CN205040360U - Novel non -pressure is irrigated device - Google Patents

Abstract

The utility model belongs to the technical field of the field irrigation, especially, relate to the novel emitter that a novel non -pressure irrigation equipment used. Include: tee bend downstream, the connecting pipe, the concentric reducer, the soil saturation water layer forms the pipe, porous porous disk, grit loaded filter and backfill soil, the perpendicular end of three -way is connected with the microcephaly of concentric reducer downstream, the soil saturation water layer forms in the major part of the bottom entry concentric reducer of pipe, its bottom is porous porous disk, the higher authority place the grit loaded filter, for backfilling soil again, the soil saturation water layer forms top apart from surperficial 40 centimetres~45 centimetres of the soil of pipe, the height -adjusting of soil saturation water layer forms the top of pipe for bottom to the soil saturation water layer of backfilling soil. Have sturdy and durablely, the construction is simple and convenient, especially can conveniently adjust the rise height of the soil saturation water layer that supplies water to the crop root zone through soil capillary water, guarantees that novel non -pressure irrigation system under the crop different water need condition in different growth periods, is in the characteristics of optimalizing irrigation state all the time.

Description

A new type of emitter for a new type of pressureless irrigation device

Technical field:

The utility model belongs to the technical field of farmland irrigation, in particular to a novel sprinkler for a novel pressureless irrigation device.

Background technique:

The invention patent with the publication number CN102160518A - a new pressureless irrigation device, adopts an irrigator with a U-shaped concrete tank as the basic structure (see the patent specification "New Pressureless Irrigation Device" for details). There are the following defects: first, on-site construction requires high-precision concrete pouring and forming equipment, and there are a series of technical problems such as anti-seepage treatment of frost heave expansion joints, which requires a large investment and high difficulty; second, the concrete U-shaped groove is a brittle material that is easily damaged Frost heave, uneven subsidence, and damage caused by farming machinery; the most important defect is the inability to adjust the height of the soil saturated water layer that supplies water to the root layer of the crop through the rise of capillary water in the soil. When crop transpiration consumes little water and soil water continues to rise to the soil surface to form inter-tree evaporation and cause surface soil anti-salt, it cannot be solved by reducing the height of soil saturated water layer. Similarly, the common problem of insufficient water supply to surface soil at seedling stage after subsurface irrigation can not be cured by raising the height of soil saturated water layer.

Utility model content:

The purpose of the utility model is to provide a novel sprinkler for a novel pressureless irrigation device.

The purpose of this utility model is achieved in that:

A new type of sprinkler for a new type of pressureless irrigation device, comprising: an equal-diameter straight-shui tee, a horizontal water inlet end of the equal-diameter straight-shui tee, a horizontal water outlet end of the equal-diameter straight-shui tee, a vertical water inlet of the equal-diameter straight-shui tee, Connecting pipes, large and small heads, soil saturated water layer forming pipes, porous permeable plates, sand and gravel filter layers and backfill soil, the equal-diameter downstream tee is connected in series on the capillary located underground, and the horizontal water inlet end of the equal-diameter downstream tee is connected to the capillary The horizontal outlet end of the equal-diameter straight water tee is connected to the tail end of the capillary. The head ends of all the capillary pipes are connected to the water supply water level control pool through the water supply branch pipe and the main water supply pipe. The tail ends of all the capillary pipes are connected through the drainage branch pipe and The main drainage pipe is connected to the capillary flushing valve. The water supply branch pipe, the drainage branch pipe, the main drainage pipe and all the capillary pipes are located on the same horizontal plane. The flushing valve is closed during the non-capillary flushing operation. The pipe is connected with the small head of the small head, the soil saturated water layer forms the lower end of the pipe vertically inserted into the big head of the small head, the soil saturated water layer forms the bottom of the pipe, and the large head side of the small head’s variable diameter is placed with a porous permeable plate, A sand and gravel reverse filter layer is placed on the porous permeable plate, and the top of the sand and gravel reverse filter layer is backfilled soil. The top of the soil saturated water layer forming pipe is 40 cm to 45 cm away from the soil surface of the irrigated farmland. The height of the soil saturated water layer is adjusted The range is from the bottom of the backfill soil in the soil saturated water layer formation pipe to the top of the soil saturated water layer formation pipe, and the height of the soil saturated water layer is adjusted by adjusting the water level of the corresponding water supply water level control pool. If the water level control device adopted by the novel pressureless irrigation device is adopted, it is only necessary to adjust the height of the inlet nozzle of the water supply tank inlet pipe corresponding to the height of the soil saturated water layer.

The utility model has the following positive effects:

The novel sprinkler used for the new pressureless irrigation device of the utility model is sturdy and durable, and has low investment and simple construction. In particular, it can conveniently adjust the height of the soil saturated water layer that rises through the soil capillary water to supply water to the crop root layer, ensuring The new pressureless irrigation system device is always in the optimal irrigation state under the conditions of different water needs of crops in different growth periods.

Description of drawings:

Accompanying drawing is the schematic diagram of the novel sprinkler used by the novel pressureless irrigation device of the utility model.

detailed description:

A new type of sprinkler for a new type of non-pressure irrigation device, as shown in the accompanying drawings, including: equal-diameter straight-water tee 1, equal-diameter smooth-water three-way horizontal water inlet 1-1, equal-diameter smooth-water three-way horizontal water outlet 1- 2. Vertical water inlet port 1-3 of equal-diameter straight-water tee, connecting pipe 2, large and small head 3, soil-saturated water layer forming pipe 4, porous permeable plate 5, sand and gravel reverse filter layer 6 and backfill soil 7, equal-diameter smooth water The tee 1 is connected in series on the capillary located underground, the horizontal water inlet end 1-1 of the equal-diameter straight-water tee is connected to the head end of the capillary, and the horizontal water outlet 1-2 of the equal-diameter straight-water tee is connected to the tail end of the capillary. The head ends of all capillary pipes are connected to the water supply water level control pool through water supply branch pipes and water supply main pipes, and the tail ends of all capillary pipes are connected to capillary flushing valves through drainage branch pipes and drain main pipes. Located on the same horizontal plane, the flushing valve is closed during non-capillary flushing operations, and the vertical water inlets 1-3 of the equal-diameter downstream tee are connected to the small head of the large and small head 3 through the connecting pipe 2, and the soil saturated water layer forms the pipe 4 The lower end is vertically inserted into the big head of the big and small head 3, and the soil saturated water layer forms the bottom of the pipe 4. On the side of the big head at the variable diameter of the big and small head 3, a porous water permeable plate 5 is placed, and a sandstone reverse filter layer is placed on the porous water permeable plate 5. 6. The top of the sand filter layer 6 is the backfill soil 7, the top of the soil saturated water layer forming pipe 4 is 40 cm to 45 cm away from the soil surface of the irrigated farmland, and the height adjustment range of the soil saturated water layer is the soil saturated water layer formation. Backfill the bottom of the soil 7 in the pipe 4 to the top of the soil saturated water layer to form the pipe 4, and adjust the height of the soil saturated water layer by adjusting the water level of the corresponding water supply water level control pond. If the water level control device adopted by the novel pressureless irrigation device is adopted, it is only necessary to adjust the height of the inlet nozzle of the water supply tank inlet pipe corresponding to the height of the soil saturated water layer. In the embodiment of the novel sprinkler for the new pressureless irrigation device, the equal-diameter straight-water tee 1 adopts a Φ50 equal-diameter straight-water tee of hard PVC material for drainage, and the size head 3 adopts a commercially available hard PVC material for drainage. The Φ50 becomes the big and small head of Φ110, and connecting pipe 2 adopts the Φ50 pipe of the hard PVC material of commercially available drainage.

Claims (1)

1. A new type of sprinkler for a new type of pressureless irrigation device, characterized in that it includes an equal-diameter straight-water tee (1), an equal-diameter straight-water tee horizontal water inlet (1-1), and an equal-diameter straight-water tee horizontal water outlet Ends (1-2), equal-diameter straight water tee vertical water inlet end (1-3), connecting pipe (2), large and small heads (3), soil saturated water layer forming pipe (4), porous permeable plate (5) , sand and gravel filter layer (6) and backfill soil (7), the equal-diameter downstream tee (1) is connected in series on the capillary tube located underground, and the equal-diameter downstream tee horizontal water inlet end (1-1) is connected to the first capillary tube The horizontal outlet end (1-2) of the equal-diameter straight water tee is connected to the tail end of the capillary. The head ends of all the capillary pipes are connected to the water supply level control pool through the water supply branch pipe and the main water supply pipe, and the tail ends of all the capillary pipes are connected through the The drainage branch pipe and the main drainage pipe are connected with the capillary flushing valve. The water supply branch pipe, the drainage branch pipe, the main drainage pipe and all the capillary pipes are located on the same horizontal plane. The flushing valve is closed during the non-capillary flushing operation, and the equal-diameter straight water tee enters water vertically. The end (1-3) is connected with the small head of the large and small head (3) through the connecting pipe (2), and the lower end of the soil saturated water layer forming pipe (4) is vertically inserted into the large head of the small and small head (3), and the soil saturated water layer is formed At the bottom of the pipe (4), on the big end side of the variable diameter of the big and small heads (3), a porous water-permeable plate (5) is placed, and a sandstone filter layer (6) is placed on the porous water-permeable plate (5). The top of the filter layer (6) is the backfill soil (7), the top of the soil saturated water layer forming pipe (4) is 40 cm to 45 cm from the soil surface of the irrigated farmland, and the height adjustment range of the soil saturated water layer is the soil saturated water layer Form the bottom of the backfill soil (7) in the pipe (4) to the top of the soil saturated water layer forming pipe (4), and adjust the height of the soil saturated water layer by adjusting the water level of the corresponding water supply water level control pool.