CN203289884U - Venturi fertilizer injector - Google Patents
Venturi fertilizer injector Download PDFInfo
- Publication number
- CN203289884U CN203289884U CN2013203539698U CN201320353969U CN203289884U CN 203289884 U CN203289884 U CN 203289884U CN 2013203539698 U CN2013203539698 U CN 2013203539698U CN 201320353969 U CN201320353969 U CN 201320353969U CN 203289884 U CN203289884 U CN 203289884U
- Authority
- CN
- China
- Prior art keywords
- diffuser
- section
- contraction section
- diameter
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Fertilizing (AREA)
Abstract
The utility model discloses a Venturi fertilizer injector and belongs to the field of agricultural irrigation equipment. A contraction section of the Venturi fertilizer injector is divided into a first contraction section and a second contraction section, the first contraction section is shorter than the second contraction section, and a contraction angle of the first contraction section is smaller than that of the second contraction section. An expansion section of the Venturi fertilizer injector is divided into a first expansion section and a second expansion section, the first expansion section is shorter than the second expansion section, and an expansion angle of the first expansion section is smaller than that of the second expansion section. A straight pipe entrance section is identical to a straight pipe exit section in diameter, and throat length is identical to a liquid fertilizer absorption hole in diameter. The structural sizes of the length of the first expansion section, the diameter ratio of the throat and the diameter of the liquid fertilizer absorption hole are of great importance to fertilizer absorption performance. The Venturi fertilizer injector compared with the products with the same structure home and abroad can improve fertilizer absorption flow by 30% to 60% and the specific value of the fertilizer absorption flow and the outlet flow by 35% to 62%, and fertigation uniformity and fertilizer injection efficiency of the spray and micro-irrigation system can be improved obviously.
Description
Technical field
The utility model relates to the agricultural irrigation apparatus field, is applicable to the sprinkler and micro-irrigation system of fertigation integral application.
Background technology
The fertigation integrated technique have water saving, joint fertile, save land, high yield, high-quality, the plurality of advantages such as efficient, ecological, it combines the liquid manure supply by the pressurization irrigation system by irrigation, accurate Controlled irrigation amount, fertilizing amount and irrigation and fertilization time, both can realize the intensive utilization of liquid manure resource, maximization and best in qualityization of crop yield, also can realize the minimum contamination to environment.Since 2000 promote, related at present more than 20 provinces, cities and autonomous regions in the whole nation, popularizing area surpasses 1,530,000 hm
2
The fertigation technology will be injected with fertilizer the pressure irrigation pipe network, must rely on special-purpose fertilizing equipment, so the type of fertigation equipment has determined the fertigation uniformity and the efficiency of applying fertilizer to a great extent with performance.At present, in the sprinkler and micro-irrigation system, fertigation equipment commonly used has differential fertilizer spreading tank, Development of Venturi Fertilizer Applicator, hydro powered ratio fertilizing pump, the fertile pump of electronic notes etc.According to the difference of control mode, fertigation can be divided into ratio fertilizer and quantitative fertilizer.Solution injection flow and the irrigation water flow of ratio fertilizer are proportional, and in the liquid manure mixed liquor, nutrients ratio keeps constant, easily realize accurately applying fertilizer.Wherein Development of Venturi Fertilizer Applicator with simple in structure, low price, easy and simple to handle, need not outer power, and can realize the advantage such as accurately fertilising, apply very extensive in all kinds of greenhouses.Present domestic Development of Venturi Fertilizer Applicator of less types, specification is single, lacks the specification product that is fit to large and medium-sized sprinkler and micro-irrigation system; The home products size is imitated external product mostly, imports and exports pressure drop when normal suction is fertile larger, inhales fertile flow less, and hydraulic performance and fertilizer-sucting performance are undesirable; The performance parameter that producer provides is imperfection again, and Selection and Design is science not.On the whole, domestic Development of Venturi Fertilizer Applicator shortage science design, service behaviour is undesirable, needs further exploitation perfect.
The utility model content
For the problems referred to above, it is gas thread 2 that the purpose of this utility model is to provide a kind of and irrigation conduit size for connection " Development of Venturi Fertilizer Applicator, it has good fertilizer-sucting performance, can obviously improve fertigation uniformity and the fertilising efficiency of sprinkler and micro-irrigation system.
For achieving the above object, a kind of Development of Venturi Fertilizer Applicator is provided, its structure is: along water (flow) direction, comprise import straight length, contraction section, throat, diffuser and outlet straight length, solution is sucked by the solution suction inlet, it is characterized in that, contraction section is divided into two sections of contraction section I and contraction section II, and the length of contraction section I is less than the length of contraction section II, and the contraction angle of contraction section I is less than the contraction angle of contraction section II; Diffuser is divided into diffuser I and diffuser II, and the length of diffuser I is less than the length of diffuser II, and the diffusion angle of diffuser I is less than the diffusion angle of diffuser II.
In above-mentioned Development of Venturi Fertilizer Applicator, preferred scheme for three important size ranges of its inner flow passage structure is: diffuser I length L
2=35～45mm, throat diameter be than λ=1.2～1.4, solution intet diameter d
3=15～17mm, described throat diameter refers to diffuser minimum diameter d than λ
t2With the laryngeal entrance diameter d
t1The ratio.The equal diameters of import straight length and outlet straight length, throat length equates with the solution intet diameter.
In above-mentioned Development of Venturi Fertilizer Applicator, diffuser I diffusion angle beta=6 °～8 °, the contraction section I is shunk angle [alpha]=6 °～8 °, laryngeal entrance diameter d
t1=15～17mm, contraction section I length L
1=30～40mm.
In above-mentioned Development of Venturi Fertilizer Applicator, the optimal value of seven critical sizes of its inner flow passage structure is: the laryngeal entrance diameter d
t1=16mm, solution intet diameter d
3=16mm, throat diameter are than λ=1.25, contraction section I length L
1=35mm, contraction section I shrink angle [alpha]=7 °, diffuser I length L
2=40mm, diffuser I diffusion angle beta=7 °.
The utility model improves 30%～60% than the fertile flow of the suction of domestic and international homogeneous structure product, and the ratio of inhaling fertile flow and rate of discharge improves 35%～62%.
Description of drawings
Fig. 1 is the utility model general structure schematic diagram;
Fig. 2 is 7 critical size structural representations that the utility model relates to.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the Development of Venturi Fertilizer Applicator inner flow passage structure that the utility model relates to comprises along water (flow) direction: import straight length 1, contraction section II 2, contraction section I 3, throat 4, diffuser I 5, diffuser II 6 and outlet straight length 7, solution is sucked by solution suction inlet 8." gas thread is connected the import straight length, and solution suction inlet place is provided with backflow preventing structure, with the fertile plastic tube of suction, is connected, and inhales the fertile plastic tube other end and is connected with strainer valve by 2 with irrigation conduit with being connected straight length.Its operation principle is that the working water with certain pressure enters Development of Venturi Fertilizer Applicator through straight length, along with diminishing gradually of contraction section diameter, working water speed increases gradually, reach maximum to laryngeal entrance place flow velocity, working water is at a high speed taken away near the air throat, form negative pressure in throat, after negative pressure reaches certain value, the solution of having prepared just enters throat by inhaling fertile plastic tube, working water and solution enter diffuser jointly after mix the throat position, finally by the outlet of Development of Venturi Fertilizer Applicator, enter irrigation conduit.
Wherein, contraction section is divided into two sections of contraction section I and contraction section II, and the length of contraction section I is less than the length of contraction section II, and the contraction angle of contraction section I is less than the contraction angle of contraction section II.Diffuser is divided into diffuser I and diffuser II, and the length of diffuser I is less than the length of diffuser II, and the diffusion angle of diffuser I is less than the diffusion angle of diffuser II.The equal diameters of working water import, mixing material outlet straight length, throat length equates with the solution intet diameter.The physical dimension of contraction section I 3, throat 4, diffuser I 5 is the most remarkable on the fertilizer-sucting performance impact, and 7 critical feature size that the utility model relates to are the size of these parts.
As shown in Figure 2, the utility model is chosen 7 critical sizes of contraction section I 3, throat 4, diffuser I 5 and solution suction, each size is determined the varying level value, adopt Orthogonal Experiment and Design structure different tests scheme, utilize the fertilizer-sucting performance of each testing program of CFD technological prediction, determine diffuser I length L
2, (the throat diameter ratio refers to diffuser minimum diameter d to throat diameter than λ
t2With the laryngeal entrance diameter d
t1Ratio), solution intet diameter d
3Three sizes have the greatest impact to fertilizer-sucting performance, and its optimum span is: diffuser I length L
2=35～45mm, throat diameter be than λ=1.2～1.4, solution intet diameter d
3=15～17mm.The span of 7 critical sizes of fertilizer-sucting performance optimum is: diffuser I length L
2=35～45mm, throat diameter be than λ=1.2～1.4, solution intet diameter d
3=15～17mm, diffuser I diffusion angle beta=6 °～8 °, the contraction section I is shunk angle [alpha]=6 °～8 °, laryngeal entrance diameter d
t1=15～17mm, contraction section I length L
1=30～40mm.The optimal value of 7 critical sizes of fertilizer-sucting performance optimum is: the laryngeal entrance diameter d
t1=16mm, solution intet diameter d
3=16mm, throat diameter are than λ=1.25, contraction section I length L
1=35mm, contraction section I shrink angle [alpha]=7 °, diffuser I length L
2=40mm, diffuser I diffusion angle beta=7 °.Inhale fertile flow with the sample that the optimal value of seven sizes is processed than the maximum of domestic and international homogeneous structure product and improve 30%～60%, the ratio of inhaling fertile flow and rate of discharge improves 35%～62%.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. Development of Venturi Fertilizer Applicator, its structure is: along water (flow) direction, comprise the import straight length, contraction section, throat, diffuser and outlet straight length, solution is sucked by the solution suction inlet, it is characterized in that, described contraction section is divided into two sections of contraction section I and contraction section II, and the length of contraction section I is less than the length of contraction section II, and the contraction angle of contraction section I is less than the contraction angle of contraction section II; Described diffuser is divided into diffuser I and diffuser II, and the length of diffuser I is less than the length of diffuser II, and the diffusion angle of diffuser I is less than the diffusion angle of diffuser II.
2. Development of Venturi Fertilizer Applicator as claimed in claim 1, is characterized in that, diffuser I length L
2=35～45mm, throat diameter be than λ=1.2～1.4, solution intet diameter d
3=15～17mm, described throat diameter refers to diffuser minimum diameter d than λ
t2With the laryngeal entrance diameter d
t1The ratio.
3. Development of Venturi Fertilizer Applicator as claimed in claim 2 is characterized in that: angle [alpha]=6 °～8 °, laryngeal entrance diameter d are shunk in diffuser I diffusion angle beta=6 °～8 °, contraction section I
t1=15～17mm, contraction section I length L
1=30～40mm.
4., as claim 1 or 2 or 3 described Development of Venturi Fertilizer Applicator, it is characterized in that: the laryngeal entrance diameter d
t1=16mm, solution intet diameter d
3=16mm, throat diameter are than λ=1.25, contraction section I length L
1=35mm, contraction section I shrink angle [alpha]=7 °, diffuser I length L
2=40mm, diffuser I diffusion angle beta=7 °, described throat diameter refers to diffuser minimum diameter d than λ
t2With the laryngeal entrance diameter d
t1The ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203539698U CN203289884U (en) | 2013-06-19 | 2013-06-19 | Venturi fertilizer injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203539698U CN203289884U (en) | 2013-06-19 | 2013-06-19 | Venturi fertilizer injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289884U true CN203289884U (en) | 2013-11-20 |
Family
ID=49565938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203539698U Expired - Lifetime CN203289884U (en) | 2013-06-19 | 2013-06-19 | Venturi fertilizer injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289884U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106636216A (en) * | 2016-10-18 | 2017-05-10 | 山东省农业科学院农业资源与环境研究所 | Acidification control method for anaerobic fermentation of organic refuse |
| CN108337981A (en) * | 2018-03-14 | 2018-07-31 | 中国水利水电科学研究院 | Development of Venturi Fertilizer Applicator and fertilizing equipment |
| CN113748817A (en) * | 2021-09-15 | 2021-12-07 | 塔里木大学 | Static fertilizer pressure boost irrigation equipment that mixes of many solution pipelines |
| CN115650474A (en) * | 2022-09-28 | 2023-01-31 | 西北农林科技大学 | Low-energy-consumption magnetization processing device and method for relieving blockage of emitter of drip irrigation system |
-
2013
- 2013-06-19 CN CN2013203539698U patent/CN203289884U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106636216A (en) * | 2016-10-18 | 2017-05-10 | 山东省农业科学院农业资源与环境研究所 | Acidification control method for anaerobic fermentation of organic refuse |
| CN108337981A (en) * | 2018-03-14 | 2018-07-31 | 中国水利水电科学研究院 | Development of Venturi Fertilizer Applicator and fertilizing equipment |
| CN108337981B (en) * | 2018-03-14 | 2023-09-12 | 中国水利水电科学研究院 | Venturi fertilizer applicator and fertilizer application equipment |
| CN113748817A (en) * | 2021-09-15 | 2021-12-07 | 塔里木大学 | Static fertilizer pressure boost irrigation equipment that mixes of many solution pipelines |
| CN113748817B (en) * | 2021-09-15 | 2023-03-14 | 塔里木大学 | Static fertilizer-mixing pressure-boosting irrigation device with multiple solution pipelines |
| CN115650474A (en) * | 2022-09-28 | 2023-01-31 | 西北农林科技大学 | Low-energy-consumption magnetization processing device and method for relieving blockage of emitter of drip irrigation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203289885U (en) | Venturi fertilizer injector | |
| CN2887026Y (en) | Piston type hydro-powered fertilizer applicator | |
| CN205030111U (en) | Gardens irrigation and fertilization system | |
| CN203912547U (en) | A kind of device that Different Crop in booth is carried out respectively to independent fertilising | |
| CN105981518A (en) | Banana plantation automatic fertilizing apparatus | |
| CN205454580U (en) | High -efficient venturi | |
| CN203289884U (en) | Venturi fertilizer injector | |
| CN201383931Y (en) | Precise water and fertilizer integrated machine | |
| CN203840760U (en) | Fertilizer proportioning-applying system for greenhouse facilities | |
| CN110122028A (en) | A kind of hydrodynamic force precise proportions fertilizer applicator | |
| CN103636344A (en) | Automatic irrigation equipment for garden greening | |
| CN204741786U (en) | Horticulture is planted with automatic liquid manure integration machine | |
| CN204014486U (en) | A kind of irrigation conduit joint of automatic dilution punching fertilising | |
| CN210053857U (en) | Simple and easy liquid manure integration filling device | |
| CN205794067U (en) | A kind of liquid manure concentration control apparatus | |
| CN203194142U (en) | Irrigation system | |
| CN201911129U (en) | Field micro-sprinkling hose irrigation system | |
| CN204539838U (en) | Land for growing field crops micro spray irrigation external force fertilizer distributor | |
| CN211353090U (en) | Bypass type water and fertilizer integrated machine for injecting fertilizer into branch pipeline | |
| CN201986484U (en) | Sloping field irrigation system | |
| CN212544607U (en) | Liquid manure integration fertigation device | |
| CN104641777A (en) | Field biogas slurry fertilization integrated irrigating system | |
| CN204598662U (en) | Facility melon dish micro spray irrigation device | |
| CN1199553C (en) | Water driven quantitative fertilizer spreader | |
| CN105277382A (en) | Water and fertilizer integrated fertilizing equipment multifunctional test stand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |