CN105699109A - Pipeline water power anti-flushing feature testing method and device employing the same - Google Patents
Pipeline water power anti-flushing feature testing method and device employing the same Download PDFInfo
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- CN105699109A CN105699109A CN201610219926.9A CN201610219926A CN105699109A CN 105699109 A CN105699109 A CN 105699109A CN 201610219926 A CN201610219926 A CN 201610219926A CN 105699109 A CN105699109 A CN 105699109A
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- water tank
- constant current
- pipeline
- simulation pipeline
- current water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Abstract
The invention discloses a pipeline water power anti-flushing feature testing method and a device employing the same. The method includes: (1) opening overflow ports in a simulation pipeline water power anti-flushing feature testing device and obtaining anti-flushing water head H of a constant current water tank through a water gauge; (2)adding sand particles of a fixed mass into the simulation pipeline through a sand injection hole; (3) determining the time t required for flushing away the sand particles in the simulation pipeline completely; (4) drawing a deposit characteristic curve of the simulation pipeline according to a single experiment array with a predetermined quantity. The constant current water tank of the testing device is provided with the water gauge and the side wall of the constant current water tank is provided with a plurality of the overflow ports equipped with gate valves. The other ends of the overflow ports are connected with a water inlet tank through overflow pipes. The simulation pipeline is provided with the sand injection holes used for sand input and the sand injection holes are provided with screw caps. The water outlet tank is communicated with a water inlet tank through a return pipe. The method and device provided by the invention has a technical effect that pipeline water power anti-flushing performance testing is realized.
Description
Technical field
The present invention relates to the measuring technology of a kind of pipeline hydraulic backwash, be specifically related to method of testing and the equipment of a kind of pipeline hydraulic backwash characteristic。
Background technology
The sewerage system in city is the important civilian infrastructure that modern city is indispensable, and pipeline alluvial blocking is the major issue faced in drainage pipeline networks daily operation management。It is one of major way blocking pipe network desilting that hydraulic reverse is rinsed, but lacks the technical parameter of pipeline alluvial and backwash in design and construction, lacks necessary data support on the hydraulic calculation and analysis and maintenance desilting management of drainage pipeline networks。Teaching lacks corresponding experiment test device。
Chinese patent literature CN104897188A discloses a kind of method analyzing drainage pipeline alluvial characteristic and experimental provision on the 9th in JIUYUE in 2015, and this Patent equipment includes cistern, constant current water tank, test pipeline, water tank；Cistern is by reflux pump to described constant current cistern water supply, and the water in constant current water tank flows into the water inlet of test pipeline with default constant flow rate, and the outlet of test pipeline connects with water tank；Test pipeline is provided with several water level monitoring vertical tubes, and the gradient of test pipeline is adjustable, is provided with the barrier for simulating alluvial situation in test pipeline。
This patented method measures the first monitoring location and the second monitoring location the first hydraulic gradient when clear, the second hydraulic gradient when having a barrier, ratio according to the first hydraulic gradient and the second hydraulic gradient determines pipeline alluvial index, obtain single experiment array, utilize the alluvial situation of pipeline alluvial index reflection pipeline。This patent there is the problem that this Patent equipment can not test the characteristic that pipeline hydraulic reverse is rinsed, and does not also record the means of testing of pipeline hydraulic backwash characteristic。
Summary of the invention
For the defect existed in prior art, the technical problem to be solved is just to provide the method for testing of a kind of pipeline hydraulic backwash characteristic, also provides for the test device of a kind of pipeline hydraulic backwash characteristic, and it can test the characteristic that pipeline hydraulic reverse is rinsed。
In order to solve above-mentioned technical problem, the invention provides a kind of method of testing simulating pipeline hydraulic backwash characteristic, comprise the following steps:
1, on simulation pipeline hydraulic backwash characteristic test device, open the overfall of constant current water tank, obtained the backwash head h of constant current water tank by gauge,
2, add the sand grains of fixed mass to simulation pipeline by noting sand hole；
3, discharged water by simulation pipe water mouth, measure sand grains in simulation pipeline and rinse required time t well；
4, the backwash head h of described constant current water tank is regulated by the overfall that constant current water tank is different, repeating said steps 1 to step 3, after obtaining the single experiment array of predetermined number, draw hydraulic reverse according to the single experiment array of predetermined number and rinse the characteristic of head h and backwashing time t。
The present invention also provides for the device of the method for testing of a kind of above-mentioned pipeline hydraulic backwash characteristic, including inlet water tank, intake pump, constant current water tank, water tank and simulation pipeline；Intake pump in inlet water tank is by water inlet pipe connection constant current water tank, constant current water tank connects simulation pipeline by valve, the outlet of simulation pipeline connects water tank, constant current water tank is provided with gauge, and constant current water tank sidewall is provided with at least 2 overfalls, and overfall is provided with gate valve, the overfall other end is connected with inlet water tank by overflow pipe, simulation pipeline is provided with the note sand hole adding silt, and note sand hole is plugged with nut, and water tank is connected with inlet water tank by return duct。
The present invention overfall by constant current water tank, regulate the backwash head h of described constant current water tank, measure sand grains in simulation pipeline and rinse required time t well, it is determined that pipeline hydraulic backwash performance parameter, and draw out the pipeline backwash characteristic curve of hydraulic reverse flushing head h and backwashing time t。
Compared with prior art, the solution have the advantages that: achieve pipeline hydraulic backwash performance test, the pipeline alluvial backwash in managing for actual motion provides the parameter of science。
Accompanying drawing explanation
The accompanying drawing of the present invention illustrates as follows:
Fig. 1 is the simulation pipeline hydraulic backwash characteristic test device structural representation of the present invention；
Fig. 2 is the partial enlarged drawing at A place in Fig. 1。
In figure: 1. constant current water tank；2. gauge；3. overfall；4. inlet water tank；5. intake pump；6. water tank；7. return duct；8. note sand hole；9. simulation pipeline。
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
The invention provides a kind of method of testing simulating pipeline hydraulic backwash characteristic, comprise the following steps:
1, on simulation pipeline hydraulic backwash characteristic test device as shown in Figure 1, open the overfall of constant current water tank, obtained the backwash head h of constant current water tank by gauge,
2, add the sand grains of fixed mass to simulation pipeline by noting sand hole；
3, discharged water by simulation pipe water mouth, measure sand grains in described simulation pipeline and rinse required time t well;
4, the backwash head h of described constant current water tank is regulated by the overfall that constant current water tank is different, repeating said steps 1 to step 3, after obtaining the single experiment array of predetermined number, draw hydraulic reverse according to the single experiment array of predetermined number and rinse the characteristic of head h and backwashing time t。
Above-mentioned sand grains adopts polyvinyl chloride particles, as simulation sand grains。
Simulation pipeline hydraulic backwash characteristic test device as shown in Figure 1 is to have improved on the patent documentation CN104897188A experimental provision analyzing drainage pipeline alluvial characteristic recorded:
This simulation pipeline hydraulic backwash characteristic test device includes inlet water tank 4, intake pump 5, constant current water tank 1, water tank 6 and simulation pipeline 9；Intake pump 5 in inlet water tank 4 is by water inlet pipe connection constant current water tank 1, constant current water tank 1 connects simulation pipeline 9 by valve, the outlet of simulation pipeline 9 connects water tank 6, constant current water tank 1 is provided with gauge 2, and constant current water tank 1 sidewall is provided with 5 overfalls 3, and overfall is provided with gate valve, the overfall other end is connected with inlet water tank 4 by overflow pipe, simulation pipeline 9 is provided with the note sand hole 8 adding silt, and note sand hole 8 is plugged with nut, and water tank 6 is connected with inlet water tank 1 by return duct 7。
Constant current water tank 1 uses gauge 2 to read height of water level, in this embodiment, constant current water tank is provided with five overfalls 3, overfall is provided with gate valve, the overfall other end is connected with inlet water tank 4 by overflow pipe, water in inlet water tank 4 is pressed into constant current water tank 1 by water inlet pipe by intake pump 5, when the inflow of water inlet pipe exceedes the water yield of constant current outlet so that the water in constant current water tank flows into inlet water tank by gap, overfall is utilized to control water outlet height of water level to keep constant discharging。The height of five overfalls is different, can obtain different backwash head h。The number of certain overfall can be arranged as required to。
As in figure 2 it is shown, simulation pipeline 9 has note sand hole 8, during note sand, import polyvinyl chloride particles with funnel；Do not need to note sand hole with nut blocking during note sand。
Claims (2)
1. a method of testing for pipeline hydraulic backwash characteristic, is characterized in that, includes following steps:
1, on simulation pipeline hydraulic backwash characteristic test device, open the overfall of constant current water tank, obtained the backwash head h of constant current water tank by gauge,
2, add the sand grains of fixed mass to simulation pipeline by noting sand hole；
3, discharged water by simulation pipe water mouth, measure sand grains in described simulation pipeline and rinse required time t well；
4, the backwash head h of described constant current water tank is regulated by the overfall that constant current water tank is different, repeating said steps 1 to step 3, after obtaining the single experiment array of predetermined number, draw hydraulic reverse according to the single experiment array of predetermined number and rinse the characteristic of head h and backwashing time t。
2. implement a device for pipeline hydraulic backwash characteristic test method described in claim 1, including inlet water tank (4), intake pump (5), constant current water tank (1), water tank (6) and simulation pipeline (9)；Intake pump (5) in inlet water tank (4) connects constant current water tank (1) by water inlet pipe, constant current water tank (1) connects simulation pipeline (9) by valve, the outlet of simulation pipeline (9) connects water tank (6), it is characterized in that: constant current water tank (1) is provided with gauge (2), constant current water tank (1) sidewall is provided with at least 2 overfalls (3), overfall is provided with gate valve, the overfall other end is connected with inlet water tank (4) by overflow pipe, simulation pipeline (9) is provided with the note sand hole (8) adding silt, note sand hole (8) is plugged with nut, water tank (6) is connected with inlet water tank (1) by return duct (7)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219926.9A CN105699109A (en) | 2016-04-11 | 2016-04-11 | Pipeline water power anti-flushing feature testing method and device employing the same |
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| CN201610219926.9A CN105699109A (en) | 2016-04-11 | 2016-04-11 | Pipeline water power anti-flushing feature testing method and device employing the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589047A (en) * | 2017-08-29 | 2018-01-16 | 山东大学 | A kind of the brief test device and test method of indoor dynamic water slip casting simulation |
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| RU2191863C2 (en) * | 1998-09-04 | 2002-10-27 | Федеральное государственное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" | Method of cleaning drainage pipeline from accumulation of mud |
| CN202070519U (en) * | 2011-03-30 | 2011-12-14 | 深圳普鲁士特空压系统有限公司 | Intelligent cleaning device of air compressor cooler |
| CN202216882U (en) * | 2011-08-26 | 2012-05-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Testing device for mixing effects of scouring abrasion and cavitation erosion |
| CN202694639U (en) * | 2012-06-27 | 2013-01-23 | 华北电力大学（保定） | Small flow resistance comprehensive laboratory table |
| CN203546894U (en) * | 2013-09-12 | 2014-04-16 | 贵阳铝镁设计研究院有限公司 | Flushing well |
| CN104897188A (en) * | 2015-06-17 | 2015-09-09 | 上海水顿智能科技有限公司 | Method and experiment apparatus for analyzing drainage pipeline siltation characteristics |
-
2016
- 2016-04-11 CN CN201610219926.9A patent/CN105699109A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2191863C2 (en) * | 1998-09-04 | 2002-10-27 | Федеральное государственное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" | Method of cleaning drainage pipeline from accumulation of mud |
| CN202070519U (en) * | 2011-03-30 | 2011-12-14 | 深圳普鲁士特空压系统有限公司 | Intelligent cleaning device of air compressor cooler |
| CN202216882U (en) * | 2011-08-26 | 2012-05-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Testing device for mixing effects of scouring abrasion and cavitation erosion |
| CN202694639U (en) * | 2012-06-27 | 2013-01-23 | 华北电力大学（保定） | Small flow resistance comprehensive laboratory table |
| CN203546894U (en) * | 2013-09-12 | 2014-04-16 | 贵阳铝镁设计研究院有限公司 | Flushing well |
| CN104897188A (en) * | 2015-06-17 | 2015-09-09 | 上海水顿智能科技有限公司 | Method and experiment apparatus for analyzing drainage pipeline siltation characteristics |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107589047A (en) * | 2017-08-29 | 2018-01-16 | 山东大学 | A kind of the brief test device and test method of indoor dynamic water slip casting simulation |
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Application publication date: 20160622 |