A deep seabed sediment in-situ analytical gas monitoring and collection device

Abstract

The present invention belongs to the field of ocean monitoring technology, and in particular to a deep seabed sediment in-situ analysis gas monitoring and collection device. In view of the fact that the traditional stirring method cannot achieve a good stirring effect due to the limited range, resulting in a low gas analysis rate, the following scheme is proposed, including an outer cylinder, an inner cylinder is provided inside the outer cylinder, the tops of the outer cylinder and the inner cylinder are fixedly connected with the same top plate, and a circulation-promoting analysis component is provided inside the outer cylinder, the circulation-promoting analysis component includes an inner bin and a circulation bin, and the inner bin is located inside the inner cylinder. The deep seabed sediment in-situ analysis gas monitoring and collection device disclosed by the present invention utilizes a circulation-promoting analysis component to change the motion state of the sediment in a sealed environment, so that it flows in the inner bin and the circulation bin, accelerating the gas analysis effect, and adopting the sediment-promoting flow method instead of traditional stirring can further improve the stirring effect of the sediment, thereby improving the gas analysis.

Description

Technical Field

[0001] The present invention relates to the field of ocean monitoring technology, and in particular to a device for monitoring and collecting in-situ analytical gas from deep seabed sediments. Background Art

[0002] Submarine hydrocarbon seepage refers to a natural phenomenon in which hydrocarbon components, enriched beneath the seafloor in the marine environment, migrate upward to the seafloor due to buoyancy or high-pressure displacement within the formation along structures such as faults, pores, unconformities, mud volcanoes, and diapirs. Submarine seepage hydrocarbons primarily include gaseous hydrocarbons (primarily CH4), medium-molecular-weight hydrocarbons, and some high-molecular-weight hydrocarbon compounds. Seepage hydrocarbons can form hydrocarbon anomalies in seafloor sediments, seawater, and even the atmosphere above the seawater. These seepage hydrocarbons not only indicate favorable oil and gas accumulation areas, but their rich geochemical information can also be used to identify the source and genesis of the seepage hydrocarbons, identify oil and gas properties, and trace source characteristics, including information such as organic matter type, sedimentary environment, and thermal maturity. These seepage hydrocarbons have great potential for application in deepwater oil and gas exploration. In addition to diffusing into seawater in the form of bubbles and dissolved gases, gaseous hydrocarbons (mainly methane) leaking from the seabed are also partially adsorbed in sediments. Therefore, simultaneous monitoring of the seabed sediments is necessary. This monitoring process requires in-situ sampling and testing of the seabed sediments to ensure the accuracy of the monitoring results. Currently, there are many disadvantages to this type of in-situ gas analysis monitoring equipment. For example, in the gas analysis process of sediments, in order to promote gas analysis efficiency, a stirring and mixing method is used. However, the traditional stirring method cannot achieve a good stirring effect due to its limited range, resulting in a low gas analysis rate. Summary of the Invention

[0003] The present invention discloses an in-situ analytical gas monitoring and collection device for deep seabed sediments, aiming to solve the technical problem in the background art that the traditional stirring method cannot achieve a good stirring effect due to range limitation, resulting in a low gas analysis rate.

[0004] The present invention proposes an in-situ analysis gas monitoring and collection device for deep seabed sediments, comprising an outer cylinder, an inner cylinder being arranged inside the outer cylinder, the tops of the outer cylinder and the inner cylinder being fixedly connected with the same top plate, and a circulation-promoting analysis component being arranged inside the outer cylinder, and the circulation-promoting analysis component comprising an inner bin and a circulation bin, the inner bin being located inside the inner cylinder, and the circulation bin being located between the outer cylinder and the inner cylinder, symmetrical notches being opened on the inner cylinder, the notches connecting the inner cylinder and the outer cylinder, and arc-shaped guide plates being arranged at the notches, which are fixedly connected to the inner cylinder, and drainage fans being arranged in the two symmetrical notches, and two symmetrical motor boxes being fixedly connected to the upper side of the top plate, and drive motors being fixedly connected inside the two motor boxes, and the output ends of the two drive motors being connected with a rotating shaft through a coupling, and the other ends of the rotating shafts passing through the top plate and the drainage fan on the same side and being movably connected to the bottom inner wall of the circulation bin.

[0005] By providing a circulation-promoting analysis component, the circulation-promoting analysis component can change the movement state of the sediment in a sealed environment, causing it to flow in the inner chamber and the circulation chamber, accelerating the gas analysis effect, and using the sediment-promoting flow method instead of traditional stirring to further improve the stirring effect of the sediment, thereby improving the gas analysis; the arc-shaped guide plate and the drainage fan can promote the circulation process of the sediment in the circulation chamber and the inner chamber.

[0006] In a preferred solution, two symmetrical heating seats are fixedly connected to the inner cylinder, both heating seats are located in the circulation chamber, and multiple equidistant electric heating plates are fixedly connected to both heating seats.

[0007] By providing a heating seat and an electric heating plate, when the sediment flows in the circulation chamber, the electric heating plate on the heating seat will work to heat the sediment flowing through, thereby increasing the temperature of the sediment and accelerating the gas decomposition efficiency of the sediment; heating the flowing sediment in the circulation chamber can ensure the uniformity of the sediment heating process.

[0008] In a preferred embodiment, the inner cylinder is provided with two symmetrical built-in seats, and the two built-in seats are both located inside the inner bin; the two built-in seats are each provided with a motor chamber and two side chambers, the motor chamber is located in the middle of the built-in seat, the two side chambers are symmetrically distributed on both sides of the motor chamber, and a vibration-promoting analysis component is provided between the two built-in seats; the vibration-promoting analysis component includes two H-shaped motor frames and four side plates, the two H-shaped motor frames are respectively located inside the two motor chambers, the four side plates are respectively located inside the four side chambers, and the motor chamber and the two side plates on the same side are respectively located between the motor chamber and the two side plates. The four side chambers are fixedly connected with connecting rods, the connecting rods and the built-in seats are movably connected, and sliding grooves are provided inside the four side chambers. The four side panels are movably connected to the four side chambers, and vibration motors are fixedly connected to the two H-shaped motor frames; three equidistant rectangular mounting grooves are provided on the four side panels, and mounting plates are fixedly connected inside the rectangular mounting grooves, and multiple vibration rods with equal distances up and down are arranged between two symmetrical mounting plates on non-sides, and functional springs are fixedly connected at both ends of the multiple vibration rods, and the functional springs are fixedly connected to adjacent mounting plates.

[0009] By providing a vibration-promoted analysis component, the vibration-promoted analysis component can use a vibration motor to drive multiple vibration rods in the inner chamber to vibrate at high frequency, thereby increasing the contact effect between the vibration rods and the sediment in the inner chamber, and improving the gas analysis rate of the sediment; the functional springs on both sides of the vibration rods can increase the shaking effect of the vibration rods, thereby improving the vibration efficiency of the vibration rods.

[0010] In a preferred solution, a bottom cylinder is provided below the outer cylinder, and two symmetrical motor seats are fixedly connected to the outside of the outer cylinder, the lower ends of the motor seats are fixedly connected to the bottom cylinder, and the insides of the two motor seats are fixedly connected to reversing motors, the output end of the reversing motor is connected to a short shaft through a coupling, and the other end of the short shaft is movably connected to the upper side of the bottom cylinder, and the outsides of the two short shafts are fixedly connected to sealing plates, both sealing plates are located between the outer cylinder and the bottom cylinder, and the two sealing plates fit together.

[0011] By providing a reversing motor and a sealing plate, two flip-type sealing plates are used to form a sealed environment after the sediment enters the inner chamber, thereby facilitating the detection of analytical gas for quantitative sediment.

[0012] In a preferred embodiment, the upper side of the top plate is fixedly connected with an air cylinder, the air cylinder and the inner cylinder are in a communicating state, and a valve is provided inside the air cylinder, and a control switch is provided on the outside of the air cylinder; the upper side of the air cylinder is fixedly connected with the air chamber, and the top inner wall of the air chamber is provided with a mounting groove, and the interior of the mounting groove is fixedly connected with a collection box; the upper side of the top plate is fixedly connected with an upper seat, and a fixing seat is provided above the upper seat, and an annular mounting groove is provided on the upper side of the upper seat and the lower side of the fixing seat, and a magnetic ring is fixedly connected inside the annular mounting groove of the upper seat, an electromagnet is provided inside the annular mounting groove of the fixing seat, and a plurality of sliding rods are fixedly connected to the upper side of the upper seat, and a plurality of circular holes are provided on the fixing seat, and the plurality of sliding rods are movably connected inside the plurality of circular holes, and a symmetrical return spring is fixedly connected between the upper seat and the fixing seat, and two ends of the return spring are respectively fixedly connected to the upper side of the upper seat and the lower side of the fixing seat.

[0013] By providing an air chamber, an air cylinder and a valve, the air chamber is located above the outer cylinder and the inner cylinder. It is in a sealed state when collecting sediments, and no sediments or seawater enters. During the monitoring process, due to the sealed environment, the seawater and sediments in the inner chamber will not interfere with the air chamber, so it is convenient for the upward discharge and collection of the gas after analysis.

[0014] As can be seen from the above, the beneficial effects of the present invention are:

[0015] 1. The deep seabed sediment in-situ analysis gas monitoring and collection device provided has the ability to change the movement state of sediments in a sealed environment, causing them to flow in the inner chamber and circulation chamber, accelerating the gas analysis effect. The use of sediment-promoting flow instead of traditional stirring can further improve the sediment stirring effect, thereby improving gas analysis.

[0016] 2. During the analysis process, the vibration motors located on the two built-in seats are in a synchronous working state. The vibration motors will drive the H-shaped motor frame to vibrate at high frequency. The side panels on both sides will vibrate along with the H-shaped motor frame, so that the multiple vibration rods located on the side panels are forced to change their motion state, and the contact effect between the vibration rods and the sediment is enhanced;

[0017] 3. The vibration-assisted degassing component is suitable for auxiliary links in the sediment gas degassing process. That is, the vibration-assisted degassing component can use a vibration motor to drive multiple vibration rods in the inner chamber to vibrate at high frequency, thereby increasing the contact effect between the vibration rods and the sediment in the inner chamber and improving the gas degassing rate of the sediment; the functional springs on both sides of the vibration rods can increase the shaking effect of the vibration rods, thereby improving the vibration efficiency of the vibration rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall cross-sectional structure of a deep seabed sediment in-situ analytical gas monitoring and collection device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the outer and inner cylinder structures of a deep seabed sediment in-situ desorption gas monitoring and collection device proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a circulating desorption-promoting component of a deep seabed sediment in-situ desorption gas monitoring and collection device proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the built-in base of the deep seabed sediment in-situ analysis gas monitoring and collection device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the side panel structure of a deep seabed sediment in-situ desorption gas monitoring and collection device proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the outer cylinder of a deep seabed sediment in-situ analysis gas monitoring and collection device proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the bottom cylinder structure of a deep seabed sediment in-situ desorption gas monitoring and collection device proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the upper seat structure of the deep seabed sediment in-situ analytical gas monitoring and collection device proposed by the present invention.

[0026] In the figure: 1, outer cylinder; 2, inner cylinder; 3, top plate; 4, circulation-promoting analysis component; 401, inner chamber; 402, circulation chamber; 403, arc-shaped guide plate; 404, rotating shaft; 405, drainage fan; 406, motor box; 407, driving motor; 5, heating seat; 6, electric heating plate; 7, built-in seat; 8, motor room; 9, side chamber; 10, vibration-promoting analysis component; 1001, H-shaped motor frame; 1002, side Plate; 1003, vibration motor; 1004, connecting rod; 1005, mounting plate; 1006, vibration rod; 1007, functional spring; 11, bottom cylinder; 12, motor seat; 13, reversing motor; 14, sealing plate; 15, air cylinder; 16, valve; 17, air chamber; 18, collection box; 19, upper seat; 20, fixing seat; 21, magnetic ring; 22, electromagnet; 23, slide rod; 24, reset spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] The deep seabed sediment in-situ desorption gas monitoring and collection device disclosed in the present invention is mainly used in scenarios where the gas desorption rate is low.

[0029] Reference Figure 1-3 , a deep seabed sediment in-situ analysis gas monitoring and collection device, including an outer cylinder 1, an inner cylinder 2 is arranged inside the outer cylinder 1, the top of the outer cylinder 1 and the inner cylinder 2 are connected to the same top plate 3 by bolts, and a circulation-promoting analysis component 4 is arranged inside the outer cylinder 1, and the circulation-promoting analysis component 4 includes an inner bin 401 and a circulation bin 402, the inner bin 401 is located inside the inner cylinder 2, and the circulation bin 402 is located between the outer cylinder 1 and the inner cylinder 2, and a symmetrical notch is opened on the inner cylinder 2, the notch connects the inner cylinder 2 and the outer cylinder 1, and an arc-shaped notch is provided at the notch. The guide plate 403 and the arc-shaped guide plate 403 are connected to the inner tube 2 by bolts, and two symmetrical notches are provided with a drainage fan 405. The upper side of the top plate 3 is connected to two symmetrical motor boxes 406 by bolts. The interiors of the two motor boxes 406 are connected to drive motors 407 by bolts. The output ends of the two drive motors 407 are connected to the rotating shaft 404 through a coupling, and the other end of the rotating shaft 404 passes through the top plate 3 and the drainage fan 405 on the same side and is rotatably connected to the bottom inner wall of the circulation chamber 402 through a bearing.

[0030] Specifically, after sediment collection is completed, the outer cylinder 1 and the inner cylinder 2 are closed to form a sealed environment, and then the analytical gas detection is performed. During the process, the two drive motors 407 are started at the same time, and the two drainage fans 405 rotate to change the state of the sediment in the inner chamber 401. The sediment is pushed into the circulation chamber 402 by the drainage fans 405, and the sediment forms a flowing state in the inner chamber 401 and the circulation chamber 402;

[0031] In a specific application scenario, the circulation-promoting analysis component 4 is suitable for the sediment stirring link in the sediment analysis gas process, that is, the circulation-promoting analysis component 4 can change the movement state of the sediment in a sealed environment, so that it flows in the inner chamber 401 and the circulation chamber 402, accelerating the gas analysis effect, and using the sediment-promoting flow method instead of traditional stirring can further improve the sediment stirring effect, thereby improving the gas analysis; the arc-shaped guide plate 403 and the drainage fan 405 can promote the circulation process of the sediment in the circulation chamber 402 and the inner chamber 401.

[0032] Reference Figure 1 、 Figure 2 and Figure 3 Two symmetrical heating seats 5 are connected to the inner cylinder 2 by bolts. Both heating seats 5 are located in the circulation chamber 402, and multiple equidistant electric heating plates 6 are connected to the two heating seats 5 by bolts. The electric heating plates 6 are in the form of a built-in heating wire. The heating treatment is carried out by powering on. The temperature of the electric heating plates 6 can be controlled by connecting to a controller, so that the temperature can be controlled.

[0033] Specifically, when the sediment flows in the circulation chamber 402, the electric heating plate 6 on the heating seat 5 will work to heat the sediment flowing through, thereby increasing the temperature of the sediment and accelerating the gas decomposition efficiency of the sediment; heating the flowing sediment in the circulation chamber 402 can ensure the uniformity of the sediment heating process.

[0034] Reference Figure 1 、 Figure 3 and Figure 4 Two symmetrical built-in seats 7 are provided on the inner cylinder 2, and the two built-in seats 7 are both located inside the inner warehouse 401; a motor chamber 8 and two side chambers 9 are provided on the two built-in seats 7, the motor chamber 8 is located in the middle of the built-in seat 7, and the two side chambers 9 are symmetrically distributed on both sides of the motor chamber 8, and a vibration-promoting analysis component 10 is provided between the two built-in seats 7.

[0035] Reference Figure 3 、 Figure 4 and Figure 5The vibration-promoting analysis component 10 includes two H-shaped motor frames 1001 and four side plates 1002. The two H-shaped motor frames 1001 are respectively located inside the two motor chambers 8, and the four side plates 1002 are respectively located inside the four side chambers 9. The motor chamber 8 and the two side plates 1002 on the same side are connected by bolts with connecting rods 1004. The connecting rods 1004 are slidably connected to the built-in seat 7, and the interiors of the four side chambers 9 are provided with sliding grooves. The four side plates 1002 are slidably connected to the four side chambers 9. The two H-shaped motor frames 1001 are connected with vibration motors 1003 by bolts. The vibration motors 1003 are on the rotor shaft. A set of adjustable eccentric blocks are installed at each end, and the centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks is used to obtain the exciting force; the vibration motor has a large vibration frequency range, and only when the exciting force and power are properly matched can the mechanical noise be reduced; three equidistant rectangular mounting grooves are provided on the four side panels 1002, and the interior of the rectangular mounting grooves is connected to the mounting plate 1005 by bolts, and a plurality of vibration rods 1006 with equal distances up and down are arranged between the two symmetrical mounting plates 1005 located on non-same sides, and both ends of the plurality of vibration rods 1006 are connected to the functional springs 1007 by bolts, and the functional springs 1007 and the adjacent mounting plates 1005 are connected by bolts.

[0036] Specifically, during the analysis process, the vibration motors 1003 located on the two built-in seats 7 are in a synchronous working state. The vibration motors 1003 will drive the H-shaped motor frame 1001 to vibrate at high frequency, and the side plates 1002 located on both sides will vibrate along with the H-shaped motor frame 1001, so that the multiple vibration rods 1006 located on the side plates 1002 are forced to change their motion state, and the contact effect between the vibration rods 1006 and the sediment is increased;

[0037] In a specific application scenario, the vibration-promoted analysis component 10 is suitable for an auxiliary link in the sediment gas analysis process, that is, the vibration-promoted analysis component 10 can use the vibration motor 1003 to drive the multiple vibration rods 1006 in the inner chamber 401 to vibrate at high frequency, thereby increasing the contact effect between the vibration rod 1006 and the sediment in the inner chamber 401, and improving the gas analysis rate of the sediment; the functional springs 1007 on both sides of the vibration rod 1006 can increase the shaking effect of the vibration rod 1006, thereby improving the vibration efficiency of the vibration rod 1006.

[0038] Reference Figure 1 、 Figure 6 and Figure 7A bottom cylinder 11 is provided below the outer cylinder 1. The outside of the outer cylinder 1 is connected to two symmetrical motor seats 12 by bolts. The lower end of the motor seat 12 is connected to the bottom cylinder 11 by bolts, and the inside of the two motor seats 12 are connected to the reversing motor 13 by bolts. The output end of the reversing motor 13 is connected to a short shaft through a coupling, and the other end of the short shaft is rotatably connected to the upper side of the bottom cylinder 11 through a bearing. The outside of the two short shafts are connected to a sealing plate 14 by bolts. The two sealing plates 14 are both located between the outer cylinder 1 and the bottom cylinder 11, and the two sealing plates 14 fit each other.

[0039] Specifically, after the device is lowered, the bottom cylinder 11 will contact the sediment on the seabed first. As the downward pressure continues, the sediment will enter the inner chamber 401. Then, the two motor seats 12 are reversed by the motors 13, and the two sealing plates 14 are flipped toward the bottom cylinder 11 until they fit together. At this time, a sealed environment is formed in the outer cylinder 1 and the inner cylinder 2. The use of two flip-type sealing plates 14 facilitates the formation of a sealed environment after the sediment enters the inner chamber 401, thereby facilitating the detection of analytical gas for quantitative sediments.

[0040] Reference Figure 1 、 Figure 6 and Figure 8 The upper side of the top plate 3 is connected with an air cylinder 15 by bolts, the air cylinder 15 and the inner cylinder 2 are in a communicating state, and a valve 16 is provided inside the air cylinder 15, and a control switch is provided on the outside of the air cylinder 15; the upper side of the air cylinder 15 is connected with an air chamber 17 by bolts, and the top inner wall of the air chamber 17 is provided with a mounting groove, and the inside of the mounting groove is connected with a collection box 18 by bolts; the upper side of the top plate 3 is connected with an upper seat 19 by bolts, and a fixing seat 20 is provided above the upper seat 19, and the upper side of the upper seat 19 and the lower side of the fixing seat 20 are both opened. It is provided with an annular mounting groove, the inside of the annular mounting groove of the upper seat 19 is connected with a magnetic ring 21 by bolts, the inside of the annular mounting groove of the fixed seat 20 is provided with an electromagnet 22, and the upper side of the upper seat 19 is connected with multiple slide rods 23 by bolts, and the fixed seat 20 is provided with multiple circular holes. The multiple slide rods 23 are located inside the multiple circular holes and are slidably connected. A symmetrical reset spring 24 is connected between the upper seat 19 and the fixed seat 20 by bolts, and the two ends of the reset spring 24 are respectively connected to the upper side of the upper seat 19 and the lower side of the fixed seat 20 by bolts.

[0041] Specifically, the fixing seat 20 is installed on the lowering equipment and moved to the seabed that needs to be tested. After the electromagnet 22 is energized, it forms opposite magnetic poles with the magnetic ring 21, and the upper seat 19 moves downward due to the repulsive force, and the bottom cylinder 11 is inserted into the interior of the seabed sediment (at this time, the slide rod 23 slides on the fixing seat 20, and the reset spring 24 is stretched and elastically deformed. After the electromagnet 22 is powered off, the reaction force of the elastic deformation of the reset spring 24 will drive the upper seat 19 to reset). During the monitoring process, after a sealed environment is formed, the valve 16 on the gas cylinder 15 is opened, and the gas analyzed in the sediment will enter the gas chamber 17 through the gas cylinder 15, and the collection box 18 will collect and analyze the precipitated gas;

[0042] It should be noted that the air chamber 17 is located above the outer tube 1 and the inner tube 2. It is in a sealed state when the sediment is collected, and no sediment or seawater will enter. During the monitoring process, due to the sealed environment, the seawater and sediment in the inner chamber 401 will not interfere with the air chamber 17, so it is convenient for the upward discharge and collection of the gas after analysis.

[0043] Working principle: When in use, the fixing seat 20 is installed on the lowering equipment and moved to the seabed to be inspected. After the electromagnet 22 is energized, it forms opposite magnetic poles with the magnetic ring 21. The upper seat 19 is repelled and moves downward. The bottom cylinder 11 is inserted into the interior of the seabed sediment. As the downward pressure continues, the sediment will enter the inner chamber 401. Then, the motors 13 on the two motor seats 12 are reversed, and the two sealing plates 14 are flipped toward the bottom cylinder 11 until they fit together. At this time, a sealed environment is formed in the outer cylinder 1 and the inner cylinder 2.

[0044] During the analysis gas detection process, the valve 16 on the gas cylinder 15 is opened, and the gas analyzed in the sediment will enter the gas chamber 17 through the gas cylinder 15. The collection box 18 collects and analyzes the precipitated gas. The two drive motors 407 are started at the same time, and the two drainage fans 405 rotate to change the state of the sediment in the inner chamber 401. The sediment is pushed into the circulation chamber 402 by the drainage fan 405. The sediment forms a flowing state in the inner chamber 401 and the circulation chamber 402. During the flow of the sediment in the circulation chamber 402, the electric heater on the heating seat 5 The plate 6 will work to heat the sediment flowing through, thereby increasing the temperature of the sediment and accelerating the gas decomposition efficiency of the sediment; at the same time, the vibration motors 1003 located on the two built-in seats 7 are in a synchronous working state, and the vibration motors 1003 will drive the H-shaped motor frame 1001 to vibrate at high frequency, and the side plates 1002 located on both sides will vibrate along with the H-shaped motor frame 1001, so that the multiple vibration rods 1006 located on the side plates 1002 are forced to change the motion state, and the contact effect between the vibration rods 1006 and the sediment is increased.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A deep seabed sediment in-situ desorption gas monitoring and collection device, comprising an outer cylinder (1), characterized in that: The inner cylinder (2) is provided inside the outer cylinder (1), the tops of the outer cylinder (1) and the inner cylinder (2) are fixedly connected to the same top plate (3), and the inner cylinder (1) is provided with a circulation-promoting analysis component (4), the circulation-promoting analysis component (4) comprises an inner bin (401) and a circulation bin (402), the inner bin (401) is located inside the inner cylinder (2), and the circulation bin (402) is located between the outer cylinder (1) and the inner cylinder (2), the inner cylinder (2) is provided with symmetrical notches, the notches communicate with the inner cylinder (2) and the outer cylinder (1), and an arc-shaped guide plate ( 403), the arc-shaped guide plate (403) is fixedly connected to the inner cylinder (2), two symmetrical notches are each provided with a drainage fan (405), and the upper side of the top plate (3) is fixedly connected to two symmetrical motor boxes (406), the interiors of the two motor boxes (406) are fixedly connected to drive motors (407), the output ends of the two drive motors (407) are connected to the rotating shaft (404) through a coupling, and the other end of the rotating shaft (404) passes through the top plate (3) and the drainage fan (405) on the same side and is movably connected to the bottom inner wall of the circulation chamber (402).

2. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 1, characterized in that: Two symmetrical heating seats (5) are fixedly connected to the inner cylinder (2), both heating seats (5) are located in the circulation chamber (402), and both heating seats (5) are fixedly connected to a plurality of equidistant electric heating plates (6).

3. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 1, characterized in that: Two symmetrical built-in seats (7) are provided on the inner cylinder (2), and both built-in seats (7) are located inside the inner bin (401).

4. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 3, characterized in that: A motor chamber (8) and two side chambers (9) are provided on the two built-in seats (7), the motor chamber (8) is located in the middle of the built-in seat (7), the two side chambers (9) are located on both sides of the motor chamber (8) and are symmetrically distributed, and a vibration-promoting analysis component (10) is provided between the two built-in seats (7).

5. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 4, characterized in that: The vibration-promoting analysis component (10) includes two H-shaped motor frames (1001) and four side panels (1002), the two H-shaped motor frames (1001) are respectively located inside the two motor chambers (8), the four side panels (1002) are respectively located inside the four side chambers (9), a connecting rod (1004) is fixedly connected between the motor chamber (8) and the two side panels (1002) on the same side, the connecting rod (1004) is movably connected to the built-in seat (7), and a sliding groove is provided inside the four side chambers (9), the four side panels (1002) are movably connected to the four side chambers (9), and a vibration motor (1003) is fixedly connected to the two H-shaped motor frames (1001).

6. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 5, characterized in that: Three equidistant rectangular mounting grooves are provided on each of the four side plates (1002), and a mounting plate (1005) is fixedly connected to the interior of each of the rectangular mounting grooves. A plurality of vibration rods (1006) equidistant in vertical direction are provided between two symmetrical mounting plates (1005) located on different sides, and functional springs (1007) are fixedly connected to both ends of the plurality of vibration rods (1006), and the functional springs (1007) are fixedly connected to adjacent mounting plates (1005).

7. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 1, characterized in that: A bottom cylinder (11) is provided below the outer cylinder (1), and two symmetrical motor seats (12) are fixedly connected to the outside of the outer cylinder (1), the lower ends of the motor seats (12) are fixedly connected to the bottom cylinder (11), and the insides of the two motor seats (12) are fixedly connected to reversing motors (13), the output end of the reversing motor (13) is connected to a short shaft through a coupling, and the other end of the short shaft is movably connected to the upper side of the bottom cylinder (11), and the outsides of the two short shafts are fixedly connected to sealing plates (14), and the two sealing plates (14) are both located between the outer cylinder (1) and the bottom cylinder (11), and the two sealing plates (14) fit together.

8. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 1, characterized in that: An air cylinder (15) is fixedly connected to the upper side of the top plate (3), the air cylinder (15) and the inner cylinder (2) are in a communicating state, a valve (16) is provided inside the air cylinder (15), and a control switch is provided outside the air cylinder (15).

9. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 8, characterized in that: An air chamber (17) is fixedly connected to the upper side of the air cylinder (15), and a mounting groove is provided on the top inner wall of the air chamber (17), and a collection box (18) is fixedly connected inside the mounting groove.

10. The deep seabed sediment in-situ desorption gas monitoring and collection device according to claim 8, characterized in that: The upper side of the top plate (3) is fixedly connected to an upper seat (19), a fixed seat (20) is arranged above the upper seat (19), an annular mounting groove is provided on the upper side of the upper seat (19) and the lower side of the fixed seat (20), a magnetic ring (21) is fixedly connected inside the annular mounting groove of the upper seat (19), an electromagnet (22) is arranged inside the annular mounting groove of the fixed seat (20), and a plurality of slide rods (23) are fixedly connected to the upper side of the upper seat (19), a plurality of circular holes are provided on the fixed seat (20), and the plurality of slide rods (23) are movably connected inside the plurality of circular holes, a symmetrical reset spring (24) is fixedly connected between the upper seat (19) and the fixed seat (20), and the two ends of the reset spring (24) are fixedly connected to the upper side of the upper seat (19) and the lower side of the fixed seat (20), respectively.

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