CN201852692U - Measurement device for bed-load sediment transport rate in common test water tank - Google Patents
Measurement device for bed-load sediment transport rate in common test water tank Download PDFInfo
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- CN201852692U CN201852692U CN2010205344900U CN201020534490U CN201852692U CN 201852692 U CN201852692 U CN 201852692U CN 2010205344900 U CN2010205344900 U CN 2010205344900U CN 201020534490 U CN201020534490 U CN 201020534490U CN 201852692 U CN201852692 U CN 201852692U
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Abstract
The utility model provides a measurement device for bed-load sediment transport rate in a common test water tank. The measurement device consists of a sand storage tube (1), round-mouth rubber plugs (2), a sand sealing bar (3) and towing lines (4) and is characterized in that a sand inlet groove (5) is cut at the middle position of the tube wall of the sand storage tube (1); the sand sealing bar (3) is arranged in the sand storage tube (1); the towing lines (4) are tied at two ends and at the middle position of the sand sealing bar (3); the towing lines (4) are drawn out from the sand inlet groove; and two ports of the sand storage tube (1) are blocked by the round-mouth rubber plugs (2). The measurement device has the advantages of simple structure, scientific design, wide application range, larger practicability, good economical performance and good durability, can not affect the structure of a flow field and is suitable for wide popularization.
Description
Technical field
The utility model relates to a kind of measurement mechanism of silt silt discharge, relates in particular to the measurement mechanism of bed load sediment silt discharge in a kind of conventional test tank.
Background technology
Bed load discharge is the important parameter that characterizes the sediment movement situation in river load dynamics and the seashore silt dynamics, is the crucial and basic of sediment movement research, engineering design, model test and simulating river.Along the river bed surface rolling, grit mobile and that jump claim traction load, and interior traction load sand by a certain section of rivers and canals was measured and claimed bed load discharge the unit interval, in Kilograms Per Second.The purpose of indoor traction load test is the research traction load characteristics of motion and silt discharge computing method, provides rational method for inquiring into total sediment discharge.
The method of carrying out the bed load discharge test in the shop experiment tank has: 1. device is surveyed method, be bed load sampler to be placed directly in gather the traction load sample on the bed surface, owing to after instrument is put into bed surface, changed the water flow structure of bed surface, thereby the test achievement can not reflect actual conditions fully.2. cheat the survey method, normally adopt on the tank bottom, to be provided with and survey the hole, calculate silt discharge with the husky groove that connects that forms the V-type mouth.But when connecing sand, husky phenomenon can appear drawing rapidly in V-type mouth upstream, has increased the husky amount of sampling, and common tank need be transformed and could use the method, inconvenience.
Summary of the invention
The purpose of this utility model is to solve domestic existing measuring technique defective and deficiency in the field at present, developed a kind of may command sample time and the sand meter that exerts an influence of stream field not, this device is by storage sand tube, round mouth rubber plug, the husky rod of envelope, draught line is formed.Seal husky rod and place in the storage sand tube, block the storage sand tube mouth of pipe by the round mouth rubber plug, this instrument is not placed on silt bottom surface, do not change the water flow structure of bed surface, improved measuring accuracy, be applicable to existing common experimental tank, simple in structure easy-to-use, cost is low, can save overspending.
The purpose of this utility model is realized by following technical scheme, developed the measurement mechanism of bed load sediment silt discharge in a kind of conventional test tank, this device is by storage sand tube 1, round mouth rubber plug 2, the husky rod 3 of envelope, draught line 4 is formed, it is characterized in that: cut out one in storage sand tube 1 tube wall middle part and advance husky groove 5, and a husky rod 3 of envelope is set in the sand tube 1 in storage, fasten draught line 4 at husky excellent 3 two ends of envelope and middle place, draught line 4 is extracted out from advance husky groove, round mouth rubber plug 2 shutoff of two ports of storage sand tube 1.
The measurement mechanism of bed load sediment silt discharge in the described conventional test tank, length is less than the experimental tank width.
Advance husky groove 5 vertically upward and be embedded in below the silt bottom surface on storage sand tube 1 tube wall in the described conventional test tank in the measurement mechanism of bed load sediment silt discharge, parallel with silt bottom upper surface.
The length of the husky rod 3 of the envelope in the described conventional test tank in the measurement mechanism of bed load sediment silt discharge is greater than the length of the length of advancing husky groove 5 less than storage sand tube 1, and width is greater than the diameter that advances husky groove 5, less than the internal diameter of storage sand tube 1.
The utility model has the advantages that: simple in structure, design science does not influence flow field structure during measurement, applied widely, has bigger practicality, economy and durability, suitable extensively popularization.
Description of drawings
Fig. 1 is the vertical view of bed load discharge measurement mechanism;
Embodiment
Referring to Fig. 1, studied the measurement mechanism of bed load sediment silt discharge in a kind of conventional test tank, step is as follows:
This device is by storage sand tube 1, round mouth rubber plug 2, the husky rod 3 of envelope, draught line 4 is formed, it is characterized in that: cut out one in storage sand tube 1 tube wall middle part and advance husky groove 5, and a husky rod 3 of envelope is set in storage sand tube 1, fasten draught line 4 at husky excellent 3 two ends of envelope and middle place, draught line 4 is extracted out from advance husky groove, round mouth rubber plug 2 shutoff of two ports of storage sand tube 1.
The measurement mechanism of bed load sediment silt discharge in the described conventional test tank, length is less than the experimental tank width.
Advance husky poor 5 vertically upward and be embedded in below the silt bottom surface on storage sand tube 1 tube wall in the described conventional test tank in the measurement mechanism of bed load sediment silt discharge, parallel with silt bottom upper surface.
The length of the husky rod 3 of the envelope in the described conventional test tank in the measurement mechanism of bed load sediment silt discharge is greater than the length of the length of advancing husky groove 5 less than storage sand tube 1, and width is greater than the diameter that advances husky groove 5, less than the internal diameter of storage sand tube 1.
For further understanding the utility model content, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Hypothesis test water groove width 60cm, the plexi-glass tubular of intercepting diameter 10cm, thickness 5mm, length 56cm (less than the inboard width of tank) is as the storage sand tube, cut out the husky groove of advancing of long 40cm, a wide 5mm in storage sand tube 1 tube wall middle part, then the rubber bar of a long 50cm, diameter 10mm is put into storage sand tube 1 as the husky rod 3 of envelope, fasten draught line 4 at husky excellent 3 two ends of envelope and middle place, draught line 4 is extracted out from the stria that cuts out, round mouth rubber plug 2 shutoff of two ports of storage sand tube 1, the schematic perspective view of bed load discharge measurement mechanism is seen Fig. 3.
When measuring bed load discharge, this measurement mechanism is embedded in below the silt bottom surface, advance husky groove vertically upward on storage sand tube 1 tube wall, and it is parallel with silt bottom upper surface, bed load sediment is through long 40cm, wide 5mm advance husky groove the time silt in the section because gravity falls into storage sand tube 1, after arriving Measuring Time, three draught lines 4 draw simultaneously, into husky groove is promptly sealed in the husky rod of envelope 3 stressed risings in the storage sand tube 1, silt no longer enters in the storage sand tube 1, draws in the continuation, storage sand tube 1 integral body can be left the water.Open round mouth rubber plug 2 and filter out moisture in the pipe, dry and weigh, both the section sedimentary loading of fixed time section, this sedimentary loading is the section silt discharge divided by the time.
This device can be used for measuring the traction load section silt discharge under the steady flow effect, also can measure the traction load section silt discharge under the standing wave effect.Under the standing wave effect, this device is placed standing wave silt underwashing symmetry place, the interior collection of storage sand tube silt weight reduces by half and is sedimentary loading.
When removal is made stream and is made wave as need, owing to flow velocity increases the measuring error that produces gradually, can will advance husky groove gently with adhesive waterproof tape or viscose paper and seal and connect independent draught line to more than the water surface, treat that sediment incipient motion steadily evenly moves after, the pulling draught line is opened and is sealed.
In addition, the utility model and not meaning that by synoptic diagram and instructions limits to, and can change to some extent under the prerequisite that does not break away from design aim and principle thereof.
Claims (4)
1. the measurement mechanism of bed load sediment silt discharge in the conventional test tank, by storage sand tube (1), round mouth rubber plug (2), the husky rod of envelope (3), draught line (4) is formed, and it is characterized in that: cut out one in storage sand tube (1) tube wall middle part and advance husky groove (5), and a husky rod of envelope (3) is set in storage sand tube (1), fasten draught line (4) at husky excellent (3) two ends of envelope and middle place, draught line (4) is extracted out from advance husky groove, two ports round mouth rubber plug (2) shutoff of storage sand tube (1).
2. the measurement mechanism of bed load sediment silt discharge in the conventional test tank according to claim 1 is characterized in that: described measurement mechanism length is less than the experimental tank width.
3. the measurement mechanism of bed load sediment silt discharge in the conventional test tank according to claim 1, it is characterized in that: advance husky groove (5) vertically upward and be embedded in below the silt bottom surface on described storage sand tube (1) tube wall, parallel with silt bottom upper surface.
4. the measurement mechanism of bed load sediment silt discharge in the conventional test tank according to claim 1, it is characterized in that: the length of the husky rod of described envelope (3) is greater than the length of the length of advancing husky groove (5) less than storage sand tube (1), width is greater than the diameter that enters husky groove (5), less than the internal diameter of storage sand tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205344900U CN201852692U (en) | 2010-09-14 | 2010-09-14 | Measurement device for bed-load sediment transport rate in common test water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205344900U CN201852692U (en) | 2010-09-14 | 2010-09-14 | Measurement device for bed-load sediment transport rate in common test water tank |
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| CN201852692U true CN201852692U (en) | 2011-06-01 |
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| CN2010205344900U Expired - Fee Related CN201852692U (en) | 2010-09-14 | 2010-09-14 | Measurement device for bed-load sediment transport rate in common test water tank |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331335A (en) * | 2011-07-15 | 2012-01-25 | 曹彭强 | Sand launder test apparatus of first type boundary of underground water |
| CN102680204A (en) * | 2012-05-11 | 2012-09-19 | 河海大学 | Method and device for simulating bottom sludge erosion and transmission feature in rectangular trough |
| CN104122190A (en) * | 2014-07-30 | 2014-10-29 | 中国水利水电科学研究院 | Device and method for measuring sediment transport rate and grain composition of bed load in real time |
| CN105178241A (en) * | 2015-06-08 | 2015-12-23 | 北京江宜科技有限公司 | Open channel water channel bed-load transport rate ceaseless measuring system |
| CN105547641A (en) * | 2016-01-27 | 2016-05-04 | 广东水利电力职业技术学院 | Device and method of automatic sand addition of bed load test section |
| CN106932170A (en) * | 2017-04-05 | 2017-07-07 | 青岛海洋地质研究所 | The test method and device of hydrate layer output fine sand migration rule in gravel layer |
| CN107884154A (en) * | 2017-11-10 | 2018-04-06 | 长江水利委员会长江科学院 | Bed load discharge measuring system and measuring method based on cross-correlation method |
| CN108168959A (en) * | 2018-03-02 | 2018-06-15 | 江西理工大学 | A kind of bed load sediment sampler and its application method |
| CN110632277A (en) * | 2019-09-20 | 2019-12-31 | 中国农业大学 | Method and device for measuring sand conveying capacity of concentrated water flow |
| CN113737710A (en) * | 2021-08-12 | 2021-12-03 | 中国长江三峡集团有限公司 | Estimation method of sediment transport rate of natural river bed load |
-
2010
- 2010-09-14 CN CN2010205344900U patent/CN201852692U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331335A (en) * | 2011-07-15 | 2012-01-25 | 曹彭强 | Sand launder test apparatus of first type boundary of underground water |
| CN102331335B (en) * | 2011-07-15 | 2013-03-06 | 曹彭强 | Sand launder test apparatus of first type boundary of underground water |
| CN102680204A (en) * | 2012-05-11 | 2012-09-19 | 河海大学 | Method and device for simulating bottom sludge erosion and transmission feature in rectangular trough |
| CN104122190A (en) * | 2014-07-30 | 2014-10-29 | 中国水利水电科学研究院 | Device and method for measuring sediment transport rate and grain composition of bed load in real time |
| CN105178241B (en) * | 2015-06-08 | 2017-03-22 | 北京江宜科技有限公司 | Open channel water channel bed-load transport rate ceaseless measuring system |
| CN105178241A (en) * | 2015-06-08 | 2015-12-23 | 北京江宜科技有限公司 | Open channel water channel bed-load transport rate ceaseless measuring system |
| CN105547641A (en) * | 2016-01-27 | 2016-05-04 | 广东水利电力职业技术学院 | Device and method of automatic sand addition of bed load test section |
| CN106932170A (en) * | 2017-04-05 | 2017-07-07 | 青岛海洋地质研究所 | The test method and device of hydrate layer output fine sand migration rule in gravel layer |
| CN107884154A (en) * | 2017-11-10 | 2018-04-06 | 长江水利委员会长江科学院 | Bed load discharge measuring system and measuring method based on cross-correlation method |
| CN107884154B (en) * | 2017-11-10 | 2019-05-31 | 长江水利委员会长江科学院 | Bed load discharge measuring system and measurement method based on cross-correlation method |
| CN108168959A (en) * | 2018-03-02 | 2018-06-15 | 江西理工大学 | A kind of bed load sediment sampler and its application method |
| CN110632277A (en) * | 2019-09-20 | 2019-12-31 | 中国农业大学 | Method and device for measuring sand conveying capacity of concentrated water flow |
| CN110632277B (en) * | 2019-09-20 | 2020-07-28 | 中国农业大学 | Method and device for measuring sand conveying capacity of concentrated water flow |
| CN113737710A (en) * | 2021-08-12 | 2021-12-03 | 中国长江三峡集团有限公司 | Estimation method of sediment transport rate of natural river bed load |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20110914 |