CN201450985U - Negative-pressure pipe-type pressure regulator of infiltrating irrigation device - Google Patents
Negative-pressure pipe-type pressure regulator of infiltrating irrigation device Download PDFInfo
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- CN201450985U CN201450985U CN2009201033007U CN200920103300U CN201450985U CN 201450985 U CN201450985 U CN 201450985U CN 2009201033007 U CN2009201033007 U CN 2009201033007U CN 200920103300 U CN200920103300 U CN 200920103300U CN 201450985 U CN201450985 U CN 201450985U
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Abstract
The utility model provides a negative-pressure pipe-type pressure regulator of an infiltrating irrigation device and relates to the technical field of farmland watering. The pressure regulator is provided with a closed stand pipe; the upper part of the closed stand pipe is provided with a closed diaphragm plate used for dividing the closed stand pipe into an upper air chamber and a lower water chamber; the upper air chamber is communicated with the lower water chamber by a hole on the closed diaphragm plate and an inner stand pipe; a gap is left between the lower end of the inner stand pipe and the bottom part of the closed stand pipe; the top part of the lower water chamber and the bottom part of the closed stand pipe are respectively communicated with the top part and the lower part of a watering stand pipe with a closed watering plug by a pipe with a valve, a rear communicating pipe at the top part of the closed stand pipe is communicated with air, and the top part of the lower water chamber is communicated with a ventilation pressure-regulating pipe, so as to form a first-level pressure-regulating structure. The pressure regulator has the characteristics of simple structure, convenient and precise operation and use as well as steady and reliable working, and can automatically regulate the irrigation quantity and the irrigation speed according to the law of water requirement of plants, so as to realize scientific water supply.
Description
Technical field
The utility model relates to sprinkling technique field, farmland.
Background technology
China is the country that land resources and freshwater resources all quite lack, and in order to solve the agriculture irrigation water saving problem, the applicant had once applied for " negative pressure is oozed control slight irrigation device " patent, and publication number is CN2870448Y.This device is the low pressure of channelization, trace infiltrating irrigation equipment, characteristics are: utilized to have the ground atmospheric pressure naturally, negative pressure, the mutual balance of water colunm pressure and soil suction and five kinds of power of seepage controllor retention ability, cause air inlet to close and open just as one " automatic switch " is continuous, this switch can make water adding system work automatically on principle, can make the stable setting range that remains on of soil moisture content, help realizing according to the soil moisture automatic irrigation, but still exist pressure regulation inaccurate, inconvenient (needing in the hole, to adjust), job insecurity, problems such as soil moisture content control is inaccurate.
Summary of the invention
The purpose of this utility model provides a kind of negative-pressure pipeline type filtration irrigation device pressure regulator, has simple in structure, easy for operation, accurate, stable and reliable operation characteristics.
Main technical schemes of the present utility model is:
A kind of negative-pressure pipeline type filtration irrigation device pressure regulator, it is characterized in that: it has the closed vertical tube, the top of closed vertical tube is provided with the sealing diaphragm plate, the closed vertical tube is divided into upper chamber and lower header two parts, upper chamber is provided with the gap by the hole on the sealing diaphragm plate and interior vertical tube and lower header connection between the bottom of interior vertical tube lower end and closed vertical tube; The bottom of the top of lower header and closed vertical tube seals top that adds the water vertical tube and the bottom connection that adds the water plug with band respectively by the pipe of band valve, the back communicating pipe at the top of closed vertical tube and atmosphere are communicated with, the top of lower header is communicated with the ventilation surge pipe, constitutes 1 grade of pressure-adjusting type structure.
The top of described closed vertical tube is communicated with for good by valve and atmosphere.
The back of described 1 grade of pressure-adjusting type structure also can be in series with the 2nd grade, 3rd level or pressure-adjusting type structure more than 3 grades, thereby constitutes the multi-stag pressure adjusting structure.
Described pressure-adjusting type structure can with one or 2, or the pressure-adjusting type structure more than 2 is in parallel.
Good effect of the present utility model is: overcome the deficiency of prior art, had simple in structure, easy for operation, accurate, stable and reliable operation characteristics.Can make irrigation water remain on the most active soil layer scope of root system of plant, thereby reduce evaporation of soil table and deep percolation to greatest extent, water saving, energy-conservation, reduce labor intensity, can determine irrigation quantity and speed according to the plant law of needing the water, the realization science supplies water.
Be described further below in conjunction with embodiment and accompanying drawing, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is three grades of series-mode frame schematic diagrames of the present utility model.
Fig. 2 is three grades of parallel structural representations of the present utility model.
Among Fig. 1, Fig. 2, each label implication is: 1. closed vertical tube, 2. valve, 3. valve 4. adds the water vertical tube, 5. interior vertical tube, 6. sealing adds the water plug, 7. valve, 8. back communicating pipe, 9. valve, 10. upper chamber, 11. sealing diaphragm plates, 12. the gas outlet, 13. lower headers, 14. ventilation surge pipes, (15. negative-pressure pipeline type filtration irrigation device) tank, 151. (negative-pressure pipeline type filtration irrigation device) water circulating pump, 152. (negative-pressure pipeline type filtration irrigation devices) infiltration device.
Embodiment
See Fig. 1, this negative-pressure pipeline type filtration irrigation device pressure regulator, has closed vertical tube 1, the top of closed vertical tube 1 is provided with sealing diaphragm plate 11, closed vertical tube 1 is divided into upper chamber 10 and lower header 13 two parts, upper chamber 10 is provided with the gap by the hole on the sealing diaphragm plate 11 and interior vertical tube 5 and lower header 13 connections between the bottom of interior vertical tube 5 lower ends and closed vertical tube 1; The pipe of the bottom of the top of lower header 13 and closed vertical tube 1 by band valve 2,7 respectively and the upper and lower that adds water vertical tube 4 be communicated with, the top that adds water vertical tube 4 has sealing to add water plug 6, valve 3 is arranged at the bottom.The back communicating pipe 8 at the top of closed vertical tube 1 and atmosphere are communicated with, and the top of lower header 13 is communicated with ventilation surge pipe 14, constitutes 1 grade of pressure-adjusting type structure.
The top of closed vertical tube 1 can be communicated with atmosphere by valve 9.The back of 1 grade of pressure-adjusting type structure is in series with the 2nd grade, 3rd level pressure-adjusting type structure, thereby constitutes 3 grades of formula pressure adjusting structures.
See Fig. 2, wherein certain grade of pressure-adjusting type structure and one 2 pressure-adjusting type structures are in parallel.
This pressure regulator use course of work and points for attention are as follows:
(1), adds water.No matter irrigation device is in work or off working state, and valve-off 2,3,7 is closed, and filler pipe 4 and device are disconnected, and opens sealing and adds water plug 6, topped up with water in filler pipe 4.
(2), pressure regulation.Operation in the following order:
Under system's suction function, water in the interior vertical tube 5 is return close formula and is closed vertical tube 1, until the water in the interior vertical tube 5 is emptied completely, the words that system's negative pressure increases again, outside air will enter tank 15 by interior vertical tube 5, air inlet 12 and ventilation surge pipe 14 under atmospheric pressure and system's Negative Pressure Difference effect, the negative pressure value of system no longer descends.The vertical drop of the vertical drop of water level and tank 1 water level and ventilation surge pipe lower port is exactly that system wishes the negative pressure value controlled in interior vertical tube 5 lower port and the airtight vertical tube 1.Interior vertical tube 5 lower port are exactly the zero level of system, but the zero level of this moment rises to more than the soil surface, so the pressure regulator device has been realized zero level is set to ground the above object.
Negative pressure just can reach the purpose that reduces soil water content in the raising system.The way of raising system negative pressure is the water level that improves in the closed vertical tube 1, and vertical tube 5 lower port are to the interior water-head of closed vertical tube 1 in increasing.Method of operating with add water with: 1., valve 2 and 7 is closed the disconnection that is communicated with that makes filler pipe 4 and system, open to seal and add water plug 6; 2. filler pipe 4 is filled water, close encapsulation adds water plug 6 then, opens valve 7 earlier, makes filler pipe 4 and 1 pressure balance of closed vertical tube, slowly opens valve 2 again, the water level in the closed vertical tube 1 is raised to the height that needs gets final product.
Negative pressure can be increased soil moisture content in the reduction system, can reach by the water level that reduces closed vertical tube 1.1., valve-off 2 and 7 makes the disconnection that is communicated with of filler pipe 4 and system method of operating:, the sealing of opening filler pipe 4 adds water plug 6 and valve 3, with the water emptying in the filler pipe 4; 2., valve-off 3 and sealing add water plug 6 again, open valve 7 and make filler pipe 4 and 1 pressure balance of closed vertical tube, slowly open valve 2, the water in the closed vertical tube 1 is discharged in the filler pipe 4, the water level of closed vertical tube 1 reduces.
Pressure regulator can also use by serial or parallel connection. when series connection is used, the pressure control value of pressure regulators at different levels has accumulative action, can strengthen adjustable range to the irrigation system negative pressure. this when hope is controlled at soil moisture content low situation of great use. such as requiring the soil matrix gesture is controlled at-0.03MPa, if only use a pressure regulator, be made into greater than 3 meters with regard to the height that needs closed vertical tube 1, this is very inconvenient in actual applications. at 1 meter pressure regulator, can reach same effect by 3 the negative pressure adjustable ranges of connecting.
Use in parallel can increase the throughput of breather pipe.When the negative-pressure pipeline type irrigation rig is irrigated the larger area land area, need to use this connected mode.The big water consumption of irrigated area is just many, and required instant discharge is just big.In this case, because the restriction of breather pipe sectional area, the throughput of single pressure regulator may be just not enough, causes replenish air deficiency in system's negative pressure cavity, and influence is to the precision of system's negative pressure control.Being connected in parallel is equivalent to increase the air inlet pipe cross section, must increase ventilation capacity.Therefore under the situation that does not change the pressure controller dimensions, just can solve the not enough problem of throughput.
Claims (4)
1. negative-pressure pipeline type filtration irrigation device pressure regulator, it is characterized in that: it has closed vertical tube (1), the top of closed vertical tube (1) is provided with sealing diaphragm plate (11), closed vertical tube (1) is divided into upper chamber (10) and lower header (12) two parts, upper chamber (10) is provided with the gap by the hole on the sealing diaphragm plate (11) and interior vertical tube (5) and lower header (13) connection between the bottom of interior vertical tube (65) lower end and closed vertical tube (1); The bottom of the top of lower header (13) and closed vertical tube (1) seals top that adds water vertical tube (4) and the bottom connection that adds water plug (6) with band respectively by the pipe of band valve (2,7), the back communicating pipe (8) at the top of closed vertical tube (1) and atmosphere are communicated with, the top of lower header (13) is communicated with ventilation surge pipe (13), constitutes 1 grade of pressure-adjusting type structure.
2. negative-pressure pipeline type filtration irrigation device pressure regulator according to claim 1 is characterized in that the top of described closed vertical tube (1) is communicated with by valve (9) and atmosphere.
3. negative-pressure pipeline type filtration irrigation device pressure regulator according to claim 2, the back that it is characterized in that described 1 grade of pressure-adjusting type structure are in series with the 2nd grade, 3rd level or pressure-adjusting type structure more than 3 grades, thereby constitute the multi-stag pressure adjusting structure.
4. according to claim 1,2 or 3 described negative-pressure pipeline type filtration irrigation device pressure regulators, it is characterized in that described pressure-adjusting type structure and the pressure-adjusting type structure more than or 2 or 2 are in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201033007U CN201450985U (en) | 2009-06-17 | 2009-06-17 | Negative-pressure pipe-type pressure regulator of infiltrating irrigation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201033007U CN201450985U (en) | 2009-06-17 | 2009-06-17 | Negative-pressure pipe-type pressure regulator of infiltrating irrigation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201450985U true CN201450985U (en) | 2010-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201033007U Expired - Fee Related CN201450985U (en) | 2009-06-17 | 2009-06-17 | Negative-pressure pipe-type pressure regulator of infiltrating irrigation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201450985U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026948A (en) * | 2013-01-17 | 2013-04-10 | 中国农业大学 | Capillary pressure regulator |
| CN103026949A (en) * | 2013-01-17 | 2013-04-10 | 中国农业大学 | Capillary pressure regulator with stable pressure-regulating performance |
| CN109845623A (en) * | 2019-01-24 | 2019-06-07 | 高艳波 | A kind of adaptive infiltrating irrigation system of adjustable constant-pressure tide |
-
2009
- 2009-06-17 CN CN2009201033007U patent/CN201450985U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026948A (en) * | 2013-01-17 | 2013-04-10 | 中国农业大学 | Capillary pressure regulator |
| CN103026949A (en) * | 2013-01-17 | 2013-04-10 | 中国农业大学 | Capillary pressure regulator with stable pressure-regulating performance |
| CN109845623A (en) * | 2019-01-24 | 2019-06-07 | 高艳波 | A kind of adaptive infiltrating irrigation system of adjustable constant-pressure tide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120617 |