CN103645040A - Measurement method of complete fluidic sprinkler stepping angle - Google Patents
Measurement method of complete fluidic sprinkler stepping angle Download PDFInfo
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- CN103645040A CN103645040A CN201310669568.8A CN201310669568A CN103645040A CN 103645040 A CN103645040 A CN 103645040A CN 201310669568 A CN201310669568 A CN 201310669568A CN 103645040 A CN103645040 A CN 103645040A
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Abstract
The invention relates to a measurement method of complete fluidic sprinkler performance parameters and especially relates to a measurement method of a complete fluidic sprinkler stepping angle. Firstly, an experimental prototype of a complete fluidic sprinkler is selected, a start reference line for starting the reading of collection data is determined, a stop reference line for stopping the reading of collection data is determined, and an angle alpha between the start reference line and the stop reference line is obtained. Then the measurement of experiment data is started and repeated for m times, the total stepping time n of the complete fluidic sprinkler with the completion of angle alpha rotation is recorded, the total stepping time n i (i is an integer from 1 to m) after the completion of angle alpha rotation in each time is respectively measured, and then the total stepping time n' of the complete fluidic sprinkler with the completion of angle alpha rotation is obtained through calculation. The stepping angle beta of the complete fluidic sprinkler is obtained through the formula beta=alpha/n'. By using the method of the invention, the stepping angle of the complete fluidic sprinkler can be determined, and thus convenience is provided for the scientific research of the influence of the complete fluidic sprinkler stepping angle on a hydraulic performance parameter.
Description
Technical field
The present invention relates to the measuring method of relevant fluidics sprinkler performance parameter, especially a kind of measuring method of fluidics sprinkler stepping angle.
Background technology
Fluidics sprinkler relies in the course of the work the attached wall of power stream to promote shower nozzle and completes rotary work, and during each attached wall, the size of Moment has determined their stepping angle.When stepping angle refers to each time the attached wall of fluidics sprinkler, the angle of rotation that shower nozzle completes.For fluidics sprinkler, stepping angle is one of important performance indexes, and the size of stepping angle has determined their rotational speed, and can directly have influence on other water-power performance parameters such as range, water distribution.
Still a kind of method that there is no effective measurement fluidics sprinkler stepping angle in current research, if when some in particular cases causes fluidics sprinkler water-power performance parameter poor, just can not analyze it whether due to the former of stepping angular dimension thereby cause, thereby cannot effectively solve this problem in science.Therefore, the present invention proposes a kind of measuring method of fluidics sprinkler stepping angle to address the above problem, tool has very important significance.
Through retrieval, also there is no at present the relevant patent of declaring.
Summary of the invention
In order to determine the stepping angle of fluidics sprinkler, the invention provides a kind of measuring method of fluidics sprinkler stepping angle, comprise the following steps:
(a) first, select fluidics sprinkler as experimental prototype, set the working pressure of shower nozzle, make fluidics sprinkler remain on the state of steady operation.Consider the situation that when work has just started, fluidics sprinkler stepping angle may be stable not, need to set under working pressure steady operation 10 minutes at shower nozzle and start again to measure acquisition test data after above.The state of the steady operation of described fluidics sprinkler is that shower nozzle spin stabilization, attached wall are stable, and rotational speed is even.
(b) then, determine an original bench mark line that starts to read image data, determine that an end reads the termination datum line of image data, the angle [alpha] that obtains original bench mark line and stop being separated by between datum line.The angle [alpha] of being separated by between described original bench mark line and termination datum line is for being greater than 0 degree.
(c) start to measure test figure; From original bench mark line, start to read the stepping number of times of fluidics sprinkler, the stepping number of times that stops reading fluidics sprinkler at termination datum line place, records total stepping frequency n that fluidics sprinkler completes angle [alpha] rotation.The total stepping frequency n of the described fluidics sprinkler reading is for being more than or equal to 1 time.
(d) repeat above-mentioned surveying work m time, measure respectively the total stepping frequency n that at every turn completes angle [alpha] rotation
i(i=1,2 ... m), according to measurement result calculating mean value, obtain
be total stepping number of times of the fluidics sprinkler of angle [alpha] rotation.Described duplicate measurements work m time is for being more than or equal to 1 time.
(e) the total stepping frequency n ＇ except fluidics sprinkler in upper step (d) by the angle [alpha] of being separated by step (b), the β=α/n ' obtaining is the stepping angle of fluidics sprinkler.
Beneficial effect of the present invention: utilize method of the present invention can determine the stepping angle of fluidics sprinkler, thereby for scientific research fluidics sprinkler stepping angle, the impact of water-power performance parameter is provided convenience.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of aobvious fluidics sprinkler stepping angle measurement method.
In figure: 1. fluidics sprinkler, 2. angle [alpha], 3. original bench mark line, 4. stops datum line.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
The invention provides a kind of measuring method of fluidics sprinkler stepping angle.For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and coordinate appended graphicly, be described below in detail.
As shown in Figure 1, first, chosen 10PXH fluidics sprinkler 1 as experimental prototype, the working pressure of setting shower nozzle is 250kPa, makes fluidics sprinkler remain on the state of steady operation.At shower nozzle steady operation start to measure test figure after 20 minutes.
Then, determine an original bench mark line 3 that starts to read image data, determine that an end reads the termination datum line 4 of image data, the angle [alpha] 2 of being separated by is 360 °.
Then, repeat to measure for 5 times total stepping number of times that fluidics sprinkler 1 completes 360 ° of rotations, total stepping frequency n i (i=1,2 of record ... 5) be respectively: 125,120,130,127,122, obtain total stepping number of times that fluidics sprinkler completes 360 ° of rotations and be
Then, by 360 °, except upper total stepping number of times 124.8, obtain the stepping angle beta=360 °/124.8=2.88 ° of fluidics sprinkler.
This described embodiment is preferred embodiment of the present invention; but invention is not limited to above-mentioned embodiment; in the situation that not deviating from flesh and blood of the present invention, any apparent improvement, replacement or modification that those skilled in the art can make all belong to protection scope of the present invention.
Claims (6)
1. a measuring method for fluidics sprinkler stepping angle, comprises the following steps:
(a) select fluidics sprinkler (1) as experimental prototype, set the working pressure of shower nozzle, make fluidics sprinkler (1) remain on the state of steady operation;
(b) determine an original bench mark line (3) that starts to read image data, determine that an end reads the termination datum line (4) of image data, the angle [alpha] (2) that obtains original bench mark line (3) and stop being separated by between datum line (4);
(c) start to measure test figure; From original bench mark line (3), start to read the stepping number of times of fluidics sprinkler (1), at termination datum line (4), locate to stop reading the stepping number of times of fluidics sprinkler (1), record total stepping frequency n that fluidics sprinkler (1) completes angle [alpha] (2) rotation;
(d) repeat above-mentioned surveying work m time, measure respectively the total stepping frequency n that at every turn completes angle [alpha] (2) rotation
i(i=1,2 ... m), according to measurement result calculating mean value, obtain
be total stepping number of times of the fluidics sprinkler (1) of angle [alpha] (2) rotation;
(e) the total stepping frequency n ＇ except fluidics sprinkler (1) in upper step (d) by the angle [alpha] (2) in step (b), the β=α/n ' obtaining is the stepping angle of fluidics sprinkler (1).
2. the measuring method of fluidics sprinkler stepping angle according to claim 1, is characterized in that: the stable duty of described fluidics sprinkler (1) is that shower nozzle spin stabilization, attached wall are stable, and rotational speed is even.
3. the measuring method of fluidics sprinkler stepping angle according to claim 1, is characterized in that: start measurement collection test figure after 10 minutes setting shower nozzle steady operation pressure again.
4. the measuring method of fluidics sprinkler stepping angle according to claim 1, is characterized in that: the angle [alpha] (2) of being separated by between described original bench mark line (3) and termination datum line (4) is for being greater than 0 degree.
5. the measuring method of fluidics sprinkler stepping angle according to claim 1, is characterized in that: described in the total stepping frequency n of fluidics sprinkler (1) that reads for being more than or equal to 1 time.
6. the measuring method of fluidics sprinkler stepping angle according to claim 1, is characterized in that: described duplicate measurements work m time is for being more than or equal to 1 time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669568.8A CN103645040A (en) | 2013-12-11 | 2013-12-11 | Measurement method of complete fluidic sprinkler stepping angle |
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| CN201310669568.8A CN103645040A (en) | 2013-12-11 | 2013-12-11 | Measurement method of complete fluidic sprinkler stepping angle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110203813A1 (en) * | 2007-11-09 | 2011-08-25 | Marcus Brian Mayhall Fenton | Fire protection apparatus, systems and methods for addressing a fire with a mist |
| JP2011203060A (en) * | 2010-03-25 | 2011-10-13 | Fuji Heavy Ind Ltd | Spray measuring method and spray measuring instrument |
| CN102706545A (en) * | 2012-04-10 | 2012-10-03 | 中国水利水电科学研究院 | Automatic measuring device for characteristic parameters of irrigation sprinkler |
| CN103033352A (en) * | 2012-12-14 | 2013-04-10 | 江苏大学 | Rotation-type shower nozzle rolling uniformity measuring device and method |
-
2013
- 2013-12-11 CN CN201310669568.8A patent/CN103645040A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110203813A1 (en) * | 2007-11-09 | 2011-08-25 | Marcus Brian Mayhall Fenton | Fire protection apparatus, systems and methods for addressing a fire with a mist |
| JP2011203060A (en) * | 2010-03-25 | 2011-10-13 | Fuji Heavy Ind Ltd | Spray measuring method and spray measuring instrument |
| CN102706545A (en) * | 2012-04-10 | 2012-10-03 | 中国水利水电科学研究院 | Automatic measuring device for characteristic parameters of irrigation sprinkler |
| CN103033352A (en) * | 2012-12-14 | 2013-04-10 | 江苏大学 | Rotation-type shower nozzle rolling uniformity measuring device and method |
Non-Patent Citations (2)
| Title |
|---|
| 朱兴业: "全射流喷头理论及精确喷灌关键技术研究", 《中国博士学位论文全文数据库 农业科技辑》 * |
| 朱兴业等: "全射流喷头转折角喷管运动力学分析与试验", 《农业机械学报》 * |
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Application publication date: 20140319 |