CN209814828U - Device suitable for long-term storage original state groundwater - Google Patents
Device suitable for long-term storage original state groundwater Download PDFInfo
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- CN209814828U CN209814828U CN201822171500.8U CN201822171500U CN209814828U CN 209814828 U CN209814828 U CN 209814828U CN 201822171500 U CN201822171500 U CN 201822171500U CN 209814828 U CN209814828 U CN 209814828U
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Abstract
The utility model belongs to the field of hydrogeology and high-level waste geology disposal, in particular to a device which is suitable for storing undisturbed groundwater for a long time; the water-saving and anti-freezing tank mainly comprises a stainless steel tank body, a lining coating, a water inlet pipe, a flange connecting pipe, a flange, a water inlet valve connecting pipe, a water inlet valve, a pressure gauge, a water outlet valve joint, a water outlet valve, a sealing gasket and the like. The invention fully considers the characteristic that the volatile components in the underground water are easy to be polluted by the atmosphere, effectively avoids the contact of the air and the underground water sample, and can preserve the collected undisturbed underground water sample for a long time; the device can be directly used for developing indoor long-term tests, is simple and convenient to operate, can meet the analysis and test requirements of certain radioisotopes with large sample demand, and overcomes the problem of field sampling.
Description
Technical Field
The invention belongs to the field of hydrogeology and high-level waste geological disposal, and particularly relates to a device suitable for storing undisturbed underground water for a long time.
Background
During the period from the completion of the collection to the analysis and test of the groundwater sample, certain physicochemical parameters of the water sample can be changed due to the change of environmental conditions. Such as oxidation of ferrous iron and sulfides by oxygen in the air, depolymerization of polymers, polymerization of monomeric compounds, dissolution of colloids, organic constituents, etc. In addition, when some variable components such as certain metal ions, carbonate (hydrogen) radicals, oxidation-reduction potential and other water chemical indexes sensitive to air are used, the variable components are easily influenced by air in the field test process and are difficult to accurately determine. Particularly in the field of high-level waste geological disposal, when long-term indoor tests such as a water-rock action test, a bentonite heat-water-force-chemical multi-field coupling test, a colloid test and the like are required to be carried out for exploring the evolution of underground water environment under the condition of a disposal warehouse, the long-term storage of undisturbed underground water becomes a bottleneck problem whether the tests can be carried out or not. Therefore, in order to minimize errors in the groundwater sample analysis test, a proper groundwater holding container must be properly selected.
In field hydrogeological investigation, underground water samples are generally stored by high-density polyethylene plastic bottles, borosilicate glass bottles, polypropylene plastic bottles and the like. When rare gas isotope analysis test sampling overflows from underground water, extraction copper pipes are commonly used for collection, the method has good sealing effect, but the collection amount is extremely limited, and certain radioactive isotope analysis test requirements with large sample demand cannot be met, such as underground water234U/238U、222Rn、81Kr, and the like. The conventional underground water conservation device has the main defects that: short storage time, incapability of accurately measuring characteristic parameters such as metal ions, colloids and rare gases in underground water, incapability of directly carrying out indoor related tests such as water-rock action and the like, and easiness in atmospheric pollution and the like.
The invention provides a device suitable for storing undisturbed underground water for a long time. The characteristics that the volatile components in deep underground water are easily polluted by the atmosphere are fully considered, the air can be furthest prevented from contacting with the underground water, and the collected original-state underground water sample can be stored for a long time. And the method can be directly used for developing long-term indoor tests such as water-rock action, bentonite heat-water-force-chemical multi-field coupling tests and the like, and can meet certain radioisotope analysis and test requirements with large sample demand.
Disclosure of Invention
The invention aims to provide a device suitable for storing undisturbed underground water for a long time. The device can avoid groundwater sample and air contact to the at utmost, can directly be used for developing indoor relevant tests such as water-rock effect simultaneously, satisfies some radioisotope analysis test requirements that the sample demand is great.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a device suitable for storing undisturbed groundwater for a long time mainly comprises a stainless steel tank body, a lining coating, a handle, a water inlet pipe, a flange connecting pipe, a flange, a bolt assembly, a water inlet valve connecting pipe, a water inlet valve, a pressure gauge, a water outlet valve joint, a water outlet valve, a sealing gasket, a top protection cover and the like.
The device suitable for storing undisturbed groundwater for a long time is characterized in that the tank body is made of high-strength corrosion-resistant stainless steel, the main body of the tank body is cylindrical, the top end and the bottom end of the cavity are arc-shaped, the tank body and the flange connecting pipe are welded by argon arc welding, and the outer surface of the tank body is mechanically polished to be No. 240.
The device for storing undisturbed underground water for a long time is characterized in that the inner surface of the tank body is lined with the high-density polyethylene coating or the polytetrafluoroethylene coating, the high-density polyethylene coating is suitable for analysis projects except organic matters, and the polytetrafluoroethylene coating is suitable for all analysis projects.
According to the device suitable for storing undisturbed groundwater for a long time, the flange and the flange connecting pipe are fastened by adopting the high-strength corrosion-resistant high-temperature-resistant sealing sheet and the bolt assembly, the bolt holes are uniformly distributed in the span, and the flange is detachable, so that field transportation is facilitated.
The device is suitable for storing undisturbed underground water for a long time, the flange is connected with the water inlet valve connecting pipe through welding, a joint edge is welded between the flange and the water outlet valve joint, and the joint edge and the water outlet valve joint are rotated into a whole through threads.
The invention relates to a device suitable for storing undisturbed underground water for a long time.
The invention relates to a device suitable for storing undisturbed underground water for a long time.
As a further preferable scheme of the invention, the periphery of the tank body can be composed of inner and outer layers of stainless steel, the inner layer and the outer layer are combined together by utilizing a welding technology, and air in an interlayer between the inner layer and the outer layer is pumped out by utilizing a vacuum technology so as to achieve the effect of vacuum heat preservation and reduce heat exchange with the surrounding environment.
The invention has the beneficial effects that:
the device for storing undisturbed groundwater for a long time fully considers the characteristic that volatile components in groundwater are easily polluted by atmosphere, effectively avoids the contact of air and groundwater samples, and can store the collected undisturbed groundwater samples for a long time.
The device for storing undisturbed underground water for a long time can be directly used for long-term tests such as water-rock action in a development room and the like, and is convenient to operate.
The device is suitable for storing undisturbed underground water for a long time, can meet the analysis and test requirements of certain radioisotopes with large sample demand, and overcomes the problem of field sampling.
The device suitable for storing undisturbed groundwater for a long time is detachable in the flange part, and the top of the device is provided with the protective cover, so that the device is suitable for being used under extreme climatic conditions such as drought desert and the like.
Drawings
FIG. 1 is a schematic cross-sectional view of an apparatus for storing undisturbed groundwater for a long period according to the present invention;
FIG. 2 is a schematic top view of an apparatus for long-term storage of undisturbed groundwater according to the present invention;
in the figure: the device comprises a stainless steel tank body 1, a lining high-density polyethylene or polytetrafluoroethylene coating 2, a handle 3, a water inlet pipe 4, a flange joint 5, a bolt assembly 6, a flange 7, a water inlet valve joint 8, a water inlet valve 9, a pressure gauge 10, a water outlet valve joint 11, a water outlet valve 12, a sealing gasket 13, a pressure gauge joint 14, a top protection cover 15 and a base 16.
Detailed Description
The present invention provides a device for storing undisturbed groundwater for a long time, which is described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a high density polyethylene or polytetrafluoroethylene coating 2 is lined in a stainless steel tank 1, an outlet at the lower end of a water inlet pipe 4 is arranged at the bottommost part of the right center of the tank 1, the tank 1 is connected with a flange joint pipe 5 through welding, a flange 7 is fastened with the flange joint pipe 5 through a bolt assembly 6, a high-strength corrosion-resistant high-temperature-resistant sealing sheet 13 is clamped between the flange and the flange, an inlet valve joint pipe 8 is welded with the flange 7 through argon arc welding, the upper part of the inlet valve joint pipe 8 is connected with an inlet valve 9 through an external thread form, a joint edge is welded between the flange 7 and a pressure gauge joint 14 and rotates with the pressure gauge joint 14 into a whole through a thread, a sealing gasket 13 is arranged between the joint edge and the pressure gauge joint 14, the pressure gauge joint 14 and an outlet valve joint 11 rotate with a thread.
A base 16 is welded on the lower portion of the stainless steel tank body 1, a handle 3 is welded in the middle of the outer side of the stainless steel tank body, a top protection cover 15 is fastened with the tank body 1 through bolts, and the top protection cover 15 completely covers the pressure gauge 10 and the flange 7.
As shown in fig. 2, the bolt assemblies 6 are uniformly distributed on the flange 7 across the center, and 8 groups of bolt assemblies are installed in the embodiment and can be changed according to actual needs. The inlet valve 9 is located at the center line of the flange 7, and the caliber of the inlet valve and the outlet valve is 1/4' in the example, so as to reduce the risk of air contacting with underground water.
If the device suitable for storing undisturbed underground water for a long time is used for carrying out indoor related tests, the use steps are as follows:
1) the high-purity nitrogen cylinder is connected with the water outlet valve 12.
2) The relevant test equipment is connected with the water inlet valve 9, and a flow control valve and an electronic flowmeter can be connected in the middle for further controlling the flow.
3) And (3) opening the water outlet valve 12, the water inlet valve 9 and the high-purity nitrogen cylinder valve in sequence to carry out indoor related tests, and adjusting the use of the underground water sample by adjusting the high-purity nitrogen cylinder valve and the flow control valve in the test process.
4) After the test is finished, the valve of the high-purity nitrogen cylinder, the water inlet valve 9 and the water outlet valve 12 are closed in sequence.
The present invention has been described in detail with reference to the drawings and the embodiments, but the present invention is not limited to the above embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the technical spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (6)
1. The utility model provides a device suitable for long-term storage original state groundwater which characterized in that: the device comprises a stainless steel tank body (1), a water inlet pipe (4), a flange connecting pipe (5), a flange (7), a water inlet valve (9), a pressure gauge (10), a water outlet valve (12), a sealing gasket (13), a top protective cover (15) and a base (16); the stainless steel tank body (1) is lined with a high-density polyethylene or polytetrafluoroethylene coating (2), a base (16) is welded on the lower portion of the stainless steel tank body (1), a handle (3) is welded in the middle of the outer side, a protective cover (15) is arranged on the top of the stainless steel tank body, an outlet at the lower end of a water inlet pipe (4) is arranged at the bottommost portion of the center of the tank body (1), bolt assemblies (6) are uniformly distributed on a flange (7) in a midspan mode, and a water inlet valve (9) is located at the center line of the flange (.
2. An apparatus adapted for long-term storage of undisturbed groundwater according to claim 1, wherein: the flange (7) and the flange adapter (5) are fastened through bolts.
3. An apparatus adapted for long-term storage of undisturbed groundwater according to claim 2, wherein: the stainless steel tank body (1) and the flange connecting pipe (5), and the water inlet valve connecting pipe (8) and the flange (7) are welded by argon arc welding.
4. A device adapted for long term storage of undisturbed groundwater according to claim 3 wherein: the pressure gauge joint (14) and the water outlet valve joint (11), the water inlet valve connecting pipe (8) and the water inlet valve (9), and the water outlet valve joint (11) and the water outlet valve (12) are connected into a whole through thread rotation.
5. An apparatus adapted for long-term storage of undisturbed groundwater according to claim 2 or 3 wherein: the flange (7) and the pressure gauge joint (14) are welded to form an edge, a sealing gasket (13) is arranged between the edge and the pressure gauge joint (14), and the edge and the pressure gauge joint (14) rotate to form a whole through threads.
6. An apparatus adapted for long-term storage of undisturbed groundwater according to claim 5, wherein: and sealing gaskets (13) with high strength, corrosion resistance and high temperature resistance are arranged between the flange (7) and the flange connecting pipe (5) and between the pressure gauge (10) and the pressure gauge joint (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822171500.8U CN209814828U (en) | 2018-12-24 | 2018-12-24 | Device suitable for long-term storage original state groundwater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822171500.8U CN209814828U (en) | 2018-12-24 | 2018-12-24 | Device suitable for long-term storage original state groundwater |
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| Publication Number | Publication Date |
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| CN209814828U true CN209814828U (en) | 2019-12-20 |
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| CN201822171500.8U Active CN209814828U (en) | 2018-12-24 | 2018-12-24 | Device suitable for long-term storage original state groundwater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466878A (en) * | 2018-12-24 | 2019-03-15 | 核工业北京地质研究院 | A kind of device suitable for long term storage original state underground water |
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2018
- 2018-12-24 CN CN201822171500.8U patent/CN209814828U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466878A (en) * | 2018-12-24 | 2019-03-15 | 核工业北京地质研究院 | A kind of device suitable for long term storage original state underground water |
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