CN203083991U - Endogenous release device for nutritive salt of sediment - Google Patents

Endogenous release device for nutritive salt of sediment Download PDF

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Publication number
CN203083991U
CN203083991U CN 201320081460 CN201320081460U CN203083991U CN 203083991 U CN203083991 U CN 203083991U CN 201320081460 CN201320081460 CN 201320081460 CN 201320081460 U CN201320081460 U CN 201320081460U CN 203083991 U CN203083991 U CN 203083991U
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CN
China
Prior art keywords
sediment
nutritive salt
outer tube
pipe
endogenous
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Expired - Fee Related
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CN 201320081460
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Chinese (zh)
Inventor
李海英
张永生
冯顺新
冯时
靳甜甜
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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Priority to CN 201320081460 priority Critical patent/CN203083991U/en
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Publication of CN203083991U publication Critical patent/CN203083991U/en
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Abstract

The utility model relates to an endogenous release device for nutritive salt of sediment. The endogenous release device comprises an outer tube, a columnar bottom sampler inner tube, an inner tube upper fixing plate, an inner tube lower fixing plate, a base plate, a pedestal and a sealed cover, wherein the columnar bottom sampler inner tube is contained in the outer tube; the inner tube upper fixing plate and the inner tube lower fixing plate are respectively sleeved at the upper part and the lower part of the columnar bottom sampler inner tube and are abutted between the outer tube and the columnar bottom sampler inner tube; the base plate and the pedestal are arranged on the bottom of the outer tube; and the sealed cover is screwed on the pedestal. According to the Endogenous release device for the nutritive salt of the sediment, not only can variation of water level be stimulated, but also the in-situ bottom mud is guaranteed, and the overlying water is not obviously agitated, thus being suitable for the research on the endogenous release speed and flux of the nutritive salt during the variation of the water level.

Description

The endogenous releasing means of a kind of sediment nutritive salt
[technical field]
The utility model relates to a kind of Hu Ku of simulation falling zone or reaches the device of seashore beach endogenous release of sediment when SEA LEVEL VARIATION, is specifically related to the endogenous releasing means of a kind of sediment nutritive salt.
[background technology]
SEA LEVEL VARIATION often takes place in Jian Ba Hu Ku and coastal zone, and for example the water level of Three Gorges Reservoir is between 145~175m.After the SEA LEVEL VARIATION, water environment such as illumination, the temperature factor also changes thereupon in the water body, and the variation of envirment factor often causes the endogenous rate of release of the nutritive salt in the sediment and discharges the change of flux.
The endogenous rate of release of nutritive salt and release flux are the key factors that influences storehouse, lake eutrophication process, and the two is the important subject of storehouse, lake eutrophication.At present the main way of this two aspects research contents of research has two kinds: one is got sediment with the grab type bottom sampler, its two, with column bottom sampler collection sediment, take back the simulation test that correlative study is done in the laboratory then respectively.Sediment of collecting with these two kinds of methods and the simulation test of carrying out can satisfy the endogenous rate of release of some water levels nutritive salt when unconverted and discharge the research of flux, but Hu Ku for SEA LEVEL VARIATION, it is powerless that this method just seems, because this method can't be simulated the original position SEA LEVEL VARIATION to the endogenous rate of release of nutritive salt and the influence of release flux.
Therefore, for avoiding above-mentioned technical matters, the necessary endogenous releasing means of sediment nutritive salt that a kind of novel structure is provided is to overcome described defective of the prior art.
[utility model content]
For addressing the above problem, the purpose of this utility model is to provide a kind of and both can changes by mimic water-depth, ensures that again original position bed mud and overlying water do not have the endogenous releasing means of sediment nutritive salt of obvious stirring.
For achieving the above object, the technical scheme that the utility model is taked is: the endogenous releasing means of a kind of sediment nutritive salt, and it comprises pipe, interior pipe upper mounted plate, interior pipe bottom plate, backing plate, base and gland bonnet in outer tube, the column bottom sampler; Wherein, pipe is contained in the outer tube in the described column bottom sampler; Pipe upper mounted plate and interior pipe bottom plate is set in the upper and lower of pipe in the column bottom sampler respectively in described, and interior pipe upper mounted plate and interior pipe bottom plate are connected in outer tube and the column bottom sampler between the pipe; Described backing plate, base are arranged on the bottom of outer tube; Described gland bonnet is screwed together on the base.
The endogenous releasing means of sediment nutritive salt of the present utility model further is set to: be provided with a water intaking valve and an outlet valve in described outer tube.
The endogenous releasing means of sediment nutritive salt of the present utility model further is set to: be provided with an O-ring seal in described gland bonnet, the sealing circle is connected to the bottom of backing plate.
The endogenous releasing means of sediment nutritive salt of the present utility model further is set to: the pipe bottom plate is provided with some through holes in described.
The endogenous releasing means of sediment nutritive salt of the present utility model also can be set to: described backing plate is the steel backing plate.
Compared with prior art, the utlity model has following beneficial effect: the endogenous releasing means of sediment nutritive salt of the present utility model both can change by mimic water-depth, ensure that again original position bed mud and overlying water do not have obvious stirring, be applicable to the endogenous rate of release of time nutritive salt of SEA LEVEL VARIATION and the research of release flux.
[description of drawings]
Fig. 1 is the synoptic diagram of the endogenous releasing means of sediment nutritive salt of the present utility model.
[embodiment]
See also shown in the Figure of description 1, the utility model is the endogenous releasing means of a kind of sediment nutritive salt, its by manage 2 in outer tube 1, the column bottom sampler, several parts such as interior pipe upper mounted plate 3, interior pipe bottom plate 4, backing plate 5, base 6 and gland bonnet 7 form.
Wherein, be provided with a water intaking valve 8 and an outlet valve 9 in described outer tube 1.
Pipe 2 is contained in the outer tube 1 in the described column bottom sampler.
Pipe upper mounted plate 3 and interior pipe bottom plate 4 is set in the upper and lower of pipe 3 in the column bottom sampler respectively in described, and interior pipe upper mounted plate 3 and interior pipe bottom plate 4 are connected in outer tube 1 and the column bottom sampler between the pipe 2.Pipe bottom plate 4 is provided with some through holes 10 in described.
Described backing plate 5, base 6 are arranged on the bottom of outer tube 1.Described backing plate 5 is a steel backing plate 5.
Described gland bonnet 7 is screwed together on the base 6, is provided with an O-ring seal 11 in sealing lid 7, and sealing circle 11 is connected to the bottom of backing plate 5.
The endogenous releasing means of sediment nutritive salt of the present utility model is as follows in using method: after the column bottom sampler is adopted mud, pipe 2 in the column bottom sampler is taken out in the column bottom sampler, because pipe 2 bottoms are sediments in the column bottom sampler, top is full of water body, rubber stopper (not shown) is airtight in the top, pipe 2 inside do not have gas in the whole column bottom sampler, because atmospheric effect, the bed mud and the overlying water of pipe 2 inside can not overflow from its lower end in the column bottom sampler, therefore, inner sample is all kept intact; Put pipe 2 in the column bottom sampler into outer tube 1 from the bottom of outer tube 1; Utilize gland bonnet 7 that outer tube 1 bottom is sealed again; Inject the lake water or the seawater of in-situ acquisition at last by water intaking valve 8 and outlet valve 9 regulation and control, manage 2 water levels in water level and the column bottom sampler and form water-head this moment, but pipe 2 lower ends are not sealings in outer tube 1, the column bottom sampler, therefore can be interconnected, but because pipe 2 bottoms are original position bed muds in the column bottom sampler, pipe 2 inside and outside water levels have only slow variation in the column bottom sampler, and therefore also regulation and control water inlet water outlet mutually of water intaking valve 8 and outlet valve 9 simultaneously can satisfy SEA LEVEL VARIATION and the endogenous releasing research that causes.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within made any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.

Claims (5)

1. the endogenous releasing means of sediment nutritive salt is characterized in that: comprise pipe, interior pipe upper mounted plate, interior pipe bottom plate, backing plate, base and gland bonnet in outer tube, the column bottom sampler; Wherein, pipe is contained in the outer tube in the described column bottom sampler; Pipe upper mounted plate and interior pipe bottom plate is set in the upper and lower of pipe in the column bottom sampler respectively in described, and interior pipe upper mounted plate and interior pipe bottom plate are connected in outer tube and the column bottom sampler between the pipe; Described backing plate, base are arranged on the bottom of outer tube; Described gland bonnet is screwed together on the base.
2. the endogenous releasing means of sediment nutritive salt as claimed in claim 1 is characterized in that: be provided with a water intaking valve and an outlet valve in described outer tube.
3. the endogenous releasing means of sediment nutritive salt as claimed in claim 1 is characterized in that: be provided with an O-ring seal in described gland bonnet, the sealing circle is connected to the bottom of backing plate.
4. the endogenous releasing means of sediment nutritive salt as claimed in claim 1 is characterized in that: the pipe bottom plate is provided with some through holes in described.
5. the endogenous releasing means of sediment nutritive salt as claimed in claim 1 is characterized in that: described backing plate is the steel backing plate.
CN 201320081460 2013-02-22 2013-02-22 Endogenous release device for nutritive salt of sediment Expired - Fee Related CN203083991U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320081460 CN203083991U (en) 2013-02-22 2013-02-22 Endogenous release device for nutritive salt of sediment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320081460 CN203083991U (en) 2013-02-22 2013-02-22 Endogenous release device for nutritive salt of sediment

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CN203083991U true CN203083991U (en) 2013-07-24

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360014A (en) * 2014-09-29 2015-02-18 中国环境科学研究院 Device to simulate influence of water level variation on release risk of sediments of nitrogen, phosphorus and heavy metal
CN105974057A (en) * 2016-05-03 2016-09-28 中国环境科学研究院 Experiment apparatus used for researching technology for preventing and controlling nutrition salt release of deposits, and method thereof
CN109490084A (en) * 2018-11-29 2019-03-19 中国海洋大学 A kind of simulated waves act on the in-situ testing device and method of internal contamination burst size in lower marine sediment
CN113812336A (en) * 2021-09-18 2021-12-21 南昌大学 Method for evaluating whether lake sediment is suitable for anchoring and growing submerged plants

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360014A (en) * 2014-09-29 2015-02-18 中国环境科学研究院 Device to simulate influence of water level variation on release risk of sediments of nitrogen, phosphorus and heavy metal
CN104360014B (en) * 2014-09-29 2016-04-06 中国环境科学研究院 Mimic water-depth changes the device to sediment nitrogen phosphorus and heavy metal release venture influence
CN105974057A (en) * 2016-05-03 2016-09-28 中国环境科学研究院 Experiment apparatus used for researching technology for preventing and controlling nutrition salt release of deposits, and method thereof
CN109490084A (en) * 2018-11-29 2019-03-19 中国海洋大学 A kind of simulated waves act on the in-situ testing device and method of internal contamination burst size in lower marine sediment
CN113812336A (en) * 2021-09-18 2021-12-21 南昌大学 Method for evaluating whether lake sediment is suitable for anchoring and growing submerged plants

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130724

Termination date: 20140222