KR810001225B1 - Soil irrigation system - Google Patents

Abstract

An apparatus comprises; subterranean distribution pipes for distributing water to overlaying soil, each pipe having a perforated upper wall whose outer surface is covered with water permeable means for preventing said overlaying soil from fouling the perforations of said upper wall, and means integral with the retaining said water permeable means in its covering relationship with said upper wall.

Description

[Name of invention]

Soil irrigation system

[Brief Description of Drawings]

1 to 5 are schematic diagrams of various aspects in accordance with the present invention.

6a and b are schematic views of a water supply pipe mounted on one side and two sides of the water supply pipe.

Fig. 7a-e is a perspective view, a side view, and a sectional view of an enlarged water supply pipe branch.

8a and b are cross-sectional and top plan views of the drainage pipe.

9a and 9b is an arrangement cross-sectional view of the drain pipe connection point,

10A to 10F are various cross-sectional views of the drain pipe outline according to the drain pipe outline of FIG.

Detailed description of the invention

Sub-terranean irrigation is one of the conventional soil irrigation systems such as sprinkling irrigation, freshwater relationships, furrows, and overhead irrigation. It is one of the oldest types of irrigation in Wuhan.

The plant only consumes the effect as a water soluble compound. However, excess water is harmful to most plants and can cause corrosion. Therefore, it is very important to supply water in a state where water can be regularly suppressed and to smoothly drain water.

It has been well known that irrigation by sprinkling is particularly useful for horticultural and intensive cultivation in temperate zones and not in hot areas or in areas with high salt salinity. This is because the water brush caused by evaporation cannot be ignored during watering. Fresh water irrigation requires a very large amount of water, and this type of irrigation is used only where it is possible to obtain molten water. Ditch irrigation is useful for agriculture, which can be carried out without having to spend a considerable amount of money on technical work, but it requires a large amount of water because of the large loss of water by evaporation and penetration. Irrigation already described is rarely used in large areas.

Conventional distillation pipe irrigation is equipped with a suction pipe and an outlet valve in a distribution pipe in the ground consisting of only one throw, so that both outlet valves must be pressure-controlled. It does not open until it is actually greater than pressure. The intake valve also drains independently, which should be opened when the soil contains excess water.

However, the irrigation system is only fully functional when the valve slick is clean. Very small amounts of dust, such as grains of sand or dirt, can make the device inoperable, which can prevent flawless irrigation or drainage.

It is an object of the present invention to provide an irrigation device capable of both irrigation and drainage without a valve, no maintenance costs, and minimal operating costs. This irrigation system is especially needed for the development and urbanization of dry areas such as deserts or grasslands where water is hardly available. Also in temperate zones where water is becoming more and more precious, these systems are needed. In addition, because the park and playground grass is always used by the public and it takes a lot of time to supply water, the ground pipe irrigation is not possible. Therefore, the irrigation apparatus of the present invention can achieve such an object and also has the following features. Each drain point consists of at least one part of the branch connected to the feed pipe, which is arranged vertically by a plug-connected branch part with respect to the feed pipe. The drain pipe has a tubular appearance, such as a requirement facing at least one channel area and the ground surface, which extends over the entire length of the drain pipe. The base of this request thereby forms the outer part of the cover plate which is integrally formed with the tubular contour, in which the base has several openings on the end which end at the channel part. It is formed by a pair of cams with a back taper looking. A filter with a cover tube and cam on one side of the back taper is placed on demand to adjust the amount of water flowing out of the channel and prevent sand and soil from entering the opening.

The present invention will be described in detail with reference to the iron drawings as follows.

Five arrangements of the soil irrigation apparatus according to the present invention are shown in FIGS. Point 1 in the figure indicates a water supply source (hereinafter also referred to as pulp field) that supplies water to a pump station or irrigation system. In FIG. 1, only one feed pipe 2 is provided, to which a drain pipe 4 is connected by a part 3 of each branch. The water supply pipe 2 is described in detail in FIGS. 6a and 7a in the following, and the drain pipe 4 is described in the following in FIGS. 8a, 8b, 9a, 9b and 10a-10f. Outflow openings 5 are arranged along the drainage pipe 4 as will be described next in FIG.

At the outer end of each drain pipe 4, the air remover 6 is positioned so that an air pocket does not occur.

The water supply pipe 2 and the drain pipe 4 are actually arranged horizontally or slightly inclined toward the connection point in the ground. The pressure in the feed and drain pipes is selected to ensure that each outlet opening is supplied with an equal amount of water and, on the other hand, that fresh water does not occur in the soil. Probes (not shown) can be arranged in the entire irrigation area to measure the soil's moisture content.

In FIG. 2, two preferred parallel water supply pipes 8, 8 'are located at or near the connection point.

The drain pipe of such a pipe device is disposed to be inclined toward the center of the entire length so that the drainage is made well.

3 is a schematic illustration of an example in which individual irrigation zones A, B and C are fed through a respective feed pipe 13, 14 and 15 by a single feed source 1. Irrigation areas A-C may be stratified areas with different heights, arable land with different water requirements, or plantations with significant distances from each other. Several drain pipes 15, 16 and 17 are connected to feed pipes 12, 13 and 14, respectively, as shown in FIG. The deaerators 12 ', 13' and 14 'are arranged at the ends of each feed pipe, and the deaerators 15', 16 'and 17' are respectively drain pipes 15 and 16, It is arranged at the end of 17. The drain pipes 12, 13 and 14 are maintained at various output pressures depending on the height of the single zones A, B and C or the distance from the water supply 1. This is to allow each outlet opening to supply the same amount of water to each drain pipe. In order to prevent fresh water, a drainage device (not shown) may be applied to the device according to FIGS. 1 and 2, which can remove water at any point of the irrigation installation. have.

4 shows an irrigation system according to the present invention, which consists of a device capable of draining water in addition to supplying water to arable land. The drain pipe 20 is connected to the water supply pipe, and the drain channel 21 is disposed in parallel to the drain pipe and separately installed and connected to the collecting pipe 22, or otherwise referred to as FIG. It can be integrated as part of the drain pipe as described by 10e degrees. In addition, a drainage pit 23 is installed at one end of the collecting pipe 22 to collect the drained water. Of course, this can be recovered back to the irrigation system if there is not enough water.

In the case of the irrigation system according to FIG. 4, it is appropriate that the drain pipe 20 is inclined downward with respect to the feed pipe 19 and an air remover is installed at the outer end thereof.

5 is another example according to the present invention, which shows a feed pipe 25 arranged with an air remover 26 at its outer end. A drainage pipe 27 is connected to both sides of the water supply pipe 25, and a drainage pipe is provided. The drainage pipe 27 and the drainage pipe 28 were gently inclined downwardly from the feedwater pipe 25 so that the water to be drained flowed out into the collecting pipe 29. This water flows into the drain pit 30 and can also be connected to the water supply 1 as shown in FIG. 6a and the lengths of the water supply pipes 31 and 32 consisting of the connection parts 33 and 34 positioned on one or two sides, wherein the connection parts are arranged at a distance of 80-120 cm from each other along the water supply pipe. It became. The connecting sleeve 35 is arranged at one end of the pipes 31 and 32 to form a water supply pipe.

Figures 7a, 7b and 7c are shown in detail in cross-sectional view, partly in side view, with a part of the joint and the connection point of the drainage pipe to the feed pipe 31 according to Fig. 6a. The same parts are indicated by the same reference numerals in FIGS. 6a and 7a-7c. In particular, as can be seen in FIG. 7A, the connecting sleeve 35 is arranged as a plug by inserting end portions between adjacent pipes (not shown) or T-shaped and cross-shaped branch parts (not shown). The connecting part 33 protruded laterally in several places over the length of the pipe 31, and the shape of this connecting part was selected so that the drain pipe of the type shown in FIG. The connecting part 33 may be arranged with a reinforcing member 36 to improve its stability. In this type of connecting part 33, the end of its drain pipe 37 is inserted into the connecting part. The connecting part can also be formed such that each end of the drain pipe can be inserted onto the outer surface of the connecting part. The other cruciform branched part 3 may be a lenticular part for the connection of the drain pipe, as shown in FIG. 1a.

It is connected to an end 41 of a support wall 40 formed with a concave over plate 42 formed of a crescent cross section 39. The cover plate 42 is made up of several openings 43 having a diameter of 2.5-3.5 cm arranged at regular intervals a and b (vertical and horizontal), which are soils from the through-channel 39 around the drain pipe. Make sure that the water is supplied. Arranged between the cover plate 42 at the support wall 40 and the connection point 41 of the holding cam 44, these cams together with the surface of the cover plate 42 make a demand 50. Formed therein is a porous capillary capping layer 45 arrayed in dotted lines. The material of the cover layer 45 is preferably a corrosion-resistant non-woven glass fiber material or plastic.

The thickness of the cover layer depends on the material to be used and is usually 0.5-2.5cm. Nonwoven glass fiber is preferably as thick as mm, and porous foam resin is about 5-6mm. The function of the covering layer prevents dust or sand dust from entering the opening 43 and the cross sectional passage 29. In addition, the cover layer acts to suppress the free flow of water so that the water flows not only through the opening 43 closest to the water supply pipe but also through a relatively distant opening.

On the one hand, the drain pipe can be very long, if necessary, but on the other hand, the connecting slab 38 is secured at the pipe end, since the single pipe is no longer than 4-6 mm long for safe transportation and transportation to the site of use. It needs to be connected. This type of sleeve is shown in Figures 9a and 6b, the shape of which is shown in cross section according to Figure 9a of the drain pipe to be used. The sleeve 38 consists of a back taper 46 formed to extend at least one third of its length and to tighten the adjacent drain pipe ends. A stop shoulder 47 is arranged on both sides of an elevation 48 at the inner end of the pipe to center the sleeve 38 at the bottom point between the two drain pipe ends. It was made.

At the longitudinal center of container portion 48, reinforcement 39 is individually positioned to reinforce sleeve 938 to reinforce drain pipe connections.

8 and 9 show a drain pipe consisting of a crescent-shaped cross section and a single opening, and FIGS. 10a, 10c10d and 10f show another cross-section consisting of a single opening. In FIG. 10A, the cross section of the drain pipe is shown as a semicircular wall 51, the inner side of which is formed integrally with the cover plate 52. As shown in FIG. The lower portion formed by the wall 51 and the cover plate 52 forms a lens-shaped through channel 53, and the opening 54 is formed on the outer surface of the cover plate 52.

Cams 55 facing inward in the longitudinal section are formed at each upper end of the wall 51. By the outer surface portion of the cover plate 52, the cam is formed of a request 56, and also made of a cover layer 56 of a porous porous material that is flexible to act as described in FIG. As already described, the cover layer is a flat material, the middle part of which is located on top of the cover plate 52, and as shown in FIG. 8, this separate part is supported on the inner side by the cam 55. .

In FIG. 10C, one of the drain pipes of a similar type to the above is shown in cross section. On the inner side of the wall 60, which is semicircular in cross section, there is a flat cover plate 61, which is formed by a channel 62 connected to the outside of the drain pipe together with the lower portion of the wall 60.

10C and 10F show a cross section of a drain pipe according to the present invention and another example, wherein the outer wall 70 that determines the appearance consists of three parts. In the two figures the same parts are indicated by the same reference numerals. Outwardly and upwardly inclined sidewalls 72 are formed above the horizontal base 71. Sidewalls 72 are formed above the horizontal base 72. The side wall 74 includes a cam facing inward at their upper end. Inside the side wall 72, the cover plate 74 was formed to form a through channel 75 together with the base plate 71 and the side wall 72. Each cover plate 74 is fitted with an opening 74 in the circumference of the drain pipe, which is made up of a channel 75. The upper axis of the cam 74 and cover plate 74 formed a demand 77 with the cover layer (not shown) centered.

10b and 10c show the cross section of the drain pipe, and the outer walls 80 and 81 of the drain pipe are formed similar to the above as in FIGS. 8a, 10a and 10d.

However, in FIGS. 10B and 10E, the hollow contour of a single channel is divided into three separate spaces, channels 82, 83 and 84, which channels are continuously connected to the top plate 85. Is formed. Parts performing the same function as the two drain pipe sections according to FIGS. 10B and 10E are denoted by the same reference numerals.

Openings 86 and 87 were installed in the upper portion of the circumference of the drain pipe formed of the respective channels in the channels 82 and 84.

Channels 82 and 84 are designed to supply irrigation water from the feed pipe to openings 86 and 87. The intermediate channel 83 is designed as a drainage channel, and a large amount of excess is formed to flow into the inlet openings 88 and 89. The bottom opening channel 83 can also be used for irrigation purposes because it connects to the channels 82, 82 and 84 separately.

Drain pipes according to FIGS. 10a and 10e can be used in irrigation arrangements according to figures 4 and 5. Of course, the drainage of excess excess water (rain, excess of irrigation water) may be adjusted by the openings at the top, depending on where the feed pipe is connected. In addition, the irrigation apparatus according to FIGS. 1 to 3 may be made of pipes as shown in FIGS. 10b and 10e.

The material for the water supply pipe, the drainage, the air spatula, the connecting slave, and the end part is preferably plastic for various reasons. Polypropylene, polystyrene and polyvinyl chloride plastics are the next most suitable materials. The properties of this plastic can be seen from the table. This table shows which plastic is most advantageous for a particular device.

The advantages of the present invention for arable land irrigation are as follows.

Water is supplied exactly to the plant's rooted area.

Water losses due to evaporation or penetration can be reduced to a minimum.

-The amount of water going to the soil can be adjusted easily and accurately according to the cultivation.

-It can add fertilizer of water.

-The quality of water can be continuously adjusted for conductivity, temperature and pH value.

Soil moisture content can be measured relatively easily, irrigated as desired and automatically adjusted if possible.

-Easily ventilate and ventilate the life.

Claims (1)

As shown in the text and described above, an apparatus for regulating the flow of feed water from the water supply source to the absence of drainage points located in the soil areas to be irrigated (2,8,8'-12-14,19; 25; ; 31; 32) apparatus for equalizing the drainage of water with respect to the site (45; 9; 15-17; 20; 27; FIG. 8a; FIG. 8b; FIG. 9a) and the drainage from the water supply source 1; In a soil irrigation system for irrigation of arable land with means for measuring the moisture of soil to regulate the water flowing to point (3; 33), each drain point (3; 33) is provided with at least one main part. (33; 34) is connected to the feed pipe (31; 32), so that the feed pipe (4; 9; 15-17; 20; 27; FIG. 8; FIG. 9) is connected to the plug (FIG. 7). It is arranged vertically with respect to the feed pipe leading from the branched part in the form, and also extends over at least one channel portion (39; 53; 62; 75; 82; 84) and the drain pipe. A cover plate (42; 51; 62; 77; 85) which forms a tubular shape with the drawer (50; 56; 65; 77; 91) facing the surface at the same time as the drawer, but the base of the request is integral with the tubular shape. The outer side of the channel is formed, and several openings 43; 54; 86; 87; 63; 76; 87 are formed at the ends of the channel part. The taper and the doubler are formed laterally limited by a pair of cams 44; 55; 64; 73; 90, and the cover 45 and the filter 45; 47 on one side of the back taper of the cam are positioned on demand. A soil irrigation system that controls the amount of water flowing from the site and prevents sand and soil from entering the openings.

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