WO2005046313A1

WO2005046313A1 - Intermittent drip-irrigating strap

Info

Publication number: WO2005046313A1
Application number: PCT/CN2004/000912
Authority: WO
Inventors: Yongbiao Qin
Original assignee: Yongbiao Qin
Priority date: 2003-08-11
Filing date: 2004-06-06
Publication date: 2005-05-26
Also published as: CN1838875A; CN100558231C; CN1484943A

Abstract

The invention relates to an intermittent drip-irrigating strap with a pipe-like valve structure, which can realize the circulation of the water diversion and release. Instead of the conventional drip-irrigating assembly discharging water by consuming energy, the invention operates the water diversion at first and then discharges water to attain the purpose of slow water-diversion and even irrigation, thereby solving the problems caused by high energy consumption, easy blockage and high cost. There are three kinds of water diversion mode in the invention, that is the gravitation water diversion, the water storage Vesicae Cubage water diversion and the main pipe segment water diversion. The pipe-like valve refers to the film pipe valve, the septum pipe valve, the clamping pipe valve and the extrusion pipe valve. The intermittent drip-irrigating strap using the gravitation water diversion is placed on the wavy ground, the water outlet is at the bottom, the delivery pipe is controlled by the pipe-like valve. To an intermittent drip-irrigating strap using the water storage Vesicae Cubage water diversion, the water intake pipe and the water delivery pipe are controlled by pipe-like valves. To an intermittent drip-irrigating strap using the main pipe segment water diversion, the water delivery pipe in each section is controlled by pipe-like valves.

Description

Intermittent drip irrigation belt

Technical field

The invention relates to a drip irrigation waterer, and in particular to a type of intermittent drip irrigation belt.

Background technique

At present, drip irrigation sprinklers all use the energy dissipation method of the outlet channel to achieve slow and uniform water discharge. It can be said that energy dissipation is an essential feature of current drip irrigation sprinklers. In order to dissipate energy, the size of the outlet channel of the irrigation device is generally small, which makes the irrigation device easy to block. The problem of irrigation blockage can be solved by fine filtering and chemical treatment of irrigation water, but energy consumption and costs also increase. At present, the working head of a drip irrigation sprinkler is generally 5 m to 15 m, and there are very few water sources that can provide such a high pressure head. Therefore, the drip irrigation system generally needs to be equipped with pressure equipment and high pressure grade pipes, which increases the drip irrigation. cost. From the above, it can be known that there are three main factors restricting the widespread promotion of drip irrigation: high investment, easy clogging of irrigation devices, and high energy consumption. The root cause of these factors is the technical route of energy dissipating water from the hanging irrigation device.

Summary of the invention

The object of the present invention is to provide a type of intermittent drip irrigation belt that does not dissipate water with an outlet channel, has ultra-low energy consumption, is not easily clogged, and has low cost.

The technical solution of the present invention is as follows: A tubular valve (hereinafter referred to as a tube valve) is provided on the intermittent drip irrigation belt. With the cooperation of the tube valve, the intermittent drip irrigation belt with various structures realizes a cycle of water separation and drainage. The pipe valve includes a plastic film pipe valve, a plastic diaphragm pipe valve, a pinch pipe valve and an extruder. There are four types of tube valves. The plastic film tube valve is composed of a plastic film tube valve sleeve with a pair of water inlet and outlet ports and a plastic film tube valve core located in the valve sleeve. The diameter of the film tube valve core is equal to or greater than Folding diameter. The working principle of the plastic film tube valve is: the film tube valve core is inflated and expanded, its outer wall blocks the passage between the water inlet and outlet, the tube valve is closed; when the air is released, the tube valve is opened. The plastic diaphragm tube valve is composed of a plastic film tube valve sleeve with a pair of water inlet and outlet ports and a plastic diaphragm valve core located in the valve sleeve. The diaphragm valve sleeve can be divided into upper and lower walls. The width is equal to or greater than the width of the lower wall of the valve sleeve and less than or equal to the width of the upper wall of the valve sleeve. The working principle of the plastic diaphragm pipe valve is: the channel on the pipe valve is filled with air to expand, and the diaphragm. Blocks the passage between the water inlet and the outlet, the pipe valve is closed; when the air is released, the pipe valve is opened. The pinch tube valve is composed of a plastic film tube valve sleeve and a number of plastic film tube spools that traverse the valve sleeve. The two ends of the film tube spool are water inlets and outlets, of which the valve sleeve and the film tube spool intersect. The part is welded, and the length of the film tube spool bounded by the intersecting line is equal to the folded diameter of the valve sleeve. The working principle of the pinch tube valve is: the valve sleeve is filled with air, the inner wall of the membrane tube spool is pinched against each other under pressure, the channel between the water inlet and the outlet is closed, and the tube valve is closed; when the air is released, the tube valve is opened. Squeeze tube valve is composed of a plastic film extrusion tube (hereinafter referred to as extrusion tube) for extrusion and a number of film transverse tubes (hereinafter referred to as transverse tubes) under the extrusion tube. It is the water inlet and outlet. The position of the squeeze pipe and the transverse pipe is relatively fixed. The boundary line between the squeeze pipe and the transverse pipe is used as a boundary, and the length of the transverse pipe is equal to the width of the lower wall of the squeeze pipe. The working principle of the squeeze pipe valve is: the squeeze pipe is filled with air to expand, and the transverse pipe is squeezed Pressure, the channel between the water inlet and outlet is closed, and the tube valve is closed; when air is released, the tube valve is opened. When the water inlet and outlet of the pinch pipe valve and squeeze pipe valve are too wide, several welding points can be added at the water inlet and outlet, so one water inlet (outlet) forms several water inlets (outlet), which can ensure the pipe Effect of valve closing. The water separation method of the present invention can be divided into three types, one is to divide water by gravity, the other is to divide water by using the volume of a water storage bag, and the other is to divide the main pipe into sections to divide water. An intermittent drip irrigation belt using gravity separation is placed on the wavy ground, the water outlet is located in the trough, and the water outlet channel is controlled by a pipe valve. The intermittent drip irrigation belt that uses the volume of the water storage bag to divide water, and the water inlet and outlet channels of each water storage bag are controlled by pipe valves. The intermittent drip irrigation that separates the main pipe into sections of water, and the outlet channel of each pipe is controlled by a pipe valve.

The intermittent drip irrigation belt avoids the technical route that the previous drip irrigation device relies on energy dissipation, and uses the method of first dividing the water and then discharging the water to achieve the purpose of slow water discharge and uniform irrigation. The intermittent drip irrigation belt does not rely on energy dissipation water, and its energy consumption is only slightly higher than that of general ground irrigation. The higher part is mainly the energy consumption of opening and closing the tubular valve. This part of the energy consumption can be provided without irrigation water, so the intermittent drip irrigation belt can directly Self-pressure drip irrigation using canal water and low-pressure pipe water. The outlet channel of the intermittent drip irrigation belt does not need to have the energy dissipating function, so the outlet channel can be made very large. Such a drip irrigation belt is not easy to block, and even if it is blocked, it can be manually cleaned. This is an advantage that ordinary drip irrigation belts do not have. The intermittent drip irrigation belt has a low working head, so the pipe wall can be made thin, the amount of consumables is small, and it can be manufactured using recycled materials, so the cost is low. Compared with general drip irrigation systems, drip irrigation systems using intermittent irrigation belts generally do not need to be equipped with high energy-consuming pressurizing equipment, high pressure grade pipes and fine filtering equipment. BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a plan view when the embodiment 1 is flat Fig. 2 is an enlarged cross-sectional view along the line A-A in Fig. 1 Fig. 3 is an enlarged cross-sectional view along the BB line in Fig. 1 Fig. 4 is a plan view when the embodiment 2 is flat Fig. 5 4 is an enlarged cross-sectional view taken along the line CC in FIG. 4 FIG. 6 is an enlarged cross-sectional view taken along the line DD in FIG. 4. FIG. 7 is a plan view when the third embodiment is flat. FIG. 8 is a plan view when the fourth embodiment is flat. Enlarged sectional view of the middle E-E line. Fig. 10 is a plan view of the fifth embodiment when it is flat. Fig. 11 is an enlarged cross-sectional view along the F-F line in Fig. 10. Fig. 12 is a cross-sectional view along the GG line in Fig. 10. Example 6 Top view when flattened FIG. 14 is an enlarged cross-sectional view taken along line H-H in FIG. 13 FIG. 15 is a cross-sectional view taken along line I-1 in FIG. 13 FIG. 16 is a plan view when embodiment 7 is flat FIG. 17 is an embodiment 8 Top view when flattened FIG. 18 is a plan view when Embodiment 9 is flattened FIG. 19 is an enlarged cross-sectional view taken along line J-J in FIG. 18 FIG. 20 is a top view of Example 12

Fig. 21 is an enlarged sectional view taken along the line K-K in Fig. 20 Fig. 22 is an enlarged sectional view taken along the line L-L in Fig. 20

23 is a plan view of Example 13 when flat 24 is an enlarged sectional view along line MM in 2 3

Figure 25 is an enlarged sectional view taken along line N-N of Figure 2

Fig. 26 is a plan view of Example 16 when flat

Figure 27 is an enlarged sectional view taken along line 0-0 in Figure 26

Fig. 28 is a sectional view taken along line P-P in Fig. 26

detailed description

Embodiment 1: FIG. 1 is a plan view when Embodiment 1 is flat, FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is an enlarged cross-sectional view taken along line B-B in FIG. In Embodiment 1, the main pipe 1 is connected to a membrane tube valve. The membrane tube valve is composed of a membrane tube spool 7 and a valve sleeve. The valve sleeve is composed of a membrane tube valve seat 6 and several pairs of inlet and outlet water. The water inlet 5, the membrane valve seat 6, the membrane tube spool 7 and the water outlet 8 constitute a valve unit, and several valve units constitute a membrane tube valve. The main pipe and the valve sleeve of Embodiment 1 can be welded by using two plastic films. The thick solid lines 2, 3, and 4 in the figure are welding lines, and the dotted line in the same line as the welding line is the water inlet or outlet. The film outside and around the dotted line can be properly stretched during the production process, which can widen the water inlet and outlet. Embodiment 1 belongs to a gravity-divided intermittent drip irrigation belt, which must be placed on a wavy terrain. The working principle is that the intermittent drip irrigation is automatically circulated back and forth through two independent phases, namely, a water separation process and a water discharge process. In the water separation stage, the pipe valve is closed, and then the valve of the control main pipe is opened, and the pressure water flows into the main pipe. When the main pipe is filled with water, the water separation process ends; the valve of the control main pipe is closed, then the pipe valve is opened, and the intermittent drip irrigation belt enters the water discharge stage. The output of each drip unit of the drip irrigation belt is the Displaceable.

Embodiment 2 FIG. 4 is a plan view when Embodiment 2 is flat, FIG. 5 is an enlarged cross-sectional view taken along line C-C in FIG. 4, and FIG. 6 is an enlarged cross-sectional view taken along line D-D in FIG. In the second embodiment, the main pipe 9 is connected to a diaphragm tube valve. The diaphragm tube valve is composed of a diaphragm valve core 12 and a valve sleeve. The valve sleeve is composed of an upper wall 11, a lower wall 13 and a plurality of pairs of water inlets and outlets. The water inlet 10, the upper wall 11, the diaphragm 12, the lower wall 13 and the water outlet 14 constitute a valve unit, and several valve units constitute a diaphragm tube valve. The second embodiment is a gravity-divided intermittent drip irrigation belt, and its working principle is the same as that of the first embodiment.

Embodiment 3: FIG. 7 is a plan view when Embodiment 3 is flat. The difference of the second embodiment of the third embodiment lies in the diaphragm valve core. The diaphragm tube valve of the second embodiment shares a diaphragm valve core, while the valve unit of the diaphragm tube valve of the third embodiment has an independent diaphragm valve core.

Embodiment 4: Fig. 8 is a plan view when Embodiment 4 is flat, and Fig. 9 is an enlarged sectional view taken along line E-E in Fig. 8. The difference between Embodiment 4 and Embodiment 2 is two points. One is that a thin film strip with a width not less than the width of the upper wall of the main pipe is welded on the main pipe of the fourth embodiment, and the other is that the outlet of the diaphragm tube valve of the fourth embodiment is opened. Under the diaphragm. The pipe formed by adding a thin film strip to the main pipe is used to fill air and exhaust the air in the main pipe when air enters the main pipe.

Embodiment 5: FIG. 10 is a plan view when Embodiment 5 is flat, FIG. 11 is an enlarged sectional view along line FF in FIG. 10, and FIG. 12 is a sectional view along line G-G in FIG. In Embodiment 5, the main pipe 15 and the pinch pipe valve Connected, the pinch tube valve is composed of a valve sleeve 17 and a pinch tube 18, and two ends of the pinch tube 18 are a water inlet 16 and a water outlet 19. Embodiment 5 is a gravity-divided drip irrigation belt, and its working principle is the same as that of Embodiment 1.

Practical Example 6 _: FIG. 13 is a plan view of Example 6 when it is flat, FIG. 14 is an enlarged sectional view taken along line HH in FIG. 13, and FIG. 15 is a sectional view taken along line I-I in FIG. 13. In Embodiment 6, the main pipe 20 is connected to an extruded tube pipe valve. The extruded tube pipe valve is composed of an extruded tube 22 and a plurality of horizontal tubes. Two ends of the horizontal tube 23 are a water inlet 2 1 and a water outlet 24. Embodiment 6 belongs to a gravity-divided intermittent drip irrigation belt, and its working principle is the same as that of embodiment 1.

Embodiment 7: Fig. 16 is a plan view when Embodiment 7 is flat. The seventh embodiment is equivalent to adding a diaphragm tube valve to the side without a tube valve in the second embodiment. The distance and spacing between the outlets of the two diaphragm tube valves can be determined according to actual needs. This embodiment can adjust the dripping distance, and the minimum dripping distance can be obtained when both sides of the valve are in operation; the maximum dripping distance can be obtained when one side of the valve is working and the other side is kept closed; Can change the drip location.

Embodiment 8: Fig. 17 is a plan view when Embodiment 8 is flat. In Embodiment 8, the diaphragm tube valve 25 is connected to the main pipe 26, the main pipe 26 is connected to the diaphragm tube valve 27, and the diaphragm tube valve 27 is connected to the diaphragm tube valve 28. In the diaphragm tube valve 27, the water outlet not controlled by the diaphragm tube valve 28 is opened below the diaphragm, and the water outlet controlled by the diaphragm tube valve 28 is also the water inlet of the diaphragm tube valve 28. The outlet water spacing and mutual spacing manner of each pipe valve in this embodiment can be determined according to actual needs. Compared with Example 7, Embodiment 8 is more flexible in adjusting the drip distance and the drip location.

Embodiment 9: Fig. 18 is a plan view when Embodiment 9 is flat. Fig. 19 is an enlarged sectional view taken along line J-J in Fig. 18. In the embodiment, the main pipe 29 is connected to the pinch tube valve 30, the pinch tube valve 30 is connected to the water storage bag 31, and the water storage bag 31 is connected to the pinch tube valve 32. The water storage bags are not connected to each other, which is helpful to eliminate the longitudinal force caused by the expansion of the water storage bags. The embodiment 9 belongs to a water-storage volume water-distributing intermittent drip irrigation belt. The working principle is to implement intermittent drip irrigation through two separate phases of a water separation process and a water discharge process. In the water dividing phase, the pinch tube valve 32 is closed, and then the pinch tube valve 30 is opened, and the pressure water in the main pipe 29 is filled into the water storage bag; in the water discharging phase, the pinch tube valve 30 is closed, and then the pinch tube valve 32 is closed. Turn on, water flows by gravity. In order to improve the uniformity of irrigation in this embodiment, the water outlet of the intermittent drip irrigation belt can be manufactured or made low by using terrain, so that the discharge capacity of each water storage bag is relatively uniform. The volume of each water storage bladder in this embodiment can be set according to actual needs, and is not necessarily consistent.

Embodiment 10: Embodiment 10 is equivalent to welding a thin film tube on the welding line on both sides of the water storage bag of embodiment 9. The lower wall width of the film tube is greater than the upper wall width of the water storage bag. The working principle of embodiment 10 is similar to that of embodiment 9, except that the water is discharged by gravity in embodiment 9, while the water can be squeezed out by using the pipe on the storage bladder. . The water outlet of the embodiment 10 can be appropriately extended into a pipe, so that a small pipe can be connected and the water can be flexibly transported to the destination.

Embodiment 11: Embodiment 11 is equivalent to welding a film strip on the main pipe of embodiment 10. The width of the film strip cannot be smaller than that of the upper wall of the main pipe. Width. This embodiment can not only irrigate water, but also apply gas fertilizer (such as co ₂ ). After the application of gas fertilizer is completed, the film tube above the main pipe is filled with air, and the gas fertilizer in the main pipe is squeezed out, then the pipe valve next to the main pipe is closed, and then the gas fertilizer in the water storage bag is squeezed out, and finally the stage is closed. After the above process is completed, the intermittent drip irrigation belt resumes the irrigation function. If you need to switch from the irrigation state to the state of applying gas fertilizer, repeat the above process.

Embodiment 12: FIG. 20 is a top view of Embodiment 12, FIG. 21 is an enlarged cross-sectional view taken along the line K-K in FIG. 20, and FIG. 22 is an enlarged cross-sectional view taken along the line L-L in FIG. Example 12 is equivalent to adding a pinch pipe valve to the unstaged official valve of Example 10, and the added pinch pipe valve controls the water outlet of the upper pinch pipe valve according to the actual situation. There is no controlled The membrane between the outlet pinch pinch valve must be cut off. This embodiment can adjust the drip pitch and change the drip spot.

Embodiment 13 3: FIG. 23 is a plan view when Embodiment 13 is flat. FIG. 24 is an enlarged cross-sectional view taken along line M-M in FIG. 23, and FIG. 25 is an enlarged cross-sectional view taken along line N-N in FIG. Main pipe 34-one side is connected to the pinch pipe valve 3 5, the other side is connected to the gas pipe 33, and the partition pipe 36 is transverse to the main pipe

34. Inside, one side communicates with the gas pipeline and the other side is welded. The length of the partition pipe is equal to or slightly larger than the folded diameter of the main pipe. This embodiment belongs to a main pipe disconnection and water separation type intermittent drip irrigation belt, and its working principle is: in the water dividing stage, the pinch tube valve is closed, and then the air in the gas pipe and the partition pipe is released, and the pressure water is filled into the main pipe. After the main pipe is filled with water, Fill the air pipe and the partition pipe with air. The expansion of the partition pipe divides the main pipe into sections. During the isolation process, the water pressure in the main pipe increases. The pinch pipe valve is forced to open, and the excess water flows out of the pinch pipe valve. The water leaks out, and the diaphragm tube valve is still closed after the completion of the partition. In the water discharge phase, the pinch tube valve is opened, and the water in the tube section flows out by gravity. The above two processes cycle back and forth to achieve intermittent drip irrigation. In order to improve the uniformity of irrigation in this embodiment, the water outlet can be manufactured or made use of terrain to have a low potential, so that the discharge capacity of each main section is relatively uniform.

+ Example 14: Example 14 is equivalent to adding a film strip to the main pipe of Example 13. The width of the film strip is larger than the width of the upper wall of the main pipe with the welding line as the boundary. All water (gas) in the main pipe is squeezed out. In this embodiment, both water can be irrigated and gas can be applied.

Embodiment 15: Embodiment 15 When a pinch pipe and a valve are added to the unstaged pinch pipe valve of Embodiment 13, the added pinch pipe valve can control the water outlet of the upper stage pipe valve according to actual needs. The membrane between the uncontrolled water outlet P and the stage valve must be cut off. In this embodiment, the dripping interval can be adjusted.

Embodiment 16: FIG. 26 is a plan view when Embodiment 16 is flat. 7 is an enlarged sectional view taken along line 0-0 in FIG. 26, and FIG. 28 is a sectional view taken along line P-P in FIG. In Embodiment 16, the main pipe 38 is connected to the pinch pipe valve 40 on one side, and connected to the gas pipe 37 on the other side, and the partition pipe 39 is transverse to the main pipe 38, and one end communicates with the gas pipe 37 and the other end is tightly sealed. The length of the partition pipe 39 is equal to or slightly larger than the width of the upper wall of the main pipe. This embodiment belongs to the main pipe partition type water-discontinuous intermittent dripper belt, and its working principle is the same as that of the thirteenth embodiment.

Example 17: Example 17 is equivalent to the supervisor in Example 16 A thin film tube is added, wherein the intersection of the thin film tube and the partition tube is not welded, and the width of the lower wall of the thin film tube is greater than the width of the upper wall of the main pipe. This embodiment can both irrigate and apply gas fertilizer.

Embodiment 18: Embodiment 18 is equivalent to adding a pinch pipe valve to the pinch pipe valve of embodiment 16. The added pinch pipe valve can control the upper pinch pipe valve according to actual needs. At the water outlet, the film between the uncontrolled water outlet and the unstaged pinch valve should be cut off. In this embodiment, the dripping distance can be adjusted.

In addition to the above embodiments, there are many embodiments of the present invention. Since these embodiments are easy to imagine, they are only briefly mentioned, such as intermittent drip irrigation belts with two main pipes sandwiching a tube valve, and different water distribution methods are used at the same time. The compound intermittent drip irrigation belt, the intermittent drip irrigation belt with the same water separation method are simply merged together, an intermittent drip irrigation belt with a plurality of rows of water storage sacs, and a valve structure at the same time.

The invention also has a variety of changes, substitutions and modifications, such as the interaction of various pipe valves, the number of additional pipe valves and the proportion of each part of the intermittent drip irrigation belt are adjusted according to actual needs.

In short, the embodiments of the present invention are endless, and all that can be easily associated and imagined from the description should be deemed to fall within the protection scope of the present invention.

Claims

Rights request

1. An intermittent drip irrigation belt, characterized in that the intermittent drip irrigation belt is provided with a tubular valve that reciprocates the water separation process and the water discharge process. The water separation process is the use of gravity water separation and water storage tank volume water separation One or more of the three ways of separating water from the main section.

2. An intermittent drip irrigation tape according to claim 1, wherein the tubular valve is a plastic film tube valve, a plastic diaphragm tube valve, a pinch tube valve, and a squeeze tube valve.

3. An intermittent drip irrigation tape according to claim 2, characterized in that the plastic film tube valve is a plastic film tube valve sleeve provided with a pair of water inlet and outlet ports at intervals, and a plastic film tube valve located in the valve sleeve. The core is composed of a film tube with a folded diameter equal to or larger than an inner folded diameter of the valve sleeve.

4. An intermittent drip irrigation belt according to claim 2, characterized in that the plastic diaphragm tube valve is a plastic film tube valve sleeve provided with a pair of water inlet and outlet ports at a certain interval and a plastic diaphragm valve core located in the valve sleeve. The valve sleeve can be divided into upper and lower walls with the diaphragm as the boundary. The width of the diaphragm valve core is equal to or greater than the width of the lower wall of the valve sleeve and less than or equal to the width of the upper wall of the valve sleeve. -

5. An intermittent drip irrigation belt according to claim 2, characterized in that the pinch tube valve is composed of a plastic film tube valve sleeve and a plurality of plastic film tube spools which traverse the valve sleeve, and the plastic film tube valve The two ends of the core are the water inlet and outlet, respectively. The intersecting part of the valve sleeve and the membrane tube spool is welded.

6. An intermittent drip irrigation belt according to claim 2, characterized in that The squeeze pipe valve is composed of a plastic film squeeze pipe for extrusion and a number of plastic film transverse pipes that lie under the squeeze pipe. The two ends of the transverse pipe are where the water inlet and outlet are located. The position of the tube is relatively fixed, with the boundary line where the extruded tube intersects with the horizontal tube as a boundary, and the length of the horizontal tube is equal to the width of the lower wall of the extruded tube.

7. An intermittent drip irrigation belt according to claim 1, characterized in that the intermittent drip irrigation belt utilizing gravity water separation is placed on a wavy ground, the water outlet is located in a trough, and the water outlet channel is controlled by a pipe valve ; The intermittent drip irrigation belt that uses the volume of the water storage bag to divide the water, the inlet channel and the outlet channel of each water storage bag are controlled by pipe valves; Controlled by pipe valve.