CN202210040U - Negative pressure extraction type in-situ airtight water sampling technology - Google Patents
Negative pressure extraction type in-situ airtight water sampling technology Download PDFInfo
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- CN202210040U CN202210040U CN2011202599442U CN201120259944U CN202210040U CN 202210040 U CN202210040 U CN 202210040U CN 2011202599442 U CN2011202599442 U CN 2011202599442U CN 201120259944 U CN201120259944 U CN 201120259944U CN 202210040 U CN202210040 U CN 202210040U
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Abstract
A negative pressure extraction type in-situ airtight water collection technology relates to a water collection technology for directly collecting bottom water or sediment pore water in situ and recovering water in an airtight manner, and belongs to the field of detection of substances or objects. The technology utilizes the negative pressure formed by the static pressure of the normal pressure relative to the water layer at the bottom to drive the piston at the bottom end of the water storage chamber of the water collecting bottle to move upwards, and extracts the water at the water inlet to enter the water storage chamber. After water collection, the sampling bottle is lifted and recovered, and the buffer chamber keeps the balance between the water sample in the water storage chamber and the external pressure and stores gas possibly released due to pressure reduction. Compared with the traditional method of collecting sediments to a deck by using a sampler and then extracting or squeezing out pore water, the technology has the advantage that the chemical properties of the pore water are well preserved. And the water is collected by adopting the negative pressure extraction principle, so that the equipment manufacturing difficulty and cost are reduced, and the durability and the economy are improved compared with the scheme of using an electromagnetic valve. The utility model discloses can be applied to fields such as seabed resource investigation and exploitation, environmental monitoring under water.
Description
Affiliated technical field
The utility model relates to the fluid in-situ acquisition technology of underwater environment and resource detection, belongs to the field of detecting of material or object, Patent classificating number G01V.
Background technology
Underwater environment and resource detection usually need be detected by geochemistry sign unusual to various gas, water and that derive from.Particularly keep a large amount of useful seabed geochemical informations in the sedimental pore water of the shallow table in bottom water and seabed, thereby become the important object of detection.The technology of collection bottom water that development is practical and interstitial water is very necessary.
Mostly be both at home and abroad at present with sampling thief sediment to be collected earlier to extract or squeeze out pore water on the research ship again on the deck.Gather sediment to the deck with sampling thief; Because temperature and pressure condition acute variation; Possibly be dissolved in the physicochemical change such as escape of gas in the sediment pore water, gather pore water again and carry out tests such as Water Soluble Gas, the result is just untrue; Therefore, be necessary to develop the technology that deposit pore water in-situ airtightness is gathered.Had and used the original position of solenoid control to adopt wetting system, required the empty and anti-seawater corrosion unshakable in one's determination of the necessary high pressure resistant while fidelity of solenoid valve, technical difficulty is big, and the valve volume is difficult for dwindling, the durability of equipment, and economy is in urgent need to be improved.
Summary of the invention
The purpose of the utility model is to provide a kind of utilization negative pressure extracting principle directly to gather bottom water or sediment pore water in the original place, and airtight preservation rises to the water technology of adopting of research ship.
The technical scheme of the utility model is: in an airtight collecting bottle housing, a reservoir chamber is arranged, between water inlet and reservoir chamber, can add the micro porous filtration core before water check valve of installation, the water inlet, the reservoir chamber bottom is an extracting piston; The other housing of its side is opened a water delivering orifice; Opening an external pressure intake on the reservoir chamber upper end wall, is surge chamber on the reservoir chamber, and both separate through piston; Other opening in shell of surge chamber upper side and exterior, housing topmost is a plug.An external pressure source is made up of water tank and negative pressure source, and water tank is filled clear water, and can open to the outside world is that pressure equals environmental pressure, or adds low hydraulic pressure again; Negative pressure source is filled air or is vacuumized.Sounding bottle external pressure intake is selected to insert water tank or negative pressure source through a 3-position-3-way valve, or closes.
Sampling bottle is before following hydromining appearance, and the reservoir chamber piston is in the bottom, the equal and external communications of surge chamber and reservoir chamber.Sounding bottle external pressure intake inserts negative pressure source after arriving the sampling location, and piston moves upward under negative pressure drives, and the water of extracting water inlet passed through filter core; Back down water check valve and get into reservoir chamber; Up to piston arrives reservoir chamber top, receive the surge chamber bottom piston and stop, adopt the water process and finish.Handle the 3-position-3-way valve this moment, earlier sounding bottle external pressure intake is connected water tank, close the external pressure intake again, the water storage intraventricular pressure equals to adopt the water depth hydrostatic pressure.With proposing recovery on the sampling bottle, along with the depth of water reduces, the surge chamber upper pressure reduces with external pressure, and the higher water of pressure promotes to move on the piston of surge chamber bottom in the reservoir chamber, keeps the balance with external pressure.Water Soluble Gas in the pore water sample also is able to preserve because of the gas that pressure descends and possibly discharge.
The utility model can not lose because of the temperature and pressure condition changing in the last process of mentioning the deck because the airtight acquisition technique of above-mentioned original position that adopts has guaranteed to collect bottom water or sediment pore water and has been dissolved in gas wherein.Than with sampling thief sediment being adopted the classic method that pore water is extracted on the deck again, sample chemical character is intact.And adopt negative pressure extracting principle to adopt water; Exempt existing use solenoid control original position and adopted empty specific (special) requirements and the anti-seawater corrosion unshakable in one's determination of the necessary high pressure resistant while fidelity of solenoid valve in the wetting system; The valve volume such as is difficult for dwindling at technical barrier; Thereby reduced device fabrication difficulty and cost, improved the durability of equipment, economy.
Description of drawings
Fig. 1 is the negative pressure extracting formula original position air-tight water-sampling bottle structural drawing of the utility model, and Fig. 2 is that the airtight water pressure source of adopting of negative pressure extracting formula original position connects process flow diagram.M-housing among the figure, A-filtering layer, B-retaining valve, C-piston, D-reservoir chamber, E-external pressure intake, F-surge chamber, G-plug, H-water delivering orifice, K-3-position-3-way valve, P-pressure source, P1-water tank, P2-negative pressure source
Embodiment
Be elaborated below in conjunction with the water process of adopting of accompanying drawing to the utility model.
Fig. 1 is the structural drawing of the negative pressure extracting formula original position air-tight water-sampling bottle of the utility model; In an airtight collecting bottle housing M, a reservoir chamber D is arranged, between water inlet and reservoir chamber, can add micro porous filtration core A before water check valve B of installation, the water inlet, the reservoir chamber bottom is an extracting piston C; The other housing of its side is opened a water delivering orifice H; Opening an external pressure intake E on the reservoir chamber upper end wall, is surge chamber F on the reservoir chamber, separates through piston with reservoir chamber; Other opening in shell of surge chamber upper side and exterior, housing topmost is plug G.
Fig. 2 is that the pressure source of the utility model connects process flow diagram, and an external pressure source P is made up of water tank P1 and negative pressure source P2, and P1 fills clear water, and can open to the outside world is that pressure equals environmental pressure, maybe can add about low hydraulic pressure such as tap water pressure 0.3MPa; P2 fills air or vacuumizes.Sounding bottle external pressure intake E selects cut-in pressure source P1 or P2 through a 3-position-3-way valve K, or closes.
Sampling bottle is at first opened water delivering orifice H on the deck, and external pressure intake E is connected water tank P1, and P1 inserts tap water and shifts piston onto the reservoir chamber bottom, and sealing H cancels tap water pressure and makes P1 externally be communicated with.Equipment descends water then, the equal and external communications of surge chamber F and reservoir chamber D.Sounding bottle external pressure intake E inserts negative pressure source P2 after arriving the sampling location; Piston moves upward under negative pressure drives; The water of extracting water inlet saw through filter core A, backed down water check valve B and got into reservoir chamber D, up to piston arrives reservoir chamber top; Receive the surge chamber bottom piston and stop, adopt the water process and finish.Handle 3-position-3-way valve K this moment, earlier sounding bottle external pressure intake E is connected water tank P1, close external pressure intake E again, press in the reservoir chamber D to equal to adopt the water depth hydrostatic pressure.With proposing recovery on the sampling bottle, along with the depth of water reduces, surge chamber F upper pressure reduces with external pressure, and the higher water of pressure promotes to move on the piston of surge chamber F bottom among the reservoir chamber D, keeps the balance with external pressure.Water Soluble Gas in the pore water sample also is able to preserve because of the gas that pressure descends and possibly discharge.
Below introduce the use that the utility model is applied in the airtight sampling of underwater water sample original position:
(1) sampling bottle, external pressure source P1 and P2 and 3-position-3-way valve K etc. are integrated under water on the sample devices, equipment is equipped with necessary flip flop equipment and 3-position-3-way valve drive simultaneously;
(2) on the deck, at first open sampling bottle water delivering orifice H, again external pressure intake E is connected P1, P1 inserts tap water and shifts piston onto the reservoir chamber bottom, closes water delivering orifice H, cancels tap water pressure and makes P1 externally be communicated with.With the water emptying of P2, sealed after being vacuumized in case of necessity.
(3) water under the equipment.Handle 3-position-3-way valve K with external pressure intake E access negative pressure source P2 through trigger pip after arriving the sampling location; Piston moves upward under negative pressure drives; The water of extracting water inlet saw through filter core A and backed down water check valve B entering reservoir chamber D; Up to piston arrives reservoir chamber top, receive the surge chamber bottom piston and stop, adopt the water process and finish.
(4) handle 3-position-3-way valve K, earlier sounding bottle external pressure intake E is connected water tank P1, close external pressure intake E again, press in the reservoir chamber D to equal to adopt the water depth hydrostatic pressure.With proposing recovery on the sampling bottle, along with the depth of water reduces, surge chamber F upper pressure reduces with external pressure, and the higher water of pressure promotes to move on the piston of surge chamber F bottom among the reservoir chamber D, keeps the balance with external pressure.Water Soluble Gas in the pore water sample also is able to preserve because of the gas that pressure descends and possibly discharge.
(5) arrive the deck, the gaseous sample that the hole water sample that collects and it discharge is transferred to the test sample bottle through water delivering orifice.
(6) end-of-job.
The utility model can also be applied to sub sea imported oil controlled atmosphere and look into and fields such as exploitation, underwater environment monitoring, has broad application prospects.
The various schemes identical with the design of the utility model are all within the protection domain of this claim.
Claims (1)
1. the airtight water technology of adopting of negative pressure extracting formula original position is characterized in that in an airtight collecting bottle housing, a reservoir chamber being arranged; Can add the micro porous filtration core before between water inlet and reservoir chamber, a water check valve, water inlet being installed; The reservoir chamber bottom is an extracting piston, and the other housing of its side is opened a water delivering orifice, opens an external pressure intake on the reservoir chamber upper end wall; It on the reservoir chamber surge chamber; Both separate through piston, other opening in shell of surge chamber upper side and exterior, and housing topmost is a plug; An external pressure source is made up of water tank and negative pressure source, and water tank is filled clear water, and can open to the outside world is that pressure equals environmental pressure; Maybe can add low hydraulic pressure; Negative pressure source is filled air or is vacuumized, and sounding bottle external pressure intake is selected to insert water tank or negative pressure source through a 3-position-3-way valve, or closes; Sampling bottle reservoir chamber piston before following water arrives sounding bottle external pressure intake access negative pressure source behind the sampling location in the bottom, and driven plunger moves upward, and the water of extracting water inlet gets into reservoir chamber; Up to piston arrives reservoir chamber top, receive the surge chamber bottom piston and stop, adopt the water process and finish; Handle the 3-position-3-way valve this moment, earlier sounding bottle external pressure intake is connected water tank, close the external pressure intake again; With proposing recovery on the sampling bottle,, move on the piston of surge chamber bottom along with the depth of water reduces; The reservoir chamber water sample keeps the balance with external pressure, and the Water Soluble Gas in the sample also is able to preserve because of the gas that pressure descends and possibly discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202599442U CN202210040U (en) | 2011-07-22 | 2011-07-22 | Negative pressure extraction type in-situ airtight water sampling technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202599442U CN202210040U (en) | 2011-07-22 | 2011-07-22 | Negative pressure extraction type in-situ airtight water sampling technology |
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| CN202210040U true CN202210040U (en) | 2012-05-02 |
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| CN2011202599442U Expired - Fee Related CN202210040U (en) | 2011-07-22 | 2011-07-22 | Negative pressure extraction type in-situ airtight water sampling technology |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305729A (en) * | 2011-07-22 | 2012-01-04 | 中国地质科学院矿产资源研究所 | Negative pressure extraction type in-situ airtight water sampling technology |
| CN104101515A (en) * | 2014-07-18 | 2014-10-15 | 中国地质科学院矿产资源研究所 | Negative pressure extraction type in-situ time sequence airtight water sampling technology |
| CN105954063A (en) * | 2016-06-02 | 2016-09-21 | 广州海洋地质调查局 | Seabed pore water collecting device |
| CN108760387A (en) * | 2018-03-17 | 2018-11-06 | 宁夏大学 | A kind of portable inland lake hydrophore |
| CN109596388A (en) * | 2017-09-30 | 2019-04-09 | 广西欧讯科技服务有限责任公司 | A kind of favorable rust preventing effect and seawater collection device peculiar to vessel |
| CN109724835A (en) * | 2019-03-07 | 2019-05-07 | 国家地质实验测试中心 | Sediment Pore Water scene device for quick collecting and method containing gas hydrates |
| CN111458193A (en) * | 2020-04-14 | 2020-07-28 | 青岛欧亚海洋调查装备有限公司 | Self-control satellite positioning sea surface water and oil extraction device |
-
2011
- 2011-07-22 CN CN2011202599442U patent/CN202210040U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305729A (en) * | 2011-07-22 | 2012-01-04 | 中国地质科学院矿产资源研究所 | Negative pressure extraction type in-situ airtight water sampling technology |
| CN104101515A (en) * | 2014-07-18 | 2014-10-15 | 中国地质科学院矿产资源研究所 | Negative pressure extraction type in-situ time sequence airtight water sampling technology |
| CN105954063A (en) * | 2016-06-02 | 2016-09-21 | 广州海洋地质调查局 | Seabed pore water collecting device |
| CN109596388A (en) * | 2017-09-30 | 2019-04-09 | 广西欧讯科技服务有限责任公司 | A kind of favorable rust preventing effect and seawater collection device peculiar to vessel |
| CN108760387A (en) * | 2018-03-17 | 2018-11-06 | 宁夏大学 | A kind of portable inland lake hydrophore |
| CN108760387B (en) * | 2018-03-17 | 2021-02-23 | 宁夏大学 | Portable inland lake water sampler |
| CN109724835A (en) * | 2019-03-07 | 2019-05-07 | 国家地质实验测试中心 | Sediment Pore Water scene device for quick collecting and method containing gas hydrates |
| CN109724835B (en) * | 2019-03-07 | 2023-11-24 | 国家地质实验测试中心 | Device and method for rapidly collecting sediment pore water containing natural gas hydrate on site |
| CN111458193A (en) * | 2020-04-14 | 2020-07-28 | 青岛欧亚海洋调查装备有限公司 | Self-control satellite positioning sea surface water and oil extraction device |
| CN111458193B (en) * | 2020-04-14 | 2023-08-15 | 青岛欧亚海洋调查装备有限公司 | Self-control satellite positioning sea surface water production oil extraction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20130722 |