CN104863916A - Low-sampling-valve-driving-power deep sea water body sampling hydraulic system - Google Patents
Low-sampling-valve-driving-power deep sea water body sampling hydraulic system Download PDFInfo
- Publication number
- CN104863916A CN104863916A CN201510248622.0A CN201510248622A CN104863916A CN 104863916 A CN104863916 A CN 104863916A CN 201510248622 A CN201510248622 A CN 201510248622A CN 104863916 A CN104863916 A CN 104863916A
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- Prior art keywords
- sampling
- valve
- water body
- spring
- sampling cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a low-sampling-valve-driving-power deep sea water body sampling hydraulic system which mainly comprises a sampling cylinder, a piston, a spring, an energy accumulator, a sampling valve and a back pressure valve. By adjusting spring force and the piston area, inlet-outlet pressure difference during working of the sampling valve can be kept at a small value; accordingly, the flow force on a valve element of the sampling valve is lowered; sampling valve full-opening time is shortened; the throttling effect during opening of a sampling valve opening is lowered; the power and the weight of a sampling valve driving mechanism can be well lowered; sampling water layer accuracy is improved; damage to water body features from valve opening throttling is lowered.
Description
Technical field
The present invention relates to a kind of deep-sea water body sampling device, particularly can reduce the deep-sea water body airtight pressurize sample solution pressing system of sampling valve driving power.
Background technique
Deep-sea is that on the earth, last block is not by the field of human development, and it is rich in petroleum resources, mineral resources and living resources.Deep-sea detecting is the hot-point and frontier of current international research.Wherein, water body airtight holding sampler in deep-sea is the important technology equipment of deep-sea detecting.Water body airtight holding sampler in deep-sea utilizes a set of hydraulic system to complete the collection of water body, sealing and pressurize usually.Wherein, sampling valve is the key element in this system.Due to the static pressure that deep-sea is huge, the spool of sampling valve is subject to larger hydraulic power effect in opening process, thus needs to utilize the device manipulation sampling valves such as hydraulic efficiency manipulator, to complete sampling control.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of deep-sea water body sample solution pressing system of low sampling valve driving power.
The technical solution adopted for the present invention to solve the technical problems is: the present invention includes sampling cylinder, piston, spring, accumulator, sampling valve and back pressure valve.Piston is arranged in sampling cylinder inner chamber, and sampling cylinder inner chamber is divided into former and later two chambeies; Be provided with spring in the ante-chamber of sampling cylinder, one end of spring withstands on piston end surface, and the other end of spring withstands in the front end face of sampling cylinder; The ante-chamber of sampling cylinder communicates with the outlet of sampling valve, and the import of sampling valve communicates with extraneous seawater; The back cavity of sampling cylinder communicates with the import of back pressure valve, and the outlet of back pressure valve communicates with extraneous seawater; Accumulator communicates with the back cavity of sampling cylinder, the import of back pressure valve simultaneously.
The beneficial effect that the present invention has is:
(1) before sampling, by the spring force of Regulation spring and the area of piston, the pressure reduction of sampling valve import and outlet can be made to remain on a less numerical value, thus the hydraulic power reduced on sampling valve spool, and then reduce the power of sampling valve driving mechanism, be convenient to the development of light compact driving mechanism.
(2) pressure reduction of reduction sampling valve import and outlet, can shorten throttling action when sampling valve open time, the valve port unlatching of reduction sampling valve, is conducive to improving sampling water layer precision with the throttling of minimizing valve port to the destruction of water body feature.
Accompanying drawing explanation
Fig. 1 is hydraulic system principle figure of the present invention.
Fig. 2 is the fundamental diagram of sampling apparatus when not putting into water.
Fig. 3 is that sampling apparatus dive to hydrostatic is greater than the fundamental diagram after charging pressure of accumulator.
Fig. 4 is sampling apparatus dive to sampling depth, starts when sampling fundamental diagram.
Fig. 5 is the fundamental diagram of sampling apparatus after sampling terminates.
In figure: 1, sampling valve, 2, sampling cylinder, 3, accumulator, 4, back pressure valve, 5, spring, 6, piston.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1, the present invention is made up of sampling valve 1, sampling cylinder 2, accumulator 3, back pressure valve 4, spring 5 and piston 6.Piston 6 is arranged in the inner chamber of sampling cylinder 2, and the inner chamber of sampling cylinder 2 is divided into former and later two chambeies; Be provided with spring 5 in the ante-chamber of sampling cylinder 2, one end of spring 5 withstands on the end face of piston 6, and the other end of spring 5 withstands on the end face of sampling cylinder 1 inner chamber; The ante-chamber of sampling cylinder 2 communicates with the outlet of sampling valve 1, and the import of sampling valve 1 communicates with extraneous seawater; The back cavity of sampling cylinder 2 communicates with the import of back pressure valve 4, and the outlet of back pressure valve 4 communicates with extraneous seawater; Accumulator 3 communicates with the back cavity of sampling cylinder 2, the import of back pressure valve 4 simultaneously.
As shown in Figure 2, when sampling apparatus does not also enter water, sampling valve 1 and back pressure valve 4 are all operated in bottom.By the air pressurized in accumulator 3 to 1/3rd of sampled pressure, and be full of water in the back cavity of sampling cylinder 2.Now, piston 6 is forced into the leftmost side of sampling cylinder 2 inner chamber, and spring 5 is compressed to minimum value.The pressure difference of sampling cylinder 2 ante-chamber and back cavity equals the area of spring force than upper piston 6 of spring 5.
As shown in Figure 3, when sampling apparatus dive to hydrostatic equals the air pressure in accumulator 3, sampling valve 1 is operated in bottom, and back pressure valve 4 is operated in upper.Along with the depth of water increases, the water in the air in accumulator 3, sampling cylinder 2 ante-chamber and back cavity is compressed simultaneously.Now, the water pressure in the air pressure in accumulator 3 and sampling cylinder 2 back cavity all equals hydrostatic, and the pressure difference of sampling cylinder 2 ante-chamber and back cavity equals the area of spring force than upper piston 6 of spring 5.
As shown in Figure 4, when sampling apparatus dive is to sampling depth, sampling valve 1 and back pressure valve 4 are operated in upper.Now, the inlet/outlet pressure reduction of sampling valve 1 equals the area of spring force than upper piston 6 of spring 5.Water body enters the ante-chamber of sampling cylinder 2 under the effect of the inlet/outlet pressure reduction of sampling valve 1, and promotes piston 6 and move right, and the decrement of spring 5 reduces, and the water in sampling cylinder 2 back cavity is discharged.
As shown in Figure 5, when the water pressure in sampling cylinder 2 ante-chamber equals hydrostatic, sampling valve 1 and back pressure valve 4 are all operated in bottom.Now, sampling terminates, and keeps water body pressure constant by accumulator 3.
Claims (1)
1. the deep-sea water body sample solution pressing system of one kind low sampling valve driving power, comprise sampling valve (1), sampling cylinder (2), accumulator (3), back pressure valve (4), spring (5) and piston (6), it is characterized in that:
Described piston (6) is arranged in the inner chamber of sampling cylinder (2), and the inner chamber of sampling cylinder (2) is divided into former and later two chambeies;
Be provided with spring (5) in the ante-chamber of described sampling cylinder (2), one end of spring (5) withstands on the end face of piston 6, and the other end of spring 5 withstands on the end face of sampling cylinder (1) inner chamber;
The ante-chamber of described sampling cylinder (2) communicates with the outlet of sampling valve (1), and the import of sampling valve (1) communicates with extraneous seawater;
The back cavity of described sampling cylinder (2) communicates with the import of back pressure valve (4), and the outlet of back pressure valve (4) communicates with extraneous seawater;
Described accumulator (3) communicates with the back cavity of sampling cylinder (2), the import of back pressure valve (4) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248622.0A CN104863916A (en) | 2015-05-17 | 2015-05-17 | Low-sampling-valve-driving-power deep sea water body sampling hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248622.0A CN104863916A (en) | 2015-05-17 | 2015-05-17 | Low-sampling-valve-driving-power deep sea water body sampling hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863916A true CN104863916A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510248622.0A Pending CN104863916A (en) | 2015-05-17 | 2015-05-17 | Low-sampling-valve-driving-power deep sea water body sampling hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092659A (en) * | 2016-06-02 | 2016-11-09 | 中国地质调查局油气资源调查中心 | A kind of bottom seawater layering harvester |
| CN107779392A (en) * | 2016-08-25 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of high pressure microbial inoculant and sampling sample transfering device and sampling method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898041A (en) * | 1971-03-01 | 1975-08-05 | Envirotech Corp | Fluid sampler apparatus and method |
| CN1554934A (en) * | 2003-12-21 | 2004-12-15 | 浙江大学 | Hand held type deep sea hydrothermal fidelity sampler |
| CN1559659A (en) * | 2004-03-02 | 2005-01-05 | 浙江大学 | Serial connected extreme environment analogue flow reaction device |
| CN1786680A (en) * | 2004-12-09 | 2006-06-14 | 中南大学 | Concentration fidility sampler for deep sea suspended granule and suspended bios |
| CN1828283A (en) * | 2006-04-07 | 2006-09-06 | 浙江大学 | Chemical sensor in-situ detection system for deep ocean |
| CN101034042A (en) * | 2007-04-10 | 2007-09-12 | 浙江大学 | Deep ocean hydrothermal sequence sampler |
| CN203824784U (en) * | 2014-05-20 | 2014-09-10 | 武汉磐索地勘科技有限公司 | Underwater vibration sampling device |
-
2015
- 2015-05-17 CN CN201510248622.0A patent/CN104863916A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898041A (en) * | 1971-03-01 | 1975-08-05 | Envirotech Corp | Fluid sampler apparatus and method |
| CN1554934A (en) * | 2003-12-21 | 2004-12-15 | 浙江大学 | Hand held type deep sea hydrothermal fidelity sampler |
| CN1559659A (en) * | 2004-03-02 | 2005-01-05 | 浙江大学 | Serial connected extreme environment analogue flow reaction device |
| CN1786680A (en) * | 2004-12-09 | 2006-06-14 | 中南大学 | Concentration fidility sampler for deep sea suspended granule and suspended bios |
| CN1828283A (en) * | 2006-04-07 | 2006-09-06 | 浙江大学 | Chemical sensor in-situ detection system for deep ocean |
| CN101034042A (en) * | 2007-04-10 | 2007-09-12 | 浙江大学 | Deep ocean hydrothermal sequence sampler |
| CN203824784U (en) * | 2014-05-20 | 2014-09-10 | 武汉磐索地勘科技有限公司 | Underwater vibration sampling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092659A (en) * | 2016-06-02 | 2016-11-09 | 中国地质调查局油气资源调查中心 | A kind of bottom seawater layering harvester |
| CN107779392A (en) * | 2016-08-25 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of high pressure microbial inoculant and sampling sample transfering device and sampling method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |