CN107966333B - Deep sea in-situ gas pressure maintaining sampling system - Google Patents
Deep sea in-situ gas pressure maintaining sampling system Download PDFInfo
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- CN107966333B CN107966333B CN201711337766.9A CN201711337766A CN107966333B CN 107966333 B CN107966333 B CN 107966333B CN 201711337766 A CN201711337766 A CN 201711337766A CN 107966333 B CN107966333 B CN 107966333B
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- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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Abstract
The invention relates to the technical field of deep sea sampling, in particular to a deep sea in-situ gas pressure maintaining sampling system which comprises a supporting table, a gas production cover, a gas production cylinder and a hydraulic cylinder, wherein the gas production cover is arranged on the lower side of the table top of the supporting table, the gas production cylinder and the hydraulic cylinder are both arranged on the table top of the supporting table, a gas production piston is arranged in the gas production cylinder and is driven to move by the hydraulic cylinder, a one-way valve is arranged at the front end of the gas production cylinder and is communicated with the gas production cover through a gas production pipe, an exhaust pipe is arranged on one side of the front end of the gas production cylinder, and a throttle valve is arranged on the exhaust pipe; the gas production pipe stretches into a gas production pipe port in the gas production cover, a liquid level sensor is arranged on the gas production pipe port, and a photosensitive sensor is arranged on the table top of the supporting table. The invention can be carried on ROV or other submarines, automatically realize gas collection, greatly improve the intelligent degree, facilitate the collection and ensure that the collected gas is kept under the original pressure.
Description
Technical Field
The invention relates to the technical field of deep sea sampling, in particular to a deep sea in-situ gas pressure maintaining sampling system.
Background
The discovery of the submarine hydrothermal activity is one of important events in the ocean scientific research of the 20 th century, a large amount of metal sulfide resources are reserved near a hydrothermal vent, a unique biological community in an extreme environment is reserved, the method has extremely important scientific significance and economic value for the research of deep sea hydrothermal vents and an ecological system thereof, and the acquisition of a high-quality hydrothermal sample is one of the most effective and important means for carrying out the hydrothermal activity research at present.
Various deep sea hot liquid sampling devices have been developed in the prior art, mainly including a non-airtight sampler and an airtight sampler, the deep sea hot liquid sampling devices in the prior art have basically been capable of performing hot liquid small-volume fidelity sampling of a hot liquid nozzle, but in-situ gas sampling devices have slow progress, most of fluid sampling devices cannot perform in-situ gas collection and preservation of the hot liquid nozzle, and in the prior art, various gas in-situ sensors carried by a manned submersible or a cabled ROV are used for measuring gas components and contents, such as methane and H 2 S, carbon dioxide, etc., but other gas species cannot be analyzed, such as various hydrocarbons.
Disclosure of Invention
The invention aims to provide a deep sea in-situ gas pressure maintaining sampling system which can be carried on an ROV or other submarines and automatically realize gas collection, has high intelligent degree and convenient collection, and can ensure that the collected gas is kept under the original pressure.
The aim of the invention is realized by the following technical scheme:
the utility model provides a gaseous pressurize sampling system in deep sea normal position, includes supporting table, gas production cover, gas production cylinder and pneumatic cylinder, the gas production cover set up in the mesa downside of supporting table, gas production cylinder and pneumatic cylinder all set up in on the mesa of supporting table, be equipped with the gas production piston in the gas production cylinder, just the gas production piston passes through the pneumatic cylinder drive removes the gas production cylinder front end is equipped with the check valve, just the check valve pass through the gas production pipe with communicate with each other in the gas production cover gas production cylinder front end one side is equipped with the blast pipe, just be equipped with the choke valve on the blast pipe.
The gas production pipe stretches into a gas production pipe port in the gas production cover and is provided with a liquid level sensor, and the hydraulic cylinder is started under the control of a signal sent by the liquid level sensor.
The table top of the supporting table is provided with a photosensitive sensor, and when the liquid level sensor cannot work, the hydraulic cylinder is started under the control of a signal sent by the photosensitive sensor.
The hydraulic station is controlled to start by receiving a signal instruction through the control system, and the hydraulic cylinder is controlled to start through the hydraulic station.
And each supporting leg of the supporting table is provided with a gas production cover fixing rod, the free end of each gas production cover fixing rod is provided with a limit column, and the gas production cover is clamped and fixed through each limit column.
The gas production cover is hemispherical.
An outer cover is arranged on the supporting table, and a buoyancy rope ring is arranged on the upper side of the outer cover.
The invention has the advantages and positive effects that:
1. according to the invention, the gas sampling piston in the gas sampling cylinder is driven to move by the hydraulic cylinder, so that the gas sampling cylinder is like a needle tube to extract a gas sample, and the gas sampling cylinder is a cylinder body with a pressure maintaining function, and the gas can be always maintained under the original pressure after entering the gas sampling cylinder.
2. According to the invention, the gas collection operation is automatically started by sending a signal through the liquid level sensor in the gas production cover, and when the liquid level sensor cannot work normally due to less gas in the gas production cover or extremely large submarine gas injection quantity, the hydraulic cylinder can be forcedly started to operate to produce gas by sending a signal through the photosensitive sensor, so that the intelligent degree is greatly improved.
3. The front end of the gas production cylinder is provided with the one-way valve and the throttle valve, so that gas can only enter the gas production cylinder during collection and cannot overflow, and after the gas production is completed and the gas production cylinder is sent to a laboratory, the throttle valve facilitates gas output from the gas production cylinder.
4. According to the invention, the outer cover is arranged on the supporting platform, and the buoyancy rope ring is arranged on the upper side of the outer cover, so that the ROV or other submarines can be conveniently carried.
Drawings
Figure 1 is a schematic view of the external form of the present invention,
figure 2 is a schematic illustration of the invention of figure 1 with the cover removed,
figure 3 is a left side view of the invention of figure 2,
figure 4 is a schematic view of the structure of the mining cylinder in figure 2,
figure 5 is a schematic view of the working state of the present invention,
fig. 6 is a second schematic diagram of the working state of the present invention.
Wherein 1 is buoyancy rope ring, 2 is the dustcoat, 3 is the supporting bench, 4 is the gas production cover dead lever, 41 is spacing post, 5 is the gas production cover, 6 is the pneumatic cylinder, 7 is the hydraulic pressure station, 8 is control system, 9 is photosensitive sensor, 10 is the power, 11 is the choke valve, 12 is the check valve, 13 is the gas production cylinder, 14 is the gas production pipe, 141 is the gas production pipe port, 15 is the liquid level sensor, 16 is the blast pipe, 17 is the gas production piston.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the invention comprises a supporting table 3, a gas production cover 5, a gas production cylinder 13 and a hydraulic cylinder 6, wherein the gas production cover 5 is arranged at the lower side of the table surface of the supporting table 3, the gas production cylinder 13 and the hydraulic cylinder 6 are both arranged on the table surface of the supporting table 3, as shown in fig. 4, a gas production piston 17 is arranged in the gas production cylinder 13, the gas production piston 17 extends out from the tail end of the gas production cylinder 13 and is fixedly connected with the end part of the cylinder rod of the hydraulic cylinder 6, a one-way valve 12 is arranged at the front end of the gas production cylinder 13, the one-way valve 12 is communicated with the gas production cover 5 through a gas production pipe 14, an exhaust pipe 16 is arranged at one side of the front end of the gas production cylinder 13, and a throttle valve 11 is arranged on the exhaust pipe 16. The gas production cover 5 is hemispherical, because the underwater gas exists in a discontinuous bubble form, the hemispherical gas production cover 5 is convenient for gas collection, when the mechanism works, the gas production piston 17 in the gas production cylinder 13 is driven to move through the hydraulic cylinder 6, so that the gas production cylinder 13 is used for extracting a gas sample like a needle tube, in addition, the front end of the gas production cylinder 13 is provided with the one-way valve 12, the one-way valve 12 only allows the gas to enter, the gas production cylinder 13 is provided with the throttle valve 11 on the gas exhaust pipe 16, and when the invention is sent to a laboratory, the throttle valve 11 is unscrewed to facilitate the gas to be output from the gas production cylinder 13, and the one-way valve 12 and the throttle valve 11 are all known techniques in the field.
As shown in fig. 1 to 3, each supporting leg of the supporting platform 3 is provided with a gas production cover fixing rod 4, the free end of each gas production cover fixing rod 4 is provided with a limit post 41, and the opening end of the lower side of the gas production cover 5 is clamped by each limit post 41, so that the gas production cover 5 is fixed on the lower side of the table top of the supporting platform 3.
As shown in fig. 2 to 3, a hydraulic station 7, a control system 8 and a power supply 10 are arranged on the table top of the supporting table 3, a liquid level sensor 15 is arranged on a gas production pipe port 141 where the gas production pipe 14 extends into the gas production hood 5, water in the gas production hood 5 is discharged after gas enters the gas production hood 5, when the liquid level sensor 15 detects that the liquid level in the gas production hood 5 reaches a set value, an instruction is sent to the control system 8, the control system 8 controls the hydraulic station 7 to start working, the hydraulic station 7 controls the hydraulic cylinder 6 to start driving the gas production piston 17 to move, and the gas production cylinder 13 starts gas production operation. The power supply 10 supplies power to the control system 8 and the hydraulic station 7. The level sensor 15 is well known in the art.
In this embodiment, the present invention is carried on the ROV operator. As shown in fig. 2, a photosensitive sensor 9 is arranged on the table top of the supporting table 3, when the gas collected in the gas production cover 5 is less and cannot reach the starting condition of the liquid level sensor 15, or the jet quantity of the submarine gas is extremely large, the liquid level balance in the gas production cover 5 is seriously disturbed, so that when the liquid level sensor 15 cannot work normally, an ROV operator continuously and repeatedly turns on the ROV illuminating lamp for three times within 10 seconds, the photosensitive sensor 9 receives the light source change with uniform interval for three times and then sends a signal to the control system 8, and the hydraulic pump station 7 is started forcedly to work. The photosensitive sensor 9 is well known in the art.
As shown in fig. 1, an outer cover 2 is arranged on the supporting table 3 to protect each component, and a buoyancy rope ring 1 is arranged on the upper side of the outer cover 2 to facilitate the gripping and carrying of an ROV operator.
The working principle of the invention is as follows:
when the mechanism does not work, as shown in fig. 5, the cylinder rod of the hydraulic cylinder 6 is in an extending state, when the liquid level sensor 15 detects that the liquid level in the gas production cover 5 reaches a set value, as shown in fig. 6, the hydraulic cylinder 6 starts to drive the gas production piston 17 to move backwards, so that the gas production cylinder 13 is filled with gas, and as the front end of the gas production cylinder 13 is provided with the one-way valve 12, gas can only enter the gas production cylinder 13 during gas collection and cannot overflow, and after gas production is completed and the gas production device is sent to a laboratory, the throttle valve 11 is unscrewed, and even if the gas is output from the gas production cylinder 13.
In addition, if less gas is collected in the gas production hood 5, when the starting condition of the liquid level sensor 15 is not met, or the jet quantity of the submarine gas is extremely large, the liquid level balance in the gas production hood 5 is seriously disturbed, and when the liquid level sensor 15 cannot work normally, an ROV operator repeatedly turns on an ROV illuminating lamp and sends a signal through the photosensitive sensor 9 to forcedly start the hydraulic cylinder 6 to act for gas production operation.
Claims (3)
1. A deep sea normal position gas pressurize sampling system, its characterized in that: the device comprises a supporting table (3), a gas production cover (5), a gas production cylinder (13) and a hydraulic cylinder (6), wherein the gas production cover (5) is arranged on the lower side of a table top of the supporting table (3), the gas production cylinder (13) and the hydraulic cylinder (6) are both arranged on the table top of the supporting table (3), a gas production piston (17) is arranged in the gas production cylinder (13), the gas production piston (17) is driven to move by the hydraulic cylinder (6), a one-way valve (12) is arranged at the front end of the gas production cylinder (13), the one-way valve (12) is communicated with the gas production cover (5) through a gas production pipe (14), an exhaust pipe (16) is arranged on one side of the front end of the gas production cylinder (13), and a throttle valve (11) is arranged on the exhaust pipe (16);
a liquid level sensor (15) is arranged on a gas production pipe port (141) of the gas production pipe (14) extending into the gas production cover (5), and the hydraulic cylinder (6) is controlled to be started by sending a signal through the liquid level sensor (15);
a photosensitive sensor (9) is arranged on the table top of the supporting table (3), and when the liquid level sensor (15) cannot work, the hydraulic cylinder (6) sends out a signal through the photosensitive sensor (9) to control starting;
each supporting leg of the supporting table (3) is provided with a gas production cover fixing rod (4), the free end of each gas production cover fixing rod (4) is provided with a limit column (41), and the gas production cover (5) is clamped and fixed through each limit column (41);
an outer cover (2) is arranged on the supporting table (3), and a buoyancy rope ring (1) is arranged on the upper side of the outer cover (2).
2. The deep sea in-situ gas pressure maintaining sampling system of claim 1, wherein: the hydraulic station (7) and the control system (8) are arranged on the table top of the supporting table (3), the hydraulic station (7) is controlled to be started by receiving a signal instruction through the control system (8), and the hydraulic cylinder (6) is controlled to be started through the hydraulic station (7).
3. The deep sea in-situ gas pressure maintaining sampling system of claim 1, wherein: the gas production cover (5) is hemispherical.
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| CN201711337766.9A CN107966333B (en) | 2017-12-14 | 2017-12-14 | Deep sea in-situ gas pressure maintaining sampling system |
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| CN201711337766.9A CN107966333B (en) | 2017-12-14 | 2017-12-14 | Deep sea in-situ gas pressure maintaining sampling system |
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| CN107966333A CN107966333A (en) | 2018-04-27 |
| CN107966333B true CN107966333B (en) | 2023-07-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110132664A (en) * | 2019-06-24 | 2019-08-16 | 自然资源部第二海洋研究所 | A kind of deep seafloor hydrothermal vent pressure maintaining collector |
| CN110641657A (en) * | 2019-08-23 | 2020-01-03 | 冯鑫 | Deep sea robot of crawling |
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| CN105699129A (en) * | 2016-01-26 | 2016-06-22 | 浙江大学 | Whole-sea-depth airtight sampler |
| CN105586253A (en) * | 2016-03-01 | 2016-05-18 | 哈尔滨工程大学 | Deep ocean water pressure-retention sampling device based on controllable one-way valve cascaded structure |
| CN205710740U (en) * | 2016-03-01 | 2016-11-23 | 哈尔滨工程大学 | Deep sea water pressure keeping sampler based on controllable check valve cascaded structure |
| CN106404465A (en) * | 2016-11-19 | 2017-02-15 | 浙江大学 | Deep-sea integrated energy-accumulator pressure-maintaining sampler mechanism |
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