CN205228873U - Floating runoff sediment load sampling is dark section water inlet device entirely - Google Patents
Floating runoff sediment load sampling is dark section water inlet device entirely Download PDFInfo
- Publication number
- CN205228873U CN205228873U CN201521031634.XU CN201521031634U CN205228873U CN 205228873 U CN205228873 U CN 205228873U CN 201521031634 U CN201521031634 U CN 201521031634U CN 205228873 U CN205228873 U CN 205228873U
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- China
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- water inlet
- runoff
- inlet pipe
- water
- dark section
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Abstract
The utility model discloses a floating runoff sediment load sampling is dark section water inlet device entirely, include: base, one end are sealed the rotatable setting of the other end and are in inlet tube on the base is in with the setting the floater of inlet tube blind end, the floater can make the blind end of inlet tube float on the surface of water, a plurality of hole has been seted up back to the first -class spaced of pipe wall of water flow direction one side to the inlet tube. During the measurement arrange the base in the bottom of runoff, the one end of inlet tube is passed through the floater and is floated on the surface of water, and the other end is located the bottom of runoff, and the water sample gets into wherein from the hole that the inlet tube was seted up, adopt above -mentioned structure after, the utility model discloses a water inlet device main part form does not influence the runoff characteristic, and the one end of inlet tube all is located the surface of water when just guaranteeing different water level through the floater, can guarantee to gather the water sample of complete dark section.
Description
Technical field
The utility model relates to the runoff and sediment sampler of the automatic detection field of a kind of water and soil conservation.More specifically, a kind of floating type runoff and sediment sampling complete section face water inlet device is related to.
Background technology
Small watershed runoff monitoring sediment is the important content of water and soil conservation value.Run-off monitoring is general builds the standard volume drainage facilities such as runoff weir (groove) at small watershed mouth station according to characteristics of rainfall and flood peak feature for many years, by the water level that observes and given formulae discovery flow.And the monitoring of runoff mean sediment concentration, the impact of skewness on runoff vertical section by sediment grain size and content, and by the impact that runoff velocity there are differences at different depth, need in the sampling of different water depth place or measure.Due to the change of flood level, sampling or the measurement artificial process at different water depth place are comparatively easy to do, and automatically method is more difficult accomplishes, the such as equipment of single probe, can Sample and measurement during for ensureing little water level, many instrument probe is fixed on bottom runoff, cause measure sediment charge and particle diameter higher, and Multi probe equipment, owing to being fixed on differing heights, when causing low-water level, major part probe exposes in atmosphere, cannot use, and the change of water level makes the probe measurement degree of depth also in change, adds the difficulty of calculating.It is pump drawing type runoff and sediment sampling thief that more automatic equipment is applied in current sediment load sampling, this sampling thief lays water inlet pipe in runoff, by peristaltic pump pumps muddy water sample, then automatic subpackaging is in different sampling bottles, is widely applied to the water sampling of water and soil conservation and field of Environment Protection.The ISCO6712 sampler that such as American I SCO company produces, the HC-9601 sampler that Chinese Green Si Pu company produces is all pump drawing type runoff and sediment sampler.But the defect of this kind equipment is that water inlet device can only be fixed bottom runoff or a certain height, to ensure can get water sample when low-water level, thus causing the representativeness of runoff and sediment sample to reduce, the runoff that especially silt content is higher, the sample silt content measured and particle diameter are apparently higher than actual value.
Utility model content
The technical problems to be solved in the utility model is to provide the complete dark section water inlet device of a kind of floating type runoff and sediment sampling, this water inlet device can adjust its position in the depth of water according to the change of runoff water level automatically, and can sample the complete section face of runoff, the silt content that institute's water sampling measures and reality close.
For solving the problems of the technologies described above, the utility model adopts following technical proposals:
The complete dark section water inlet device of a kind of floating type runoff and sediment sampling, comprise: base, one end close the rotating ball float being arranged on the water inlet pipe on described base and being arranged on described water inlet pipe blind end of the other end, described ball float can make on the blind end of water inlet pipe bubbles through the water column, and described water inlet pipe is equally spaced on the tube wall of water (flow) direction side offers several holes.During measurement, base is placed in the bottom of runoff, one end of water inlet pipe is floated on the surface by ball float, the other end is positioned at the bottom of runoff, water sample enters wherein from the hole that water inlet pipe is offered, adopt after said structure, water inlet device subject form of the present utility model does not affect characteristics of Runoff, and when ensureing different water level by ball float, one end of water inlet pipe is all positioned at the water surface, the other end of water inlet pipe and base are positioned at the bottom of runoff, can ensure the water sample collecting the complete dark section of runoff.
Preferably, the aperture in the hole described water inlet pipe offered calculates according to the following formula:
R in formula
nrepresent the diameter in the n-th hole, R
1represent the diameter in the 1st hole, l represents the distance of the n-th hole to the 1st hole, and L represents the length that water inlet pipe submerges in water.Water inlet pipe is offered the hole calculating aperture according to above formula can ensure to gather the feature that water sample can represent runoff silt content.
Preferably, the length of described water inlet pipe is greater than the maximum stage 15cm of runoff.
Preferably, what the other end of described water inlet pipe was vertical is provided with a transverse tube be communicated with it, and described transverse tube is arranged on described base by bearing is rotating, and one end of described transverse tube is closed the other end and is connected with sampler.
Preferably, described water inlet pipe is connected with transverse tube by screw thread.
Preferably, described transverse tube is stainless-steel tube.
Preferably, described water inlet pipe is PPR pipe, and caliber is greater than the water inlet of sampler.
Preferably, described ball float is crash-resistant EVA elasticity ball float.
Preferably, described base is corrosion resistant plate.
The beneficial effects of the utility model are as follows:
The utility model one automatically adjusts the position of basis in runoff by buoyancy of water, and on runoff section, the relative position of each point is fixed all the time; Two is go out to flow feature according to thin-wall hole, establishes the orifice size calculation mode of water inlet device tube wall, ensure that on runoff section, each hole inflow is consistent.The utility model solves the sampling of automatic runoff and sediment sample, single probe must be placed in bottom runoff and cause containing the higher problem of husky measurement result, Multi probe fixed in position changes the low-water level probe exposure caused by flood level, measuring position is not fixed, thus causes the problem that measurement silt content error is larger.This apparatus cost is cheap, by runoff buoyancy-driven, without the need to additionally providing power and electric power, for use manpower and material resources sparingly and to improve runoff silt content accuracy of observation significant, the water inlet filtering head of pump drawing type runoff and sediment self-actuated sampler can be replaced, each water and soil conservation value website popularization in the whole nation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 illustrates structural representation of the present utility model.
Fig. 2 illustrates the partial structurtes schematic diagram of ball float of the present utility model and water inlet pipe.
Fig. 3 illustrates ball float of the present utility model and water inlet pipe structure schematic diagram.
Fig. 4 illustrates the structural representation of base of the present utility model and transverse tube.
Embodiment
In order to be illustrated more clearly in the utility model, below in conjunction with preferred embodiments and drawings, the utility model is described further.Parts similar in accompanying drawing represent with identical Reference numeral.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive below, protection domain of the present utility model should do not limited with this.
As shown in Figure 1, the complete dark section water inlet device of floating type runoff and sediment sampling comprises base 1, water inlet pipe 2, ball float 3 and transverse tube 4.
As shown in Figures 2 and 3, ball float 3 is hemispheric shape, material is EVA resilient material, ball float 3 is arranged on one end of water inlet pipe 2, water inlet pipe 2 is concordant with the bottom of ball float 3, and 5mm is exposed on the top of water inlet pipe 2, by the top closure of rubber plug by water inlet pipe 2, foreign material silting situation whether is had, the other end of water inlet pipe 2 is provided with external thread for checking in pipe during routine use.
As shown in figures 1 and 3, water inlet pipe 2 is made for PPR pipe, for design runoff maximum water depth 100cm, the length of water inlet pipe 2 is 115cm, and top 15cm is for installing ball float 3, and all the other 100cm are used for boring, at water inlet pipe 2 back to the equidistant perforate in side, inflow direction, 1st pitch-row from pipe top 50cm, bore dia 4mm, after this every pitch of holes 100mm.Bore dia adopts following formula to determine:
In formula, R
nrepresent the n-th bore diameter, R
1represent the 1st bore diameter, l represents the distance of the n-th boring to the 1st hole, and L represents the length that water inlet pipe length is submerged in water, and namely water inlet pipe total length deducts length shared by ball float, V
1represent the 1st drill hole runoff velocity, S
1represent the runoff cross-sectional area of the 1st boring representative, V
1represent the n-th drill hole runoff velocity, S
1represent the runoff cross-sectional area of the n-th boring representative, the measuring structure slower to flow rate of water flow such as runoff weirs, does not consider v, S value, then:
The present embodiment median pore diameter is as shown in the table:
As shown in Figure 4, the bearing that transverse tube 4 is arranged by its two ends is rotating to be arranged on base 1, base 1 for the length of side be the square corrosion resistant plate of 200mm, thickness of slab 4mm.The middle position of transverse tube 4 is provided with the thread 41 for being connected with water inlet pipe 2, vertical being threaded connection with the other end of water inlet pipe 2 of transverse tube 4, transverse tube 4 for caliber be the stainless-steel tube of 15mm, one end of transverse tube 4 is closed, and the other end is connected with the water inlet pipe of sampler.
During sampling, one end of water inlet pipe 2 floats on runoff water face under the effect of ball float, and the other end of base 1, transverse tube 4 and water inlet pipe 2 sinks to bottom runoff, and water inlet pipe 2 according to the depth of water unmanaged flexibility of runoff, can gather the sample of the complete dark section of runoff simultaneously.Go out to flow orifice size calculation formula (1) and (2) of feature foundation according to thin-wall hole, ensure that the inflow in each hole on runoff section is consistent.
The word in description orientation adopted herein " on ", D score, " left side ", " right side ", " front ", " afterwards " etc. are all aspects in order to illustrate based on the orientation in accompanying drawing shown in drawing, in actual device, these orientation may be different due to the disposing way of device.
Obviously; above-described embodiment of the present utility model is only for the utility model example is clearly described; and be not the restriction to embodiment of the present utility model; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to the technical solution of the utility model the apparent change of extending out or variation be still in the row of protection domain of the present utility model.
Claims (9)
1. the complete dark section water inlet device of floating type runoff and sediment sampling, it is characterized in that, comprise: base, one end close the rotating ball float being arranged on the water inlet pipe on described base and being arranged on described water inlet pipe blind end of the other end, described ball float can make on the blind end of water inlet pipe bubbles through the water column, and described water inlet pipe is equally spaced on the tube wall of water (flow) direction side offers several holes.
2. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 1, is characterized in that: the aperture in the hole that described water inlet pipe is offered calculates according to the following formula:
R in formula
nrepresent the diameter in the n-th hole, R
1represent the diameter in the 1st hole, l represents the distance of the n-th hole to the 1st hole, and L represents the length that water inlet pipe submerges in water.
3. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 2, is characterized in that: the length of described water inlet pipe is greater than the maximum stage 15cm of runoff.
4. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 1, it is characterized in that: what the other end of described water inlet pipe was vertical is provided with a transverse tube be communicated with it, described transverse tube is arranged on described base by bearing is rotating, and one end of described transverse tube is closed the other end and is connected with sampler.
5. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 4, is characterized in that: described water inlet pipe is connected with transverse tube by screw thread.
6. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 4, is characterized in that: described transverse tube is stainless-steel tube.
7. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 4, is characterized in that: described water inlet pipe is PPR pipe, and caliber is greater than the water inlet of sampler.
8. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 1, is characterized in that: described ball float is crash-resistant EVA elasticity ball float.
9. the complete dark section water inlet device of floating type runoff and sediment sampling according to claim 1, is characterized in that: described base is corrosion resistant plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031634.XU CN205228873U (en) | 2015-12-11 | 2015-12-11 | Floating runoff sediment load sampling is dark section water inlet device entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031634.XU CN205228873U (en) | 2015-12-11 | 2015-12-11 | Floating runoff sediment load sampling is dark section water inlet device entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205228873U true CN205228873U (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521031634.XU Withdrawn - After Issue CN205228873U (en) | 2015-12-11 | 2015-12-11 | Floating runoff sediment load sampling is dark section water inlet device entirely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205228873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764591A (en) * | 2017-09-30 | 2018-03-06 | 黄河流域水土保持生态环境监测中心 | A kind of small watershed bayonet socket station runoff and sediment automatic sampling system |
| CN108107172A (en) * | 2017-12-28 | 2018-06-01 | 中国科学院测量与地球物理研究所 | Rice field nitrogen phosphorus runoff is lost in monitoring and prior-warning device and its application method |
-
2015
- 2015-12-11 CN CN201521031634.XU patent/CN205228873U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764591A (en) * | 2017-09-30 | 2018-03-06 | 黄河流域水土保持生态环境监测中心 | A kind of small watershed bayonet socket station runoff and sediment automatic sampling system |
| CN108107172A (en) * | 2017-12-28 | 2018-06-01 | 中国科学院测量与地球物理研究所 | Rice field nitrogen phosphorus runoff is lost in monitoring and prior-warning device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20181204 |
|
| AV01 | Patent right actively abandoned |