CN2241436Y

CN2241436Y - Farmland low pressure is irritated and is oozed device

Info

Publication number: CN2241436Y
Application number: CN 95222452
Authority: CN
Inventors: 翟炳谌
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-28
Filing date: 1995-09-28
Publication date: 1996-12-04
Anticipated expiration: 2005-09-28

Abstract

A low-pressure irrigation and seepage device for farmland is composed of water purifying pool, irrigation and seepage net and impervious pad, the primary pipeline of said irrigation and seepage net is buried in the central line of irrigation and seepage farmland, the channel ends are inserted from the bottom of water purifying pool, the secondary pipeline is buried in the upper part of primary pipeline and communicated with it by cross joint, the tertiary pipeline is buried in the upper part of secondary pipeline, the direction of said tertiary pipeline is perpendicular to that of secondary pipeline, the cross joint of two pipelines is communicated by cross joint, the fourth-stage management is buried in the same plane of tertiary pipeline, and its two ends are vertically inserted in tertiary pipeline.

Description

A kind of farmland low pressure watering apparatus

A kind of farmland low pressure watering apparatus from underground wetting top soil belongs to the irrigation and water conservancy technical field.

At present, northern China has more than 200 ten thousand of supporting pumping irrigation wells, because of continuing to use the water delivery of rib ditch, the original method of border irrigation open fire, technology culvert amount is low, water wasting, expense energy, take a lot of work, whenever drought resisting, do not water timely water.In recent years the antiseepage pipeline water delivery of Tui Guanging still belongs to the border irrigation category.Annual a large amount of its excessive exploitation of groundwater, the drought resisting situation is severe day by day.Technology such as the sprinkling irrigation of introducing, drip irrigation must be equipped with special-purpose high-pressure pump, pipeline, instrument and regulation and control device, and the cost height, the life-span is short, uses maintenance technique strong, and difficulty is big, has tried for many years, is difficult to promote, and the economy and society benefit is very little.Drought resisting has become agriculture hard nut to crack.

The purpose of this utility model provides that a kind of that water is under low pressure automatically poured into is underground, and grow from bottom to top and ooze, wetting crop root soil, facility is simple, and is easy to use, the watering apparatus of energy and labour saving.

The utility model is made up of low pressure cylindrical shape water purifying tank, isobaric irrigation permeating mesh and anti-leakage pad, and low pressure cylindrical shape water purifying tank bottom is recessed circle, and sewage draining exit is left in the bottom side, and central authorities leave an insertion hole.Isobaric irrigation permeating mesh is made up of the Pyatyi pipeline, and first order pipe diameter is thicker, imbed underground about 90 centimetres dark, be embedded on the center line that need establish the pipe network farmland.First order pipeline has only one, and the one end inserts in the water purifying tank from the bottom, and the mouth of pipe is equipped with filter screen, and the other end and a second level pipeline are connected.Second level pipeline has several, and how much quantity decides on water yield size, is generally the 3-10 bar.About 70 centimetres of second level buried depth of pipeline moves towards consistent with the plowing direction in farmland, with logical head of cross and first order pipeline UNICOM.The trend of third level pipeline is vertical with second level pipeline, and quantity is the several times of secondary pipeline, the parallel distribution of each pipeline, and 24 meters at interval, about 55 centimetres of buried depth, every pipeline is leading to a UNICOM with cross respectively with secondary pipeline intersection.Like this, just there is the port that equates with secondary pipeline number in a triode road.Because triode road number is many, volume is big, and many places and secondary pipeline UNICOM are arranged again, so during feedwater, water rises after being full of the triode road simultaneously.Fourth stage pipeline, every is long 24 meters, moves towards vertical with third level pipeline, about 50 centimetres of buried depth, insert in the third level pipeline at two ends, and the distance between the pipe is 4 meters, is evenly distributed in the whole farmland.The level V microtubule is long 1 meter, and an end inserts in the fourth stage pipeline, and the other end is a delivery port, directes reach the anti-leakage pad centre, and anti-leakage pad is made up of barrier sheet down and less last barrier sheet and the layer of sand between the upper and lower barrier sheet.The level V microtubule is separated by two meters, and the two-way parallel distribution in the left and right sides on the level Four pipeline like this, just has a delivery port in per 4 square metres farmland.

The water that delivery port flows out can only upwards be grown on the anti-leakage pad of 70 centimeter square and ooze, and the soil of wetting grown layer is made for thing and needs water.

The utility model has the advantages that: 1) can make water operation automatically under low pressure, can be when crop be drought and levies, according to crop need water quality standard in time quota supply water, to take precautions against drought at leisure.2) adopt low pressure to supply water, any instrument that need monitor and regulate and control not, easy to use, cost is low.3) 1,2,3 grade of pipeline of device adopts plastic tube or vitrified-clay pipe, and 4,5 two-stages adopt plastic tube, and the life-span is long.4) only grow the soil of wet grown layer, avoided the evaporation of moisture and to the excessive seepage of underground deep layer, than bright filling water-saving 70%.5) this device does not harden for water meter soil, need not intertill.When cooperating the deep placement chemical fertilizer, can bring into play the effectiveness of chemical fertilizer to greatest extent, tangible effect of increasing production is arranged.

Below in conjunction with the further illustrated embodiments of accompanying drawing.

Fig. 1 is the horizontal layout schematic diagram of this watering apparatus;

Fig. 2 is the three-dimensional scheme of installation of this watering apparatus.

Among the figure: 1-first order pipeline, 2-second level pipeline, 3-third level pipeline, 4-fourth stage pipeline, 5-water outlet microtubule, 6-go up barrier sheet, 7-layer of sand, 8-following barrier sheet, 9-low pressure water purifying tank, 10-filter screen, 11-sewage draining exit, 12-cross leads to head.

Low pressure cylindrical shape water purifying tank 9 is built the edge of a field in, and the bottom in pond is recessed circle, and sewage draining exit 11 is left in the bottom side, and central authorities leave an insertion hole.Be stamped filter screen 10 above the water inlet of first order pipeline 1, be erected at the centre in pond, and exceed at the bottom of the pond, this pipeline is imbedded underground below 90 centimetres; Pipeline 2 buried depths in the second level are below 70 centimetres, with logical 12 of cross and first order pipeline 1 UNICOM; Third level pipeline 3 buried depths are below 55 centimetres, with logical 12 of cross and second level pipeline 2 UNICOMs; Fourth stage pipeline 4 buried depths directly insert in the third level pipeline 3 below 50 centimetres; One end of water outlet microtubule 5 directly inserts in the fourth stage pipeline, and the other end is a delivery port, directes reach within the layer of sand 7 in anti-leakage pad centre.About 35 centimetres of anti-leakage pads apart from ground.Anti-leakage pad is made up of the following barrier sheet 8 of 70 centimeter square and the last barrier sheet 6 of 30 centimeter square and the layer of sand 7 between the upper and lower barrier sheet.

The device of Gou Chenging like this, at bulk container of underground formation, water is to keep liquid level in container, equates so the head pressure of each delivery port in field is oozed in whole filling.

Claims

1, a kind of farmland low pressure watering apparatus, it is characterized in that: this device is by low pressure cylindrical shape water purifying tank, isobaric irrigation permeating mesh and anti-leakage pad are formed, the head end of isobaric irrigation permeating mesh first order pipeline inserts in the pond by the insertion hole of water purifying tank bottom center, the mouth of pipe is higher than at the bottom of the pond and adds and is stamped filter screen, this piping laying oozes on the center line in farmland in filling, 90 centimetres of buried depths, second level number of tubes is 3 to 10, its trend is consistent with the plowing direction in farmland, 70 centimetres of buried depths, and with logical head of cross and first order pipeline UNICOM, the trend of third level pipeline is vertical with second level pipeline, quantity is the several times of second level pipeline, 55 centimetres of buried depths, the 24 meters parallel distributions of being separated by between each pipeline, linking with the logical head of cross respectively with pipeline intersection, the second level, every in fourth stage pipeline is long 24 meters, and its trend is vertical with third level pipeline, 50 centimetres of buried depths, pipe ends is directly inserted in the third level pipeline, the 4 meters parallel distributions of being separated by between each pipeline, long 1 meter of level V microtubule, the one end vertically inserts fourth stage pipeline, the other end is a delivery port, direct reach the center sand bed of anti-leakage pad, 2 meters in this pipeline, two-way parallel being distributed on the fourth stage pipeline in the left and right sides apart.

2, low pressure watering apparatus according to claim 1 is characterized in that: the bottom of low pressure cylindrical shape water purifying tank is recessed circle, and sewage draining exit is left in the bottom side, and central authorities leave an insertion hole.

3, low pressure watering apparatus according to claim 1, its spy is: anti-leakage pad is to be covered with layer of sand on the following barrier sheet of 70 centimeter square, on layer of sand coated with barrier sheet on 30 centimeter square.