93 results about "Subsurface irrigation" patented technology

The invention discloses an orchard underground hole irrigation method which belongs to underground irrigation. The orchard underground hole irrigation method is characterized in that 'fertilizer water holes' are buried in a root system distribution layer of a fruit tree, the 'fertilizer water hole' consists of four parts, namely an underlay plastic film (10), a water absorption and fertilizer storage material (9) mixed with a fertilizer, broken brick bats (8) wrapped by the water absorption and fertilizer storage material, an irrigation tube (3) inserted into the center of the broken brick bats. Each fruit tree is provided with 4-8 'fertilizer water holes', water is injected into the 'fertilizer water holes' by the irrigation tube (3) via a funnel and 10-20 L of water is filled into each hole. During fertilizing, the fertilizer water can be injected into the 'fertilizer water holes', thus the nutrient is directly transported to the root system centralized distribution area and fertilizer efficiency is improved. The method has the advantages of easily available materials, low production cost, water saving and drought resistance, not only can reduce evaporation from land surface and surface runoff, but also can prevent irrigation water from seeping to the deep soil layer; meanwhile the orchard underground hole irrigation method takes advantage of the 'hydrotaxis' and 'fertilizer anemotaxis' of the root system to confine the root system in or around the 'fertilizer water holes', thus improving the utilization rate of nutrient and water.

A drip emitter for subsurface irrigation includes a valve chamber defining a hollow interior, an entry port and at least one exit port. A flexible diaphragm is mounted in the hollow interior of the valve chamber for movement in response to pressurized water being supplied to the hollow interior through the entry port. The drip emitter further includes a tortuous path water flow channel that limits the flow of water from the hollow interior of the valve chamber to the at least one exit port. A closure member is moved by the flexible diaphragm to open the at least one exit port when pressurized water enters the hollow interior to allow water to be discharged through the at least one exit port. A spring moves the closure member to close the at least one exit port when the supply of pressurized water is shut OFF.

The invention provides an intelligent irrigation system. The intelligent irrigation system comprises a water storage tank, a medicament mixing tank, a fertilizer mixing tank, a spraying system and an underground irrigation system, wherein one path of passage is formed by the water storage tank, the medicament mixing tank and the spraying system; one path of passage is formed by the water storage tank, the fertilizer mixing tank and the underground irrigation system; the spraying system and the underground irrigation system are arranged respectively and can both be used for irrigating; when pesticide needs to be sprayed to crops, a medicament can be added into the medicament mixing tank and the pesticide is sprayed while irrigation is carried out through the spraying system; when fertilizer needs to be applied to the crops, the fertilizer can be added into the fertilizer mixing tank and the fertilizer can be applied while the irrigation is carried out through the underground irrigation system; uniform application of the pesticide and the fertilizer can be ensured; a humidity sensor is arranged and can be used for detecting moisture content of soil; and the irrigation can be carried out or stopped according to moisture content conditions, so that growth requirements of plants can be met, the yield is improved and water resources are not wasted.

The invention discloses an irrigation and drainage integrated device suitable for a high underground water level. The irrigation and drainage integrated device comprises a set of underground irrigation pipelines, an underground water conveying pipeline, a water storage pool body, a water inlet pipe, a water outlet pipe, a water pump and two automatic control valves of the water pump, wherein one end of each underground irrigation pipeline is connected with the underground water conveying pipeline; a water permeable film is mounted at the other end of each underground irrigation pipeline; the underground water conveying pipeline is connected with the water inlet pipe; the water inlet pipe is connected with the water storage pool body; the first automatic control valve is mounted on the water inlet pipe; one end of the water outlet pipe is connected with one side of the water inlet pipe; the other end of the water outlet pipe is connected with the water storage pool body; and the water pump and the second automatic control valve are respectively mounted on the water outlet pipe. According to the irrigation and drainage integrated device, redundant underground water can be drained under higher underground water level of farmland and is stored in the water storage pool body, and infiltrating irrigation is carried out through the underground irrigation pipelines under lower underground water level, so that the irrigation and drainage functions are achieved, the water resources are saved and high and stable yield of crops can be facilitated.

In the subsurface irrigation of crops, using injectors to provide micro-bubbles of useful gases of improvement of delivery of a more uniform stream with lesser variation in gas content and lesser tendency of particulate fines to settle out, thereby reducing the need to flush the system with attendant waste of water.

A drip emitter for subsurface irrigation includes a valve chamber defining a hollow interior, an entry port and at least one exit port. A flexible diaphragm is mounted in the hollow interior of the valve chamber for movement in response to pressurized water being supplied to the hollow interior through the entry port. The drip emitter further includes a tortuous path water flow channel that limits the flow of water from the hollow interior of the valve chamber to the at least one exit port. A closure member is moved by the flexible diaphragm to open the at least one exit port when pressurized water enters the hollow interior to allow water to be discharged through the at least one exit port. A spring moves the closure member to close the at least one exit port when the supply of pressurized water is shut OFF.

The present invention provides subsurface irrigation systems and air injection mechanism and microbubble generating mechanism. The systems of the present invention are operable to provide an evenly distributed air microbubbles in a stream of fluid (e.g., subsurface irrigation water) to evenly provide gas therein (e.g., oxygen for plants receiving the irrigation water along an entire length of an irrigation line). The microbubble generating mechanism may use pressure generated from flow of fluid to cavitate the fluid and thereby distribute gas microbubbles in the fluid. In irrigation examples, the resulting air infused water delivers an effective amount of oxygen to the roots of the irrigation crops.

An underground irrigation system which supplies beneath the surface of the soil under or near the roots of a growing crop, water infused with micro bubbles of gas (usually air). A mixer / injector injects and mixes gas into water to form a mixed stream that flows from a header into a plurality of branches. The mixed stream emits from the branches. An air bleed releases gas from the system which has separated from the mixed stream.

The invention relates to an underground micro-irrigation device, and belongs to the technical field of agricultural water-saving irrigation. The underground micro-irrigation device disclosed by the invention comprises a groundbreaking cone and an outer tube, wherein the groundbreaking cone is arranged at the lower end of the outer tube, an advance-retreat rotating rod, a water inlet pipe, a fixator, a soil scraper and an emitter are arranged in the outer tube, the fixator is arranged in the middle of the outer tube, the advance-retreat rotating rod and the water inlet pipe are fixed in the outer tube through the fixator, the soil scraper is arranged on the lower side inside the outer tube, a sliding rail is arranged at the lower part of the outer tube, and the emitter is arranged on the sliding rail. The underground micro-irrigation device disclosed by the invention can satisfy the water demands of crops; due to adoption of underground irrigation, water can be saved, so that the root system of a crop can achieve the best water uptake effect, and the utilization efficiency of water can be improved; the device can be inserted and drawn out randomly as required, and does not need to be pre-buried underground, the position and depth of irrigation can be adjusted, and the emitter has small possibility of being jammed; and the device is convenient to carry, easy to install, good in water-saving effect, and easy to popularize and apply.

According to the present invention, an irrigation system pipe system 10 for aerating and watering a tract of land includes a first irrigation pipe section 14 having first and second isolated flow channels 34, 36, extending between the inlet and outlet ends 14a, 14b of the pipe section 14, the second flow channel 36 having a plurality of openings formed therethrough; a second irrigation pipe section 14′ having first and second Isolated flow channels 34′, 36′, extending between the inlet and outlet ends 14a′, 14b′ of the pipe section 14′, the second flow channel 36′ having a plurality of openings 38 formed therethrough; and coupling means 16 for interconnecting the first and second irrigation pipe sections 14, 14′ so that water flowing through the first flow channels 34,34′ and through the second flow channels 36, 36′ can flow between the first and second flow channels of the first and second irrigation pipe sections.

The invention relates to an anti-clogging pulse subsurface irrigation system. After passing though pulse valves before each capillary, pressurized water enters each capillary in the manner of pulse water flow which ascends rapidly and descends slowly by pressure, thus irrigating crop through the subsurface water irrigator of each capillary. Rapidly-ascending pressure can form strong impact to clogging, slowly-descending pressure does not cause the water in the capillaries behind the pulse valves to generate 'springback' which can form negative pressure at the water outlets of the water irrigators, and therefore the negative pressure suction type clogging of the water outlets is avoided. The subsurface water irrigators with capillaries which are provided with longitudinal seams are adopted, the longitudinal-seam water outlets open and close under the action of pulse water flow, and the mechanical pull force and the impact force of the water flow jointly act on the water outlets so that the anti-clogging performance is excellent. The impulse frequency is adjustable in a large range, and under the same water irrigation intensity, the pulse frequency can be slowed down; and the subsurface water irrigators with large water outlet diameter are adopted to constitute the pulse subsurface irrigation system without filters. The anti-clogging pulse subsurface irrigation system has the characteristics of being simple in structure and low in input cost.

A soil moisture auto control system which can be used in subsurface irrigation, outer space agricultural farm irrigation, semi-arid and arid agricultural areas irrigation and nutrients addition, as well as auto watering and nutrients addition devices for flower and / or vegetable pots in indoor planting, by an external negative pressure design system responding to soil moisture needs by plants in the agricultural areas by bi-directional flows arrangements to automatically adjust moisture needs for plants.

The invention discloses a pressure adjustable type subsurface irrigation system which is characterize by comprising a pressure adjusting chamber (1), a water supply chamber (2), a water conveying capillary pipe (3) and a watering machine (4). The watering machine (4) is buried underground and communicated with the water conveying capillary pipe (3) which is connected with the water supply chamber (2) with the lower end sealed, a vertically-movable air inlet pipe (6) is inserted inside the water supply chamber (2) through the upper end of the water supply chamber (2), the pressure adjusting chamber (1) is provided with a sealed lower end, a vertically-movable air inlet pipe (5) is inserted inside the pressure adjusting chamber (1) through the upper end of the pressure adjusting chamber (1), and an air outlet mouth (8) is arranged at the upper end of the pressure adjusting chamber (1) and communicated with the air inlet pipe (6) through a pipeline (10). The pressure adjustable type subsurface irrigation system is simple in structure and convenient to use, manage and maintain, so that labor is saved; fertilizer can be dissolved in water for manuring irrigation, so that utilization efficiency of the fertilizer is improved, and pollution of soil and underground water is reduced; and the system is diverse in function, and various subsurface irrigation modes such as positive-pressure subsurface irrigation, non-pressure subsurface irrigation and pressured subsurface irrigation can be realized by pressure adjusting.

This underground irrigation system comprises the following steps: embedding a porous pipe 22 into the ground of the fields (cultivation areas 13), setting up a water level setting tool 31 on the lower-stream side of the porous pipe, regulating a drainage water level by the water level setting tool to set the water level of the field, embedding an underground water supply pipe 41 for supplying water for use from a water supply channel 14 into the ground of the field, connecting the underground water supply pipe 41 with the porous pipe 22 at the drainage side of the porous pipe to supply the water for use from the underground water supply pipe to the porous pipe.

A valve manifold vault, lid, and vault support base for subsurface irrigation system valve manifolds. The vault, lid, and support base provide a secure enclosure that prevents movement of a valve assembly and protects valves and valve components.

The invention discloses a water collecting type subsurface irrigation planting container which comprises a container shell and a partition cover plate in the container shell. The partition cover plate is arranged in the container shell and divides the water collecting type subsurface irrigation planting container into a lower water storage space and an upper planting medium space, the partition cover plate is provided with at least one extending panel extending downward to the bottom of the container shell, the planting medium space extends downward from the extending panel to the bottom of the water storage space, and the lower end of the extending panel is provided with a water outlet seam communicating the water storage space with the planting medium space. The water collecting type subsurface irrigation planting container integrates quick water collecting, water storage and subsurface irrigation, and meanwhile is easy and convenient in planting management, good in planting effect, reasonable in structure, convenient and quick to manufacture, low in price and high in quality.

A modular green roof and / or green wall system includes a plurality of trays adapted to support vegetation and soil therein. The trays are sized such that a person may easily lift them and install them in a pre-vegetated state upon a roof or a wall. The trays are further designed to enable subterranean irrigation lines to be inserted therethrough, thereby hiding the irrigation lines from view. Biodegradable walls may be added of different heights to the trays to support different types of vegetation, as well as to create terracing for a given installation, if desired. A wicking material may be inserted into the tray and positioned such that is makes contact with wicking material in adjacent trays, thereby spreading moisture between trays through the capillary action of the wicking material.

The invention belongs to the technical field of field irrigation, and particularly relates to an anti-blockage drip irrigation douche. The drip irrigation douche comprises a top cover, a dripper and a flow stabilizing valve, wherein an inner cavity of the dripper is divided into two parts, namely a water inlet cavity and a buffer cavity, by the flow stabilizing valve which is embedded into the inner cavity of the dripper and is a hollow conical body provided with a downward opening and of which the tip is provided with a crossed star-like cut; on the lower part of the buffer cavity, the hollow conical tip of the dripper is provided with a crossed cut; and the dripper is connected with a capillary pipe through the top cover. The drip irrigation douche has a pressure compensation function, can also guarantee the uniformity of irrigation under the condition of long capillary pipes or complex terrain, has self-flushing and automatic pressure boosting unblocking self-repair functions, can be used for resisting physical blockage and biological blockage, has superior anti-blockage performance and is particularly suitable for underground irrigation and under-film irrigation in which the drip irrigation douche is difficult to replace. The drip irrigation douche has a simple structure and high durability and is convenient to process, produce and use and low in investment.

An apparatus and method are disclosed for applying fertilizer, weed killer, pesticides, and other botanical treatment liquids through an in-ground irrigation system using an inexpensive, easily installed apparatus with exchangeable treatment containers. An adaptor connects in series with an irrigation pipe and supports an inverted treatment container. Treatment liquid enters the irrigation system due to gravity, Venturi effect suction, a pressure differential caused by a constriction in the adaptor, and / or a diverter that diverts water into the container. Embodiments include a cap for sealing the adaptor, a barrier with a hole that controls treatment dispensing rate, a constriction for increased Venturi suction, and / or a protrusion that penetrates a membrane seal on a pre-filled container. Treatment liquid can be dispensed from a collapsible bag inside the treatment container. Embodiments with large containers include structural reinforcements or separate supporting stands. Some embodiments include a closable chamber that protects the apparatus from weather.

An irrigation assembly has a main pipeline supported at intervals by mobile towers, a plurality of drop tube assemblies at spaced intervals along the pipeline and a collector positioned to receive water from the drop tube assembly. A plurality of targets are positioned on the ground in the paths of motion defined by the movement of the collectors. The targets may be dishes. Each dish preferably has a perforated drain that penetrates beneath the surface of the ground. Interaction between the collector and the target causes the water stored within the collector to be released into the target. The irrigation assembly may provide for underground irrigation without a collector where a dish or trough receives water from the drop tube assembly and underground drains allow for water to be dispersed below the ground.

The invention relates to the technical field of agricultural underground irrigation, in particular to an energy-saving and environment-friendly three-dimensional underground infiltration irrigation device. The energy-saving and environment-friendly three-dimensional underground infiltration irrigation device comprises a vertical tank body, wherein the upper end and the lower end of the vertical tank body are provided with an upper sealing cover and a lower sealing cover respectively; the vertical tank body is provided with a plurality of infiltration pipes for infiltration irrigation around from top to bottom; the vertical tank body is connected with the infiltration pipes to form an infiltration irrigation unit; a water inlet pipe is arranged on the vertical tank body positioned above theinfiltration pipes; and a water inlet valve is arranged on the water inlet pipe. The energy-saving and environment-friendly three-dimensional underground infiltration irrigation device provided by the invention is not limited by regions, is more convenient and flexible to get water, and can not only connect with a pressurized pipeline, but also directly inject water manually, which fully solves the problem that conventional irrigation cannot be implemented due to hardening of road surfaces and uneven mountain slopes in urban greening, and greatly improves the survival rate of afforestation indesertified land.

A method of suction irrigation with mulch film covering under the true soil layer relates to a water saving irrigation method in which the mulch film or earth-work mulch film and laid-out under the true soil of certain depth. Under the soil of earth surface a water isolating layer is laid out. According to the requirement to lay out a water storage layer above said water-isolating layer and to lay a reversed filter layer above the water storage layer. To lay a soil layer above the reversed filter layer the water will be supplied to the soil around the plant root system by the capillarity and the evaporatino action of soil surface. The water isoalting layer with protect the water in water storage layer from penetrating to the under-ground and the reserved filter layer will protect the soillayer at above from blocking the water storage layer which connects to water supply and drainage ditch through water penetrating wall for water supply and rain water collection. The present inventioncan be used for water supply to lawn for city green, turf for sports field vegetables in greenhouse and others.

The invention relates to the field of farmland irrigation and water conservancy, in particular to an intelligent water-saving subsurface irrigation and drainage system to overcome the defects that in the existing farmland irrigation technology, the utilization rate of water resources is low, drainage of stagnant water is difficult, and the automation degree is low. The intelligent water-saving subsurface irrigation and drainage system comprises a water supply device, a subsurface irrigation net pipe, a draining device, a control module and a humidity sensing module. The water supply device comprises a water supply pump, a pressure tank and a first solenoid valve X1 used for being connected with the pressure tank and the subsurface irrigation net pipe. The draining device comprises a vacuum pump and a second solenoid valve X2 used for being connected with the subsurface irrigation net pipe and the vacuum pump. The control module comprises a control chip U1, wherein the two output ends of the control chip U1 are connected with the first solenoid valve X1 and the second solenoid valve X2. The humidity sensing module comprises a humidity sensor U2 and two test electrodes J1 and J2, wherein the two test electrodes J1 and J2 are connected with the two input ends of the humidity sensor U2, and the output end of the humidity sensor U2 is connected with the input end of the control chip U1.

The invention discloses an underground pipe irrigation system and a construction method thereof for a sponge city. The system comprises infiltration pipes, a regulating box, a flow-spitting box and pressurized tanks. The infiltration pipes are evenly distributed on diversion pipes which are connected to the regulating box through a collecting pipe; the diversion pipes and the collecting pipe are connected through a triple valve; the regulating box is connected with the flow-spitting box through a water transmission pipe; the water transmission pipe is provided with a water suction pump; the flow-spitting box is connected to the pressurized tanks through the diversion pipes; the pressurized tanks are connected with underground pipes. The method comprises following steps: underground pipe layout, flow-spitting box construction, regulating box construction, infiltration pipe construction and the operation of the irrigation system. The method of the invention has simple steps, rainwater is effectively collected so as to be used for underground irrigating; therefore, water accumulation is effectively reduced; waste of water resource is reduced; rainwater reclamation is facilitated; the construction method can meet the needs of irrigation in cities having different terrains.

An apparatus and system for irrigation is disclosed. The Save-A-Tree-System Apparatus is an apparatus for sub-surface irrigation which uses a rigid or semi-rigid tube with a plurality of fluid emitters disposed in the tube, which is buried in order to deliver irrigation to the root-zone of plants, which can be connected in series to efficiently direct irrigation to multiple locals, and which has an internal reservoir for the application of fertilizer, pesticide, fungicide, or the like, to an individual location to supplement system-wide treatment. Irrigation water or treated water is delivered from a source to the Save-A-Tree-System Apparatus via a connecting hose. A pressure regulator, filter and / or directional flow check valve may also be installed between the source and a Save-A-Tree-System Apparatus as needed to control the irrigation water that is delivered to the apparatus. The Save-A-Tree-System Apparatus may also simultaneously provide both aboveground and sub-surface irrigation and aeration.

A portable device for irrigating the roots of plants has a handle, a stem, and a removable base supporting removable spikes. The stem of the device is adapted for connection to a hose. The spikes each have openings for delivering water. The device has an on / off switch, which may be manually operated or electronically operated. The device is configured to optionally allow the flow of another substance into the stem of the rake, such as plant food.

Systems and methods to supply water to plants in a direct and efficient manner by employing aboveground plumbing to individual plants, but not allowing the water to be dispersed aboveground. The water is directed to an underground container or cartridge assembly that dispenses the water through a dissipater (e.g., wick) into the surrounding soil. The cartridge assembly of the underground irrigation system may be installed in-line with supply water lines and deep enough that the dispersed water does not return near the surface which allows for working the soil over the underground irrigation system. Each of the cartridge assemblies of the underground irrigation system may be installed in line between two plants in a narrow trench at a depth of approximately 6 to 12 inches (e.g., 8 inches), so that each end of each cartridge assembly supplies water to one side of one of the two plants.

The invention relates to a negative pressure irrigation system and method. The system comprises a negative pressure underground irrigation device and a negative pressure regulator. The negative pressure underground irrigation device irrigates crops under the action of negative pressure. The negative pressure regulator automatically regulates negative pressure of the system. A soil humidity sensor is used for monitoring water content of soil in real time, the real-time soil water content and expert's information about current actual water demand of crops are combined in a controller, and an optimal irrigation strategy is formulated. A step motor is driven for direction and speed regulation according to the optimal irrigation strategy, vertical position of a lift table is controlled, the position of a water supply unit can be regulated, water supply suction of the system is dynamically regulated, and accordingly the soil water content is dynamically regulated so as to truly supply water according to demands of the crops.

The present invention discloses one kind of sewage treating and sewage reusing lawn irrigation system. The technological scheme includes sewage intake pipe, underground sand filtering pond, deposition pond connected to the filtering pond and equipped with water pump and vertical water pipe, and connected underground irrigation pipe net. There is control room set over the deposition pond. The present invention is used for in-situ treatment and reuse of sewage, and can reduce the burden of the downstream sewage treating yard, save processing expense and make full use of the nutritious resource in sewage, and has the advantages of simple and reasonable structure, low use cost and high use effect.

The invention relates to the technical field of agricultural machines, in particular to a ditching and pipe distributing device for burying subsurface drip irrigation pipes. The ditching and pipe distributing device for burying the subsurface drip irrigation pipes comprises a rack, ditching plow assemblies, soil covering and pressing assemblies and pipe distributing assemblies, wherein the ditching plow assemblies, the soil covering and pressing assemblies and the pipe distributing assemblies are arranged on the rack. The pipe distributing assemblies are used for laying the drip irrigation pipes in ditches formed through the ditching plow assemblies, and the soil covering and pressing assemblies are located behind the ditching plow assemblies and used for burying the drip irrigation pipes in the ditches formed through the ditching plow assemblies. According to the ditching and pipe distributing device for burying the subsurface drip irrigation pipes, ditching, pipe distributing, burying, soil covering, pressing and other operation for the subsurface drip irrigation pipes are integrated, integrated operation is achieved, pipe distributing operation is carried out without manual operation, the mechanization degree and the automation degree are higher, the labor intensity for subsurface drip irrigation pipe laying can be lowered, and therefore laying time for the subsurface drip irrigation pipes is substantially shortened, laying efficiency of the subsurface drip irrigation pipes is improved, and engineering cost input for a subsurface drip irrigation system is reduced.