecting assembly, and drip irrigation pipe openings are formed in the bottom of each drip irrigation branch pipe at equal intervals; according to the greenhouse water and fertilizer automatic drip irrigation system, water and fertilizer can be conveyed to roots of crops in a drip irrigation mode, the water and fertilizer permeate downwards from the ground, it is ensured that the upper positions of the roots of the crops can absorb nutrients, and the water and fertilizer can be directly conveyed to the position below the ground to prevent volatilization of the water and fertilizer.

The invention relates to a farmland irrigation water supply control device and method. An underground irrigation cavity is internally provided with a branch drainage pipe communicated with a branch output pipeline, the bottom of the branch drainage pipe is provided with a lower drainage port with a first electromagnetic valve, the side wall of the underground irrigation cavity is provided with a drainage hole, and the top of the branch drainage pipe is provided with an upper drainage port; a drainage channel is arranged above the transverse baffle, a longitudinal drainage pipe communicated with the upper drainage opening is installed in the drainage channel, a four-way electromagnetic valve is installed on the upper portion of the longitudinal drainage pipe, a transverse drainage pipe is installed in the transverse direction of the four-way electromagnetic valve, and a spray head is arranged on the transverse drainage pipe. The top of the four-way electromagnetic valve is provided with a scattered top nozzle through a square nozzle connecting pipeline; components are adjusted according to requirements, water supply irrigation at different heights of the longitudinal face can be achieved, meanwhile, surplus water can be discharged and collected, usability is high, irrigation types are diversified, and water supply control is accurate.