CN103438773B - A kind of method determining position of full-jet-flow nozzle wall attachment point - Google Patents
A kind of method determining position of full-jet-flow nozzle wall attachment point Download PDFInfo
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- CN103438773B CN103438773B CN201310359341.3A CN201310359341A CN103438773B CN 103438773 B CN103438773 B CN 103438773B CN 201310359341 A CN201310359341 A CN 201310359341A CN 103438773 B CN103438773 B CN 103438773B
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- fluidics sprinkler
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- nozzle
- full
- attachment point
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- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 5
- 238000011160 research Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of method determining position of full-jet-flow nozzle wall attachment point.The material of the fluidics sprinkler model machine first selected is the transparent organic glass that can observe internal flow situation, high scale scale is pasted in the outside of fluidics sprinkler, fluidics sprinkler is made to remain on the state of steady operation, disconnect the connection of conduit and signal nozzle, keep conduit and the connection entering water nozzle, the entrance of conduit is blocked with finger, observe the internal flow situation of fluidics sprinkler, read the distance <i>s</iGreatT.Gr eaT.GT of power stream topmost portion apart from starting point, read the distance <i>t</iGreatT.Gr eaT.GT of power stream lowermost part apart from starting point simultaneously.Calculate the distance of position apart from basic circle hole exits that <i>h</iGreatT.Gr eaT.GT=(<i>s</iGreatT.Gr eaT.GT+<i>t</iGr eatT.GreaT.GT)/2 is full-jet-flow nozzle wall attachment point under setting working pressure.By technical method of the present invention, the particular location of the full-jet-flow nozzle wall attachment point under certain pressure can be determined, thus be that the size of the rotary driving force of research fluidics sprinkler and the concrete structure design of fluidics sprinkler provide foundation.
Description
Technical field
The present invention relates to the method determining Inner Flow for Complete Fluidic Sprinkler Using, especially a kind of method determining position of full-jet-flow nozzle wall attachment point.
Background technology
Fluidics sprinkler is a kind of novel sprinkling irrigation equipment, and its interior flow field comprises direct projection and attached wall two states, and first all have air to fill in the cavity of the fluidics sprinkler left and right sides, left and right sides pressure is equal, power stream direct projection, and shower nozzle is static; Then made do not have air to fill in the right side cavity of fluidics sprinkler by the mode of intercept signal water, left side pressure is greater than right side, and power stream is attached wall to the right, and the water jet propulsion shower nozzle after attached wall completes rotary motion.
For fluidics sprinkler, attached wall point position determines the size of the rotary driving force that it obtains, determine it whether can overcome the frictional resistance that is subject to and complete rotary work, and directly have influence on the design whether reasonably important indicator of fluidics sprinkler physical dimension.Mainly take the hypothesis of series in current research, rely on theoretical analysis and numerical simulation to calculate the position of full-jet-flow nozzle wall attachment point, designed by the physical dimension of experience to fluidics sprinkler, whether rotary work is completed to shower nozzle and observes.Thus accurately cannot know the position of the concrete attached wall point of fluidics sprinkler, and most optimally cannot design the physical dimension of fluidics sprinkler.If when some in particular cases causes fluidics sprinkler can not complete rotary work, just can not analyze it and whether cause due to the reason of attached wall point position, thus effectively cannot solve this problem in science.
As mentioned above, in the design process, fluidics sprinkler occurs when can not complete rotary work, effectively solves with regard to the means not desorbing wall point position by science.Owing to not knowing the position of full-jet-flow nozzle wall attachment point, this also may become restriction this kind of Novel spraying and fill with one of key factor of equipment Development.Therefore, the present invention proposes a kind of measuring method of position of full-jet-flow nozzle wall attachment point to solve the problem, tool has very important significance.
Through retrieval, that is also correlated with at present declares patent.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method determining position of full-jet-flow nozzle wall attachment point, thus provides parameter foundation for the physical dimension of optimal design fluidics sprinkler.
The technical scheme that the present invention takes is: a kind of method determining position of full-jet-flow nozzle wall attachment point, comprises the following steps:
A () first, determines experiment fluidics sprinkler model machine; The material of the fluidics sprinkler model machine selected is the transparent organic glass that can observe internal flow situation, high scale scale (3) is pasted in the outside of fluidics sprinkler, the regular shape of fluidics sprinkler model machine is smooth, thus ensures that fluidics sprinkler high scale scale is of a size of equidistant distribution.The leading zero's of described graduated scale is the exit position place in basic circle hole.
(b) utilize conduit by the signal nozzle of fluidics sprinkler with enter water nozzle and link together, the working pressure of setting shower nozzle, described signal nozzle and described enter the position of water nozzle and described graduated scale immobilize all the time.
C () starts to measure test figure experiment; Disconnect the connection of conduit and signal nozzle, keep conduit and the connection entering water nozzle, the entrance of conduit is blocked with finger, make there is no filling into of air into water nozzle place, on the left of fluidics sprinkler, pressure is greater than right side, power stream is attached wall to the right, observes the internal flow situation of fluidics sprinkler, reads the distance of power stream topmost portion apart from the leading zero's of described graduated scale respectively
swith the distance of power stream lowermost part apart from the leading zero's of described graduated scale
t.
D () calculates the distance of power stream topmost portion apart from the leading zero's of described graduated scale
swith the distance of power stream lowermost part apart from the leading zero's of described graduated scale
tmean value, obtain
h=(
s+
t)/2 are the distance of position apart from the leading zero's of described graduated scale of full-jet-flow nozzle wall attachment point under setting working pressure, thus also just determine the position coordinates of full-jet-flow nozzle wall attachment point.
in said method,the situation that when considering that work just starts, the intercepting of signal current may be stable not to the position influence of attached wall point, therefore under shower nozzle setting working pressure, steady operation starts to carry out experimental implementation after 10 minutes again.
Technique effect of the present invention is: by technical method of the present invention, the particular location of the full-jet-flow nozzle wall attachment point under certain pressure can be determined easily, thus be that the size of the rotary driving force of research fluidics sprinkler and the concrete structure design of fluidics sprinkler provide foundation.
Accompanying drawing explanation
Fig. 1 is fluidics sprinkler direct projection view.
Fig. 2 is full-jet-flow nozzle wall attachment view.
Fig. 3 is the measuring method schematic diagram of position of full-jet-flow nozzle wall attachment point.
In figure, 1. conduit, 2. signal nozzle, 3. graduated scale, 4. enter water nozzle, 5. basic circle hole.
Embodiment
The invention provides a kind of method determining position of full-jet-flow nozzle wall attachment point.For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularly go out preferred embodiment, and coordinate institute's accompanying drawings, be described below in detail.
As shown in Figure 1, first, have chosen and a kind ofly can observe that the transparent organic glass 30PXH fluidics sprinkler of internal flow situation is as experimental prototype, before on-test, paste high scale scale 3 in the outside of 30PXH fluidics sprinkler, the leading zero's of graduated scale 3 is the exit position in basic circle hole 5.
Then, utilize conduit 1 by the signal nozzle 2 of fluidics sprinkler with enter water nozzle 4 and link together, the working pressure 400kPa of setting shower nozzle, makes fluidics sprinkler remain on the state of steady operation.Survey record test figure is started at shower nozzle steady operation after 20 minutes.
Then, disconnect conduit 1 and the connection of signal nozzle 2, keep conduit 1 and the connection entering water nozzle 4, with pointing the entrance blocking conduit 1, power stream is attached wall to the right, reads the distance of power stream topmost portion apart from the leading zero's of graduated scale 3
sfor 23.8mm, read the distance of power stream lowermost part apart from the leading zero's of graduated scale 3 simultaneously
tfor 20.4mm.
Then, calculate
h=(
s+
t)/2 equal the distance of position apart from basic circle hole exits that 22.1mm is 30PXH full-jet-flow nozzle wall attachment point under 400kPa working pressure.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention is when being as the criterion depending on the appended right person of defining.
Claims (2)
1. determine a method for position of full-jet-flow nozzle wall attachment point, comprise the following steps:
A () first, determine experiment fluidics sprinkler model machine, the material of the fluidics sprinkler model machine selected is the transparent organic glass that can observe internal flow situation, high scale scale (3) is pasted in the outside of fluidics sprinkler, the regular shape of fluidics sprinkler model machine is smooth, thus ensures that fluidics sprinkler high scale scale is of a size of equidistant distribution; The leading zero's of described graduated scale (3) is the exit position place in basic circle hole (5);
(b) utilize conduit (1) by the signal nozzle (2) of fluidics sprinkler with enter water nozzle (4) and link together, the working pressure of setting shower nozzle, described signal nozzle, described in enter water nozzle, the position of described graduated scale (3) immobilizes all the time;
C () starts to measure test figure experiment, disconnect the connection of conduit and signal nozzle, keep conduit and the connection entering water nozzle, the entrance of conduit is blocked with finger, make do not have filling into of air into water nozzle place, on the left of fluidics sprinkler, pressure is greater than right side, and power stream is attached wall to the right, observe the internal flow situation of fluidics sprinkler, read the distance of power stream topmost portion apart from the leading zero's of described graduated scale (3) respectively
swith the distance of power stream lowermost part apart from the leading zero's of described graduated scale (3)
t;
D () calculates the distance of power stream topmost portion apart from the leading zero's of described graduated scale (3)
swith the distance of power stream lowermost part apart from the leading zero's of described graduated scale (3)
tmean value, obtain
h=(
s+
t)/2 are the distance of position apart from the leading zero's of described graduated scale (3) of full-jet-flow nozzle wall attachment point under setting working pressure, thus also just determine the position coordinates of full-jet-flow nozzle wall attachment point.
2. determine a method for position of full-jet-flow nozzle wall attachment point, it is characterized in that, under shower nozzle setting working pressure, steady operation starts to carry out experimental implementation after 10 minutes again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310359341.3A CN103438773B (en) | 2013-08-19 | 2013-08-19 | A kind of method determining position of full-jet-flow nozzle wall attachment point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310359341.3A CN103438773B (en) | 2013-08-19 | 2013-08-19 | A kind of method determining position of full-jet-flow nozzle wall attachment point |
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| CN103438773A CN103438773A (en) | 2013-12-11 |
| CN103438773B true CN103438773B (en) | 2015-11-18 |
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| CN201310359341.3A Expired - Fee Related CN103438773B (en) | 2013-08-19 | 2013-08-19 | A kind of method determining position of full-jet-flow nozzle wall attachment point |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936018A (en) * | 1974-08-08 | 1976-02-03 | Transland, Inc. | Jettisonable agricultural sprayer |
| CN2659553Y (en) * | 2003-06-02 | 2004-12-01 | 江苏大学 | Whole jetting sprayer |
| CN101352702A (en) * | 2008-03-10 | 2009-01-28 | 江苏大学 | Variable-spray whole-torrential flow showerhead |
-
2013
- 2013-08-19 CN CN201310359341.3A patent/CN103438773B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936018A (en) * | 1974-08-08 | 1976-02-03 | Transland, Inc. | Jettisonable agricultural sprayer |
| CN2659553Y (en) * | 2003-06-02 | 2004-12-01 | 江苏大学 | Whole jetting sprayer |
| CN101352702A (en) * | 2008-03-10 | 2009-01-28 | 江苏大学 | Variable-spray whole-torrential flow showerhead |
Non-Patent Citations (2)
| Title |
|---|
| 全射流喷头内部附壁点距离的计算;向清江等;《排灌机械》;20080531;第26卷(第3期);第55-58页 * |
| 全射流喷头射流元件附壁频率;向清江等;《排灌机械》;20090731;第27卷(第4期);第232-236页 * |
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| CN103438773A (en) | 2013-12-11 |
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Effective date of registration: 20160517 Address after: 212009 Jiangsu province Zhenjiang new Dingmao Road No. 99 by fifteen University of science and Technology Park 43 Patentee after: ZHENJIANG INSTITUTE OF FLUID ENGINEERING EQUIPMENT TECHNOLOGY, JIANGSU University Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: Jiangsu University |
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Granted publication date: 20151118 |