CN210322442U - Fluid sample suction filtration device based on ROV - Google Patents
Fluid sample suction filtration device based on ROV Download PDFInfo
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- CN210322442U CN210322442U CN201921111682.8U CN201921111682U CN210322442U CN 210322442 U CN210322442 U CN 210322442U CN 201921111682 U CN201921111682 U CN 201921111682U CN 210322442 U CN210322442 U CN 210322442U
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- oil cylinder
- piston rod
- cylinder body
- suction filtration
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- 238000000967 suction filtration Methods 0.000 title claims abstract description 45
- 239000012530 fluid Substances 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000000523 sample Substances 0.000 claims abstract description 44
- 238000001228 spectrum Methods 0.000 claims abstract description 30
- 239000013535 sea water Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 30
- 238000001514 detection method Methods 0.000 abstract description 20
- 239000002184 metal Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 5
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a fluid sample suction filtration device based on ROV, wherein a suction filtration oil cylinder comprises a water cylinder and an oil cylinder, two hydraulic interfaces of the oil cylinder are connected with a hydraulic power source to control the expansion of the oil cylinder, one of the two interfaces of the water cylinder is connected with a reversing valve, and the other one is communicated with external seawater; two hydraulic ports of the reversing valve are connected with a hydraulic power source to control the reversing of the reversing valve, one of the other two hydraulic ports is connected with the spectrum probe, and the other hydraulic port is communicated with external seawater; the underwater pressure gauge is connected between the suction filtration oil cylinder and the reversing valve; controlling a reversing valve to connect a water cylinder of the suction filtration oil cylinder with the spectrum probe, wherein the oil cylinder stretches and contracts, and the inside of the water cylinder is in positive pressure or negative pressure, so that external seawater enters or is discharged from the spectrum probe into the spectrum detection cavity, and the detection of a sample is realized; when the reversing valve is reversed, the metal filter head can be reversely flushed. The utility model discloses can accomplish the suction filtration function of liquid sample under the condition of external hydraulic power source to realize the backwash function.
Description
Technical Field
The utility model belongs to deep sea laser raman spectroscopy detection system's normal position raman spectroscopy surveys the field, and specifically speaking is a supplementary fluid sample suction filtration device based on ROV who accomplishes deep sea fluid sample normal position spectral detection.
Background
At present, most of fluid sample introduction modes aiming at in-situ spectral detection of deep sea fluid samples freely flow through an optical window, and effective extraction of the fluid samples is difficult to realize in such a mode; moreover, because some detection target objects in the fluid have concentration difference with the surrounding seawater, the free diffusion can cause the concentration of the detection target objects in the fluid to change. Therefore, the tightness of the fluid sample passage needs to be considered in the suction filtration process of the fluid sample, and the influence of the mixing of the fluid sample and seawater on the concentration of the detection target object is avoided. The fluid sampling mode also needs to be changed from the traditional free flow optical window to a deep sea ROV (remote operated vehicle) hydraulic driving mode, but the tightness of the device needs to be paid attention to avoid the pollution of hydraulic oil to fluid samples, and the functions of a reverse extraction seawater flushing device and the like need to be considered. Above circumstances have decided under the deep sea complex environment, need improve with overcoming the not enough in two aspects of kind mode and drive mode to traditional fluid sample suction filter device.
SUMMERY OF THE UTILITY MODEL
To the not enough that above-mentioned deep sea fluid advances kind mode and drive mode and exists, the utility model aims to provide a fluid sample suction filtration device based on ROV that can use under the deep sea complex condition.
The purpose of the utility model is realized through the following technical scheme:
the utility model discloses a suction filtration hydro-cylinder, manometer, two-position three way reversing valve and external hydraulic power source and spectrum probe under water, wherein suction filtration hydro-cylinder divide into jar and hydro-cylinder, two connect the mouth on this hydro-cylinder respectively through hydraulic line A and hydraulic line B with hydraulic power source connect and form the return circuit, control suction filtration hydro-cylinder's piston rod flexible, a connect the mouth on the jar with external sea water intercommunication, another connect the mouth through connecting line with two-position three way reversing valve intercommunication, the manometer communicates between the jar and two-position three way reversing valve of suction filtration hydro-cylinder under water; the two-position three-way reversing valve is provided with a joint A, a joint B, a joint C and a joint D respectively, the joint A and the joint B are connected with a hydraulic power source through a hydraulic pipeline C and a hydraulic pipeline D respectively to form a loop and control the two-position three-way reversing valve to reverse, the joint D is communicated with the spectrum probe through a hydraulic pipeline E, and the joint C is communicated with external seawater;
wherein: the suction filtration oil cylinder comprises a rodless end cover, an oil cylinder body, a piston rod, a connecting joint body, a water cylinder body and a rod end cover, wherein two ends of the connecting joint body are respectively connected with one end of the oil cylinder body and one end of the water cylinder body in a sealing manner, the other end of the oil cylinder body is connected with the rodless end cover in a sealing manner, the other end of the water cylinder body is connected with the rod end cover in a sealing manner, the piston rod is accommodated in the oil cylinder body and the water cylinder body and is penetrated by the connecting joint body and connected with the connecting joint body in a sealing and sliding manner, and the output end of the piston rod penetrates out of the rod end cover and is connected with the;
the oil cylinder body is respectively provided with a nozzle A and a nozzle B which are communicated with the inside of the oil cylinder body, the nozzle A is communicated with a hydraulic power source through a hydraulic pipeline A, and the nozzle B is communicated with the hydraulic power source through a hydraulic pipeline B to form a loop;
the water cylinder body is respectively provided with a connecting nozzle C and a connecting nozzle D which are communicated with the interior of the water cylinder body, the connecting nozzle C is communicated with external seawater, and the connecting nozzle D is communicated with the two-position three-way reversing valve through a connecting pipeline;
the connecting pipeline is divided into a connecting pipeline A and a connecting pipeline B, one end of the connecting pipeline A is communicated with the connector D, the other end of the connecting pipeline A is communicated to one interface of the tee joint, the second interface of the tee joint is communicated with the two-position three-way reversing valve through the connecting pipeline B, and the underwater pressure meter is connected to the third interface of the tee joint;
the piston rod is divided into an active end piston rod and an execution end piston rod, one end of the active end piston rod is accommodated in the cylinder body of the oil cylinder, and the other end of the active end piston rod penetrates through the connecting joint body and is in sealed sliding connection with the connecting joint body; the execution end piston rod is accommodated in the water cylinder body, one end of the execution end piston rod is connected with the other end of the active end piston rod, and the other end of the execution end piston rod is taken as an output end and penetrates out of the active end piston rod through the active end piston rod and is in sealed sliding connection with the active end piston rod;
the rodless end cover is connected with the oil cylinder body, the rod end cover is connected with the water cylinder body, the connecting joint body is connected with the oil cylinder body, and the connecting joint body is connected with the water cylinder body through sealing threads; a support ring and an O-shaped sealing ring are arranged between one end of the active end piston rod and the inner wall of the cylinder body of the oil cylinder, and a support ring and an O-shaped sealing ring are arranged between the other end of the active end piston rod and the connecting joint body; and a support ring and an O-shaped sealing ring are arranged between one end of the execution end piston rod and the inner wall of the water cylinder body, and a support ring and an O-shaped sealing ring are arranged between the other end of the execution end piston rod and the end cover of the rod.
The utility model discloses an advantage does with positive effect:
the utility model has the advantages of simple structure and reasonable design, can accomplish the suction filtration and the back flush function of deep sea (the degree of depth can reach 3000 meters) fluid sample under the condition that external hydraulic power source supplied with, survey the chamber with fluid sample suction spectrum through the metal filter head, avoid solid particle to the influence of spectral detection in the fluid on the one hand, the influence of sneaking into to the spectrum of sea water when on the other hand also can avoid the normal position to survey.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view of the internal structure of the suction filtration cylinder in FIG. 1;
wherein: the device comprises a hydraulic power source 1, a spectrum probe 2, a suction filtration oil cylinder 3, a rodless end cover 301, an oil cylinder body 302, an active end piston rod 303, a connecting joint body 304, a water cylinder body 305, a support ring 306, an O-shaped seal ring 307, an execution end piston rod 308, a rod-end cover 309, a connector A310, a connector B311, a connector C312, a connector D313, an underwater pressure gauge 4, a two-position three-way reversing valve 5, a connector A501, a connector B502, a connector C503, a connector D504, a hydraulic pipeline A601, a hydraulic pipeline B602, a hydraulic pipeline C603, a hydraulic pipeline D604, a hydraulic pipeline E605, a three-way joint 7, a connecting pipeline A801, a connecting pipeline B802, a metal filter head 9 and a spectrum detection cavity 10.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the utility model discloses a suction filtration hydro-cylinder 3, manometer 4 under water, two-position three way reversing valve 5 and external hydraulic power source 1 and spectrum probe 2, wherein suction filtration hydro-cylinder 3 divide into jar and hydro-cylinder, two mouthpieces on this hydro-cylinder are connected and form the return circuit with hydraulic power source 1 through hydraulic pressure pipeline A601 and hydraulic pressure pipeline B602 respectively, the piston rod of control suction filtration hydro-cylinder 3 is flexible, a mouthpiece on the jar communicates with external sea water, another mouthpiece communicates through connecting tube and two-position three way reversing valve 5. The underwater pressure gauge 4 is communicated between a water cylinder of the suction filtration oil cylinder 3 and the two-position three-way reversing valve 5, and forms a pressure loop with the two-position three-way reversing valve 5 and the suction filtration oil cylinder 3 to indicate pressure difference and provide reference for actions such as actual sample suction filtration in deep sea. The two-position three-way reversing valve 5 is respectively provided with a joint A501, a joint B502, a joint C503 and a joint D504, the joint A501 and the joint B502 are respectively connected with the hydraulic power source 1 through a hydraulic pipeline C603 and a hydraulic pipeline D604 to form a loop and control the reversing of the two-position three-way reversing valve, the joint D504 is communicated with the spectrum probe 2 through a hydraulic pipeline E605, and the joint C503 is communicated with the outside seawater.
The suction filtration cylinder 3 of this embodiment includes a rodless end cap 301, a cylinder body 302, a piston rod, a connection joint body 304, a water cylinder body 305, and a rod end cap 309, both ends of the connection joint body 304 are respectively connected with one end of the cylinder body 302 and one end of the water cylinder body 305 in a sealing and threaded manner, the other end of the cylinder body 302 is connected with the rodless end cap 301 in a sealing and threaded manner, and the other end of the water cylinder body 305 is connected with the rod end cap 309 in a sealing and threaded manner. The sealing between the rodless end cover 301 and the cylinder body 302 and the sealing between the rod end cover 309 and the cylinder body 305 are realized by O-shaped sealing rings 307. The piston rod is accommodated in the cylinder body 302 and the cylinder body 305, and is penetrated through by the connection joint body 304 and is connected with the connection joint body 304 in a sealing and sliding manner, and the output end of the piston rod is penetrated out by the rod end cover 309 and is connected with the rod end cover 309 in a sealing and sliding manner. The piston rod of the present embodiment is divided into an active end piston rod 303 and an actuating end piston rod 308, wherein one end of the active end piston rod 303 is accommodated in the cylinder body 302, and the other end is penetrated by the connecting joint body 304 and is connected with the connecting joint body 304 in a sealing and sliding manner. The actuating end piston rod 308 is accommodated in the cylinder body 305, one end of which is connected to the other end of the active end piston rod 303, and the other end of which is penetrated out of the rod end cap 309 as an output end and is connected to the rod end cap 309 in a sealing sliding manner. The connection joint body 304 and the cylinder body 302 and the connection joint body 304 and the cylinder body 305 are sealed by O-ring seals 307. A support ring 306 and an O-ring seal 307 are arranged between one end of the active end piston rod 303 and the inner wall of the cylinder body 302, and a support ring 306 and an O-ring seal 307 are arranged between the other end of the active end piston rod 303 and the connecting joint body 304. A support ring 306 and an O-ring seal 307 are provided between one end of the actuation end piston rod 308 and the inner wall of the water cylinder body 305, and a support ring 306 and an O-ring seal 307 are provided between the other end and the rod end cover 309.
The cylinder body 302 of this embodiment is provided with a nozzle a310 and a nozzle B311 respectively communicating with the inside of the cylinder body 302, the nozzle a310 communicates with the hydraulic power source 1 through a hydraulic pipeline a601, and the nozzle B311 communicates with the hydraulic power source 1 through a hydraulic pipeline B602, thereby forming a loop. The cylinder body 305 of the embodiment is provided with a nozzle C312 and a nozzle D313 respectively communicated with the inside of the cylinder body 305, the nozzle C312 is communicated with the outside seawater, and the nozzle D313 is communicated with the two-position three-way reversing valve 5 through a connecting pipeline. The connecting pipeline of the embodiment is divided into a connecting pipeline A801 and a connecting pipeline B802, one end of the connecting pipeline A801 is communicated with the connector D313, the other end of the connecting pipeline A is communicated to one interface of the tee joint 7, the second interface of the tee joint 7 is communicated with the two-position three-way reversing valve 5 through the connecting pipeline B802, and the underwater pressure gauge 4 is connected to the third interface of the tee joint 7.
The utility model discloses a two-position three-way reversing valve 5 is prior art.
The utility model discloses a use method does:
the hydraulic power source 1 drives the suction filtration oil cylinder 3 to move, so that the piston rod stretches and retracts, and positive pressure or negative pressure is formed in the water cylinder, so that external seawater enters the spectrum detection cavity 10 of the spectrum probe 2 from the spectrum probe 2 or is discharged from the water cylinder, and the spectrum probe 2 absorbs a fluid sample in situ to enter the spectrum detection cavity 10 for spectrum detection. When the hydraulic power source 1 drives the two-position three-way reversing valve 5 to reverse, external seawater is reversely pumped to flush the metal filter head 9 at the front end of the spectrum probe 2 in cooperation with the extension and retraction of the piston rod. The method specifically comprises the following steps:
when the two-position three-way reversing valve 5 is at the initial position, the spectrum detection cavity 10 of the spectrum probe 2 is communicated with the water tank of the suction filtration oil cylinder 3 through the hydraulic pipeline E605, the joint D504, the two-position three-way reversing valve 5, the connecting pipeline B802, the three-way valve 7, the connecting pipeline A801 and the joint D313. After the two-position three-way reversing valve 5 is driven by the hydraulic power source 1 to reverse, the water tank of the suction filtration oil cylinder 3 is communicated with the outside seawater through a connector D313, a connecting pipeline A801, a three-way valve 7, a connecting pipeline B802, the two-position three-way reversing valve 5 and a connector C503.
The fluid sample is filtered into the spectrum detection cavity 10 for spectrum detection and is discharged to the outside: the hydraulic power source 1 drives the active end piston rod 303 of the suction filtration oil cylinder 3 to drive the execution end piston rod 305 to retract, and the inside of the water cylinder is in negative pressure, so that a fluid sample enters the water cylinder from the spectrum detection cavity 10 through the hydraulic pipeline E605, the joint D504, the two-position three-way reversing valve 5, the connecting pipeline B802, the three-way valve 7, the connecting pipeline A801 and the joint D313, and in the process, in-situ spectrum detection is performed on the fluid sample in the spectrum detection cavity 10. Then, the hydraulic power source 1 drives the two-position three-way reversing valve 5 to reverse, after reversing, the hydraulic power source 1 reversely drives the driving end piston rod 303 of the suction filtration oil cylinder 3 to drive the execution end piston rod 305 to extend, external seawater enters the water tank through a connector C312 communicated with the external seawater, the interior of the water tank is in positive pressure, and a fluid sample in the water tank is discharged to the outside through the connector D313, the connecting pipeline A801, the three-way valve 7, the connecting pipeline B802, the two-position three-way reversing valve 5 and the connector C503.
And (3) a back flushing process: the hydraulic power source 1 drives the two-position three-way reversing valve 5 to reverse, the driving end piston rod 303 of the suction filtration oil cylinder 3 is driven to drive the execution end piston rod 305 to retract, the inside of the water cylinder is negative pressure, and outside seawater enters the water cylinder through the joint C503, the two-position three-way reversing valve 5, the connecting pipeline B802, the three-way valve 7, the connecting pipeline A801 and the joint D313. Then, the hydraulic power source 1 drives the two-position three-way reversing valve 5 to reverse again, the driving end piston rod 303 of the suction filtration oil cylinder 3 is driven to drive the execution end piston rod 305 to extend out, the pressure in the water cylinder is positive, seawater in the water cylinder flows into the spectrum detection cavity 10 of the spectrum probe 2 through the connector D313, the connecting pipeline A801, the three-way valve 7, the connecting pipeline B802, the two-position three-way reversing valve 5, the connector D504 and the hydraulic pipeline E605, and is discharged to the outside after the metal filter head 9 is flushed.
The utility model discloses can accomplish the suction filtration function of fluid sample under the condition of external hydraulic power source to realize the backwash function.
Claims (7)
1. The utility model provides a fluid sample suction filtration device based on ROV which characterized in that: the device comprises a suction filtration oil cylinder (3), an underwater pressure gauge (4), a two-position three-way reversing valve (5), an external hydraulic power source (1) and a spectrum probe (2), wherein the suction filtration oil cylinder (3) is divided into a water cylinder and an oil cylinder, two connecting nozzles on the oil cylinder are respectively connected with the hydraulic power source (1) through a hydraulic pipeline A (601) and a hydraulic pipeline B (602) to form a loop and control the extension of a piston rod of the suction filtration oil cylinder (3), one connecting nozzle on the water cylinder is communicated with external seawater, the other connecting nozzle is communicated with the two-position three-way reversing valve (5) through a connecting pipeline, and the underwater pressure gauge (4) is communicated between the water cylinder of the suction filtration oil cylinder (3) and the two-position three-way reversing valve (5); the two-position three-way reversing valve (5) is provided with a joint A (501), a joint B (502), a joint C (503) and a joint D (504) respectively, the joint A (501) and the joint B (502) are connected with a hydraulic power source (1) through a hydraulic pipeline C (603) and a hydraulic pipeline D (604) respectively to form a loop and control the reversing of the two-position three-way reversing valve, the joint D (504) is communicated with the spectrum probe (2) through a hydraulic pipeline E (605), and the joint C (503) is communicated with external seawater.
2. The ROV-based fluid sample suction filtration device of claim 1, wherein: the suction filtration oil cylinder (3) comprises a rodless end cover (301), an oil cylinder body (302), a piston rod, a connecting joint body (304), a water cylinder body (305) and a rod end cover (309), wherein two ends of the connecting joint body (304) are respectively connected with one end of the oil cylinder body (302) and one end of the water cylinder body (305) in a sealing mode, the other end of the oil cylinder body (302) is connected with the rodless end cover (301) in a sealing mode, the other end of the water cylinder body (305) is connected with the rod end cover (309) in a sealing mode, the piston rod is contained in the oil cylinder body (302) and the water cylinder body (305) and penetrates through the connecting joint body (304) to be connected with the connecting joint body (304) in a sealing sliding mode, and the output end of the piston rod penetrates out of the rod end cover (309) to be connected with the rod end cover.
3. The ROV-based fluid sample suction filtration device of claim 2, wherein: the oil cylinder body (302) is provided with a nozzle A (310) and a nozzle B (311) which are communicated with the inside of the oil cylinder body (302), the nozzle A (310) is communicated with the hydraulic power source (1) through the hydraulic pipeline A (601), and the nozzle B (311) is communicated with the hydraulic power source (1) through the hydraulic pipeline B (602) to form a loop.
4. The ROV-based fluid sample suction filtration device of claim 2, wherein: the water cylinder body (305) is provided with a nozzle C (312) and a nozzle D (313) which are communicated with the interior of the water cylinder body (305), the nozzle C (312) is communicated with the outside seawater, and the nozzle D (313) is communicated with the two-position three-way reversing valve (5) through a connecting pipeline.
5. The ROV-based fluid sample suction filtration device of claim 4, wherein: the connecting pipeline is divided into a connecting pipeline A (801) and a connecting pipeline B (802), one end of the connecting pipeline A (801) is communicated with the connector D (313), the other end of the connecting pipeline A is communicated to one interface of the tee joint (7), the second interface of the tee joint (7) is communicated with the two-position three-way reversing valve (5) through the connecting pipeline B (802), and the underwater pressure gauge (4) is connected to the third interface of the tee joint (7).
6. The ROV-based fluid sample suction filtration device of claim 2, wherein: the piston rod is divided into an active end piston rod (303) and an execution end piston rod (308), one end of the active end piston rod (303) is accommodated in the oil cylinder body (302), and the other end of the active end piston rod (303) penetrates through the connecting joint body (304) and is in sealing sliding connection with the connecting joint body (304); the execution end piston rod (308) is accommodated in the water cylinder body (305), one end of the execution end piston rod is connected with the other end of the driving end piston rod (303), and the other end of the execution end piston rod is taken as an output end and penetrates out of the rod end cover (309) to be in sealing sliding connection with the rod end cover (309).
7. The ROV-based fluid sample suction filtration device of claim 6, wherein: the rodless end cover (301) is connected with the oil cylinder body (302), the rod end cover (309) is connected with the water cylinder body (305), the connecting joint body (304) is connected with the oil cylinder body (302), and the connecting joint body (304) is connected with the water cylinder body (305) through sealing threads; a support ring (306) and an O-shaped sealing ring (307) are arranged between one end of the driving end piston rod (303) and the inner wall of the oil cylinder body (302), and a support ring (306) and an O-shaped sealing ring (307) are arranged between the other end of the driving end piston rod and the connecting joint body (304); a support ring (306) and an O-shaped sealing ring (307) are arranged between one end of the execution end piston rod (308) and the inner wall of the water cylinder body (305), and a support ring (306) and an O-shaped sealing ring (307) are arranged between the other end of the execution end piston rod and the rod end cover (309).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111682.8U CN210322442U (en) | 2019-07-16 | 2019-07-16 | Fluid sample suction filtration device based on ROV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111682.8U CN210322442U (en) | 2019-07-16 | 2019-07-16 | Fluid sample suction filtration device based on ROV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322442U true CN210322442U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921111682.8U Withdrawn - After Issue CN210322442U (en) | 2019-07-16 | 2019-07-16 | Fluid sample suction filtration device based on ROV |
Country Status (1)
| Country | Link |
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| CN (1) | CN210322442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286000A (en) * | 2019-07-16 | 2019-09-27 | 中国科学院海洋研究所 | A kind of fluid sample Suction filtration device and its application method based on ROV |
-
2019
- 2019-07-16 CN CN201921111682.8U patent/CN210322442U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286000A (en) * | 2019-07-16 | 2019-09-27 | 中国科学院海洋研究所 | A kind of fluid sample Suction filtration device and its application method based on ROV |
| CN110286000B (en) * | 2019-07-16 | 2024-07-12 | 中国科学院海洋研究所 | ROV-based fluid sample suction filtration device and application method thereof |
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