CN202112120U - Micro-irrigation bidirectional flow pressure regulator - Google Patents
Micro-irrigation bidirectional flow pressure regulator Download PDFInfo
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- CN202112120U CN202112120U CN2011201243962U CN201120124396U CN202112120U CN 202112120 U CN202112120 U CN 202112120U CN 2011201243962 U CN2011201243962 U CN 2011201243962U CN 201120124396 U CN201120124396 U CN 201120124396U CN 202112120 U CN202112120 U CN 202112120U
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Abstract
The utility model discloses a micro-irrigation bidirectional flow pressure regulator, comprising a casing. With a cross section matched with the casing, a baffle plate is mounted in the casing and is provided with a water flowing hole at the center. A left water-flowing side wall and a right water-flowing side wall are fixed on the rear end face of the baffle plate. At least one group of water flowing pieces and one water blocking piece are successively arranged between the left and right water-flowing side walls. Each group of water flowing pieces are composed of an upper water-flowing baffle plate and a lower water-flowing baffle plate, which are obliquely disposed at two sides of the central axis of the casing in an up-down symmetric manner. The upper and lower water-flowing baffle plates are spaced apart by a certain distance, and form an opening therebetween facing the baffle plate. The water blocking piece is a V-shaped folded plate. The micro-irrigation bidirectional flow pressure regulator of the utility model is simple in structure and good in pressure-reducing effect, and solves the problems of easy failure, short service lifetime and high cost in the prior art.
Description
Technical field
The utility model belongs to water conservancy slight irrigation equipment technical field, is specifically related to a kind of slight irrigation bidirectional flow pressure regulator.
Background technology
Irrigation system is made up of water source, head pivot, pipe network and irrigator.Head pivot comprises pressure pump, filter and fertilizer apparatus, and pipe network is made up of main, arm and hollow billet.Arm and hollow billet are formed the field pipe network; Irrigator is installed on the hollow billet.According to the irrigator form that adopts, slight irrigation can further be divided into drip irrigation, microspray irrigation and tubelet effluent irrigation etc. again.
Because landform drop, the pipe network loss of flood peak, arm rotation flow and multiple factor such as pour water at random, slight irrigation ductwork pressure luffing is bigger, and is general through at arm and hollow billet import setting pressure adjuster (also claiming flow regulator), eliminates unnecessary pressure.At hollow billet import department setting pressure adjuster, the pressure between can balanced slight irrigation field each irrigator of pipe network improves the uniformity of irrigation water appilcation of field pipe network; At arm import setting pressure adjuster, can reduce the field ductwork pressure; Pressure regulator downstream arm and hollow billet just can use thin-wall pipes, reduce the pipe network investment; The setting pressure adjuster can reduce ductwork pressure, prevents that pipe explosion accident from taking place.
The slight irrigation voltage-regulating technique can be divided into following several types both at home and abroad:
(1) slight irrigation pressure regulator
The slight irrigation pressure regulator is also claimed the slight irrigation flow regulator.Mostly that adopts in the slight irrigation engineering at present is the direct-acting type pressure adjuster, and the pressure regulator of this type through the elastomer in the adjuster, is regulated the size of the runner cross-section of river, makes outlet pressure keep a constant relatively regulator.
Patent name is that the disclosed pressure regulator of " pressure regulator is used in water-saving irrigation " (patent No. is ZL00205555.4, and open day is on November 29th, 2000, and publication number is CN2407577) is when work; Press water gets into from import, flows out through valve core case, spool, gets into downstream line; When import hydraulic pressure increases; Downstream pressure water reacts on spool end, and compresses spring promotion spool and move, and makes the cross-section of river at valve core case and spool place reduce; Local head loss increases, thereby reduces outlet hydraulic pressure.The characteristics of this pressure regulator are upstream pressures when bigger variation is arranged, and downstream pressure remains unchanged basically.This type regulated the pressure regulator of the cross-section of river through spring stress, and be generally bigger through flow, is used for slight irrigation arm import department more.People such as Tian Jinxia and Gong Shihong (sees Tian Jinxia, Gong Shihong, Li Guangyong; Wang Jiandong; Slight irrigation pressure regulator parameter is to the research [J] of outlet set pressure influence. EI, 2005,12) and Zang Lihua, Niu Wenquan and Wu Pu top grade people (see exploitation of drip irrigation system arm pressure regulator and experimental study [D]. Xibei Univ. of Agricultural & Forest Science & Technology; 2006) this slight irrigation pressure regulator is improved, but its basic functional principle is identical.The slight irrigation pressure regulator flow of this type is at 1000～3000L/h, inlet pressure 0.3～0.7MPa, and about outlet pressure 0.15MPa, the fluidised form index is between 0.1-0.2.
Patent name is that " compensation slight irrigation flow straightener " (patent No. is ZL97214517.6; Open day is on October 24th, 1998; Publication number is CN2293938) the compensation slight irrigation flow regulator of disclosed domestic first generation hollow billet level, regulate flow through elastic film change cross-section of river size and shape.Sheet rubber when service pressure in the flow regulator is in normal operating conditions, and the flow that passes through is desired flow; When water pressure increased, hydraulic pressure forced the sheet rubber distortion, and the cross-section of river diminishes, and has limited current and has passed through, and it is constant that the flow maintenance is stablized, and had guaranteed the uniformity of the stable and irrigator flow of system's pipe network flows at different levels.This type pressure regulator principle is similar, mainly is to regulate flow through elastic film change cross-section of river size and shape, is installed in hollow billet import department in the use, regulates the hollow billet inlet pressure.Flow 100～the 200L/h of this hollow billet level slight irrigation flow regulator, inlet pressure 0.2～0.4MPa, outlet pressure 0.05～0.10MPa, the fluidised form index index of discharge about 0.1.
External pressure regulator product is mainly produced by companies such as RAINBIRD, NATEFIM and NELSON; Preset (import) pressure limit 0.04-0.45MPa; They have formed series of products; Can satisfy different flow and pressure regulation requirement, but basic functional principle is also all similar with two types of pressure regulators of top introduction.External product is divided by flow has low discharge and two kinds of specifications of high flow capacity, the preset pressure that the high flow capacity correspondence is bigger, and price is expensive.
The operation principle of these two types of pressure regulators all is to change cross-section of river size through spring or flexible sheet to regulate pressure, and under the big situation of inlet pressure luffing, outlet pressure and flow luffing are very little, and voltage regulation result is remarkable.Because in the adjuster spring and flexible sheet are arranged, cost is higher; Conditions for equipment use is relatively poor between sewage farming, and spring and flexible sheet be easy ageing also, causes equipment failure, and shorten service life.
(2) current stabilization threeway
The current stabilization threeway (is seen Liu Huanfang, Li Jiajie, Wang Jun etc.The development of hollow billet current stabilization threeway and discussion [J].Water-saving irrigation, 2003,2) relatively simple for structure, it is by housing, threeway, sealing shroud, and core print seat, M type flexible sheet are formed, and wherein constitute flow straightener by core print seat and M type flexible sheet.When working-pressure head increased, the downwarping of M type flexible sheet reduced discharge section area, and the pressure loss increases, and flow velocity increases, and flow remains unchanged; Otherwise when working-pressure head reduced, then discharge section area increased, and the pressure loss reduces, and flow velocity reduces, and flow then remains unchanged, thereby guaranteed the stable of capillary pressure head and flow.The form of current stabilization threeway water inlet is a spigot-and-socket, is convenient to be connected with arm, and there is the spinning lid in the exit in order to the irrigate band that is tightly connected.Operation principle is similar with the pressure regulator that has flexible sheet in fact, only exactly threeway and pressure regulator has been integrated.
(3) surge pipe
Surge pipe (is seen the farming system of appointing national minority hereditary headmen in the Yuan, Ming and Qing Dynasties of Ministry of Water Resources.Slight irrigation engineering [M].Beijing: Chinese Water Conservancy water power publishing house, 1998) claiming water resistance pipe or energy dissipating pipe again, is that in hollow billet import department one section diameter to be installed be 4 millimeters PEF plastic tube.Its operation principle is to utilize the tubule of certain-length to produce the unnecessary pressure that frictional head loss is eliminated hollow billet import department; Advantage is that cost is low, but because the loss of flood peak of arm and landform change, arm changes greatly along stroke pressure; Change along stroke pressure for adapting to this arm; Each hollow billet import department surge pipe length of arm is different, has strengthened the workload of design and installation, has seldom used now.
To sum up; The operation principle of the main slight irrigation pressure regulator that uses is both at home and abroad at present: through the device of spring or flexible sheet is installed in adjuster inside, change the size of the cross-section of river, increase local head loss; Eliminate the unnecessary pressure (energy) of pipeline, realize the purpose of pressure regulation.This type slight irrigation pressure regulator energy dissipating efficient is higher, but also has a series of problems: (a) on the high side, and influence in the slight irrigation pressure regulator and apply on a large scale; (b) complex structure, the farmland environment for use is relatively poor, in the use, slight irrigation pressure regulator long term exposure in the open air, spring fatigue in the pressure regulator or flexible sheet are aging, can cause its pressure regulating performance to reduce, even lose efficacy reduction of service life.
Summary of the invention
The purpose of the utility model provides a kind of slight irrigation bidirectional flow pressure regulator, and it is simple in structure, and voltage regulation result is good, has solved the easy inefficacy that prior art exists, and service life is short, and the high problem of cost.
The technical scheme that the utility model adopted is a kind of slight irrigation bidirectional flow pressure regulator; Comprise the housing that can be connected with outside water pipe, baffle plate is installed in the housing, the shape of baffle plate matches with the cross section of housing; And have water hole in its centre; On the rear end face of baffle plate and the bilateral symmetry that is positioned at water hole be fixed with a left side and cross waterside wall and the right waterside wall of crossing, cross the waterside wall on a left side and right the mistake between the wall of waterside was disposed with water spare and water deflector, cross water spare by symmetry, be provided with and form going up the water baffle plate and descending the water baffle plate to constitute of V-shape at interval; Water deflector is the capable flap of V, crosses the direction towards baffle plate of dehiscing to hold all of water spare and water deflector.
The line of symmetry of crossing water spare and water deflector is coaxial with the center line of housing.
Water hole is rectangular opening or circular hole.
Cross going up the water baffle plate and descending the angle a that forms between the water baffle plate of water spare
1Angle a with water deflector
2Equate.
Housing is a cylinder-like structure.
The utility model slight irrigation bidirectional flow pressure regulator is crossed waterside wall and the right waterside wall of crossing through on the rear end face of baffle plate, being fixed with a left side, and crosses the waterside wall on a left side and right the mistake between the wall of waterside was provided with water spare and water deflector; Like this; Through behind the water hole of baffle plate, can form forward and reverse bimodal current, the mutual blending of the current of both direction at current; Can eliminate unnecessary water flow pressure, realize pressure controlled function.The utility model provides slight irrigation pressure controlled a kind of new approaches, and it is simple in structure, and cost is low, and compares with the pressure regulator of the main use flexible member of prior art, its long service life, and pressure regulation is effective, function-stable.
Description of drawings
Fig. 1 is the structural representation of the utility model slight irrigation bidirectional flow pressure regulator;
Fig. 2 is the vertical view of Fig. 1.
Wherein, 1. housing, 2. baffle plate, 3. water hole, 4. the waterside wall is crossed on a left side, and the 5. right waterside wall of crossing is crossed the water baffle plate on 6., 7. descends the water baffle plate, 8. water deflector.
Embodiment
As depicted in figs. 1 and 2, the utility model slight irrigation bidirectional flow pressure regulator comprises the housing 1 of cylinder-like structure; Baffle plate 2 is installed in the housing 1; The shape of baffle plate 2 matches with the cross section of housing 1, and the center of baffle plate 2 has water hole 3, and water hole 3 is a rectangular opening.The shape of water hole 3 can also be circular or other shapes.Be fixed with a left side that is used to install water spare and water deflector 8 on the rear end face of baffle plate 2 and cross waterside wall 4 and the right waterside wall 5 of crossing, a left side is crossed waterside wall 4 and is crossed the both sides that waterside wall 5 is symmetricly set on water hole 3 with right.Cross waterside wall 4 and right water spare and the water deflector 8 of being disposed with between the waterside wall 5 excessively on a left side.The utility model can also cross waterside wall 4 as required on a left side and right being disposed with between the waterside wall 5 excessively organized water spare and a plurality of water deflector 8 more.Cross waterside wall 4 and right water spare and the water deflector 8 of being disposed with between the waterside wall 5 excessively on a left side; Cross water spare and be provided with and form going up water baffle plate 6 and descending water baffle plate 7 to constitute of V-shape by symmetry, interval; Water deflector 8 is the capable flap of V, crosses the direction towards baffle plate 2 of dehiscing to hold all of water spare and water deflector 8.The line of symmetry of crossing water spare and water deflector 8 is coaxial with the center line of housing 1.Cross going up water baffle plate 6 and descending the angle a that forms between the water baffle plate 7 of water spare
1Angle a with water deflector 8
2Equate.
The utility model in use; The two ends of housing 1 are connected with outside inlet channel, outside outlet conduit respectively, and current are after getting into housing 1, behind the water hole 3 on the baffle plate 2 of flowing through; Part water continues to flow forward from the above and below of crossing water spare; Another part current are by crossing going up water baffle plate 6 and descending the space between the water baffle plate 7 to flow through of water spare, and through water deflector 8 stop from cross the space between water baffle plate 6 and the water deflector 8 and descended water plate 7 and water deflector 8 between the space mobile to the direction of baffle plate 2, the formation reverse flow; And with the mutual blending of forward current of the above and below of crossing water spare; Current are slowed down, and energy attenuating is to reach the purpose that pressure reduces.
The utility model is installed in slight irrigation arm and hollow billet import department, can improve the irrigation system irrigation uniformity, the investment of reduction system, safeguards system safety.
Claims (5)
1. slight irrigation bidirectional flow pressure regulator; It is characterized in that; Comprise the housing (1) that can be connected with outside water pipe, baffle plate (2) is installed in the said housing (1), the shape of said baffle plate (2) matches with the cross section of said housing (1); And have water hole (3) at the center of said baffle plate (2); On the rear end face of said baffle plate (2) and the bilateral symmetry that is positioned at said water hole (3) be fixed with a left side and cross waterside wall (4) and the right waterside wall (5) of crossing, cross waterside wall (4) on a said left side and be disposed with water spare and water deflector (8) with right the mistake between the waterside wall (5), the said water spare of crossing is by symmetry, interval setting and form going up water baffle plate (6) and descending water baffle plate (7) formation of V-shape; Said water deflector (8) is the capable flap of V, the said direction towards said baffle plate (2) of dehiscing to hold all of crossing water spare and water deflector (8).
2. according to the described slight irrigation bidirectional flow of claim 1 pressure regulator, it is characterized in that the line of symmetry of said water spare excessively and water deflector (8) is coaxial with the center line of said housing (1).
3. according to the described slight irrigation bidirectional flow of claim 1 pressure regulator, it is characterized in that said water hole (3) is rectangular opening or circular hole.
4. according to the described slight irrigation bidirectional flow of claim 1 pressure regulator, it is characterized in that, saidly cross going up water baffle plate (6) and descending the angle a of formation between the water baffle plate (7) of water spare
1Angle a with said water deflector (8)
2Equate.
5. according to the described slight irrigation bidirectional flow of claim 1 pressure regulator, it is characterized in that said housing (1) is a cylinder-like structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201243962U CN202112120U (en) | 2011-04-25 | 2011-04-25 | Micro-irrigation bidirectional flow pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201243962U CN202112120U (en) | 2011-04-25 | 2011-04-25 | Micro-irrigation bidirectional flow pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202112120U true CN202112120U (en) | 2012-01-18 |
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ID=45453229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201243962U Expired - Fee Related CN202112120U (en) | 2011-04-25 | 2011-04-25 | Micro-irrigation bidirectional flow pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202112120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109247217A (en) * | 2018-10-22 | 2019-01-22 | 新疆泓科节水设备制造有限公司 | Slight irrigation Zhi Guanyong pressure adapter |
| CN110140639A (en) * | 2019-06-05 | 2019-08-20 | 广州市淞滨工程技术有限公司 | A kind of protection type drip irrigation equipment with pressure adjusting function |
-
2011
- 2011-04-25 CN CN2011201243962U patent/CN202112120U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109247217A (en) * | 2018-10-22 | 2019-01-22 | 新疆泓科节水设备制造有限公司 | Slight irrigation Zhi Guanyong pressure adapter |
| CN110140639A (en) * | 2019-06-05 | 2019-08-20 | 广州市淞滨工程技术有限公司 | A kind of protection type drip irrigation equipment with pressure adjusting function |
| CN110140639B (en) * | 2019-06-05 | 2021-08-06 | 李文华 | Protection type drip irrigation equipment with pressure regulation function |
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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: 20120118 Termination date: 20140425 |