A comprehensive sampling device for marine geological survey
By designing a comprehensive sampling device containing seabed sampling, seawater sampling and gas collection components, the problems of low collection efficiency and inconsistent sample sites in marine geological surveys are solved, and synchronous collection of gas, water and soil samples and efficient data are achieved. Get it.
Patent Information
- Application Number
- CN202210635213.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2042-06-07
AI Technical Summary
When collecting gas, water and soil samples in existing marine geological surveys, the collection efficiency is low and the sample sites are inconsistent, resulting in data matching errors and the comprehensive collection of gas, water and seabed soil cannot be completed at the same time.
Design a comprehensive sampling device, including a round-type frame, seabed sampling assembly, seawater sampling assembly and gas collection assembly, and realizes seawater and gas through hydraulic cylinders, submersible electric pumps, submersible suit material and cloth sealing layer and one-way valves. Simultaneous collection with seabed soil ensures consistency of the collection points.
It improves the collection efficiency, ensures the consistency of gas, water and soil sample sites, enhances the stability and flexibility of the collection equipment, and avoids errors in sample data.
Smart Images
Figure CN114964914B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of ocean exploration, and in particular to a comprehensive sampling device. Background Art
[0002] Marine geochemical exploration is a means of marine geological survey and an emerging frontier science that serves the rapidly developing marine geological science survey. It can collect coastal and nearshore materials through different sampling methods, and systematically investigate the content characteristics of elements and compounds from above the sea surface to a certain depth below the seabed, as well as the distribution patterns of elements in three-dimensional space. It has the advantages of low cost, fast efficiency and high precision.
[0003] In the study of the distribution of marine water elements, marine environment and pollution, it is necessary to investigate marine water chemistry and potential environmental pollution factors, involving marine airspace, sea surface gas, seawater chemical elements, and comprehensive investigations of seabed soil types and material composition. At present, in marine geological surveys, the gas, water, and seabed soil samples taken are all collected separately, that is, the seabed soil samplers are grab-type and coring-type, the coring type is mainly columnar, and columnar seabed soil samples are taken by special soil samplers such as static pressure or rotary thin-walled soil samplers; water sampling equipment is mostly set above the water surface or at a certain depth underwater, and automatic sampling is performed at a fixed point, at a fixed time, and in a fixed quantity. There is also remote control towing and diving quantitative sampling; gas collection uses the vacuum replacement sampling method in the air layer, etc. In the above-mentioned single collection method, the same instrument cannot comprehensively complete the collection of two forms of substances. Different instruments need to be deployed multiple times to complete the collection of each sample. However, the landing point of the instrument deployed each time will have deviations, resulting in the data matching of each sample may be misplaced. Marine geochemical sampling hopes that the air, water, and soil samples collected are located at the same station to ensure the accuracy of the analysis results. In addition, the collection efficiency of the single collection method is low. Summary of the invention
[0004] The purpose of the present invention is to provide a comprehensive sampling device for marine geological surveys, which can simultaneously complete continuous sampling of seawater, collect gas released upward from water bodies and bottom mud, and take columnar seabed soil samples, so as to ensure that the gas, water and soil sample sites are collected at the same station and improve the collection efficiency.
[0005] The present invention is achieved through the following technical solutions:
[0006] A comprehensive sampling device for marine geological survey, comprising a comprehensive sampling body and a seabed sampling assembly, a seawater sampling assembly and a gas collection assembly installed on the comprehensive sampling body, wherein the comprehensive sampling body is a truncated cone frame, the upper table of the truncated cone frame is a mounting plate, and the seabed sampling assembly, the seawater sampling assembly and the gas collection assembly are mounted through the mounting plate; the seabed sampling assembly comprises a vertically downward hydraulic cylinder and a columnar sampling tube connected to the telescopic rod in line with the telescopic rod of the hydraulic cylinder; the seawater sampling assembly comprises a water intake pipe installed perpendicular to the mounting plate, The end is connected to a hose leading to the deck, and a submersible electric pump is installed at the lower end of the water intake pipe; the gas collection component includes a sealing layer coated on the side of the truncated cone frame, and a mounting column vertically installed on the mounting plate, a gas collecting bottle with the bottle mouth facing downward is installed on the mounting column, the gas collecting bottle is filled with water, and the bottle mouth of the gas collecting bottle is connected to conduit 1 and conduit 2, wherein the other end of conduit 1 is connected to the bottom surface of the mounting plate, a one-way valve 1 that is unidirectionally connected to the gas collecting bottle is installed on conduit 1, and a one-way valve 2 that is unidirectionally connected to the outside of the gas collecting bottle is installed on conduit 2, and a vent valve is provided on conduit 1 in the section between the one-way valve 1 and the mounting plate.
[0007] Further: the mounting plate is divided into two layers, namely the upper mounting plate and the lower mounting plate, the upper mounting plate and the lower mounting plate are fixed by a vertical fixing rod, the hydraulic cylinder, the water intake pipe, and the mounting column all pass through the upper mounting plate and the lower mounting plate, and are fixedly connected to the upper mounting plate and the lower mounting plate. By fixing the upper mounting plate and the lower mounting plate together, the installation stability of the hydraulic cylinder, the water intake pipe, and the mounting column is greatly enhanced, and it is especially important to improve the stability of the hydraulic cylinder when collecting seabed soil samples.
[0008] Further: the area of the lower mounting plate is equal to, or less than the area of the upper mounting plate, one end of the support rod on the side of the truncated cone frame is connected to the bottom of the truncated cone frame, and the other end is connected to the lower mounting plate, one side of the sealing layer is connected to the bottom of the truncated cone frame, and the other side is connected to the upper mounting plate. Avoid contact and interference between the sealing layer and the support rod, and prevent leakage caused by wear of the sealing layer.
[0009] Further: the sealing layer is made of diving suit material. It is waterproof, breathable, light, soft and easy to install.
[0010] Further: one side of the diving suit material cloth connected to the upper mounting plate is pressed and connected to the upper mounting plate by a pressure plate connected to the mounting plate by bolts, and a rubber pad is placed under the pressure plate to ensure the sealing of the connection between the diving suit material cloth and the upper mounting plate.
[0011] Further: a foot pad is provided at the bottom of the truncated cone frame, and a weight block is provided under the foot pad. The foot pad improves the stability of the truncated cone frame on the seabed, and the weight block not only improves the stability of the truncated cone frame on the seabed but also increases the sinking speed of the truncated cone frame.
[0012] Further: a filter is installed at the water inlet of the water intake pipe to prevent impurities in the seawater from clogging the water intake pipe.
[0013] Furthermore: a metering pump is provided on the water intake pipe.
[0014] Further: a water depth pressure sensor is installed under the mounting plate.
[0015] Further: there is a ridge on the mounting plate, and the conduit 1 is connected to the highest point of the ridge. Gas gathers at the ridge and is more easily collected by the conduit 1.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] 1. Put the device into the predetermined location for collecting samples in the sea. The device can collect seawater, gas released from seawater and bottom mud, and seabed soil samples at the same collection point to ensure that the gas, water and soil samples collected are at the same station.
[0018] Second, the device is placed at a predetermined location for collecting samples in the sea. The device can simultaneously collect seawater, gases released from seawater and bottom mud, and seabed soil samples, thereby improving collection efficiency.
[0019] 3. The device has a compact structure and is flexible to deploy. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the present invention;
[0021] Figure 2 for Figure 1 A schematic diagram of a half-section view at center A;
[0022] In the figure:
[0023] 1. Integrated sampling body; 1.1. Cone-shaped frame; 1.2. Lower mounting plate; 1.3. Upper mounting plate; 1.4. Rubber pad; 1.5. Pressure plate; 1.6. Fixing rod; 2. Seabed sampling assembly; 2.1. Hydraulic cylinder; 2.2. Sampling tube; 3. Seawater sampling assembly; 3.1. Water intake pipe; 3.2. Hose; 3.3. Submersible electric pump; 3.4. Filter; 3.5. Metering pump; 4. Gas collection assembly; 4.1. Diving suit material cloth; 4.2. Mounting column; 4.21. Vent; 4.3. Gas collecting bottle; 4.4. Conduit 1; 4.41. One-way valve 1; 4.5. Conduit 2; 4.6. Deflation valve; 5. Foot pad; 6. Weight block; 7. Water depth pressure sensor. DETAILED DESCRIPTION
[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0026] A comprehensive sampling device for marine geological surveys comprises a comprehensive sampling body 1 and a seabed sampling assembly 2, a seawater sampling assembly 3 and a gas collection assembly 4 installed on the comprehensive sampling body 1. The comprehensive sampling body 1 is a truncated cone frame 1.1, the upper table of the truncated cone frame 1.1 is a mounting plate, and the mounting plate is divided into two layers, namely an upper mounting plate 1.3 and a lower mounting plate 1.2, the area of the lower mounting plate 1.2 is equal to the area of the upper mounting plate 1.3, and the upper mounting plate 1.3 and the lower mounting plate 1.2 are fixed by a vertical fixing rod 1.6.
[0027] The seabed sampling assembly 2 includes a hydraulic cylinder 2.1 pointing vertically downward and a columnar sampling tube 2.2 connected to the telescopic rod in line with the telescopic rod of the hydraulic cylinder 2.1. The seawater sampling assembly 3 includes a water intake pipe 3.1 installed perpendicular to the mounting plate, the upper end of the water intake pipe 3.1 is connected to a hose 3.2 leading to the deck, and a submersible electric pump 3.3 is installed at the lower end of the water intake pipe 3.1. The gas collection assembly 4 includes a diving suit material cloth 4.1 wrapped on the side of the truncated cone frame 1.1 and a mounting column 4.2 vertically installed on the mounting plate, one end of the support rod on the side of the truncated cone frame 1.1 is connected to the bottom of the truncated cone frame 1.1, and the other end is connected to the lower mounting plate 1.2, and the diving suit material cloth 4.1 is connected to the bottom of the truncated cone frame 1.1 on one side, and connected to the upper mounting plate 1.3 on the other side. Avoid the diving suit material cloth 4.1 from contacting and interfering with the support rod, and prevent the diving suit material cloth 4.1 from being worn and leaking. One side of the diving suit material cloth 4.1 connected to the upper mounting plate 1.3 is pressed and connected to the upper mounting plate 1.3 by a pressure plate 1.5 bolted to the upper mounting plate 1.3, and a rubber pad 1.4 is placed under the pressure plate 1.5 to ensure the sealing of the connection between the diving suit material cloth 4.1 and the upper mounting plate 1.3; a gas collecting bottle 4.3 with the bottle mouth facing downward is installed on the mounting column 4.2, and the gas collecting bottle 4.3 is filled with pure water. The bottle mouth of the gas collecting bottle 4.3 is connected to a conduit 1 4.4 and a conduit 2 4.5, wherein the other end of the conduit 1 4.1 is connected to the mounting column 4.2, and there is a hollow section in the mounting column 4.2, and the conduit 1 4.4 is connected to the space below the upper mounting plate 1.3 through the hollow section, and a vent hole 4.21 is opened on the side wall of the mounting column 4.2 on the hollow section, and the vent hole 4.21 is located at a position close to the lower surface of the upper mounting plate 1.3. A one-way valve 4.41 is installed on the conduit 1 4.4, which is one-way connected to the gas collecting bottle 4.3. A one-way valve 2 is installed on the conduit 2 4.5, which is one-way connected to the outside of the gas collecting bottle 4.3. A vent valve 4.3 is provided on the conduit 1 4.4 between the one-way valve 4.41 and the upper mounting plate 1.3. There is a ridge on the upper mounting plate 1.3, and the mounting column 4.2 is installed at the highest point of the ridge on the upper mounting plate 1.3. The hydraulic cylinder 2.1, the water intake pipe 3.1, and the mounting column 4.2 all pass through the upper mounting plate 1.3 and the lower mounting plate 1.2, and are fixedly connected to the upper mounting plate 1.3 and the lower mounting plate 1.2. By fixing the upper mounting plate 1.3 and the lower mounting plate 1.2 together, the installation stability of the hydraulic cylinder 2.1, the water intake pipe 3.1, and the mounting column 4.2 is greatly enhanced. It is particularly important to enhance the stability of the hydraulic cylinder 2.1 when collecting seabed soil samples.
[0028] A foot pad 5 is provided at the bottom of the truncated cone frame 1.1, and a weight block 6 is provided under the foot pad 5. The foot pad 5 improves the stability of the truncated cone frame 1.1 on the seabed, and the weight block 6 not only improves the stability of the truncated cone frame 1.1 on the seabed but also increases the sinking speed of the truncated cone frame 1.1. A filter screen 3.4 is installed at the water inlet of the water intake pipe 3.1 to prevent impurities in the seawater from clogging the water intake pipe. A metering pump 3.5 is provided on the water intake pipe 3.1. A water depth pressure sensor 7 is installed under the lower mounting plate 1.2.
[0029] The working principle of the present invention is:
[0030] The device is placed above the sampling point, and under the traction of the weight block 6, the device sinks to the seabed. During the sinking process of the device, the air release valve 4.6 is opened, and the one-way valve 4.41 is closed, and the air contained in the truncated cone frame 1.1 is completely exhausted. The water depth pressure sensor 7 measures the current depth of the device in real time. When the device sinks to the predetermined position on the seabed, the seawater sampling component 3, the gas collection component 4, and the seabed quality sampling component 2 work.
[0031] The working mode of the seawater sampling component 3 is as follows: seawater is pumped onto the deck through a submersible electric pump 3.3, and the seawater is sent to the deck through a water intake pipe 3.1 and a hose 3.2, and a metering pump 3.5 records the amount of sampled seawater. The working mode of the gas collection component 4 is as follows: after the device sinks to a predetermined position on the seabed, the vent valve 4.6 is closed, the one-way valve 1 4.41 is opened, and the one-way valve 2 is opened, and the gas released from the seabed to the atmosphere is collected by the truncated cone frame 1.1 and the diving suit material fabric 4.1, and the gas gathers on the upper mounting plate 1.3, enters the vent hole 4.21 at the bulge of the upper mounting plate 1.3, enters the conduit 1 4.4 through the hollow section of the mounting column 4.2, and then enters the gas collecting bottle 4.3. Through the drainage gas collection method, the pure water in the gas collecting bottle 4.3 is discharged, and the collected gas fills the gas collecting bottle 4.3. After the collection, the one-way valve 1 4.41 and the one-way valve 2 are closed; the working method of the seabed sample sampling component 2 is: the hydraulic cylinder 2.1 drives the telescopic rod to extend, inserts the columnar sampling tube 2.2 into the seabed, and then the hydraulic cylinder 2.1 acts in the reverse direction to pull out the columnar sampling tube 2.2 filled with the seabed sample to complete the sampling.
[0032] Finally, the device is hoisted back onto the deck to collect samples in the gas collecting bottle 4.3 and the columnar sampling tube 2.2.
[0033] It is worth mentioning that the seawater sampling assembly 3 can take seawater samples at any depth. It only needs to sink the device to a predetermined depth and start the submersible electric pump 3.3 according to the value monitored by the water depth pressure sensor 7. The working method is the same as the working method on the seabed mentioned above.
[0034] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.
Claims
1. A comprehensive sampling device for marine geological survey, characterized in that: The invention comprises a comprehensive sampling body (1) and a seabed sampling assembly (2), a seawater sampling assembly (3) and a gas collection assembly (4) installed on the comprehensive sampling body (1). The comprehensive sampling body (1) is a truncated cone frame (1.1), the upper surface of the truncated cone frame (1.1) is a mounting plate, and the seabed sampling assembly (2), the seawater sampling assembly (3) and the gas collection assembly (4) are installed via the mounting plate; the seabed sampling assembly (2) comprises a hydraulic cylinder (2.1) extending vertically downward and a columnar sampling tube (2.2) connected to the telescopic rod of the hydraulic cylinder (2.1) in line with the telescopic rod; the seawater sampling assembly (3) comprises a water intake pipe (3.1) installed perpendicular to the mounting plate, the upper end of the water intake pipe (3.1) being connected to a hose (3.2) leading to the deck, and the lower end of the water intake pipe (3.1) being installed A submersible electric pump (3.3) is provided; a gas collecting assembly (4) comprises a sealing layer covering the side of a truncated cone frame (1.1), a mounting column (4.2) vertically mounted on a mounting plate, a gas collecting bottle (4.3) with its mouth facing downwards mounted on the mounting column (4.2), the gas collecting bottle (4.3) being filled with water, a conduit 1 (4.4) and a conduit 2 (4.5) being connected to the mouth of the gas collecting bottle (4.3), wherein the other end of the conduit 1 (4.4) is connected to the bottom surface of the mounting plate, a one-way valve 1 (4.41) which is unidirectionally connected to the inside of the gas collecting bottle (4.3) is mounted on the conduit 1 (4.4), a one-way valve 2 which is unidirectionally connected to the outside of the gas collecting bottle (4.3) is mounted on the conduit 2 (4.5), and a gas release valve (4.6) is provided on the conduit 1 (4.4) in the section between the one-way valve 1 (4.41) and the mounting plate.
2. A comprehensive sampling device for marine geological survey according to claim 1, characterized in that: The mounting plate is divided into two layers, namely an upper mounting plate (1.3) and a lower mounting plate (1.2). The upper mounting plate (1.3) and the lower mounting plate (1.2) are fixed by a vertical fixing rod (1.6). The hydraulic cylinder (2.1), the water intake pipe (3.1) and the mounting column (4.2) all pass through the upper mounting plate (1.3) and the lower mounting plate (1.2), and are fixedly connected to the upper mounting plate (1.3) and the lower mounting plate (1.2).
3. A comprehensive sampling device for marine geological survey according to claim 2, characterized in that: The area of the lower mounting plate (1.2) is equal to, or less than, the area of the upper mounting plate (1.3); one end of a support rod on the side of the truncated cone frame (1.1) is connected to the bottom of the truncated cone frame (1.1), and the other end is connected to the lower mounting plate (1.2); one side of the sealing layer is connected to the bottom of the truncated cone frame (1.1), and the other side is connected to the upper mounting plate (1.3).
4. A comprehensive sampling device for marine geological survey according to claim 3, characterized in that: The sealing layer is made of diving suit material (4.1).
5. A comprehensive sampling device for marine geological survey according to claim 4, characterized in that: The side of the diving suit material cloth (4.1) connected to the upper mounting plate (1.3) is pressed and connected to the upper mounting plate (1.3) by a pressure plate (1.5) connected to the mounting plate by bolts, and a rubber pad (1.4) is provided under the pressure plate (1.5).
6. A comprehensive sampling device for marine geological survey according to claim 1, characterized in that: A foot pad (5) is provided at the bottom end of the truncated cone frame (1.1), and a weight block (6) is provided under the foot pad (5).
7. The comprehensive sampling device for marine geological survey according to claim 1, characterized in that: A filter screen (3.4) is installed at the water inlet of the water intake pipe (3.1).
8. The comprehensive sampling device for marine geological survey according to claim 1, characterized in that: A metering pump (3.5) is provided on the water intake pipe (3.1).
9. The comprehensive sampling device for marine geological survey according to claim 1, characterized in that: A water depth pressure sensor (7) is installed under the mounting plate.
10. The comprehensive sampling device for marine geological survey according to claim 1, characterized in that: There is a ridge on the mounting plate, and conduit 1 (4.4) is connected at the highest point of the ridge.